Blister machine blister material PVC purification treatment

Since most of the disposable medical device products are made of medical grade polyvinyl chloride (PVC) or polycarbonate (PC), and the thermal decomposition products in the PVC processing process are highly corrosive to steel, PC has high hardness and high viscosity. Therefore, the material requirements for the parts of the plasticizing part must be corrosion-resistant, wear-resistant and have high polishing performance. Most medical injection molding machines use hard chrome plating on the barrel and screw or use stainless steel as the material to make the machine screw to meet the above special requirements. In addition, in order to prevent gas from thermal decomposition during PVC processing, it is required that the surface of the movable and fixed formwork be aluminized, and the outer sheet metal is also aluminized or stainless steel is used to make sheet metal. In order to prevent the gas generated in the plastic processing process from running outside (the gas generated in the plastic processing process can be collected by special equipment and then purified before being discharged into the atmosphere).