专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

CA2224496C HEATING METHOD AND APPARATUS 未知
公开(公告)号：CA2224496C
公开(公告)日：2004-11-23
申请号：CA2224496
申请日：1997-12-15
申请人： KAWASAKI STEEL CO
发明人： NAKAGAWA TSUGUHIKO
IPC分类号： F23C13/00 , B22D11/10 , B22D11/11 , B22D11/112 , B22D11/116 , B22D11/117 , C21D1/52 , C21D1/74 , C21D1/76 , C21D9/56 , F23L15/02 , F27B9/36 , F27D7/06 , F27D17/00 , F27D99/00
摘要： Employed are three or more units of regenerative heaters 1A - 1C including first regenerative chambers 3A - 3C provided in lines for exhausting combustion exhaust gases, and second regenerative chambers 4A - 4C provided in lines for sucking and recovering N2 as an atmosphere gas. Of those regenerative heaters, one unit (1C) passes the sucked atmosphere gas N2 through the second regenerative chamber 4C to accumulate the developed heat of the sucked atmosphere gas N2 therein. The remaining one unit (1A) passes combustion air through the second regenerative chamber 4A, in which the heat has been accumulated, for heating it, performs combustion by using the combustion air, and passes only the combustion exhaust gas produced with the combustion through the first regenerative chamber 3A to accumulate heat therein. The remaining one unit (1B) passes the atmosphere gas N2 through the first regenerative chambers 3A - 3C, in which heat has been accumulated, for conversion into developed heat from accumulated heat, thereby heating and supplying the heated atmosphere gas N2 to an atmosphere of an object to be heated. Such a combustion state, an atmosphere gas heating state and an atmosphere gas sucking state are switched over successively in this order for each of the regenerative heaters. As a result,the atmosphere gas can be recovered for reuse and the developed heat of the recovered atmosphere gas can be converted into developed heat of the combustion air for an improvement of thermal efficiency.

2. 发明专利

DE69329021T2 未知
公开(公告)号：DE69329021T2
公开(公告)日：2000-11-16
申请号：DE69329021
申请日：1993-12-24
申请人： KAWASAKI STEEL CO , OTTO CORP
发明人： NAKAGAWA TSUGUHIKO , NAKANISHI YOSHIYUKI , HIRATA MOTOHIRO , KURAMOTO KOUSHI , OBASHI MASAMITSU , ABE YOSHIO , YURI TOSHIYASU , KOJIMA KAZUHIRO , YAGI MAMORU , TAJIMA SHOSHICHIRO
IPC分类号： F23C3/00 , F23D14/22 , F23D14/66 , F23D14/72 , F23L15/02 , F23N5/00 , F28D17/02 , F23D14/02 , F23N5/14
摘要： A heating apparatus includes at least a pair of regenerative burner units (55, 55') having a fuel injection nozzle and a heat regenerator (14, 141, 142) provided with a combustion air supply path. One regenerative burner unit is supplied with fuel through a fuel shut-off valve (65) and a fuel change-over valve (63), and supplied with combustion air through a supply and exhaust change-over valve (57) to perform combustion operation. The other regenerative burner unit performs heat regenerating operation by passing a combustion waste gas. The apparatus includes a flow regulating valve (66, 66') for supplying the combustion air to the regenerative burner unit for combustion operation and controlled in dependence on the oxygen concentration in the combustion waste gas flowing from the regenerative burner unit for heat regenerating operation to the supply and exhaust change-over valve and/or the pressure between the burner and the heat regenerating chamber.

3. 发明专利

DE69107931D1 未知
公开(公告)号：DE69107931D1
公开(公告)日：1995-04-13
申请号：DE69107931
申请日：1991-07-31
申请人： KAWASAKI STEEL CO
发明人： KURAMOTO KOSHI , NAKAGAWA TSUGUHIKO , SHIBUYA SATOSHI , OGAWA TAKAO , KAIHARA TOSHIKAZU , FURUKAWA KUSUO
IPC分类号： C21D9/52 , C21D9/56 , C23C8/02
摘要： A continuous annealing line for annealing a cold-rolled strip (7) of a ultra-low-carbon steel comprising a heating furnace (2) for heating the strip which is fed continuously, with or without a soaking furnace (3) following the heating furnace, a cooling furnace (5) in which the heated steel strip is cooled, and a carburizing/nitriding furnace (4) disposed between the heating furnace (2) or the soaking furnace (3) and the cooling furnace (5). The carburizing/nitriding furnace (4) may be divided into a plurality of zones, each of which is provided with control means for controlling the carburizing/nitriding atmosphere and carburizing/nitriding temperature in the zone. The continuous annealing line may further comprise a plurality of carburizing/nitriding furnaces and have an arrangement for conducting a switching between a mode in which the carburizing/nitriding furnace is used for carburizing/nitriding the steel strip and a mode in which the carburizing/cooling furnace is used for cooling the steel strip.

