FIELD: tube production, namely method for producing cold rolled large- and mean-diameters titanium -alloy tubes at high accuracy from conversion welded blank, possibly in cold rolling mills of given types.
SUBSTANCE: method comprises steps of making conversion hot rolled tube blank; working it for removing flaws by turning and boring; or making sheet blank, planing sheet along width; preparing sheet edges for welding; shaping sheet blank in rollers to tube blank; gas-shied welding of lengthwise edges of blank by means of consumable electrode of the same alloy; preparing welded joint for cold rolling; subjecting welded joint and basic alloy to heat treatment; rolling tubes in rolling mills during several procedures at growing elongation factor. After first rolling procedure conversion tube blank is subjected to heat treatment in inductor. After next rolling procedures it is ground or etched along outer and inner surfaces.
EFFECT: possibility for making cold rolled large- and mean-diameter titanium-alloy tubes at high accuracy of wall thickness having uniform mechanical properties from conversion tube blank instead of seamless one, lowered labor consumption for making tube blank, reduced consumption factor of titanium base alloys, decreased cost of tube production.
5 cl, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| 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 COLD-ROLLED LARGE- AND MEAN- DIAMETER TUBES OF TITANIUM BASE ALLOYS | 2004 |
|
RU2288053C2 |
| 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 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 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 |
| METHOD FOR PRODUCING CONVERSION TUBE BLANK FOR ROLLING COLD ROLLED LARGE- AND MEAN-DIAMETER TUBES OF TITANIUM BASE ALLOYS | 2004 |
|
RU2288054C2 |
| PRODUCTION OF 377×14-19 mm SEAMLESS HOT-ROLLED PIPES FOR STEAM BOILERS, STEAM PIPELINES AND MANIFOLDS OF PLANTS WITH HIGH AND SUPERHIGH STEAM PARAMETERS FROM ESR INGOTS OF "10Х9МФБ-Ш"-GRADE STEEL | 2013 |
|
RU2545924C2 |
| 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 |
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RU2353446C2 |
