Smelting and updraft continuous casting process of Cu-Cr-Zr alloy

A continuous casting process, copper-chromium-zirconium technology, which is applied in the field of continuous casting integration and copper-chromium-zirconium alloy smelting. Production costs and other issues, to achieve the effect of excellent air tightness

Active Publication Date: 2010-01-06
苏州中色华人铜业有限公司
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Problems solved by technology

[0003] There are two main smelting processes for copper-chromium-zirconium alloys at present. One is vacuum melting + extrusion process. Due to the inherent structure of vacuum induction furnace, its production method is limited to products with periodic operations, and the casting weight of a single piece or The length is limited by the capacity of the crucible, so it is impossible to prod

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  • Smelting and updraft continuous casting process of Cu-Cr-Zr alloy

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[0015] Hereinafter, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments. However, the present invention is not limited to the examples given.

[0016] In this embodiment, the C18150 alloy produced according to the ASTM standard (the specification of the lead-cast copper-chromium-zirconium wire rod is Φ20mm) is taken as an example for description.

[0017] Chemical composition of C18150 alloy:

[0018] Cr Zr Fe Si Pb Cu

[0019] 0.50~1.50 0.05~0.25 ≤0.10 ≤0.10 ≤0.05 margin

[0020] Raw material ratio: Cr: 0.9%, Zr: 0.1%, Cu: balance

[0021] The smelting and upward continuous casting process of the copper-chromium-zirconium alloy of the present invention uses equipment such as figure 1 As shown, including: melting furnace 1, casting furnace 16, traction casting equipment, melting furnace 1 and casting furnace 16 have sealing covers 17, 18 and charging ports 5, 7 (in this example, the charging port is provided on the s...

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Abstract

The invention discloses an updraft continuous casting process of Cu-Cr-Zr alloy bar materials with high strength, high conductivity and high softening temperature, mainly adopting a smelting furnace with non-vacuum and low-furnace pressure tightness, a casting furnace and an updraft device. The invention adopts an updraft continuous casting device and technique under the condition of non-vacuum, realizes continuous production of Cu-Cr-Zr alloy bars, is not affected by the capacity of a furnace body, and can produce Cu-Cr-Zr alloy bar materials with any lengths. Obtained products are important raw materials for producing copper alloy products with high strength and high conductivity, such as contact lines of high-speed trains, spot-welding electrodes, current contact nozzles, lead frames, motor conducting bars, and the like.

Description

technical field [0001] The invention relates to a high-strength, high-conductivity, high-softening-temperature copper-chromium-zirconium alloy smelting, upward continuous casting integrated technology, especially under the condition of non-vacuum and low furnace pressure, the upward continuous casting equipment is adopted, Production of copper-chromium-zirconium alloy wire rods of any length. Background technique [0002] As a high-strength, high-conductivity, high-softening temperature alloy material, copper-chromium-zirconium alloy has been widely used in many important fields of the national economy due to its excellent performance. This material is based on copper, and metal chromium and metal zirconium are added. Because chromium and zirconium have a strong affinity with oxygen under high-temperature melting and casting conditions, they are easily oxidized and volatilized during the melting and casting process, so the production is more difficult. Generally, vacuum mel...

Claims

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Application Information

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IPC IPC(8): B22D11/14B22D11/11B22D11/116B22D11/16
Inventor 张京祁全洪关百香
Owner 苏州中色华人铜业有限公司
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