4. 发明专利

DE69808812D1 未知
公开(公告)号：DE69808812D1
公开(公告)日：2002-11-28
申请号：DE69808812
申请日：1998-01-30
申请人： KAWASAKI STEEL CO
发明人： NAKAGAWA TSUGUHIKO , KARUBE KENTA , OKAMOTO HIROSHI , IWATANI TOSHIYUKI , MOCHIZUKI SAKAE , FUJIWARA YOSHIHARU
IPC分类号： C21D1/52 , C21D9/56 , F27B9/12 , F27B9/28 , F27D17/00 , F27B9/36
摘要： A continuous heat treating furnace in which heat is efficiently recovered from the combustion exhaust gas from the heating section of a continuous annealing furnace. The continuous annealing furnace of the metal strip is a heating furnace or a heating device provided with plural burners for heating to a predetermined temperature a steel material or a continuously supplied metal strip by means of combustion of the burners; a regenerative heat exchanger for collecting a sensible heat of a combustion exhaust gas of the burners, reserving the heat in a regenerator and supplying a predetermined gas to the regenerator to recover the heat to the predetermined gas; and a preheating section for blowing the predetermined gas from the regenerative heat exchanger to the metal strip for preheating. The heat exchanger body is divided into at least three sections, each section having a regenerator. When the heat exchanger body is continuously or intermittently rotated each section is provided with a path for successively repeating to pass a heating section combustion exhaust gas for applying a sensible heat of exhaust gas to the regenerator, a purging gas for removing debris sticking to the regenerator when applying the sensible heat of the heating section exhaust gas and a circulating gas for collecting the sensible heat of the regenerator and blowing the heat to the metal strip passing the preheating section to raise a temperature of the metal strip.

5. 发明专利

AU729919B2 Heating method and heating apparatus 未知
公开(公告)号：AU729919B2
公开(公告)日：2001-02-15
申请号：AU5412198
申请日：1997-12-15
申请人： KAWASAKI STEEL CO
发明人： NAKAGAWA TSUGUHIKO
IPC分类号： F23C13/00 , B22D11/10 , B22D11/11 , B22D11/112 , B22D11/116 , B22D11/117 , C21D1/52 , C21D1/74 , C21D1/76 , C21D9/56 , F23L15/02 , F27B9/36 , F27D7/06 , F27D17/00 , F27D99/00
摘要： Employed are three or more units of regenerative heaters 1A - 1C including first regenerative chambers 3A - 3C provided in lines for exhausting combustion exhaust gases, and second regenerative chambers 4A - 4C provided in lines for sucking and recovering N2 as an atmosphere gas. Of those regenerative heaters, one unit (1C) passes the sucked atmosphere gas N2 through the second regenerative chamber 4C to accumulate the developed heat of the sucked atmosphere gas N2 therein. The remaining one unit (1A) passes combustion air through the second regenerative chamber 4A, in which the heat has been accumulated, for heating it, performs combustion by using the combustion air, and passes only the combustion exhaust gas produced with the combustion through the first regenerative chamber 3A to accumulate heat therein. The remaining one unit (1B) passes the atmosphere gas N2 through the first regenerative chambers 3A - 3C, in which heat has been accumulated, for conversion into developed heat from accumulated heat, thereby heating and supplying the heated atmosphere gas N2 to an atmosphere of an object to be heated. Such a combustion state, an atmosphere gas heating state and an atmosphere gas sucking state are switched over successively in this order for each of the regenerative heaters. As a result, the atmosphere gas can be recovered for reuse and the developed heat of the recovered atmosphere gas can be converted into developed heat of the combustion air for an improvement of thermal efficiency.

6. 发明专利

BR9900806A 未知
公开(公告)号：BR9900806A
公开(公告)日：2000-08-29
申请号：BR9900806
申请日：1999-02-25
申请人： KAWASAKI STEEL CO
发明人： HARA KAZUAKI , NAKAGAWA TSUGUHIKO
IPC分类号： B22D11/10

