FIELD: process engineering.
SUBSTANCE: invention aims at improving quality of metal strips. Proposed method comprises cold rolling, re-crystallisation annealing and strip ageing. Billet represents cartridge of unarmed projectile and narrowed front and bottom parts cut off. Note here that said billet is first annealed, and then its wall is subjected to double-angle bending to zero inner angles. Then cartridge with bent wall is subjected to cold rolling with reduction making at least 35%, annealed again and bands are cut off on both sides to produce strips to be aged separately.
EFFECT: higher strength and corrosion resistance.
1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MANUFACTURING STRIPS FROM COLD-ROLLED SHEETS FROM LOW-CARBON TYPE-OB STEEL ALLOYED BY PHOSPHORUS (0,04-0,10 BY MASS) AND ALUMINUM (0,02-0,08 % BY MASS) FOR ENAMELLING | 1992 |
|
RU2010634C1 |
| PRODUCTION METHOD OF THIN COLD STRIP FOR METALLIC OR POLYMERIC COATING | 2007 |
|
RU2351661C1 |
| METHOD FOR PRODUCTION OF THIN COLD-ROLLED STRIPS FOR APPLICATION OF POLYMER COATING | 2018 |
|
RU2689491C1 |
| METHOD OF PRODUCTION OF A SHEET STEEL | 2004 |
|
RU2255988C1 |
| METHOD OF MAKING SHEET STEEL | 2001 |
|
RU2197542C1 |
| METHOD FOR PRODUCTION OF COLD ROLLED STRIPS FOR ENAMELLING | 2008 |
|
RU2392072C1 |
| METHOD FOR MAKING STEEL STRIPS FOR MAGNETIC SCREENS | 2002 |
|
RU2223334C2 |
| METHOD OF PRODUCTION OF COLD ROLLED METAL OF UPGRADED STRENGTH | 2007 |
|
RU2358025C1 |
| METHOD FOR PRODUCTION OF COLD-ROLLED STRIP FROM CARBON TAPE | 2007 |
|
RU2371264C2 |
| MANUFACTURING METHOD OF COLD-ROLLED STRIP (VERSIONS) | 2010 |
|
RU2433192C1 |
