Question and answer-XuZhou Ruili new material Co.,Ltd

Lithium battery tape

Lithium battery tape is a special tape used in the production and assembly process of lithium batteries, which plays a key role in ensuring battery performance and safety.🔎 What are the main types of lithium battery tape?There are various types of lithium battery tape, each designed for specific application scenarios and performance requirements:Main application key characteristics of the typeTerminate the tape fixation and protect the end of the battery cell to prevent short circuit, electrolyte resistance, high electrical insulation, strong adhesion, and no residue after peeling offHigh temperature tape is used for processes that require high temperature resistance, such as high-temperature shielding during ear welding, high temperature resistance (PI tape can reach 260 ℃ or above), solvent resistance, corrosion resistance, and electrical insulationWrap, insulate, and protect the positive and negative electrode ear connections with adhesive tape, which is resistant to electrolyte and has excellent heat sealing performance with metal tape and aluminum-plastic film, and is leak proofExpansion tape fixes the core, absorbs external impact forces, and enhances battery safety. It can significantly expand when exposed to electrolyte (up to three times the original thickness in volume), resist impact, and has strong fixationProtective film/blue film covers and protects the battery cells and module shells, providing insulation, wear resistance, puncture resistance, wear resistance, and high adhesionFixing/bundling tape is used to secure multiple battery cells or wiring harnesses during the module/PACK stage. It has high strength (such as fiber tape), high adhesion, good weather resistance, and anti warping performanceEasy to pull adhesive temporarily fixes components such as batteries, making it easy to remove high viscosity, high tensile strength, removable, and residue free adhesive during repair or recycling🛠️ How does tape work from battery cells to modules?Lithium battery tape plays an important role in multiple stages of battery manufacturing.🔋 Internal and external insulation protection of battery cellsWinding fixation: In the battery cell winding process, use termination tape to fix the end to prevent the battery cell from loosening.Ear insulation: After ear welding, wrap the weld seam with ear tape for insulation protection.Internal component protection: Expansion tape is used to absorb external impacts and stabilize the core position.Shell protection: After the square or soft pack battery cells are packaged, a protective film (blue film) will be coated on their surface to provide basic insulation and wear-resistant protection for the battery cells.📦 Battery module and PACK assemblyCell fixing: During module assembly, multiple cells need to be firmly fixed together, and high-strength fiber tape is used for bundling.Insulation and thermal insulation: Insulation or thermal insulation sheets are pasted between battery cells and module casings, and fixed with double-sided tape (such as Desha's flame-retardant double-sided tape).Temporary fixation: Easy to pull glue is often used to temporarily fix components during assembly. Due to its characteristics, it can be removed by stretching when needed, leaving no residue and making it easy to repair and recycle.🧪 Performance core: electrolyte resistance, temperature resistance, insulation and environmental standardsChemical Resistance: The electrolyte inside the battery is highly corrosive, and ordinary tape cannot withstand it. Lithium battery tape must be able to resist long-term immersion of electrolyte, maintain viscosity, not dissolve, and not contaminate the battery.Temperature Resistance: Temperature resistance includes two aspects: one is to adapt to the temperature environment during battery operation, for example, some adhesive tapes used in power batteries need to withstand high temperatures of 125 ℃ for a long time; The second is the high-temperature resistance process in battery manufacturing, such as polyimide (PI) tape, which can withstand temperatures above 260 ℃ for a short period of time and is used for ear welding protection.Electrical Insulation: This is the most basic safety requirement. The tape must have a high dielectric breakdown voltage, effectively isolate current, and prevent internal short circuits. For example, a tape from Desha has a breakdown voltage of up to 14400V, ensuring safety in high voltage environments.Environmental and safety standards: Many tapes comply with environmental directives such as RoHS and halogen-free. In the field of power batteries, it is also required that the tape itself has flame retardancy to comply with relevant safety regulations.Adhesion&Removability: Adhesive tape needs to have suitable adhesion to firmly fix it, but in some applications such as "easy to pull glue", it is also required to be easily peeled off without residue when it needs to be removed, making it easy to repair and recycle✅ How to choose the appropriate lithium battery tape?Clarify application scenarios: Firstly, determine whether the tape is used inside the battery cell or during the battery PACK assembly stage. The core requirements for the tape vary greatly in different scenarios.Focus on core performance: Depending on the application scenario, focus on key indicators such as electrolyte resistance, temperature resistance, electrical insulation strength, and flame retardant rating.Adaptive manufacturing process: The tape needs to adapt to the high-speed automated production line of batteries. Its physical properties such as thickness, viscosity, and stretchability can affect the efficiency and yield of equipment attachment.Confirm environmental and safety compliance: Ensure that the tape meets environmental requirements such as RoHS and halogen-free, and complies with flame retardant safety standards related to power batteries.Assessing supplier capabilities: It is recommended to choose suppliers with systematic certification (such as ISO 9001) and independent research and development capabilities, which can better ensure product quality and supply stability

What is high-temperature tape? What are the main types and uses?

