Aluminum alloy casting method for solving shrinkage cavity problem generated in die castings

An aluminum alloy and die casting technology, applied in the field of aluminum alloy casting, can solve the problems of small inner gate area, high alloy pouring temperature, and low molten metal pouring amount, etc., so as to improve the gradual structure, reduce the pouring temperature, and ensure the quality. Effect

Inactive Publication Date: 2012-11-28
张年生
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the die-casting production process, generally due to the high casting temperature of the alloy, the mold temperature gradient layout is unreasonable; the wall thickness of the casting is not uniform, resulting in heat saving; the amount of molten metal poured is small, the coating is too thin, the feeding effect is not enough or in-casting Problems such as the small mouth area make the die-casting parts have irregular shapes and rough surfaces during the condensation process. These holes directly affect the internal quality of the die-casting parts.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0013] The present invention shows a specific embodiment of an aluminum alloy casting method for solving shrinkage cavities in die castings, including the following steps:

[0014] A. Reduce the pouring temperature: reduce the temperature of the solution during pouring, adjust the working temperature of the mold, and maintain heat balance;

[0015] B. Improve the gradual structure: reduce or eliminate the thick part of the casting, so that the wall thickness becomes uniform, and the transition between thick and thin walls adopts a gradual transition;

[0016] C. Increase the specific pressure: increase the pressure on the molten metal per unit area in the pressure chamber;

[0017] D. Alloy overflow groove: add an overflow groove on the casting to increase the capacity and thicken the inlet channel;

[0018] E. Increase the fullness of the pressure chamber: use quantitative pouring to increase the fullness of the pressure chamber;

[0019] F. Improve the gating system: make ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an aluminum alloy casting method for solving a shrinkage cavity problem generated in die castings. The method comprises the following steps of (A) reducing the casting temperature; (B) improving a cast structure; (C) increasing the specific pressure; (D) equipping overflow grooves on alloys; (E) increasing the filling degree of a pressure chamber; (F) and improving a casting system. The method provided in the invention has the advantages of reducing shrinkage cavity defects in die castings and ensuring the internal qualities of die castings.

Description

Technical field: [0001] The invention relates to an aluminum alloy casting method for solving shrinkage cavities in die castings. Background technique: [0002] In the die-casting production process, generally due to the high alloy pouring temperature, the mold temperature gradient layout is unreasonable; the casting wall thickness is uneven, resulting in heat saving; the amount of molten metal poured is small, the coating is too thin, the feeding effect is not enough or in-casting Problems such as the small mouth area make the die-casting parts have irregular shapes and rough surfaces during the condensation process. These holes directly affect the internal quality of the die-casting parts. Invention content: [0003] The object of the present invention is to overcome the above disadvantages and provide an aluminum alloy casting method for reducing shrinkage cavity defects in die castings and ensuring the internal quality of die castings to solve shrinkage cavities in die...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/00
Inventor 张年生
Owner 张年生
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products