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Method and device for non-vacuum horizontal continuous casting of easily oxidized alloy element containing copper alloy

An alloy element and horizontal continuous casting technology is applied to the non-vacuum horizontal continuous casting of copper alloys, the non-vacuum horizontal continuous casting method and the device field of copper alloys containing easily oxidized alloy elements, and can solve the problems of low production efficiency and investment in vacuum melting equipment. Problems such as large, equipment and methods are rarely mentioned

Active Publication Date: 2009-12-30
苏州中色华人铜业有限公司
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  • Application Information

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Problems solved by technology

[0003] At present, the vacuum melting method is generally used in the preparation of Cu-Cr-Zr and CuTi alloys in industrial production. The following problems exist in the vacuum preparation production mode: ①The investment in vacuum melting equipment is large, and the equipment occupies a large area; ②Using vacuum equipment for semi-continuous Casting, the casting process requires vacuum, the production efficiency is low, and it is not suitable for large-scale production, which limits the industrial production and application of alloys such as Cu-Cr-Zr
[0004] In recent years, the non-vacuum technology of Cu-Cr-Zr and CuTi alloys has also been studied in China, and related reports and patents have also emerged one after another, but there are few mentions of equipment and methods for industrialized large-scale production (such as> 1t melting furnace)

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  • Method and device for non-vacuum horizontal continuous casting of easily oxidized alloy element containing copper alloy

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Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1: Non-vacuum preparation of CuCrZr alloy

[0023] First put the electrolytic copper into the intermediate frequency coreless induction melting furnace 1 to heat, cover with charcoal, add Cr or CuCr intermediate alloy when the electrolytic copper is partially melted, continue heating until the metal is completely melted, and raise the temperature to 1200 ° C ~ 1400 ° C to remove oxygen and form slag , sampling analysis, after the Cr element content reaches the standard, the melt is transferred to the intermediate frequency induction holding furnace 2 through the launder 8;

[0024] While the melt is transferred from the launder 8 into the intermediate frequency induction holding furnace 2, the easy-to-oxidize alloy elements (such as Zr, Mg, Si, Ti, etc.) Induction holding furnace 2, protective gas is also passed into the refractory protective cover 4 on the outer layer of the graphite tube to prolong its service life, heat preservation and heating to make the...

Embodiment 2

[0026] Embodiment 2: Non-vacuum preparation of CuTi alloy

[0027] Put the electrolytic copper into the intermediate frequency coreless induction melting furnace 1 to heat, cover with charcoal, wait until the electrolytic copper is completely melted, raise the temperature to 1200℃~1400℃, and transfer the melt to the intermediate frequency induction holding furnace through launder 8 after deoxidizing and slagging 2 in.

[0028] While the melt is transferred from the launder 8 into the intermediate frequency induction holding furnace 2, the easily oxidizable alloy element Ti or CuTi alloy with a good ratio is continuously sent into the intermediate frequency induction holding furnace 2 through the graphite tube 3 filled with a protective atmosphere. Protective gas is also passed into the refractory material protective cover 4 of the outer layer to prolong its service life, and heat preservation and heating make the melt temperature between 1100°C and 1300°C;

[0029] Sampling a...

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Abstract

The invention relates to a method and a device for non-vacuum horizontal continuous casting of an easily oxidized alloy element containing copper alloy. The device comprises an intermediate frequency coreless induction melting furnace, an intermediate frequency induction heat preserving furnace and a crystallizer, wherein an easily oxidized alloy element feeding device is arranged above the intermediate frequency induction heat preserving furnace. The preparation method comprises the following steps of: adding raw materials in the intermediate frequency coreless induction melting furnace for temperature rise, covering charcoal on the raw materials, heating up the raw materials after melting to the temperature of between 1,200 and 1,400 DEG C, transferring the melt to the intermediate frequency induction heat preserving furnace by a launder after removing oxygen and making slag, introducing protection gas in the launder and the intermediate frequency induction heat preserving furnace, and covering the charcoal on the melt in the heat preserving furnace; when the melt is transferred, simultaneously transferring easily oxidized alloy elements to the intermediate frequency induction heat preserving furnace by a graphite tube in which the protection gas is filled, introducing the protection gas in a protection cover on the periphery of the graphite tube, and controlling the temperature of the melt to be between 1,100 and 1,300 DEG C; and carrying out horizontal continuous casting, and carrying out the secondary alloying when the casting process is over 30 minutes to realize the non-vacuum horizontal continuous casting of the easily oxidized alloy element containing copper alloy.

Description

technical field [0001] The invention relates to a non-vacuum horizontal continuous casting method for copper alloys, in particular to a non-vacuum horizontal continuous casting method and a device for copper alloys containing easily oxidizable alloy elements, and belongs to the technical field of non-ferrous metal preparation. Background technique [0002] Certain copper alloys containing easily oxidizable alloying elements, such as Cu-Cr-Zr and CuTi alloys, have excellent properties. Cu-Cr-Zr alloy has the characteristics of high strength and high conductivity, and can be applied to electronic lead frames, electrified railway locomotive wires, large crystallizers, etc., and has a good market prospect; CuTi alloy has extremely high strength and elastic properties. It is an ideal high-strength, high-elastic and environmentally friendly copper alloy material. [0003] At present, the vacuum melting method is generally used in the preparation of Cu-Cr-Zr and CuTi alloys in ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/045
Inventor 李华清向朝建陈忠平朱永兵
Owner 苏州中色华人铜业有限公司