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1. 发明专利

DE69326488T2 未知
公开(公告)号：DE69326488T2
公开(公告)日：2000-05-31
申请号：DE69326488
申请日：1993-02-10
申请人： HITACHI LTD
发明人： OOKOUCHI TAKAHIKO , KAWAHIGASHI TAMIHITO , SEKI MASATOSHI , SAKAI JUNJI , OKOSHI HITOSHI , NAKAYAMA YOSHITAKA
IPC分类号： C23C2/00 , F16C13/02 , F16C33/24
摘要： A continuous hot dipping apparatus which comprises a slide bearing structure of a bearing and a roll shaft which is of a combination of a ceramic material and a solid lubricant material, and which has good wear resistance and long term durability. A heat resistant steel is provided, which is used in a molten metal of hot dipping and which essentially consists of 0.15-0.30% C, not more than 20% Si, not more than 2% Mn, 20-30% Cr, 10-20% Ni and not less than 50% Fe.

2. 发明专利

DE69020829T2 未知
公开(公告)号：DE69020829T2
公开(公告)日：1996-03-14
申请号：DE69020829
申请日：1990-09-18
申请人： HITACHI LTD
发明人： OOKOUCHI TAKAHIKO , KAGOHARA HIROMI , HAMA HIROMU , NAKAGAWA MITSUO , OKOSHI HITOSHI , NAKAYAMA YOSHITAKA
IPC分类号： B22D17/20 , C23C2/00 , F16C13/04 , F16C33/04 , B21D53/10

3. 发明专利

DE69020829D1 未知
公开(公告)号：DE69020829D1
公开(公告)日：1995-08-17
申请号：DE69020829
申请日：1990-09-18
申请人： HITACHI LTD
发明人： OOKOUCHI TAKAHIKO , KAGOHARA HIROMI , HAMA HIROMU , NAKAGAWA MITSUO , OKOSHI HITOSHI , NAKAYAMA YOSHITAKA
IPC分类号： B22D17/20 , C23C2/00 , F16C13/04 , F16C33/04 , B21D53/10

4. 发明专利

DE69326488D1 未知
公开(公告)号：DE69326488D1
公开(公告)日：1999-10-28
申请号：DE69326488
申请日：1993-02-10
申请人： HITACHI LTD
发明人： OOKOUCHI TAKAHIKO , KAWAHIGASHI TAMIHITO , SEKI MASATOSHI , SAKAI JUNJI , OKOSHI HITOSHI , NAKAYAMA YOSHITAKA
IPC分类号： C23C2/00 , F16C13/02 , F16C33/24
摘要： A continuous hot dipping apparatus which comprises a slide bearing structure of a bearing and a roll shaft which is of a combination of a ceramic material and a solid lubricant material, and which has good wear resistance and long term durability. A heat resistant steel is provided, which is used in a molten metal of hot dipping and which essentially consists of 0.15-0.30% C, not more than 20% Si, not more than 2% Mn, 20-30% Cr, 10-20% Ni and not less than 50% Fe.

5. 发明专利

JPH06313432A SLIDING STRUCTURE AND CONTINUOUS MOLTEN METAL PLATING DEVICE USING IT 失效
公开(公告)号：JPH06313432A
公开(公告)日：1994-11-08
申请号：JP12325793
申请日：1993-04-28
申请人： HITACHI LTD
发明人： OKOCHI NORIHIKO , KAWAHIGASHI TAMITO , SEKI MASATOSHI , OGOSHI HITOSHI , NAKAYAMA YOSHITAKA , SAKAI JUNJI , OGIWARA SATORU
IPC分类号： C04B35/80 , C23C2/40 , F16C3/02 , F16C33/16 , F16C33/24
摘要： PURPOSE:To attain long life by enhancing corrosion resistance and wear resistance, and also to provide a sliding structure composed of a shaft and a bearing capable of smoothly performing the rotation by decreasing the coefficient of friction of a sliding part and a continuous molten metal plating device using it for a rotating roll. CONSTITUTION:In a sliding structure composed of a shaft and a bearing 2, the whole periphery of a sliding part of the shaft is formed by ceramics sintered body 9, and the bearing 2 sliding surface incorporates the ceramics sintered body 20 dispersedly containing solid lubricating material into a carbon fiber reinforced graphite member 19. Moreover the sliding structure is applied to the shaft of a roll and the bearing sliding surface to be rotated while being supported by the bearing in metal fused liquid.

6. 发明专利

JPH0617212A CONTINUOUS HOT-DIPPING DEVICE 失效
公开(公告)号：JPH0617212A
公开(公告)日：1994-01-25
申请号：JP17649292
申请日：1992-07-03
申请人： HITACHI LTD
发明人： OKOCHI NORIHIKO , KAWAHIGASHI TAMITO , SEKI MASATOSHI , OGOSHI HITOSHI , NAKAYAMA YOSHITAKA , SAKAI JUNJI
IPC分类号： C23C2/00
摘要： PURPOSE:To prevent the corrosion of both sliding parts in a hot-dipping bath by constituting one of the shaft sliding part and the sliding part of the bearings of a roll to be used in the hot-dipping bath of a ceramic sintered body and the other of a solid lubricative sintered body. CONSTITUTION:The bearing part of the support roll 20 for a steel strip in the hot- dipping bath is fitted to on a roll 33 made of a highly corrosion resistant metal, such as stainless steel and a Sialon ceramic sleeve 32 is inserted onto the circumference of an intermediate material 34, which is alternately wound with stainless steel pipes and oxygen-free copper wires, to constitute the shaft sliding part of the roll, then pressing and fixing this part by means of a retaining ring 35 at the time of plating the steel strip with a metal, such as molten Zn, thereby preventing the infiltration of the molten metal between the sleeve 32 and the roll shaft 33. The sliding part on the inside surface of the bearing 41 in contact with the shaft sliding part of the roll is constituted of the solid lubridative sliding part 40 made of carbon fiber reinforced graphite, etc. The coefft. of friction between the roll shaft 33 and the bearing 41 is small and the roll is rotated by the transportation of the plated steel strip in contact therewith, by that, the roll is acted as a roll without requiring a motor and the corrosion of the roll in the hot-dipping bath is prevented.

