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Gravure copper gold powder preparation method

A technology of copper-gold powder and metal powder is applied in the field of chemical material preparation technology, which can solve the problems of easy discoloration and poor high temperature resistance, and achieve the effects of not easy discoloration, smooth surface and high production process stability.

Inactive Publication Date: 2017-02-22
RUIAN CHENGXUAN IND & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method for preparing gravure copper-gold powder, which solves the problems of copper-gold powder in the prior art, such as anti-oxidation, poor high temperature resistance, and easy discoloration, and the metallic luster of the prepared product Strong, good product quality

Method used

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Experimental program
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Effect test

Embodiment 1

[0028] Step 1: Weigh raw materials, weigh 80kg copper block, 19.5kg zinc block and 0.5kg aluminum block.

[0029] Step 2: The raw material is melted, and antioxidant additives are added to the melting furnace. The antioxidant additives consist of 40g nonylphenol polyoxyethylene ether, 5g propylamine hydrobromide, 2g 2-ethylhexylamine hydrobromide, and 1g oleic acid Composed of triethanolamine and 5g potassium salt of hydrogenated tallow fatty acid; place the zinc block in a furnace and heat it to 450°C to dissolve the zinc block completely, preheat the aluminum block at 500°C and add it to the furnace, and raise the temperature of the furnace to 700 ℃, the aluminum block is completely dissolved, the copper block is preheated at 800 ℃, and then added to the furnace, and the temperature of the furnace is raised to 1200 ℃, so that the copper block is completely dissolved to obtain a molten metal mixture.

[0030] Step 3: Water atomization to produce metal powder, pour the molten ...

Embodiment 2

[0036] Step 1: Weigh raw materials, weigh 70kg copper block, 28kg zinc block and 2kg aluminum block.

[0037] Step 2: The raw material is melted, and antioxidant additives are added to the melting furnace. The antioxidant additives consist of 45g nonylphenol polyoxyethylene ether, 6g propylamine hydrobromide, 3g 2-ethylhexylamine hydrobromide, and 2g oleic acid Composed of triethanolamine and 6g potassium salt of hydrogenated tallow fatty acid; place the zinc block in a furnace and heat it to 460°C to dissolve the zinc block completely, preheat the aluminum block at 520°C and add it to the furnace, and raise the temperature of the furnace to 720°C ℃ to completely dissolve the aluminum block, preheat the copper block at 820°C and add it to the furnace, raise the temperature of the furnace to 1250°C to completely dissolve the copper block to obtain a molten metal mixture.

[0038] Step 3: Water atomization to produce metal powder, pour the molten metal mixture into the leak bag,...

Embodiment 3

[0044] Step 1: Weigh raw materials, weigh 95kg copper block, 4.5kg zinc block and 0.5kg aluminum block.

[0045] Step 2: The raw material is melted, and antioxidant additives are added to the melting furnace. The antioxidant additives are composed of 55g nonylphenol polyoxyethylene ether, 5g propylamine hydrobromide, 4g 2-ethylhexylamine hydrobromide, and 3g oleic acid Composed of triethanolamine and 7g potassium salt of hydrogenated tallow fatty acid; place the zinc block in a furnace and heat it to 470°C to dissolve the zinc block completely, preheat the aluminum block at 520°C and add it to the furnace, and raise the temperature of the furnace to 740 ℃, the aluminum block is completely dissolved, the copper block is preheated at 830 ℃, and then added to the furnace, and the temperature of the furnace is raised to 1290 ℃, so that the copper block is completely dissolved to obtain a molten metal mixture.

[0046] Step 3: Water atomization to produce metal powder, pour the mol...

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Abstract

The invention discloses a gravure copper gold powder preparation method for solving the problems of weak oxidation resistance high-temperature resistance and easy color change of copper gold powder in the prior art. The gravure copper gold powder preparation method comprises the steps of raw material weighing, raw material fusion, preparation of metal powder by water atomization, drying, ball milling, polishing and screening; the prepared copper gold powder resists oxidation through adding ball milling assistant in the ball milling process and adding polishing assistant in the polishing process; and the prepared product is high in metal luster, excellent in product quality, excellent in high-temperature resistance, high in production process stability and high in production efficiency.

Description

technical field [0001] The invention relates to the field of preparation technology of chemical materials, in particular to a method for preparing gravure printing copper and gold powder. Background technique [0002] Copper-gold powder is made of copper-zinc metal as the main raw material through special mechanical processing and surface chemical treatment. It has a scale structure, can float in water, presents a golden luster, and has a resplendent effect. It is widely used in coatings and printing industries such as flying gold, gold paint, handicraft coating, paper gold printing, plastic gold printing and rubber gravure printing, but the traditional copper copper gold powder has poor high temperature resistance and no oxidation resistance. It is easy to change color in the air, thus losing the metallic luster; in addition, with the strengthening of people's awareness of environmental protection and the soundness and perfection of environmental protection regulations, sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/04B22F9/08B22F1/00
CPCB22F9/04B22F9/082B22F2009/043B22F2009/042B22F2009/0828B22F1/14B22F1/10
Inventor 徐武
Owner RUIAN CHENGXUAN IND & TRADE CO LTD
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