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1. 发明专利

JP2000070764A ROLLING OIL CLEANER AND CLEANING METHOD 失效
公开(公告)号：JP2000070764A
公开(公告)日：2000-03-07
申请号：JP24061798
申请日：1998-08-26
申请人： NIPPON KOKAN KK , NIIGATA UOSHINTON KK
发明人： SUGIMOTO SHUICHI , NAKAYAMA YASUTOSHI , MATSUKAGE SEISAKU , FUJITA YASUHIRO , FUKUMOTO KANJI
IPC分类号： B04C5/26 , B21B45/02
摘要： PROBLEM TO BE SOLVED: To clean a rolling oil circulated and used in the cold rolling of a steel strip. SOLUTION: A rolling oil used in a rolling device 1 and contg. foreign matter is introduced into a first centrifugal separator 4. The rolling oil concentrated in foreign matter is discharged into a second centrifugal separator 5, and the clean rolling oil freed from foreign matter is simultaneously discharged into a third centrifugal separator 6, and the rolling oil concentrated in foreign matter is discharged into a fourth centrifugal separator 7. The rolling oil concentrated in foreign matter discharged from the first and third separators 4 and 6 is further concentrated in foreign matter in the second and fourth separators 5 and 7 to separate foreign matter, and the separated foreign matter is discharged outside the system. The clean rolling oil freed from foreign matter is discharged into a circulating line on the upstream side of the first separator 4 or on the downstream side of the first or third separator 4 or 6.

2. 发明专利

JPH08276362A TRUING ELECTRODE FOR CONDUCTIVE GRINDING WHEEL AND TRUING METHOD 失效
公开(公告)号：JPH08276362A
公开(公告)日：1996-10-22
申请号：JP8001395
申请日：1995-04-05
申请人： NIPPON KOKAN KK
发明人： YOSHIOKA OSAMU , HARADA TADASHI , FUJITA YASUHIRO , MANABE TOSHIKI
IPC分类号： B24B53/00 , B23H5/00
摘要： PURPOSE: To prevent a milling edger and the like from being defectively ground, and efficiently grind them by forming a contact part of the grinding wheel for a truing electrode out of the various kinds of metals such as Ti, Zr and Hf, or out of a plurality of alloys. CONSTITUTION: A grinding body 101 which is formed out of conductive combining material mixed with ultrafine abrasive grains, is provided for the outer circumference of a disc shaped conductor 102 so as to be formed into a conductive grinding wheel 1. A section in contact with the grinding surface of the grinding wheel 1 for a truing electrode 201, is formed out of either one of the various kinds of metals such as Ti, Zr and Hf, or more than two alloys. The aforesaid truing electrode 201 is so held that it can be cut in by a tailstock 401 which is traversely moved over a grinding bed. Both sides of the truing electrode 201 are formed into each tapered part, and grooves 302 are formed in a parallel part between the tapered part. By this constitution, sludge is so designed as to be hardly accumulated, but as to be easily washed out by conductive working solution.

3. 发明专利

JPH08257907A DRESSING ELECTRODE DEVICE FOR CONDUCTIVE GRINDING WHEEL AND DRESSING METHOD 失效
公开(公告)号：JPH08257907A
公开(公告)日：1996-10-08
申请号：JP6954995
申请日：1995-03-28
申请人： NIPPON KOKAN KK
发明人： YOSHIOKA OSAMU , HARADA TADASHI , FUJITA YASUHIRO , MANABE TOSHIKI
IPC分类号： B24B53/00 , B23H5/00
摘要： PURPOSE: To attain a finished ground surface which is highly precise and good by installing one or more dressing electrodes for dressing a grinding surface of a grinding wheel and one or more dressing electrodes, per one side, for dressing the end of the grinding surface of the grinding wheel at one side or both sides of the grinding wheel. CONSTITUTION: A dressing electrode 2 for dressing the grinding surface of a grinding wheel is fitted so that the grinding surface of the grinding wheel 1 may be dressed in the parallel direction to it, and a dressing electrode 3 for end dressing is fitted so that both the ends of the grinding surface of the grinding wheel 1 may be processed in a tapered form. A controller 4 for the dressing electrode 2 is fitted so that the dressing electrode 2 may reciprocate in the orthogonal direction to the grinding wheel rotating direction of the grinding wheel 1. A controller 5 for the dressing electrode 3 is installed so that the dressing electrode 3 may reciprocate at such an angle as to chamfer the grinding surface of a grinding wheel 1 into the desired tapered form. The dressing current of the respective electrodes 2, 3 is controlled by a dressing current controller 11 according to the load current of a grinding wheel motor 6 detected by a detector 8.

4. 发明专利

JP2002035836A TENSION LEVELER 失效
公开(公告)号：JP2002035836A
公开(公告)日：2002-02-05
申请号：JP2000224730
申请日：2000-07-26
申请人： NIPPON KOKAN KK
发明人： FUJITA YASUHIRO , KATAOKA HISAAKI
IPC分类号： B21D1/05
摘要： PROBLEM TO BE SOLVED: To provide a tension leveler suitable for continuously correcting metal strips having different pushed amounts. SOLUTION: In the tension leveler correcting a shape of a metal strip, the tension leveler having a plural of a pushing amount adjusting means is provided with a fixed stopper 10 installed inside the housing in a protrusible manner, an adjusting block 12 movably engaging with a lower portion of the fixed stopper and also having an engaging stair-like face, and an engaging block 11 installed in an end portion of an upper face of a lower frame 5.

