Steel liner tetrafluoroethylene straight pipe known as loose liner: This process uses a PTFE rod turning into film, winding Sintering, applicable to atmospheric pressure, positive pressure transmission pipeline (such as waste treatment, piping, etc.), should not be used for load line (such as the pump inlet, the exit and drop or sudden cooling can produce negative pressure piping). Loose lining method of lining pipeline process wound tube process as follows: molding production tetrafluoro bar, with a lathe cut into a thin strip, by manual or mechanical methods tetrafluoroethylene thin strip wound on a pre-designed size mold, to achieve After the required thickness, and then to wrap three to four layers of E-glass ribbon in its topical same method, the outermost wire truss, molded and then fed into the sintering furnace to remove the water cooled after sintering, and then manually or by machine mechanical methods stripping, and then set into the steel pipe, flange and finish. Winding Pipe initial production more widely of a PTFE production of such tubes, freedom, small-diameter to large diameter (up to Φ2000mm above), the pipe turning film winding sintering into its integrity and uniformity of the winding tension when the thickness of the film, the degree of cleanliness of the surface of the film, when the sintering temperature, time and other factors is difficult to grasp. Winding layers, the process is difficult to control, after sintering the integrity and uniformity is difficult to ensure. Therefore, Pipe maximum wall thickness of not more than 3mm, its production process is more rigorous control due to the processing methods PTFE mainly manual, inconsistent quality, lack of effective means of detection, and the winding pipe loose lining The book of the tube wall, the negative pressure and temperature fluctuations, pipeline pumping easy the deflated and flange flanging site easy to break and other defects. www.hbthgg.com www.thgangguan.com www.naimoguanjian.com www.bengguan168.com www.hbbengguan.com www.hbbgc.com www.pvdfgc.com www.naimogd.com