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The relationship between extruder, mold and formula in the production of door and window profiles The innovative design of building materials such as the door and window profiles has added to the aesthetics of recent structures; both in the residential and commercial buildings. Such materials like the PVC door and window profiles have been made available with a special equipment; the PVC window profile extrusion machine. In the production of plastics, different types of equipment are used. The two major machines include the extruder machine and the injection mold. In this post, we will be focusing on the relationship between the extruder machine and the injection mold in the production of the window and door plastic profile. Let's get started! To obtain the structure of the window profile both machine (the extruder and mold) are designed with screw and barrel which are used to convey the plastics. However, in the case of the extruder, the diameter of the screw...

Do you know PVC pipes and PPR pipes? Product features of PPR pipe: 1.Non-toxic and sanitary: The raw material molecules of PP-R are only carbon and hydrogen. There are no harmful and toxic elements. It is sanitary and reliable. It is not only used in hot and cold-water pipes, but also used in pure drinking water systems. 2. Thermal insulation and energy saving: The thermal conductivity of PP-R pipe is 0.21w / mk, which is only 1/200 of that of steel pipe. 3. Good heat resistance: The high working temperature can reach 95 ℃, which can meet the requirements of hot water system in building water supply and drainage specifications.  PPR pipe machine manufacturers  varies, it’s vital to choose a reliable one. 4. Long service life: PP-R pipe at a working temperature of 70 ℃, working pressure (P.N) 1.OMPa conditions, the service life can reach more than 50 years; at room temperature (20 ℃) service life can reach more than 100 years. 5. Easy installati...