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21. 发明专利

JPH01271051A INTERNAL CHILLING METHOD FOR SINTERING MATERIAL 失效
公开(公告)号：JPH01271051A
公开(公告)日：1989-10-30
申请号：JP10097588
申请日：1988-04-23
申请人： MAZDA MOTOR
发明人： SAKAI NORIYUKI , MORISHITA TSUYOSHI , YOUHIN NORIO , ASAI YASUSHI
IPC分类号： B22D19/00 , B22F1/00 , B22F5/00 , B22F7/08
摘要： PURPOSE:To obtain a wear resistant sliding part by taking the part of the sintering material of the part to be cast in a molten metal as a low m.p. ferrous eutectic alloy, easily forming a liquid crystal and surely joining by diffusion without causing a defective joining even if the thickness of a wear resistant sintering alloy is thickened. CONSTITUTION:The forming body of a ferrous eutectic alloy powder of a low m.p. contg. 1-5% P, 5-20% Mo and 3.1-5.0% C in wt.% is made a rolled sheet 1 after kneading with the acryl sticking binder diluted by a toluene and made a forming body 1a by punching. After forming the wear resistant forming body of the ferrous eutectic alloy powder contg. 0.5-1.5% P, 3.5-7.0% Mo, 1-3% C and 5-10% Cr a forming body 2a is similarly manufactured. After the dewaxing treatment by heating both forming bodies at high temp. under H2 gas the forming body 2a is made a sintered body 2A by heating in a vacuum furnace are made a composite sintered member 3 with the vacuum heating by placing on the forming body 1a. The sintered body 1A is cast by internal chilling on the shell mold 4 for casting a tappet. The mechanical part having a wear resistant sliding part is thus obtd.

22. 发明专利

JPS63262401A PRODUCTION OF ALLOY POWDER AND SINTERED ALLOY HAVING WEAR RESISTANCE USING SAME 失效
公开(公告)号：JPS63262401A
公开(公告)日：1988-10-28
申请号：JP9439887
申请日：1987-04-17
申请人： MAZDA MOTOR , KAWASAKI STEEL CO
发明人： MORISHITA TSUYOSHI , OSAKI SHIGEZO , JINNO SUMIO , SAKAI NORIYUKI , NITTA MINORU
IPC分类号： B22F1/00 , C22C33/02 , C22C38/00 , C22C38/18
摘要： PURPOSE:To produce a hard sintered alloy having excellent wear resistance by mixing binder with powder of Fe alloy containing hard carbide of Cr, Nb, Ta, etc., and according to the need, Fe-metal-C based powder having the specific composition, and sintering under non-oxidizing atmosphere after compacting by compressing. CONSTITUTION:The powder of Fe alloy containing 10-15 wt.% Cr, 10-30% Nb or Ta, 1-4%C, and having

23. 发明专利

JPS63235412A METHOD FOR FORMING HARDENED LAYER 失效
公开(公告)号：JPS63235412A
公开(公告)日：1988-09-30
申请号：JP6584887
申请日：1987-03-23
申请人： MAZDA MOTOR
发明人： MORISHITA TSUYOSHI , SAKAI NORIYUKI , OGASAWARA TORU
IPC分类号： B22F7/04
摘要： PURPOSE:To make a step difference as less as possible even in the case of partially arranging hardened layer and to prevent the development of crack in the hardened layer by heating after sticking the specific Fe-W alloy powder sheet on surface of a C contained ferrous material and forming the hardened layer of Fe-W-C ternary system eutectic. CONSTITUTION:On the surface of the ferrous material containing >=3wt.% C, powder alloy composing of 10-25% W and 2% inevitable components and the balanced iron, is mixed with resin binder and stuck as the alloy powder sheet having 0.2-1.5mm thickness. Next, this is heated at 1,090-1,200 deg.C to diffuse C in the above ferrous material into the above sheet side and the Fe-Mo- C ternary system eutectic is crystallized, to form the hardened layer having =40% surface area ratio of carbide and >=10% porosity. By this method, at the time of crystallizing the liquid phase by restraining the shrinkage percentage to low, the crack is not developed on the hardened layer and even in the case of partially forming the hardened layer, the step difference can be made as less as possible.

