A kind of die casting aluminum alloy and its preparation method and application

A technology of casting aluminum alloys and impurities, which is applied in the field of aluminum alloys, can solve the problems of poor mechanical properties of aluminum alloys, and achieve the effect of good mechanical properties and die-casting formability

Active Publication Date: 2021-12-07
BYD CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the technical problem of poor mechanical properties of aluminum alloys in the prior art, and to provide a die-casting aluminum alloy and its preparation method and application

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

preparation example Construction

[0044] The present invention also provides a method for preparing a die-casting aluminum alloy, which includes the following steps: according to the composition ratio of the die-casting aluminum alloy, first add aluminum-containing material into the melting furnace, and then add silicon-containing material and copper-containing material after the aluminum-containing material is melted. Iron-containing material, manganese-containing material, titanium-containing material, chromium-containing material, nickel-containing material, strontium-containing material and zinc-containing material are smelted, and then cast after deslagging, refining and degassing to obtain aluminum alloy ingots. The aluminum alloy ingot is melted and die-casted to obtain the aforementioned die-cast aluminum alloy of the present invention.

[0045] In the present invention, the aluminum-containing material, silicon material, copper-containing material, iron-containing material, manganese-containing materia...

Embodiment 1-33

[0053] Prepare alloy raw materials containing various elements according to the aluminum alloy composition shown in Table 1; add pure Al to the melting furnace and smelt at 680-720°C; after pure Al is melted, add Al-Si alloy and Al-Cu alloy , Al-Fe alloy, Al-Mn alloy, Al-Ti alloy, Al-Cr alloy, Al-Ni alloy, Al-Sr alloy, smelting at 680-720 ° C; finally add pure Zn, at 660-680 ° C Smelting under the hood, so that the ingredients are stirred evenly, and a molten metal is obtained;

[0054] At 700-720°C, add slag remover and refining agent to the molten metal, carry out slag removal, refining and degassing, until the refining agent is fully reacted, then carry out slag removal to obtain alloy melt, and cast the alloy melt to obtain Aluminum alloy ingots; the aluminum alloy ingots were melted and die-cast, and the feeding temperature of die-casting was 670-720°C. The test results are shown in Table 2.

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

PropertyMeasurementUnit
yield strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to the field of aluminum alloys, in particular to a die-casting aluminum alloy and a preparation method and application thereof. In terms of weight percentage, the die-casting aluminum alloy of the present invention includes: Zn 13%-15%, Si 8.5%-10%, Cu 1.5%-3.5%, Fe 0.2%-0.4%, Mn 0.5%-0.8% , Ti 0.05%‑0.35%, Cr 0.05%‑0.25%, Ni 0.005%‑0.1%, Sr 0.005%‑0.1%, and aluminum and unavoidable impurities, the total amount of impurities <0.1%. Through the above technical solution, the die-casting aluminum alloy provided by the present invention has good mechanical properties and die-casting formability.

Description

technical field [0001] The invention relates to the field of aluminum alloys, in particular to a die-casting aluminum alloy and a preparation method and application thereof. Background technique [0002] Die casting is one of the basic forming methods of aluminum alloy, which can be used for product design of complex structural parts. The most commonly used die-casting aluminum alloy is ADC12, which is an Ai-Si-Cu alloy for die-casting specified in Japanese Industrial Standard JISH5302. It has good material flow forming performance, large forming process window, and high cost performance. It has been widely used in aluminum alloy die-casting products. ADC12 has the advantages of low density and high specific lightness, and can be used for die-casting shells, small-sized thin-shaped or brackets, etc. However, its die-casting products have medium strength, with a tensile strength of 230-250MPa, a yield strength of 160-190MPa, and an elongation rate of <3%, which can easily...

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 Patents(China)
IPC IPC(8): C22C21/10C22C1/03C22C1/06
CPCC22C1/026C22C1/03C22C1/06C22C21/10
Inventor 杨阳廖梦觉王孝东
Owner BYD 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