Specialised Producing Method Of Ptff Film

Ptfe ASA film extrusion line owns vast and wide-ranging service program ranging from outward pipeline defender, insulator cover of whole number gadgets and the anti-sticking pan level for cooking. Different from our resource, Ptfe film is not produced by impressible blowing or casting process. The thin film is cut from the rough in .

PTFF belongs to the crime syndicate of fluorinated materials. Such material is with the high-level temperature sustenance. This kind of stuff is non-combustible, so it can be used as dielectric stuff. Among all types of solidness plastics, PTFE owns the last-place rubbing . Its property anti-bending tense up would obviously pass other two types of fluorinated plastics: FEP and PFA. However, PTFE also owns helplessness: it may still own high-level melt viscosity under the temperature above 327 degrees Celsius. It is also with high-level gap sensitivity. Therefore, commons shape-forming methods like extrusion, shot moulding and blow moulding method acting would be hard to utilise on PTFE manufacturing.

Different from polyethylene film, a type of manufacturing routine should be practical before the white powderize turns to thin and transparent Teflon film. That is to say, PTFE raw stuff would be pressed into studied patch under the family temperature. And then, the pre-forming pieces would be heated to the temperature above crystallization direct. That is to say, burn the raw stuff above the thawing temperature to get insoluble sintered choke up(or rough out space).

Commonly, the heating temperature should be around 380 degrees Celsius. Through the sintering process, the rough out density of PTFE should be between 2.1 and 2.3g ml as per the manufacturing condition and the forming watch crystal. If the cooling work on is slow, the density would be higher. At that time, the stuff can be with high crystallizing , insensibility and high-type stability. The sintering under such hale can gain high density and callousness of PTFE rod without the macrocosm of pores. It is the precondition to gain superintendent-thin PTFE film.

When finish the above pre-forming sintering, the film cutting can be executed. The film cutting would use all operative gadgets on the signalize . The signal is installed on the right base and turn to every direction. The machine operator can run the simple machine via presses on the sign device 39;s dominant pad to do blank loading and space eating. The heaviness and speed up of film thinning would be also chosen on the dominant pad in throw out. When the film heaviness and blank wheeling are confirmed, the integer controller would mechanically determine the feeding travel rapidly.