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Roller sleeve made of high-strength and high-thermal-conductivity copper alloy material and preparation method thereof

A high thermal conductivity, copper alloy technology, applied in the field of non-ferrous metals, can solve the problems of low strength, elongation, softening temperature, high thermal conductivity, elongation, softening temperature, low thermal conductivity, etc., to achieve good thermal conductivity and corrosion resistance. The effect of good sex and reasonable ingredients

Active Publication Date: 2022-03-18
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the copper-beryllium alloys used in domestic casting rolls are mainly high-beryllium copper alloys. High-beryllium-copper alloys have high strength, but relatively low elongation, softening temperature, and thermal conductivity; rate is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A high-strength and high-thermal-conductivity copper alloy roller sleeve in this embodiment has the following components: Ni: 2.2wt%, Be: 0.2wt%, Si: 0.2wt%, Mg: 0.07wt%, Ca: 0.04wt% , Ag: 0.01wt%, La: 0.1wt%, Co: 0.01wt%, Al: 0.1wt%, Cd: 0.1wt%, the balance is Cu and unavoidable impurities.

[0026] The steps of the preparation method of the high-strength and high-thermal-conductivity copper alloy material roll sleeve of the present embodiment are as follows:

[0027] Step 1, each raw material is prepared according to the mass percentage of each component after grinding the scale, and the equipped Ni, Cu-3.8Be master alloy, Cu-4.5Ca master alloy, Cu-20La master alloy, Si, Co, Al, Cd, Ag and Cu were added into the vacuum melting furnace, and argon gas was passed into the vacuum melting furnace after vacuuming, and then an electric current was applied to raise the temperature to 310° C. for 2 minutes. Then, after magnesium is added to the vacuum melting furnace, the tem...

Embodiment 2

[0037] A kind of high-strength and high-thermal-conductivity copper alloy roll sleeve of the present embodiment, its component content is:

[0038] Ni: 2.2wt%, Be: 0.4wt%, Si: 0.4wt%, Mg: 0.12wt%, Ca: 0.07wt%, Ag: 0.03wt%, La: 0.2wt%, Co: 0.02wt%, Al: 0.3wt%, Cd: 0.3wt%, the rest is Cu and unavoidable impurities.

[0039] The steps of the preparation method of the high-strength and high-thermal-conductivity copper alloy material roll sleeve of the present embodiment are as follows:

[0040] Step 1, each raw material is prepared according to the mass percentage of each component after grinding the scale, and the equipped Ni, Cu-3.8Be master alloy, Cu-4.5Ca master alloy, Cu-20La master alloy, Si, Co, Al, Cd, Ag and Cu were added into the vacuum melting furnace, and argon gas was passed into the vacuum melting furnace after vacuuming, and then an electric current was applied to raise the temperature to 310° C. for 2.5 minutes. Then, after magnesium was added to the vacuum melti...

Embodiment 3

[0048] A high-strength and high-thermal-conductivity copper alloy roller sleeve provided in this embodiment has the following components: Ni: 2.4wt%, Be: 0.6wt%, Si: 0.6wt%, Mg: 0.17wt%, Ca: 0.10wt% %, Ag: 0.05wt%, La: 0.3wt%, Co: 0.03wt%, Al: 0.5wt%, Cd: 0.5wt%, and the rest are Cu and unavoidable impurities.

[0049] The steps of the preparation method of the high-strength and high-thermal-conductivity copper alloy roll sleeve provided in this embodiment are as follows:

[0050] Step 1, each raw material is prepared according to the mass percentage of each component after grinding the scale, and the equipped Ni, Cu-3.8Be master alloy, Cu-4.5Ca master alloy, Cu-20La master alloy, Si, Co, Al, Add Cd, Ag and Cu into the vacuum melting furnace, and then pass argon gas into the vacuum melting furnace after vacuuming, and then pass the electric current to raise the temperature to 310°C and keep it for 3 minutes. Then, after magnesium was added to the vacuum melting furnace, the t...

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Abstract

The invention discloses a high-strength and high-thermal-conductivity copper alloy material roller sleeve and its preparation method, which is composed of the following components in mass percentage: Ni: 2.2wt% to 2.6wt%, Be: 0.2wt% to 0.6wt%, Si: 0.2 wt%~0.6wt%, Mg: 0.07wt%~0.17wt%, Ca: 0.04wt%~0.10wt%, Ag: 0.01wt%~0.05wt%, La: 0.1wt%~0.3wt%, Co: 0.01 wt%-0.03wt%, Al: 0.1wt%-0.5wt%, Cd: 0.1wt%-0.5wt%, and the balance is Cu. The present invention obtains a high-strength and high-thermal-conductivity Cu-Be alloy material with excellent comprehensive performance through the solid solution strengthening and microalloying of Ni to refine the structure and the second phase.

Description

technical field [0001] The invention relates to the technical field of nonferrous metals, in particular to a high-strength and high-thermal-conductivity copper alloy roll sleeve and a preparation method thereof. Background technique [0002] A cast-rolling machine with excellent performance is the technical guarantee for continuous casting and rolling of metal strips, and the roll sleeve of the casting-rolling machine is a key component that determines the performance of the casting-rolling machine. In the industrial casting and rolling process, the casting roll plays the dual role of crystallizer and hot rolling roll. The roll sleeve is on the outer layer of the casting roll, which is in contact with the liquid metal. This requires the roll sleeve material to have excellent thermal conductivity, strength, hardness, and heat resistance. Fatigue and corrosion resistance. The traditional casting roll sleeve material is medium and low carbon alloy steel containing Cr, Ni, Mo, ...

Claims

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Application Information

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IPC IPC(8): C22C9/06C22C1/03C22F1/08B22D11/06
CPCC22C9/06C22C1/03C22F1/08B22D11/0637
Inventor 赵红亮董祥雷范宇恒许永恒王丹洪振宇翁康荣
Owner ZHENGZHOU UNIV
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