Method for non-vacuum melting and casting Cu-Cr-Zr alloy

A non-vacuum smelting, cu-cr-zr technology, used in ingot workshops, foundry workshops, casting equipment, etc., can solve the problem of high requirements for raw material composition and impurity content, inability to perform composition measurement, composition adjustment, and furnace body sealing To solve problems such as high sexual requirements, achieve the effect of realizing large-scale production, solving the problem of high cost, and solving the difficulty of large-scale production
CN1865467AInactive Publication Date: 2006-11-22CHINA NON-FERROUS METALS PROCESSING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA NON-FERROUS METALS PROCESSING TECH CO LTD
Publication Date
2006-11-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a melting and casting Cu-Cr-Zr alloy method, which comprises the following steps: loading electrolytic copper, cupraloy and metal zirconium in the protective gas induction furnace; fusing; casting from bottom; connecting lower cast hole and crystallizer with gas protecting device. The whole course is protected by pure gas with low hydrogen and oxygen partial pressure, which provides good quality casting ingot.
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Description

technical field

[0001] The invention relates to the processing of Cu-Cr-Zr alloys, in particular to methods for smelting and casting Cu-Cr-Zr alloys, and belongs to the technical field of nonferrous metal processing. Background technique

[0002] The traditional processing method of Cu-Cr-Zr alloy is to mix the electrolytic copper and other alloying elements in proportion and put them into the vacuum furnace. -3 The heating and smelting starts below the Pa, and the casting is directly carried out in a vacuum furnace after the smelting is completed. This smelting method, due to the high vacuum in the furnace, the gas partial pressure of oxygen is extremely low, which kinetically prevents the oxidation and burning of the smelted metals (Cu, Cr and Zr). During the smelting process, the copper melt contains a certain amount of oxygen and hydrogen, and a large chemical potential is generated between the inside of the melt and the smelting environment due to the concentration gra...

Claims

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