In many industrial manufacturing and electronic assembly scenarios, ordinary adhesive tape can fail, melt, or even burn when exposed to heat, causing serious problems. At this point, professional high-temperature adhesive tape is needed. This article will take you to quickly understand the basic knowledge, mainstream types, and key application areas of high-temperature adhesive tape.1、 What is high-temperature tape?High temperature adhesive tape, as the name suggests, is a special type of industrial tape designed to withstand medium to high temperature environments. It is not a single product, but a vast family.Its core characteristics are:Excellent heat resistance: The substrate and adhesive are specially formulated to work stably for a long time within a specific high temperature range (usually from 120 ℃ to over 300 ℃), without melting, shrinking, or losing viscosity.Stable physical and chemical properties: able to maintain good insulation, corrosion resistance, anti adhesion or mechanical strength at high temperatures, meeting the stringent requirements of specific processes.Accurate functionality: Used for critical processes such as shielding and protection, insulation fixation, bundling and sealing, anti sticking and demolding, it is an indispensable auxiliary material for improving product quality and production safety.Simply put, high-temperature adhesive tape is a professional tool for solving the problems of bonding, protection, and insulation in "hot" environments.2、 Comparison of the Four Main Types and Core UsesTo facilitate your quick selection, we have compiled the following four most common types of high-temperature adhesive tapes and their characteristics:Common types, temperature resistance range (long-term), core characteristics, and main application scenariosPolyimide tape(Golden Finger Tape/Kapton Tape) With top-notch high temperature resistance and electrical insulation from 260 ℃ to 300 ℃, the material is lightweight and strong, usually with yellow or dark green release paper. Electronics industry: Protect gold fingers and sensitive areas during PCB board wave soldering and reflow soldering; Insulation of motor and transformer coils.High temperature spray painting: precise masking during car and furniture baking.Teflon tape(PTFE Teflon tape) Excellent anti adhesion and chemical corrosion resistance at 200 ℃ -260 ℃, with an exceptionally smooth surface, extremely low friction coefficient, and easy cleaning. Packaging and heat sealing: anti sticking layer for plastic bag heat sealing machine and sealing machine.Food industry: drying line, conveyor belt anti sticking.Chemical industry: anti-corrosion sealing gaskets for reaction vessels and pipe openings.PET tapePolyester film tape has good balance between 120 ℃ and 180 ℃, excellent insulation, solvent resistance, and dimensional stability, and high cost-effectiveness. Electronic components: Fixed, insulated, and protected in medium temperature environments.Lithium battery manufacturing: cell bundling and pole ear fixation.General high-temperature shielding.Fiberglass tape has extreme high temperature resistance, thermal insulation, and fire resistance from 200 ℃ to 600 ℃. The substrate is fiberglass woven cloth, which has high strength but is not usually used for precision insulation. Heavy industry: High temperature pipeline wrapping, boiler insulation, welding operation shielding.Heat sealing cutting: protection of the heat sealing blade edge of packaging machinery.Thermal insulation protection.3、 How to make a preliminary selection?Faced with multiple types, you can follow a simple "three-step method" for initial screening:Temperature setting: What is the maximum temperature for my process? (This is the primary screening criterion)Function: What function do I need the most? Is it insulation (choose polyimide/PET), anti sticking (choose Teflon), shielding (choose polyimide/PET), or bundling insulation (choose fiberglass)?Fixed surface: What material surface does the tape need to be attached to? (Smooth, rough, curved?) Do you need no residual glue?Professional tip: The above are basic classifications. In practical applications, there are more detailed products under each type (such as different thicknesses, adhesives, single/double-sided tapes, etc.). The most reliable way is to provide you with specific process parameters (temperature, time, pressure, substrate, etc.), consult our technical engineers, and obtain customized selection recommendations.summaryHigh temperature adhesive tape is the "behind the scenes hero" in precision manufacturing and industrial production. Choosing the right type not only ensures the smooth progress of the process, but also improves product yield and ensures operational safety. Understanding their differences is the first step towards efficient and professional production.

