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Investment precision casting technology for producing automobile I-shaped front axle

A technology of investment precision casting and I-shaped front axle, which is applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of large investment, slow speed of new varieties, high equipment investment, high mold investment cost, and achieve low investment , good quality, good product quality effect

Inactive Publication Date: 2008-03-26
NANPING AUTO FORGING & STAMPING FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the front axle products of various domestic manufacturers all use forging technology, forging 45# steel into front axle blanks, heat treatment and gold processing, the equipment investment and mold investment cost are relatively high, and the speed of developing new varieties slower, higher investment

Method used

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Embodiment Construction

[0016] The following specific embodiments describe the content of the present invention in detail:

[0017] The investment precision casting process for producing automobile I-shaped front axle of the present invention is prepared according to the following sequence of process steps:

[0018] (1) Making wax molds according to the rough shape of the front axle of the automobile I-shaped: including successive wax injection, wax mold shaping, wax mold repair and inspection, wax mold welding and welding sprue opening processes;

[0019] (2) Making the mold shell: ①The wax mold surface processed in step (1) is subjected to a number of steps of applying paint, sanding and hardening the coating to form the mold shell, and then performing dewaxing to make the mold shell Separate from the wax mold to form a separate mold shell;

[0020] (3) The mold shell prepared in the baking step (2);

[0021] (4) After making the furnace lining, calculate the chemical composition requirements of the ch...

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Abstract

The present invention relates to a fusible pattern precision casting process for producing automobile H-shaped front axle. Said casting process includes the following steps; (1), preparing wax pattern; (2), applying coating material onto the wax pattern surface for several times, spreading sand and making the coating material hardened pattern shell be primarily formed, removing wax and forming pattern shell; (3), firing pattern shell; (4), pouring the molten steel into the pattern shell, before steel-smelting having to make analysis of charge mixture ratio, in the course of smelting steel having to make on-the-spot sample analysis and furnace rear analysis, adding required additive and deoxidant so as to make the molten steel be reached to the defined chemical components requirement; (5), removing pattern shell from obtained automobile H-shaped front axle casting, cleaning sand and cutting spure; (6), grinding, finishing and checking casting; (7), making quenching and tempering, heat treatment; (8), making correction and shot blasting treatment; and (9), making metalworking treatment.

Description

Technical field [0001] The invention relates to a production and processing technology of an automobile I-shaped front axle, in particular to an investment precision casting process for producing an automobile I-shaped front axle. Background technique [0002] The front axle of the automobile I-shaped (hereinafter referred to as the front axle) is an important safety part carried by the automobile. At present, the front axle products of various domestic manufacturers use the forging process to forge 45# steel into front axle blanks, which are processed by heat treatment and metal processing. The cost of equipment investment and mold investment is high, and the speed of developing new varieties Slower and larger investment. Summary of the invention [0003] The purpose of the present invention is to provide an investment precision casting process for producing automobile I-shaped front axles, which can not only greatly reduce equipment investment and mold investment, thereby redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/04B22D1/00C21C7/06
Inventor 何文义
Owner NANPING AUTO FORGING & STAMPING FACTORY
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