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Modifier specially used for casting aluminum alloy for IC equipment and modifying treatment method

A technology for casting aluminum alloy and modification treatment, which is applied in the field of modification agent, which can solve the problems of inconvenient multiple modification treatment, long residence time of molten aluminum, deterioration and recession of castings, etc., to achieve long duration of modification, reduce the number of repeated modification treatments, delay The effect of metamorphic decay

Active Publication Date: 2018-02-23
北京九鼎通信设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, it is produced under low-pressure casting conditions, and there are problems such as long burning time, long residence time of molten aluminum, and inconvenient repeated deterioration treatment operations.
Castings are prone to deterioration and uneven deterioration. Using conventional modifiers and their treatment methods, the deterioration effect is poor

Method used

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  • Modifier specially used for casting aluminum alloy for IC equipment and modifying treatment method

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Effect test

Embodiment 1

[0039] Embodiment 1: the preparation of modifier

Embodiment 1-1

[0041] The preparation of modifier A: the raw materials used are in weight percent, 63.6% aluminum cerium alloy powder (wherein Ce content is 55%, surplus is Al), 12% aluminum strontium alloy powder (wherein Sr content is 25%, surplus Al), 4.5% electrolytic manganese powder (purity 99.9%), 10% metal Bi powder (purity 99.9%) and 9.9% metal Al powder (A00) are mixed evenly, and pressed into a cylinder of Φ10×10mm on a briquetting machine shaped particles to obtain modificator A;

[0042] The preparation of modificator B: the raw materials used are in percent by weight, the NaCl of 22%, the KCl of 22%, the NaF of 45%, 6%SrCO 3 , 3%K 2 TiF 6 and 2% BaCl 2 Mix evenly, and press on a briquetting machine to form cylindrical particles of Φ10×10mm to obtain Modifier B.

Embodiment 1-2

[0044] The preparation of modifier A: the raw materials used are in weight percent, 72.7% aluminum cerium alloy powder (wherein Ce content is 55%, surplus is Al), 10% aluminum strontium alloy powder (wherein Sr content is 25%, surplus Al), 5% electrolytic manganese powder (purity 99.9%), 8% metal Bi powder and 4.3% metal Al powder (A00) (purity 99.9%) are mixed evenly, and pressed into a cylinder of Φ10×10mm on a briquetting machine shaped particles to obtain modificator A;

[0045] The preparation of modificator B: the raw materials used are in percent by weight, the NaCl of 20%, the KCl of 23%, the NaF of 46.5%, 5%SrCO 3 , 4%K 2 TiF 6 and 1.5% BaCl 2 Mix evenly, and press on a briquetting machine to form cylindrical particles of Φ10×10mm to obtain Modifier B.

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Abstract

The invention relates to a modifier specially used for casting an aluminum alloy for IC equipment and a modifying treatment method. The modifier is composed of a modifier A and a modifier B, wherein the modifier A comprises the following components: Mn, Ce, Sr, Bi and Al; and the modifier B comprises the following raw materials: NaCl, KCl, NaF, SrCO3, K2TiF6 and BaCl2. The modifying treatment method comprises two modifying treatment processes which separately adopt the modifier A and the modifier B, so that a modified element is wider in contact with the element Si in aluminum alloy melt, themodifying effect is more uniform, modifying lasting time is longer, crystalline grains of a texture are smaller, mechanical properties of products are remarkably improved, modifying recession is delayed, and repeated modifying treatment times are reduced, and therefore, energy conservation and consumption reduction are realized, the production cost is reduced, and the market competitiveness of enterprises is strengthened.

Description

technical field [0001] The invention relates to a modification agent, in particular to a modification agent and a modification treatment method for casting aluminum alloys specially used for IC equipment. Background technique [0002] Integrated circuit (Intergrate Circuit, IC) is equipped with special casting aluminum alloy, using anti-gravity low-pressure casting equipment, and adopts the "integral casting molding" technology that integrates various molding methods to produce casting products, which have good mechanical properties, such as tensile strength High strength, high yield strength, good elongation and high hardness, and take into account good strain performance, corrosion resistance, electronic characteristics and electromagnetic properties, high material purity, high density, etc., suitable for manufacturing complex shapes on IC equipment Typical chamber parts, such as high-density precision parts such as upper target chamber, lower target chamber, lens flat box...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22C1/06C22C21/04
CPCC22C1/026C22C1/03C22C1/06C22C21/04
Inventor 王君昆
Owner 北京九鼎通信设备有限公司
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