Tea colored polyimide high-temperature resistant tape

Tea colored polyimide high-temperature resistant tape is a special tape made of polyimide film as the substrate and coated with high-temperature resistant silicone adhesive. It is known for its excellent heat resistance, excellent electrical insulation, and "residue free" characteristics.This tape is named "Gold Finger Tape" due to its amber appearance and widespread use to protect the "Gold Fingers" on printed circuit boards (PCBs). It is an indispensable material in the field of electronic manufacturing.The following are detailed parameters, features, applications, and purchasing guidelines for this product.1. Product parametersThe standard specifications for brown polyimide tape are as follows, but many suppliers also support customization.Typical numerical values/description notes for parameter itemsThe substrate polyimide film (PI Film) determines its high heat resistance and insulation performanceSilicone PSA adhesive is heat-resistant and not easily residual after removalColor: Tea/Amber for easy identification and positioning during the homework processThe commonly used thickness is 0.05mm-0.06mm (approximately 1.97-2.36 mil), but there are also models such as 0.025mm (1 mil) and 0.075mm (3 mil)Temperature resistance range - continuous use: around 260 ° C (500 ° F)-Short term tolerance: above 300 ° C (such as 10-30 minutes). This is the core indicator and varies among different brandsStandard length of 33 meters, some brands can provide other lengthsInsulation level H, long-term working temperature can reach 180 ° C, able to withstand higher temperature impactsSome products with UL510 flame retardant certification have this safety certificationEnvironmental standards such as RoHS and Halogen Free meet the environmental requirements of modern electronic manufacturing2. Core features and advantagesExcellent high temperature resistance: This is its core characteristic, which can work continuously at high temperatures of 260 ° C and withstand temperatures of 300 ° C or even higher in a short period of time, such as reflow soldering, wave soldering and other process environments.Excellent electrical insulation: As an H-grade insulation material, it can effectively prevent circuit short circuits and leakage, ensuring the safe operation of electronic devices.Non residue adhesive characteristic: This is the key advantage that distinguishes it from ordinary high-temperature adhesive tape. After high-temperature operation, it can be cleanly peeled off without leaving any sticky residue on the surface of the protected object (such as PCB metal fingers), eliminating the need for subsequent cleaning processes.Excellent chemical resistance: able to resist corrosion from various acids, alkalis, and solvents, maintaining stable performance in harsh production environments.Good physical properties: tensile and tear resistance, with a certain degree of toughness, dimensional stability at high temperatures, and not easily deformed.3. Main applicationsElectronic manufacturing industry: This is its main application area. Used to protect the gold fingers, other sensitive contacts or areas on the PCB board during SMT surface mounting, reflow soldering, and wave soldering processes, preventing them from being contaminated by solder or damaged by high temperatures.Electrical insulation: used for interlayer insulation and external bundling fixation of electronic components such as transformers, motors, coils, capacitors, etc.Battery industry: used for insulation fixation of positive and negative electrodes of lithium batteries and wrapping of battery cells.General industry: used for shielding and protection during high-temperature spraying, baking paint, and powder coating

