PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Teflon spiral protective sleeve
Classification:
Industry dynamics
Author:
PFA tube little sister
Source:
PFA tube little sister
Release time:
2007-05-21
Visits:
1. Teflon spiral protective sleeve
There are several kinds of Teflon spiral protective casing. Teflon straight pipe can be used, or Teflon rotary cutting pipe can be used, which is the winding pipe on the market, mainly depending on the use demand.
Teflon spiral protective sleeve is made of polytetrafluoroethylene (PTFE commonly known as Teflon, plastic king) material after extrusion sintering, drying, high temperature sintering, stereotypes and other processes made of special pipe. Teflon is also called Teflon, Teflon, Teflon, Teflon, Teflon, Teflon, PTFE, Plastic King, English is Teflon, which is widely used in machinery, electronic appliances, automobiles, aerospace, chemicals, computers, Electric heating, military, communications and other important scientific and technological industries, such as micro transformers.
Teflon spiral protective casing characteristics:
1. High chemical stability: It can withstand all strong acids, including aqua regia, hydrofluoric acid, concentrated hydrochloric acid, nitric acid, fuming sulfuric acid, organic acids, strong bases, strong oxidants, reducing agents and various organic solvents. Ideal for high purity chemical feeding use.
2. Low friction coefficient: The friction coefficient is generally only 0.04, which is a very excellent self-lubricating material, and the friction coefficient does not change with temperature.
3. Excellent anti-adhesion, the inner wall of the tube is not easy to adhere to colloids and chemicals.
4, excellent aging resistance, can be used outdoors for a long time.
5. Excellent electrical insulation properties: PTFE is a highly non-polar material with good dielectric properties, great resistance, and a dielectric constant of about 2.0, which is relatively small among all electrical insulation materials.
Part of the tube has high transparency and can easily observe the internal fluid condition.
Figure 1: Teflon spiral protective casing Source: Shenzhen Dankai
2. Teflon tube
Teflon is a registered trademark used by DuPont on a range of its fluoropolymer products. It was invented and manufactured in a Jackson laboratory by Dr. Roy J. Plunkett.
Teflon tube scientific name PTFE, English full name is Polytetrafluoroetylene, referred to as PTFE, F4 and so on. It is a synthetic polymer material that uses fluorine to replace all the hydrogen atoms in polyethylene. This material has the characteristics of acid and alkali resistance, resistance to various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, its coefficient of friction is very low, so it can be used for lubrication, but also become an ideal coating for easy cleaning and water pipe inner layer.
Teflon tube characteristics:
1, non-sticky: almost all substances are not bonded with PTFE coating. Very thin films also show very good non-stick properties.
2. Heat resistance: PTFE coating has excellent heat resistance and low temperature resistance. Short time can be high temperature to 300 ℃, generally between 240 ℃ ~ 260 ℃ can be used continuously, with significant thermal stability, it can work at freezing temperature without embrittlement, not melting at high temperature.
3, sliding: PTFE coating has a low coefficient of friction. The friction coefficient changes when the load slides, but the value is only between 0.05 and 0.15.
4. Moisture resistance: PTFE coating surface is not stained with water and oil, and it is not easy to be stained with solution during production operation. If there is a small amount of dirt, it can be removed by simple wiping. Short downtime saves man-hours and improves productivity.
5. Wear resistance: Under high load, it has excellent wear resistance. Under a certain load, it has the dual advantages of wear resistance and non-adhesion.
6, corrosion resistance: PTFE is almost not corroded by drugs, can withstand all strong acids (including aqua regia), strong oxidants, reducing agents and all kinds of organic solvents except molten alkali metals, fluorinated media and sodium hydroxide above 300 ℃, which can protect parts from any kind of chemical corrosion.
Figure 2:Teflon tube Source: Shenzhen Dankai
3. ptfe thin wall tube production plant
The regular wall thickness of Teflon pipe is 1 wall thickness, the thicker one has 2 wall thickness, 3 wall thickness, and the thicker one can reach 10 wall thickness. Thin-walled tubes refer to those with less than one wall thickness, 0.8/0.6/0.5/0.3 wall thickness, etc. Most of the thin-walled tubes are used in the medical industry, etc.
ptfe thin wall tube characteristics:
High temperature resistance: long-term use temperature 200~260 degrees;
Low temperature resistance: still soft at -100 degrees;
Corrosion resistance: able to aqua regia and all organic solvents;
Weather resistance: the best aging life in plastics;
High lubrication: with the smallest coefficient of friction in plastics (0.04);
Non-stickiness: has the smallest surface tension in solid materials without adhering to any substance;
Non-toxic: physiologically inert; excellent electrical performance, is the ideal C- class insulation material.
Ptfe thin-walled tube is made of suspension polymerized polytetrafluoroethylene resin by plunger extrusion processing. Among the known plastics, polytetrafluoroethylene has the best chemical resistance and dielectric properties. PTFE braided packing is a kind of good dynamic sealing material, which is made of expanded polytetrachloroethylene tape. It has low friction coefficient, wear resistance, chemical corrosion resistance, good sealing performance, no hydrolysis, no hard and other excellent properties. Gasket seals and lubricating materials used in various media, as well as electrical insulation, capacitor media, wire insulation, electrical instrument insulation, etc. used at various frequencies.
Shenzhen Dankai Technology Co., Ltd. (ShenZhen DanKai Technology Co., Ltd.), whose predecessor was the Fluoroplastic Material Factory of Dongguan Dandi Insulation Material Co., Ltd. established in 1998, specializes in the research and development, production and sales of FEP, PFA, PTFE and other fluoroplastic tube rod sheet membrane products and other insulation materials. The company has international standards of senior R & D team and the introduction of foreign fluorine plastic products production line. Some fluoroplastic products through ISO9001, SGS, FDA certification, Huawei, Foxconn, the United States, ZTE, Intel, AirTAC and other domestic and foreign cooperation customers fully affirmed. The company's main products are: ① pipes: Ptfe pipes, Fep pipes, Pfa pipes, Pvdf pipes; ② Heat shrinkable tubes: Ptfe heat shrinkable tubes, Fep heat shrinkable tubes, Pfa heat shrinkable tubes, Pvdf heat shrinkable tubes; ③ Plate rod film: Ptfe plate rod film, Feep plate rod film, Pfa plate rod film, Pvdf plate rod film, etc. PE: PE, special, spiral tube, spring tube, rotary cutting tube, welding rod, tee, straight, gasket, joint, cone rod, flared tube, sealing tube, braided tube, corrugated tube, etc. At the same time can be customized according to customer requirements processing production of various specifications of fluorine plastic products.
Key words:
Dankai Technology
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