Through the emergence and development history of heat shrinkable tubes, we know that heat shrinkable tubes were invented in the 1950s. What is the development history of domestic heat shrinkable tubes?

At the end of the 1950s, China's first polymer radiation chemistry laboratory was established in Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, to carry out basic research. In the 1960s, the research on heat shrinkable materials and radiation crosslinking of electric wires was started and successfully applied to the "Dongfanghong" satellite. In order to develop the radiation processing industry, the first radiation pilot test base in China (the predecessor of Jilin radiation chemical industry Co., Ltd. today) was prepared and established, laying the foundation for the research and production of heat shrinkable materials in China.

In the early 1970s, Changchun Institute of Applied Chemistry actively undertook the anti-corrosion work of national "August 3rd" project oil pipeline, carried out the research of radiation crosslinked polyethylene sheet, tape and film, and applied it to the anti-corrosion engineering of oil pipeline.

In the early 1980s, led by the Application Research Institute, Jilin radiation and Chemical Institute and Wuhan high voltage Institute of the Ministry of water and electricity, entrusted and supported by the State Science and Technology Commission and the Ministry of water and electricity, the company completed the development of heat shrinkable accessories for power cables and rapidly promoted their use, breaking the situation that Raychem's products dominate the world and promoting the formation and development of this high-tech industry in China.

Development of heat shrinkable tube technology in China

In the mid-1980s, Changchun Yinghua Institute established a factory for production. In 1994, Changchun heat shrinkable materials Co., Ltd. (CIAC) was established, laying a foundation for industrialization and scale.

Since 1987, the production quantity and variety of domestic heat shrinkable products have developed rapidly. The main reason is that the high added value of heat shrinkable materials stimulates manufacturers; The demand for civil and public utilities construction fully shows that the potential market for new materials is large; The involvement of Raychem company in the United States has affected the major domestic manufacturers, forcing large manufacturers to join together and small factories to crowd up, forming a situation of "heat shrinkage heat" in China. Due to the development history, the domestic heat shrinkable materials are mainly limited to the two series of communication cable accessories and power cable accessories, which basically form a pattern of two blocks: one is the communication product manufacturer cluster represented by Sichuan Shuangliu, and the other is the power cable accessory manufacturer cluster represented by Changchun CIAC. According to incomplete statistics, there are more than 300 large and small enterprises in China.