Acrylic foam double-sided tape

Acrylic foam double-sided tape "is a very important category of industrial tape, which combines high-performance acrylic adhesive with foam substrate to create a bonding solution with excellent comprehensive performance. It is irreplaceable by traditional liquid adhesives and ordinary tape in many fields.Below is a comprehensive analysis of its structure, characteristics, types, applications, and selection points.1、 Core Structure and Working Principle: A Exquisite 'Sandwich'Foam substrate (intermediate layer):Material: Usually polyurethane foam, polyethylene foam, or acrylic foam. Each material varies in softness, density, temperature resistance, and solvent resistance.Core functions:Buffer and shock absorption: absorb impact and vibration energy, protect adhesive components.Filling gaps: capable of filling small unevenness, gaps or tolerances between two adhesive surfaces, achieving full surface contact, which is not possible with hard tape (such as PET tape).Stress dispersion: Uniformly dispersing the adhesive force over a larger area, reducing stress concentration caused by thermal expansion, contraction, or deformation, and improving long-term reliability.Sealing: It has a certain degree of dust, moisture, and sound insulation effects.Adhesive layer (upper and lower layers):Material: High performance acrylic pressure-sensitive adhesive.Core advantages:Excellent weather resistance: resistant to ultraviolet rays, oxygen, and moisture, long-term outdoor use (such as cars, outdoor signs) will not easily yellow, powder, or lose stickiness, and the lifespan can reach several years or even more than ten years.Excellent adhesion: Strong creep resistance under sustained stress, not easy to slip or detach.Wide material adaptability: It has good initial and final adhesion to various materials such as metal, plastic, glass, sprayed surfaces, composite materials, etc.Wide temperature range: The working temperature range can usually reach -40 ℃ to 90 ℃ or even higher.Release paper/film (protective layer): High weight release paper is usually used, which is convenient for manual or die-cutting processing.2、 Main features and advantages (compared to traditional tape/glue)Excellent comprehensive performance: balancing high adhesive strength, elastic cushioning, and long-term durability.Easy and efficient construction: tear and paste immediately, no need for mixing or curing, clean and odorless, can greatly shorten assembly time and improve production efficiency.Solving complex problems: particularly adept at handling bonding scenarios with uneven surfaces, large thermal expansion differences, and vibrations.Beautiful appearance: The tape thickness is uniform, and it looks neat and tidy after installation, achieving a "seamless" installation.3、 Main types and application areasAccording to the performance focus of foam substrates and adhesives, they are mainly divided into the following categories:Universal acrylic foam tape:Features: Balancing viscosity, thickness, and cost. Foam has a medium density and good compression resilience.Application: The most common. Used for indoor and outdoor signage installation (such as acrylic letters, metal letters), decorative strip fixation, lightweight building material assembly, and household appliance bonding.VHB ® (Very High Bond) tape (a representative product of 3M, which has become synonymous with the industry):Features: Ultra high strength acrylic foam tape. Its high bonding strength can directly replace mechanical fastening methods such as rivets, screws, and spot welding in many applications, achieving "structural bonding".Applications: fixing metal panels for building curtain walls, assembling elevator cars, assembling refrigerated truck cars, bonding heavy machinery equipment panels, and installing interior parts for rail transit.Ultra thin/medium thick foam tape:Features: Thickness between 0.2mm and 1.0mm, used in situations where small gaps need to be filled and a smooth appearance is required.Application: Internal components of mobile phones/electronic products (fixing batteries, buffering FPC/PCB, filling gaps for dust prevention), film switches, medical device assembly.Flame retardant foam tape:Features: The foam substrate and adhesive have undergone special treatment and meet the UL94 V-0 flame retardant rating.Application: Places with strict fire prevention requirements, such as elevator interiors, public transportation interiors, and electrical cabinets.Thermal/conductive foam tape:Thermal conductive type: Adding thermal conductive particles to the adhesive layer or foam, used in situations that require heat dissipation and shock absorption fixation, such as the installation of certain LED modules and power devices.Conductive type: Provides electromagnetic shielding (EMI/RFI) function for grounding and shielding of electronic device enclosures.4、 How to choose and use key pointsClarify the bonding object: the most important step. Confirm that the surface energy of two materials (such as painted metal glass and plastic wall) directly affects the bonding effect.Evaluate the usage environment:Indoor or outdoor? Outdoor use must choose acrylic adhesive with excellent weather resistance.Are there any drastic temperature changes, ultraviolet radiation, humidity, or chemicals present?Is there continuous vibration or impact?Determine key performance requirements:How strong adhesive force is needed? Lightweight decoration or heavy-duty structure?How much gap do I need to fill? Select the appropriate thickness of foam based on the unevenness or tolerance of the bonding surface.Do you need any special features? Such as flame retardancy, thermal conductivity, and electrical conductivity.Surface treatment: crucial! Ensure that the adhered surface is clean, dry, free of oil, dust, and rust. The best cleaning effect is achieved using isopropanol (IPA).Construction pressure and time: After pasting, sufficient pressure (such as compacting with a roller) should be applied to ensure that the tape is in full contact with the surface. The adhesive strength will reach its maximum value over time (usually 24-72 hours).Test first: Before large-scale application, it is necessary to conduct small sample testing in real materials and environments to verify long-term reliability.5、 The core difference from PET double-sided tapeCharacteristics: Acrylic foam double-sided tape, PET double-sided tapeBase material core elastic foam (three-dimensional structure) hard polyester film (two-dimensional plane)Main functions include filling, buffering, shock absorption, and sealing, while also achieving high initial adhesion and fast bonding on a flat surface with high-strength bonding, and ensuring dimensional stabilityProficient in handling uneven surfaces, tolerances, and shock absorption scenarios, skilled in precise fitting and fixing of smooth and flat surfacesTypical thickness is relatively thick (0.2mm-3.0mm or more) and very thin (0.025mm-0.2mm)Soft to the touch, compressible and hard, incompressibleSummary: PET double-sided tape is like a "tough film", while acrylic foam tape is a "tough sponge". The former is suitable for precise and smooth "surface contact", while the latter is suitable for "body contact" in complex working conditions.summaryAcrylic foam double-sided tape is a revolutionary engineering adhesive material that solves many problems of traditional mechanical fixation and liquid adhesives in terms of shock absorption, sealing, stress management, and construction convenience through its unique "combination of rigidity and flexibility" structure. From the internal fixation of high-end smartphones to the installation of curtain walls in skyscrapers, itspresence is everywhere.

