Unlock instant, AI-driven research and patent intelligence for your innovation.

Heat-resisting anti-corrosion magnesium alloy for automobile engine cylinder

A technology for automobile engines and magnesium alloys, which is applied in the field of magnesium alloys and heat-resistant and corrosion-resistant magnesium alloys for automobile engine cylinder blocks. It can solve the problems of low mechanical properties and corrosion resistance at room temperature, and improve high-temperature strength and creep resistance. , Improve the strength and improve the effect of corrosion resistance

Active Publication Date: 2012-10-03
JIANGSU FAVOUR AUTOMOTIVE NEW STUFF SCI TECH
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with AJ62 alloy, AJ52 alloy (Mg-5Al-2Sr) has higher heat resistance, but its room temperature mechanical properties and corrosion resistance are lower than AJ62 alloy (Eric Baril, Pierre Labelle, and Mihriban O. Pekguleryuz . Elevated Temperature Mg-Al-Sr: Creep Resistance, Mechanical Properties, and Microstructure. Jom-Journal of the Minerals Metals & Materials Society. 2003, 55(11): A34-A39.)

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heat-resisting anti-corrosion magnesium alloy for automobile engine cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Alloy composition (weight percent): 3.5%Al, 1.5%Sr, 0.2%Sb, 0.2%Cd, 0.06%Ti, the rest is Mg, control impurity elements Si≤0.02%, Fe≤0.005%, Cu≤0.015%, Ni ≤0.002%. Under the melting conditions of flux and gas protection, put industrial pure magnesium and industrial pure aluminum into the crucible, when the temperature in the furnace rises to 700°C, keep it warm for a period of time, and after the magnesium ingots are completely melted, put the Mg-Sr The master alloy, pure antimony and pure cadmium are pressed into the magnesium alloy melt, and after it melts, take out the bell jar, stir and mix evenly and continue to heat up to 750°C, add refining agent to refine the magnesium alloy melt for 10 minutes, then add Al-Ti master alloy , poured after standing for 20 minutes.

Embodiment 2

[0024] Alloy composition (weight percent): 5.0%Al, 2.0%Sr, 0.25%Sb, 0.25%Cd, 0.04%Ti, the rest is Mg, control impurity elements Si≤0.02%, Fe≤0.005%, Cu≤0.015%, Ni ≤0.002%. Under the melting conditions of flux and gas protection, put industrial pure magnesium and industrial pure aluminum into the crucible, when the temperature in the furnace rises to 680°C, keep it warm for a period of time, and after the magnesium ingots are completely melted, put the Mg-Sr The master alloy, pure antimony and pure cadmium are pressed into the magnesium alloy melt, and after it melts, take out the bell jar, stir and mix evenly and continue to heat up to 760°C, add refining agent to refine the magnesium alloy melt for 5 minutes, then add Al-Ti master alloy , poured after standing for 20 minutes.

Embodiment 3

[0026] Alloy composition (weight percent): 5.5%Al, 2.0%Sr, 0.3%Sb, 0.6%Cd, 0.06%Ti, the rest is Mg, control impurity elements Si≤0.02%, Fe≤0.005%, Cu≤0.015%, Ni ≤0.002%. Under the melting conditions of flux and gas protection, put industrial pure magnesium and industrial pure aluminum into the crucible, when the temperature in the furnace rises to 730°C, keep it warm for a period of time, and after the magnesium ingots are completely melted, put the Mg-Sr The master alloy, pure antimony and pure cadmium are pressed into the magnesium alloy melt, and after it melts, take out the bell jar, stir and mix evenly and continue to heat up to 740°C, add refining agent to refine the magnesium alloy melt for 7 minutes, then add Al-Ti master alloy , poured after standing for 15 minutes.

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
corrosion resistanceaaaaaaaaaa
Login to View More

Abstract

The invention discloses a heat-resisting anti-corrosion magnesium alloy for an automobile engine cylinder. The heat-resisting anti-corrosion magnesium alloy comprises the components in percentage by weight: 3.5-5.5% Al, 1.5-2.5% Sr, 0.2-0.4% Sb, 0.2-0.8% Cd, 0.04-0.08% Ti and the balance of Mg. According to the heat-resisting anti-corrosion magnesium alloy, the anti-corrosion property of the alloy can be greatly improved by alloying of Sb, Cd and Ti on the basis of improving the mechanical and heat-resisting property of the Mg-Al-Sr alloy.

Description

technical field [0001] The invention relates to a magnesium alloy, in particular to a heat-resistant and corrosion-resistant magnesium alloy for a cylinder block of an automobile engine, and belongs to the technical field of light metal materials. Background technique [0002] Magnesium alloy materials have the characteristics of high specific strength, high specific stiffness, and damping and shock absorption. They have become important raw materials for the automobile manufacturing industry, providing greater development space for meeting the requirements of energy saving and environmental protection in the automobile industry. Mg-Al series alloys are the most widely used casting magnesium alloys, among which AZ series and AM series magnesium alloys have been widely commercialized in the automotive industry. These alloys not only have good castability but also exhibit excellent Mechanical properties at room temperature. [0003] However, due to their poor high temperature...

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): C22C23/02
Inventor 刘子利李健朱晓春李娟刘希琴
Owner JIANGSU FAVOUR AUTOMOTIVE NEW STUFF SCI TECH