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1. 发明专利

JPH09249930A ALUMINUM ALLOY EXCELLENT IN HIGH TEMPERATURE STRENGTH 失效
公开(公告)号：JPH09249930A
公开(公告)日：1997-09-22
申请号：JP8483596
申请日：1996-03-13
申请人： MITSUBISHI HEAVY IND LTD , SUMITOMO LIGHT METAL IND
发明人： KAWASETSU NOZOMI , SHINOHARA MASATOMO , HAYAKAWA MASAYUKI , OKUBO YOSHIMASA , SHIBUE KAZUHISA , TOKIZANE NAOKI
IPC分类号： C22C1/04 , C22C21/00
摘要： PROBLEM TO BE SOLVED: To provide an aluminum alloy excellent in high temp. strength, usable under a high temp. stress-applied environment, and applicable, e.g. to engine parts, such as intake valve and connecting rod, impeller of compressor, and outer sheet of supersonic flying body. SOLUTION: This alloy has a composition which consists of, by weight, 5-13% of Fe+Mn, 0.2-4% V, 0.2-4%, in total, of either or both of Ti and Mo, and the balance Al with inevitable impurities, and further, the ratio between respective contents of Mn and Fe and also the content of Mn are controlled to 0.2-4 and

2. 发明专利

JPS62260048A ZINC-DIFFUSED LAYER FOR CORROSION PREVENTION OF ALUMINUM 失效
公开(公告)号：JPS62260048A
公开(公告)日：1987-11-12
申请号：JP10217986
申请日：1986-05-06
申请人： MITSUBISHI HEAVY IND LTD
发明人： HATTORI TAKESHI , HAYAKAWA MASAYUKI , NISHIKAWA KAZUO
IPC分类号： C23C10/28
摘要： PURPOSE:To improve the pitting corrosion resistance of an Al alloy by specifying the surface concn. of zinc and depth of a zinc-diffused layer. CONSTITUTION:The surface concn. of zinc of the zinc-diffused layer is specified to = 400. The pitting corrosion resistance of the Al alloy is remarkably improved by the sacrificial anode effect of the zinc-diffused layer and the corrosion-resistant life of apparatus parts made of the Al alloy is remarkably improved if such zinc-diffused layer is provided to the surface layer of the Al alloy. The corrosive wear of the zinc-diffused layer is significant on the contrary if the surface concn. of zinc is >=12%. The ratio of the zinc-diffused layer is too high with respect to the thickness of the parts and the pitting-resistant life is no longer improved if the depth of the zinc-diffused layer is >=200mu. The product of the surface concn. of zinc and the depth of the zinc-diffused layer is required to be >=400 from the pitting depth of a wetting test with an aq. copper chloride soln. and salt-contg. mud.

3. 发明专利

JPH0835495A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH0835495A
公开(公告)日：1996-02-06
申请号：JP17414694
申请日：1994-07-26
申请人： MITSUBISHI HEAVY IND LTD
发明人： SHIGEOKA TETSUO , HAYAKAWA MASAYUKI , MIURA SHIGEKI
IPC分类号： F04C29/02 , F04C18/02 , F04C29/00
摘要： PURPOSE:To prevent generation of any seizure of a slide part at the time of operation restart after operation stop for a long term by providing lots of minute oil sumps which can store lubrication oil on a contact slide surface with a partner member for at least one of each end place, thrust bearing, selfrotation obstruct mechanism, etc., of fixed and turning scrolls. CONSTITUTION:In a scroll type compressor formed by meshing a fixed scroll with a turning scroll 2 in each of which a scroll shape lap 21 is installed in one body to each end plate 22 by shifting their phases, lots of minute oil sumps (recessed parts) 100 are formed on the back surface of the end plate 22 of the turning scroll 2, namely on the surface sliding in contact with a thrust bearing. These oil sumps 100 are favorably formed as recessed parts with about 50mu diameter and 20-30mu depth. Thereby, as lubrication oil can be kept in the minute oil sumps 100, even after operation stop for a long term of a scroll hydraulic machine, seizure may not take place between the thrust bearing and the end plate at the time of operation restart so that favorable slide can be guaranteed.

