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Processing technology for high-abrasion-resistance aluminium alloy foaming mould casting

A processing technology and aluminum alloy technology, which is applied in the processing technology field of high wear-resistant aluminum alloy foam die castings, can solve the problems of low strength and poor internal structure compactness, and achieve high strength, good oxidation resistance and wear resistance. Good results

Active Publication Date: 2013-04-03
CHUZHOU DIMENGDE MOLD MFG
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, aluminum alloy foam molds still have disadvantages such as soft quality, low strength, and poor internal structure and compactness. Therefore, it is urgent to develop a high-performance aluminum alloy refrigerator foam mold

Method used

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Comparison scheme
Effect test

Embodiment Construction

[0022] The processing technology of high wear-resistant aluminum alloy foam mold casting comprises the following steps:

[0023] (1) Ingredients

[0024] According to the mass percentage of elements, the following requirements are met: Si≤0.25%, Fe≤0.35%, Cu≤0.2%, Mn 0.40-0.60%, Mg 4.8-6.0%, Cr≤0.15%, Zn≤0.25%, Ti≤0.1%, Y 0.04-0.08%, Pr 0.02-0.04%, Nd 0.03-0.06%, the total of other impurity elements ≤0.15%, the rest is Al, for batching;

[0025] (2) Melting

[0026] Put the ingredients into the smelting furnace one by one for smelting. The temperature in the furnace is controlled at 745°C. After feeding for 40 minutes, when aluminum water appears in the furnace, add a covering agent to cover and start stirring. After adjusting the composition, add a refining agent for refining and slag removal After obtaining the qualified components, pour the aluminum liquid from the melting furnace into the holding furnace, keep the furnace temperature at 730°C for 25 minutes, and ...

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PUM

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Abstract

The invention discloses a processing technology for a high-abrasion-resistance aluminium alloy foaming mould casting, and the processing technology comprises the following four steps of: burdening, smelting, casting and carrying out heat treatment. According to the processing technology disclosed by the invention, appropriate amounts of rare earth elements such as Y, Pr and Nd are added in aluminium alloy, the content of hydrogen in the aluminium alloy is reduced, and the plasticity, heat resistance, abrasion resistance and high temperature strength of the aluminium alloy are improved. An aluminium alloy refrigerator foaming mould casting processed by adopting the processing technology disclosed by the invention has the advantages of good mechanical properties, high strength, good heat resisting property, good usability, good internal structure compactness, no pore or peeling, high abrasion resistance, high oxidation resistance, low expansion coefficient and the like.

Description

technical field [0001] The invention relates to a processing technology of a high wear-resistant aluminum alloy foam mold casting, belonging to the technical field of aluminum alloy material processing. Background technique [0002] Refrigerator foam mold is an important mold for the manufacture of refrigerators. The quality of its processing and manufacturing will directly affect the quality of the entire product, and even affect the success or failure of the entire product manufacturing. At present, there are two types of materials that can be used as refrigerator foam molds: metal and non-metal. The foam mold made of metal can undoubtedly be used in large-scale and high-speed production. The metal materials of the foam mold include aluminum, copper, low melting point alloy, Nickel, iron, zinc alloy, etc. Among them, the foam mold made of aluminum alloy is the most widely used. It has the advantages of good thermal conductivity, easy to adjust the mold temperature, not e...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C1/06C22C1/08C22C21/06C22C21/08
Inventor 万忠胜
Owner CHUZHOU DIMENGDE MOLD MFG
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