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1. 发明专利

GB2312217A High-temperature wear-resistant sintered alloy 未知
公开(公告)号：GB2312217A
公开(公告)日：1997-10-22
申请号：GB9707598
申请日：1997-04-15
申请人： NISSAN MOTOR , HITACHI POWDERED METALS
发明人： AOKI YOSHIMASA , ISHII KEI , HAYASHI KOICHIRO , AONUMA KOUICHI , KAWATA HIDEAKI , MAKI KUNIO , EHIRA ATSUSHI , FUJIKI AKIRA , ABO SADAYUKI , SATO SEIGO
IPC分类号： F01L3/02 , B22F5/00 , C22C33/02 , C22C38/00 , C22C38/24 , C22C38/46
摘要： The alloy includes 3-13.4 wt% of W, 0.4-5.6 wt% or 0.8-5.9 wt% of V, 0.2-5.6 wt% of Cr, 0.1-0.6 wt% or 0.6-5.0 wt% of Si, 0.1-0.6 wt% or 0.2-1.0 wt% of Mn, 0.6-2.2 wt% of C, and a Balance of Fe. The sintered alloy includes first and second phase which are distributed therein, in a form of spots, respectively. The second phase is in an amount of from 20 to 80 wt%, based on the total weight of the first and second phases. The first phase contains 3-7 wt% of W, 0.5-1.5 wt% of optional V, up to 1 wt% of Cr, 0.1-0.6 wt% or 0.6-5.0 wt% of Si, 0.1-0.6 wt% or 0.2-1.0 wt% of Mn, up to 2.2 wt% of C, and a balance of Fe. The second phase contains 3-15 wt% of W, 2-7 wt% of V, 1-7 wt% of Cr, 0.1-0.6 wt% or 0.6-5.0 wt% of Si, 0.1-0.6 wt% or 0.2-1.0 wt% of Mn, up to 2.2 wt% of C, and a balance of Fe. When the manganese contents of the first and second phases and the total of the sintered alloy are respectively in a range of from 0.2 to 1.0 wt%, sulfur is respectively contained therein in an amount of from 0.1 to 0.6 wt%. The sintered alloy has wear-resistant at high temperature and good compatibility without damaging mating part that is in contact with the sintered alloy.

2. 发明专利

DE60225767T2 未知
公开(公告)号：DE60225767T2
公开(公告)日：2009-04-16
申请号：DE60225767
申请日：2002-08-06
申请人： NISSAN MOTOR , HITACHI POWDERED METALS
发明人： FUJITSUKA HIROKI , KAWATA HIDEAKI , HAYASHI KOICHIRO , MIYAZAWA TOMONORI , KOYANAGI KOJI , FUJIKI AKIRA , MURAMATSU HIDEKI , MAKI KUNIO , OKADA YOSHIO , NOMURA SHIN
IPC分类号： C22C33/02 , F01L3/02 , B22F3/26 , B22F5/00 , C22C38/00 , C22C38/02 , C22C38/22 , C22C38/24 , C22C38/34 , C22C38/44 , C22C38/60
摘要： A wear resistant sintered member exhibits superior wear resistance at the same level as those of the conventional materials without using a Co-based hard phase is provided. A first hard phase comprising Mo silicide particles dispersed in an Fe-based alloy matrix of the first hard phase and a second hard phase comprising a ferrite phase or a mixed phase of ferrite and austenite having a higher Cr concentration than the Fe-based alloy matrix surrounding a core consisting of Cr carbide particles, are diffused in an Fe-based alloy matrix, the Mo silicide particles are contained in the first hard phase in an amount of 3 to 25% by area, and the Cr carbide particles are contained in the second hard phase in an amount of 3 to 30% by area.

3. 发明专利

AT390495T 未知
公开(公告)号：AT390495T
公开(公告)日：2008-04-15
申请号：AT02017527
申请日：2002-08-06
申请人： HITACHI POWDERED METALS , NISSAN MOTOR
发明人： FUJITSUKA HIROKI , KAWATA HIDEAKI , HAYASHI KOICHIRO , MIYAZAWA TOMONORI , KOYANAGI KOJI , FUJIKI AKIRA , MURAMATSU HIDEKI , MAKI KUNIO , OKADA YOSHIO , NOMURA SHIN
IPC分类号： C22C33/02 , F01L3/02 , B22F3/26 , B22F5/00 , C22C38/00 , C22C38/02 , C22C38/22 , C22C38/24 , C22C38/34 , C22C38/44 , C22C38/60
摘要： A wear resistant sintered member exhibits superior wear resistance at the same level as those of the conventional materials without using a Co-based hard phase is provided. A first hard phase comprising Mo silicide particles dispersed in an Fe-based alloy matrix of the first hard phase and a second hard phase comprising a ferrite phase or a mixed phase of ferrite and austenite having a higher Cr concentration than the Fe-based alloy matrix surrounding a core consisting of Cr carbide particles, are diffused in an Fe-based alloy matrix, the Mo silicide particles are contained in the first hard phase in an amount of 3 to 25% by area, and the Cr carbide particles are contained in the second hard phase in an amount of 3 to 30% by area.

