Method for processing outer anticorrosive coating of steel elbow

Abstract

The invention relates to a method for processing the outer anticorrosive coating of a single steel elbow, which can improve the production efficiency. The method comprises the following steps of: the single elbow is horizontally or vertically arranged along the axial plane, nozzles at the two ends of the elbow are respectively held and supported by nozzle fixtures in the internal expansion method, wherein the rotation degrees of the two nozzle fixtures in the axial plane of the elbow and the distance between the two nozzle fixtures can be adjusted to meet the clamping requirements of the elbows with different calibers, curvature radii and central angles and the processing requirement of the anticorrosive coating. Each group assembly of forming procedure components for realizing each anticorrosive processing procedure comprises 1-4 cylindrical components, all the cylindrical components are sleeved on the outer diameter of the elbow and move along the axis of the elbow, the motion trail can be adjusted and controlled in the polar coordinates mode or the rectangular coordinates mode, each forming procedure component simultaneously performs the self-operation motion, and the outer anticorrosive coating of the elbow is formed in the compound motion of the motion along the axis of the elbow and the self-operation motion.

Description

technical field [0001] The invention relates to a processing method for an outer anti-corrosion layer of a steel elbow, in particular to a processing method for a three-layer PE outer anti-corrosion layer of a single steel elbow. Background technique [0002] At present, the known processing method of the outer anti-corrosion layer of the steel elbow is: after a plurality of steel elbows are derusted and qualified, they are sequentially connected end to end according to their axis directions to form a plane opening circular ring, and the elbow ring Placed horizontally on the circular transmission track, the electric induction heating, epoxy powder coating, composite belt winding, anti-corrosion layer rolling, anti-corrosion layer secondary heating, and anti-corrosion layer secondary rolling are arranged in sequence on the circular axis of the elbow circle. Pressing and water cooling each anti-corrosion forming process, and the components of each forming process corresponding...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortage of low production efficiency in forming and processing the outer anti-corrosion layer of existing steel elbows, the present invention provides a processing method that can respectively carry out three layers of PE outer anti-corrosion layers on a single steel elbow. Improve production efficiency while improving the processing quality of the outer anti-corrosion layer

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