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Processing method of improved 5052 aluminum alloy refrigerator foaming die cast

A processing technology and aluminum alloy technology, which is applied to the processing technology field of the improved 5052 aluminum alloy refrigerator foaming mold castings, can solve the problems of low strength and poor internal structure compactness, and achieve high strength, good oxidation resistance and heat resistance. good effect

Inactive Publication Date: 2013-04-03
滁州佳诚模具制造有限公司
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  • Summary
  • Abstract
  • Description
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  • 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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Embodiment Construction

[0022] The processing technology of the improved 5052 aluminum alloy refrigerator foaming mold casting includes the following steps:

[0023] (1) Ingredients

[0024] According to the element mass percentage, the following requirements are met: Si≤0.25%, Fe≤0.4%, Cu≤0.1%, Mn≤0.1%, Mg 2.2-2.8%, Cr 0.15-0.35%, Zn≤0.1%, Ce 0.04-0.07% , Pr 0.03-0.05%, Y 0.05-0.08%, other impurity elements total ≤ 0.15%, the rest is Al, and do the ingredients;

[0025] (2) Smelting

[0026] Put the ingredients into the smelting furnace in turn for smelting, the furnace is controlled at 740 ° C, and after 40 minutes of feeding, when aluminum water appears in the furnace, add a covering agent to cover, start stirring, and after adjusting the ingredients, add a refining agent for refining and slag removal. After obtaining qualified components, the molten aluminum is injected into the holding furnace from the smelting furnace, and the furnace temperature is kept at 725 ° C for 30 minutes,...

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Abstract

The invention discloses a processing method of an improved 5052 aluminum alloy refrigerator foaming die cast. The processing method comprises the four steps of compounding, smelting, pouring, and thermal treatment. According to the invention, an appropriate amount of rare earth elements Pr, Ce, and Y are added to the improved 5052 aluminum alloy, so that the dendritic crystal distance of the aluminum alloy can be effectively reduced, as-cast grains are refined, and the mechanical property of the aluminum alloy is improved. The processed aluminum alloy refrigerator foaming mold 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 5052 aluminum alloy refrigerator foam mold casting, and belongs 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 temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/06C22F1/047
Inventor 郭茂明方先好张继发
Owner 滁州佳诚模具制造有限公司
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