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4. Start up production A. When heating each section, it should be heated in stages, that is, first heating the temperature of each section to 120 ℃, holding it constant for 30 minutes, then heating it to 160 ℃, holding it constant for 15 minutes, and heating it to the process temperature. B. After the […]

1.Extrusion principle The plastic processing industry is a highly comprehensive and technological industry. It involves aspects such as polymer chemistry, polymer physics, interface theory, plastic machinery, plastic processing molds, formula design principles, and process control. The extrusion theory mainly studies the movement and variation patterns of plastics in an extruder. The relationship between the three

To gain a deeper understanding of PVC pipes, we can delve into their material characteristics and advantages in detail   Material characteristics: Lightweight The lightweight material of PVC pipes makes the handling and loading and unloading process very convenient, which can greatly reduce transportation costs and installation construction intensity Excellent chemical resistance: PVC pipes have

HDPE, it is an abbreviation for high-density polyethylene, also known as low-pressure polyethylene. It is a thermoplastic resin with high crystallinity and a semitransparent non-polar surface. In terms of physical properties, its operating temperature can reach 100℃ and melting temperature can reach 120-160℃. It has good heat and cold resistance, as well as high rigidity

One cavity PVC pipe extrusion production line Φ20-Φ630 series PVC pipe extrusion machine line is mainly used in the manufacture of plastic PVC pipes with various diameters and wall thickness used in the industries such as agricultural and constructional plumbing, cable laying etc. This line is composed of conical twin screw extruder, Vacuum calibration tank,

PVC pipe is a commonly used pipeline material, widely used in fields such as construction, chemical industry, agriculture, and water supply and drainage.   The production process of PVC pipes includes three main steps: raw material preparation, mixing, and extrusion molding. Firstly, the preparation of raw materials mainly includes the preparation of PVC resin, stabilizers,

Production and application status At present, the production capacity and output of China’s PVC pipe industry are among the top in the world, and the market demand is also very strong. PVC pipes are mainly used in water supply and drainage systems, agricultural irrigation systems, etc. in the construction field. With the advancement of urbanization

The SJSZ series conical twin-screw plastic extruder belongs to the category of twin-screw extruders, and differs from parallel twin-screw extruders in that the axis lines of the two screws intersect. This model is a type of mixing and basic equipment with small shear plastic and materials that are not easily decomposed. It can be matched