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

JPH08281381A MOLD FOR HORIZONTAL CONTINUOUS CASTING 失效
公开(公告)号：JPH08281381A
公开(公告)日：1996-10-29
申请号：JP8159695
申请日：1995-04-06
申请人： NIPPON STEEL CORP
发明人： TANNO HITOSHI , ICHIYAMA YASUTOMO , OGAWA TAKESHI , KAWAI HIROYUKI , ASO TOSHIRO
IPC分类号： B22D11/04 , B22D11/059
摘要： PURPOSE: To prevent hoot tear and clod shut crack at the defects of a steel by forming a specific metal-base thermal-sprayed film from the starting pt. of solidified shell developed on an inner surface at the end part of a copper alloy-made cylindrical mold contacting with molten steel approaching to a brake ring to the other end side of the mold. CONSTITUTION: The copper alloy-made cylindrical mold 7 forms the metal-base thermal-sprayed film 9 of 0.1-10.0mm thickness excellent in heat shock resistance, zinc resistance and wear resistance on the inner surface at the end part of the brake ring side. This metal-base film 9 is formed so as to satisfy the relationship I to the position from the starting position fo solidified shell developed on the inner surface at the end part of the mold 7 to the other end side of the mold 7. Wherein, (d) is the film thickness at 0.1-10.0mm, K is thermal conductivity (kcal/m.hr. deg.C) and L is the film length (mm) from the starting pt. of solidification. Further, as the metal-base thermal sprayed film 9, Co-base alloy, etc., is suitable and inn order to secure the sticking force of the copper alloy forming the mold with these alloy, it is effective to interpose an Ni-plating film.

2. 发明专利

JPH07266001A MOLD FOR HORIZONTAL CONTINUOUS CASTING 失效
公开(公告)号：JPH07266001A
公开(公告)日：1995-10-17
申请号：JP6252394
申请日：1994-03-31
申请人： NIPPON STEEL CORP
发明人： ASO TOSHIRO , TANNO HITOSHI , ICHIYAMA YASUTOMO , OGAWA TAKESHI , KAWAI HIROYUKI
IPC分类号： B22D11/04 , B22D11/059
摘要： PURPOSE:To provide a mold for stably obtaining a cast billet having good quality by preventing cold shut crack developed accompanied with the intermittent drawing-out of a horizontal continuous casting. CONSTITUTION:A film 15 composed of heat resistant alloy having low thermal conductivity is formed at 50mum-1mm thickness on the inner surface of the mold 11. The film forming range is made to be >=2 times of thickness at the reverse drawing-out side and >=2 times of thickness at the drawing-out side from a triple point and in the range of the drawing-out stroke or lower of one cycle. The thermal conductivity of the film 15 is desirable to be

3. 发明专利

JPS61287458A IMPACT BLADE FOR REPULSIVE TYPE CRUSHER 失效
公开(公告)号：JPS61287458A
公开(公告)日：1986-12-17
申请号：JP12635185
申请日：1985-06-12
申请人： NIPPON STEEL CORP , SUMITOMO CEMENT CO
发明人： DAITOKU KAZUMI , TANAKA YUKIO , SHIBUYA KYOICHI , OGAWA TAKESHI
IPC分类号： B02C13/09 , B02C13/28

