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Processing method of conductive copper bus

A processing method and technology for copper busbars, applied in the field of copper busbar processing, can solve the problems of poor surface quality of finished products, uneven internal structure of finished products, poor hardness of finished products, etc., and achieve the effects of improving hardness, uniform structure, and preventing volatilization and condensation.

Pending Publication Date: 2021-03-30
WUXI TONGWEI ELECTRIC POWER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention discloses a processing method for conductive copper busbars, in order to solve the problem of poor hardness of the finished product due to uneven internal structure of the finished product by casting in the prior art and poor surface quality of the finished product by continuous extrusion molding. Bad question

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  • Processing method of conductive copper bus

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] The processing of embodiment 1 comprises:

[0095] Step 1, smelting treatment. Step 1 specifically includes:

[0096] (1) Melting preheating. Heat the furnace to 500°C with a heating rate of 150°C / h and keep it warm for 2h. Heat the furnace to 700°C with a heating rate of 100°C / h and keep it warm for 1.3h.

[0097] (2) Melting preparation. The raw materials are placed in the furnace, and the furnace is vacuumed. Furnace insulation 2.5h.

[0098] (3) Warming up for the first time. The furnace was heated to 850°C. Add phosphor bronze material and strontium material. Fill the furnace with nitrogen and stir, stirring time: 40min.

[0099] (4) Second heating. The furnace was heated to 1265°C. Boron, tin, titanium and vanadium are added. Stirring, stirring time: 1.5h.

[0100] (5) Warming up for the third time. The furnace is heated to 1450°C. The melting furnace is kept warm for 5 hours to form copper liquid.

[0101] Step 2, casting process. The molten copp...

Embodiment 2

[0125] The processing of embodiment 2 comprises:

[0126] Step 1, smelting treatment. Step 1 specifically includes:

[0127] (1) Melting preheating. Heat the furnace to 520°C with a heating rate of 150°C / h and keep it warm for 2h. Heat the furnace to 720°C with a heating rate of 100°C / h and keep it warm for 1.5h.

[0128] (2) Melting preparation. The raw materials are placed in the furnace, and the furnace is vacuumed. Furnace insulation 2.3h.

[0129] (3) Warming up for the first time. The furnace was heated to 860°C. Add phosphor bronze material and strontium material. Fill the furnace with nitrogen and stir, stirring time: 30min.

[0130] (4) Second heating. The furnace is heated to 1270°C. Boron, tin, titanium and vanadium are added. Stirring, stirring time: 1.1h.

[0131] (5) Warming up for the third time. The furnace was heated to 1465°C. The furnace is kept warm for 4 hours to form copper liquid.

[0132] Step 2, casting process. The molten copper is cr...

Embodiment 3

[0156] The processing of embodiment 3 comprises:

[0157] Step 1, smelting treatment. Step 1 specifically includes:

[0158] (1) Melting preheating. Heat the furnace to 515°C with a heating rate of 150°C / h and keep it warm for 2h. Heat the furnace to 720°C with a heating rate of 100°C / h and keep it warm for 1h.

[0159] (2) Melting preparation. The raw materials are placed in the furnace, and the furnace is vacuumed. Furnace insulation 2h.

[0160] (3) Warming up for the first time. The furnace was heated to 870°C. Add phosphor bronze material and strontium material. Fill the furnace with nitrogen and stir, stirring time: 45min.

[0161] (4) Second heating. The furnace is heated to 1250°C. Boron, tin, titanium and vanadium are added. Stirring, stirring time: 1h.

[0162] (5) Warming up for the third time. The furnace is heated to 1470°C. The furnace is kept warm for 4.5 hours to form copper liquid.

[0163] Step 2, casting process. The molten copper is crystal...

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Abstract

The invention relates to a processing method of a conductive copper bus. The method is characterized by comprising the following steps of first, smelting, wherein the first step specifically comprisesthe following steps of smelting and preheating, smelting preparation, temperature rise for the first time, temperature rise for the second time, and temperature rise for the third time; second, casting treatment, wherein molten copper is crystalized into a copper billet through a continuous casting machine, and the copper billet is pulled into a take-up stand by the continuous casting machine; third, finishing treatment, wherein the third step specifically comprises the following steps of peeling for the first time, stretching, and peeling for the second time; fourth, continuous extrusion treatment, wherein the fourth step specifically comprises the steps of extrusion and preheating, extrusion for the first time, and extrusion for the second time; fifth, stretching and cutting treatment,wherein the fifth step specifically comprises the steps of continuous stretching, and cutting and processing; sixth, surface treatment, wherein the sixth step specifically comprises the steps of acidpickling treatment, passivation treatment, air drying treatment, and drying treatment; and obtaining of a finished product. With the processing method of the conductive copper bus, the problems that according to casting in the prior art, because the internal structure of a finished product is uneven, the hardness of the finished product is poor, and because of continuous extrusion forming, the surface quality of the finished product is poor are solved.

Description

technical field [0001] The invention relates to copper bus processing, in particular to a processing method for conductive copper bus. Background technique [0002] Generally, copper bus bar is also called copper bar or copper bus bar. It is a long conductor with a rectangular or chamfered (rounded) rectangular cross section, which plays the role of transmitting current and connecting electrical equipment in the circuit. In recent years, the country has increased the investment and development of basic industries and independent innovation, and the construction of large-scale projects such as large-scale hydropower stations, nuclear power stations, subways, airports, high-speed trains, and high-tech products has required a variety of conductive components for electrical equipment used in project construction. The technical performance of the copper bus bar such as: conductivity, hardness, toughness, bending, the safety performance of the conductive components such as: weight...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00C22C9/00C22C9/02C22C1/02
CPCB23P15/00C22C9/00C22C9/02C22C1/02
Inventor 殷建伟周锡明殷志杰
Owner WUXI TONGWEI ELECTRIC POWER EQUIP
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