Method for preventing deformation of PTFE sheet

    A device for preventing deformation of a PTFE sheet, a PTFE sheet is inserted in the peripheral pipe, and a gap is left between the outer wall of the PTFE tube and the inner wall of the peripheral pipe, and the PTFE sheet is installed on the The peripheral tube, the PTFE tube and the flange in the hot melt device are tightly inserted into the inner wall of the end of the PTFE tube, and the inner wall of the end of the peripheral tube is tightly sheathed on the outer wall of the end of the PTFE tube. A high-pressure injection head, the new adopting flange adopts a traditional gasket to prevent deformation of the PTFE 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 PTFE 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.

Three forms of PTFE sheets

1. The PTFE sheet is made of PTFE resin, which is pressed and sintered by a mold. It has excellent corrosion resistance, good self-lubricity and non-blocking properties, so it is almost resistant to all chemical media and wear resistant. , pressure resistance, low friction coefficient and other characteristics.

2. PTFE sheet is a flat gasket, V-shaped gasket, piston ring, ball valve gasket, etc. which are mechanically turned or cut through Teflon rods, tubes and plates. It has corrosion resistance, anti-aging and no Good properties such as electrical conductivity. The pH of PTFE is 0-14 (except for molten alkali metal and fluorine at high temperature and high pressure). It has good mechanical strength between -100 ° C and 100 ° C. The pressure is 10Mpa.

3. The PTFE sheet is a combination of a soft gasket such as an asbestos rubber sheet or a non-asbestos sheet and a PTFE-coated sheet, V-type (cutting type) PTFE sandwich gasket is mechanically turned by high quality PTFE sheet, U-shaped (folding type) PTFE sandwich gasket is made of PTFE tape wrapped and then bonded. It has excellent corrosion resistance and good compression resilience. It is widely used in the sealing of various strong acids, strong alkalis, strong oxidation and non-contaminating media. Usually suitable for medium and low pressure parts.