FIELD: rolled tube production, namely rolling cold rolled large and mean diameter tubes of titanium base alloys from conversion welded blank, possibly in cold rolling mills.
SUBSTANCE: method comprises steps of producing conversion seamless or welded blanks, rolling them at one or more rerolling stages depending upon tube size and alloy type. Conversion tube blank for rolling cold rolled large and mean diameter tubes is produced by shaping in roll mill and by further welding its lengthwise edges in protective argon atmosphere. Conversion welded tube blank is rolled cold rolled tube of maximum diameter at elongation degree 1.2 - 1.4. At next rerolling stages elongation degree is increased by 0.05 - 0.20 till 1.9 - 2.3 for last rerolling stage. Invention provides possibility for producing high-quality large- and mean-diameter tubes of titanium base alloys according to ASTM B 862-02, lowered by 2.0 - 2.2 times consumption factor of titanium base alloys.
EFFECT: lowered cost of producing cold-rolled high quality large- and mean-diameter tubes of titanium base alloys.
2 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COLD ROLLED TITANIUM-ALLOY LARGE- AND MEAN-DIAMETER HIGH-ACCURACY TUBES PRODUCTION METHOD | 2004 |
|
RU2294247C2 |
| METHOD FOR PRODUCING CONVERSION TUBE BLANK FOR ROLLING COLD ROLLED TUBES OF LARGE- AND MEAN-DIAMETERS OF TITANIUM BASE ALLOYS | 2004 |
|
RU2288052C2 |
| METHOD FOR PRODUCING COLD ROLLED TUBES OF LARGE- AND MEAN DIAMETER WITH IMPROVED WALL ACCURACY OF TITANIUM BASE ALLOYS | 2005 |
|
RU2288055C1 |
| METHOD FOR PRODUCING CONVERSION STRAIGHT-SEAM TUBE BLANK FROM TITANIUM BASE ALLOYS FOR ROLLING COLD ROLLED LARGE AND MEAN DIAMETER TUBES WITH IMPROVED ACCURACY OF WALL GEOMETRY | 2005 |
|
RU2297896C2 |
| METHOD FOR PRODUCING CONVERSION TUBE BLANK FOR ROLLING COLD ROLLED LARGE- AND MEAN-DIAMETER TUBES OF TITANIUM BASE ALLOYS | 2004 |
|
RU2288054C2 |
| METHOD FOR PRODUCTION OF COLD-ROLLED PIPES OF LARGE AND MEDIUM DIAMETRES OF HARDLY-DEFORMED GRADES OF STEELS AND ALLOYS WITH HIGH ACCURACY BY WALL | 2007 |
|
RU2386503C2 |
| METHOD FOR PRODUCING CONVERSION TUBES OF LARGE AND MEAN DIAMETERS IN TUBE ROLLING PLANTS WITH PILGER MILLS FROM INGOTS AND BILLETS OF TITANIUM BASE ALLOYS | 2005 |
|
RU2311240C2 |
| METHOD FOR PRODUCTION OF CONVERSION TUBULAR BILLET FOR ROLLING OF COLD-ROLLED PIPES OF LARGE AND MEDIUM DIAMETRES OF HARDLY-DEFORMED GRADES OF STEELS AND ALLOYS | 2007 |
|
RU2386493C2 |
| FABRICATION METHOD OF COLD-ROLLED PIPES OF LARGE AND MEAN DIAMETRES FROM DIFFICULT-TO-FORM GRADES OF STEEL AND ALLOYS WITH INCREASED WALL ACCURACY | 2008 |
|
RU2387502C2 |
| 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 |
