公开(公告)号：EP0760397A4

公开(公告)日：1999-07-14

申请号：EP96909370

申请日：1996-04-12

申请人： NIPPON STEEL CORP

发明人： TERAOKA SHINICHI ,  SUEHIRO TOSHIYUKI ,  ISHIMARU EIICHIROU ,  TAKESHITA TETSUROU ,  SHODA SHUNJI ,  ARAI TAKASHI ,  OKA HIDEKI ,  NOHARA YOSHIKATSU

IPC分类号： B21B1/22 ,  B21B1/46 ,  B21B3/02 ,  B21B9/00 ,  B21B37/28 ,  B21B39/00 ,  B21B39/08 ,  B21B45/00 ,  B22D11/06 ,  B22D11/12 ,  C21D1/52 ,  C21D8/02 ,  C21D9/56

CPC分类号： B22D11/0622 ,  B21B1/463 ,  B21B3/02 ,  B21B9/00 ,  B21B37/28 ,  B21B39/006 ,  B21B39/08 ,  B21B45/004 ,  B21B2001/225 ,  B22D11/1206 ,  C21D1/52 ,  C21D8/0205 ,  C21D8/0215 ,  C21D9/56 ,  C21D9/561 ,  C21D9/564

摘要： Equipment for manufacturing stainless steel strip formed by arranging in order a double-drum continuous casting machine, a bridal roll- or pinch roll-containing atmosphere control cover, a hot rolling mill, a heat treatment furnace formed by a direct fire burner connected in the lengthwise direction of the furnace to header pipes arranged in parallel in the widthwise direction of the furnace, a cooler, and a take-up unit.

公开(公告)号：EP0788854A4

公开(公告)日：1999-08-18

申请号：EP96929532

申请日：1996-09-05

申请人： NIPPON STEEL CORP

发明人： OKA HIDEKI ,  ARAI TAKASHI ,  MIYAZAKI MASAFUMI ,  YAMAMURA KAZUTO ,  YAMADA MAMORU

IPC分类号： B22D11/06

CPC分类号： B22D11/0622

摘要： A twin-drum continuous casting method for continuously supplying molten steel between a pair of cooling drums disposed in parallel to each other for solidification thereat and being cast into a thin cast piece wherein at the closest position of the cooling drums, a concave crown amount is imparted to the cooling drums in which the solid phase rate at the thickness-wise centre of a thin cast piece in a range where the distance from an end of the thin cast piece to a central portion is within 50 mm indicates a value equal to or more than a solid phase rate at the fluidity limit or the cooling efficiency in the vicinity of the end portion of the cooling drum is improved.

公开(公告)号：EP1281458A4

公开(公告)日：2004-06-09

申请号：EP01930090

申请日：2001-05-11

申请人： NIPPON STEEL CORP

发明人： YAMAMURA HIDEAKI ,  HAMADA NAOYA ,  IZU TADAHIRO ,  KURISU YASUSHI ,  SUICHI ISAO ,  MIYAZAKI MASAFUMI ,  SEKI KAZUMI ,  TAKEUCHI EIICHI ,  YAMADA MAMORU ,  OKA HIDEKI ,  MARUKI YASUO ,  ISHIMARU EIICHIRO ,  NAKAYAMA MITSURU

IPC分类号： B22D11/06 ,  C21D9/573

CPC分类号： B22D11/0651 ,  B22D11/0611 ,  B22D11/0622 ,  B22D11/0665 ,  C21D9/5737

公开(公告)号：EP0706845A4

公开(公告)日：1997-05-02

申请号：EP95913335

申请日：1995-03-24

申请人： NIPPON STEEL CORP

发明人： NAKASHIMA HIROYUKI ,  OKA HIDEKI ,  TAKEUCHI HIDEMARO ,  TANAKA SHIGENORI ,  FUKUDA YOSHIMORI ,  AKAMATSU SATOSHI ,  MIYAZAKI MASAFUMI ,  MATSUMURA YOSHIKAZU

IPC分类号： B22D11/06 ,  B22D11/12

CPC分类号： B22D11/0622 ,  B22D11/0697 ,  B22D11/1213

摘要： In continuous casting of a carbon steel thin strip slab, the present invention makes the scales generated in the slab thin and produces a composition suitable for machining such as cold rolling and pressing. The construction of an apparatus for restricting the occurrence of the scales is simplified, a consumption quantity of an inert gas is saved, and the slab is produced efficiently. A carbon steel containing not greater than 0.5 % of C is cooled and solidified by a pair of cooling drums to produce a thin strip slab having a thickness of not greater than 10 mm, the slab so produced is introduced into a sealed chamber and is held in an argon atmosphere having an oxygen gas concentration of not higher than 5 % within a temperature range of up to at least 1200 DEG C, the temperature range is then cooled to 750 to 800 DEG C at a cooling rate of at least 10 DEG C/sec, and the slab is taken up by a winding machine into a coil within a temperature range of 500 to 800 DEG C. The atmosphere described above is generated by utilizing a nitrogen gas or a combustion waste gas, the formation of the scales is restricted, and the composition is controlled.