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Environmental-friendly magnesium alloy mold releasing agent

An environment-friendly, magnesium alloy technology, applied in the direction of molds, cores, mold components, etc., can solve problems such as poor fluidity, poor molding, etc., to reduce poor fluidity, improve workpiece molding quality, and excellent flow properties Effect

Inactive Publication Date: 2010-12-01
QIDONG YUSHIRO CHEMICAL INDUSTRY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, most of these parts are thin, so molding problems such as poor fluidity are prone to occur during casting
The magnesium alloy release agents currently on the market are generally water-soluble emulsion type, but when processing thin workpieces such as computer frames, poor molding often occurs, and cannot fully meet the customer's requirements for high-quality processing performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Mix and stir the following weight percentages to obtain the product:

[0027] Dimethicone 15%

[0028] Carboxyalkyl silicone oil 12%

[0029] Polyacrylate 8%

[0030] Ethylene vinyl acetate copolymer 13%

[0031] Refined rape oil 5%

[0032] P-tert-butyl benzoic acid 1%

[0033] Monoethanolamine 1%

[0034] Diisopropanolamine 2%

[0035] 5-chloro-2-methyl-4-isothiazolin-3-one 0.5%

[0036] Fatty alcohol polyoxyethylene (9) ether 2%

[0037] Fatty alcohol polyoxyethylene polyoxypropylene ether 1.5%

[0038] Water 39%.

Embodiment 2

[0040] An environmentally-friendly magnesium alloy mold release agent, which is made by mixing the following components by weight percentage:

[0041] Organic silicon 5~30% (examples 5%, 15%, 30%)

[0042] Synthetic polymer compound 5~30% (examples 5%, 15%, 30%)

[0043] Grease 1~10% (example 1%, 5%, 10%)

[0044] Rust and corrosion inhibitor 1~10% (examples 5%, 15%, 30%)

[0045] Preservative 0.2~2% (example 0.2%, 1%, 2%)

[0046] Surfactant 1~10% (example 1%, 5%, 10%)

[0047] Water 30-80% (examples 33%, 55%, 78%).

[0048] The sum of the above components is 100%.

[0049] Silicone is dimethyl silicone oil (or diethyl silicone oil, methyl phenyl silicone oil, ammonia hydrocarbon-based silicone oil, hydroxyalkyl cinnamon oil, epoxy hydrocarbon-based silicone oil, carboxyl hydrocarbon-based silicone oil, polyether silicone oil, long-chain alkyl cinnamon oil, long Any one of alkoxy silicone oil, mercapto hydrocarbon-based silicone oil, fluorocarbon-based silicone oil, and composite modified...

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PUM

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Abstract

The invention discloses an environmental-friendly magnesium alloy mold releasing agent which comprises organic silicon, a synthetic macromolecular compound, grease, an antirust corrosion inhibitor, a preservative, a surface active agent and water. The environmental-friendly magnesium alloy mold releasing agent has excellent flowing property, thus the generation of poor flowing property can be greatly reduced. The product has excellent adsorbing performance, thus the lubricating mold releasing performance of the product can be obviously improved; the product has excellent heat insulating performance, thus the molding quality of a workpiece can be obviously improved; meanwhile, the environmental-friendly magnesium alloy compression-casting mold releasing agent has environmental protection and high performance.

Description

Technical field: [0001] The invention relates to a mold release agent used in a magnesium alloy die casting process. Background technique: [0002] Magnesium alloys are mostly used in electronic equipment due to their light weight (the specific gravity is about 2 / 3 that of aluminum and 1 / 4 that of iron), strong electromagnetic interference resistance, good heat dissipation, large elastic modulus, and good shock absorption. (Such as computers, digital cameras, mobile phones, etc.) on the frame. Since the heat capacity of magnesium alloy is only 60% of that of aluminum alloy, it solidifies faster and is easy to form a cold barrier, so it needs to be well formed in a short cooling time. In addition, most of these parts are thin parts, so molding problems such as poor fluidity are likely to occur during casting. Magnesium alloy mold release agents currently on the market are generally water-soluble emulsion type, but when processing thin workpieces such as computer frames, poor mol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00B22D21/04
Inventor 林丽静彦田重广常建忠王勇文会兵
Owner QIDONG YUSHIRO CHEMICAL INDUSTRY CO LTD
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