Dongguan Riteng Industry Co.,Limited

Plastic extrusion die  is a kind of die for producing plastic profile products with continuous shape. It is also called extrusion die, extrusion head or die head. The word extrude consists of Latin "ex" (leave) and "trudere" (push), which vividly describes the extruding process of "applying pressure to drive materials through the mold". In the processing, the powdery or granular polymer is usually added to the extruder barrel. Under the action of the screw or plunger, the polymer moves forward along the screw groove or barrel, and gradually melts into the viscous fluid. Then through the mold set at the end of the barrel, a continuum similar to the die shape is formed. Finally, after cooling and setting, the polymer can be formed into the desired shape Shape products, such as all kinds of plastic tube bar, sheet, plastic steel doors and windows, film, decorative skirting, etc. The main chemical composition of  plastic extrusion profile  is PVC, so ...

Plastic profile products  are widely used: window frames, stair handrails, wiring ducts, skirting boards, special-shaped pipes, etc. Raw materials are mainly hard PVC, a few are semi-rigid PVC, soft PVC, polyurethane low foaming and other materials.   For rigid  PVC plastic profiles , there is a disadvantage of poor impact resistance, which is often modified by adding ACR, CPE, EVA, MBS, etc. to improve the impact strength. CPE (chlorinated polyethylene), EVA (ethylene vinyl acetate copolymer), ACR (acrylic ester), MBS (methyl methacrylate butadiene styrene graft copolymer) are generally added in the amount of 6% ~ 10%. MBS is mainly used in transparent plastic profile products. EVA is better not to be shared with lead stabilizer. When it is shared, it has poor processability and easy to form powder spots. CPE is better not to be shared with zinc stabilizer, and CPE has poor low temperature property.   In the production of plastic profile products, proces...

As the most important production tool of the extrusion plant,  plastic extrusion profile  determines the shape, specification, size and surface finish of products. The material of hardware mould is steel, which is generally composed of front mould/back mould. As the mold has the characteristics of specificity, precision, vulnerability and so on, it is very important to protect the safety of the mold: 1. Rust prevention: prevent the rust caused by water leakage/condensation/rain/handprint of injection molding machine mold. 2. Anti-collision: to prevent the die from being damaged due to the breakage of the thimble and the failure to return in place. 3. Deburring: to prevent the mold burr caused by cloth/material punch/hand wipe/nozzle clamp touch knife touch. 4. Anti pressure: prevent the die from being damaged due to the die locking due to the residual products. 5. Undervoltage: to prevent the damage caused by the excessive low-pressure protection pressure of the...

Plastic extrusion  is the process of continuously making a variety of semi-finished products of different shapes through the action of the plastic between the barrel wall of the plastic extruder and the rubber screw. The extrusion process, also known as the extrusion process, is widely used in the manufacture of treads, inner tubes, hoses, and various semi-finished products with complex cross-sectional shapes or hollow, solid. It can also be used for the filtration, granulation, plasticization of raw rubber and the linkage of the upper and lower processes, such as the supplementary kneading under the internal mixer, and the rubber supply to the calender after the hot refining. After the plastic enters the plastic extruder to form a viscous fluid, the axial force generated by the rotation of the screw further pushes the plastic forward, and the plastic is further homogenized, just like the ordinary nut moves in the axial direction. However, unlike nut movement, plastic is a ki...

There are many types of plastic pipes that can be classified, some are classified according to plastic materials, such as  PVC plastic extrusion profile , PE pipes, etc. Some are distinguished according to the physical properties of the pipe, such as plastic hoses, plastic pipes, etc., which we often say. PVC Door Frame In the pipe extrusion line, whether it is PVC pipe or PE pipe, the die plays a very important role in product quality, and its function is to uniformly pass the melt extruded from the extruder through the entire die section. The pipe die is adapted to the requirements of the extruded product and plays a decisive role in the efficiency and economy of the entire production line. The basic requirement for the two points of the die is that the die must be adapted to the material being machined; the die must be designed in strict accordance with the amount of extrusion and the section size of the pipe. The production process of the general plastic hose is rel...