Dongguan Riteng Industry Co.,Limited

Plastic extrusion supplier  to share with you: extrusion molding is currently one of the common plastic molding method, applies to all thermoplastics and some thermosetting plastic, forming can be all kinds of plastic tubing, rod, plate, wire and cable and profiled material etc., can also be used for plastic coloring, building material and blending, etc.The quality of extruded profile depends on the extruding mold, which is mainly composed of the head and the shaping device. Principle and characteristics of extrusion molding 1. Principle of extrusion molding extrusion molding is mainly used for forming thermal plastics, The forming principle of  plastic extrusion  is that granular or powdered plastic is first added to the hopper. Under the action of the extruder's rotating screw, the heated plastic is transported forward along the spiral groove of the screw. In this process, the plastic constantly accept plus heat and between screw and material, the material a...

Plastic extruder supplier  to introduce: plastic by the hopper into the extruder barrel, with the screw screw rotation is forced to the direction of the head. Due to the resistance of the filter screen, the diverter plate and the head mold at the mechanism, coupled with the gradual reduction of the volume between the threads, the forward material is under great pressure, and at the same time it is heated by the cylinder heat source; In addition, plastic in the movement of compression, shear, stirring and other forces, and the cylinder, screw friction and friction between plastic molecules, will produce a lot of heat.Therefore, as the temperature of the plastic in the cylinder keeps rising, its physical state gradually changes from glass state to high elastic state, and finally becomes viscous state, reaching complete plasticization. As the screw has been in the stable rotation, the plasticized material from the head of the die, equal pressure, equal amount of extrus...

The main chemical composition of   plastic extrusion profile  is PVC, so it is also called PVC profile. It is a new type of building material widely used in recent years. It has excellent properties, convenient processing and wide use. Because of its physical properties such as rigidity, elasticity, corrosion resistance and excellent aging resistance, it is usually used as a good substitute for non-ferrous metals such as copper, zinc and aluminum. Properties of  Plastic Extrusion PC Lens : Specific gravity: 1.18-1.20g/cm3 molding shrinkage: 0.5-0.8% molding temperature: 230-320 ℃ drying condition: 100-110, 4-5 hours can be used in - 60 ~ 120 ℃ for a long time. Material properties: high impact strength, good dimensional stability, colorless and transparent, good coloring, good electrical insulation, corrosion resistance and wear resistance, but poor self-lubricating, stress cracking tendency, high temperature hydrolysis, poor solubility with other resins. Suitab...