公开(公告)号：JPH10193044A

公开(公告)日：1998-07-28

申请号：JP375097

申请日：1997-01-13

Applicant: SUMITOMO METAL IND

Inventor： MIZUKOSHI WATARU ,  EBUKURO TADAO ,  OTAKA MATSUO ,  HARA KUNITO

IPC: B22D11/08 ,  B22D11/04 ,  B22D11/05 ,  B22D11/055 ,  B22D11/06

Abstract: PROBLEM TO BE SOLVED: To provide a continuos casting method of a thin cast slab using a horizontal type twin roll type continuos casting apparatus which can prevent the development of stuck shell at corner parts formed with side part weirs and cooling rolls and the apparatus therefor. SOLUTION: In the continuous casting method by supplying and cooling molten melt in a molten metal supplying part 3 surrounded by the outer peripheral surfaces of the cooled upper roll 1 and lower roll 3, the side part weirs 4, 4' arranged to face both side surfaces, these one pair of rolls and a lower part weir 5 arranged in contact with the outer peripheral surface of the lower roll 2 and the lower end surfaces of the side part weirs 4, 4' into a gap formed with the upper roll 1 and the lower roll 2, the lower roll 2 is wider than the upper roll 1 and both side surfaces of the lower roll 2 are arranged so as to extend outside from the both side surface of the upper roll 1. Further the side weirs 4, 4' are arranged in contact with the side surface of the upper roll 1 and approach the lower roll 2 and also, so that the difference parts in level are brought into contact with the outer peripheral surface of the lower roll 2, and after preheating the side part weirs 4, 4' with a heating means provided in the side part weirs 4, 4' the pouring of the molten metal into the molten metal supplying part 3 is started.

公开(公告)号：JPH10180418A

公开(公告)日：1998-07-07

申请号：JP34334096

申请日：1996-12-24

Applicant: KOBE STEEL LTD

Inventor： MORISHITA MAKOTO ,  OSHITA HIROSHI

IPC: B22D11/00 ,  B22D11/04 ,  B22D11/041 ,  B22D11/049 ,  B22D11/055 ,  B22D11/124

Abstract: PROBLEM TO BE SOLVED: To provide a vertical type continuous dating method for a rectangular cross sectional aluminum alloy cast slab by which the aluminum cast slab without casting the crack of the cast slab can be cast. SOLUTION: The molten aluminum alloy is charged from the upper part of a vertical opening type forced cooling mold and a solidified shell is formed by primarily cooling with the mold and also, the cast slab forming the solidified shell is drawn out from the lower part of the forced cooling mold and cooling medium is made in direct contact with the surface of the drawn-out cast slab to execute a secondary cooling. In such a case, the secondary cooling medium fluid is injected so that the collision flow rate of the secondary cooling medium to be made in direct contact with the surface of the cast slab is uniformed, and is collided so that the collided position becomes horizontal on the surface of the cast slab.

公开(公告)号：JPH10506057A

公开(公告)日：1998-06-16

申请号：JP51107596

申请日：1995-09-19

IPC: B22D11/04 ,  B22D11/055 ,  B22D11/06

Abstract: The caster includes a pair of movable opposed belts, each of the belts having a casting surface and a pair of movable opposed dam blocks including a plurality of dam blocks having one end mounted to an orbiting support and a casting surface opposite the mounted end. The casting surfaces of the belts and the casting surfaces of the dam blocks define a casting zone for solidifying the molten metal into cast metallic product. The caster also includes cooling plates/bars for cooling the belts while the belts pass through the casting zone.

公开(公告)号：JP2567071Y2

公开(公告)日：1998-03-30

申请号：JP2913291

申请日：1991-04-25

IPC: B22D11/04 ,  B22D11/043 ,  B22D11/055 ,  B22D11/10 ,  B22D11/115

公开(公告)号：JP2647783B2

公开(公告)日：1997-08-27

申请号：JP23664392

申请日：1992-09-04

Applicant: KAWASAKI SEITETSU KK

Inventor： IDOKAWA SATOSHI ,  TANMACHI KENICHI ,  SAKURATANI TOSHIKAZU

IPC: B22D11/04 ,  B22D11/055 ,  B22D11/059 ,  B22D11/10 ,  B22D11/11 ,  B22D11/112 ,  B22D11/116 ,  C22C38/00 ,  C22C38/40 ,  H05B6/10

