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1. 发明专利

JPH07155933A HAMMER TYPE DEBURRING DEVICE 失效
公开(公告)号：JPH07155933A
公开(公告)日：1995-06-20
申请号：JP30516893
申请日：1993-12-06
申请人： NIPPON STEEL CORP
发明人： MAEDA MASAHIRO
IPC分类号： B23D79/00 , B22D31/00
摘要： PURPOSE:To obtain a hammer type deburring device having long service life without damaging to a product and the deburring device by arranging a planer type hammer block as the hammer block at the position crossing over a flange. CONSTITUTION:The hammer 11 is composed of flat type hammer blocks 8 and the planer type hammer blocks 12. The flat type hammer block 8 is formed as a rectangular cross section in the plane containing a hammer shaft 7 and the tip part is formed as hitting surface 9. The planer type hammer block 12 is formed as almost U-shape cross section in the plane containing the hammer shaft 7 and fitted to the hammer shaft 7 so as to insert a flange 4 with legs parts 13 at both sides. Further, as the planer type hammer block 12 is formed to the symmetry in the right and the left sides to the flange 4 and the gravity center of the hitting part 14 is positioned to the center, even if the revolutional speed of a rotor 2 varies, moment does not act in the planer type hammer block 12. Therefore, the hammer block is not shifted in the right and the left sides and is stabilized even in the case of varying the revolutional speed.

2. 发明专利

JPS6345900B2 失效
公开(公告)号：JPS6345900B2
公开(公告)日：1988-09-12
申请号：JP21038083
申请日：1983-11-09
申请人： NIPPON STEEL CORP
发明人： MURASE SHOJI , MAEDA MASAHIRO , TANAKA KATSUHIKO , TERADA TSUTOMU
IPC分类号： B22D11/00 , B22D11/10 , B22D11/103 , B22D11/14 , B22D11/18

3. 发明专利

JPS6223652A DATA TRANSMISSION SYSTEM 失效
公开(公告)号：JPS6223652A
公开(公告)日：1987-01-31
申请号：JP16456185
申请日：1985-07-24
申请人： NEC CORP , NIPPON STEEL CORP
发明人： HASEGAWA YOSHIHIKO , MAEDA MASAHIRO , ANDO NOBORU , CHIKASAWA SUSUMU
IPC分类号： H04L12/437
摘要： PURPOSE:To eliminate a data transmission equipment having a fault without stopping once a data transmission line from a system by providing the transmission line of duplicated constitution as the transmission line and the 1st switch circuit and the 2nd switch circuit interlocked together as a connection means. CONSTITUTION:Two switch circuits 2a, 2b and the switch circuit 2a has connection terminals (a, b) to the data transmitter side and connection terminals (e, f) to the loop transmission side. The connection terminal (a) is connected to the connection terminal (e) and the connection terminal (b) is connected to the connection terminal (f) respectively in the switch circuit 2a and a connection terminal (c) is connected to a connection terminal (g) and a connection terminal (d) is connected to a connection terminal (h) respectively in the switch circuit 1b. In the 2nd connection state as above, the data transmitter 1a is connected to the loop transmission line 4, on the other hand, the data transmitter 1b is connected to the loop transmission line 3. The path representing the connection state is a path shown in one-dashed chain lines. That is, the connection between the data transmitters 1a, 1b and the loop transmission lines 3, 4 is replaced depending on the connection state.

