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Non-vacuum smelting method of CuCrZr alloy

A non-vacuum smelting, copper-chromium-zirconium technology is applied in the field of smelting copper alloy materials, which can solve the problems of restricting the mass production, promotion and application of copper-chromium-zirconium alloy materials, and achieve the effect of improving production efficiency and reducing costs.

Inactive Publication Date: 2010-12-08
JIUXING HLDG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Seriously restrict the mass production, popularization and application of copper-chromium-zirconium alloy materials

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0016] The non-vacuum smelting process technology of CuCrZr alloy of the present invention is carried out according to the following steps:

[0017] 1) Make CuCr / CuZr intermediate alloys from easily oxidizable elements such as Cr and Zr, and use them as raw materials for subsequent addition.

[0018] 2) Select 1.25 tons of standard cathode copper that meets the quality requirements, add it to a 1.5-ton intermediate frequency induction furnace, and add 12.8 kg of dehydrated borax and glass as a covering agent, wherein the weight ratio of dehydrated borax and glass is set to 2: 1, Melt the electrolytic copper, and cover the copper melt with a covering agent to avoid direct contact with the air; raise the temperature of the molten copper water to about 1400°C, add 28.5kg of CuCr master alloy, melt it, and then The chemical composition of Cr was sampled and analyzed, and the weight ratio of the standard ingredients was set at about 1.0%. After the element sampling was qualified, w...

Embodiment 2

[0020] The non-vacuum smelting process technology of CuCrZr alloy of the present invention is carried out according to the following steps:

[0021] 1) Make CuCr / CuZr intermediate alloys from easily oxidizable elements such as Cr and Zr, and use them as raw materials for subsequent addition.

[0022] 2) Select 1.25 tons of standard cathode copper that meets the quality requirements, add it to a 1.5-ton intermediate frequency induction furnace, and add 12.8 kg of dehydrated borax and glass as a covering agent, wherein the weight ratio of dehydrated borax and glass is set to 2: 1, Melt the electrolytic copper, and cover the copper melt with a covering agent to avoid direct contact with the air; raise the temperature of the molten copper water to about 1400°C, add 25.8kg of CuCr master alloy, melt it, and then The chemical composition of Cr was sampled and analyzed, and the weight ratio of the standard ingredients was set at about 1.0%. After the element sampling was qualified, w...

Embodiment 3

[0024] The non-vacuum smelting process technology of CuCrZr alloy of the present invention is carried out according to the following steps:

[0025] 1) Make CuCr / CuZr intermediate alloys from easily oxidizable elements such as Cr and Zr, and use them as raw materials for subsequent addition.

[0026] 2) Select 1.25 tons of standard cathode copper that meets the quality requirements, and add it to a 1.5-ton medium-frequency induction furnace, and add 14 kg of dehydrated borax and glass as a covering agent, wherein the weight ratio of dehydrated borax and glass is set to 2: 1. The electrolytic copper is melted, and the covering agent is covered on the copper melt to avoid direct contact with the air; the temperature of the molten copper water is raised to about 1400°C, and 29.5kg of CuCr master alloy is added to melt it, and then take a sample The chemical composition of Cr was analyzed, and the weight ratio of the standard ingredients was set at about 1.0%. After the element sa...

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Abstract

The invention relates to a non-vacuum smelting method of a CuCrZr alloy, which is characterized by comprising the following steps of: manufacturing Cr and Zr into an intermediate alloy CuCr and an intermediate alloy CuZr to be used as the intermediate alloy addition materials for later use; sequentially adding electrolytic copper, an antioxidant and the intermediate alloy CuCr into an induction furnace according to the proportion in parts by weight in batches, electrifying to melt for 1 hour, and then increasing the temperature to 1400 DEG C to completely melt the mixture; then adding the intermediate alloy CuZr, then increasing the temperature to 1400 DEG C, pouring after being completely melted, covering a crystallizer with carbon black when pouring to obtain the CuCrZr alloy after finishing pouring. The invention solves the problems of complicated process, overhigh production cost and low production efficiency existing in traditional vacuum fusion casting process production, the input cost of non-vacuum fusion casting equipment is only about 1 / 10 as much as that of vacuum fusion casting equipment, and the production efficiency thereof is more than three times as much as that of a vacuum furnace with the same capacity.

Description

technical field [0001] The invention relates to a method for smelting copper alloy materials, in particular to a method for producing Cu-Cr-Zr alloys under atmospheric conditions by means of induction furnace smelting and semi-continuous casting, belonging to the technical field of nonferrous metal alloy smelting . Background technique [0002] CuCrZr alloy belongs to precipitation hardening copper alloy, which has excellent comprehensive properties such as high strength, high electrical conductivity, and high softening temperature. Crystallization equipment, etc., have a very large market potential, and casting this alloy material is the first process to produce this alloy material (wire, rod, plate, etc.). [0003] In the production of CuCrZr alloy, due to the high chemical activity of the alloying elements Cr and Zr, the vacuum casting process is generally used in domestic production. However, this process method has some disadvantages, not only the process is complicat...

Claims

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Application Information

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IPC IPC(8): C22C1/03C22C9/00
Inventor 李文君刘刚王瑛
Owner JIUXING HLDG GRP
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