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Manufacturing method of high performance antioxidation environmental protection copper raft

A manufacturing method and anti-oxidation technology, applied in the direction of manufacturing tools, other manufacturing equipment/tools, etc., can solve the problems of consumption of non-ferrous metal raw materials, poor bending performance of products, poor working environment, etc., and achieve saving of non-ferrous metal resources and electrical conductivity Good, good heat dissipation effect

Inactive Publication Date: 2006-01-11
江阴市汇金铜业有限公司
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Problems solved by technology

The disadvantage is that the working environment of the workers is poor and the surface quality is slightly poor
[0008] The advantage of the second method is that the surface quality is slightly better and the working environment of workers is improved, but the bending performance of the product is not as good as the former
However, tin plating is a process with high cost, and consumes non-ferrous metal raw materials, and more importantly, it will cause a series of environmental protection and unfriendly problems

Method used

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  • Manufacturing method of high performance antioxidation environmental protection copper raft

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Embodiment

[0034] Embodiment: The manufacturing method of the high-performance anti-oxidation environment-friendly copper bar of the present invention comprises the following steps:

[0035] Take 5mm×80mm×5500mm bright copper bar as an example:

[0036] Step 1, continuous casting of ingots of 120mm×280mm. Place well-known brands of domestic electrolytic copper or imported Chilean copper in a submerged conjoined low-frequency induction furnace with a capacity of one ton per hour. The crystallizer is made of graphite, covered with roasted dry charcoal and dace flake graphite, and the casting temperature is 1140-1160 °C , Casting speed (15-18) m / h.

[0037] Step two, water seal extrusion. The product size after water seal extrusion is 7.3mm×83.3mm. Put the ingot obtained in step 1 into the extrusion die, and extrude it on a 800-ton double-acting hydraulic press with a water seal at an extrusion temperature of 850-900°C. In order to ensure the surface quality and dimensional stability of ...

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Abstract

A method for preparing the high-performance antioxidizing copper bus includes such steps as smelting electrolytic copper in LF induction furnace with graphite crystallizer and charcoal covering, casting, water-sealing extruding, acid washing for neutralizing, washing with hot water, rough drawing, removing surfacial skin, brightening annealing in the mixture of N2, and H2, and fine drawing.

Description

Technical field: [0001] The invention relates to a method for manufacturing a high-performance anti-oxidation environment-friendly electrical copper bar with a bright surface, which can maintain the brightness for a long period of time and has excellent bending properties. Background technique: [0002] Electrical copper bars are generally used to conduct large currents, and are suitable for the manufacture of motor windings, high and low voltage electrical appliances, switch contacts, power distribution equipment and other electrical engineering, and are indispensable conductive materials for installation wires. It is also widely used in ultra-high current electrolytic smelting projects such as metal smelting, metal electrolysis, electroplating, and chemical caustic soda. There are GB5585-85 requirements, such as resistivity at 20 °C ≤ (0.01724Ω.mm 2 / m), and has a variety of sizes and specifications. Generally speaking, electrical copper bars have the advantages of low re...

Claims

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Application Information

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IPC IPC(8): B23P23/04
Inventor 赵仁才
Owner 江阴市汇金铜业有限公司
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