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Forklift drive axle half shaft forging technology

A technology for driving axles and forklifts, which is applied in the field of forging technology of half shafts of forklift driving axles, can solve the problems of low forging precision, complicated process, high energy consumption, etc. The effect of production costs

Inactive Publication Date: 2015-11-18
ANHUI HECHENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a forging process for the axle shaft of a forklift drive axle. This method overcomes the problems of complicated process, high energy consumption, low efficiency, and low forging precision in the traditional forging method, and is conducive to the development trend of energy saving and emission reduction in the future.

Method used

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Embodiment 1

[0019] A forging process for a half shaft of a forklift drive axle, comprising the following process steps:

[0020] a. Casting bar steel ingot, the weight percentage of the chemical composition in the steel ingot is: C2.35%, Si1.9%, Mn1%, P0.1%, S0.012%, Nb0.03%, Al1.8%, Mg0. 3%, the balance is Fe;

[0021] b. In the temperature range of 1050°C, repeatedly upsetting and elongating the bar steel ingot to make the forging ratio greater than 3, so as to pre-forge the half-axis steel ingot, heat the half-axis steel ingot to 1050°C, and put it into the forming die Inside, the half shaft is formed by forging and pressing with a forming die, and the final forging temperature is not lower than 870°C;

[0022] c. Place the formed half shaft in a controlled atmosphere box carburizing chamber, and carburize for 13 hours under the atmosphere with a carbon potential of 2.6% and a temperature of 530°C;

[0023] d. Oil quench the parts at 780°C. The temperature of the quenching oil is 125...

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Abstract

The invention discloses a forklift drive axle half shaft forging technology, which comprises a following technological step that a, a bar material steel ingot is cast, and according to weight percentage, the chemical components in the steel ingot are: C which is larger than or equal to 2.25% and smaller than or equal to 2.45%, Si which is larger than or equal to 1.4% and smaller than or equal to 2.4 %, Mn which is larger than or equal to 0.6% and smaller than or equal to 1.4%, P which is larger than or equal to 0.007% and smaller than or equal to 0.125%, S which is larger than or equal to 0.006% and smaller than or equal to 0.026%, Nb which is larger than or equal to 0.01% and smaller than or equal to 0.05%, Al which is larger than or equal to 1.5% and smaller than or equal to 2.20%, Mg which is larger than or equal to 0.25% and smaller than or equal to 0.35%, and the balance Fe. According to the method, the problems that the process is complicated and overloaded, the energy consumption is high, the efficiency is low, the forging precision is low and the like in the traditional forging method are overcome, so that the development trend of future energy conservation and emission reduction is facilitated.

Description

technical field [0001] The invention relates to a forging process of a drive axle half shaft of a forklift. Background technique [0002] The current mainstream forging method of forklift drive axle shaft still adopts the traditional forging process and post-forging heat treatment process. There are many disadvantages in this forging method: the traditional forging method requires many times of heating, which leads to increased fire consumption of forgings, large gas and electric energy consumption, long forging time, low forging efficiency, high labor intensity of employees, and poor forging accuracy. Effective control is not conducive to the future development trend of energy conservation and emission reduction. Contents of the invention [0003] The purpose of the present invention is to provide a forging process for the axle shaft of a forklift drive axle. This method overcomes the problems of complicated process, high energy consumption, low efficiency, and low forgi...

Claims

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Application Information

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IPC IPC(8): C22C37/10B21J5/02C23F17/00
Inventor 吕青堂陈栋李文宇
Owner ANHUI HECHENG MACHINERY
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