4. 发明专利

DE19715708A1 High temperature wear resistant sintered alloy 未知
公开(公告)号：DE19715708A1
公开(公告)日：1997-10-16
申请号：DE19715708
申请日：1997-04-15
申请人： NISSAN MOTOR , HITACHI POWDERED METALS
发明人： AOKI YOSHIMASA , ISHII KEI , HAYASHI KOICHIRO , AONUMA KOUICHI , KAWATA HIDEAKI , MAKI KUNIO , EHIRA ATSUSHI , FUJIKI AKIRA , ABO SADAYUKI , SATO SEIGO
IPC分类号： C22C33/02 , C22C38/12
摘要： A sintered alloy comprises (based on the total weight of the alloy), 3-13.4 wt.% of W, 0.4-5.6 wt.% of V, 0.2-5.6 wt.% of Cr, 0.1-0.6 wt.% of Si, 0.1-0.6 wt.% of Mn, 0.6-2.2 wt.% of C, and a balance of Fe. The sintered alloy includes: (A) a first phase comprising (based on the total weight of the first phase) 3-7 wt.% of W, up to 1 wt.% of Cr, 0.1-0.6 wt.% of Si, 0.1-0.6 wt.% of Mn, up to 2.2 wt.% of C and a balance of Fe; and (B) a second phase comprising (based on the total weight of the second phase) 3-15 wt.% of W, 2-7 wt.% of V, 1-7 wt.% of Cr, 0.1-0.6 wt.% of Si, 0. 1-0.6 wt.% of Mn, up to 2.2 wt.% of C and a balance of Fe. The second phase is in an amount of 20-80 wt.% (based on the total weight of the first and second phases) where the first and second phases are distributed in the sintered alloy, in a form of spots, respectively. Also claimed are: (1) an alloy as above which comprises 0.8-5.9 wt.% of V, with the first phase additionally comprising 0.5-1.5 wt.% of V; (2) an alloy as above which comprises 0.2-1.0 wt.% of Mn and additionally 0.1-0.6 wt.% of S, with the first and second phases comprising 0.2-1.0 wt.% of Mn and additionally 0.1-0.6 wt.% of S; (3) an alloy as above which comprises 0.8-5.9 wt.% of V, 0.2-1.0 wt.% of Mn and additionally 0.1-0.6 wt.% of S, with the first phase comprising 0.5-1.5 wt.% of V, 0.2-1.0 wt.% of Mn and additionally 0.1-0.6 wt.% of S and the second phase comprising 0.2-1.0 wt.% of Mn and additionally 0.1-0.6 wt.% of S; (4) an alloy as above which comprises 0.6-5.0 wt.% of Si, with the first and second phases comprising 0.6-5.0 wt.% of Si; (5) an alloy as above which comprises 0.8-5.9 wt.% of V and 0.6-5.0 wt.% of Si, with the first phase comprising 0.5-1.5 wt.% of V and 0.6-5.0 wt.% of Si and the second phase comprising 0.6-5.0 wt.% of Si; (6) an alloy as above which comprises 0.6-5.0 wt.% of Si, 0.2-1.0 wt.% of Mn and additionally 0.1-0.6 wt.% of S, with the first and second phases comprising 0.6-5.0 wt.% of Si, 0.2-1.0 wt.% of Mn and additionally 0.1-0.6 wt.% of S; and (7) an alloy as above which comprises 0.8-5.9 wt.% of V, 0.6-5.0 wt.% of Si, 0.2-1.0 wt.% of Mn and additionally 0.1-0.6 wt.% of S, with the first phase comprising 0.5-1.5 wt.% of V, 0.6-5.0 wt.% of Si, 0.2-1.0 wt.% of Mn and additionally 0.1-0.6 wt.% of S and the second phase comprising 0.6-5.0 wt.% of Si, 0.2-1.0 wt.% of Mn and additionally 0.1-0.6 wt.% of S.

