FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy. ESR ingots are cast and turned to ingots-billets of 470×1540 mm. Through central 100±5 mm-dia bore is drilled therein. Blanks are heated to ductility temperature and pierced at screw rolling stand to sleeves-blanks. The latter are rolled to hot-formed rerolled pipe billets. Said pipes are straightened and cut to two billets. The latter are bored and turned. Pipe billets of 325×12 mm are rolled at "ХПТ450" and "ХПТ250" mills while pipes-billets are rolled at "ХПТ250" mill. Pipes are shaped at shaping Mill-400 to hexagon pipes-billets.
EFFECT: decreased metal consumption factor.
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| Title | Year | Author | Number |
|---|---|---|---|
| MANUFACTURING METHOD OF HEXAGONAL PIPE WORKPIECES WITH FLAT-TO-FLAT DIMENSION OF 181,8±0,4×3,5+0,3/-0,2×3750+20/-0 mm FROM STEEL GRADE "12Х12М1БФРУ-Ш" FOR FAST NEUTRON NPP REACTORS | 2013 |
|
RU2545949C2 |
| MANUFACTURING METHOD OF SEMI-FINISHED HOT-ROLLED MECHANICALLY PROCESSED PIPES WITH SIZE OF 325×12 mm WITH INCREASED ACCURACY AS TO DIAMETER AND WALL FROM STEEL GRADES "12Х12М1БФРУ-Ш", "16Х12МВСФБР-Ш" FOR REROLLING ON "ХПТ" 450 AND "ХПТ" 250 MILLS INTO SEMI-FINISHED PIPE WORKPIECES WITH SIZE OF 202±1,2×3,5+0,3/-0,2 mm AND FURTHER SHAPING INTO HEXAGONAL PIPE WORKPIECES WITH FLAT-TO-FLAT SIZE OF 181,8±0,4×3,5+0,3/-0,2×3750+20/-0 mm AND 175±0,4×2,5+0,3/-0,2×2680+20/-0 mm FOR FAST NEUTRON REACTORS OF NEW GENERATION | 2013 |
|
RU2550041C2 |
| MANUFACTURING METHOD OF SEMI-FINISHED HOT-ROLLED MECHANICALLY PROCESSED PIPES WITH SIZE OF 325×12 mm WITH INCREASED ACCURACY AS TO DIAMETER AND WALL FROM STEEL GRADES "12Х12М1БФРУ-Ш" AND "16Х12МВСФБР-Ш" FOR REROLLING ON "ХПТ" 450 AND "ХПТ" 250 MILLS INTO SEMI-FINISHED PIPE WORKPIECES WITH SIZE OF 202±1,2×3,5+0,3/-0,2 mm, 194±1,2×2,5+0,3/-0,2 mm AND FURTHER SHAPING INTO HEXAGONAL PIPE WORKPIECES WITH FLAT-TO-FLAT SIZE OF 181,8±0,4×3,5+0,3/-0,2×3750+20/-0 mm AND 175±0,4×2,5+0,3/-0,2×2680+20/-0 mm FOR FAST NEUTRON REACTORS OF NEW GENERATION | 2013 |
|
RU2550045C2 |
| METHOD TO PRODUCE HEXAHEDRAL STOCK PIPES WITH FLAT-TO-FLAT DIMENSION 175×2,5+0,3/-0,2×2680+20/-0 mm FROM STEEL OF GRADE "16Х12МВСФБР-Ш (ЭП823-Ш)" FOR FAST FEEDER REACTORS | 2013 |
|
RU2547362C2 |
| MANUFACTURING METHOD OF COLD-ROLLED MARKETABLE PIPES WITH SIZE OF 170±1,5×3±0,25×370 mm WITH INCREASED ACCURACY AS TO WALL FROM STEEL GRADE "16Х12МВСФБР-Ш" FOR FAST NEUTRON REACTORS OF NEW GENERATION | 2013 |
|
RU2545970C2 |
| MANUFACTURING METHOD OF COLD-ROLLED MARKETABLE TUBES WITH DIMENSIONS OF 150×2×1200 mm WITH INCREASED ACCURACY AS TO DIAMETER AND WALL FROM STEEL GRADE "12Х12М1БФРУ-Ш" FOR FAST NEUTRON REACTORS OF NEW GENERATION | 2013 |
|
RU2542147C1 |
| MANUFACTURING METHOD OF HEXAGONAL STOCK TUBES WITH FLAT-TO-FLAT DIMENSION OF 175±0.4×2.5+0.3/-0.2×2680+20/-0 mm FROM STEEL GRADE "16Х12МВСФБР-Ш" FOR FAST NEUTRON NPP REACTORS | 2013 |
|
RU2542144C1 |
| DIMENSIONS OF 150(1200 MM WITH INCREASED ACCURACY AS TO DIAMETER AND WALL FROM STEEL GRADE "12-12¦1L+¦L-+ (¦¦ 450L-+)" FOR FAST NEUTRON REACTORS OF NEW GENERATION | 2013 |
|
RU2542142C1 |
| MANUFACTURING METHOD OF COLD-ROLLED MERCHANTABLE TUBES WITH SIZE OF 170×370 mm FROM STEEL GRADE "16Х12МВСФБР-Ш (ЭП823-Ш)" FOR FAST NEUTRON REACTORS OF NEW GENERATION | 2013 |
|
RU2545944C2 |
| PRODUCTION METHOD OF SEAMLESS PIPES OF MAJOR AND MIDDLE DIAMETRES FOR STEAM BOILERS, STEAM PIPELINES AND COLLECTORS OF UNITS WITH HIGH AND OVERCRITICAL STEAM PARAMETERS | 2007 |
|
RU2353446C2 |