Polyimide composite tape

Polyimide composite tape. This is an indispensable "engineering grade" high-performance tape in extreme environments and high-end applications.Core concept: Why do we need 'composite'?Ordinary polyimide tape (such as commonly known as "gold finger tape" or Kapton tape) is usually a single-layer polyimide film+single-sided organic silicone. And "composite" tape is a multifunctional and integrated solution formed by combining polyimide film with other functional materials (such as foam, fiberglass cloth, thermal conductive materials, other adhesive layers, etc.) through precision coating or bonding processes.Core concept: Combining the excellent inherent properties of polyimide (high temperature resistance, high insulation, high strength) with the complementary properties of other materials (buffering, filling, thickening, thermal conductivity) to solve complex application problems that cannot be solved by a single material.Core advantages of polyimide (PI) film (composite basis)Ultimate high temperature resistance: Long term use temperature can reach over 260 ° C, short-term can withstand high temperatures above 400 ° C, and physical properties are stable at this temperature, without melting or dripping.Excellent electrical performance: high dielectric strength, top-notch insulation material, excellent corona resistance.Excellent mechanical properties: high tensile strength, good toughness, bending resistance, and excellent dimensional stability (low coefficient of thermal expansion).Chemical stability: resistant to most organic solvents, oils, and acids.Flame retardancy: typically meets UL 94 V-0 mon Composite Structures and ApplicationsThe following are several typical polyimide composite tape structures:1. PI film+foam+adhesive layerThis is one of the most common composite structures, typically consisting of three or more layers: PI film (surface material)+adhesive+foam (intermediate layer)+adhesive+release paper.Features and advantages:PI film: provides high-strength "skin", responsible for high temperature resistance, insulation, puncture resistance, and solvent resistance.Foam (commonly used silicone foam, polyimide foam, or acrylic foam): provides cushioning and shock absorption, fills gaps, absorbs stress, compensates for tolerances, and improves sealing performance.Double sided adhesive tape: achieves firm bonding.Application Scenario:New energy vehicle battery pack: The insulation, buffering, and bonding between battery cells require insulation, fire resistance, and long-term earthquake resistance.High end motors/transformers: Insulation and fixation between coil windings must withstand high temperatures and electromagnetic vibrations.Consumer electronics: providing insulation, buffering, and certain thermal conductivity gaskets for heating elements (such as CPUs) in limited spaces.Aerospace equipment: The installation of instruments and meters requires shock absorption, insulation, and resistance to extreme temperature cycles.2. PI film+reinforcement material (such as fiberglass cloth)Composite PI film with glass fiber cloth to form an ultra-high strength composite material.Features and advantages:PI film: provides insulation and temperature resistant substrate.Fiberglass cloth: greatly enhances mechanical strength, tear resistance, dimensional stability, and puncture resistance.Application Scenario:Slot insulation and phase to phase insulation for heavy-duty motors and generators.Cable bundling that requires extremely high mechanical protection and insulation.PCB board edge reinforcement.3. PI film+thermal conductive materialComposite thermal conductive silicone or thermal phase change material on PI film to make insulating thermal conductive gasket.Features and advantages:PI film: provides electrical insulation barrier, which is a critical safety requirement.Thermal conduction layer: Conducts heat from heating elements such as IGBTs and power MOSFETs to the heat sink.Application Scenario:Power electronic module: Achieve efficient heat dissipation while ensuring high voltage insulation.Insulation and heat dissipation of heating elements in high-frequency communication equipment.4. Reinforced composite of double-sided/single-sided tapeEven as a tape, its structure may be composite. For example:Back material composite: Using PI film as the substrate for double-sided tape to provide high temperature resistance.Adhesive layer composite: using a double-layer adhesive system, such as one layer of high initial adhesive and one layer of high holding adhesive, to optimize performance.The core value brought by "composite"Functional integration: A single material simultaneously solves multiple problems such as insulation, buffering, bonding, sealing, and thermal conductivity, simplifying design and assembly.Reliability improvement: Designed for specific harsh working conditions (high temperature+vibration+high voltage), the system reliability far exceeds simply stacking multiple single materials.Space optimization: Achieve more complex functions with thinner overall thickness, saving valuable equipment space.Process simplification: reduce assembly steps, lower labor costs, and improve production efficiency.How to choose polyimide composite tape? ——Key considerationsClarify the primary and secondary contradictions: What is the main threat in your application environment? Is it high temperature, high voltage insulation, mechanical vibration, or heat dissipation? This determines the focus of the composite structure.Structural decomposition: Request specific structural layer diagrams from suppliers to understand the material, thickness, and function of each layer.PI film thickness: commonly 12.5 μ m, 25 μ m, 50 μ m, etc., determine insulation and mechanical strength.The material and density of the intermediate layer, such as the foam material (silicone, PI foam) and density (kg/m ³), directly affect the buffering and sealing performance.Adhesive type: high temperature resistant organic silicone (>200 ° C) or high-performance acrylic adhesive (lower temperature resistance but stronger adhesion)?Key performance parameters:Temperature resistance level: Long term/Short term.Flame retardant rating: UL 94 rating.Dielectric strength: kV/pression deformation: For structures with foam, this is important and affects long-term sealing performance.Thermal conductivity: For thermal conductive products.Environmental tolerance: Is it necessary to be resistant to cold and hot shock, moisture and heat aging, specific chemicals, or UV?Certification and Compliance: Material certification is crucial in fields such as automotive (such as USCAR), aviation, and rail transit.Main brands and marketsInternational leaders:3M: The product system is very comprehensive, such as a series that combines PI film and foam.Rogers: Leading in technology for high-temperature foam and composite materials.Tesa, Nitto, Saint Gobain, and others all have corresponding high-performance composite product lines.Excellent domestic suppliers:With the development of new energy and high-end manufacturing, many domestic enterprises are able to produce high-quality PI composite tapes/gaskets, especially in the field of new energy vehicle battery pack applications, where the process of localization substitution is fast.summaryPolyimide composite tape is a smart crystallization of materials engineering. It is no longer a simple adhesive or insulation material, but a systematic solution designed to cope with extreme multi physics environments. When choosing, it is necessary to start from the system requirements, communicate deeply with the supplier's R&D personnel, provide specific operating parameters, and conduct strict long-term reliability testing to ensure that this high-performance material can truly realize its "1+1>2" composite value.

