发明名称 |
METHOD OF PRODUCING LARGE-SIZE ANNULAR SEMIS FROM WROUGHT ALUMINIUM ALLOYS |
摘要 |
FIELD: process engineering.SUBSTANCE: invention may be used in machine building for producing all-rolled large-size annular semis from wrought aluminium alloys. Casting of produced by spun casting in medium of inert gas. Melt is fed into mould at maximum possible throughput weight of 1-4% a second at casting start and 0.02-0.08% of total casting weight at casting termination. Said throughput weight is gradually decreased inversely as carting time while mould rotation speed is smoothly increased of 0.4-6.0% a minute of initial speed. Casting is subjected to two-stage flattening. At first stage, reduction by 5-10% in every pass at total deformation of 25-30% is performed. At second stage, reduction is increased by 15-20% in every pass at total deformation of 65-70%.EFFECT: semis with better mechanical low-anisotropy properties.2 ex, 2 tbl |
申请公布号 |
RU2487776(C1) |
申请公布日期 |
2013.07.20 |
申请号 |
RU20120112660 |
申请日期 |
2012.04.03 |
申请人 |
SHANIN NIKOLAJ DMITRIEVICH |
发明人 |
TARARYSHKIN VIKTOR IVANOVICH;EREMEEV VLADIMIR VIKTOROVICH;EREMEEV NIKOLAJ VLADIMIROVICH;SHANIN NIKOLAJ DMITRIEVICH;SOLOV'EV ALEKSANDR PETROVICH |
分类号 |
B21H1/06;B22D13/02 |
主分类号 |
B21H1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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