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

JP2000064007A CONTINUOUS HOT DIP METAL PLATING DEVICE, BEARING FOR CONTINUOUS HOT DIP METAL PLATING DEVICE AND ROLL FOR CONTINUOUS HOT DIP METAL PLATING DEVICE 失效
公开(公告)号：JP2000064007A
公开(公告)日：2000-02-29
申请号：JP24964399
申请日：1999-09-03
申请人： HITACHI LTD
发明人： OKOCHI NORIHIKO , KAGOHARA HIROMI , HAMA HIROSHI , NAKAGAWA MOROO , OGOSHI HITOSHI , NAKAYAMA YOSHITAKA
IPC分类号： C23C2/00
摘要： PROBLEM TO BE SOLVED: To reduce friction coefficient in a sliding part in a hot dip metal plating bath and to improve its slidability by composing at least either the shaft of a roll or the sliding part of a bearing of a ceramic sintered body contg. a material excellent in solid lubricity. SOLUTION: At least either the bearing of a roll or the sliding part of a bearing in a continuous hot dip metal plating device is composed of a ceramic sintered body contg. a material excellent in solid lubricity. For example, either the bearing of the roll or the sliding part of the bearing is composed of sialon, and the other is composed of a ceramic sintered body as an SiC-C composite material. Or, either the shaft or the sliding part of the bearing is composed of a ceramic sintered body dispersedly incorporated with a material excellent in lubricity by 1 to 50 vol.%. As for the material having solid lubricity, preferably, carbon powder having

2. 发明专利

JPH0890016A ROLLING MILL 失效
公开(公告)号：JPH0890016A
公开(公告)日：1996-04-09
申请号：JP22475594
申请日：1994-09-20
申请人： HITACHI LTD
发明人： OKOCHI NORIHIKO , KAWAHIGASHI TAMITO , HIRAGA MAKOTO
IPC分类号： B21B27/00 , B21B13/02 , B21B27/02
摘要： PURPOSE: To improve working precision in out-of-roundness, cylindricity, etc., and to obtain a high-precision ceramic roll by blocking movement in the axial direction of a work roll made of a ceramic roll by means of a supporting bearing which is rotated synchronously with a roller or roll and which is provided in contact with its end face. CONSTITUTION: A pair of intermediate rolls 3 and a pair of reinforcing rolls 4 consisting of a shaft and barrel are pressed against a work roll 1 composed of sialon; and the work roll 1 is rotated trailingly by the rotary driving of the intermediate rolls 3. The shaft of the intermediate rolls 3 is rotatably driven by a motor through a universal joint and a reduction gear. Additionally, the shaft of the intermediate rolls 3 transmits a rolling reaction force to a bearing provided in the shaft. On each end face of the work roll 1, the movement in the axial direction of the work roll 1 is supported by the supporting bearing 9 and the supporting part 8 of the work roll so as to be rotated synchronously with the rotation of the ceramic roll. As a result, the movement is restrained in the axial direction of the work roll.

3. 发明专利

JPH07330421A BORON NITRIDE-CONTAINING CERAMIC AND ITS PRODUCTION 失效
公开(公告)号：JPH07330421A
公开(公告)日：1995-12-19
申请号：JP12729694
申请日：1994-06-09
申请人： HITACHI LTD
发明人： OOYAGI TOMOHITO , NAKAGAWA MOROO , SAKAI JUNJI , SAITO YUKIO , YASUTOMI YOSHIYUKI , OKOCHI NORIHIKO
IPC分类号： F16C33/24 , C04B35/00 , C04B35/10 , C04B35/14 , C04B35/48 , C04B35/56 , C04B35/565 , C04B35/58 , C04B35/581 , C04B35/583 , C04B35/584 , C04B41/87 , C23C2/00
摘要： PURPOSE:To obtain a boron nitride-containing ceramic having low friction and high strength. CONSTITUTION:The boron nitride-containing ceramic contains a boron nitride fine particle having

4. 发明专利

JPH07188884A PARTS IN BATH FOR CONTINUOUS HOT DIPPING EQUIPMENT 失效
公开(公告)号：JPH07188884A
公开(公告)日：1995-07-25
申请号：JP33101993
申请日：1993-12-27
申请人： HITACHI LTD
发明人： NAKAGAWA MOROO , SAKAI JUNJI , TAGUCHI MITSUO , OOYAGI TOMOHITO , TAKAKURA YOSHIO , SEKI MASATOSHI , OKOCHI NORIHIKO
IPC分类号： C23C2/00 , C23C2/40
摘要： PURPOSE:To provide highly reliable parts of long service life in a bath by forming the corrosion resistant compound bonded with the element in the metal on the metal surface to coat the surface of a metallic member. CONSTITUTION:A strip 2 to be fed through a snout 1 is changed in direction by a sink roll in a hot dipping bath 3 to change the movement of the strip 2 by a support roll 5. The strip 1 is drawn out of a hot dipping bath 6 to adjust the hot dipping thickness by a wiping nozzle 7. The element which can be chemically bonded with the element contained in the metal is deposited on the surface of the strip 1 which is the metallic member, and the surface of the metallic member (the strip 1) is coated by forming the corrosion resistant compound bonded with the element in the metal on the metal surface. This treatment reduces the frequency of changing the roll, improves the productivity, and reduces defects.

