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1. 发明专利

JPH1018057A METHOD FOR PHOTOETCHING AND ITS EQUIPMENT 失效
公开(公告)号：JPH1018057A
公开(公告)日：1998-01-20
申请号：JP17507296
申请日：1996-07-04
申请人： SUMITOMO METAL IND
发明人： KURITA KOICHI , IMASAKA SHINICHI , HARA KAZUNORI , KITA ISATO
IPC分类号： C23F1/00 , C23F1/08 , H01J9/14 , H01L23/50 , H05K3/06
摘要： PROBLEM TO BE SOLVED: To provide a photoetching method and its equipment capable of uniform etching over the whole surface of a sheet to be etched. SOLUTION: When etching is performed by spraying the etching solution on the surface of a sheet 1 to be etched while it is carried, the flow rate of the etching solution is measured for each of a plurality of spray piping 2 provided in the width direction of the sheet, and the flow rate of the etching solution is controlled for each piping so that the prescribed side etching quantity is obtained based on the relationship between the preliminarily obtained flow rate deviation of the etching solution and the side etching quantity deviation, or the relationship between the flow rate of the etching solution and the etching quantity deviation in the X-Y direction, or so that the preliminarily calculated flow rate is attained according to the condition in performing the etching such as the line speed and reactivity of the etching solution. This method can be easily performed by an equipment provided with flow meter 4 and a valve 5 for adjustment.

2. 发明专利

JPH06226196A COATING METHOD 失效
公开(公告)号：JPH06226196A
公开(公告)日：1994-08-16
申请号：JP3452993
申请日：1993-01-30
申请人： SUMITOMO METAL IND , MITSUBISHI HEAVY IND LTD
发明人： KURITA KOICHI , FUKUSHIMA TAKEO , YANAGI KENICHI
IPC分类号： B05C5/00 , B05D1/30
摘要： PURPOSE:To form a smooth and beautiful coating film on the surface of a material to be coated with good productivity. CONSTITUTION:A nozzle 15 with a slit-shaped opening is disposed close to a coating material flow guide board 14 for flowing down and a coating material is pushed out from the nozzle to the smooth face of the coating material flow guide board and applied as it is to a material 6 to be coated in the form of curtain-shaped coating material flow 8 from the lower end of the plate face.

3. 发明专利

JPH06226195A CURTAIN FLOW COATING METHOD 失效
公开(公告)号：JPH06226195A
公开(公告)日：1994-08-16
申请号：JP3452893
申请日：1993-01-30
申请人： SUMITOMO METAL IND , MITSUBISHI HEAVY IND LTD
发明人： KURITA KOICHI , FUKUSHIMA TAKEO , YANAGI KENICHI
IPC分类号： B05C5/00 , B05D1/30
摘要： PURPOSE:To form a uniform and beautiful coating film on a face to be coated simply and with good productivity and to change the color with good performance. CONSTITUTION:In the roller curtain flow coating method in which a coating material is fed onto a rotating coating roll 4, scraped by a doctor blade 6 and flowed down in the curtain shape 7 to coat a material 1 to be coated, a nozzle with a slit-shaped opening or a die 11 is disposed close to the coating roll 4, and the coating material is fed by the nozzle or the die 11 to perform the uniform and beautiful coating without the necessity of using doctor roll unlike the methods heretofore available.

4. 发明专利

JPH06142855A TAPPING TEMP. CONTROLLING METHOD OF TUNDISH HAVING THREE STRANDS AND ITS TUNDISH 失效
公开(公告)号：JPH06142855A
公开(公告)日：1994-05-24
申请号：JP31630792
申请日：1992-10-30
申请人： SUMITOMO METAL IND
发明人： KURITA KOICHI
IPC分类号： B22D11/00 , B22D11/10 , B22D11/11 , B22D11/112 , B22D11/116 , B22D11/117 , B22D11/18
摘要： PURPOSE:To enable control to make uniform a tapping temp. of each strand of a tundish having three strands furnished with a plasma heating device. CONSTITUTION:In the tundish 4 having three strands 1, 2, 3 furnished with a plasma heating device 6, a opening area A of a gate 7 arranged in a molten metal flow passage and an installation position of the plasma heating device 6 are controlled to make uniform a tapping temp. of each strand. Accordingly, by making uniform the tapping temp. of each strand, the quality of ingots among three strands is made uniform, also making low temp. casting possible.

5. 发明专利

JPH03274208A METHOD FOR CONTROLLING COOLING OF FURNACE BOTTOM IN BLAST FURNACE 失效
公开(公告)号：JPH03274208A
公开(公告)日：1991-12-05
申请号：JP7393290
申请日：1990-03-23
申请人： SUMITOMO METAL IND
发明人： KURITA KOICHI
IPC分类号： C21B7/10
摘要： PURPOSE:To keep temps. of molten iron and slag in a furnace to the constant and to flexibly cope with fluctuation of production in the blast furnace by arranging an overflow type cooling water receiver for spraying water pipe to side wall part of furnace bottom and executing cooling control in the range of the prescribed height from a bottom base in the blast furnace. CONSTITUTION:The cooling water receiver 14 is arranged as projecting to iron shell 12 of the side wall 11 at the furnace bottom within the range of 2.8m height from the bottom base in the blast furnace, and a drainage pipe 15 with a valve 16 is connected with this and further, a guide groove 17 for receiving and flowing down the overflow water is arranged. The showered cooling water in the spraying water pipe 13 is received with the cooling water receiver 14 below this and in the case of closing the valve 16. this is caused to overflow and flow into the guide groove 17 to cool the side wall 11 at the furnace bottom. Further, in the case of opening the valve 16, this is drained with dranage pipe 15 to stop the cooling of the side wall at the furnace bottom below the cooling water receiver 14. By this method, heat conducting quantity can be controlled only with opening/closing control of the valve 16.

