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.sblubricant.com
First, the engine is poorly accelerated, the main features of flameout
a) The engine is difficult to start. After starting, the muffler emits black smoke and the throttle is larger. The thicker the smoke, accompanied by the release of the exhaust pipe, the body rushed, the engine speed did not rise and fall, and turned off.
b) Engine starting difficulty (starting well after closing the choke), the engine is weak when accelerating the driving; the throttle engine is slow to respond, and there is a forward rush phenomenon, the carburetor has a tempering phenomenon, and then the flame is extinguished. Closing the choke, the throttle is slightly better, but unstable.
Second, the main reason for the engine acceleration is easy to extinguish
a) The gasoline oil circuit of the four-stroke motorcycle with poor oil supply is generally composed of the fuel tank, the fuel tank switch and the oil pipe. Due to the lack of maintenance for long-term use or the gasoline is too dirty, the fuel tank switch will be blocked half-blocked; or the fuel tank cover vent hole is blocked; It will cause siphoning in the fuel tank, and the oil supply will be poor at high speed. For the scooter, it is necessary to carefully check whether the vacuum tube leaks, otherwise it will affect the oil output of the automatic fuel tank switch, which also leads to poor high-speed oil supply.
b) Poor carburetor work Poor carburetor malfunction is one of the most important reasons for engine acceleration and easy flameout. One is caused by the rich combustible mixture provided by the carburetor when the throttle is opened.
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.
Analysis and elimination of the reasons for the failure of the four-stroke engine
Acceleration is an important indicator to measure the performance of motorcycles, and it is also one of the main characteristics to evaluate the good condition of motorcycle engines.