5. 发明专利

DE19715708B4 未知
公开(公告)号：DE19715708B4
公开(公告)日：2005-09-01
申请号：DE19715708
申请日：1997-04-15
申请人： NISSAN MOTOR , HITACHI POWDERED METALS
发明人： AOKI YOSHIMASA , ISHII KEI , HAYASHI KOICHIRO , AONUMA KOUICHI , KAWATA HIDEAKI , MAKI KUNIO , EHIRA ATSUSHI , FUJIKI AKIRA , ABO SADAYUKI , SATO SEIGO
IPC分类号： C22C33/02

6. 发明专利

GB2312217B High-temperature wear-resistant sintered alloy 未知
公开(公告)号：GB2312217B
公开(公告)日：1998-03-04
申请号：GB9707598
申请日：1997-04-15
申请人： NISSAN MOTOR , HITACHI POWDERED METALS
发明人： AOKI YOSHIMASA , ISHII KEI , HAYASHI KOICHIRO , AONUMA KOUICHI , KAWATA HIDEAKI , MAKI KUNIO , EHIRA ATSUSHI , FUJIKI AKIRA , ABO SADAYUKI , SATO SEIGO
IPC分类号： F01L3/02 , B22F5/00 , C22C33/02 , C22C38/00 , C22C38/24 , C22C38/46
摘要： The alloy includes 3-13.4 wt% of W, 0.4-5.6 wt% or 0.8-5.9 wt% of V, 0.2-5.6 wt% of Cr, 0.1-0.6 wt% or 0.6-5.0 wt% of Si, 0.1-0.6 wt% or 0.2-1.0 wt% of Mn, 0.6-2.2 wt% of C, and a Balance of Fe. The sintered alloy includes first and second phase which are distributed therein, in a form of spots, respectively. The second phase is in an amount of from 20 to 80 wt%, based on the total weight of the first and second phases. The first phase contains 3-7 wt% of W, 0.5-1.5 wt% of optional V, up to 1 wt% of Cr, 0.1-0.6 wt% or 0.6-5.0 wt% of Si, 0.1-0.6 wt% or 0.2-1.0 wt% of Mn, up to 2.2 wt% of C, and a balance of Fe. The second phase contains 3-15 wt% of W, 2-7 wt% of V, 1-7 wt% of Cr, 0.1-0.6 wt% or 0.6-5.0 wt% of Si, 0.1-0.6 wt% or 0.2-1.0 wt% of Mn, up to 2.2 wt% of C, and a balance of Fe. When the manganese contents of the first and second phases and the total of the sintered alloy are respectively in a range of from 0.2 to 1.0 wt%, sulfur is respectively contained therein in an amount of from 0.1 to 0.6 wt%. The sintered alloy has wear-resistant at high temperature and good compatibility without damaging mating part that is in contact with the sintered alloy.

7. 发明专利

DE60225767D1 未知
公开(公告)号：DE60225767D1
公开(公告)日：2008-05-08
申请号：DE60225767
申请日：2002-08-06
申请人： NISSAN MOTOR , HITACHI POWDERED METALS
发明人： FUJITSUKA HIROKI , KAWATA HIDEAKI , HAYASHI KOICHIRO , MIYAZAWA TOMONORI , KOYANAGI KOJI , FUJIKI AKIRA , MURAMATSU HIDEKI , MAKI KUNIO , OKADA YOSHIO , NOMURA SHIN
IPC分类号： C22C33/02 , F01L3/02 , B22F3/26 , B22F5/00 , C22C38/00 , C22C38/02 , C22C38/22 , C22C38/24 , C22C38/34 , C22C38/44 , C22C38/60
摘要： A wear resistant sintered member exhibits superior wear resistance at the same level as those of the conventional materials without using a Co-based hard phase is provided. A first hard phase comprising Mo silicide particles dispersed in an Fe-based alloy matrix of the first hard phase and a second hard phase comprising a ferrite phase or a mixed phase of ferrite and austenite having a higher Cr concentration than the Fe-based alloy matrix surrounding a core consisting of Cr carbide particles, are diffused in an Fe-based alloy matrix, the Mo silicide particles are contained in the first hard phase in an amount of 3 to 25% by area, and the Cr carbide particles are contained in the second hard phase in an amount of 3 to 30% by area.

