Composite plastic counter-weight shell

Abstract

The invention relates to a composite plastic counter-weight shell. The composite plastic counter-weight shell is prepared from, by weight percentage, 45-70 parts of polyvinyl chloride resin, 5-15 parts of reinforced fiber, 5-15 parts of plasticizer, 20-80 parts of barium sulfate powder, 40-80 parts of calcium carbonate powder, 0.5-1.5 parts of stabilizer, 0.5-1.5 parts of stearic acid, 0.5-1.5 parts of polyethylene wax, 1.5-3 parts of modifier, 0.5-1.5 parts of flame retardant and 0.5-1.5 part of pigment. The reinforced fiber, the calcium carbonate powder and the like are utilized to replace traditional counter-weight block iron materials for the shell, the counter-weight shell is formed through one-time extrusion without iron shell and steel bar welding operation, emissions of pollution gas are decreased, the labor and manufacturing cost for manufacturing counter-weight blocks can be remarkably reduced, and a shell painting process is omitted.

Description

technical field [0001] The invention belongs to the technical field of elevator processing, and in particular relates to a composite plastic counterweight shell. Background technique [0002] At present, the shell of the heavy block is an iron shell as a whole, which needs to be welded. Harmful gas will be generated during welding, which will pollute the environment, and because the current steel cost price is not fixed and fluctuates greatly, it has caused some uncertainty in the production cost. The current counterweight made of iron shell is manually operated in blanking, stamping, welding and other steps, which is time-consuming and labor-intensive. Contents of the invention [0003] In order to solve the above problems, the present invention provides a counterweight, the outer shell of the counterweight is made of composite material, no welding is required, one-time extrusion molding, filling body is cast in the extruded outer shell, one person The operation can be c...

AI Technical Summary

Problems solved by technology

[0002] At present, the shell of the heavy block is an iron shell as a whole, which needs to be welded. Harmful gas will be generated during welding, which will pollute the environment, and because the current steel cost price is not fixed and fluctuates greatly, it has caused some uncertainty in the production cost. The current counterweight made of iron shell is manually operated in blanking, stamping, welding and other steps, which is time-consuming and labor-intensive.

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