5. 发明专利

JPH08257909A CONDUCTIVE GRINDING WHEEL FOR GRINDING WORK 失效
公开(公告)号：JPH08257909A
公开(公告)日：1996-10-08
申请号：JP6955195
申请日：1995-03-28
申请人： NIPPON KOKAN KK
发明人： YOSHIOKA OSAMU , HARADA TADASHI , FUJITA YASUHIRO , MANABE TOSHIKI
IPC分类号： B24B53/00 , B23H5/00
摘要： PURPOSE: To solve a concern of feed marks generated by a strong contact of both side parts of a grinding wheel while grinding a cylindrical element such as a roll, by decreasing abrasive grain concentration at both the side parts of a conductive grinding wheel for grinding by a particular amount smaller than other area. CONSTITUTION: By forming a grinding band 101 made of a compound of conductive binder and super abrasives without seams in the peripheral direction with prescribed thickness on the outer periphery of a disc-shaped conductive element 102, a conductive grinding wheel 1 is formed. By using a seamless grinding wheel as the grinding wheel 1, grinding can be conducted over the whole periphery of the grinding wheel, and chattering marks can be prevented from occurring. The grinding band 101 is formed so as to change the distribution degree of abrasive grain in the width direction. Abrasive grain concentration at both the side parts (a) of the grinding wheel is 85% and the distribution degree in the middle part (b) is 100%. It is thus possible to decrease contact pressure with a material to be processed at both the side parts (a), preventing feed marks from occurring.

6. 发明专利

JPH08257908A GRINDING WHEEL FOR GRINDING WORK AND CONDUCTIVE GRINDING WHEEL 失效
公开(公告)号：JPH08257908A
公开(公告)日：1996-10-08
申请号：JP6955095
申请日：1995-03-28
申请人： NIPPON KOKAN KK
发明人： YOSHIOKA OSAMU , HARADA TADASHI , FUJITA YASUHIRO , MANABE TOSHIKI
IPC分类号： B24B53/00 , B23H5/00
摘要： PURPOSE: To provide uniform grinding in the circumferential direction of a disc-shaped grinding wheel and prevent chattering marks from occurring by fitting a conductive grinding belt in the circumferential direction integrally without seams at the external circumference of the conductive grinding wheel. CONSTITUTION: A conductive wheel 103 whose inner circumference is combined with the step-wise external circumference of the conductive wheel 102 through a layered vibration isolating material 104 such as epoxy resin and synthetic resin resinoid, having high elasticity and which is formed into a step-wise shape in its cross section is installed at the external circumference of the conductive wheel 102 whose external circumference is formed into a step-wise shape in its cross section, and is fixed by bolts 105. A grinding belt 101 is formed integrally without seams at the cylindrical external circumference of the conductive ring 103 to constitute conductive grinding wheel 1. The grinding belt 101 is formed by shaping super abrasives with conductive binder which is made up of various kinds of metals such as copper, silver, platinum, aluminum, zinc, titanium, nickel, chromium, cobalt, magnesium, iridium and beryllium or alloys made of more than two of these metals.

7. 发明专利

JPH0557342A WINDER FOR STEEL BAND 失效
公开(公告)号：JPH0557342A
公开(公告)日：1993-03-09
申请号：JP22605891
申请日：1991-09-05
申请人： NIPPON KOKAN KK
发明人： FUJITA YASUHIRO , MORITA MITSUYASU , KIMURA NOBORU , ITO YOSHIHIDE
IPC分类号： B21C47/02 , B21C47/30 , B65H18/04 , B65H75/24
摘要： PURPOSE:To prevent a segment and a collar from being damaged by setting a circular ring on the outer side of the segment and pushing the circular ring to the tapered part of the segment. CONSTITUTION:A press plate 6, a radial bearing 7, a bearing case 8, a thrust bearing 9 and a circular ring 2 are moved by reciprocating a cylinder rod 5 in one body in the axial direction of a winder. When winding is begun, the cylinder rod 5 is drawn in so that the circular ring 2 is pushed to the tapered part 1 of the segment 21. When winding is begun under such a state, the circular ring 2 rotates with the segment 21 while pushing the segment 21 strongly. Consequently, since the circular ring 2 pushes the tapered part 1 of the segment 21, the segment 21 does not bend.

8. 发明专利

JPH08257910A DRESSING ELECTRODE AND GRINDING DEVICE FOR GRINDING WHEEL FOR GRINDING WORK 失效
公开(公告)号：JPH08257910A
公开(公告)日：1996-10-08
申请号：JP6955295
申请日：1995-03-28
申请人： NIPPON KOKAN KK
发明人： YOSHIOKA OSAMU , HARADA TADASHI , FUJITA YASUHIRO , MANABE TOSHIKI
IPC分类号： B24B53/00 , B23H5/00
摘要： PURPOSE: To prevent generation of a feed mark and conduct efficient grinding by forming a dressing electrode for overall width which has particular constitution and traverses in a parallel direction to the grinding wheel spindle center so as to have a larger width than the sum of a grinding wheel width and a traversing distance. CONSTITUTION: In a dressing electrode 2 for overall width used for dressing the grinding surface (grinding band) 101 of a grinding wheel 1, a part brought into contact with the grinding surface 101 is formed out of a composition consisting of any metal of titanium, zirconium and hafnium which facilitates generation of a discharge arc and has excellent grinding ability, discharge arc and abrasion resistance and corrosion resistance or alloy of more than two of them. The dressing electrode 2 for overall width is formed so as to have a larger width than the total of a grinding wheel width and a traversing distance in the parallel direction to the spindle of the grinding wheel 1. It is thus possible to provide such dressing as not to generate impossible grinding resulting from clogging or an insufficient amount of abrasive grain protrusion in a part of the grinding wheel in the width direction.

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