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

A continuous casting process, a copper-chromium-zirconium technology, is applied in the field of upward continuous casting equipment, which can solve the problems of difficult control of alloy composition, inability to produce products with large weight or theoretically infinite length, and inability to produce production costs, etc. The effect of air tightness

Active Publication Date: 2011-04-27
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 produce a product with a large weight or a theoretically unlimited length, and the production cost is high; the other is a non-vacuum melting + continuous casting + extrusion process, and its disadvantage is that the composition of the alloy is difficult to control. And like the process of vacuum smelting + extrusion, it cannot produce products with larger weight or theoretically infinite length

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

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Embodiment Construction

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

[0016] This embodiment is described by taking the C18150 alloy produced according to the ASTM standard (the specification of cast copper-chromium-zirconium wire rod is Φ20mm) as an example.

[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 copper-chromium-zirconium alloy of the present invention, the equipment used in this process is as follows: figure 1 Shown, comprise: smelting furnace 1, casting furnace 16, traction casting equipment, smelting furnace 1 and casting furnace 16 have sealing cover 17,18 and feeding port 5,7 (in this example, charging port is arranged on sealing cover, a...

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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 importantraw 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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Patent Type & Authority Patents(China)
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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