8. 发明专利

JPH10310851A SINTERED ALLOY WITH HIGH TEMPERATURE WEAR RESISTANCE 失效
公开(公告)号：JPH10310851A
公开(公告)日：1998-11-24
申请号：JP9416597
申请日：1997-04-11
申请人： HITACHI POWDERED METALS , NISSAN MOTOR
发明人： AOKI NORIMASA , ISHII HIROSHI , HAYASHI KOICHIRO , AONUMA KOICHI , KAWADA HIDEAKI , MAKI KUNIO , EHIRA ATSUSHI , FUJIKI AKIRA , ANPO SADAYUKI , SATO NARITSUYO
IPC分类号： F01L3/02 , B22F5/00 , C22C33/02 , C22C38/00 , C22C38/24
摘要： PROBLEM TO BE SOLVED: To provide a sintered alloy having high temp. wear resistance, excellent in wear resistance of the material itself, reduced in attack on a mating material, and capable of combining self-wear resistance with resistance to attack on a mating material. SOLUTION: This alloy has an overall composition consisting of, by weight ratio, 3-13.4% W, 0.4-5.6% V, 0.2-5.6% Cr, 0.1-0.6% Si, 0.1-0.6% Mn, 0.6-2.2% C, and the balance Fe with impurities. Further, the alloy has a structure in which a second base material phase, having a composition consisting of 3-15% W, 2-7% V, 1-7% Cr, 0.1-0.6% Si, 0.1-0.6% Mn,

9. 发明专利

JPH1142518A CONNECTING METHOD FOR OUTER MEMBER MADE OF ALUMINIUM AND INNER MEMBER MADE OF IRON 失效
公开(公告)号：JPH1142518A
公开(公告)日：1999-02-16
申请号：JP21573897
申请日：1997-07-25
申请人： HITACHI POWDERED METALS , NISSAN MOTOR
发明人： HIRAI YOSHIKI , HAYASHI KOICHIRO , ISHII HIROSHI , KAWADA HIDEAKI , MAKI KUNIO , EHIRA ATSUSHI , CHOKAI MAKI
IPC分类号： B23P19/02
摘要： PROBLEM TO BE SOLVED: To facilitate heat radiation by providing the outer peripheral surface with a plurality of protrusions parallel or inclined in relation to an axis in case of pressing in and fixing an inner member made of iron. SOLUTION: An inner member 1 made of iron with protrusions 3 (7-200 μm in height) on the outer peripheral surface 2 having inclination (at an angle of 30 deg.) in a circumferential direction is manufactured using a molding die or a molding metal mold with a rotatable punch in the same way as forming a helical gear by a powder metallurgical method. This inner member 1 provided with a plurality of protrusions 3 on the outer peripheral surface is pressed into a hole of an outer member 9 made of aluminium. At the time of pressing in, the inner member 1 is pushed into the mounting hole along the ridgeline of the protrusions 3. In case of the ridgeline being inclined in helical gear shape, the inner member 1 is pushed in while being rotated in the same way as being screwed into a bolt hole, and the protrusions 3 are put in the state of biting strongly into the internal wall of the mounting hole of the outer member 9.

10. 发明专利

JPH1142513A PRESS-IN JOIN METHOD OF ALUMINUM-MADE OUTER AND IRON-MADE INNER 失效
公开(公告)号：JPH1142513A
公开(公告)日：1999-02-16
申请号：JP21574097
申请日：1997-07-25
申请人： HITACHI POWDERED METALS , NISSAN MOTOR
发明人： HAYASHI KOICHIRO , ISHII HIROSHI , KAWADA HIDEAKI , EHIRA ATSUSHI , MAKI KUNIO , ANPO SADAYUKI
IPC分类号： B23P11/02
摘要： PROBLEM TO BE SOLVED: To provide a method of obtaining joining force equal to or more than that in the past in the case of pressing an iron-made inner into an inner hole of an aluminum-made outer for join, by using a smaller and thinner member. SOLUTION: In this press-in join method, on a peripheral surface 2 of an inner 1, a plurality of protrusive streaks in parallel or at a tilt angle 30 deg. or less relating to an axial center in a height 7 to 200 μm are provided, also the peripheral surface 2 is formed in truncated cone shape having a lower bottom in a press fit forward side, in a press-in forward side of the inner 1 in an inner hole of an outer 5, a level difference part 51 into contact with an end face of the inner 1 is provided, also an inner hole diameter in a side of the level difference part 51 is formed larger than an inner hole diameter in an inlet side, in the inner hole of the outer 5, the inner 1 is pressed in by an interference fit along a ridge line of the protrusive streak.

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