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Heat treatment technoloyical method for forge piece

A process method and technology of a heat treatment furnace, applied in the field of heat treatment process of forgings, can solve problems such as energy waste, and achieve the effects of less equipment investment, low production cost and good heat treatment effect

Inactive Publication Date: 2006-11-08
CHINA NATIONAL HEAVY DUTY TRUCK GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the forging industry, the temperature after edge trimming of forgings is generally around 850°C. The heat treatment process adopted is to reheat the forgings to the required temperature and keep them warm for 2 hours after the forgings are cooled to room temperature. massive waste of energy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: Design a heat treatment furnace, install it next to the edge trimming press, put the eagerly cut carbon steel forgings into the material tray, drive the material tray to send the forgings into the furnace by the transmission chain, and adjust the temperature in the furnace to 850°C , after two hours of heat preservation, it was quenched out of the furnace, and the quenching temperature was 850°C.

Embodiment 2

[0014] Example 2: Design a heat treatment furnace, install it next to the trimming press, put the eagerly cut 40Cr steel forgings into the tray, drive the tray to send the forgings into the furnace, and adjust the temperature in the furnace to 860°C , after two hours of heat preservation, it was taken out of the furnace to cool down from 860°C to room temperature.

Embodiment 3

[0015] Example 3: Design a heat treatment furnace, install it next to the edge trimming press, put the eagerly cut carbon steel forgings into the material tray, drive the material tray to send the forgings into the furnace by the transmission chain, and adjust the temperature in the furnace to 850°C , after two hours of heat preservation, it was taken out of the furnace and cooled from 850°C to room temperature.

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PUM

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Abstract

A forging heat treatment process method relates to a forging heat treatment process and belongs to the technical field of metal material heat treatment. The inventive method step is as follows: (1) design a kind of heat treatment furnace; (2) the forging after the edge trimming is directly placed on the material tray in the heat treatment furnace; (3) set temperature by thermostat, temperature is controlled at 840- 870°C; keep warm in the heat treatment furnace for 2 hours; (4) heat treatment through the quenching tank after being released from the furnace. Using the invention simplifies the process, has good heat treatment effect, saves about 40% of energy compared with the prior art, has the advantages of simple process, no need to expand the factory building, less equipment investment, low production cost, and less energy consumption.

Description

(1) Technical field [0001] The invention relates to a heat treatment process for forgings, belonging to the technical field of metal material heat treatment. (2) Background technology [0002] At present, in the forging industry, the temperature after edge trimming of forgings is generally around 850°C. The heat treatment process adopted is to reheat the forgings to the required temperature and keep them warm for 2 hours after the forgings are cooled to room temperature. A lot of waste of energy. (3) Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention proposes a forging heat treatment process method with simple process, good heat treatment effect, energy saving and low production cost. [0004] The present invention is accomplished through the following technical measures. [0005] The method steps are as follows: [0006] (1) Design a heat treatment furnace; [0007] (2) Place the forgings after edge trimming directly on the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D1/00
Inventor 李相伟王彤俊夏霖
Owner CHINA NATIONAL HEAVY DUTY TRUCK GROUP
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