基本信息:
- 专利标题： 고Cr-고Ni 합금으로 이루어지는 이음매 없는 관용 환강편의 제조 방법 및 그 환강편을 이용한 이음매 없는 관의 제조 방법
- 专利标题（英）：Production method for round steel bar for seamless pipe comprising high cr-ni alloy, and production method for seamless pipe using round steel bar
- 专利标题（中）：用于包含高CR-NI合金的无缝管的圆钢棒的生产方法和使用钢铁棒的无缝管的生产方法
- 申请号：KR1020137017422 申请日：2011-12-20
- 公开(公告)号：KR1020130100193A 公开(公告)日：2013-09-09
- 发明人： 히라세나오야 , 사토우다카노리
- 申请人： 신닛테츠스미킨 카부시키카이샤
- 申请人地址： *-*, Marunouchi *-chome, Chiyoda-ku, Tokyo, Japan
- 专利权人： 신닛테츠스미킨 카부시키카이샤
- 当前专利权人： 신닛테츠스미킨 카부시키카이샤
- 当前专利权人地址： *-*, Marunouchi *-chome, Chiyoda-ku, Tokyo, Japan
- 代理人： 한양특허법인
- 优先权： JPJP-P-2010-285738 2010-12-22
- 国际申请： PCT/JP2011/007098 2011-12-20
- 国际公布： WO2012086179 2012-06-28
- 主分类号： B21B1/02
- IPC分类号： B21B1/02 ; B21B19/04 ; B21B23/00 ; C22C19/05
It made of the Cr 20 to 30% by weight, and a Cr- and Ni alloy to a 30 ~ 50% by weight Ni, and Mo and W in at least one containing at least 1.5 mass% of Mo + 0.5W to, the cross-section is rectangular by rolling bungoe the continuously cast slab, when the diameter of the material of the seamless pipe to manufacture the ring billet 150 ~ 400mm, and a short side length of the cast cross-section H (mm) and the diameter of the ring billet by D (mm) the bungoe rolled in one case, as a condition to satisfy the relationship of 1.3≤H / D≤1.8. Thus, when the puncture by a ring rolling the slabs forming a hollow tube blank, and by the hollow tube blank is rolled stretched also scene-rolled, high Cr- and to manufacture a seamless tube made of a Ni alloy, the rolling during drilling, the crack gwandan can be prevented, it is possible to improve manufacturing yield the seamless pipe.
公开/授权文献:
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 |
| ------B21B1/00 | 金属轧制的方法或制造实心半成品或成型截面的轧机；轧机机列内的加工序列；轧制车间的布置，如机座的分组，轧道的顺序或分轧道变换的顺序 |
| --------B21B1/02 | .轧制截面形状不重要的重型工件，如锭、板坯、坯 |