Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of formula of cast aluminum alloy wheel hub

A technology for casting aluminum alloys and aluminum alloys, which is applied in the formulation field of casting aluminum alloy wheels, can solve problems such as easy loosening of alloys, reduction of alloy compactness, and hydrogen absorption of aluminum liquid, so as to reduce pinhole rate and hydrogen content , strong adsorption effect

Active Publication Date: 2017-05-03
GUANGDONG DCENTI AUTO PARTS STOCK LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chemical properties of Sr are extremely active, and it is easy to oxidize. It is easy to make the aluminum liquid absorb hydrogen, and the alloy is easy to loose, resulting in a decrease in the compactness of the alloy.

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 1

[0016] In this embodiment, the formula of the cast aluminum alloy wheel hub is composed of: Si 6.5%, Mg 0.40%, Fe 0.12%, Cu 0.02%, Mn 0.02%, Zn 0.05%, Ti 0.10%, Sr 0.2%, Cr 0.01%, Zr 0.01%, B0.025%, mixed light rare earth 0.8%, Al 91.745%.

Embodiment 2

[0018] In this embodiment, the formula of the cast aluminum alloy wheel hub is composed by weight percentage: 7.0% Si, 0.28% Mg, 0.10% Fe, 0% Cu, 0.05% Mn, 0.04% Zn, 0.15% Ti, Sr 0.4%, Cr 0.05%, Zr0.02%, B 0.05%, mixed light rare earth 0.4%, Al 91.46%.

Embodiment 3

[0020] In this embodiment, the formula of the cast aluminum alloy wheel hub is composed of: 7.5% Si, 0.30% Mg, 0% Fe, 0.01% Cu, 0.04% Mn, 0.045% Zn, 0.20% Ti, Sr 0.6%, Cr 0.05%, Zr0.015%, B 0.05%, mixed light rare earth 0.6%, Al 90.59%.

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 formula for casting aluminum alloy hubs. The formula is prepared from, by weight, 6.5-7.5% of Si, 0.28-0.45% of Mg, 0-0.12% of Fe, 0-0.02% of Cu, 0.02-0.05% of Mn, 0.04-0.05% of Zn, 0.10-0.20% of Ti, 0.2-0.6% of Sr, 0.01-0.05% of Cr, 0.01-0.02% of Zr, 0.025-0.05% of B, 0.4-0.8% of mixed light rare earth and the balance Al. Due to the fact that Sr and the mixed rare earth metal serve as an alterant together, the surface defects of alloy phases can be overcome, surface tension on a new-phase interface and an old-phase interface is reduced, and the problem that compactness is reduced when only Sr is added is avoided. Zr, Ti, Cr and Al work together, the cast structure is further refined, and the hardness and the toughness of aluminum alloy are improved.

Description

technical field [0001] The invention relates to a material formula of a wheel hub, in particular to a formula of a cast aluminum alloy wheel hub. Background technique [0002] At present, A356 aluminum alloy is mostly used as automobile hub in China. A356 aluminum alloy is a eutectic cast Al-Si alloy, which is a cast aluminum alloy with excellent comprehensive properties. It not only has good casting properties (such as good fluidity, small linear shrinkage, no tendency to thermal cracking), can cast thin-walled and complex-shaped castings, but also has high strength, good plasticity and high impact toughness through heat treatment. , thus becoming the material of choice for cast aluminum alloy wheels. However, when the Al-Si alloy is prepared by the conventional casting process, due to the slow cooling rate, the segregation of Si is serious and the distribution is not uniform, especially when the Si content is high, the primary Si is very coarse, lath-like or polygonal, e...

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): C22C21/02
CPCC22C21/02
Inventor 谭红建
Owner GUANGDONG DCENTI AUTO PARTS STOCK LTD
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com