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Alloy-processing tool and coating agent thereof

A technology for processing tools and coating agents, applied in metal processing equipment, manufacturing tools, coatings, etc., can solve the problem of high cost and achieve the effect of low cost, low production cost and excellent lubricating performance

Inactive Publication Date: 2009-06-24
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of boron nitride is relatively expensive, which makes the cost of using a coating agent prepared with boron nitride as aggregate to protect processing tools during the processing of low-melting point alloys such as magnesium alloys high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: By weight, the coating agent is composed of 100 parts of calcium fluoride, 2 parts of boric acid, 8 parts of binder and 100 parts of water.

[0011] Wherein the binder is silicate such as sodium silicate, potassium silicate, preferably sodium silicate; the water is preferably distilled water.

[0012] The manufacturing method of the coating agent comprises the following steps: (1) heating 5 parts of water to 70°C to 100°C, adding 2 parts of boric acid, and stirring until the boric acid is completely dissolved; (2) heating 20 parts of water to 70°C to 100°C, add 8 parts of binder, stir until the binder is completely melted; (3) mix 100 parts of calcium fluoride, the boric acid solution prepared in step (1), and the binder prepared in step (2) The solution and the remaining 75 parts of water were combined and stirred well.

[0013] An alloy processing tool is coated with a layer of coating agent on the part in contact with alloy melt, and the coating agent ...

Embodiment 2

[0019] Embodiment 2: By weight, the coating agent is composed of 100 parts of calcium fluoride, 0.7 parts of boric acid, 5.5 parts of binder and 105 parts of water.

[0020] The manufacturing method of the coating agent comprises the following steps: (1) heating 3 parts of water to 70°C to 100°C, adding 0.7 parts of boric acid, and stirring until the boric acid is completely dissolved; (2) heating 12 parts of water to 70°C to 100°C, add 5.5 parts of binder, and stir until the binder is completely melted; (3) mix 100 parts of calcium fluoride, the boric acid solution prepared in step (1), and the binder prepared in step (2) solution and the remaining 90 parts of water and stir well.

Embodiment 3

[0021] Embodiment 3: By weight, the coating agent is composed of 100 parts of calcium fluoride, 3.3 parts of boric acid, 11 parts of binder and 120 parts of water.

[0022] The manufacturing method of the coating agent comprises the following steps: (1) heating 8 parts of water to 70°C to 100°C, adding 3.3 parts of boric acid, and stirring until the boric acid is completely dissolved; (2) heating 22 parts of water to 70°C to 100°C, add 11 parts of binder, and stir until the binder is completely melted; (3) mix 100 parts of calcium fluoride, the boric acid solution prepared in step (1), and the binder prepared in step (2) solution and the remaining 90 parts of water and stir well.

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PUM

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Abstract

The invention relates to a coating agent, which comprises the following components by weight portion: 100 portions of calcium fluoride, 0.7 to 3.3 portions of boric acid, and 5.5 to 11 portions of adhesive. The coating agent is used for protecting a processing tool during production of low-melting point alloys, and has the advantages of low cost and good protecting effect.

Description

technical field [0001] The invention relates to an alloy processing tool and its coating agent, in particular to a magnesium alloy and other low melting point alloy processing tool and its coating agent. Background technique [0002] Magnesium alloy not only has the advantages of low density, high specific strength and specific stiffness, but also has the advantages of good damping performance, good machinability, good thermal conductivity, and strong electromagnetic shielding ability. It is being increasingly widely used in the fields of automobile industry, communication electronics industry and aerospace industry. [0003] During the melting, pouring, and transportation of low-melting point alloys such as magnesium alloys, the molten alloy will come into contact with processing tools such as molds, crucibles, and spoons. Due to the high processing temperature of the molten alloy, it will corrode the surface of the processing tool, so it must be protected to prolong its s...

Claims

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Application Information

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IPC IPC(8): B22C3/00
Inventor 许光良贾文光谭忠董鑫
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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