A device and method for controlling heat treatment deformation of non-machined surface of welding part installation side

A heat treatment deformation and control method technology, applied in heat treatment furnaces, heat treatment equipment, manufacturing tools, etc., can solve problems such as unqualified, collapsed, etc., and achieve the effects of stable product quality, good consistency, and shortened processing cycle

Active Publication Date: 2020-08-11
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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Problems solved by technology

Since there are 4 circular butt welds near the non-processed surface B, there is a large residual stress after the parts are welded. During the heat treatment process, the stress is released, causing the non-processed surface B to collapse toward the large end of the part, making the non-processed surface The flatness exceeds 2mm, resulting in the slot width dimension unqualified

Method used

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  • A device and method for controlling heat treatment deformation of non-machined surface of welding part installation side
  • A device and method for controlling heat treatment deformation of non-machined surface of welding part installation side

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Embodiment Construction

[0021] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings, but the required protection scope is not limited to the description;

[0022] Such as figure 2 As shown, since the non-processed surface collapses toward the large end as a whole during the heat treatment process, the inner ring surface of the positioning ring 3 matching the non-processed surface and the upper and lower protrusions are used to clamp and fix the deformed part to limit the heat treatment process. At the same time, the lower protrusion inserted into the groove of the outer surface of the weldment and the end surface of the bottom plate 1 together play a role in supporting the installation edge and preventing the installation edge from warping. Through the above method, the flatness of the non-processed surface can be effectively controlled during the heat treatment, so that the groove width can be guaranteed in the subsequent machin...

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Abstract

The invention discloses a welding part mounting side unfinished surface heat treatment deforming control device and method. The control device comprises a bottom plate (1) and a positioning ring (3);a stop opening is formed in one end face of the bottom plate (1), the inner diameter of the stop opening is equal to the outer diameter of a mounting side on the end, with the small diameter, of a welding part, and the positioning ring (3) comprises a pair of semi-circular-ring parts, a pair of parallel upper protrusions and lower protrusions are arranged on the inner ring faces of the semi-circular-ring parts, and connecting sides are arranged on outer ring faces of the semi-circular-ring parts. The device is simple in structure, convenient to use and capable of being repeatedly used, meanwhile, deforming of the groove width position mounting side and the unfinished surface in the part heat treatment process can be effectively controlled, the product technical needs and the assembling needs are ensured, the product yield is effectively ensured while the production efficiency is improved, the machining period of the part is shortened, the product quality is stable, and consistency is good.

Description

technical field [0001] The invention belongs to the field of machining, and in particular relates to a heat treatment deformation control device and method for welded machine parts. Background technique [0002] Such as figure 1 Shown is the front mounting edge of a certain type of machine diffuser, and its process size It consists of a processed surface A and a non-processed surface B. Since there are 4 circular butt welds near the non-processed surface B, there is a large residual stress after the parts are welded. During the heat treatment process, the stress is released, causing the non-processed surface B to collapse toward the large end of the part, making the non-processed surface The flatness exceeds 2mm, resulting in the slot width dimension failed. Contents of the invention [0003] The present invention aims to provide a heat treatment deformation control device and method for the non-processed surface of the welding part mounting edge, which can control t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/50
CPCC21D9/50C21D2221/00
Inventor 徐子清龙腾杨勇刚吴欣星赖道辉方志忠甘慈琴王林
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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