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Unveiling the Functions of Three Mainstream Heat Shrink Tubes

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    Although heat shrinkable tubes are not directly involved in the composition of electronic circuits, they play a role in protecting important components and circuits. But in fact, the role of heat shrinkable tubes goes far beyond simply protecting circuits. In addition, heat shrinkable tubes also play a very important role in other fields. This article will introduce you to some other uses of heat shrink tubing besides protecting circuits.

PVC heat shrink tube

    The types of heat shrink tubing can be classified in great detail according to different materials, specifications, thicknesses, and uses. PVC heat shrinkable tube has the special function of shrinking when exposed to heat. It can shrink when heated above 98°C and is easy to use. The products are divided into two series according to the temperature resistance: 85℃ and 105℃, with specifications Φ2-Φ200. The products comply with the EU RoHS environmental protection directive. Used for electrolytic capacitors and inductors. The products have good high temperature resistance, no secondary shrinkage, and can be printed on behalf of others. It can also be used for marking and insulating outer coating of low-voltage indoor busbar copper bars, joints, and wire harnesses. High efficiency, low equipment investment and low overall cost. It is also used for wrapping lighting, LED pins, and wrapping guitars and packaging bottle mouths. It is a new generation of packaging material. Whether it is for civilian, automotive or military use, it is the best choice.

PET heat shrink tube

    PET heat shrinkable tubes are characterized by being biodegradable and used in products with environmental protection requirements. PET heat shrinkable tubes (polyester heat shrinkable tubes) greatly exceed PVC heat shrinkable tubes in terms of heat resistance, electrical insulation properties, and mechanical properties. More importantly, PET heat shrinkable tubes are non-toxic, easy to recycle, and are It will not have toxic effects on the human body and the environment, and is more in line with environmental protection requirements.

    The environmental performance of PET heat shrink tubing is higher than the EU RoHs directive standard and can reach Sony SS-00259 environmental protection standard. It does not contain cadmium, lead, mercury, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, polychlorinated biphenyls, polychlorinated terphenyls, polychlorinated naphthalenes and other level 1 environmental management banned substances. It is an ideal choice for electrolytic capacitors, inductors and other electronic components, high-end The outer covering of rechargeable batteries, toys and medical equipment can fully meet the export requirements.

Glue-containing heat shrink tubing

    The outer layer of the adhesive double-wall heat shrinkable sleeve is made of high-quality polyolefin alloy and the inner layer is made of hot melt adhesive. After the product is formed, it is cross-linked by electron accelerator irradiation and continuously expanded. The outer layer has the advantages of softness, low-temperature shrinkage, insulation, anti-corrosion, and wear resistance, while the inner layer has the advantages of low melting point, good adhesion, waterproof sealing, and mechanical strain buffering properties. It is widely used in the waterproofing and air leakage prevention of electronic equipment wiring, the sealing and waterproofing of multi-strand wire harnesses (such as home wiring harnesses, automobile wiring harnesses, etc.), the sealing and waterproofing of wire and cable branches, the anti-corrosion protection of metal pipelines, the repair of wires and cables, water pumps and The wiring of submersible pump is waterproof and other occasions. PE heat shrinkable tubes are divided into several types according to voltage levels. They are used on motor lead wires and inductors. High-voltage ones are used on wire insulation, busbar wrapping, etc.

   The above three are the three most common types of heat shrink tubes in circuit design, and they are also the three mainstream types of heat shrink tubes currently on the market. Through the introduction of this article, I believe everyone has a more detailed understanding of the functions of these three heat shrink tubes. From this we can learn that heat shrink tubes can not only be used in power supply design, but can also play a huge role in other fields.