Ceramic backing tape fireproof self-adhesive tape

Ceramic backing tape "is a broad term that encompasses a variety of products. According to the core application scenarios, it can be mainly divided into two categories: welding special gaskets and high-temperature resistant insulation/fireproof tapes.👉 Welding Ceramic backing tapeThis is the most common term for "ceramic backing tape", mainly used for single-sided welding and double-sided forming processes.Core working principle: During welding, it is attached to the back of the weld seam to support the molten metal, prevent it from dripping, ensure that the root of the weld seam is completely melted, and achieve one-time molding and aesthetic appearance of the back. Essentially, it is a process auxiliary material for single-sided welding and double-sided forming.Main application areas: shipbuilding (hull outer panels, decks), bridge construction, boiler and pressure vessel manufacturing, steel structure construction, pipeline engineering, etc.Material composition: It is mainly composed of natural inorganic materials such as alpha alumina (α - Al ₂ O3) and kaolin, which are sintered at high temperatures of 1350-1400 ℃. Some products are pasted on aluminum foil tape for construction purposes.Performance characteristics:High temperature resistance: The fire resistance usually exceeds 1300 ℃, and some materials can withstand high temperatures above 1500 ℃.Chemical stability: resistant to acid, alkali, and chemical corrosion, will not react with the molten metal during welding, ensuring the purity of the weld seam.Good thermal stability: With a low coefficient of thermal expansion, it can effectively resist the thermal shock of rapid heating and cooling.🛡️ High temperature resistant insulation/fireproof tapeThis type of tape is not designed for welding processes, but utilizes the fire-resistant, insulating, and heat-insulating properties of ceramic materials to provide protection for equipment or places.Main types:Ceramic Fiber Tape: Woven from ceramic fiber yarn, used as insulation, sealing, and insulation material in high-temperature areas, such as pipe wrapping, furnace door sealing, etc.Ceramic Silicone Tape: Soft and elastic at room temperature, it will quickly sinter into a hard ceramic shaped protective shell when exposed to high temperatures (such as fire), providing fire and fire-resistant effects. The fire-resistant layer commonly used for fire-resistant cables.Main application areas:Sealing and insulation of high-temperature pipelines, flanges, valves, and furnace doors.Fire prevention, fire resistance, and insulation wrapping of wires and cables.Pads and isolation protection for high-temperature areas of equipment.Glass fixed sealing for fire doors.Performance characteristics:High temperature resistance: Ceramic fiber tape can withstand high temperatures of about 1260 ℃; Ceramic silicone rubber tape can form a protective shell under flames.Electrical insulation: These products, especially ceramic fibers and ceramicized silicone rubber tapes, typically have excellent electrical insulation properties.Chemical corrosion resistance: able to resist the erosion of most chemicals and solventsHow to choose and use?Clarify core requirements: First, determine whether you want to solve welding process problems or require high-temperature sealing or fire prevention.Precise product selection: Choose corresponding products according to different needs.Verify key parameters: Carefully verify the product's temperature resistance level, size specifications, and certification (such as CCS/ABS certification from classification societies).Pay attention to construction details:For adhesive welding pads, ensure a tight fit and avoid air bubbles.Ceramic fiber products can usually be cut with ordinary scissors. Some products should be noted that slight smoking or blackening may occur during the first high-temperature heating, which is a normal phenomenon.For pressure-sensitive ceramic tape, additional mechanical fastening may be required when the application temperature exceeds approximately 204 ° C (400 ° F)