公开(公告)号：JPH09192792A

公开(公告)日：1997-07-29

申请号：JP839996

申请日：1996-01-22

Applicant: KOBE STEEL LTD

Inventor： MATSUZAKI HITOSHI ,  ONOE TOSHIO ,  YOSHIKAWA KATSUYUKI

IPC: B22D11/04 ,  B22D11/055 ,  B22D11/06

Abstract: PROBLEM TO BE SOLVED: To produce a thin cast slab with a belt type continuous caster, in which the cooling zone length can be shortened because of quickening of the average cooling speed and the productivity can be improved beacuse of rising of the casting speed in the case of being the same length of the continuous caster and the produced thin cast slab has good characteristics (roughness, segregation, etc.) and prevents crack and attain the high quality. SOLUTION: In a belt type continuous casting method for casting the thin cast slab 8 by supporting the back surface of an endless belt constituting a mold with backup rolls 5 etc., and cooling with the cooling water, the outer diameter of the backup roll 5, etc., at a part contacting with the wide surface part of the cast slab is made to larger diameter by the shrinkage rate of the cast slab 8 toward downstream in the casting direction.

公开(公告)号：JPH09141396A

公开(公告)日：1997-06-03

申请号：JP30101995

申请日：1995-11-20

Applicant: MITSUBISHI HEAVY IND LTD

Inventor： TANAKA KISABURO ,  WAKIYAMA YOICHI ,  MATSUMOTO TAKAHIRO ,  YAMAMOTO KEIICHI

IPC: B22D11/04 ,  B22D11/055 ,  B22D11/06

Abstract: PROBLEM TO BE SOLVED: To provide a welded structure capable of being exactly sealed of cooling liquid by providing a cooling liquid hole in the vicinity of the outer peripheral surface at the inner part of a cooling roll and providing a cooling liquid flowing control member in the inner part of the cooling liquid hole, a supporting member for fitting the member in liquid-tightness and a seal cover. SOLUTION: The cooling liquid hole is bored so as to penetrate the axial directional cooling liquid hole 10a in the axial direction in a sleeve 2b for cooling and bored so as to form the radial directional cooling liquid hole 10b in the radial direction to pass the cooling water through a cooling liquid duct. A control member 3 is set in the axial directional cooling liquid hole 10a and a hollow hole 3a is arranged in the axial direction. A packing 20 foe sealing is arranged in a supporting member 4 of the member 3 to support the member 3 and also, to prevent the cooling liquid from flowing into a space part 7. The end part of the axial directional cooling liquid hole 10a is provided with the seal cover 5 and firmly sealed with welding.

公开(公告)号：JPH091295A

公开(公告)日：1997-01-07

申请号：JP14594095

申请日：1995-06-13

Applicant: HITACHI CABLE

Inventor： YAMANOBE HIROSHI

IPC: B22D11/04 ,  B22D11/055 ,  B22D11/06

Abstract: PURPOSE: To improve the cooling efficiency by transforming the flow of cooling medium passed in the inner part from laminar flow to turbulent flow as quick as possible in a dam block guide. CONSTITUTION: In the dam block guide 10 arranged at each outside of one pair of dam blocks arranged in both sides of one pair of rotatable belts at the upper and the lower parts and also, forming a hollow part 11 for passing the cooling medium in the inner part, fins 12 for developing the turbulent flow at the time of passing the cooling medium are arranged in the inner wall of the hollow part 11.

公开(公告)号：JP2558187B2

公开(公告)日：1996-11-27

申请号：JP13033991

申请日：1991-05-07

Applicant: SHINNIPPON SEITETSU KK

Inventor： ANZAI SHIGENAO ,  MAEDE HIROFUMI

IPC: B22D11/04 ,  B22D11/055 ,  B22D11/16

公开(公告)号：JPH08309492A

公开(公告)日：1996-11-26

申请号：JP14254196

申请日：1996-06-05

Applicant: HITACHI LTD ,  KAWASAKI STEEL CO

Inventor： NISHINO TADASHI ,  KAJIWARA TOSHIYUKI ,  KIMURA TOMOAKI ,  MORIWAKI SABURO

IPC: B22D11/04 ,  B22D11/053 ,  B22D11/055 ,  B22D11/06

Abstract: PURPOSE: To carry out the stable continuous casting of the sheet by easily drawing the sheet without solidifying the molten steel on the shorter side. CONSTITUTION: In a continuous casting machine of the sheet provided with a vibrating mold which consists of a longer mold and a shorter mold and is vibrated in the slab drawing direction, the vibrating mold is provided with a shorter mold 4 whose upper part is expanded and whose lower part is reduced, and which is made of the refractory of low heat conductivity. The sheet can be easily drawn without solidifying the molten steel 16 on the shorter side to enable the stable continuous casting of the sheet.