FIELD: metal working, namely cold working of metals.
SUBSTANCE: method comprises steps of mechanically removing insulation of dismounted tubes; cutting tubes by pieces and opening tubes along seam to troughs. Produced troughs are subjected to unbending with use of press and(or) rollers for producing steel sheets to be chopped along their perimeters. Steel sheets are subjected to reverse bending with use of rollers. Then steel sheets are packed and braced by means of package tape.
EFFECT: lowered costs for releasing remaining stresses of steel sheets.
1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCTION OF STEEL THICK SHEET BILLET FROM PIPELINES, WHICH WERE DISMANTLED DURING RENOVATION | 2006 |
|
RU2333063C2 |
| METHOD FOR MAKING STEEL THICK-SHEET BLANK OF TUBES OF GAS- AND WATER PIPELINES DISMOUNTED AT RENOVATION (VARIANTS) | 2002 |
|
RU2237534C2 |
| METHOD OF MAKING LARGE-SIZE SHEET BILLET FOR STAMPING ARTICLES FROM COPPER-BASED ALLOY | 2011 |
|
RU2471583C2 |
| METHOD OF DISPOSAL OF DISMANTLED MAIN PIPELINES AND DEVICE TO THIS END | 2013 |
|
RU2532677C1 |
| METHOD FOR PRODUCTION OF TUBULAR ROLLED PRODUCTS OF INCREASED CORROSION RESISTANCE AT A REVERSING MILL | 2018 |
|
RU2697301C1 |
| METHOD OF PRODUCTION STRIPS FOR PIPES OF MAIN PIPELINES | 2008 |
|
RU2385350C1 |
