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Plastic tubing
- Categories:Industry news
- Author:FEP tube lady
- Origin:FEP tube lady
- Time of issue:2007-05-21 15:21
- Views:
Plastic tubing
- Categories:Industry news
- Author:FEP tube lady
- Origin:FEP tube lady
- Time of issue:2007-05-21 15:21
- Views:
1. The price of thin plastic hose
Plastic West Hose Polytetrafluoroethylene is called the "Plastic King". Roy Plankert, the father of fluororesin, began to study Freon substitutes in DuPont in 1936. They collected part of the tetrafluoroethylene and stored it in cylinders. , Preparing to carry out the next experiment the next day, but when the cylinder pressure reducing valve was opened the next day, no gas overflowed. They thought it was a gas leak, but when weighing the cylinder, they found that the cylinder did not lose weight. They saw open the cylinder and found a large amount of white powder, which was polytetrafluoroethylene.
The Chinese trade names of thin plastic hoses are "Teflon" (teflon), "Teflon", "Teflon", "Teflon" and so on. It is a polymer compound formed by polymerization of tetrafluoroethylene. Its structure is simplified as -[-CF2-CF2-]n-. It has excellent chemical stability and corrosion resistance, and is the most corrosion-resistant in the world today. One of the best materials, in addition to molten alkali metal, chlorine trifluoride, chlorine pentafluoride and liquid fluorine, it can withstand all other chemicals, boil in aqua regia without change, and is widely used in various needs of acid and alkali resistance and organic For solvents. It has airtightness, high lubrication, non-stick, electrical insulation, good anti-aging ability, and excellent temperature resistance (it can work for a long time at a temperature of plus 250°C to minus 180°C). Teflon itself is not toxic to humans. The operating temperature is -190～250℃, allowing rapid cooling and heating, or alternate operation of cooling and heating. Pressure -0.1～6.4Mpa.
It has solved many problems in the chemical, petroleum, pharmaceutical and other fields. Polytetrafluoroethylene seals, gaskets, gaskets. Polytetrafluoroethylene seals, gaskets, and gaskets are made of suspension polymerized polytetrafluoroethylene resin. Compared with other plastics, PTFE has the characteristics of chemical resistance, and it has been widely used as a sealing material and filling material.
Nowadays, all kinds of plastic products have played a pivotal role in the national economic fields such as chemical industry, machinery, electronics, electrical appliances, military industry, aerospace, environmental protection and bridges. Polytetrafluoroethylene (PTFE) conditions , Production of high-purity products (such as ion-exchange membrane electrolysis), transportation and operation of viscous materials, and food and beverage processing and production departments with strict hygiene requirements.
Picture 1: Plastic thin hose source: Shenzhen Dankai
2. PTFE high temperature resistant air pipe 200 degrees
The most famous high-temperature air pipe is fluoroplastics. Among them, PTFE is resistant to high temperature of 200 degrees, PTFE is resistant to high temperature of 260, and soluble PTFE is resistant to high temperature of 260 degrees. Among them, the most commonly used PTFE is milky white. , Followed by translucent and colorful. The only drawback is that there is no transparent PTFE tube developed yet. Polyperfluoride makes up for the shortcomings of polytetrafluoroethylene. The commonly used color is transparent, followed by color. The soluble polytetrafluoroethylene perfect polytetrafluoroethylene lacks, transparent and high temperature resistance of 260 degrees, but the price is slightly more expensive.
High temperature resistant air pipe polyperfluoroethylene propylene (F-46) is a kind of fluoroplastics developed to overcome the shortcomings of poor processing and forming properties of PTFE. It is a copolymer of polytetrafluoroethylene and polyhexafluoropropylene (F-6). Polytetrafluoroethylene propylene is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. The famous application of PTFE is the outer wall material of Water Cube, which is the largest centralized use in the world.
Except for the temperature slightly lower than that of PTFE, the high-temperature air pipe PTFE almost maintains all its excellent properties. Polyperfluoroethylene propylene has relatively high thermal fluidity, and can be molded, extruded, injection molded, etc., and can also be made into anti-corrosion coatings. Therefore, it has been widely used in petrochemical anticorrosion projects.
There are many varieties of fluoroplastics, and they are being used more and more widely in petrochemical systems.
Three, transformer bushing
The transformer bushing is the main insulation device outside the transformer box. The lead wires of the transformer windings must pass through the insulating bushing to insulate between the lead wires and between the lead wires and the transformer shell, and at the same time play the role of fixing the lead wires.
Due to the different voltage levels, insulating bushings include pure porcelain bushings, oil-filled bushings and capacitor bushings. Pure porcelain bushings are mostly used in transformers of 10kV and below. It is to wear a conductive copper rod in the porcelain bushing, and the porcelain bushing is air-insulated; oil-filled bushings are mostly used in 35kV transformers, which are filled with oil in the porcelain bushing. , Wear a conductive copper rod in the porcelain bushing, and the copper rod is covered with insulating paper; the capacitive bushing is used on high-voltage transformers above 100kV. It consists of a main insulating capacitor core, outer insulating upper and lower porcelain parts, connecting sleeves, and oil pillows. , Spring assembly, base, equalizing ball, measuring terminal, terminal block, rubber gasket, insulating oil, etc.
With the development of my country's power industry, power supply has increased year by year, and power transformers have gradually developed in the direction of high voltage and large capacity. At the same time, due to the improvement of manufacturing technology, the insulation distance of each part of the transformer product is gradually reduced. In this way, the capacitor bushing as a matching product of the transformer has stricter requirements on its appearance and size.
At present, many transformer bushings use Teflon tube, because Teflon has excellent performance, meets the insulation conditions required by transformers, and is resistant to high temperature, corrosion, acid and alkali, and friction.
Figure 2: Source of transformer bushing: Shenzhen Dankai
Transformer bushing polytetrafluoroethylene (Poly tetra fluoroethylene, abbreviated as PTFE), generally referred to as "non-stick coating" or "easy to clean material." This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, and its friction coefficient is extremely low, so it can be used for lubrication and become an ideal coating for easy cleaning of the inner layer of water pipes.
Shenzhen DanKai Technology Co., Ltd. (ShenZhen DanKai Technology Co.,ltd.), whose predecessor is Dongguan Dandi Insulation Material Co., Ltd. Fluoroplastic Material Factory, established in 1998, specializes in FEP, PFA, PTFE and other fluoroplastic pipes R&D, production and sales of rod, sheet and film products and other insulating materials. The company has a senior R&D team with international standards and a production line of fluorine plastic products imported from abroad. Some fluoroplastic products have passed ISO9001, SGS, FDA certification, and have been fully affirmed by domestic and foreign cooperative customers such as Huawei, Foxconn, Midea, ZTE, Intel, and AirTAC. The main products of the company are: ①Tubes: Ptfe tube, Fep tube, Pfa tube, Pvdf tube; ②Heat shrinkable tube: Ptfe heat shrinkable tube, Fep heat shrinkable tube, Pfa heat shrinkable tube, Pvdf heat shrinkable tube; ③Plate rod Membrane: Ptfe board and rod film, Fep board and rod film, Pfa board and rod film, Pvdf board and rod film; ④Insulation materials: silica gel, PE, PVC, UPE, etc.; ⑤Special category: PFA imported connector, spiral tube, spring tube , Rotary cut tube, welding rod, tee, straight-through, gasket, joint, taper rod, flared tube, sealing tube, braided tube, bellows, etc. At the same time, fluorine plastic products of various specifications can be customized and processed according to customer requirements.
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