Transformer wrapped with glass cloth tape

Let's conduct a comprehensive and in-depth technical analysis on the topic of "transformer wrapped with glass cloth tape". This is a crucial insulating and structural material in the manufacturing of transformers, especially those used in medium and high frequency, high voltage, or special environments.The core definition of glass cloth tape for transformer wrapping is a strip-shaped composite material made from an alkali-free glass fiber cloth substrate, coated or impregnated with high-temperature resistant resin adhesive (such as acrylic, silicone, epoxy resin, etc.). It is not an ordinary tape, but a high-performance industrial insulation and structural fixing material.Main functions and features: Excellent electrical insulation: Glass cloth itself is an excellent insulator, which can effectively isolate the winding layers and turns, preventing high-voltage breakdown.Excellent high temperature resistance: This is its core value. Depending on the adhesive, it can withstand temperatures ranging from 130°C (Class B) to 200°C+ (Class H and above) for extended periods, meeting the requirements of transformers with different insulation levels.High mechanical strength and dimensional stability: Glass fiber cloth provides extremely high tensile strength and tear resistance. Under the effects of high temperatures and electromagnetic forces during transformer operation, it is not prone to deformation, shrinkage, or fracture, and can firmly secure the windings.Excellent impregnation property: The tape is typically designed with a porous or "open fiber" structure, facilitating the smooth penetration and filling of insulating varnish into all voids during the vacuum pressure impregnation (VPI) process of transformers, thereby forming a dense and robust overall insulation structure.Flame retardant and fire-resistant: Glass fiber, as an inorganic material, does not burn and can effectively prevent the spread of fire, enhancing the safety of transformers.Chemical resistance: It has good resistance to most solvents, oils (such as transformer oil), acids, and alkalis.The performance of tapes with key structures and material types is determined jointly by glass cloth and adhesive.1. Material of glass cloth substrate: E-glass, which has the best electrical insulation properties.Weave: Predominantly plain weave, with a stable structure.Handling:Open fiber cloth: After special treatment, the fiber bundles are spread out and flattened, resulting in a thinner, softer tape with better conformability and excellent impregnation permeability. It is the preferred choice for modern high-performance transformers.Plain fabric: undrawn, relatively thicker and stiffer.Thickness and weight: There are various specifications (such as 0.08mm, 0.10mm, 0.13mm) to meet different insulation thickness and mechanical strength requirements.2. Adhesive type (determining temperature resistance level and characteristics) Acrylic adhesive:Temperature resistance: Class B (130°C) to Class F (155°C) are common.Features: Strong adhesive strength, good initial adhesion, moderate price, and widest versatility.Silicone:Temperature resistance: Class H (180°C) to Class C (200°C+).Characteristics: High temperature resistance and elasticity, aging resistance, but relatively weak adhesive strength, and high price. Used in high temperature environments (such as electric vehicles, rail transit, and special power supplies).Epoxy resin adhesive (Epoxy):Temperature resistance: Class F (155°C) to Class H (180°C).Characteristics: After curing, it exhibits extremely high strength and good compatibility with impregnating varnish, making it commonly used in VPI processes that require final curing.Solvent-free adhesive: environmentally friendly, with low volatile organic compound (VOC) content.The core application in transformer manufacturing is interlayer and intersegment insulation: when winding coils, it is wrapped between different winding layers or segments, serving as the main insulation.Outer protection and bundling:Outermost wrapping: Securely tie the entire winding to prevent loosening and provide the final insulating protective layer.Lead wire fixation: Used for fixing and insulating transformer lead wires.End space filling and reinforcement: At both ends of the winding, it is used to fill the voids, reinforce the end coils, and prevent them from loosening due to electromagnetic forces.Insulation between the core and the frame: It is sometimes used to wrap the edges and corners of the core or as additional insulation for the frame.Select insulation grade that matches the usage points: Choose the tape with the corresponding temperature resistance based on the insulation grade (B, F, H, C, etc.) of the transformer patibility test: The adhesive tape must be fully compatible with the subsequently used impregnating varnish (varnish). It is necessary to test whether the varnish will degrade, blister, or reduce performance after being applied.Process requirements:Tensile rate and tension control: A constant and appropriate tension (controlled by a tension controller) needs to be applied during winding. If it is too loose, the binding will not be tight; if it is too tight, the tape may break or the coil may be damaged.Lapping ratio: Typically, a 1/2 or 1/3 bandwidth overlap is required to ensure full coverage without gaps.Softness and conformability: For coils with complex shapes, open fiber cloth tape is easier to handle.Thickness and width: Selected based on insulation distance and operational convenience.Certifications and Standards: Check whether the product has passed certifications such as UL, CSA, RoHS, and whether it complies with relevant industry standards such as IEC, NEMA, etc.Brief description of operation process: Preparation: Ensure that the coil surface is clean, dry, and free of burrs.Start: Fix the tape head on the winding at a certain angle and press it down.Winding: Start the winding machine or manually wind in a spiral manner with constant tension and a predetermined overlap ratio. Ensure the tape is kept flat and free of wrinkles.Ending: Wrap 1-2 extra turns at the end and press them down firmly. A small amount of glue or natural stickiness can be used to seal the end.Post-processing: After winding, the subsequent processes such as baking, vacuum impregnation, and curing are carried out.Well-known international brands: 3M (such as 3M™ 69 series), Von Roll, Isovolta, Nitto (Nitto).Domestic: Domestic enterprises such as Siwei Group, Dongcai Technology, and Chuangyuan New Materials also have mature product lines.The glass cloth tape used for transformer wrapping serves as the "skeleton" and "armor" of transformers, particularly high-frequency transformers, inductors, motors, transformers, and other electromagnetic components. It is not merely a simple binding, but also a crucial component of the insulation system, directly impacting the electrical safety, long-term reliability, heat dissipation, and mechanical strength of the product. Proper selection and application are the cornerstones for manufacturing high-quality and high-stability transformers.

