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A kind of preparation technology of high-strength copper alloy plate

A preparation process and technology for copper alloy plates, applied in the field of copper-based alloy manufacturing, can solve the problems of unsatisfactory processing properties and mechanical properties of copper plates, complex components, and inability to effectively remove harmful copper impurities, etc., so as to improve machining performance, improve Morphology, effect of changing microstructure

Active Publication Date: 2018-05-01
广州铜材厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the recovered old materials and white-plated materials have complex components. If the solvent used in the normal new materials is added to the furnace during the production process, the harmful impurities in the copper cannot be effectively removed, and the processability and mechanical properties of the produced copper plates will be improved. Can not meet the requirements corresponding to the grade of tin phosphor bronze

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The designed high-strength copper alloy plate is characterized in that the weight percentage of the alloy chemical composition is:

[0023] Al 2%, Sn 3%, Mg 0.10%, Mn 0.01%, Co 0.7%, Fe 0.10%, Ti 0.01%, Ag0.02%, Ta 0.01%, Y 0.01%, the balance is copper and unavoidable non-metallic inclusions.

[0024] The preparation process adopted is as follows: (1) The materials prepared according to the composition of the alloy elements are melted in the melting furnace, and the temperature in the melting furnace is set at 1170-1180 °C, and the obtained molten material is stirred, slag-cleaned, and adjusted for sampling and testing Composition, after the composition meets the formula requirements, it is transferred into the constant temperature furnace, and the temperature of the melt in the constant temperature furnace is 1175°C. (2) The horizontal continuous casting adopts the pull-stop-reverse process, the continuous casting speed is controlled at 180mm / min, and the thickness of...

Embodiment 2

[0026] The designed high-strength copper alloy plate is characterized in that the weight percentage of the alloy chemical composition is:

[0027] Al 3%, Sn 4%, Mg 1.00%, Mn 0.03%, Co 1%, Fe 0.80%, Ti 0.02%, Ag0.04%, Ta 0.02%, Y 0.02%, the balance is copper and unavoidable non- Metal inclusions.

[0028] The preparation process adopted is as follows: (1) The materials prepared according to the composition of the alloy elements are melted in the melting furnace, and the temperature in the melting furnace is set at 1170-1180 °C, and the obtained molten material is stirred, slag-cleaned, and adjusted for sampling and testing Composition, after the composition meets the formula requirements, it is transferred into the constant temperature furnace, and the temperature of the melt in the constant temperature furnace is 1175°C. (2) The horizontal continuous casting adopts the pull-stop-reverse process, the continuous casting speed is controlled at 180mm / min, and the thickness of the...

Embodiment 3

[0030] The designed high-strength copper alloy plate is characterized in that the weight percentage of the alloy chemical composition is:

[0031] Al 2.5%, Sn 4%, Mg 1.00%, Mn 0.03%, Co 1%, Fe 0.80%, Ti 0.02%, Ag0.04%, Ta 0.02%, Y 0.02%, the balance is copper and unavoidable non- Metal inclusions.

[0032] The preparation process adopted is as follows: (1) The materials prepared according to the composition of the alloy elements are melted in the melting furnace, and the temperature in the melting furnace is set at 1170-1180 °C, and the obtained molten material is stirred, slag-cleaned, and adjusted for sampling and testing Composition, after the composition meets the formula requirements, it is transferred into the constant temperature furnace, and the temperature of the melt in the constant temperature furnace is 1175°C. (2) The horizontal continuous casting adopts the pull-stop-reverse process, the continuous casting speed is controlled at 180mm / min, and the thickness of t...

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Abstract

The invention provides a preparation process for high-strength copper alloy plates. (1) The materials prepared according to the composition of the alloy elements are melted in a melting furnace, and the obtained melt is stirred, slag-cleaned, sampled and tested to adjust the composition, and the composition conforms to After the formula is required, it is transferred to the constant temperature furnace, (2) the horizontal continuous casting adopts the pull-stop-reverse process, the continuous casting speed is controlled at 180mm / min, and the thickness of the slab is controlled at 12mm, (3) the produced cast Billet homogenization annealing, (4) billet rolling to 3mm, then 3 times of intermediate annealing, and finally rolling to 1mm, (5) annealing the plate produced in step (4) on a hover furnace, (6) The board in step (5) is subjected to surface cleaning and passivation treatment, slitting, packaging and storage. The mechanical properties can be improved, the tensile strength can be increased by 100MPa, and the elastic limit can be increased by 110MPa, while the corresponding plasticity is maintained to ensure the subsequent processability.

Description

technical field [0001] The invention relates to a preparation process of a high-strength copper alloy plate, which belongs to the field of copper-based alloy manufacturing. Background technique [0002] Existing enterprises use new materials such as cathode copper plus tin ingots in the process of tin-phosphorus bronze casting, the cost is high and the profit is low. Therefore, at present, recycled old materials and white-plated materials are mostly used in the furnace, which can save about 3,000 yuan per ton of product compared with new materials. However, the recovered old materials and white-plated materials have complex components. If the solvent used in the normal new materials is added to the furnace during the production process, the harmful impurities in the copper cannot be effectively removed, and the processability and mechanical properties of the produced copper plates will be improved. Can not meet the requirements corresponding to the grade of tin phosphor bro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/02C22F1/08
Inventor 华玉叶
Owner 广州铜材厂有限公司
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