PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Treatment of thermal deformability of polytetrafluoroethylene sheets
Classification:
Industry dynamics
Author:
PFA tube little sister
Source:
Dankai
Release time:
2022-12-09
Visits:
The chemical production plant is carried out under the premise of certain temperature and pressure, and the process requirements are strict. The raw materials involved are various gases, liquids and solids, and the physical properties are very different, and various types are required.
Type of production equipment. However, these equipment in contact with the medium are eroded at all times in production, which seriously restricts the development of chemical industry and other industries.
In the case of underdeveloped technology, people are always looking for anti-corrosion agents in metals. However, these devices are often expensive and do not solve a large number of erosion problems. After that, people
Begin to test the replacement of metals with non-metallic resources. Plastics are first applied in our country is polytetrafluoroethylene.
With the improvement of science and technology, the development of traditional corrosion-resistant non-metallic material products anti-erosion equipment is becoming more and more perfect, and new corrosion-resistant non-metallic material products are constantly emerging. In the adoption of new technologies, new materials
In the wave of developing new anti-erosion products, the polytetrafluoroethylene anti-erosion product Guilin has developed rapidly.
Figure 1: PTFE sheet Source: Dankai
Polytetrafluoroethylene has a high degree of chemical non-chaos, it can withstand almost all commonly used strong erosion, hydrogen oxidizing chemicals, but also has the characteristics of high temperature resistance, so it is a
An ideal anti-erosion material. Through the study of processing and molding process, the application of PTFE anti-erosion products in the industry is becoming more and more extensive.
The PTFE board made of PTFE will also experience thermal deformation when encountering high temperature. Then let's look at how to prevent the PTFE board from heating and changing.
shape.
The device to prevent the deformation of the PTFE plate, the PTFE plate is inserted within the peripheral tube, and the outer wall of the PTFE tube and the inner wall of the peripheral tube leave a gap, poly.
The tetrafluoroethylene plate includes a peripheral tube, a PTFE tube and a flange installed in the hot melt device. The flange is tightly inserted into the inner wall of the end of the PTFE tube, and the inner wall of the end of the peripheral tube
It is tightly sleeved on the outer wall of the end of the PTFE tube.
A high-pressure injection head, which uses a new type of flange to undertake the traditional gasket, effectively prevents the deformation of the PTFE tube and may prevent the leakage of hot melt liquid and the blockage of the channel.
Plug. By the low pressure injection head and the inner wall of the flange, the inner wall of the PTFE tube composed of communication channel. Splice to the end of the focus tube, and the flange connects the high-pressure injection head to the outside.
The distance of the surrounding tube; and improve the installation mechanism of the PTFE tube, the peripheral tube and the low-pressure injection head.
This article is originally created by Teflon's little sister. Welcome to pay attention and take you to grow knowledge together!
Key words:
PTFE, flange, periphery, inner wall, equipment, injection, end, material, high temperature resistance, corrosion resistance
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