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1. 发明专利

JPH04333303A SKIN PASS ROLLING METHOD FOR STAINLESS STEEL STRIP 失效
公开(公告)号：JPH04333303A
公开(公告)日：1992-11-20
申请号：JP10560891
申请日：1991-05-10
申请人： KAWASAKI STEEL CO
发明人： SHIOKAWA TAKASHI , TAKADA MASAKAZU , SHIRAISHI MASAKI
IPC分类号： B21B1/22 , B21B1/28 , B21B3/02 , B21B45/02
摘要： PURPOSE:To simultaneously attain the prevention of the generation of flaws and improvement of surface gloss in skin pass rolling of an annealed stainless steel strip after cold rolling. CONSTITUTION:Rolling mill oil is sprayed from spraying nozzles 4 for rolling oil which are provided just before a 1st stand 2 and wet skin pass rolling is executed at the 1st stand 2. High drawing down is executed under the state of thin film without spraying rolling mill oil at a 2nd stand 3, and 3rd stand, if necessary.

2. 发明专利

JPH01287224A IN-FURNACE TEMPERATURE CONTROL METHOD FOR CONTINUOUS HEAT TREATMENT FURNACE 失效
公开(公告)号：JPH01287224A
公开(公告)日：1989-11-17
申请号：JP11509588
申请日：1988-05-12
申请人： KAWASAKI STEEL CO
发明人： YAGINUMA HIROSHI , YAMAZAKI YUKIHIRO , TAKADA MASAKAZU , ITO MASAHIKO
IPC分类号： C21D9/56 , C21D11/00
摘要： PURPOSE:To enable the rapid control of an in-furnace temp. by adjusting a fuel charge quantity and combustion air quantity a max. flow rate if the in- furnace temp. is below a permissible range and adjusting the fuel charge quantity to a min. flow rate and the combustion air quantity to a max. flow rate if said temp. is above said range. CONSTITUTION:The fuel charge quantity and the combustion air quantity are adjusted to the max. flow rate if the in-furnace temp. falls below the permissible range by a large fluctuation in the furnace temp. or a change of the set value of the furnace temp., etc., in the in-furnace temp. control method by a PID method, etc. for the continuous heat treatment furnace. On the other hand, the fuel charge quantity is adjusted to the min. flow rate and the combustion air quantity is adjusted to the max. flow rate or the fuel charge quantity and the combustion air quantity are adjusted to the min. flow rat and a cooling gas is blown into the furnace if the in-furnace temp. rises above the permissible range. The furnace temp. is thereby rapidly raised or dropped to the prescribed range regardless of the large thermal inertia of the furnace, by which the in- furnace temp. is controlled.

3. 发明专利

JPS6314821A ANNEALING FURNACE FOR STEEL STRIP IN CONTINUOUS ANNEALING AND PICKLING LINE 失效
公开(公告)号：JPS6314821A
公开(公告)日：1988-01-22
申请号：JP15689986
申请日：1986-07-03
申请人： KAWASAKI STEEL CO
发明人： YAGINUMA HIROSHI , TAKADA MASAKAZU , ITO MASAHIKO
IPC分类号： C21D9/56
摘要： PURPOSE:To eliminate the time loss by the heating-up and cooling-down in an annealing furnace of a continuous annealing and pickling line and to permit the efficient selection of annealing and non-annealing by installing freely movable loopers into said annealing furnace and changing the position thereof so that the temp. of a steel strip in the annealing furnace can be freely adjusted. CONSTITUTION:The long-sized steel strip 4 subjected to cold rolling is continuously annealed in the annealing furnace 12 and is then passed through a cooling zone 14, then to a pickling tank 16 where the surface scale formed on the steel strip during the annealing is dissolved away. The plural loopers 22 which can move in the furnace are mounted to the heating zone 18 and holding zone in the annealing furnace 12 and the positions of the loopers 22 are corrected according to the annealing conditions (holding temp. and annealing time) of the steel strip 4 to be annealed. More specifically, the loopers are moved to the inlet and outlet sides of the annealing furnace 12 to minimize the distance at which the steel strip 4 passes the heating zone 18 and the holding zone 20 when the steel strip requiring no annealing passes the inside of the annealing furnace 12. The loopers 22 are moved to the positions (right side in the figure) further from the inlet and outlet and the necessary heating and holding treatments are executed in the case of the steel strip requiring the annealing. The annealing and non-annealing operations are quickly and easily selected simply by moving the loopers 22.