24. 发明专利

JPS63235411A METHOD FOR FORMING HARDENED LAYER 失效
公开(公告)号：JPS63235411A
公开(公告)日：1988-09-30
申请号：JP6584787
申请日：1987-03-23
申请人： MAZDA MOTOR
发明人： MORISHITA TSUYOSHI , SAKAI NORIYUKI , OGASAWARA TORU
IPC分类号： B22F7/04
摘要： PURPOSE:To make a step difference as lens as possible even in the case of partially arranging hardened layer and to prevent the development of crack in the hardened layer by heating after sticking the specific Fe-Mo alloy powder sheet on surface of a C contained ferrous material and forming the hardened layer of Fe-Mo-C ternary system eutectic. CONSTITUTION:On the surface of the ferrous base material containing >=3wt.% C, powdery alloy composing of 10-25% Mo and =40% surface area ratio of carbide and >=10% porosity. By this method, at the time of crystallizing the liquid phase by restraining the shrinkage percentage to low, the crack is not developed on the hardened layer and even in the case of partially forming the hardened layer, the step difference can be made as less as possible.

25. 发明专利

JPS63183108A METHOD FOR MODIFYING SURFACE OF METAL 失效
公开(公告)号：JPS63183108A
公开(公告)日：1988-07-28
申请号：JP1256787
申请日：1987-01-23
申请人： MAZDA MOTOR
发明人： MORISHITA TSUYOSHI , SAKAI NORIYUKI , OGASAWARA TORU
IPC分类号： B22F7/04 , C23C12/02 , C23C24/10 , C23C28/00
摘要： PURPOSE:To improve the wear resistance of the surface of an iron-base material without deteriorating the toughness by coating the surface of the material with alloy powder or the like, forming a porous alloy layer by heating, and carrying out carbonization and nitriding. CONSTITUTION:The surface of an iron-base material is coated with alloy powder or mixed powder of

26. 发明专利

JPS6338566A PRODUCTION OF SINTERED IRON ALLOY MEMBER HAVING SUPERIOR WEAR RESISTANCE 失效
公开(公告)号：JPS6338566A
公开(公告)日：1988-02-19
申请号：JP18304386
申请日：1986-08-04
申请人： MAZDA MOTOR
发明人： OSAKI SHIGEZO , SAKAI NORIYUKI , MIWA YOSHIHISA
IPC分类号： B22F3/24 , B22F5/00 , C22C38/00 , C23C8/22
摘要： PURPOSE:To produce the titled member with improved production efficiency by carburizing a sintered iron alloy contg. specified amounts of C and Cr and/or Mo under specified conditions. CONSTITUTION:Iron alloy powder consisting of 1.2-5.5 wt% C, 7.0-9.5 wt% Cr and/or 2.0-5.5 wt% Mo and the balance Fe is sintered and the resulting sintered iron alloy is carburized at 900-950 deg.C in an atmosphere having 0.7-1.2% concn. of carbon. A layer of Cr carbide and/or Mo carbide is formed on the surface of the sintered iron alloy and a sintered iron alloy member having superior wear resistance is obtd. By this method, treatment time can be considerably shortened as compared with a gas nitriding method and a relatively large-scale equipment required to thermally spray a metal is made unnecessary.

27. 发明专利

JPS6196009A Method for sintering powder alloy sheet to surface of metallic base body 失效
标题翻译：将粉末合金薄片烧结到金属基体表面的方法
公开(公告)号：JPS6196009A
公开(公告)日：1986-05-14
申请号：JP21559284
申请日：1984-10-15
申请人： Mazda Motor Corp
发明人： OSAKI SHIGEZO , SAKAI NORIYUKI
IPC分类号： B22F7/04 , C23C26/00
摘要： PURPOSE: To sinter easily and surely a powder alloy sheet to the surface of a metallic base body which is a plastically worked article by forming a flash toward the joint surface side to a contour part in the stage of forming the contour of the joint surface by sizing to said metallic base body.
CONSTITUTION: A circular cylindrical blank material 1' is plastically worked to form the metallic base body 1 having the joint surface 1a and an edge part 1d at the peripheral edge thereof. Said body 1 is then set to a die 4 and is blanked to size the contour part 1e of the joint surface 1a. The flash 5 is formed in this stage from the edge part 1d toward the joint surface 1a side to the contour part 1e. The powder alloy sheet 2 formed to approximately the same size and shape as the joint surface 1a enclosed of the flash 5 of the body 1 is imposed on said joint surface and is sintered. The sheet 2 is thus exactly positioned onto the body 1 without slip off, etc. and the member of a chip material 3, etc. formed surely with the sintered layer 6 on the body 1 is obtd.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过在形成接合面的轮廓的阶段中通过在接合面侧向轮廓部分形成闪光，将粉末合金薄片容易且可靠地烧结到金属基体的表面上，该金属基体是作为塑性加工品的表面，上述金属基体的尺寸。构成：对圆形坯料1'进行塑性加工以形成具有接合表面1a的金属基体1和在其周缘处的边缘部分1d。然后将所述主体1设置到模具4，并且将其冲裁以使接合表面1a的轮廓部分1e的尺寸。闪光灯5在该阶段从边缘部分1d形成到接合表面1a侧到轮廓部分1e。形成为与主体1的闪光灯5所包围的接合面1a大致相同的尺寸和形状的粉末状合金板2被施加在所述接合面上并被烧结。因此，片材2精确地定位在主体1上而不会脱落等，并且确保了与主体1上的烧结层6形成的芯片材料3等的构件。

