At present, Chinese construction machinery industry has introduced a large number of main engine design and manufacturing technology from developed countries. And gradually adopted the international advanced sealing system design concept and sealing device application technology.
In the past 20 years, through the joint efforts of domestic scientific and technical personnel, a complete national standard system of all kinds of sealing installation cavity has been established in line with ISO/TC131 / SC7. At the same time, the national standard system of sealing parts such as size series of sealing parts, performance index of sealing parts, appearance quality of sealing parts, packing, storage and transportation of sealing parts has been established in line with international standards of all kinds of sealing parts. Thus, it is convenient for the design and selection of seals used in the sealing system of construction machinery and other medium and high pressure hydraulic machinery products.
Production equipment and testing technology of sealing enterprises are developing towards automation, low cost and high reliability. From the industrial chain, the upstream industry of various sealing parts industry is mainly steel, plastic, rubber and other materials. The downstream applications are mainly petroleum, chemical engineering, construction machinery and so on.
Rubber and plastic seals commonly used nitrile, hydrogenated nitrile, fluorine rubber, acrylic rubber, polytetrafluoroethylene and other special rubber materials formula and processing technology research, improve the material applicable performance and utilization rate is still the focus of work. The application of nanomaterials will improve the mechanical properties and special functions of rubber and plastic materials.
In a word, with the rapid development of China's machinery industry, especially the development of automobile industry and electronic communication industry, China's rubber and plastic seal industry has irreplaceable practical significance and profound connotation of industry development.
Post time: Feb-07-2022