发明名称 |
PRODUCTION OF SEAMLESS HOT-ROLLED PIPES SIZED TO 610×28-32×5300-6000 mm FROM 15?1?1?- AND 10?9???-?-GRADE STEELS FOR PIPELINES OF BOILER UNIT STEAM INTERMEDIATE OVERHEATING |
摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to production of pipes for pipelines of boiler unit intermediate steam overheating. ESR process is used to smelt hollow ingots to be bored and turned to 720×ID.560×3200±50 mm-ingots. Ingots-billets are heated to ductility temperature and rolled at PRU 8-16'' with Pilger mill to commercial pipes at rolls with body diameter of 1150 mm and groove of 620 mm at diameter reduction of 11.4% and rolling-out ? of 2.01-2.29.EFFECT: lower metal input, higher precision of geometrical sizes.8 cl, 2 tbl |
申请公布号 |
RU2527523(C2) |
申请公布日期 |
2014.09.10 |
申请号 |
RU20120155470 |
申请日期 |
2012.12.19 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "CHELJABINSKIJ TRUBOPROKATNYJ ZAVOD" |
发明人 |
SAF'JANOV ANATOLIJ VASIL'EVICH;FEDOROV ALEKSANDR ANATOL'EVICH;VORONIN ANATOLIJ ANDREEVICH;DUB ALEKSEJ VLADIMIROVICH;OSADCHIJ VLADIMIR JAKOVLEVICH;SKOROBOGATYKH VLADIMIR NIKOLAEVICH;GOLOVINOV VALERIJ ALEKSANDROVICH;PASHNIN VLADIMIR PETROVICH;BARICHKO VLADIMIR SERGEEVICH;KLIMOV NIKOLAJ PETROVICH;MATJUSHIN ALEKSANDR JUR'EVICH;BUBNOV KONSTANTIN EHDUARDOVICH;SAF'JANOV ALEKSANDR ANATOL'EVICH;EREMIN VIKTOR NIKOLAEVICH |
分类号 |
B21B21/00 |
主分类号 |
B21B21/00 |
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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