4. 发明专利

JPH10183231A VACUUM-REDUCED PRESSURE REFINING METHOD AND VACUUM-REDUCED PRESSURE REFINING EQUIPMENT 失效
公开(公告)号：JPH10183231A
公开(公告)日：1998-07-14
申请号：JP35588896
申请日：1996-12-25
申请人： NIPPON STEEL CORP
发明人： SHIMOMURA KENSUKE , SADACHIKA MASARU , MORISHIGE HIROAKI , OGAWA TAKESHI
IPC分类号： C21C7/10
摘要： PROBLEM TO BE SOLVED: To execute the dust collection in vacuum-reduced pressure refining treatment by using a filter at a low cost without causing damage and burning, etc., of the filter. SOLUTION: A vacuum reduced pressure refining vessel 1, a drytype dust collector 3 using the filter 2 and a reduced pressure exhauster 4 are connected with an upstream side duct 5 and a downstream side duct 6, in order, and a gate valve 7 is arranged in the upstream side duct 5. At the time of starting the vacuum reduced pressure refining treatment, non-oxidizing gas is flowed at the upstream side from the gate valve 7, and after substantially replacing oxygen at the upstream side, the upstream side is closed, and after completing the closed condition at the upstream side, the gate valve 7 is opened and the dust collector 3 is worked. At the time of finishing the vacuum reduced pressure refining treatment, the gate valve 7 is closed and it is desirable to open to the atmosphere after receiving the pressure by flowing only the non-oxidizing gas into the upstream side, and further, to close the opening hole part at the dust collector 3 side at the time of waiting till starting the following vacuum reduced pressure refining treatment after finishing the vacuum reduced pressure refining treatment.

5. 发明专利

JPH10279056A STORAGE-THROWING DEVICE AND THROWING METHOD 失效
公开(公告)号：JPH10279056A
公开(公告)日：1998-10-20
申请号：JP9676797
申请日：1997-03-31
申请人： NIPPON STEEL CORP
发明人： SHIMOMURA KENSUKE , OKIMORI MAYUMI , SADACHIKA MASARU , TANAKA TOMOAKI , MIYATO TAKEAKI , OGAWA TAKESHI
IPC分类号： B65G47/19 , C21C7/10 , C22B9/20 , F27D3/10
摘要： PROBLEM TO BE SOLVED: To surely discharge the complexly deformed material such as lump, plate, rod, or paper-sharedder waste, by moving the poking sticks installed on a contraction part of which a sectional area is reduced downward, or a part where the flow is bent. SOLUTION: The blocking easily occurs on a lower edge part of a vacuum hopper 6, and on a part just under the vacuum hopper in a chute 11, which is bent, or of which a sectional area is reduced downward, when the lump, plate, rod or paperwaste like complexly deformed contents stored in the vacuum hopper 6 as a storage.throwing device, is dropped and thrown by the gravity by opening a damper 8 for throwing. The poking sticks 17a-17d are installed on these parts, and the poking sticks are moved forward and backward by the cylinders 18a-18d, so that the impact can be added to the stagnant contents. Whereby the jamming can be solved by driving the poking sticks 17a-17d, when the jamming occurs.

6. 发明专利

JPH10237535A VACUUM REFINING FURNACE 失效
公开(公告)号：JPH10237535A
公开(公告)日：1998-09-08
申请号：JP6019897
申请日：1997-02-28
申请人： NIPPON STEEL CORP
发明人： SHIMOMURA KENSUKE , IMOTO TADASHI , OKIMORI MAYUMI , OGAWA TAKESHI , TANAKA TOMOAKI
IPC分类号： C21C5/28 , C21C7/10 , C22B9/04
摘要： PROBLEM TO BE SOLVED: To prevent the metal and the slag from being adhered to a vacuum flange without using any flange cover in a refining furnace to perform the vacuum refining by fitting a seal lid so as to cover a throat part, and closely attaching the lid to the vacuum flange on a furnace body side. SOLUTION: A vacuum flange 10 is provided on an inclined part 8 of an outer circumferential surface of a refining furnace 1 from a nose 9 to a straight body part of the furnace or the straight body part therebelow. A dummy flange 11 for preventing the slag in which the outermost circumferential surface is present on the inner side of the inner circumferential surface at the lower end of a seal lid 4 and the outer side of the inner circumferential surface at the lower end of a dust-collecting hood for atmospheric refining, is provided between the nose 9 on the outer circumferential surface of the refining furnace 1 and the vacuum flange 10.

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