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Dividing head main shaft heat treatment process

An indexing head and process technology, applied in heat treatment furnaces, heat treatment equipment, manufacturing tools, etc., can solve the problems of complex heat treatment process of the indexing head spindle, uneven quality of the indexing head spindle, and low product market competitiveness. To achieve the effect of eliminating repetitive processes, enhancing market competitiveness and improving performance

Inactive Publication Date: 2016-07-13
CHONGQING HUANDE TECH CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the heat treatment process of the indexing head spindle is complicated, and there is no uniform standard, resulting in uneven quality of the produced indexing head spindle, and many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the market competitiveness of the product is not good. high

Method used

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Embodiment Construction

[0010] The technical solution disclosed by the present invention is a heat treatment process for the main shaft of the dividing head, which is characterized in that it includes the following steps, 1) The process route is: blanking-forging-normalizing-machining-quenching-tempering-machining;

[0011] 2) Process requirements:

[0012] (1) Normalizing: Insulate in a salt bath at 830-850°C for 30-50 minutes, and air-cool directly out of the furnace to eliminate coarse grains and loosen the structure.

[0013] (2) Quenching: Insulate in a salt bath at 810-830°C for 7-8 minutes, put in 5%-10% brine to cool for 13-15s, and immediately transfer to hot oil for 13-15s continue cooling in

[0014] (3) Tempering: heat preservation in nitrate solution at 340-400°C for 60 minutes, and oil cooling. The heat treatment process of the invention eliminates many repetitive procedures and improves work efficiency. It can improve the performance of all aspects of the main shaft of the dividing ...

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Abstract

The invention discloses a dividing head main shaft heat treatment process, which is characterized by including: 1) a technological route of: blanking, forging, normalizing, machining, quenching, tempering and machining; 2) technological requirements: (1) normalizing: conducting heat preservation in 830-850DEG C salt bath for 30-50min, performing furnace discharge air cooling directly to eliminate coarse and large grains and loosen the structure; (2) quenching: conducting heat preservation in 810-830DEG C salt bath or 7-8min, performing furnace discharge directly and adding a protective jacket, then putting the product in 5%-10% saline water to conduct cooling for 13-15s, and then immediately transferring the product into 13-15s hot oil for further cooling; and (3) tempering: carrying out heat preservation in a 340-400DEG C nitrate solution for 60min, and then performing oil cooling. The heat treatment process provided by the invention omits a lot of repetitive procedures, improves the work efficiency, can improve all performance of the dividing head main shaft, increases its service life, and enhances its market competitiveness.

Description

technical field [0001] The invention relates to a heat treatment process for a main shaft of a dividing head. Background technique [0002] At present, the heat treatment process of the indexing head spindle is complicated, and there is no uniform standard, resulting in uneven quality of the produced indexing head spindle, and many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the market competitiveness of the product is not good. high. Contents of the invention [0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a heat treatment process for the main shaft of the dividing head, which eliminates many repetitive processes, improves work efficiency, and can improve the performance of the main shaft of the dividing head. In terms of performance, it increases its service life and enhances its market competitiveness. [0004] In o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/28C21D1/18
Inventor 张翠云
Owner CHONGQING HUANDE TECH CO LTD