FIELD: process engineering.
SUBSTANCE: set of invention relates to production of long-length sandwiched bimetal large-diameter pipes. This process comprises crosswise welding of bimetal pipe billets. Bimetal pipes-billets are produced by winding of bimetal sheets-strips with clad outer and/or inner plies on spinning drum-spool. Length of said sheets-strips is defined by mathematical relationships. After winding, the ends are welded together over the radius. After removal from drum-spool, sheet-strip end is subjected to lengthwise welding as well as inner edge, sheet-strip seed end. Proposed plant comprises drum-spool, weld assembly, welding and milling section, drive and other required equipment. Note here that groove is made over drum-spool OD of specified geometrical sizes.
EFFECT: ruled out avalanche destruction, lower metal input, higher ecological safety.
11 cl
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|---|---|---|---|
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|
RU2567420C2 |
| PRODUCTION OF BILLETS WITH OUTER AND INNER PLATING PLIES FROM CORROSION-RESISTANT STEELS AND ALLOYS FOR PRODUCTION OF SEAMLESS THREE-LAYER HOT- AND COLD-ROLLED COMMERCIAL AND REROLLED LONGER-LIFE PIPES FOR GAS AND GAS CONDENSATE EXTRACTION IN HYDROGEN SULPHIDE-BEARING MEDIA, ITS TRANSPORTATION AND GENERAL PURPOSE PIPES | 2013 |
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| PRODUCTION OF "вн.279×36 (351×36)" AND "вн. 346×40" (426×40) mm PIPES FOR NUCLEAR POWER STATIONS FROM "10ГН2МФА" AND "08Х18Н10Т" GRADE STEELS WITH 7 mm INNER CLAD PLY | 2013 |
|
RU2542129C2 |
| PRODUCTION OF BIMETAL "T=279×36" (351×36) mm PIPES WITH INNER PLATING LAYER FROM "10ГН2МФА"- AND "08X18H10T"-GRADE STEELS FOR NUCLEAR POWER PLANT STRUCTURES | 2012 |
|
RU2523382C2 |