Market share of Ruili adhesive tape

1. Market positioning and qualitative analysis of market shareIn the Chinese adhesive tape market, particularly in the industrial tape segment, Ruili can be categorized as either a "mainstream domestic brand" or a "leading brand in the second tier"Tier 1 (International giants): 3M (US), tesa (Germany), Nitto (Japan), Sekisui (Japan), etc. They dominate the high-end market and lead in technology, brand, and profit share.The second tier (leading domestic brands): includes a group of strong local enterprises such as Ruili, Yongda, Jinghua, Fenghua, and Huaxia. Ruili is one of the representative brands with high popularity and a relatively complete product line.Third tier: numerous regional small and medium-sized factories, focusing on the low-end market and price competition.Conclusion: In the entire Chinese adhesive tape market, Ruili may rank among the top in terms of sales volume share, but there is still a gap between its sales revenue and profit share and that of the first-tier international brands. In niche markets such as high-temperature resistant tape and industrial insulation tape, its sales volume share is likely to be considerable.2. Key factors affecting its market shareAdvantages (helpful for increasing market share):High cost-effectiveness: This is its core competitiveness, meeting the needs of the vast majority of cost-sensitive industrial customers.Channel expansion and broad coverage: Through a vast network of distributors and e-commerce platforms, it can penetrate into various levels of markets, from factories to hardware plete product line: Able to provide a "one-stop" procurement solution, increasing customer loyalty.Local services provide quick response: they are more flexible than international brands in terms of customized needs, delivery schedules, and after-sales services.Weaknesses (limiting its expansion into high-end markets):Low brand premium: In high-end and high-reliability application fields, customers still tend to choose international brands.R&D and material science accumulation: There is a gap between China and international giants in terms of self-research capabilities in top-notch adhesive formulations and high-end substrates (such as specialty films and foam).Standards and certification: Although the basic certifications are complete, the certification in some of the most stringent industry standards (such as automotive, aerospace, and long-term medical equipment) may not be as comprehensive as that of leading brands.

What kind of tape is resistant to high temperatures and leaves no residue

How do you choose the right high-temperature resistant tape for your industry?

When choosing a high-temperature resistant tape for your industry, you'll want to consider the following key factors to ensure that the tape you choose will meet industry-specific needs: Temperature tolerance: Determine the required temperature tolerances according to the industry application environment. Use temperature ranges vary widely from industry to industry, so when choosing a high-temperature tape, the first step is to determine the maximum temperature that the tape can withstand. Generally speaking, the temperature range that high-temperature tape can withstand is between-40 °C and 1000 °C, but the specific range depends on the type and brand of tape. Material properties: Select tapes with specific material characteristics according to industry requirements. For example, some industries may require tape to have good chemical or corrosion resistance. Common high temperature resistant tape materials include polyimide, silica gel, glass fiber and fluoroplastics, each of which has different characteristics, such as heat resistance, insulation, corrosion resistance and so on. Viscosity: Make sure the selected tape adheres firmly to the desired surface and remains stable in high-temperature environments. Choose tapes with strong stickiness and high temperature tolerance to ensure they don't lose their stickiness at high temperatures. Dimensions: Choose the appropriate width and length of the tape according to the specific application requirements. Different industries and applications may require different sizes of tapes, so you need to choose according to the actual situation. Additional function: Choose the appropriate width and length of the tape according to the specific application requirements. Different industries and applications may require different sizes of tapes, so you need to choose according to the actual situation. In conclusion, choosing a high-temperature resistant tape that is suitable for your industry requires consideration of multiple factors, such as temperature tolerance, material characteristics, stickiness, size, and additional characteristics. By taking these factors into account comprehensively, the most suitable high temperature resistant tape can be selected to meet the needs of the industry.

Question and answer

PET green film high-temperature tape

Die-cutting and processing of double-sided adhesive tape

Polyimide composite tape

High-quality PET substrate double-sided tape

Blue PET high-temperature adhesive tape

Green high-temperature PET tape

High-temperature residue-free masking tape

Teflon glass cloth tape

Transformer wrapped with glass cloth tape

High temperature resistant PI tape

Polyimide series

Glass cloth tape (Teflon)

PET high-temperature tape (protective film)

Plasma thermal spraying tape

Fire-resistant ceramicized silicone tape

Domestic products replace imported adhesive tapes