Method for treating hot deformability of PTFE sheets

- Oct 04, 2019-

The chemical production plant is carried out under the premise of certain temperature and pressure. The process requirements are strict. The raw materials involved are various gases, liquids and solids, and the physical properties vary widely. Various types of production equipment are required. However, these devices in contact with the medium are eroded all the time in production, which severely restricts the development of the chemical industry.

In the case of underdeveloped technology, people are always looking for antiseptics in metals. However, these devices tend to have high body weight and cannot solve a large number of erosion problems. Later, people began to test the replacement of metals with non-metallic resources. The first application of plastics in China is polytetrafluoroethylene.

With the advancement of technology, the development of anti-erosion equipment made of traditional corrosion-resistant non-metallic materials has become increasingly perfect, and new types of corrosion-resistant non-metallic materials have emerged. In the wave of developing new products with anti-corrosion using new technologies and new materials, PTFE anti-corrosion products have developed rapidly in Guilin.

The PTFE plate is highly chemically inert. It is resistant to almost all commonly used highly corrosive, oxidizing chemicals and has high temperature resistance, so it is an ideal anti-corrosion material. Through the research of processing and forming technology, the application of PTFE anti-erosion products in the industry has become more and more extensive.

The PTFE plate made of Teflon will also undergo thermal deformation when it encounters high temperature. Then let us look at how to prevent the Teflon plate from heating and deforming.

The device for preventing deformation of the PTFE plate, the PTFE plate is inserted in the peripheral tube, and a gap is left between the outer wall of the Teflon tube and the inner wall of the peripheral tube, and the Teflon plate is installed in the hot melt device. The peripheral tube, the Teflon tube and the flange are tightly inserted into the inner wall of the end of the Teflon tube, and the inner wall of the end of the peripheral tube is tightly sheathed on the outer wall of the end of the Teflon tube. A high-pressure injection head, the new adopting flange adopts a traditional gasket to prevent deformation of the Teflon tube, and may prevent leakage of the hot melt liquid and blockage of the passage. There is a channel connecting the low pressure needle to the inner wall of the flange and the inner wall of the Teflon tube. Stitching at the end of the focus tube, and the flange separates the high pressure injection head from the peripheral tube; and improves the installation mechanism of the Teflon tube, the peripheral tube and the low pressure injection head.