28. 发明专利

JPS60238078A HIGH ALLOYING METHOD OF CASTING SURFACE 失效
公开(公告)号：JPS60238078A
公开(公告)日：1985-11-26
申请号：JP8536384
申请日：1984-04-27
申请人： MAZDA MOTOR
发明人： MORISHITA TSUYOSHI , KAWATO YASUSHI , OOSAKI SHIGEZOU , SAKAI NORIYUKI
IPC分类号： B22D19/08 , C22C1/00 , C22C1/02
摘要： PURPOSE:To produce a casting having a highly alloyed surface in a required part by adhering pulverous powder of a high alloy together with a self-adhesive agent to the prescribed part of a casting mold or chiller then pouring a molten metal into the mold. CONSTITUTION:The alloy layer having excellent resistance to corrosion, wear, heat, etc. is formed to the surface part on the surface of a casting. A mixture which is prepd. by mixing 90-99wt% pulverous powder of

29. 发明专利

JPS60230907A SINTERING METHOD OF POWDER ALLOY SHEET 失效
公开(公告)号：JPS60230907A
公开(公告)日：1985-11-16
申请号：JP8536484
申请日：1984-04-27
申请人： MAZDA MOTOR
发明人： SASAKI NAOKI , OOSAKI SHIGEZOU , SAKAI NORIYUKI
IPC分类号： B22F3/10 , B22F7/02 , B22F7/04
摘要： PURPOSE:To form exactly and easily a sintered layer having a desired shape on the surface of a metallic base body in the stage of forming a sintered layer consisting of a powder metal on the surface of the base body by providing a projecting part to the central part of the base body surface and using a specifically shaped positioning jig. CONSTITUTION:A sheet 7 formed by kneading

30. 发明专利

JPS60177992A METHOD FOR JOINING POROUS MEMBER AND ITS PRODUCT 失效
公开(公告)号：JPS60177992A
公开(公告)日：1985-09-11
申请号：JP3374884
申请日：1984-02-24
申请人： MAZDA MOTOR
发明人： MORISHITA TSUYOSHI , OOSAKI SHIGEZOU , SAKAI NORIYUKI
IPC分类号： B32B15/01 , B22F7/00 , B23K1/00 , B23K1/19 , B23K35/22 , B23K35/30 , C22C33/02
摘要： PURPOSE:To join securely a porous metallic member by using an eutectic alloy contg. elements having excellent diffusibility with the porous metal as a brazing filler metal in the stage of joining the porous metallic member. CONSTITUTION:An Fe-M-C eutectic alloy contg. elements having excellent diffusibility with Fe is used as a brazing filler metal in the stage of joining a porous metallic member consisting of an Fe sintered alloy, etc. (M is or >=2 kinds among Mo, B and P). The powder of the above-mentioned eutectic alloy which is made into a sheet shape by a binder such as acrylic resin or the like is interposed between the Fe porous metallic member and the other metallic member to be joined and the members are pressed and are heated in an inert gaseous atmosphere. The P, C, Mo, etc. into the eutectic alloy diffuse into Fe and conversely Fe diffuses into the eutectic compsn., by which the eutectic relation is broken and the solid phase having a high m.p. is generated. The porous metallic member is thus securely joined.

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