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1. 发明专利

JPS632542A POURING DEVICE FOR MOLTEN METAL IN TUNDISH 失效
公开(公告)号：JPS632542A
公开(公告)日：1988-01-07
申请号：JP14130486
申请日：1986-06-19
申请人： NIPPON STEEL CORP , AIKOH CO
发明人： SUDOU ARIKANE , ZAIKE TATSUO , MIKAMI HIROSHI
IPC分类号： B22D11/10
摘要： PURPOSE:To prevent the seizure of a stopper head and to reduce the cost of equipment by constituting the stopper head part abutting on an inlet of a pouring nozzle by non-burning body containing refractory aggregate as main part and the specific wt% of organic binder. CONSTITUTION:A molten metal pouring device 5 is composed of the stopper 6, pouring nozzle 7, sliding nozzle 8, and a submerged nozzle 9 is arranged at the lower part of nozzle 8. The head part of the stopper 6 abutting at least on the upper inlet of the nozzle 7, is formed by the non-sintering body containing the refractoriness aggregate, such as magnesia, etc., as main part and 3-20% organic binder, such as phenol resin, etc. By such a mechanism, during the time from starting of pouring the molten metal into the tundish 2 to opening of nozzle 7 hole, the organic binder in the head is gasified by the molten metal heat, and by breaking down gradually the refractory aggregate, the seizure between the nozzle 7 and head is prevented to reduce the cost of equipment.

2. 发明专利

JPH06218530A CLOSING METHOD OF SLIDING TYPE MOLTEN METAL POURING DEVICE 失效
公开(公告)号：JPH06218530A
公开(公告)日：1994-08-09
申请号：JP950193
申请日：1993-01-22
申请人： NIPPON STEEL CORP
发明人： ZAIKE TATSUO , SATO FUMIYASU , KASHIO SHIGEKI , HASHIMOTO HAJIME
IPC分类号： B22D11/10 , B22D41/42
摘要： PURPOSE:To exactly execute the start of molten metal pouring work and temporary closing during pouring operation, etc., at any timing with a sliding type molten metal pouring device by preventing the solidifying/clogging at a molten metal pouring part including a sliding plate and inoperative sliding due to solidified penetration of sliding plate. CONSTITUTION:A sliding plate 3b of a sliding type molten metal pouring device 3 arranged in a vessel for molten metal repeats reciprocating motion in the prescribed range of a closing region, at the same time, the molten metal is accommodated in the vessel with blowing an inert gas in the flow path immediately above the sliding plate 3b, thus, the sliding plate is on ready to operate.

3. 发明专利

JPS57115959A DETECTION OF SHELL BREAKDOWN OF CAST STEEL IN CONTINUOUS CASTING MOLD 失效
公开(公告)号：JPS57115959A
公开(公告)日：1982-07-19
申请号：JP142081
申请日：1981-01-08
申请人： NIPPON STEEL CORP
发明人： SUDOU ARIKANE , TSUNEOKA SATOSHI , ZAIKE TATSUO , KAWAZU KENJI
IPC分类号： B22D11/16 , B22D11/128
摘要： PURPOSE:To stop casting temporarily or to decrease casting speed and to prevent the generation of breakout by detecting the breakdown of a solidified shell from the abrupt rise in the temp. in the prescribed position in the wall of a mold. CONSTITUTION:Thermocouples are buried in the position by >=20mm. and =1mm. and

4. 发明专利

JPS5832553A CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPS5832553A
公开(公告)日：1983-02-25
申请号：JP12920481
申请日：1981-08-18
申请人： NIPPON STEEL CORP
发明人： ZAIKE TATSUO , SUDOU ARIKANE , KOMIYA TOSHIAKI
IPC分类号： B22D11/10 , B22D11/103 , B22D11/119 , B22D41/50
摘要： PURPOSE:To obtain an ingot of good quality while preventing air oxidation and driving of slag into a molten metallic bath by connecting a fusible nozzle of a compsn. having a low m.p. to the bottom end of a long nozzle extending from a ladle to the molten metal surface in a tundish. CONSTITUTION:A sliding nozzle SN is opened to start charging the molten steel in a ladle 1 into a tundish 2 until the molten metal level L in the tundish 2 rises up to a prescribed level l which is a target. During this time, driving of slag on the molten metal surface into the molten metal does not arise. A fusible nozzle 5 begins to fuse of itself from the inside by the effect of the charging flow of the molten metal and from the outside as it is immersed in the molten metal in accordance with the rising of the molten metal level. At the point of the time when the level l is attained, the entire part of the fusible nozzle disappears and only the durable long nozzle 4 is kept immersed below the molten metal level at its tip. Thus the air oxidation of the charging flow of the molten metal and the driving of slag into the molten metal are prevented and the clean ingot of good quality contg. less inclusions is obtained.

5. 发明专利

JPS6325862B2 失效
公开(公告)号：JPS6325862B2
公开(公告)日：1988-05-27
申请号：JP12920481
申请日：1981-08-18
申请人： NIPPON STEEL CORP
发明人： ZAIKE TATSUO , SUDO ARIKANE , KOMYA TOSHIAKI
IPC分类号： B22D11/10 , B22D11/103 , B22D11/119 , B22D41/50

6. 发明专利

JPS57115960A DETECTION FOR INCLUSION OF CAST STEEL IN CONTINUOUS CASTING MOLD 失效
公开(公告)号：JPS57115960A
公开(公告)日：1982-07-19
申请号：JP142181
申请日：1981-01-08
申请人： NIPPON STEEL CORP
发明人： TSUNEOKA SATOSHI , SUDOU ARIKANE , ZAIKE TATSUO , KAWAZU KENJI
IPC分类号： B22D11/20 , B22D11/128 , B22D11/16
摘要： PURPOSE:To stop casting temporarily or to decelerate casting speed and to prevent the generatin of breakout by detecting the large-sized inclusions in the surface part of a solidified shell from the abrupt drop of the temp. in the prescribed position in mold walls. CONSTITUTION:Thermocouples are buried in the position lower by >=20mm. and =1mm. and

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