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Welding process of maintenance forging die

A technology of welding process and mold, which is applied in the field of forging processing, can solve problems such as inconvenient processing process, mold damage, waste of resources, etc., and achieve the effects of poor repairs, good economic benefits, and improve life.

Inactive Publication Date: 2018-10-19
宁夏石炭井炭化实业公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When forging metal workpieces, due to the influence of processing technology, the molds used for long-term forging are often damaged; due to the long manufacturing cycle and high economic value of forging molds, it will be a waste of resources if they are directly discarded. After the mold is repaired, it is put into use again
Although the existing mold repair process can repair the mold to a certain extent, it needs to be repaired repeatedly due to the poor repair effect, and the service life of the repaired mold is short, which brings great inconvenience to the processing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A welding process for maintaining a forging die, the specific steps of which are:

[0016] (1) Inspection and cleaning: Check the damage of the mold to be repaired, clean the cracks, scales, fatigue layer and all impurity materials in the cavity, and clean up enough opening. Generally speaking, an angle of 52° is required, that is, welding rod The inclination angle in the welding direction to ensure that the welding wire can be deposited normally and the weldment can be obtained; the inspection and cleaning of the mold to be repaired is the basis for determining the correct welding repair process;

[0017] (2) Heating before welding: heat the weldment to between 217°C and 223°C, and then calculate and keep warm according to the method of 1h per inch of thickness; heating before welding is an important step in repairing the mold, and the heating temperature and holding time are directly Affect the final repair quality: when the temperature is too high, the workpiece will...

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PUM

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Abstract

The invention belongs to the technical field of forging machining, and relates to a welding process of a maintenance forging die. The welding process comprises the following steps of 1, checking and cleaning; 2, heating before welding; 3, surfacing; 4, slag removing after welding; 5, heating and normalizing after welding; 6, slow cooling; 7, tempering; and 8, final cooling. By utilizing the welding process, the welding process of the maintenance forging die is formed, the repair effect is good, the service life of the forging die is effectively prolonged, and normal operation of the machiningprocess is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of forging processing, and relates to a welding process for maintaining forging dies. Background technique [0002] When forging metal workpieces, due to the influence of processing technology, the molds used for long-term forging are often damaged; due to the long manufacturing cycle and high economic value of forging molds, it will be a waste of resources if they are directly discarded. The mold is put into use again after being repaired. Although the existing mold repairing process can repair the mold to a certain extent, it needs to be repaired repeatedly due to the poor repairing effect, and the service life of the repaired mold is short, which brings great inconvenience to the processing process. Contents of the invention [0003] The purpose of the present invention is to provide a welding process for repairing forging dies, which has good repairing effect and long service life of the repaired dies...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/04B23P6/00
CPCB23K9/0026B23K9/04B23P6/00
Inventor 叶伟沈宁赵红伟陆宁
Owner 宁夏石炭井炭化实业公司