Production method of colored copper alloy casting

A production method and technology of copper alloys, which are applied in the directions of casting molds, casting mold components, casting molding equipment, etc., can solve the problems of high coloring method equipment requirements, high temperature control requirements, complex coloring liquid components, etc., without pretreatment. Process, not easy to fall off, and the effect of improving anti-oxidation performance

Active Publication Date: 2021-07-16
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition of the coloring liquid in the prior art is relatively complex, and the temperature control is high, the coloring is unstable, the color is different, and the color is uncontrollable and not permanent.
In addition, there are cumbersome pretreatment procedures before chemical coloring of copper alloys using existing technologies, and cleaning processes such as mechanical grinding and polishing of copper alloy crafts are required. more demanding

Method used

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  • Production method of colored copper alloy casting
  • Production method of colored copper alloy casting
  • Production method of colored copper alloy casting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A colored copper alloy coloring solution, the components and content per liter are: 125g of copper sulfate, 10g of ammonium chloride, 40ml of ammonia, 12ml of acetic acid, and the balance is water.

[0053] An aluminum bronze alloy for colored coloring, the composition and mass content are: Cu: balance, Sn: 0.07%, Zn: 0.7%, Pb: 0.01%, P: 0.01%, Al: 10.4%, Fe: 2.6%, Mn: 0.3%, Si: 0.1%, other impurities: 1.5%.

[0054] The production method of colored copper alloy casting, the steps are as follows:

[0055] Step 1: Fully mix and configure the above colored copper alloy coloring solution;

[0056] Step 2: Make a mold for pouring, polish the mold and brush the inner surface with an alcohol-based zircon powder coating with a thickness of 0.2mm. The alcohol-based zircon powder coating contains alcohol. After the coating is evenly applied, Ignite the alcohol-based zircon powder coating and dry the surface of the mold; the alcohol-based zircon powder coating is a mixture of a...

Embodiment 2

[0062] A colored copper alloy coloring solution, the components and content per liter are: 130g of copper sulfate, 12g of ammonium chloride, 38ml of ammonia, 10ml of acetic acid, and the balance is water.

[0063] An aluminum bronze alloy for colored coloring, the composition and mass content are: Cu: balance, Sn: 0.05%, Zn: 0.5%, Pb: 0.01%, P: 0.01%, Al: 10.4%, Fe: 2.6%, Mn: 0.25%, Si: 0.05%, other impurities: 1%.

[0064] The production method of colored copper alloy casting, the steps are as follows:

[0065] Step 1: Fully mix and configure the above colored copper alloy coloring solution;

[0066] Step 2: Make a mold for pouring, polish the mold and brush the inner surface with an alcohol-based zircon powder coating with a thickness of 1mm. The alcohol-based zircon powder coating contains alcohol, and the alcohol-based zircon powder coating After smearing evenly, ignite the alcohol-based zircon powder coating and dry the surface of the mold; the alcohol-based zircon powd...

Embodiment 3

[0072] A colored copper alloy coloring solution, the components and content per liter are: 135g of copper sulfate, 15g of ammonium chloride, 35ml of ammonia, 8ml of acetic acid, and the balance is water.

[0073] An aluminum bronze alloy for colored coloring, the composition and mass content are: Cu: balance, Sn: 0.1%, Zn: 1.0%, Pb: 0.006%, P: 0.008%, Al: 8%, Fe: 2.5%, Mn: 0.5%, Si: 0.08%, other impurities: 1.7%.

[0074] The production method of colored copper alloy casting, the steps are as follows:

[0075] Step 1: Fully mix and configure the above colored copper alloy coloring solution;

[0076] Step 2: Make a mold for pouring, polish the mold and brush the inner surface with an alcohol-based zircon powder coating with a thickness of 0.6mm. The alcohol-based zircon powder coating contains alcohol. After the coating is evenly applied, ignite the alcohol-based zircon powder coating and dry the surface of the mold; the alcohol-based zircon powder coating is made by mixing t...

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Abstract

The invention relates to a production method of a colored copper alloy casting. The method comprises the following steps that before a casting mold for pouring is closed, the surface of a casting mold cavity for pouring is colored by the aid of coloring liquid, then the surface of an aluminum bronze alloy casting is directly colored under the action of heat in the pouring and casting cooling processes, and finally, the colored copper alloy casting is directly cast. The used colored copper alloy coloring liquid is prepared from copper sulfate, ammonium chloride, ammonia water, acetic acid and water. The aluminum bronze alloy used for color coloring comprises Cu, Sn, Zn, Pb, P, Al, Fe, Mn and Si. Compared with an existing production method of a colored copper alloy casting, the method has the advantages that special surface coloring treatment is not carried out after the copper alloy casting is produced, and direct coloring is carried out in the casting process, so that the production cost is low, the efficiency is high, the operation is convenient, the colored copper alloy casting with bright and consistent color is easy to obtain, and the color is not easy to fall off.

Description

technical field [0001] The invention belongs to the field of nonferrous metal processing, and relates to a production technology of copper alloy castings, in particular to a production method of colored copper alloy castings. Background technique [0002] The surface of handicrafts made of metal mostly presents the color of the matrix, which is not only not rich enough, but also has no sense of hierarchy, and rarely achieves the required artistic effect due to the surface color. Most of the current copper alloy coloring techniques are at room temperature or slightly higher than room temperature, the prepared chemical coloring solution is applied to the outer surface of copper products. Some chemical coloring solutions also contain complexing agents and stabilizers. The complexing agent can prevent the coloring solution from settling, the stabilizer can prevent the coloring solution from decomposing and aging, and then stand or soak the copper product in the chemical coloring...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00C22C9/01C23C22/63
CPCB22C3/00C22C9/01C23C22/63
Inventor 向青春刘怡庭张伟邱克强王峰
Owner SHENYANG POLYTECHNIC UNIV
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