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1. 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

2. 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,

3. 发明专利

JPS6365051A MANUFACTURE OF FERROUS SINTERED ALLOY MEMBER EXCELLENT IN WEAR RESISTANCE 失效
公开(公告)号：JPS6365051A
公开(公告)日：1988-03-23
申请号：JP21117786
申请日：1986-09-08
申请人： MAZDA MOTOR , KAWASAKI STEEL CO
发明人： OSAKI SHIGEZO , JINNO SUMIO , NITTA MINORU
IPC分类号： C22C33/02 , C22C38/00 , C22C38/32
摘要： PURPOSE:To develop a ferrous sintered alloy member excellent in wear resistance, by mixing a graphite powder and an Fe-Cr alloy powder with the powder of an Fe-P-C eutectic alloy having a specific composition in a specific ratio, by compacting the resulting powder mixture, and then by sintering the above green compact. CONSTITUTION:The Fe-Cr alloy powder containing, by weight, 11-14% Cr is mixed with the powder of Fe-P-C eutectic alloy containing 2.0-3.0% P,

4. 发明专利

JPS63143206A PRODUCTION OF METAL POWDER MOLDING 失效
公开(公告)号：JPS63143206A
公开(公告)日：1988-06-15
申请号：JP29099786
申请日：1986-12-06
申请人： NITTO ELECTRIC IND CO , MAZDA MOTOR
发明人： KOBAYASHI YOSHIKI , KAMEI KIYOHIRO , OKUMURA KAZUTO , OSAKI SHIGEZO , JINNO SUMIO
IPC分类号： B22F3/02
摘要： PURPOSE:To easily and stably obtain a metal powder molding which has a uniform thickness and is crack-free by incorporating a specific solvent into a compsn. for powder molding and molding the compsn. in such a state in which the solvent remains even after the molding. CONSTITUTION:For example, Fe-M-C multielement eutectic alloy powder (M is a metal element essentially consisting of >=one kinds among Mo, B and P) which is wear resistant alloy powder is prepd. as the most representative powder. The powder grain size of said metal powder is generally =120 deg.C, more adequately >=150 deg.C b.p. at 5-50pts.wt. into 100pts.wt. above-mentioned metal powder. The resultant compsn. for powder molding is molded to a prescribed shape such as sheet by such a method by which the evaporation of the high boiling point solvent contained in the compsn. is obviated and part or the whole of said solvent is made to remain, by which the desired metal powder molding is obtd. The above-mentioned high boiling point solvent is exemplified by hydrocarbon solvents such as n-decane.

5. 发明专利

JPH01116012A METHOD FOR FORMING SINTERED LAYER ON CAST IRON MEMBER 失效
公开(公告)号：JPH01116012A
公开(公告)日：1989-05-09
申请号：JP27124787
申请日：1987-10-27
申请人： MAZDA MOTOR
发明人： OSAKI SHIGEZO , JINNO SUMIO
IPC分类号： B22F7/06 , B22F5/00
摘要： PURPOSE:To prevent the defective joining of the joint surfaces of a sintered layer and cast iron by etching the surface to be formed with the sintered layer, then imposing an alloy powder molding thereon and subjecting the same to sintering and joining. CONSTITUTION:The surface 1a of a base material 1 is etched by the acid to corrode the pearlite of the base 1c and to project graphite 1b. A proper amt. of a lubricating agent is then added to alloy powder having a prescribed chemical compsn. and powder grain size and the powder is presintered to form the alloy powder molding 3. Furthermore, this molding is imposed and detained on and to the surface 1a of the base material 1 and is sintered and joined under prescribed heat treatment conditions. The graphite parts 1b are locally alloyed earlier than the base 1b, by which the liquid phase quantity is relatively decreased. The defective joining of the joint surfaces between the sintered layer and the cast iron is thereby prevented.

6. 发明专利

JPS62133008A METHOD FOR BONDING BY SINTERING 失效
公开(公告)号：JPS62133008A
公开(公告)日：1987-06-16
申请号：JP27154985
申请日：1985-12-04
申请人： MAZDA MOTOR
发明人： MORISHITA TSUYOSHI , SAKAI NORIYUKI , JINNO SUMIO
IPC分类号： B22F7/04 , B22F7/08
摘要： PURPOSE:To bond a metallic base body and material to be sintered by sintering while preventing the positional deviation thereof after sintering by interposing a brazing filler metal consisting of Cu and low b.p. metal between said materials, heating the brazing filler metal to a liquid phase then heating up the materials under a reduced pressure. CONSTITUTION:The foil of the brazing filler metal 3 consisting of Cu and Zn, etc., having the b.p. lower than the b.p. of Cu is adhered by a self-adhesive tape 4, etc., between the metallic base body 1 and a powder alloy sheet 2 which is the material to be sintered. The materials are then heated up in a vacuum furnace until the brazing filler metal 3 attains the liquid phase. The inside of the furnace is then evacuated and is heated up to the sintering temp. to evaporate Zn. As a result, the sheet 2 is subjected to a shape change such as shrinkage while the sheet is held adhered to the body 1 by solid phase joining 5. The generation of the positional deviation of the sheet 2 is, therefore, suppressed by the solid phase joining by Cu and a sintered layer 6 is formed in the prescribed position with the substantial joint strength.

