| 发明名称 |
PRODUCTION OF SEAMLESS COLD-RESISTANT AND NONCORROSIVE 377×9-16 mm PIPES AT PRU WITH PILGER MILLS |
| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to pipe rolling. Continuously cast 530×100×1750±25 mm and 550×100×1850±25 mm billets are heated to 1260-1280°C, pierced at helical rolling mills at 375mm-dia mandrels to size of outer diameter with rolling-out µ=1.88-1.90 to 550xID390×3250-3350 mm and 550xID390×3440-3540 mm sleeves. Said sleeved are rolled to 377×9-11×27000-33000 mm pipes of triple length and 377×12-16×20000-25000 mm of double length and rolling-out µ=6.51-10.24 mm with feed of said sleeves to strain sources m=15-23 mm.EFFECT: decreased metal input and working hours of repair.1 tbl |
| 申请公布号 |
RU2541228(C2) |
申请公布日期 |
2015.02.10 |
| 申请号 |
RU20130124794 |
申请日期 |
2013.05.28 |
| 申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "CHELJABINSKIJ TRUBOPROKATNYJ ZAVOD" |
发明人 |
SAF'JANOV ANATOLIJ VASIL'EVICH;FEDOROV ALEKSANDR ANATOL'EVICH;VORONIN ANATOLIJ ANDREEVICH;OSADCHIJ VLADIMIR JAKOVLEVICH;GOLOVINOV VALERIJ ALEKSANDROVICH;PASHNIN VLADIMIR PETROVICH;KLIMOV NIKOLAJ PETROVICH;BARICHKO VLADIMIR SERGEEVICH;MATJUSHIN ALEKSANDR JUR'EVICH;BUBNOV KONSTANTIN EHDUARDOVICH;SAF'JANOV ALEKSANDR ANATOL'EVICH;EREMIN VIKTOR NIKOLAEVICH;CHEBOTOV ALEKSANDR JUR'EVICH |
| 分类号 |
B21B21/00 |
主分类号 |
B21B21/00 |
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