PVC film special screw rods realizing high-efficiency plasticization and carbon deposition prevention

Abstract

The invention relates to the technical field of screw rods, in particular to PVC film special screw rods realizing high-efficiency plasticization and carbon deposition prevention. The PVC film specialscrew rods comprise the two screw rods, the screw rods comprise screw rod bodies, screw rod edges and screw rod heads, the screw rod edges are arranged on the outer surfaces of the screw rod bodies,the screw rod heads are fixedly arranged at one ends of the screw rod bodies, limiting rings are fixedly arranged on one sides of the outer surfaces of the screw rod bodies, a plurality of through holes are uniformly formed in each limiting ring, the ends, close to the screw rod heads, of the screw rod bodies are in threaded connection with sleeves, a plurality of material extruding grooves are uniformly formed in the sides, close to the limiting rings, of the sleeves, the material extruding grooves communicate with the through holes, the outer sides of the screw rod heads are in threaded connection with fastening nuts, a plurality of discharge grooves are uniformly formed in the outer surface of each screw rod head, and a plurality of check mechanisms are uniformly and fixedly arranged atone end of each screw rod body. The PVC film special screw rods realizing high-efficiency plasticization and carbon deposition prevention have the capability of realizing high-efficiency plasticization and carbon deposition prevention, and the screw rods have the advantages of high wear resistance and high hardness through the preparation method of the screw rods.

Description

technical field [0001] The invention relates to the technical field of screws, in particular to a special screw for high-efficiency plasticization and anti-carbon deposition PVC film. Background technique [0002] The current special screw for PVC film will cause material backflow when discharging, and most of them use check rings to prevent material backflow. However, the use of check rings will cause great wear and tear, resulting in a longer service life. Short, and the replacement is cumbersome and complicated, which is not conducive to the plasticizing process. Moreover, the current PVC film special screw has poor corrosion resistance and wear resistance, insufficient strength and hardness, and does not have the effect of preventing carbon deposition. Therefore, in view of the above problems, it is necessary to innovate and improve it, and a special screw for high-efficiency plasticization and anti-carbon deposition PVC film is needed. Contents of the invention [00...

AI Technical Summary

Problems solved by technology

[0002] The current special screw for PVC film will cause material backflow when discharging, and most of them use check rings to prevent material backflow. However, the use of check rings will cause great wear and tear, resulting in a longer service life. Short, and the replacement is cumbersome and complicated, which is not conducive to the plasticizing process. Moreover, the current special screw for PVC film has poor corrosion resistance and wear resistance, insufficient strength and hardness, and does not have the effect of preventing carbon deposition.

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