4. 发明专利

JPS60102252A METHOD FOR STARTING POURING WITH TUNDISH IN MULTISTRAND CASTING 失效
公开(公告)号：JPS60102252A
公开(公告)日：1985-06-06
申请号：JP21038083
申请日：1983-11-09
申请人： NIPPON STEEL CORP
发明人： MURASE SHIYOUJI , MAEDA MASAHIRO , TANAKA KATSUHIKO , TERADA TSUTOMU
IPC分类号： B22D11/00 , B22D11/10 , B22D11/103 , B22D11/14 , B22D11/18
摘要： PURPOSE:To start surely pouring with a tundish by pouring a molten metal into the tundish while a sliding nozzle provided to nozzles is held open then opening fully stoppers and adjusting the operation of the sliding nozzle. CONSTITUTION:Plural nozzles 8 are inserted into the bottom 7 of a tundish 6 and stoppers 9 open and close the nozzles 8 via arms 10. The upper part of the nozzles 8 are first closed by the stoppers 9 and a sliding nozzle 11 is fully opened then a molten metal is poured into the tundish 6. When the molten metal poured into the tundish attains an adequate height, the stoppers 9 are held open and the opening degree of the SN device 11 is adjusted to match the drawing speed of a billet. The opening degree of the device 11 is made constant on stabilizing of the drawing speed. The starting of pouring with the tundish is made sure and the accident in casting is decreased by the above-mentioned method.

5. 发明专利

JPH09164456A DEVICE USED BOTH FOR LADLE TURRET AND MOLD ASSEMBLY CHANGING AND METHOD FOR CHANGING MOLD ASSEMBLY 失效
公开(公告)号：JPH09164456A
公开(公告)日：1997-06-24
申请号：JP32890895
申请日：1995-12-18
申请人： NIPPON STEEL CORP
发明人： MAEDA MASAHIRO , KURATANI HIDEYA
IPC分类号： B66C17/04 , B22D11/04 , B22D11/10 , B22D33/00 , B22D41/00 , B66C17/06
摘要： PROBLEM TO BE SOLVED: To provide a mold assembly changing device, in which the equipment costs of an overhead crane and a building are reduced and the changing work is easily executed in a short time at the time of changing the mold assembly, and a changing method thereof, in a continuous casting plant composed of a casting ridge arranged with the overhead crane and a continuous casting equipment and in the adjacent to this ridge, a maintenance ridge arranged with the overheat crane and the maintenance shop is arranged. SOLUTION: A column 10 is erected on a swing table 9 arranged near the continuous casting equipment 2 and the tip parts of one pair of supporting arms are supported by this column through a pin so as to be independently and vertically swingable in the same axis. Further, elevating/lowering levers 16a, 16b of elevating/lowering devices 15a, 15b are connected to the intermediate parts of the one pair of the supporting arms, respectively and holding tables 17a, 17b are connected with the tip parts of one pair of the supporting arms so as to be supportable to the horizontal direction, respectively. Mold assembly suspending tables 22 are arranged freely fittable/ separatable and engagable with this holding tables 17a, 17b to be used in the device for both of a ladle turret and a mold assembly changing.

6. 发明专利

JPH08290243A TWIN ROLL CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPH08290243A
公开(公告)日：1996-11-05
申请号：JP9378095
申请日：1995-04-19
申请人： NIPPON STEEL CORP
发明人： IMAMURA AKIRA , MAEDA MASAHIRO , KURATANI HIDEYA
IPC分类号： B22D11/20 , B22D11/06
摘要： PURPOSE: To make continuous casting feasible by casting while changing roll pushing force and casting speed based on the relationship between tundish molten steel temp. and roll pushing force/casting speed so as to maintain set casting thickness constant. CONSTITUTION: By detecting a rotating speed of cooling drums 1a, 1b with a speedometer 11 and controlling a rotating speed of the cooling drums 1a, 1b through a drive controller 10 so as to satisfy set condition, the pulling speed is controlled. Further, a molten metal surface S1, that is, arc angle is detected by a level meter 15, a sheet thickness by a gap meter 16, a drum cooling water inlet/outlet temp. difference is detected by a thermometer 12 and is converted to a heat transfer rate of roll by a computing element 13, also, a tundish temp. is detected by a molten metal thermometer 14. The roll pushing force control is executed so as to satisfy the set condition.

