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Processing method of improved 6061 aluminum alloy refrigerator foaming die cast

A processing technology, aluminum alloy technology, applied in casting and forming equipment and other directions, can solve the problems of low strength and poor internal structure compactness, and achieve the effects of high strength, good oxidation resistance and good usability

Inactive Publication Date: 2015-03-11
滁州佳诚模具制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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Experimental program
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Effect test

Embodiment Construction

[0021] The processing technology of the improved 6061 aluminum alloy refrigerator foam mold casting includes the following steps:

[0022] (1) Ingredients

[0023] According to the mass percentage of elements, the following requirements are met: Si 0.40-0.8%, Fe≤0.7%, Cu 0.15-0.40%, Mn≤0.15%, Mg 0.8-1.2%, Cr 0.04-0.35%, Zn≤0.25%, Ti≤0.15 %, Nd 0.04-0.06%, Ce 0.03-0.05%, Sc 0.02-0.04%, the total of other impurity elements ≤ 0.15%, the rest is Al, for batching;

[0024] (2) Melting

[0025] Put the ingredients into the smelting furnace in turn for smelting. The furnace is controlled at 750°C. After feeding for 40 minutes, when aluminum water appears in the furnace, add a covering agent to cover it, start stirring, and after adjusting the composition, add a refining agent to undergo 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...

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Abstract

The invention discloses a processing method of an improved 6061 aluminum alloy refrigerator foaming die cast. The processing method comprises the four steps of compounding, smelting, pouring, and carrying out thermal treatment. According to the invention, an appropriate amount of rare earth elements Nd, Ce and Sc are added to the improved 6061 aluminum alloy, so that the size of eutectic phase is significantly reduced, the as-cast structure of the alloy is uniformed and refined, and the strength as well as corrosion resistance and wear resistance of the alloy are improved. The processed aluminum alloy refrigerator foaming die cast has the advantages of good mechanical properties, high strength, good thermal resistance, good usability, good internal structure compactness, no pore and peeling defects, good wear resistance, good corrosion resistance and oxidation resistance, small expansion coefficient and the like.

Description

technical field [0001] The invention relates to a processing technology of an improved 6061 aluminum alloy refrigerator 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 temperatur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C21/02C22C1/06B22C7/02
Inventor 郭茂明
Owner 滁州佳诚模具制造有限公司
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