4. 发明专利

JPS61199516A STRAIGHTENING METHOD OF HOT ROLLED STAINLESS STEEL STRIP 失效
公开(公告)号：JPS61199516A
公开(公告)日：1986-09-04
申请号：JP3939585
申请日：1985-02-28
申请人： KAWASAKI STEEL CO
发明人： ITO MASAHIKO , WATANABE TOSHIO , TAKADA MASAKAZU
IPC分类号： B21D1/05 , B21D1/02
摘要： PURPOSE:To make the effect of work hardening extremely small, to make the steepness not more than a specific value and to straighten the camber of a steel strip into the state of practically no problem, by providing at least a specific elongation rate to a hot rolled stainless steel strip by roll straightening. CONSTITUTION:A hot rolled stainless steel strip 2 is straightened by straightening rolls 6 installed between the deflector rolls 4 of a straightening device, and is provided with at least 0.5% elongation rate. In this case, the effect of work hardening is extremely small, and the steepness lambda expressed by an equation is made to

5. 发明专利

JPH0757362B2 失效
公开(公告)号：JPH0757362B2
公开(公告)日：1995-06-21
申请号：JP28171689
申请日：1989-10-31
申请人： KAWASAKI STEEL CO
发明人： KENMOCHI KAZUHITO , WATANABE JUICHIRO , YARITA YUKIO , KAKIUCHI HIROYUKI , TAKADA MASAKAZU , KISHIDA AKIRA
IPC分类号： B24B7/12 , B21B1/22 , B21B3/02 , B21B27/10 , B21B45/00 , B21B45/06

6. 发明专利

JPH0332608B2 失效
公开(公告)号：JPH0332608B2
公开(公告)日：1991-05-14
申请号：JP11484586
申请日：1986-05-21
申请人： KAWASAKI STEEL CO
发明人： ITO MASAHIKO , TAKADA MASAKAZU , YAGINUMA HIROSHI
IPC分类号： B65H27/00 , C21D9/56 , C23G3/02

7. 发明专利

JPH01228776A GRINDING METHOD WITH HYDROUS GRINDING OIL 失效
公开(公告)号：JPH01228776A
公开(公告)日：1989-09-12
申请号：JP5161588
申请日：1988-03-07
申请人： KAWASAKI STEEL CO
发明人： YAGINUMA HIROSHI , TAKADA MASAKAZU , ITO MASAHIKO
IPC分类号： B24B7/12 , B24B21/04 , B24B55/03
摘要： PURPOSE:To maintain a grinding performance at its maximum level and allow a fire never to break out by adding moisture to grinding oil so as to obtain the moisture content of oil which has been adjusted according to the situation where sparks occurs at grinding. CONSTITUTION:The automatic sampling and analysis of moisture contained in grinding oil from a tank 2 are performed, so that the current moisture content of the oil is obtained. And the value of the result is transmitted to a sequencer, so that the quantity of moisture to be supplied is obtained therein according to the total oil quantity (from level instruments 1 and 2) at that time and a predetermined moisture content for each workpiece. Consequently, when the workpiece is a material difficult to be ground (material where sparks easily occur), its grinding is carried out while the moisture is automatically supplied for the prevention of a fire. And when a normal ground material (material where sparks never occur) is adopted, the supply of the moisture is canceled, and the moisture is evaporated due to grinding heat, so that a grinding performance can be enhanced.

8. 发明专利

JPS60128274A METHOD AND DEVICE FOR PREVENTING GENERATION OF PATTERNED SCALE IN PICKLING OF STEEL STRIP 失效
公开(公告)号：JPS60128274A
公开(公告)日：1985-07-09
申请号：JP23512783
申请日：1983-12-15
申请人： KAWASAKI STEEL CO
发明人： ITOU MASAHIKO , SATOU RIYUUZOU , TAKADA MASAKAZU , YOSHIMOTO TAKESHI
IPC分类号： C23G1/08 , C23G3/02
摘要： PURPOSE:To prevent generation of patterned scale in pickling of a stainless steel strip by shutting off the surface of the stainless steel strip from the atm. air in the inlet and outlet of each pickling tank in a continuous annealing and pickling line. CONSTITUTION:Sprayers A, B, C are installed between a synchronizing roll 8 and wringer rolls 3a, b, c and water or pickling soln. is sprayed to a stainless steel strips in the inlet and outlet of pickling tanks 1, 2 to shut off the surface of the strip S stuck thereon with the pickling soln., etc. from the atm. air in a pickling section having plural pickling tanks 1, 2 in a continuous annealing and pickling line for the strip S. The shut-off of the steel strip surface from the atm. air is also possible by spraying or enclosing, etc. of a non-oxidative gas in addition to the above-mentioned spraying of the water, pickling soln., etc. The oxidation by the oxygen in the atm. air and the pickling soln. is prevented and the formation of patterned scale is prevented by the above-mentioned method.

9. 发明专利

JP2541611B2 失效
公开(公告)号：JP2541611B2
公开(公告)日：1996-10-09
申请号：JP5161588
申请日：1988-03-07
申请人： KAWASAKI STEEL CO
发明人： YAGINUMA HIROSHI , TAKADA MASAKAZU , ITO MASAHIKO
IPC分类号： B24B7/12 , B24B21/04 , B24B55/03

10. 发明专利

JPH0558839B2 失效
公开(公告)号：JPH0558839B2
公开(公告)日：1993-08-27
申请号：JP23622188
申请日：1988-09-22
申请人： KAWASAKI STEEL CO
发明人： ITO MASAHIKO , KAIHARA RIICHI , TAKADA MASAKAZU , YAGISHIMA AKYA , YAGINUMA HIROSHI
IPC分类号： B23D31/00 , B23K26/21 , B23K26/26 , B23K26/00

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