7. 发明专利

JPH01309906A METHOD FOR FORMING SINTERED LAYER 失效
公开(公告)号：JPH01309906A
公开(公告)日：1989-12-14
申请号：JP14070588
申请日：1988-06-08
申请人： MAZDA MOTOR
发明人： JINNO SUMIO
IPC分类号： B22F7/04 , B22F5/00
摘要： PURPOSE:To form sintered layer without developing crack by setting wear resistant eutectic alloy powder sheet to a jig and executing pre-sintering and regular-sintering after molding by sandwich-pressing. CONSTITUTION:Plural pieces of the alloy powder sheets 5 composing of 94-99wt.% the wear resistant eutectic alloy powder and 1-6% modacrylic sticky binder are piled and set to the lower molding member 7 having projecting curved surface of a molding jig 6. Successively, the upper molding member 9 is fitted and positioned with bolt member 8 to pile on the alloy sheets 5. By descending the upper molding member 9, the alloy powder sheets 5 are sandwich-pressed with both molding members 7, 9 for >=10hr and the molding is executed so as to follow the surface shape of sintered layer forming position of metal base body. The molded alloy powder sheets 5 are pre-sintered and after removing gas generated by decomposition of resin component in the binder, the regular sintering is executed as laying on the sintered layer forming position of the metal base body to form the sintered layer.

8. 发明专利

JPH01191702A METHOD FOR FORMING SINTERED LAYER ON BASE MATERIAL 失效
公开(公告)号：JPH01191702A
公开(公告)日：1989-08-01
申请号：JP1588488
申请日：1988-01-28
申请人： MAZDA MOTOR
发明人： JINNO SUMIO , OSAKI SHIGEZO
IPC分类号： B22F7/04 , B22F5/00
摘要： PURPOSE:To prevent sintered layer from formation of the position sliding by fitting an alloy sheet body into a recessed part composing of a recessed part for holding and a recessed part for positioning, which the interval is continuously widened with the above recessed part and successively sintering. CONSTITUTION:On the surface of the base material 11, the recessed part 12 composing of the recessed part 13 for holding and the recessed part 15 for positioning having an inclined face 15, which the interval is widened in accordance with being apart from the recessed part 13 for holding, is formed. The alloy powder sheet body 16 for sintering is fitted into the recessed part 12 and sintered in the vacuum, etc. The sintering layer 17 is sintered and joined along the inclined face 15 of the base material 11 and the position sliding and twisting, etc., are not developed.

9. 发明专利

JPS62192534A SLIDING CONTACT MEMBER HAVING SUPERIOR WEAR RESISTANCE AND ITS MANUFACTURE 失效
公开(公告)号：JPS62192534A
公开(公告)日：1987-08-24
申请号：JP3588486
申请日：1986-02-19
申请人： MAZDA MOTOR
发明人： JINNO SUMIO , YAMAMOTO YOSHIFUMI
IPC分类号： C21D9/30 , C21D9/00
摘要： PURPOSE:To improve the wear resistance of a sliding contact surface with respect to both hardness and lubricity by spottedly irradiating laser beams on the sliding contact surface and restricting the pressure of an assist gas during the irradiation. CONSTITUTION:Laser beams are spottedly irradiated on the sliding contact surface 3 of a cam 1 to melt the metal of the cam 1 at the irradiated parts, the molten metal is pressed out to the periphery by the pressure of an assist gas and chilled layers 6 are formed by self-cooling. At this time, the pressure of the assist gas is set at 1.5-3.0kg/cm so that the sliding contact surface 3 is spottedly concaved 5 by the chilled layers 6 each having a peripheral edge 6a projecting from the surface 3. The edge 6a is ground by buffing or other method so as to regulate the height (d) of the projection to a prescribed value.

10. 发明专利

JPS62130205A SINTERING METHOD FOR POWDER ALLOY SHEET 失效
公开(公告)号：JPS62130205A
公开(公告)日：1987-06-12
申请号：JP26941585
申请日：1985-12-02
申请人： MAZDA MOTOR
发明人： OSAKI SHIGEZO , JINNO SUMIO
IPC分类号： B22F7/04
摘要： PURPOSE:To sinter a powder alloy sheet after easily and exactly making a positioning operation of the powder alloy sheet to be adhered to the sintering and bonding surface of a metallic base body by positioning the above-mentioned powder alloy sheet with a powder metallic sheet as a reference, then positioning said sheet. CONSTITUTION:The powder alloy sheet 1 formed by kneading a wear resistance powder alloy and binder, the metallic base body 2 consisting of a ferrous metal, etc., and the powder metallic sheet 3 for positioning having the same size as the size of the sintering and bonding surface A are prepd. The sheet 3 is then adhered to the center of the sheet 1, i.e., except an allowance S for shrinkage in the sintering stage thereof, by using an adhesive agent (I, II), and thereafter the sheet 3 is fitted and adhered to the surface A of the base body 2. After the sheet 1 is thereby adhered to the base body 2, a sintered layer 4 is formed by sintering under prescribed conditions (V). The effect is remarkable particularly when the surface of the metallic base body is curved according to the method of this invention.

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