7. 发明专利

DE69323256T2 未知
公开(公告)号：DE69323256T2
公开(公告)日：1999-06-02
申请号：DE69323256
申请日：1993-09-21
申请人： KAWASAKI STEEL CO
发明人： SATOH SUSUMU , OKADA SUSUMU , HIRATA KOUICHI , MORITA MASAHIKO , NAKAGAWA TSUGUHIKO
IPC分类号： C21D8/04 , C22C38/00 , C22C38/60 , C23C8/34 , C21D9/48 , C22C38/06 , C23C8/06 , C23C8/22 , C23C8/26 , C23C8/32
摘要： The present invention provides a steel sheet for press working that exhibits excellent stiffness and satisfactory press workability. The steel sheet for press working includes: a composition of C + N + B = 0.007 to 1.0 wt% in a region from the surface of the steel sheet to a position of 5% of the thickness in a direction of the thickness in at least either of the surface layers; a pole intensity of [{321} + {211}]/{100} >/= 1.2 in a vertical direction to the sheet surface realized at a 3% thickness position in the direction of the thickness from the surface; and a composition of C + N + B = 0.010 wt% less than in the central portion 40% except for two 30% portions of the two surface layers in the direction of the thickness.

8. 发明专利

DE69310897D1 未知
公开(公告)号：DE69310897D1
公开(公告)日：1997-06-26
申请号：DE69310897
申请日：1993-10-15
申请人： KAWASAKI STEEL CO
发明人： NAKAGAWA TSUGUHIKO , KURAMOTO KOUSHI , HANAZONO NOBUAKI , MOROZUMI JUN , SATOH SUSUMU , OKADA SUSUMU
IPC分类号： C23C8/22

9. 发明专利

CA2048149A1 CONTINUOUS ANNEALING LINE HAVING CARBURIZING/NITRIDING FURNACE 未知
公开(公告)号：CA2048149A1
公开(公告)日：1992-02-01
申请号：CA2048149
申请日：1991-07-30
申请人： KAWASAKI STEEL CO
发明人： KURAMOTO KOSHI , NAKAGAWA TSUGUHIKO , SHIBUYA SATOSHI , OGAWA TAKAO , KAIHARA TOSHIKAZU , FURUKAWA KUSUO
IPC分类号： C21D9/52 , C21D9/56 , C23C8/02 , C23C8/22 , C23C8/26 , C21D9/67
摘要： A continuous annealing line for annealing a cold-rolled strip (7) of a ultra-low-carbon steel comprising a heating furnace (2) for heating the strip which is fed continuously, with or without a soaking furnace (3) following the heating furnace, a cooling furnace (5) in which the heated steel strip is cooled, and a carburizing/nitriding furnace (4) disposed between the heating furnace (2) or the soaking furnace (3) and the cooling furnace (5). The carburizing/nitriding furnace (4) may be divided into a plurality of zones, each of which is provided with control means for controlling the carburizing/nitriding atmosphere and carburizing/nitriding temperature in the zone. The continuous annealing line may further comprise a plurality of carburizing/nitriding furnaces and have an arrangement for conducting a switching between a mode in which the carburizing/nitriding furnace is used for carburizing/nitriding the steel strip and a mode in which the carburizing/cooling furnace is used for cooling the steel strip.

10. 发明专利

CA2225356C HEAT TREATING FURNACE FOR A CONTINUOUSLY SUPPLIED METAL STRIP 未知
公开(公告)号：CA2225356C
公开(公告)日：2006-06-06
申请号：CA2225356
申请日：1998-01-30
申请人： KAWASAKI STEEL CO
发明人： OKAMOTO HIROSHI , KARUBE KENTA , NAKAGAWA TSUGUHIKO , FUJIWARA YOSHIHARU , IWATANI TOSHIYUKI , MOCHIZUKI SAKAE
IPC分类号： C21D9/56 , C21D1/52 , F27B9/12 , F27B9/28 , F27D17/00 , F28D17/00
摘要： A continuous heat treating furnace in which heat is efficiently recovered from the combustion exhaust gas from the heating section of a continuous annealing furnace. The continuous annealing furnace of the metal strip is a heating furnace or a heating device provided with plural burners for heating to a predetermined temperature a steel material or a continuously supplied metal strip by means of combustion of the burners; a regenerative heat exchanger for collecting a sensible heat of a combustion exhaust gas of the burners, reserving the heat in a regenerator and supplying a predetermined gas to the regenerator to recover the heat to the predetermined gas; and a preheating section for blowing the predetermined gas from the regenerative heat exchanger to the metal strip for preheating. The heat exchanger body is divided into at least three sections, each section having a regenerator. When the heat exchanger body is continuously or intermittently rotated, each section is provided with a path for successively repeating to pass a heating section combustion exhaust gas for applying a sensible heat of exhaust gas to the regenerator, a purging gas for removing debris sticking to the regenerator when applying the sensible heat of the heating section exhaust gas and a circulating gas for collecting the sensible heat of the regenerator and blowing the heat to the metal strip passing the preheating section to raise a temperature of the metal strip.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式