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Steel for copper-clad steel and method for producing the same

A technology of copper-clad steel and impurities, which is applied in the field of steel for copper-clad steel and its production, and can solve problems such as cracking, scale pressing, rolling slippage, etc.

Active Publication Date: 2011-12-07
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the current problems such as cracking, rolling slippage and iron scale pressing in the rolling process, and to provide a rolling process that is not prone to cracking and rolling slipping, and the oxide scale will not be pressed in. Steel for copper-clad steel with excellent performance and high electrical conductivity and production method thereof

Method used

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  • Steel for copper-clad steel and method for producing the same
  • Steel for copper-clad steel and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Steel for copper clad steel, its composition and weight percentage are: C: 0.01%, Si: 0.0083%, Mn: 0.12%, Als: 0.01%, P: 0.015%, S: 0.010%, the rest is iron and unavoidable of impurities.

[0028] The method for producing steel for copper clad steel, the steps:

[0029] 1) Smelting and continuous casting into billets;

[0030] 2) The components and weight percentages are C: 0.01%, Si: 0.0083%, Mn: 0.12%, Als: 0.01%, P: 0.015%, S: 0.010%, and the rest are iron and unavoidable impurities. Billet heating, the temperature of the heating section is controlled at 1120-1130°C, and the temperature of the soaking section is controlled at 1080-1090°C;

[0031] 3) Rough rolling is carried out on the high line, and the rolling start temperature is 1030-1040°C;

[0032] 4) Finish rolling is carried out on the high line, the controlled finish rolling inlet temperature is 895-900°C, and the controlled sizing temperature is 890-895°C;

[0033] 5) Spinning, the spinning temperature ...

Embodiment 2

[0038] Steel for copper clad steel, its composition and weight percentage are: C: 0.0097%, Si: 0.009%, Mn: 0.072%, Als: 0.008%, P: 0.011%, S: 0.008%, the rest is iron and unavoidable of impurities.

[0039] The method for producing steel for copper clad steel, the steps:

[0040] 1) Smelting and continuous casting into billets;

[0041] 2) The composition and weight percentage are: C: 0.0097%, Si: 0.009%, Mn: 0.072%, Als: 0.008%, P: 0.011%, S: 0.008%, and the rest are iron and unavoidable impurities. Slab heating, the temperature of the heating section is controlled at 1140-1150°C, and the temperature of the soaking section is controlled at 1095-1105°C;

[0042] 3) Rough rolling is carried out on the high line, and the rolling start temperature is 1045-1055 °C;

[0043] 4) Finish rolling is carried out on the high line, the controlled finish rolling inlet temperature is 905-910°C, and the controlled sizing temperature is 900-905°C;

[0044] 5) Spinning, the spinning temper...

Embodiment 3

[0049] Steel for copper clad steel, its composition and weight percentage are: C: 0.0086%, Si: 0.0081%, Mn: 0.096%, Als: 0.013%, P: 0.009%, S: 0.008%, the rest is iron and unavoidable of impurities.

[0050] The method for producing steel for copper clad steel, the steps:

[0051] 1) Smelting and continuous casting into billets;

[0052] 2) The composition and weight percentage are: C: 0.0086%, Si: 0.0081%, Mn: 0.096%, Als: 0.013%, P: 0.009%, S: 0.008%, and the rest are iron and unavoidable impurities. The billet is heated, the temperature of the heating section is controlled at 1190-1200°C, and the temperature of the soaking section is controlled at 1120-1130°C;

[0053] 3) Rough rolling is carried out on the high line, and the rolling start temperature is 1080-1090°C;

[0054] 4) Finish rolling is carried out on the high line, the controlled finish rolling entrance temperature is 915-920°C, and the controlled sizing temperature is 905-910°C;

[0055]5) Spinning, the spin...

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Abstract

The invention relates to copper clad steel and a production method thereof. The copper clad steel comprises the following components by weight percent: less than or equal to 0.01% of C, less or equal to 0.009%of Si, 0.05-0.12% of Mn, 0.008-0.015% of Als, less than or equal to 0.015% of P, less than or equal to 0.010% of S and the balance of iron and inevitable impurities. The production method comprises the following steps: smelting, performing continuous casting to obtain a billet; heating the continuous casting billet; performing rough rolling on a high-speed line; performing finish rollingon another high-speed line; silking; performing delay chilling on a Stelmor line; and performing air cooling to the room temperature for standby. The production method solves the problems of the existing SWRM6 wire rod that the work hardening of the wire rod is easy to cause, the electrical conductivity is low and the requirements of the high-end copper clad steel can not be met. The invention provides the copper clad steel product which has good cold workability and high electrical conductivity and completely meets the user requirement.

Description

technical field [0001] The invention relates to steel for cables and a production method thereof, in particular to steel for copper-clad steel and a production method thereof. Background technique [0002] Copper-clad steel is steel for communication cables, and its electrical conductivity directly determines the electrical conductivity of the product. It requires that the electrical conductivity should be above 15.8%, and the cold working performance should be particularly good, because the user gets the wire rod (generally 6.5mm in diameter) without intermediate annealing, and directly draws it to a diameter of 0.2mm, and it is not easy to harden when re-wired. Plasticity is better. Research in production practice shows that, in addition to the chemical composition of copper-clad steel affecting its cold workability, the rolling process also directly affects the cold workability of copper-clad steel. Due to the characteristics of the steel, problems such as cracking, rol...

Claims

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Application Information

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IPC IPC(8): C22C38/04C21D8/06
Inventor 帅习元吴杰桂美文陆在学程方武蒋跃东周勇赵隆崎
Owner 武汉钢铁有限公司
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