What is heat shrink tubing and why is it called cable line patch  

What is heat shrink pipe?

To understand what a thermal estate is, you just need to look at its name. Simply put, it is a plastic sleeve that can shrink when exposed to heat, which is why it is also called heat shrink, heat shrink, or heat shrink. In fact, they are essentially the same product, collectively called heat shrink tubing. Due to its heat-shrinking property, it is an indispensable and important protective pipe in various industries. The internal diameter specifications are quite comprehensive and range from the smallest diameter of 0.5mm to the largest diameter of 250mm. Colors can also be diversified, with all common ones including red, orange, yellow, green, blue, indigo and violet available. The target audience is also very wide. Heat shrinks are usually made of soft materials, and the heat shrink rate can reach 2 times. This means that the diameter of 6mm heat shrink tube can be reduced to 3mm after heating and shrinking.

Heat shrink tubing was recognized by many developed countries in the 60s, mainly due to the rapid development of the automobile and home appliance industries. In the 1970s, heat cleaning pipes developed rapidly, and heat cleaning materials became industrialized. Domestic research and development of heat shrinkable pipes also started very early. After nearly half a century of rapid development, the quality of heat shrink pipes has improved significantly. Therefore, heat shrink pipe is now also jokingly called special patch for industrial, electrical, mechanical, high-speed railway and automobile cable lines. Why can heat shrink pipe be called cable line patch? The main reasons for this are the following:

一、Connection to cable

Heat shrink tubing can be used to connect wires at welding points. When wires are welded to each other, exposed weld spots are exposed to air, creating safety and quality risks. To improve the tensile strength at connection points and provide better protection for wires, heat shrink tubing can be used at welding points to improve tensile strength and safety, which also indirectly improves quality assurance and avoids safety risks.

二、insulation protection

Terminal blocks are very common in electrical equipment. After the wire is welded to the terminal block, most of the conductor is exposed to the outside, but in reality, only the circle of conductor that is lifted by the screw is exposed. When using the injection molding process, the cost is very high. Because heat shrink pipe has excellent insulation efficiency, at this time we can solve this problem very well by using heat shrink pipe.

三、protection function

The physical properties of heat shrink are extremely excellent, featuring electrical insulation and aging resistance. It can be widely used in protecting cable insulation in various industries, protecting the insulation at connection ends and cable connection points, and relieving stress, providing very good protection.