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Thermal-treatment processing technology for transmission disc

A processing technology and transmission disk technology, applied in heat treatment furnaces, heat treatment equipment, improvement of process efficiency, etc., can solve problems such as waste, rejection rate, influence on clutch performance, etc., and achieve the effect of easy operation, reduction of rejection rate, and simple process

Inactive Publication Date: 2018-06-12
QINGDAO XIAOMIXING ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The transmission disc in the automobile clutch is a key part of the entire clutch, which directly affects the performance of the clutch. The existing processing technology for the transmission disc is generally quenched and tempered first, and then tempered. This processing technology is subject to great precision requirements. However, if there are unqualified products after processing, they can only be scrapped and cannot be reprocessed, resulting in a large number of scrap rates and great waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Processing step of the present invention is:

[0014] a. Pre-cleaning: Put the drive plate through the material rod and hang it on the material rack, and clean it for 20 minutes;

[0015] b. Heating-quenching: transfer the cleaned transmission plate rack to the sealing furnace station, set the heating temperature to 810-830°C, enter the furnace at 920°C, carbon potential 0.6±0.05%, heating time for 10 minutes, keep warm The time is 10 minutes, the quenching oil temperature is 110-130°C, the quenching is 15 minutes, the oil is poured for 15 minutes, and the furnace pressure is 100-300Pa;

[0016] c. Post-cleaning: After the quenching is completed, transfer to the cleaning machine for cleaning, and clean for 20 minutes;

[0017] d. Tempering for the first time: transfer the cleaned transmission disc to the tempering furnace for tempering to remove the quenching stress. The temperature of the tempering furnace is 200-230°C;

[0018] e. High-temperature tempering: put the...

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PUM

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Abstract

The invention discloses a thermal-treatment processing technology for a transmission disc, and belongs to the field of automobile clutches. The invention aims to provide the thermal-treatment processing technology for the transmission disc, and the thermal-treatment processing technology comprises tempering and punching in sequence, and a process of blanking to punch a central hole and a process of tempering and leveling are added. The thermal-treatment processing technology comprises the following technological steps of pre-cleaning, heating-quenching, post cleaning, primary tempering, high-temperature tempering, adapting to punch for punching all holes, and performing thermal treatment for stress-relief tempering. The thermal-treatment processing technology is simple, is easy to operate,can re-level to rework and repair once flatness is not qualified, and greatly reduces a rejection rate.

Description

technical field [0001] The invention belongs to the field of automobile clutches. Background technique [0002] The transmission disc in the automobile clutch is a key part of the entire clutch, which directly affects the performance of the clutch. The existing processing technology for the transmission disc is generally quenched and tempered first, and then tempered. This processing technology is subject to great precision requirements. However, if there are unqualified products after processing, they can only be scrapped and cannot be reprocessed, resulting in a large number of scrap rates and great waste. Contents of the invention [0003] The purpose of the present invention is to provide a transmission plate heat treatment processing technology that first quenches and tempers, then punches, and adds two processes of blanking, punching the center hole and tempering and leveling. [0004] Processing step of the present invention is: [0005] a. Pre-cleaning: Put the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/25C21D9/00C21D1/74
CPCC21D1/25C21D1/74C21D9/0068C21D2261/00Y02P10/20
Inventor 曲立辉
Owner QINGDAO XIAOMIXING ELECTRONICS TECH CO LTD