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31. 发明专利

JPH01271052A PRODUCTION OF MATERIAL FOR SINTERING MEMBER AND CAST-IN MEMBER THEREOF 失效
公开(公告)号：JPH01271052A
公开(公告)日：1989-10-30
申请号：JP10097688
申请日：1988-04-23
申请人： MAZDA MOTOR
发明人： OSAKI SHIGEZO , JINNO SUMIO , SAKAI NORIYUKI , MORISHITA TSUYOSHI
IPC分类号： B22D19/00 , B22F1/00 , B22F5/00 , B22F7/08
摘要： PURPOSE:To sharply improve joinability of a sintering material and a ferrous metal by forming the material of the sintering member for inserting as cast-in in the ferrous metal member with ferrous eutectic alloy powder containing the specific concn. of P, Mo, C and Cr, respectively. CONSTITUTION:The material for sintering member is composed of ferrous eutectic alloy powder containing 0.8-2.0wt.% P, 3.5-7.0% Mo, 1.5-3.0% C, 5.0-10.0% Cr. By increasing containing% of P and Mo, at the time of inserting as cast-in in the ferrous molten metal, the liquid phase is much crystallized, to improve the joinability of the sintering member and the ferrous metal. A powder sheet piece 3 composing of the above ferrous eutectic alloy powder is sintered to the shape 3A as fittable to a mold by setting on a cam jig 4 having the prescribed forming curved surface, and this is fitted to two divided shell mold 5 and the molten ferrous metal is supplied to insert the sintered member 3A as cast-in. By this casting, the sintered member 3A and pig iron 6 is sintering-joined and after that, the necessary material working is executed. By this method, the sintered member having excellent density, toughness and heat shock resistance with no cracking, and the prescribed curved surface can be formed.

32. 发明专利

JPS63262402A PRODUCTION OF ALLOY POWDER AND SINTERED ALLOY HAVING WEAR RESISTANCE USING SAME 失效
公开(公告)号：JPS63262402A
公开(公告)日：1988-10-28
申请号：JP9439987
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 develop a hard sintered alloy having excellent wear resistance by kneading Fe alloy powder containing Mo, Nb or Ta, Cr, Mn, P as hard carbide forming element and in case of need, adding Fe-Cr powder together with binder, compressing, compacting and sintering. CONSTITUTION:The Fe alloy powder containing 5-15 wt.% Mo, 2-6% Cr or Mn, 1-3% P, 10-30% Nb or Ta, 1-8% C,

33. 发明专利

JPS63235413A METHOD FOR FORMING HARDENED LAYER 失效
公开(公告)号：JPS63235413A
公开(公告)日：1988-09-30
申请号：JP6584987
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-P alloy powder sheet on surface of a C contained ferrous material and compacting the hardened layer of Fe-P-C ternary eutectic. CONSTITUTION:On the surface of the ferrous material containing >=3wt.% C, powdery alloy composing of 1.0-4.0% P and =5% shrinkage percentage, >=40% surface area ratio of carbide and

34. 发明专利

JPS6196010A Sinter-joining method of powder alloy sheet to ferrous member 失效
标题翻译：粉末合金粉末加工方法对粉末成员的烧结方法
公开(公告)号：JPS6196010A
公开(公告)日：1986-05-14
申请号：JP21559384
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 , C23C10/30 , C23C26/00
摘要： PURPOSE: To prevent the corrosion on the surface of a ferrous member and the formation of the coarser structure of a sintered layer by adhering a powder alloy sheet to the surface of the ferrous member and heating the same to form a liquid phase and to joint the sheet and member then subjecting the liquid phase part to a high alloying treatment then to normal sintering.
CONSTITUTION: The powder alloy sheet 2 consisting of a wear resistant Fe-Mo-Cr eutectic alloy, etc. is adhered to the ferrous member 1 consisting of flake graphite cast iron, etc. and in the stage of subjecting the member and sheet to the heat treatment in the non-oxidizing atmosphere thereafter, the member 1 and the sheet 2 are first heated until the liquid phase enough to joint the two member is formed on the joint surface between the member 1 and the sheet 2, then the assembly is quickly cooled to convert the liquid phase part to the solid phase, thereby joining the two members. The assembly is then subjected to the high alloying treatment of the high melting point to generate a diffusion between the part converted to the solid phase and the metallic element around the same and is then subjected to the normal sintering to sinter the main part of the sheet 2 in the half liquid phase. The sheet 2 is thus securely sintered and joined to the member 1 without spoiling the wear resistance.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了防止铁构件表面的腐蚀和烧结层的粗糙结构的形成，通过将粉末合金薄片粘合到铁构件的表面上并加热而形成液相并将其接合然后对液相部分进行高合金化处理，然后进行正常烧结。构成：由耐磨Fe-Mo-Cr共晶合金等组成的粉末合金板2粘附到由片状石墨铸铁等构成的铁构件1上，并且在将构件和片材施加到此后在非氧化性气氛中进行热处理，首先将构件1和片材2加热直到在构件1和片材2之间的接合表面上形成足够接合两个构件的液相，然后组件快速冷却以将液相部分转化为固相，从而连接两个部件。然后对该组件进行高熔点的高合金化处理，以在转换成固相的部分与其周围的金属元素之间产生扩散，然后进行正常烧结以烧结片材的主要部分 2在半液相。因此，片材2被牢固地烧结并接合到构件1而不破坏耐磨性。

35. 发明专利

JPS60177102A METHOD FOR IMPREGNATING LEAD TO FERROUS SINTERED ALLOY 失效
公开(公告)号：JPS60177102A
公开(公告)日：1985-09-11
申请号：JP3245384
申请日：1984-02-24
申请人： MAZDA MOTOR
发明人： MORISHITA TSUYOSHI , OOSAKI SHIGEZOU , SAKAI NORIYUKI
IPC分类号： B22F3/26
摘要： PURPOSE:To impregnate lead to the desired surface of a ferrous sintered alloy without pressurization by interposing a sheet consisting of a powder alloy which improves wettability between the ferrous sintered alloy and a lead material and heating the same. CONSTITUTION:A sheet 2 manufactured by kneading alloy powder of Pb-Sn or the like which improves wettability between a ferrous material and lead and a resin binder is adhered to the surface of a ferrous sintered alloy and a lead material 3 is adhered onto said sheet. The adhered material is placed on a carriage 4 and is carried into a heating furnace where the material is heated to the temp. higher than the m.p. of the lead material 3. The alloy powder of the sheet 2 impregnates the inside of the alloy 1, thus improving the wettability between the alloy 1 and the lead 3. The ferrous sintered alloy 1' taken out of the furnace 5 is thus impregnated with the lead only in the surface to which the sheet 2 is adhered.

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