7. 发明专利

JPH0254258B2 失效
公开(公告)号：JPH0254258B2
公开(公告)日：1990-11-21
申请号：JP24696783
申请日：1983-12-30
申请人： HITACHI LTD
发明人： NAKAYAMA YOSHITAKA
IPC分类号： B60T8/18 , B60T8/00 , B60T8/17 , B60T8/72 , B60T13/66

8. 发明专利

JPS6355975B2 失效
公开(公告)号：JPS6355975B2
公开(公告)日：1988-11-07
申请号：JP15801179
申请日：1979-12-07
申请人： HITACHI LTD
发明人： NAKAYAMA YOSHITAKA
IPC分类号： B61D27/00 , B01D53/26 , B60H1/32 , B60T17/00 , F02B75/02 , F24F1/00

9. 发明专利

JP2003269865A MELTING APPARATUS 审中-公开
公开(公告)号：JP2003269865A
公开(公告)日：2003-09-25
申请号：JP2002071594
申请日：2002-03-15
申请人： HITACHI LTD
发明人： NAKAYAMA YOSHITAKA , IIDA YOSHIHIKO
IPC分类号： G21F9/30 , B22D17/28 , C22B9/16 , F27B17/00 , F27D11/02 , F27D11/06
摘要： PROBLEM TO BE SOLVED: To provide a melting apparatus which reduces thermal distortion in the melting apparatus having a plurality of melting chambers in a circumferential direction. SOLUTION: A melting tower 1 is composed of an outer cylinder 13 and an inner cylinder 14. A space formed by the outer cylinder and inner cylinder of the melting tower 1 has upper and middle stages with a plurality of melting chambers 15c arranged in a circumferential direction, and a lower stage with a melting chamber 15d continuously arranged in the circumferential direction. The melting apparatus is composed of a cartridge heater 2a serving as a convergent heating means for convergently heating a plurality of melting chambers 15c arranged in the circumferential direction of the upper and middle stages of the melting tower 1, and a band heater 2b and an induction coil 2c serving as a uniform heating means for uniformly heating the melting chamber 15d continuously arranged in the circumferential direction of the lower stage of the melting tower, to melt metallic material chips supplied into the space formed between the outer cylinder and inner cylinder of the melting tower 1. COPYRIGHT: (C)2003,JPO

10. 发明专利

JP2003039157A Melting injection molding method and melting device for metallic material 审中-公开
标题翻译：熔融注射成型方法和金属材料熔融装置
公开(公告)号：JP2003039157A
公开(公告)日：2003-02-12
申请号：JP2001222964
申请日：2001-07-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAYAMA YOSHITAKA , IIDA YOSHIHIKO
IPC分类号： B22D17/30 , B22D17/28
摘要： PROBLEM TO BE SOLVED: To enable a metal having reached a temperature of a liquidus or higher to be supplied stably to a plunger by continuously melting chips of a metallic material without using a screw, to reduce the entraining of a slug into a product, and to shorten the time to start-up the operation.
SOLUTION: A closed container of a melting tower 2 is composed of a fixed outer cylinder 13 and a rotatable inner cylinder 14, and a preliminary heating chamber 24, semi-melting chamber 25, and a complete melting chamber 26 are formed by the outer cylinder and the inner cylinder. A band heater 15 is equipped on the outside of the outer tower, and a induction coil 16 is equipped on the inside of the inner cylinder. The chips of the metallic material are supplied in the preliminary chamber 24, and the chips of the metallic material in a solid state after preliminary heating is supplied in the semi-melting chamber 25 by the deadweight falling. The chips of the metallic material are heated until becoming a semi-molten state, and the metallic material in the semi-molten state is supplied in the complete melting chamber 26 by falling by the deadweight to melt the metallic material until the complete liquidus or higher. The treatment of the final melting part and the treatment of the first preliminary heating part are carried out simultaneously.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了使金属达到液相线或更高温度的金属能够通过在不使用螺杆的情况下连续熔融金属材料的碎屑来稳定地供应到柱塞，以减少块塞进入产品中的夹带，以及缩短启动操作的时间。解决方案：熔塔2的封闭容器由固定外筒13和可旋转内筒14组成，预加热室24，半熔化室25和完全熔化室26由外筒和内筒。在外塔的外侧装有带式加热器15，在内筒的内侧装有感应线圈16。金属材料的芯片被供给到预备室24中，并且在预加热之后固态的金属材料的芯片通过自由落下而在半熔融室25中供应。金属材料的芯片被加热直到变成半熔融状态，并且半熔融状态的金属材料通过自由落下而被供应到完全熔化室26中以熔化金属材料直到完全液相线或更高。最终熔化部分的处理和第一预热部件的处理同时进行。

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