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Copper bar continuous casting and tandem rolling production method

A continuous casting and rolling, production method technology, applied in the direction of metal rolling, furnace type, furnace, etc., to achieve uniform copper material, improve production efficiency, and complete oxidation

Inactive Publication Date: 2010-02-10
嘉兴市龙泉铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no ideal process integrating casting copper and copper rod preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] First set the copper reverberatory furnace at 1145°C. Then, add copper raw material to 1145 ℃ 80 tons reverberatory furnace at the speed of 8 tons per hour. After all the raw materials are added to the reverberatory furnace, the temperature of the furnace reaches 1150-1170°C, and air is introduced for 30 minutes to melt the raw materials and oxidize them at the same time. After 2 hours, the liquid copper was reduced with wood at 1200°C for 2 hours. Copper was tapped and casted at a temperature of 1120°C. Use water with a temperature lower than 40°C to cool down the cast copper to 850°C, so that the copper crystallizes out of the ingot. Finally, at a temperature of 850°C and a rolling mill speed of 1200 r / min, it is rolled into a copper rod. After testing, the resistivity of the prepared copper wire conductor at 20°C is 0.017200Ωmm 2 / m (soft state), the elongation of copper wire is 4%, and the tensile strength of copper wire is 450N / mm 2 . The resulting product is...

Embodiment 2

[0021] First set the copper reverberatory furnace at 1145°C. Then, add copper raw material to 1145 ℃ 80 tons reverberatory furnace at the speed of 8 tons per hour. After all the raw materials are added to the reverberatory furnace, the temperature of the furnace reaches 1150-1170°C, and air is introduced for 30 minutes to melt the raw materials and oxidize them at the same time. After 2 hours, the liquid copper was reduced with wood at 1250°C for 1.5 hours. Copper was tapped and casted at a temperature of 1130°C. Use water with a temperature lower than 40°C to cool down the cast copper to 880°C, so that the copper crystallizes out of the ingot. Finally, at a temperature of 880°C and a rolling mill speed of 1320 rpm, it is rolled into a copper rod. After testing, the resistivity of the prepared copper wire conductor at 20°C is 0.017200Ωmm 2 / m (soft state), the elongation of copper wire is 4%, and the tensile strength of copper wire is 450N / mm 2 . The resulting product is...

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Abstract

The invention relates to a copper bar continuous casting and tandem rolling production method which comprises the steps: adding copper raw material into a reflecting furnace with the temperature of 1145 DEG C at the speed of 8t / h; after that, filling air for 30min for oxidation when the temperature of copper reaches 1150-1170 DEG C; using timber to deoxidate liquid copper for 1.5-2h at the temperature of 1200-1250 DEG C; under the condition of 1120-1130 DEG C, outputting copper and casting; after the crystallizing the copper and producing ingots at 850-880 DEG C, rolling copper bars at the rotating speed 1200r / min-1320r / min of a rolling mill. The method can control the temperature in the production process of copper bar continuous casting and tandem rolling, and improves the product quality and the production efficiency.

Description

technical field [0001] The invention relates to a copper rod continuous casting and rolling production method. Background technique [0002] The melting point of metal copper is 1083 degrees, and the smelting and casting of copper needs to be carried out at high temperature. In the process of copper preparation, the change of temperature has a great difference in the quality of the final copper, thus affecting the performance of copper products, such as copper rods. [0003] The production process of copper involves multiple steps such as melting, oxidation and reduction, and the conditions used in these steps also play a key role in the quality of copper. At present, there is no ideal process integrating copper casting and copper rod preparation. Contents of the invention [0004] An object of the present invention is to provide a copper rod continuous casting and rolling production method to improve product quality and production efficiency. [0005] A kind of copper ...

Claims

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Application Information

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IPC IPC(8): B21B1/46B21B37/74B21B37/46C22B15/04B22D7/00
Inventor 徐建良王春良王月根张新华喻文宝
Owner 嘉兴市龙泉铜业有限公司
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