4. 发明专利

JPH04347301A SCROLL TYPE FLUID MACHINE 失效
公开(公告)号：JPH04347301A
公开(公告)日：1992-12-02
申请号：JP14797391
申请日：1991-05-22
申请人： MITSUBISHI HEAVY IND LTD
发明人： KOBAYASHI ISAMU , HAYAKAWA MASAYUKI
IPC分类号： F01C1/02 , F04C18/02
摘要： PURPOSE:To improve abrasion resistance and aggulutinative abrasion resistance of a sliding surface by reducing an Si amount of either one of a fixed scroll or a turning scroll made of Al-Si system alloy by 3 to 7% from that of the other one, while reducing hardness thereof by HB (10/500) 10 to 30 from that of the other one. CONSTITUTION:In a scroll type fluid machine constituted in such a way as engaging a fixed scroll 1 and a turning scroll 2 each the material of the scrolls 1, 2 is set to Al-Si system alloy. The Si amount of either one of the scrolls is reduced by 3 to 7% from that of the other one. In addition, the hardness thereof is reduced by HB (10/500) 10 to 30 from that of the other one. It is thus possible to improve abrasion resistance by uniformly dispressed eutectic and primary phase. Also, it is possible to improve primary conformability and agglutinative abrasion resistance by the difference in hardness, and the difference in Si amount between both scrolls.

5. 发明专利

JPH04153592A CYLINDER FOR ROTARY COMPRESSOR 失效
公开(公告)号：JPH04153592A
公开(公告)日：1992-05-27
申请号：JP27338790
申请日：1990-10-15
申请人： MITSUBISHI HEAVY IND LTD
发明人： NISHIKAWA KAZUO , HAYAKAWA MASAYUKI
IPC分类号： F04C18/356
摘要： PURPOSE:To reduce the abrasion at a low pressure side blade groove edge part by forming the low pressure side part of a blade groove at least inside a cylinder to a chilled form through the quenching at a high speed during casting and forming the structure in which a carbonized substance having a high hardness exists. CONSTITUTION:As for a chilled part 6 which is formed for reducing the abrasion of a part on a low pressure side blade groove edge part 5, the above-described part is chilled through the local quenching by using a cooling metal, etc., in casting a cylinder 1, and a structure in which a carbonized substance having high hardness exists is obtained. Chilling is applied to the full of thickness in the axial direction of the cylinder, and the hardness of the chilled part is HB 250-330, and the depth of chilling after the chilling work is 2-3mm. In this cylinder 1, the abrasion quantity at the low pressure side blade groove edge part 5 is reduced to 1/3-1/5 in comparison with the conventional case where chilling is not applied, and the abrasion resistance can be improved drastically.

6. 发明专利

JPS6249019A ROLLING BEARING 失效
公开(公告)号：JPS6249019A
公开(公告)日：1987-03-03
申请号：JP19033485
申请日：1985-08-28
申请人： KOYO SEIKO CO , MITSUBISHI HEAVY IND LTD
发明人： YASUI KEIGO , YOSHIDA MITSUO , KOMIYA HIROSHI , HIDA KUNIHARU , HAYAKAWA MASAYUKI
IPC分类号： F16C33/66 , F16C33/32 , F16C33/44
摘要： PURPOSE:To prevent a roll bearing from being initially seized without using grease, and to enable the same to be durable against a high speed operation, by setting the surface roughness of a spherical body in a specific range in view of the center line averaged roughness, and by forming a holder with resin containing ethylene tetrafluoride resin as a base material. CONSTITUTION:Stainless steel spherical bodies are disposed between outer and inner races 11, 12 made of high speed tool steel, and a holder 15 made of a, for example, a material such that solid lubricant such as, for example, molybdenum disulfide is added in a resin such as, for example, PTFE resin, is combined with the races 11, 12. In this arrangement, the surface roughness of the spherical body is set such as Ra=0.015 to 0.025mum. accordingly, during initial rotation the holder 15 is ground due to the contact between itself and the spherical body 14 so that PTFE resin forms a film on the contact surfaces of the spherical body 14, and the inner and outer races 11, 12. Accordingly, it is possible to provided a slide bearing which has a long life without using grease and is used for a high speed operation.

7. 发明专利

JPS6249017A ROLLING BEARING 失效
公开(公告)号：JPS6249017A
公开(公告)日：1987-03-03
申请号：JP19033585
申请日：1985-08-28
申请人： KOYO SEIKO CO , MITSUBISHI HEAVY IND LTD
发明人： YASUI KEIGO , YOSHIDA MITSUO , KOMIYA HIROSHI , HIDA KUNIHARU , HAYAKAWA MASAYUKI
IPC分类号： F16C33/44 , F16C33/12 , F16C33/16
摘要： PURPOSE:To provide a roller bearing which is lightweight, highly lubricatable, quiet and durable against a high speed operation, by coupling a wear-resistant synthetic resin roller with a holder made of self-lubricating materials which are worn easier than the material of the roller. CONSTITUTION:Between synthetic resin outer and inner races 1, 2 is disposed a holder 4 and a ball 3 which are made of synthetic wear-resistant materials such as, for example, polyamide containing self-lubricant materials such as, for example, PTEF resin, molybdenum disulfide, carbon or the like, and therefore, are protected therebetween. In this arrangements, the material of the holder 4 is of a self-lubricating type, softer and easier in abrasion, than that of the ball 3, and is composed of PTEF resin containing 20 to 30% of glass fibers and 5 to 10% molybdenum sulfide, etc. Accordingly, materials ground off due to sliding abrasion between the holder 4 and the ball 3 forms lubricant films on all sections, and therefore,the thus obtained bearing is lightweight, highly lubricatable, quiet and usable in a high speed operation, and has a long life.

