Casting technology and application of crack sensitive aluminum alloy

A crack-sensitive, casting process technology, applied in the field of aluminum alloy casting, can solve the problems of ingot resistance to cracks, easy cracks, poor casting performance, etc., achieve fine ingot structure, reduce casting internal stress, and avoid casting Effect of Ingot Cracks

Inactive Publication Date: 2018-07-03
GRANGES ALUMINUM SHANGHAI CO LTD
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increase of alloying elements in aluminum alloys, especially for crack-sensitive aluminum alloys, due to the lower content of silicon (Si) and iron (Fe) and higher content of copper (Cu), the castability of such aluminum alloys is poor, During the casting process, the crack resistance of the ingot decreases, and cracks are easy to occur, resulting in the scrapping of the ingot

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

Embodiment

[0023] For the crack-sensitive aluminum alloy, according to the casting ingredients of the aluminum alloy, the Cu content is 0.60-0.75wt%, 0.68wt%, the Fe content is 0.20-0.25wt%, 0.23wt%, and the Mg content is 0.3-0.45wt%, Take 0.33wt%, and the balance is aluminum and unavoidable impurities.

[0024] Casting conditions: casting temperature is 690-710°C, casting speed is 40mm / min, cooling water flow is 50-170m 3 / h, the cooling water pressure is 0.02-0.12Mpa.

[0025] After the aluminum alloy casting process is finished, the aluminum alloy ingot is inspected. Compared with the aluminum alloy ingot before the improvement, the yield of the ingot casting is increased from 82% to at least 92%.

[0026] The present invention further significantly improves the mechanical properties of the cast aluminum alloy by optimizing the casting speed of the aluminum alloy melting and casting ingredients and casting process parameters without changing the casting process parameters such as con...

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 a casting technology of crack sensitive aluminum alloy. In casting ingredients of the aluminum alloy, Cu content is 0.60-0.90wt%, Fe content is 0.15-0.25wt%, Mg content is 0.3-0.6wt%, and in a casting process, the flow velocity of an aluminum alloy melt is 35-50mm / min. The invention also discloses a cast aluminum alloy manufactured according to the casting technology and application of the cast aluminum alloy on automobiles. The casting technology of the crack sensitive aluminum alloy has the advantages that aluminum alloy casting ingredients and casting speed in casting technological parameters are optimized, and mechanical properties of the cast aluminum alloy are further obviously improved without changing the conventional casting technological parameters such ascasting temperature and cooling water flow, so that the cracks of a cast ingot are avoided, and the rejection rate of the cast ingot is reduced.

Description

technical field [0001] The present invention generally relates to the technical field of aluminum alloy casting, and in particular to a crack-sensitive aluminum alloy casting process and its application. Background technique [0002] The main characteristics of aluminum alloy are high mechanical strength and good corrosion resistance, which can be widely used in auto parts materials. In order to greatly improve the performance of aluminum alloys, the addition of alloying elements in aluminum alloys developed in recent years has been increasing. However, with the increase of alloying elements in aluminum alloys, especially for crack-sensitive aluminum alloys, due to the lower content of silicon (Si) and iron (Fe) and higher content of copper (Cu), the castability of such aluminum alloys is poor, During the casting process, the ingot's ability to resist cracks is reduced, and cracks are prone to occur, resulting in the scrapping of the ingot. How to reduce the cracks in the ...

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
IPC IPC(8): C22C21/16B22D21/04
CPCC22C21/16B22D21/007B22D21/04
Inventor 陈健
Owner GRANGES ALUMINUM SHANGHAI CO LTD
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap