Manufacturing method for quick-release type hoisting connection ring body

Abstract

The invention relates to a manufacturing method of a fast-unloading hoisting connection ring, which comprises the following steps: blanking materials are processed by a 20 CrMaTi bar material saw; the bar materials are hammered into materials of different diameters when heated to 900 DEG C to 1150 DEG C; then the bar materials are bent into a form similar to the shape of a connecting ring; the forging blanks are forged into die forgings and forging stress is removed through annealing; when the forging blanks are molded, the waste selvages are cut off and the shape is elaborately modified; a permanent seat with the same radian as the ring body is adopted for the bent die forgings; two chain joints with the same radian as the ring body are arranged at both ends; one end of the chain joint is arranged on the permanent seat and the other end is connected with a handle; the die forgings are put on the permanent seat after forging, and then the chain joints at both ends are moved to bend the bar materials into the form similar to the ring body. The manufacturing method of the fast-unloading hoisting connection ring has the advantages that unevenness of the two ends of the materials is avoided to prevent deficiency in the forging process which further influences the quality of the ring body; the direction of the metal fiber is consistent with the direction of the connecting ring, thus enhancing the intensity and toughness of the ring body.

Description

technical field [0001] The invention relates to a hoisting sling, in particular to a method for manufacturing a quick-release hoisting connecting ring body on a rope sleeve of the hoisting sling. Background technique [0002] At present, the manufacturing system of the hoisting connection ring body adopts the traditional forging process, the raw material is heated to 1150 ° C, and then the raw material is forged into a rectangular material, which is formed by die forging. During use, it was found that the strength of the connecting ring body was not ideal. After analysis and metallographic testing, it was found that during the die forging process, the direction of the metal fiber of the material was inconsistent with the direction of the ring body, which affected the strength of the connecting ring body. Contents of the invention [0003] The task of the present invention is to provide an improved quick-release lifting connection ring body manufacturing method, which solve...

AI Technical Summary

Problems solved by technology

[0003] The task of the present invention is to provide an improved quick-release lifting connection ring body manufacturing method, which solves the problem that the strength of the existing lifting connection ring body is not ideal, and the direction of the metal fiber of the material is inconsistent with the direction of the ring body. Issues Affecting Ring Strength

Images