PVC board is one of the most widely used plastic materials. In fact, it is a vinyl polymer, and its material is an amorphous material. In the actual use of materials, stabilizers, lubricants, auxiliary processing agent boards, pigments, impact resistance agents and other additives are often added. PVC board has non-flammability, high strength, weather resistance and excellent geometric stability. It has strong resistance to oxidants, reducing agents and strong acids. PVC board can be corroded by concentrated氧硫酸和有限公司ncentrated nitric acid, and it is not suitable for the occasions where it comes into contact with aromatic hydrocarbons and chlorinated hydrocarbons.
The melting temperature during processing is a very important process parameter for a board. If this parameter is not appropriate, it will cause the problem of material decomposition. The flow characteristics of PVC are quite poor, and its process range is very narrow. Especially materials with large molecular weights are more difficult. Processing PVC board (this material usually needs to add lubricant to improve the flow characteristics), so usually small molecular weight board materials are used. The shrinkage rate of PVC board is quite low, generally 0.2~0.6% for PVC board.
Drying treatment: PVC boards usually do not need to be dried. Melting temperature: 185~205℃ Mold temperature: 20~50℃ Injection pressure: up to 1500bar Holding pressure: up to 1000bar Injection speed: In order to avoid material degradation, generally use a considerable injection speed. Runners and gates: all conventional gates of PVC board can be used. If processing smaller parts, it is best to use needle-point gates or submerged gates; for thicker PVC board parts, it is best to use fan gates. The minimum diameter of the needle-point gate or the submerged gate should be 1mm; the thickness of the fan gate should not be less than 1mm.
典型的美国e: Polyvinyl chloride has outstanding characteristics such as abundant raw materials, mature manufacturing technology, low price and wide range of uses. It has become the second largest general-purpose resin in the world after polyethylene resin, accounting for 29% of the world's total consumption of synthetic resin %. Polyvinyl chloride is easy to process and can be processed by molding, laminating, injection, extrusion, calendering, blow molding, etc. Polyvinyl chloride is mainly used to produce artificial leather, films, wire sheaths and other plastic soft products, water supply pipes, household pipes, house wall panels, commercial machine shells, electronic product packaging, medical equipment, food packaging, and can also produce panels, doors and windows And hard plastic products such as valves.
To do a good job of every PVC sheet and produce zero quality problems" is the tenet that Lixin has always adhered to as a high-quality PVC board manufacturer. Lixin adheres to the concept of quality first to achieve sustainable development. Now it has large-scale automated production equipment and high-efficiency production lines, and has complete Our quality inspection system and quality assurance monitoring system strictly follow the production process for production, and strictly control all aspects of raw material import, production process, shipment inspection and so on.
The PVC board manufacturer-Lixin insists on meeting customer needs with high-quality products, perfect services and pragmatic prices, so that users can purchase efficiently, simply and securely. In the field of materials, we are striving to become a world-class comprehensive industrial chain enterprise of PVC products!