Ptfe PP PE PVC ABS PVDF board extrusion line can be used in the outer caring case of the pipe, the insulation level of electrical parts as well as the anti-sticking layer of the sauteing pan used for preparation, that is to say, the usages of ptfe film are extensive and different. Different from the imagination of people, ptfe film is not produced by the blow border, and it is not produced by the molding work on, instead, Ptfe film is a Teflon film which is cut from one cylinder rough-hew.
Ptfe film belongs to the mob of the fluorinated materials. PTFE film has high temperature feature, and ptfe film is not flammable, so it can be used as the insulation stuff. Among all the solidness plastics, ptfe film has the last-place rubbing coefficient. Its long-wearing anti-bending effectiveness is importantly beyond that of the other two fluorinated plastics, namely, fluorinated ethylene propene as well as hydroxyl oxy fluorinated alkyl. However, ptfe film also has shortcomings, for illustrate, it still has very high melt viscousness even in the case of above 327, and it has really high pass sensitiveness, hence it is noncompliant to use the normal forming methods, like extrusion, injection moulding as well as blow molding methods, to work ptfe film.
Different form the production of polyethylene film, one more work has to be undergone before the white powderise changing into the thin and transparent ptfe film, that is, to weightlift ptfe film into the pre-shaped blocks under the room temperature, and then to let these pre-shaped blocks heat till the temperature which is above the crystallisation target or the thawing direct so as to do the sintering, so that those can condense into the inexplicable sintered blocks(or roughcast).
Generally speaking, the heating temperature is better to be about 380. After sintering, the density of ptfe film will between 2.1 and 2.3g ml in terms of its processing conditions and the produced different crystals. If the cooling system process is relatively slow, the denseness will be relatively high. At this minute, the material will thus have high-crystal sport, high callousness as well as high-shaping stableness. Sintering under pressure would make roughcast get higher denseness and strength, and there will be no pores, which are the prerequisites to get the immoderate-thin film.
After finish the above pre-shaped sintering, people can begin to cut the film. All the work parts in the film-cutting will be installed on one signalise machine, while the signalize machine is installed at the right cast, and it can turn out in all the directions. The simple machine operators can operate the machine by press the buttons on the dominant board of this signalise machine, for illustrate, installing rough-hew or eating. The heaviness and travel rapidly of PTFE rod are pre-determined by this dominant room. After the heaviness of ptfe film and rotating numbers of roughcast are finalized, the physics dominant simple machine will be automatically decisive the eating speed.
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