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Modification agent and modification treatment method for special cast aluminum alloy for IC equipment

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: 2019-07-12
北京九鼎通信设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Modification agent and modification treatment method for special cast aluminum alloy for IC equipment
  • Modification agent and modification treatment method for special cast aluminum alloy for IC equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: Preparation of modifier

Embodiment 1-1

[0041] Preparation of modifier A: The raw materials used are based on weight percentages, including 63.6% aluminum-cerium alloy powder (with Ce content of 55% and the balance being Al), 12% aluminum-strontium alloy powder (with Sr content being 25% and the balance Is Al), 4.5% electrolytic manganese powder (purity of 99.9%), 10% metal Bi powder (purity of 99.9%) and 9.9% metal Al powder (A00) are mixed uniformly, and pressed into a cylinder of Φ10×10mm on the briquetting machine Shaped particles to obtain modifier A;

[0042] Preparation of modifier B: The raw materials used are based on weight percentages of 22% NaCl, 22% KCl, 45% NaF, 6% SrCO 3 , 3%K 2 TiF 6 And 2% BaCl 2 The mixture is uniformly mixed and compressed on a briquetting machine to form cylindrical particles with a diameter of 10×10 mm to obtain the modifier B.

Embodiment 1-2

[0044] Preparation of modifier A: The raw materials used are based on weight percentages, including 72.7% aluminum-cerium alloy powder (including 55% Ce content and Al), 10% aluminum-strontium alloy powder (including 25% Sr and the balance It is Al), 5% electrolytic manganese powder (purity of 99.9%), 8% metal Bi powder and 4.3% metal Al powder (A00) (purity 99.9%) mixed uniformly, and pressed into a cylinder of Φ10×10mm on the briquetting machine Shaped particles to obtain modifier A;

[0045] Preparation of modifier B: The raw materials used are calculated by weight percentages, 20% NaCl, 23% KCl, 46.5% NaF, 5% SrCO 3 , 4%K 2 TiF 6 And 1.5% BaCl 2 The mixture is uniformly mixed and compressed on a briquetting machine to form cylindrical particles with a diameter of 10×10 mm to obtain the 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 modifier, in particular to a modifier for cast aluminum alloy special for IC equipment and a modification treatment method. Background technique [0002] Integrated circuit (Intergrate Circuit, IC) equipment special cast aluminum alloy, using anti-gravity low-pressure casting equipment, using a variety of molding methods integrated "integral casting molding" technology to produce casting products, with good mechanical properties, such as tensile strength High strength, high yield strength, good elongation and high hardness, and good strain performance, corrosion resistance, electronic properties and electromagnetic properties, high purity of materials, high density, etc., suitable for manufacturing IC equipment with more complex shapes Typical chamber parts, such as high-density precision parts such as the cavity on the target, the cavity under the target, the flat lens box, the 330S transmission cavity and the 330PLUS transmissio...

Claims

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Application Information

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Patent Type & Authority Patents(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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