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Copper alloy casting technology

A casting process, copper alloy technology, applied in the field of alloy casting to achieve high tensile strength, reduce the generation of impurities, and accelerate the melting effect

Inactive Publication Date: 2017-09-29
安徽华飞机械铸锻有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional copper alloy materials can no longer meet the requirements of use in some fields, especially in occasions that need to meet the comprehensive performance of high strength, high conductivity, oxidation resistance, heat corrosion resistance, etc., such as electrodes and contact materials of various electric welding machines. Maintain excellent electrical conductivity and have high mechanical strength; heat-resistant copper alloys for the iron and steel industry are mainly used for parts such as blast furnace tuyeres, oxygen blowing nozzles, electrode holders, contact fixtures and crystallizers , not only need to have a certain mechanical strength, but also have good high temperature oxidation resistance, high softening temperature, good electrical conductivity and other comprehensive properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A copper alloy casting process, comprising the steps of:

[0028] 1. Preheat the copper to 150°C, put it into the furnace, and melt the copper to a molten state;

[0029] 2. Add silicon, magnesium, iron and zinc to the copper in the molten state, and smelt it. The smelting temperature is 850° C., and the mixed material 1 is obtained after smelting for 30 minutes;

[0030] 3. Transfer the mixed material 1 to the refining furnace for refining, add deoxidizer and refining agent into the refining furnace, raise the temperature to 1300°C within 10 minutes, refine for 20 minutes, and stand for 15 minutes to obtain mixed material 2;

[0031] 4. After removing the scum and impurities on the surface of the second molten state of the mixed material, perform pouring and molding;

[0032] 5. Cool to room temperature after pouring.

[0033] In the first step, coke is used as a covering agent to cover the copper material, which is conducive to accelerating the melting of copper, sh...

Embodiment 2

[0041] A copper alloy casting process, comprising the steps of:

[0042] 1. Preheat the copper to 150°C, put it into the furnace, and melt the copper to a molten state;

[0043] 2. Add silicon, magnesium, iron and zinc to the copper in the molten state for smelting, the smelting temperature is 800°C, and the mixed material 1 is obtained after smelting for 40 minutes;

[0044] 3. Transfer the mixed material 1 to the refining furnace for refining, add deoxidizer and refining agent into the refining furnace, raise the temperature to 1300°C within 10 minutes, refine for 10 minutes, and stand for 20 minutes to obtain mixed material 2;

[0045] 4. After removing the scum and impurities on the surface of the second molten state of the mixed material, perform pouring and molding;

[0046] 5. Cool to room temperature after pouring.

[0047] In the first step, coke is used as a covering agent to cover the copper material, which is conducive to accelerating the melting of copper, short...

Embodiment 3

[0055] A copper alloy casting process, comprising the steps of:

[0056] 1. Preheat the copper to 250°C, put it into the furnace, and melt the copper to a molten state;

[0057] 2. Add silicon, magnesium, iron and zinc to the copper in the molten state for smelting, the smelting temperature is 850°C, and the mixed material 1 is obtained after smelting for 40 minutes;

[0058] 3. Transfer mixed material 1 to a refining furnace for refining, add deoxidizer and refining agent to the refining furnace, raise the temperature to 1300°C within 10 minutes, refine for 20 minutes, and stand for 20 minutes to obtain mixed material 2;

[0059] 4. After removing the scum and impurities on the surface of the second molten state of the mixed material, perform pouring and molding;

[0060] 5. Cool to room temperature after pouring.

[0061]In the first step, coke is used as a covering agent to cover the copper material, which is conducive to accelerating the melting of copper, shortening the...

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PUM

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Abstract

The invention provides a copper alloy casting technology. The copper alloy casting technology includes the following steps of 1, pre-heating copper till 150-250 DEG C, adding the copper into a smelting furnace, and melting the copper into a molten state; 2, adding silicon, magnesium, iron and zinc into the copper which is at the molten state, conducting melting at the temperature of 800-850 DEG C for 30-40 minutes, and obtaining a mixed material I; 3, transferring the mixed material I into a refining furnace to conduct refining, adding a deoxidizing agent and a refining agent into the refining furnace, increasing the temperature to 1200-1300 DEG C within 10 minutes, conducting refining for 10-20 minutes and standing for 15-20 minutes, and obtaining a mixed material II; 4, after removing dross and impurities on the surface of the mixed material II at a molten state, conducting casting molding; and 5, cooling till the room temperature after casting. By adoption of the copper alloy casting technology, gradual cracking can be reduced, and the quality of castings can be improved. The melting point of the copper alloy casting technology is lower than pure metal, the electrical conductivity is good, the hardness is high, so that a copper alloy casting rod has high tensile strength and is wear-proof, and the manufacturing cost is low and operation is easy.

Description

technical field [0001] The invention belongs to the technical field of alloy casting, and in particular relates to a copper alloy casting process. Background technique [0002] Copper is not only an ancient metal, but also a modern engineering material full of vigor and vitality. At present, human beings have stepped into a colorful, highly civilized society characterized by electrification and electronic information, which has opened up a broader land for the application and use of copper. Copper is used by people in the form of a wide variety of metals, alloys and compounds. It has deeply penetrated into all aspects of production and life, and has become an indispensable important metal for human beings to enter and achieve rapid development in the ZI century. [0003] Copper has excellent electrical and thermal conductivity, ranking first among all engineering metal materials, which is the main basis for its pivotal role in the current electrification and electronic info...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/02C22C1/06
CPCC22C9/00C22C1/02C22C1/06
Inventor 杨胜谢枫
Owner 安徽华飞机械铸锻有限公司