FIELD: construction.
SUBSTANCE: method includes continuous casting of a tape from low-carbon or low-alloyed steel with continuous movement of liquid steel relative to area of its pouring and crystallisation. The cast tape after crystallisation of steel is cooled down to 950…1100°C, fed into a longitudinal rolling mill stand and pressed to shape a profile in the form of a pair of mutually orthogonal rectangular elements, connected to each other along the radius with a curved section, the large diameter of which, as well as the height of cross section of the formed profile are regulated by mathematical dependences.
EFFECT: increased moment of inertia of a profile during bending and an inertia radius, without variation of material intensity and thickness of profile shelves, increased manufacturability of profile making.
5 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF RAIL PRODUCTION | 2013 |
|
RU2569624C2 |
| HOT-ROLLED COLUMN H-SECTION | 2009 |
|
RU2411091C1 |
| BEAM | 2002 |
|
RU2232125C2 |
| ROLLED BEAM | 2001 |
|
RU2227069C2 |
| METHOD OF GUARANTEEING SUFFICIENT TECHNICAL RESOURCE OF CRANE GIRDERS | 2014 |
|
RU2583495C2 |
| METHOD OF MAKING CRANE RUNWAY STRUCTURE ASYMMETRICAL IN CROSS SECTION | 1998 |
|
RU2196100C2 |
| METHOD OF ROLLING DOUBLE-TEE FROM LOW-ALLOY STEEL | 2011 |
|
RU2486972C2 |
| METHOD FOR ENHANCING CARRYING CAPABILITY OF CYLINDRICAL TUBE AT BENDING | 2005 |
|
RU2304479C2 |
| METHOD OF PROTECTION AGAINST COLLAPSE OF CRANE AND EAVES GIRDERS | 2017 |
|
RU2674736C2 |
| ARCHED RAIL | 2001 |
|
RU2208570C2 |
