基本信息:
- 专利标题:
- 申请号:FR8910308 申请日:1989-07-31
- 公开(公告)号:FR2650298A1 公开(公告)日:1991-02-01
- 发明人: EGUCHI TOYOAKI , OHWADA NORIYOSHI , SAGAE YUTAKA , OHSUZU HIROTADA , ITO KATSUMI
- 申请人: TOA STEEL CO LTD
- 专利权人: TOA STEEL CO LTD
- 当前专利权人: TOA STEEL CO LTD
- 优先权: FR8910308 1989-07-31; GB8916193 1989-07-14; GB9025293 1990-11-21; JP14536688 1988-06-13
- 主分类号: B21B43/00
- IPC分类号: B21B43/00 ; B21B45/02 ; C21D9/52
摘要:
A method for direct patenting of a hot-rolled wire rod comprises the steps of: transporting a hot-rolled wire rod on a conveyer in a state that said wire rod is in a form of continuous series of loops; blasting mist to the surface of said wire rod at least from above and blasting air to the back side of the wire rod from below to cool the wire rod at a rate of 12 DEG C. to 50 DEG C./sec. down to 550 DEG C. to 400 DEG C. during the transportation, the mist provides 200 to 2400 l/min. water and has an air to water ratio of 200 Nm3/m3 or less; and reheating the cooled wire rod at a rate of 3 DEG C./sec. or less, or cooling the cooled wire rod slowly at a rate of 2 DEG C./sec. or less during the transportation. In addition, another method for direct patenting of a hot-rolled wire rod comprises the steps of: transporting a hot-rolled wire rod on a conveyer in a state that the wire rod is in a form of continuous series of loops; cooling, as a first cooling step, the wire rod at a rate of 12 DEG to 40 DEG C./sec. down to 600 DEG C. to 450 DEG C. during the transportation by means of blasting a cooling medium to the wire rod for 5 secs. to 30 secs.; and cooling, as a second cooling step, the cooled wire rod st a rate of 2 DEG C. to 15 DEG C./sec.down to 550 DEG C. to 400 DEG C. during the transportation by means of blasting a cooling medium to the wire rod cooled in the first cooling step for 5 secs. to 30 secs.
公开/授权文献:
- FR2650298B1 公开/授权日:1994-03-04
信息查询:
EspacenetIPC结构图谱:
B | 作业;运输 |
--B21 | 基本上无切削的金属机械加工;金属冲压 |
----B21B | 金属的轧制 |
------B21B43/00 | 静止的或移动的冷却床;专门配合冷却床的装置,如用于制动工件或输送工件进出冷却床的装置 |