Semi-solid die-casting aluminum alloy material and die-casting molding method using same

A technology of casting aluminum alloy and die-casting molding, which is applied in the field of semi-solid die-casting aluminum alloy material and the field of die-casting molding using this material, which can solve the problems of unfavorable die-casting and loss of macroscopic fluidity, so as to reduce harmful effects and reduce sensitivity to stress corrosion cracking properties, and the effect of improving the strength of the alloy

Active Publication Date: 2016-04-27
FUJIAN KINRUI HIGH TECH CO LTD
View PDF3 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a semi-solid die-casting aluminum alloy material and a method for die-casting molding using the material. The main purpose of the invention is to overcome the defects that ordinary casting is easy to form dendrites and lose macro fluidity, which is not conducive to die-casting.

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 Construction

[0028] Specific embodiments of the present invention will be described below.

[0029] A semi-solid die-casting aluminum alloy material, made of the following raw materials in weight percentage: Si6%-9%, Cu≤0.3%, Mn0.25%-0.55%, Mg0.2%-0.5%, Fe0.6 %~1.2%, Ni≤0.15%, Zn≤0.15%, Pb≤0.15%, Sn≤0.05%, Ti≤0.2%, total impurity≤0.15%, Al balance. By controlling the Si content at 6% to 9%, and the Fe content at 0.6% to 1.2%, good die-casting performance, corrosion resistance and mold release effect can be guaranteed; at the same time, 0.25% to 0.55% of Mn is added to form MnAl6 compound can effectively reduce the harmful effects of iron, and Mn can hinder the recrystallization process of aluminum alloy, increase the recrystallization temperature, and provide favorable conditions for the semi-solid slurry making process of alloy slurry; in addition, an appropriate amount of 0.2%~ 0.5% Mg can improve the tensile strength. Among the above components, the Si content is preferably 7%, the Fe...

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
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
elongationaaaaaaaaaa
Login to view more

Abstract

A semi-solid die-casting aluminum alloy material comprises 6%-9% of Si, 0-0.3% of Cu, 0.25%-0.55% of Mn, 0.2%-0.5% of Mg, 0.6%-1.2% of Fe, 0-0.15% of Ni, 0-0.15% of Zn, 0-0.15% of Pb, 0-0.05% of Sn, 0-0.2% of Ti, 0-0.15% of impurities, and the balance Al. The content of Si is controlled to be 6%-9% and the content of Fe is controlled to be 0.6%-1.2%, so that the good die-casting molding performance, corrosion resistance and demoulding effect are ensured; meanwhile, 0.25%-0.55% of Mn is added to form a MnAl6 compound, so that the harmful effect of iron is effectively weakened; also, Mn can hinder the recrystallization process of aluminum alloy, the recrystallization temperature is increased, and favorable conditions are provided for the semi-solid pulping process of alloy slurry; in addition, 0.2%-0.5% of Mg is contained properly so as to improve the tensile strength.

Description

technical field [0001] The invention relates to an alloy material and a die-casting method thereof, in particular to a semi-solid die-casting aluminum alloy material and a die-casting molding method using the material. Background technique [0002] Semi-solid die-casting refers to strong stirring during the solidification process of liquid metal, so that the dendrite network skeleton that is easy to form in ordinary casting is broken to form a dispersed granular structure, thereby making semi-solid metal liquid, and then Die cast into billets or castings. [0003] In the ordinary casting process, the primary crystals grow up in the form of dendrites. When the solid phase ratio reaches about 0.2, the dendrites form a continuous network skeleton and lose macroscopic fluidity. Semi-solid die-casting is to carry out strong stirring during the cooling process of liquid metal from liquid phase to solid phase, so that the dendrite network skeleton that is easy to form during ordin...

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): C22C21/02C22C1/02B22D17/00
CPCB22D17/007C22C1/026C22C21/02
Inventor 杨杰郑江水薛财荣苏孙思钟学军陈建国
Owner FUJIAN KINRUI HIGH TECH 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