FIELD: process engineering.
SUBSTANCE: invention relates to pipe rolling, primarily, to continuous pipe rolling mill roll pass and can be used at pipe rolling at two-roll and cluster mills. Mill pass is composed of roll passes, roll cross-section profile being composed by arc with recess at pass bottom located in symmetry relative to pass vertical axis. Recess contour is composed by arc and two symmetric straight lines tangential to recess arc and two peripheral section of profile arc of the roll cross-section while the angle composed by recess outline makes at least 1/8-1/6 of the roll pass angle.
EFFECT: higher quality of finished pipes.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF HOT-ROLLED PIPE PRODUCTION | 2012 |
|
RU2489221C1 |
| METHOD TO ROLL TROUGH-LIKE PROFILES AND SYSTEM OF PASSES TO THIS END | 2008 |
|
RU2388556C1 |
| METHOD OF CONTINUOUS PIPE ROLLING | 2013 |
|
RU2576968C2 |
| PILGER MILL ROLL FOR 273-630 MM DIAMETER PIPES ROLLING | 2014 |
|
RU2564503C2 |
| VERTICAL ROLL FOR WIDESTRIP HOT ROLLING MILL | 0 |
|
SU1458039A1 |
| PASSES SYSTEM OF FIRST TWO SECTION ROLLING MILL STANDS OF ROLLS | 1992 |
|
RU2070446C1 |
| HOT-ROLLED TUBE MANUFACTURING METHOD | 2013 |
|
RU2564194C2 |
| TENSION BOX GROOVED PASS | 1999 |
|
RU2165807C1 |
| METHOD FOR COLD PILGER ROLLING OF TUBES | 1999 |
|
RU2150342C1 |
| METHOD OF PRODUCING SEAMLESS TUBES | 2009 |
|
RU2400317C1 |