6. 发明专利

JPH02182870A MANUFACTURE OF HOT DIP GALVANIZED STEEL SHEET 失效
公开(公告)号：JPH02182870A
公开(公告)日：1990-07-17
申请号：JP243689
申请日：1989-01-09
申请人： SUMITOMO METAL IND
发明人： KURITA KOICHI
IPC分类号： C23C2/00 , C23C2/06 , C23C2/20
摘要： PURPOSE:To regulate the atmosphere in a sealing box to an oxidizing atmosphere and to obtain a plated steel sheet having attractive surface by shielding the part between fluid supports and a sealing box by a flexible sealing material and spraying a nonoxidizing gas on the surface of a steel hoop via the supports. CONSTITUTION:A couple of fluid supports 12 is disposed in a manner to be opposed to each other in a sheet-passing part 11-1 in the ceiling part of a sealing box 11 by means of torsion bars 15, etc., and the part between the fluid support 12 and the sealing box 11 is surrounded by flexible sealing materials 13 for air shielding. A steel hoop 1 drawn out of a molten zinc bath 14 is subjected to the control of zinc coating weight in the sealing box 11 with nonoxidizing atmosphere by means of gas wiping nozzles 4 and then passed through the part between the fluid supports 12. Since the sheet-passing opening 11-1 of the sealing box 11 is sealed by the above-mentioned elastically supported fluid supports 12 and flexible sealing materials 13, the infiltration of the outside air can be prevented even if the steel hoop 1 vibrates. Accordingly, the oxidation of the hot-dipped surface can be inhibited.

7. 发明专利

JPH0280545A METHOD FOR PREVENTING SPLASH OF HOT DIPPING BATH 失效
公开(公告)号：JPH0280545A
公开(公告)日：1990-03-20
申请号：JP23284488
申请日：1988-09-17
申请人： SUMITOMO METAL IND
发明人： KURITA KOICHI
IPC分类号： C23C2/20 , C23C2/24
摘要： PURPOSE:To prevent the development of splash from hot dipping bath by vertically applying magnetic field to surface of the hot dipping both at the same time at the time of executing gas wiping on front and back surfaces of a steel plate drawing up from the hot dipping bath. CONSTITUTION:The steel plate 1 dipped into the plating bath 2 is vertically drawn up and the front and back surfaces of the steel plate 1 are gas-wiped with a wiping nozzle 4 to make the uniform prescribed thickness of the plating thickness on the products. Then, the magnetic pole 9 in the plating bath 2 and the magnetic pole 10 between the nozzle 4 and the hot dipping bath 2 are arranged and the magnet is constituted by connecting both poles as U-shape, and the magnetic field is vertically applied to the surface of the plating bath 2 together with the gas wiping. By this method, ripple of the hot dipping bath 2 caused by influence of the wiping gas flow is restrained and the development of splash is reduced.

8. 发明专利

JPH0120203B2 失效
公开(公告)号：JPH0120203B2
公开(公告)日：1989-04-14
申请号：JP16829881
申请日：1981-10-20
申请人： SUMITOMO METAL IND
发明人： KURITA KOICHI
IPC分类号： C21B5/00

9. 发明专利

JPH0118963B2 失效
公开(公告)号：JPH0118963B2
公开(公告)日：1989-04-10
申请号：JP21383581
申请日：1981-12-30
申请人： SUMITOMO METAL IND
发明人： KURITA KOICHI , KARYA JUNJI
IPC分类号： C21B5/00

10. 发明专利

JPS61147804A BLAST FURNACE OPERATING METHOD 失效
公开(公告)号：JPS61147804A
公开(公告)日：1986-07-05
申请号：JP26696884
申请日：1984-12-18
申请人： SUMITOMO METAL IND
发明人： KURITA KOICHI , KAWAGUCHI YOSHIZUMI
IPC分类号： C21B5/00
摘要： PURPOSE:To prevent the formation of an inert zone in a blast furnace by sampling the raw material in the furnace from the shaft or belly part of the furnace during the operation of the blast furnace, measuring actually the reducibility and average grain size thereof, comparing the same with a predetermined reference value and adjusting the blast rate from a tuyere. CONSTITUTION:The raw material in the blast furnace is sampled by boring at plural points in the circumferential direction in the shaft or belly part of the blast furnace in the operation thereof. The grain size and reducibility of the sampled raw material are measured and the blast rate from the blast furnace tuyere is increased in a 50-100Nm /min range for each one tuyere when the measured values thereof are below the preset reference values. The inert zone formed in the blast furnace is decreased and the condition of the blast furnace is stabilized.

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