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Thermal treatment method and equipment for manufacturing aluminum-alloy automobile steering knuckle

A technology for automobile steering knuckle and cast aluminum alloy, which is applied in the field of heat treatment of cast aluminum alloy automobile steering knuckle, and can solve the problems of no solid solution temperature, solid solution time and optimal combination of aging temperature and solid solution time.

Inactive Publication Date: 2016-05-04
CITIC DICASTAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before the process of the present invention appeared, there was also a heat treatment process for cast aluminum alloy automobile steering knuckles, but the process control range was relatively wide, and there was no optimal combination of solution temperature, solution time, aging temperature, and solution time

Method used

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  • Thermal treatment method and equipment for manufacturing aluminum-alloy automobile steering knuckle
  • Thermal treatment method and equipment for manufacturing aluminum-alloy automobile steering knuckle
  • Thermal treatment method and equipment for manufacturing aluminum-alloy automobile steering knuckle

Examples

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Effect test

Embodiment 1

[0027] The device used for heat treatment of aluminum alloy automobile steering knuckle castings includes: solid melting furnace (1), quenching water tank (2), aging furnace (3) and transmission device (4) of aluminum alloy automobile steering knuckle, characterized in that: The solid melting furnace (1), quenching water tank (2) and aging furnace (3) are sequentially connected by the transmission device (4) of the aluminum alloy automobile steering knuckle; the transmission device (4) of the aluminum alloy automobile steering knuckle is set to In the solid melting furnace, the aluminum alloy steering knuckle casting reaches 537-547°C and is kept in the solid melting furnace for 330 minutes; after entering the quenching water tank, it stays in the middle for 180 seconds; and in the aging furnace, the temperature of the aluminum alloy steering knuckle reaches 153-163°C Afterwards, heat preservation in an aging furnace for 240 minutes. The transmission device (4) of the aluminum...

Embodiment 2

[0034] The device used for heat treatment of aluminum alloy automobile steering knuckle castings includes: solid melting furnace (1), quenching water tank (2), aging furnace (3) and transmission device (4) of aluminum alloy automobile steering knuckle, characterized in that: The solid melting furnace (1), quenching water tank (2) and aging furnace (3) are sequentially connected by the transmission device (4) of the aluminum alloy automobile steering knuckle; the transmission device (4) of the aluminum alloy automobile steering knuckle is set to In the solid melting furnace, the aluminum alloy steering knuckle casting reaches 537-547°C and is kept in the solid melting furnace for 330 minutes; after entering the quenching tank, it stays for 180 seconds; and in the aging furnace, the temperature of the aluminum alloy steering knuckle reaches 153-163°C Afterwards, heat preservation in an aging furnace for 240 minutes. The transmission device (4) of the aluminum alloy automobile st...

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PUM

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Abstract

The invention provides a thermal treatment method and equipment for manufacturing an aluminum-alloy automobile steering knuckle. The thermal treatment method is characterized by comprising the following steps: (1) heating an aluminum-alloy automobile steering knuckle casting to 537-547 DEG C; (2) maintaining the temperature of the aluminum-alloy automobile steering knuckle casting at 537-547 DEG C for 335-345 minutes; (3) quenching the aluminum-alloy automobile steering knuckle casting in water of 25-35 DEG C for 180 seconds; (4) heating the aluminum-alloy automobile steering knuckle casting to 153-163 DEG; (5) maintaining the temperature of the aluminum-alloy automobile steering knuckle casting at 153-163 DEG C for 235-245 minutes; and (6) cooling the aluminum-alloy automobile steering knuckle casting in air at the room temperature. By virtue of orthogonal test optimization design on the thermal treatment method and the equipment, the aluminum-alloy automobile steering knuckle casting can have good tensile strength, yield strength, elongation and hardness after being thermally treated; the improvement on the mechanical properties is superior to other methods currently adopted in the field.

Description

technical field [0001] The invention relates to the field of heat treatment of automobile parts, in particular to a heat treatment method and equipment for a cast aluminum alloy automobile steering knuckle. Background technique [0002] At present, automobile steering knuckles are mainly made of aluminum alloy, and casting and forming occupy a major position. In the manufacturing process of cast aluminum alloy steering knuckle, heat treatment is a very important link, which directly determines the mechanical properties and internal structure of aluminum alloy steering knuckle. Before the process of the present invention appeared, there was also a heat treatment process for cast aluminum alloy automobile steering knuckles, but the process control range was relatively wide, and there was no optimal combination of solution temperature, solution time, aging temperature, and solution time. Contents of the invention [0003] Therefore, the object of the present invention is to ...

Claims

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Application Information

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IPC IPC(8): C22F1/04
CPCC22F1/04C22F1/002
Inventor 刘宏磊李昌海王国林王维山李庆军
Owner CITIC DICASTAL
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