FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy and may be used for making bars and tubular blanks of whatever shape. Proposed method comprises melting copper at 1084°C with copper surface coated by burnt charcoal layer and carbon monoxide atmosphere above the melt. Then, copper is refined and reduced at 1180-1200°C to oxygen content of not over 8 ppm. Melt temperature and chemical composition are stabilised to extract light-end products of the reaction. Casting is performed through graphite casing mould with stepwise drawing of article. Rate, step and frequency of steps are calculated subject to type of articles to be cast. Cast products are prepared for further transportation and storage.
EFFECT: higher quality, better operating properties of cast parts.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF COMBINED CASTING AND ROLLING OF COPPER ALLOYS OF COPPER SCRAP | 2013 |
|
RU2637454C1 |
| METHOD FOR CONTINUOUS HORIZONTAL CASTING, AN INSTALLATION TO IMPLEMENT THE METHOD, MULTI-STRAND CRYSTALLIZER, PULLING DEVICE AND A COILER TO WIND UP AN INGOT INTO BUNDLES FOR THE INSTALLATION | 1993 |
|
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| METHOD FOR MANUFACTURING CAST BILLETS FROM ANTIFRICTION BRONZE | 2021 |
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| METHOD FOR SEMI-CONTINUOUS CASTING OF INGOTS FROM ALUMINUM ALLOYS | 2018 |
|
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| METHOD FOR COMBINED CONTINUOUS CASTING AND ROLLING OF COPPER ALLOYS | 1999 |
|
RU2163855C2 |
| METHOD OF MANUFACTURING TUNGSTEN OF HIGH PURITY | 2007 |
|
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| CRYSTALLISER FOR MODIFIER INGOT HORIZONTAL CASTING | 2009 |
|
RU2428275C2 |
| METHOD OF CONTINUOUS CAST COPPER BILLET MANUFACTURING FOR ELECTROTECHNICAL PURPOSES AND TECHNOLOGICAL COMPLEX FOR ITS IMPLEMENTATION | 2018 |
|
RU2688103C1 |
