Low plastic aluminium piston alloy

A piston alloy and low plasticity technology, applied in the field of alloy materials, can solve the problem that the convex variable ellipse aluminum alloy piston is difficult to meet the design and use requirements

Inactive Publication Date: 2006-03-29
江苏万里活塞轴瓦有限公司
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Practice has proved that the existing cast aluminum alloys have certain limitations in terms of hardness, tensile strength, volume stability and cutting performan

Method used

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Embodiment Construction

[0007] Take Cu0.9kg, Mg0.9kg, Si12kg, Fe0.5kg, Mn0.1kg, Al84.06kg and mix it into A component; take Sn0.005kg, Pb0.005kg, Zn0.1kg, Cr0.08kg, Ti0.15kg and mix it into Component B, when component A is melted to 750°C in a reverberatory furnace, first add component B, stir, and after 20 minutes, add arsenic-rich mixed rare earth element Re1.2kg, stir, and then transfer to a crucible resistance furnace to keep warm , cast into a low plasticity aluminum piston alloy at a constant temperature.

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PUM

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Abstract

A low-plasticity Al-alloy for piston is prepared from low-plasticity cast Al-alloy as basic component, As-enriched RE mixture, Sn, Pb, Zn, Cr and Ti. Its advantages are low linear expansibility, dnd high strength, hardness, volume stability and machinability.

Description

technical field [0001] The invention relates to an alloy material with aluminum as the basic component, especially a low-plasticity aluminum piston alloy used for manufacturing pistons of internal combustion engines and compressors. Background technique [0002] Pistons in internal combustion engines and compressors are extremely important parts, generally made of cast aluminum alloy, and the composition and content of alloy materials play a key role in the mechanical properties, processability and volume stability of the pistons. According to the current national standards, cast aluminum alloys use aluminum as the basic component and contain Cu, Mh, Si, Fe, Mn, and other elements, and the content of each component is within a certain range. Practice has proved that the existing cast aluminum alloys have certain limitations in terms of hardness, tensile strength, volume stability and cutting performance. It is difficult to meet the design and use requirements for the product...

Claims

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Application Information

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IPC IPC(8): C22C21/02
Inventor 黄光华
Owner 江苏万里活塞轴瓦有限公司
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