PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Teflon heating tube
Classification:
Industry dynamics
Author:
FEP tube little sister
Source:
FEP tube little sister
Release time:
2007-07-07
Visits:
1. Teflon heating tube
The common Teflon heating tube is a new type of electric heater with strong corrosion resistance made of PTFE casing, which is used for heating various corrosive liquids. It has excellent aging resistance and good winding performance, and adopts low surface load design.
Teflon heating pipe can be divided into two kinds, one is the surface of the heating pipe directly spraying fluorine plastic material, the other is in the iron heating pipe and copper heating pipe outer layer of fluorine plastic casing.
Teflon heater is electroplating, electrolysis, degreasing, pickling, electroless nickel plating phosphorus, hydrofluoric acid, anodizing, aluminum, smelting, chemical, pharmaceutical, food and other corrosive liquid heating, condensation, evaporation, concentration, etc. The best heater choice!
Figure 1: Teflon heating tube Source: Shenzhen Dankai
performance of teflon heating tube:
1. Non-stick: Teflon is inert, almost all substances are not bonded to Teflon, and very thin films also show non-adhesive properties.
2. Cold and heat resistance: Teflon has excellent heat resistance and low temperature resistance. Short time temperature resistance to 300 ℃, melting point of 327 ℃,380 ℃ does not melt, the general work can be used continuously between 240 ℃ ~ 260 ℃, with significant thermal stability, it can work at freezing temperature without embrittlement, cold resistance to 190 ℃.
3, lubricity: Teflon has a lower coefficient of friction. The friction coefficient changes when the load slides, but the value is only between 0.04 and 0.15.
4. Non-hygroscopicity: Teflon 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, corrosion resistance: Teflon is almost not subject to chemical erosion, can withstand in addition to molten alkali metal, fluoride medium and above 300 ℃ sodium hydroxide outside all strong acid (including aqua regia), strong alkali, strong oxidant, reducing agent and a variety of organic solvents, can protect parts from any kind of chemical corrosion.
6. Weather resistance: no aging, the best non-aging life in plastics.
7, non-toxic: 300 ℃ within the normal environment, with physiological inertia, non-toxic can be used for medicine and food equipment.
8, insulation: very good dielectric constant, high insulation.
2. high temperature resistant insulated fireproof sleeve
High temperature resistant insulated fireproof sleeve is generally suitable for protecting short or straight pipelines, cable protection, automotive wiring harness, commonly used in generator sets, after installation, solid, not easy to disassemble, sealing, insulation, heat insulation, moisture-proof effect is better.
This kind of high temperature resistant insulation fireproof casing is the largest amount of Teflon tube, because the Teflon tube has a very useful high temperature resistance, insulation. However, I would like to explain the flame retardant effect in detail to prevent misunderstanding during use.
Flame retardant means that this item is not easy to burn, or will extinguish itself after leaving the fire. To give you an example, paper is on the point and can be an accelerant to help burn. Paper is not flame retardant.
In order to solve everyone's questions, I specially used a lighter to burn the Teflon tube for one minute (the yellow flame temperature of the lighter is about 200 ℃). The Teflon tube did not have any spark, and the Teflon tube did not have any flame when leaving the fire source. The burned Teflon tube turned into black powder. Without the temperature of the flame, Teflon can withstand a temperature of 260°C without melting.
Strictly speaking, Teflon tubes are not flame retardant either. According to Baidu's explanation of flame retardant, "this article is not easy to burn or will extinguish itself after leaving the fire". Teflon tubes are flame retardant. But you have to use it as a flame-retardant material, let it become a shield, burn at high temperature, burn for too long, it will turn into powder, the shield loses its protective function, and the Teflon tube will not achieve the flame-retardant effect. Therefore, it depends on how you use it.
Figure 2: Insulating fireproof sleeve Source: Shenzhen Dankai
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.
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