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1. 发明专利

JPS6049521B2 失效
公开(公告)号：JPS6049521B2
公开(公告)日：1985-11-02
申请号：JP5703382
申请日：1982-04-06
申请人： MORIKAWA SANGYO KK
发明人： KANO KUNIHIKO , MATSUKI KANJI , YAMAZAKI KAZUNOBU , IWAI HIDEKI , MIZUSAWA SHIGERU
IPC分类号： B22D19/08 , B23B5/00 , B23P13/00 , F02F1/08

2. 发明专利

JPS5952019B2 失效
公开(公告)号：JPS5952019B2
公开(公告)日：1984-12-17
申请号：JP12613381
申请日：1981-08-12
申请人： MORIKAWA SANGYO KK
发明人： KANO KUNIHIKO , MATSUKI KANJI , YAMAZAKI KAZUNOBU , MIZUSAWA SHIGERU
IPC分类号： B22D27/04 , B22C9/06 , B22C9/24 , B22D25/02

3. 发明专利

JPS58138245A CAST CYLINDER LINER FOR INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS58138245A
公开(公告)日：1983-08-17
申请号：JP1949482
申请日：1982-02-09
申请人： MORIKAWA SANGYO
发明人： KANOU KUNIHIKO , MATSUKI KANJI , YAMAZAKI KAZUNOBU , IWAI TOSHIMOTO , MIZUSAWA SHIGERU
IPC分类号： B22D19/00 , F02F1/08
摘要： PURPOSE:To enhance close contact performance at the time of casting a crank case, by furnishing many projections stretching in the plumb direction at the outside circumferential surface of cylinder liner, by giving these projections reducing width and height toward down, and by providing grooves between projections. CONSTITUTION:Projections 2 are formed plumbly at the outside circumferential surface of a cylinder liner 1, where the side face 3 in the axial direction is identical to a radial line from the center 5 of the liner 1. The upper part of each projection 2 is formed with a width W1 and a height H1 while the lower part is with a narrower width W2 and a lower height H2, where their relation shall be as 10mm.>=W1>W2>=1mm., 5mm.>=H1>H2>=0.2mm.. Grooves 4 are formed between projections to provide good release of the gas generated at the time of casting the crank case.

4. 发明专利

JPS57149427A REMOVAL OF RESIDUAL STRESS IN CASTING PROCESS OF CYLINDER LINER FOR SMALL-SIZE ENGINE 失效
公开(公告)号：JPS57149427A
公开(公告)日：1982-09-16
申请号：JP3303481
申请日：1981-03-06
申请人： MORIKAWA SANGYO
发明人： KANOU KUNIHIKO , TSUKADA ISAO , MATSUKI KANJI , YAMAZAKI KAZUNOBU , MIZUSAWA SHIGERU
IPC分类号： C21D9/00 , B22D30/00 , C21D1/26
摘要： PURPOSE:To eliminate the need for the conventional heat treatment process by removing the residual stress of castings by a method in which the time that a molten metal is cast into molds and allowed to stand is specifically designated. CONSTITUTION:The time that a molten metal is cast into molds and allowed to stand in the molds is specifically set up to 13-20min so that residual stress casued by excess heat produced in the casing process is removed. Thus, the operating efficiency of the casting process can be raised without the needs for a cooling process in which casting is taken out of molds and cooled, a cleaning and inspection process, and a heating process.

5. 发明专利

JPH02194120A METHOD FOR DIRECTLY AUSTEMPERING CAST ARTICLE 失效
公开(公告)号：JPH02194120A
公开(公告)日：1990-07-31
申请号：JP26722588
申请日：1988-10-25
申请人： MORIKAWA SANGYO , PARKER NETSUSHIYORI KOGYO KK
发明人： KANO KUNIHIKO , MIZUSAWA SHIGERU , YONEMURA TSUGIO , YASUDA KINICHI
IPC分类号： C23C8/22 , C21D5/00 , C23C8/80
摘要： PURPOSE:To save energy in austempering and to reduce the treating time by taking out a cast article from a casting mold when the article is cooled to a specified temp., soaking the article in a prepared austenitizing furnace, then quenching the article in a thermostatic bath, and holding the article at a specified temp. CONSTITUTION:Cast iron is cast, and the cast article is taken out from a casting mold when the article is cooled to 400-900 deg.C in the course of solidification. The article is soaked in the prepared austenitizing furnace, then immediately quenched in the thermostatic bath, and held for a specified time to allow the isothermal transformation to proceed. The cast steel is cast by the lost pattern casting method to form a carburized layer on the surface of the cast article. The carburized layer is hardened by heat treatment. By this method, a cast article having high resistance to fatigue is obtained.

