PVC Resin
PVC Resin is easy to process, and can be processed by molding, lamination, injection molding, extrusion, calendering, blow molding and other hollow methods. Polyvinyl chloride is mainly used to produce artificial leather, film, wire sheath and other plastic soft products, but also can produce plates, doors and windows, pipes and valves and other plastic hard products.
PVC Resin usually inculde carbide based and ethylene based. K66-K68 PVC RESIN, K59-K55 PVC RESIN, K71-K73 PVC RESIN. PVC RESIN SG5, PVC RESIN SG3, PVC RESIN SG8.
According to the different application scope, PVC can be divided into: general-purpose PVC resin, high polymerization degree PVC resin, and cross-linked PVC resin. General-purpose PVC resin is formed by the polymerization of vinyl chloride monomer under the action of initiator; high degree of polymerization PVC resin refers to the resin polymerized by adding chain extender to the vinyl chloride monomer polymerization system; cross-linked PVC resin is A resin polymerized by adding a crosslinking agent containing diene and polyene to the vinyl chloride monomer polymerization system. Pvc Resin,Pvc Resin Powder,Pvc Resin Sg5,Pvc Resin K67 Henan Shunbang Chemical Industry CO.,Ltd , https://www.sbcpe.com
In the process of using a rotary vane vacuum pump, if it is not used for a long time or a fault occurs, the vacuum pump cannot be started normally. This article mainly describes the reasons why the vacuum pump cannot be started or cannot be started due to a fault and how to eliminate it.
The pump cannot start normally
1. The pump sticks to death 2. The oil pump wears out or foreign material accumulates 3. The blade gets stuck 4. Inhalation of water causes internal rust in the pump chamber 5. The coupling is damaged (motor runs normally and the vacuum pump does not operate)
6, the motor voltage does not match 7, connection error 8, the motor error The vacuum pump can not start properly, should identify the reason can not start or the location of the fault occurred. It should also promptly disassemble the internal cleaning of the pump to prevent secondary damage to the pump. If you are not very familiar with the vacuum pump, you must find a professional vacuum pump repair and maintenance company to carry out professional vacuum pump maintenance. Dongguan City, Hong Kong vacuum equipment professional and technical personnel maintenance of vacuum equipment is your best choice.
According to the method of obtaining vinyl chloride monomer, it can be divided into Calcium Carbide method, ethylene method and imported (EDC, VCM) monomer method (the ethylene method and imported monomer method are commonly referred to as ethylene method).
According to the polymerization method, polyvinyl chloride can be divided into four categories: suspension polyvinyl chloride, emulsion polyvinyl chloride, bulk polyvinyl chloride, and solution polyvinyl chloride. Suspension process polyvinyl chloride is the largest variety in output, accounting for about 80% of the total output of PVC. Suspension method PVC is divided into six models according to absolute viscosity: XS-1, XS-2--XS-6; XJ-1, XJ-2--, XJ-6. The meaning of each letter in the model: X-suspension method; S-loose type; J-compact type.