New type rubber seal for sealing plate heat exchanger
Rubber seal is an important element of the mechanical product, its high manufacturing precision, with the rapid growth of China's equipment manufacturing plate heat exchanger and other industrial products, sealing products both in structure and material needs high precision technology and equipment support.
Domestic and foreign enterprises to introduce new materials:
1, fluorine plastic coated rubber products
Fluorinated acrylic and perfluorinated compounds, such as fluorine plastic varieties, covered with rubber O ring and rubber gasket, rubber products to improve the performance of medium.
2, perfluorinated rubber
High temperature resistance (250 DEG C to 320 C), gas resistance and strong chemical corrosion, good elasticity, low compression deformation, good elasticity and so on. In chemical, food, printing, semiconductor and other industries.
3, unique polyurethane material
Good lubricity, ultra low temperature performance of 20K (-253 C) application of ultra-low temperature conditions.
4, PTFE composite and modification
In order to overcome the disadvantages such as cold flow, poor thermal conductivity, reduce wear, materials used as matrix and carbon fiber, polyimide, polyether ether ketone, polyphenylene sulfide composite materials, the development of non oil lubricating seals (piston ring and guide ring, packing ring), in the high voltage oil free compressor is widely used. Extensive research and development of the seal seal, used in a number of well-known domestic compressor.
The application of expanded polytetrafluoroethylene, PTFE by stretching, expanded after the formation of robust and multi pass, advanced fibrosis, new materials, not only keeps the PTFE itself unique chemical stability, low friction coefficient, wide operating temperature, and micro fibrosis and its internal structure to make the products more tenacious of the imagination.
In the new international environment, global rubber seal products manufacturing base will continue to transfer to china. China's rubber seal industry will usher in a period of development, but also for the development of China's new industrialization to make greater contributions.