6. 发明专利

JPS60118352A PRODUCTION OF CYLINDER LINER FOR EMBEDMENT BY CASTING AND PATTERN FOR CASTING CYLINDER LINER 失效
公开(公告)号：JPS60118352A
公开(公告)日：1985-06-25
申请号：JP22637683
申请日：1983-11-30
申请人： MORIKAWA SANGYO
发明人： MATSUKI KANJI , HARUHARA TATATOMI , YAMAZAKI KAZUNOBU , SHIMIZU YOSHIHIRO , MIZUSAWA SHIGERU
IPC分类号： B22D19/08 , B22C9/03 , B22C9/24
摘要： PURPOSE:To provide a pattern for casting a cylinder liner for embedment by casting by which the mold can be easily formed without collapsion of the mold by providing projecting bodies consisting of elastic soft bodies on the outside circumferential surface of a base body. CONSTITUTION:The above-described pattern for casting is constituted of semi-cylindrical base bodies, for example, a wooden mold 11 and a rugged mold 12. The mold 12 is fixed to the outside circumferential surface of the mold 11 and the surface thereof has many projecting bodies 13 consisting of soft elastic materials such as rubber. The pattern 10 is fixed to a plate 14 attached to a pattern flask 15 and a plastic film 16 is pressed thereto and is brought into tight adhesion to said plate by suction of air 18. Dry sand 20 for molding is placed in the molding flask 19 placed on the flask 15 in this state and a plastic film 21 is spread to the top end face thereof. The air in the flask 19 is sucked 22 and the suction of the flask 15 is released. The flask 15 is removed from the flask 19. Another molding flask body 24 opposing to the resulted molding flask body 23 is pressed thereto via a central core 25 and a molten metal is poured into the resulted casting mold 26. The suction of the bodies 23, 24 is released to open the flasks and the cylinder liner for embedment by casting is taken out.

7. 发明专利

JPS58173074A PRODUCTION OF CYLINDER LINER FOR INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS58173074A
公开(公告)日：1983-10-11
申请号：JP5703382
申请日：1982-04-06
申请人： MORIKAWA SANGYO
发明人： KANOU KUNIHIKO , MATSUKI KANJI , YAMAZAKI KAZUNOBU , IWAI TOSHIKI , MIZUSAWA SHIGERU
IPC分类号： B22D19/08 , B23B5/00 , B23P13/00 , F02F1/08
摘要： PURPOSE:To produce a cylinder liner for an internal-combustion engine formed with crescent-shaped ruggedness on the outside circumference by punching many small circular holes on the outside circumference of a hollow cylinder in the axial direction thereof then machining the outside circumference. CONSTITUTION:Many small holes 4 are punched apart from each other on the same circumference 3 in the outside circumference 2 of a hollow cylinder 1 made of an iron alloy. The cylinder 1 is rotated and the outside circumference 2 is machined to make grooves having each partly notched circular section so that longitudinal projections 5 between each adjacent grooves are somewhat widened at the outermost circumference of the cylinder; the projections are batched by oblique lines. The longitudinal grooves 4 having narrowed slits at the circumferential surface of the sylinder have successively widened arcuate spaces and are made formed between the longitudinal projections 5. The resulted cylinder liner is then inserted in a crank case 6 made of an alumina alloy. The gas 7 generated in the case 6 in this case is released to the outside of a casting mold through the grooves 4, and since the grooves 4 gnaw in the case 6, both are adhered tightly and firmly to each other.