8. 发明专利

JPS6241018A DRAWING MACHINE 失效
公开(公告)号：JPS6241018A
公开(公告)日：1987-02-23
申请号：JP18128185
申请日：1985-08-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： SUZUKI TSUTOMU , TANIGUCHI SUSUMU , HIDA KUNIHARU , HAYAKAWA MASAYUKI
IPC分类号： D06C3/02 , B29C55/02 , B29C55/20 , B65H20/16 , B65H23/028
摘要： PURPOSE:To make it possible to increase the speed, to save energy and to reduce noise of drawing machine, by setting magnetic force generating devices repulsing or attracting each other between clips and rails, by floating all the parts except the surface supporting the dead wt. of the clip itself or the part to make the movement possible. CONSTITUTION:The film 1 is clamped on the K surface of the clip main body 41 by lowering the clip lever 42 and the film 1 is drawn. Clamping the film 1 is released by pushing up the clip lever 42 at the exit of the drawing machine. In this operation, the clip main body 41 and the clip stage 44 are floated by the mutually repulsing magnetic forces of the magnetic force generating devices 51-54 on the clip side and the corresponding magnetic force generating devices 55-58 on the rail side and move along the rail 46 in keeping all the non- contacting states except the contact of sliding surfaces owing to the dead wt. The wt. of the movable parts such as the clip main body 41, the clip stage 44 and the roller chain 45 are reduced by the repulsing force of the magnetic force generating device 58 of the rail surface 46 faced to the magnetic force generating device 54 and supported by the abrasive parts 60-63.

9. 发明专利

JPS6241017A DRAWING MACHINE 失效
公开(公告)号：JPS6241017A
公开(公告)日：1987-02-23
申请号：JP18128085
申请日：1985-08-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： SUZUKI TSUTOMU , TANIGUCHI SUSUMU , MINAMI MASAHARU , HAYAKAWA MASAYUKI , SEKO TATSUFUMI
IPC分类号： D06C3/02 , B29C55/02 , B29C55/20 , B65H20/16 , B65H23/028
摘要： PURPOSE:To attempt to increase the speed, to save energy and to reduce noise of drawing machine, by setting magnetic force generating devices repulsing or attracting each other between clips and rails and by reducing thereby the surface pressure between clips and rails generated by the tensile force of the film etc. to the width direction. CONSTITUTION:Clip sliding members 62, 61 are tightly set on the bottom surface of the clip chain setting part 45 of the clip main body 41 and on the side surface of the clip lever 42, respectively; and rail sliding members 64, 63 are lengthy set on the surfaces of the rail 46 faced to the clip sliding members 62, 61. The film 1 is clamped on the K surface the clip main body 41 by lowering the clip lever 42 by the lowering device and the film 1 is drawn. Clamping the film 1 is released by pushing up the clamp lever 42 at the exit of the drawing machine. The surface pressure on the sliding surface between the clip main body 41 and the rail 46 is reduced by means of mutual repulsing force of the magnetic force generating devices 51-54 as far as the tensile force of the film acts on the clip main body 41 and the clip main body 41 is thereby smoothly driven along the rail 46.

10. 发明专利

JPS58210118A HEAT TREATMENT OF SCREW MATERIAL FOR PLASTIC MOLDING MACHINE 失效
公开(公告)号：JPS58210118A
公开(公告)日：1983-12-07
申请号：JP9317382
申请日：1982-06-02
申请人： MITSUBISHI HEAVY IND LTD , MITSUBISHI STEEL MFG
发明人： HATSUTORI TAKESHI , HAYAKAWA MASAYUKI , SAWADA TADAO , SAMIZO KUICHI , MOCHIZUKI TOSHIO , ABE YOSHIHIKO
IPC分类号： B29C37/00 , B29C45/00 , B29C45/60 , B29C45/74 , C21D9/00
摘要： PURPOSE:To manufacture inexpensively a low strain screw by tightly holding a screw material with a clamping jig, hardening it at a specified temp., and tempering the hardened material as it is. CONSTITUTION:High-carbon alloy tool steel is worked into the shape of a screw by cutting or other method, and the screw material 1 is tightly held with a clamping jig 3 divided into an upper block 3b and an under block 3a. The material 1 is hardened at a slightly higher temp. than the temp. at which the martensitic transformation of the material 1 is started, and the hardened material is tempered as it is. The space S between both the blocks 3b, 3a is adjusted to about 1-2mm..

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