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High-strength aluminum and magnesium alloy material for mold

An aluminum-magnesium alloy and high-strength technology, which is applied in the field of mold materials, can solve the problems of affecting the amount of aluminum alloy used, short service life, wear and other problems, and achieve the effects of easy removal, increased life, and improved purity of aluminum liquid

Inactive Publication Date: 2018-04-24
SUZHOU HAOYAN PRECISION MOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Aluminum alloy materials are widely used in construction, civil and industrial fields. At present, there are many different requirements for industrial high-strength aluminum alloy materials, such as high strength, high toughness, good processing and forming performance, high corrosion resistance, and various surfaces. Handling performance or good heat treatment performance, etc., the existing high-strength aluminum alloy materials only meet the above-mentioned part of the conditions, and cannot meet all the above-mentioned conditions at the same time, especially the problems of severe wear and short service life during use; this also makes aluminum alloy materials Restricted in use, affecting the amount of high aluminum alloy used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment provides a high-strength aluminum-magnesium alloy material for molds, including the following components by weight percentage: Cu: 1.1%, Mg: 5.3%, Si: 0.21%, Zn: 0.1%, Fe: 0..11%, Mn: 1.3%, Ti: 0.6%, Cr: 0.026%, W: 0.04%, Zr: 0.076%, La: 0.06%, Sm: 0.055%, Nd: 0.052%, Y 0.05%, Pr: 0.02%, Gd : 0.015%, the balance is Al and unavoidable impurities.

[0021] This embodiment provides a method for preparing a high-strength aluminum-magnesium alloy material for a mold, which specifically includes the following steps:

[0022] Step 1: Twice smelting: the melting temperature is 830°C, the time is 4h, and the second smelting is carried out by air cooling at 10°C / cooling to 240°C, the temperature is 800°C, and the time is 1.5h;

[0023] Step 2: primary refining: put it into the refining furnace, add a slag remover, the refining temperature is 720°C, the time is 25min, and the slag removal time is 30min, wherein the slag remover includes: potassium chloride: 22%, c...

Embodiment 2

[0030] This embodiment provides a high-strength aluminum-magnesium alloy material for molds, including the following components in weight percentage: Cu: 1.2%, Mg: 5.4%, Si: 0.23%, Zn: 0.13%, Fe: 0.13%, Mn: 1.4% %, Ti: 0.64%, W: 0.05%, Cr: 0.03%, Zr: 0.083%, La: 0.07%, Sm: 0.06%, Nd: 0.056%, Y 0.063%, Pr: 0.03%, Gd: 0.02% , the balance is Al and unavoidable impurities.

[0031] This embodiment provides a method for preparing a high-strength aluminum-magnesium alloy material for a mold, which specifically includes the following steps:

[0032] Step 1: Two smelting: the smelting temperature is 845°C, the time is 3.5h, and the second smelting is carried out by air cooling at 15°C / cooling to 220°C, the temperature is 810°C, and the time is 1h;

[0033] Step 2: primary refining: put it into the refining furnace, add a slag remover, the refining temperature is 740°C, the time is 20min, and the slag removal time is 27min, wherein the slag remover includes: potassium chloride: 24%, c...

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Abstract

The invention discloses a high-strength aluminum and magnesium alloy material for a mold. The high-strength aluminum and magnesium alloy material comprises, by weight percentage, 1.1-1.2% of Cu, 5.3-5.6% of Mg, 0.2-0.25% of Si, 0.1-0.15% of Zn, 0.1-0.2% of Fe, 1.2-1.6% of Mn, 0.6-0.7% of Ti, 0.03-0.06% of W, 0.02-0.04% of Cr, 0.07-0.12% of Zr, 0.06-0.08% of La, 0.05-0.07% of Sm, 0.05-0.06% of Nd,0.05-0.07% of Y, 0.02-0.04% of Pr, 0.01-0.03% of Gd and the balance Al and inevitable impurities. The aluminum and magnesium alloy material is high in strength, hardness and corrosion resistance, andthe service life can be prolonged.

Description

technical field [0001] The invention relates to the technical field of mold materials, in particular to a high-strength aluminum-magnesium alloy material for molds. Background technique [0002] Aluminum alloy materials are widely used in construction, civil and industrial fields. At present, there are many different requirements for industrial high-strength aluminum alloy materials, such as high strength, high toughness, good processing and forming performance, high corrosion resistance, and various surfaces. Handling performance or good heat treatment performance, etc., the existing high-strength aluminum alloy materials only meet the above-mentioned part of the conditions, and cannot meet all the above-mentioned conditions at the same time, especially the problems of severe wear and short service life during use; this also makes aluminum alloy materials It is limited in use and affects the amount of high aluminum alloy used. Contents of the invention [0003] The objec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/02C22C1/06C22F1/047
CPCC22C21/08C22C1/026C22C1/06C22F1/047
Inventor 刘浩张君张欢芬
Owner SUZHOU HAOYAN PRECISION MOLD CO LTD
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