PTFE Gaskets Technical Key

PTFE Gaskets Because of the high melt viscosity of PTFE, it is 1010 in 350 Shan, non-molten material and can not adopt general thermoplastic molding process. After a long period of technical research, we mastered the processing technology of PTFE expansion board, PTFE Gaskets including home-made processing equipment and operating parameters, and the development of extended products, as well as extended product manufacturing technology. It is better to master the integrated technology of push-pressure and roll-pressing and stretching, and to control and improve the technical performance of products with certain operating factors such as pressure ratio, PTFE Gaskets speed ratio and temperature.

PTFE is a large molecule of long chain structure. Under certain conditions, macromolecular chains can easily be arranged in a particular direction (axial) as an orientation. PTFE Gaskets In order to increase the strength of the expanded plate, the molecular chain or chain segment orientation is increased and the molecular conformation number is reduced. The irregular chain of molecules is changed into a neat arrangement and stretched state, in the molding process must form a multi-channel axial tensile, and the pressure, roll pressure, cooling, PTFE Gaskets raw material purification and additives (pore-forming agent) integrated composition of the operation technology.

In the process, the pore agent (oil agent) recovery device is set up, and the condensation method is used for recovery. In addition to the process of attention to improve the product pass rate, and to the side of PTFE plate processing.

3 people-oriented, attention to environmental protection and work hygiene

Set up the ventilation device, to ensure that the pollutant concentrations in exhaust gases meet the national emission standards and achieve environmental friendliness; PTFE Gaskets the concentration of pollutant in the workshop reaches the hygienic standard of national industrial design, and the process layout and equipment operation conform to the requirements of the principle of human-machine engineering.

Main process parameters

Raw material Treatment: remove impurities from PTFE resin raw material, mash pellets and sift fine particles. Add a certain amount of volatile oil, mix and shape after the temperature preservation for a period of time.

PTFE Gasket Not only has the function of sealing, PTFE Gaskets but also has the function of protecting the gasket equipment (such as flange), which is the essential part of processing equipment. The performance of PTFE gasket is shown in table 2. After several years of research and development and small-scale production, now has the size of mass production. Product delivery Machinery Industry General machinery product testing, the performance indicators are shown in table 2 and table 3. The main performance index surpasses our country machinery profession standard "The PTFE gasket Technical Condition" (Jb T10688) The target, PTFE Gaskets achieves the international similar product the advanced level.

1 The manufacturing process of PTFE expansion board is very complicated, and high performance products must be supported by high level equipment and process.

2 Purification of PTFE resin, PTFE Gaskets good performance additives (pore-forming agent), push pressure (roll pressure), stretching and sintering is the process should be mastered.

3 the manufacture of High-performance PTFE expansion tablets and deep-processing products, must be integrated application of polymer materials science, mechanical, engineering thermal physics, mechanics, electrical and other theories, and through repeated experiments, adjust equipment, optimize operating parameters to achieve.