Integral forging method for large shackle

Abstract

The invention discloses an integral forging method for a large shackle, and relates to the technical field of shackles. The method comprises the following steps that SS01, charging is conducted, specifically, raw materials are tested, analyzed and charged according to requirements; SS02, forging is conducted, specifically, heating is conducted in a heating furnace, a forging is forged into a roundbar through forging equipment, and the two ends of the round bar are flattened; SS03, turning is conducted, specifically, the two ends of round steel are milled into planes, and the other parts of the round steel are turned to be round; SS04, bending forming is conducted, specifically, the round steel is subjected to bending treatment after being heated in the heating furnace; SS05, surface treatment is conducted, specifically, a finished product is ground and trimmed; SS06, the finished product is inspected; and SS07, the finished product is put in storage. The shape feature of a shackle body composed of a set of straight portions, a set of annular portions and an arc-shaped connecting portion is adopted under the condition that the bearing capacity is not affected by the shape of the finished product, the technological process of forging the round bar, flattening the two ends, milling the two ends into the planes, turning the other parts to be round and finally bending the steel isadopted during production, and the problem that existing large shackles are inconvenient to form, and consequently the production efficiency is low is solved.

Description

technical field [0001] The invention belongs to the technical field of shackles, in particular to an integral forging method for large shackles. Background technique [0002] Shackles are a kind of rigging, which can be divided into marine and land use according to the place of use. At present, better shackles are generally made of alloy steel, which has changed the history of ordinary carbon steel in the past. National standard shackles include general Lifting shackles, marine shackles and ordinary shackles are heavy and bulky, and are generally not installed in places that are not frequently disassembled. [0003] The existing shackles are heavy and bulky due to the high gravity they bear. However, the requirements for the shape are not high. Small shackles generally use die forging technology. For large shackles, it is currently difficult to forge and form. , thereby reducing the production efficiency of large shackles, which cannot satisfy the user's use effect. Conte...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an integral forging method for large shackles. Under the condition that the shape of the finished product does not affect the bearing capacity, the shackle body is set to be connected by a set of straight parts, a set of ring parts and an arc. The shape characteristics of the internal components are produced by using forged round bars, flattening at both ends, milling planes at both ends, rounding the rest of the parts, and finally bending. low problem

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