5. 发明专利

JPH0717771A METHOD FOR SINTERING CERAMIC 失效
公开(公告)号：JPH0717771A
公开(公告)日：1995-01-20
申请号：JP14886193
申请日：1993-06-21
申请人： HITACHI LTD
发明人： KAWAHIGASHI TAMITO , OKOCHI NORIHIKO
IPC分类号： C04B35/64
摘要： PURPOSE:To produce the sintered compact less in bend by hanging a compact and exerting tensile load on the compact by a dead weight or a hook in the axial direction of a sintering direction at the time of sintering a cylindrical or columnar ceramic compact. CONSTITUTION:Through roles 2 are drilled at both sides of the ceramic roller compact 1, and a cord 3 is threaded through each hole 2, and the upper part thereof is tied to make a loop and hung on the graphite circular disk 4 having a hole at the center. The graphite dead weight 7 having a hole 6 is hung in the lower part and the compact 1 is sintered in this state. In this way, the sintered compact prevented from the bending stress due to the density unevenness and temp. unevenness of the sintered compact and less in bend is obtained since the stress always acts uniformly in the axial direction at the time of sintering. Therefore, the need of much finishing allowance for the time of grinding working is eliminated to thus reducing the cost of the product.

6. 发明专利

JPH06293948A CONTINUOUS HOT DIP METAL COATING DEVICE 失效
公开(公告)号：JPH06293948A
公开(公告)日：1994-10-21
申请号：JP7921293
申请日：1993-04-06
申请人： HITACHI LTD
发明人： NAKAYAMA YOSHITAKA , OGOSHI HITOSHI , OKOCHI NORIHIKO
IPC分类号： C23C2/00 , C23C2/40
摘要： PURPOSE:To obtain a high quality plating band steel as the product by controlling a correcting roll according to the degree of a warping shape of the band steel, in a continuous hot dip metal coating device. CONSTITUTION:A sink roll and the correcting roll 6b at the fixing side are swingable by swinging a frame 9 around a pin joint 27a and the correcting roll 6a at pressing side is swingable by swinging bases 3a, 3b around pin joints. Three gap sensors 13 for detecting the warp by measuring three points of both end points on one side surface and the center point on the band steel and a vibrating sensor 23 for measuring the vibration of a frame 9 are arranged. A computing element 16 and a center control unit 18 adjust an inclining position in a horizontal plane of the sink roll and the correcting rolls based on signals of these sensors. Then, When the variation reaches to the regulated value, an alarm is sounded and line speed is automatically lowered. Bearings of the sink roll and the correcting rolls are made of ceramic.

7. 发明专利

JPH06145935A HOT DIP METAL COATING DEVICE 失效
公开(公告)号：JPH06145935A
公开(公告)日：1994-05-27
申请号：JP30203392
申请日：1992-11-12
申请人： HITACHI LTD
发明人： SAKAI JUNJI , TAGUCHI MITSUO , SAITO YUKIO , TAKAKURA YOSHIO , OKOCHI NORIHIKO , KANI YASUNORI
IPC分类号： C04B41/88 , C23C2/00 , C23C2/40
摘要： PURPOSE:To enhance the corrosion resistance and wear resistance of a solid lubricating material and to prolong the life of the device by using ceramics and the inorg. solid lubricating material softer than the ceramics as a combination of the bearing surface to be slid and bearing sliding surface of a roll in contact with molten metal or rotating in the molten metal. CONSTITUTION:Either one of the sliding surface of the shaft of the roll or its bearing sliding surface is constituted of the ceramics hardly wettable with the molten metal and the other is constituted of the member contg. the inorg. solid lubricating material softer than the ceramics. As a result, the wear of the sliding surface is suppressed even if the molten metal or dross infiltrates the sliding surface. The plating device having a long life is thus obtd. The coefft. of friction of the sliding part of both mentioned above is small and the revolution of the roll is smooth and, therefore, the uniform hot dip metal coating is obtd.

8. 发明专利

JPS61295290A LASER PROCESSING METHOD 失效
公开(公告)号：JPS61295290A
公开(公告)日：1986-12-26
申请号：JP13602685
申请日：1985-06-24
申请人： HITACHI LTD
发明人： ASAI TADAMICHI , IKEGAMI AKIRA , OKOCHI NORIHIKO
IPC分类号： C04B41/80

9. 发明专利

JPS61101481A Metallization of silicon carbide base ceramic sintered body 失效
标题翻译：碳化硅基陶瓷烧结体的金属化
公开(公告)号：JPS61101481A
公开(公告)日：1986-05-20
申请号：JP22157984
申请日：1984-10-22
申请人： Hitachi Ltd
发明人： OKOCHI NORIHIKO , SASAKI TOSHIMI
IPC分类号： C04B41/88

10. 发明专利

JPH0848985A SELF-LUBRICATING SLIDING MEMBER, ITS PRODUCTION, AND APPARATUS FOR PLATING WITH MOLTEN METAL 失效
公开(公告)号：JPH0848985A
公开(公告)日：1996-02-20
申请号：JP13003195
申请日：1995-05-29
申请人： HITACHI LTD
发明人： OOYAGI TOMOHITO , NAKAGAWA MOROO , SAKAI JUNJI , YASUTOMI YOSHIYUKI , OKOCHI NORIHIKO
IPC分类号： F16C33/12 , C10M103/00 , C10M103/04 , C10M103/06 , C10M109/02 , C10N10/00 , C10N10/04 , C10N10/06 , C10N10/10 , C10N10/12 , C10N20/00 , C10N40/02 , C10N70/00 , C23C2/00
摘要： PURPOSE:To provide a self-lubricating sliding member which is reduced in friction and wear, has sufficient mechanical strengths, and withstands a special environment and which by itself copes with an environmental change to come to have reduced friction; and to provide a process for producing the same and an apparatus for plating with a molten metal. CONSTITUTION:The member contains a precursor which, during sliding, generates a self-lubricating compound through reaction with a component of the surrounding atmosphere or of the mating material. This member is reduced in friction and wear and has high strengths. The apparatus contains the member as a bearing.

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