Introduction of Silicon Rubber cold Shrinkable Sleeve

A cold-shrinkable tube generally refers to tubular cable accessories using cold-shrinking technology, which has the functions of insulation, sealing, and protection. At present, cold shrinkable tubing is divided into Silicon Rubber cold Shrinkable Sleeve and EPDM cold shrinkable tubing according to the main raw materials for manufacturing. They are made of silicone rubber and EPDM respectively. Next, let's take a look at the introduction of Silicon Rubber cold Shrinkable Sleeve. Here are some answers.

Here is the content list:

•  What is the shrinkage principle of Silicon Rubber cold Shrinkable Sleeve?

•  Product characteristics of Silicon Rubber cold Shrinkable Sleeve.

•  Advantages of Silicon Rubber cold Shrinkable Sleeve.

•  Silicon Rubber cold Shrinkable Sleeve is compared with heat-shrinkable material.

What is the shrinkage principle of Silicon Rubber cold Shrinkable Sleeve?

After the raw silicone rubber is mixed and vulcanized, the macromolecular structure of the original silica gel will undergo a cross-linking reaction to form a network structure, thereby increasing the strength and elasticity of the connection between the silica gel molecules. The elasticity is through the transformation of the intermolecular configuration. And the length of the molecular bond is changed. The unvulcanized raw rubber is easy to tear, and it can be torn gently by hand, just like tearing the dough, but after vulcanization, the silicone rubber becomes elastic, like rubber. That is to say, after the vulcanization process, the silicone tube we extruded can be deformed under the action of external force. At the same time, because the molecules are still in an activated state at room temperature, after the external force is removed, the elastic force between the molecules, that is, the intermolecular A certain degree of shrinkage occurs due to internal stress caused by deformation, that is, resilience. This is the shrinkage principle of Silicon Rubber cold Shrinkable Sleeve. It should be noted that this principle is a bit like a heat-shrinkable tube, but the difference between Silicon Rubber cold Shrinkable Sleeve and a heat-shrinkable tube is mainly that the heat-shrinkable tube molecules are frozen at room temperature and require high-temperature activation, so heating is required, so it is called heat shrinkable. Silicon Rubber cold Shrinkable Sleeve does not require heating, so it is called cold shrinkage in the industry, which is a later product that is different from heat shrinkage. In actual manufacturing, after the silicone tube is expanded, it is made into a Silicon Rubber cold Shrinkable Sleeve by adding a support tube that can be easily extracted. It is a pre-expansion process. The support strip can be removed during installation, which is very convenient and easy to use.

Product characteristics of Silicon Rubber cold Shrinkable Sleeve.

First, Silicon Rubber cold Shrinkable Sleeve is easy to install, requiring an only manual operation, no heating or special tools, and no hot melt glue or tape to strengthen the seal at the joint. Second, Silicon Rubber cold Shrinkable Sleeve is suitable for the connection and sealing of a wide range of cables with different specifications and can be used for indoor, outdoor, overhead, water or buried power, communication, and other cables. Third, Silicon Rubber cold Shrinkable Sleeve has strong resilience, large radial retraction force, and small permanent deformation. Even if it is used for a long time, it still maintains permanent radial pressure on the cable, is tightly sealed and has excellent moisture-proof, waterproof and dust-proof performance. Fourth, Silicon Rubber cold Shrinkable Sleeve is resistant to salt spray corrosion, acid and alkali, ozone aging, weather aging, and ultraviolet aging. Fifth, Silicon Rubber cold Shrinkable Sleeve has high mechanical strength, good flexibility, and has excellent physical and mechanical properties such as puncture resistance, abrasion resistance, flexion resistance, and fatigue resistance.

Advantages of Silicon Rubber cold Shrinkable Sleeve.

Silicon Rubber cold Shrinkable Sleeve has high strength, puncture resistance, and abrasion resistance; excellent oil resistance; excellent resistance to chemical solvents, acids, and alkalis; excellent resistance to water vapor and superheated water, and low water absorption. In addition, Silicon Rubber cold Shrinkable Sleeve has excellent elasticity, which guarantees a high expansion ratio, which can reach 4 times or more. The expansion ratio of silicone rubber is generally 2-3 times. The larger the expansion ratio, the greater the radial contraction force. Larger, better sealing, waterproof and moisture-proof performance.

Silicon Rubber cold Shrinkable Sleeve is compared with heat-shrinkable material.

First, Silicon Rubber cold Shrinkable Sleeve is easy to install and does not require special training and professional tools. Second, the Silicon Rubber cold Shrinkable Sleeve does not need to be heated by an open flame during the construction, and the support tube can be directly drawn out to tightly wrap the cable and connector. Third, Silicon Rubber cold Shrinkable Sleeve has excellent aging performance. Long-term use will not be hard, not brittle, weather-resistant, UV-resistant, and ozone-resistant. Fourth, Silicon Rubber cold Shrinkable Sleeve has excellent high and low-temperature resistance. The operating temperature can reach -55℃ to +150℃. Fifth, Silicon Rubber cold Shrinkable Sleeve has good resilience, "elastic memory" and small permanent deformation. It can also be tightly sealed in the case of thermal expansion and contraction and is dust-proof, waterproof, and moisture-proof. Silicon Rubber cold Shrinkable Sleevecan be used for a long time in harsher environments such as strong wind, sand, underwater, humidity, salt spray, seawater, underground, high-temperature exposure, acid rain, etc. Sixth, Silicon Rubber cold Shrinkable Sleeve has better flexibility and excellent flex resistance. It can still have very good sealing performance under a long-term swing dynamic environment.

If you are engaged in work related to Silicon Rubber cold Shrinkable Sleeve or want to learn more about our company, you can communicate with us on the website. Our official website is https://www.haivofusecutout.com/. Our products are well received by everyone because of their high-cost performance. Our company has always made unremitting efforts to become a professional supplier of Silicon Rubber cold Shrinkable Sleeve in the industry.