8. 发明专利

JPS5829565A PRODUCTION OF SMALL SIZED CYLINDER LINER 失效
公开(公告)号：JPS5829565A
公开(公告)日：1983-02-21
申请号：JP12613381
申请日：1981-08-12
申请人： MORIKAWA SANGYO
发明人： KANOU KUNIHIKO , MATSUKI KANJI , YAMAZAKI KAZUNOBU , MIZUSAWA SHIGERU
IPC分类号： B22D27/04 , B22C9/06 , B22C9/24 , B22D25/02
摘要： PURPOSE:To obtain products of pearlite base in an as-cast state in the stage of casting small-sized cylinder liners by the use of a sand mold core and an outside diameter die by specifying the wall thickness of the outside diameter die. CONSTITUTION:An outside diameter die 12 having the wall thickness equal to that of a cylinder liner 10 for small-sized engines is manufactured. Said die is preheated and held, and a sand mold core 14 is set at the center thereof. Molten metal for commonly used green sand molds is charged between the die 12 and the core 14. The molten metal begins to solidify by releasing the heat of solidification to the mold 12 and the core 14. Since the molten metal in contact with the core releases the heat very slowly on account of the heat insulation of the core, the greater part of the heat possessed by the molten metal flows to the die 12, then the die heats up quickly. Thus the quick cooling of the molten metal is prevented, and pearlite base is produced approximately 100%. The die 12 is opened in about 5-10sec after the charging of the molten metal is completed, and the solidified cylinder liner is removed together with the core 14.

9. 发明专利

JPH01284456A METHOD OF CARBURIZING STEEL PRODUCT 失效
公开(公告)号：JPH01284456A
公开(公告)日：1989-11-15
申请号：JP11250088
申请日：1988-05-11
申请人： MORIKAWA SANGYO
发明人： KANO KUNIHIKO , MATSUKI KANJI , MIZUSAWA SHIGERU
IPC分类号： B22C9/04 , C23C8/22
摘要： PURPOSE:To shorten the tie for a carburizing operation without requiring a carburizing device and a carburizing agent by forming a mold coat by a mold coating liquid to the outside of foamed polystyrene, thereby constituting a specific expandable pattern. CONSTITUTION:The pattern 3 is formed of the formed polystyrene having at least 0.8 pond per square foot in density and the mold coating liquid having at least >=45Be concn. is used for the mold coat 4 to be coated on the outside thereof. A molten steel or steel alloy 8 passes a runner 5 through a sprue and arrives at the pattern 3 to gasify and expend the pattern 3 when the molten steel or steel alloy 8 is supplied to the sprue. The gas generated on the expenditure of the pattern 3 passes the layer of the mold coat 4 and emerges to the upper part of a flask 1 by passing the spacings of a packing material 2. However, a part of the gaseous hydrocarbon stays on the inner side of the mold coat 4 and exerts influence to the cast product. The carbon in said gas in particular penetrates to the inner side of the cast product in the mold and the carburization is effected upon lapse of time. Since the time for removing the mold coat 4 from the cast product after the casting is at least 5 minutes and, therefore, the carburized layer of at least 0.5mm depth from the outside surface of the product is obtd. by the carbon in the gas.

10. 发明专利

JPH0399747A METHOD FOR CASTING DUAL TYPE EXHAUST MANIFOLD 失效
公开(公告)号：JPH0399747A
公开(公告)日：1991-04-24
申请号：JP23487589
申请日：1989-09-11
申请人： HONDA MOTOR CO LTD , MORIKAWA SANGYO
发明人： KITAYAMA HIROSHI , HIRAYAMA YUTAKA , OTOMO NORIMASU , MAEDA FUMIHIKO , MATSUKI KANJI , OHIGATA HIROSHI , MIZUSAWA SHIGERU
IPC分类号： B22C9/04 , B22C9/24
摘要： PURPOSE:To lighten a casting by arranging a sprue and runner to a lost foam pattern to form an embedding body, embedding this into non-combustible packing material charged in a flask, pouring molten metal, executing thermal decomposition of the lost foam pattern and replacing this with the molten metal. CONSTITUTION:A first and second branched tubes 4, 8 formed as bending with material lost by heating, are set at front and back sides and branched passages 2, 3 and branched pipe conduits 6, 7 in both branched tubes 4, 8, respectively are connected with flange 11 having the same material. As the same way, the passage and pipe conduit are connected with a second flange 12 to form the lost foam pattern 13. By arranging the sprue 16 and runner to this pattern 13, the embedding body 17 is formed and embedded into the non-combustible packing material 20 charged in the flask 19, and molten metal 22 is poured from the sprue 16. The molten metal reaches the pattern 13 and then, the thermal decomposition is executed to this and the molten metal is entered into the space generated in there and cast. As the shifting between a master mold and core is not developed, allowable space to the shifting of core can be neglected and the casting weight can be lightened by the corresponding weight. Further, as removal work of casting flash is unnecessary, the labor saving is attained.

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