7. 发明专利

JPH07164112A TWIN ROLL TYPE STRIP CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPH07164112A
公开(公告)日：1995-06-27
申请号：JP31679993
申请日：1993-12-16
申请人： NIPPON STEEL CORP
发明人： MAEDA MASAHIRO , YAMADA MAMORU
IPC分类号： B22D11/06
摘要： PURPOSE:To execute continuous casting while keeping the casting thickness to the constant by deciding casting velocity, drawing velocity and the arc angle of a molten metal pool part and setting the revolutional velocity of drum and molten metal supplying quantity so as to satisfy the above values. CONSTITUTION:The casting width (w) and the casting thickness (d) are set and the casting velocity (molten steel casting quantity per unit time: W) is decided by the equation I based on the supplying quantity of the molten steel S and the supplying timing. Successively, the drawing velocity V is decided by the equation II and the arc angle theta by the molten steel pool 3 formed between a pain of cooling drums is decided by the equation III. The revolution velocity of the cooling drum and the molten steel supplying quantity into the molten steel pool S are set so as to satisfy the decided casting velocity, drawing velocity and the arc angle value. By this method, the continuous casting is executed while keeping the casting thickness (d). In the equation I, II and III, H is casting molten steel quantity (t) in this charge, T is casting scheduled time (min) in this charge, gamma is sp. gr. of a cast slab, D is drum diameter (m), A, alpha are factors. By this method, the operatability and the yield of the continuous casting can be improved.

8. 发明专利

JPS6021150A PRODUCTION OF BILLET HAVING HIGH QUALITY 失效
公开(公告)号：JPS6021150A
公开(公告)日：1985-02-02
申请号：JP12914083
申请日：1983-07-15
申请人： NIPPON STEEL CORP
发明人： KUSANO AKIHIKO , MAEDA MASAHIRO , OKIMORI MAYUMI , TERADA TSUTOMU , FUKUNAGA SHINICHI
IPC分类号： B22D11/128 , B22D11/12
摘要： PURPOSE:To cast continuously a billet having

9. 发明专利

JPH0466638B2 失效
公开(公告)号：JPH0466638B2
公开(公告)日：1992-10-23
申请号：JP21137488
申请日：1988-08-25
申请人： NIPPON STEEL CORP
发明人： NOMURA YUKIHIRO , MAEDA MASAHIRO
IPC分类号： C02F1/62 , C02F1/64 , C02F1/66 , C02F1/68

10. 发明专利

JPS6223651A DATA TRANSMISSION EQUIPMENT 失效
公开(公告)号：JPS6223651A
公开(公告)日：1987-01-31
申请号：JP16456085
申请日：1985-07-24
申请人： NEC CORP , NIPPON STEEL CORP
发明人： HASEGAWA YOSHIHIKO , MAEDA MASAHIRO , ANDO NOBORU
摘要： PURPOSE:To automate terminal connection changeover by allowing a data transmitter to identify whether the system is the operating system or the standby system based on an ER signal of the CCITT recommendations from a terminal device and inserting a data signal of the terminal device selected by the result of identification into a loop data transmission line. CONSTITUTION:An input signal (a) from the loop data transmission line 30 is outputted to a terminal device 20 via a reception circuit 1 as an output signal (b) and becomes an output signal (f) to the loop data transmission line 30 via a data insertion circuit 5. An input signal (c) from the terminal device 20 is stored at first in a transmission circuit 2, and a timing signal (e) from the control circuit 3 is outputted to the data insertion circuit 5 via a AND circuit 4 when the timing signal (e) from the control circuit 3 is logical 1 at a prescribed time slot and a data terminal ready signal (d) is inputted from the terminal device 20 with a level of logical 1. An output signal of the transmission circuit 2 is selected by the data insertion circuit 5 succeedingly and the input signal (c) from the terminal device 20 is outputted from the transmission circuit 2 to the loop data transmission circuit 30.

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