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1. 发明授权

US5753005A Source powder for wear-resistant sintered material 失效
标题翻译：耐磨烧结材料源粉
公开(公告)号：US5753005A
公开(公告)日：1998-05-19
申请号：US781271
申请日：1997-01-10
申请人： Yoshimasa Aoki , Kei Ishii , Yukio Tokuyama , Yuji Soda
发明人： Yoshimasa Aoki , Kei Ishii , Yukio Tokuyama , Yuji Soda
IPC分类号： B22F1/00 , B22F5/00 , C22C33/02 , C22C38/00 , C22C38/22 , C22C38/24 , C22C38/30 , C22C38/60
CPC分类号： C22C33/0278 , C22C33/0285 , C22C38/22 , C22C38/24 , C22C38/30
摘要： A source powder for a wear-resistant sintered material, consisting essentially of, in weight percentages, Cr: 3.0 to 6.0%, 2 Mo+W: 10.0 to 20.0%, V: 1.0 to 8.0%, Co: 10.0% or below, C: 0.20% to {0.01(2 Mo+W)+0.24 V}%, Si: 0.1 to 1.0%, Mn: 0.1 to 1.0% and the balance being Fe and unavoidable impurities, or one prepared by adding 0.10 to 0.8% of S to the above composition. This powder can be compacted into a green compact having a high green density, which can further give a wear-resistant sintered material having a high sintered density, hardness and strength.
摘要翻译：用于耐磨烧结材料的源粉末，其重量百分比基本上由Cr：3.0至6.0％，2 Mo + W：10.0至20.0％，V：1.0至8.0％，Co：10.0％或更低， C：0.20％〜{0.01（2 Mo + W）+ 0.24V}％，Si：0.1〜1.0％，Mn：0.1〜1.0％，余量为Fe和不可避免的杂质，或者添加0.10〜0.8％的S化合物。该粉末可以压实成具有高生坯密度的生坯，这可以进一步得到具有高烧结密度，硬度和强度的耐磨烧结材料。

2. 发明授权

US5529602A Sintered iron alloy resistant to abrasion at high temperature and method of manufacturing the same 失效
标题翻译：耐高温磨损的烧结铁合金及其制造方法
公开(公告)号：US5529602A
公开(公告)日：1996-06-25
申请号：US392183
申请日：1995-02-22
申请人： Kei Ishii , Yoshimasa Aoki , Hideaki Kawata , Akira Fujiki , Katsuyuki Nakamura , Kazuhiko Takahashi
发明人： Kei Ishii , Yoshimasa Aoki , Hideaki Kawata , Akira Fujiki , Katsuyuki Nakamura , Kazuhiko Takahashi
IPC分类号： C22C33/02 , C22C38/00 , C22C38/60 , F01L3/04 , F02B1/04 , F02B3/06 , C22C29/00
CPC分类号： F01L3/04 , C22C33/0207 , C22C33/0285 , F02B1/04 , F02B2275/18 , F02B3/06 , Y10T428/12042
摘要： Disclosed is a sintered iron alloy and a method of manufacturing the same. The sintered alloy comprises: an alloy matrix and a lead phase for imparting lubricability to the sintered alloy. The alloy matrix comprises a first alloy phase being composed of 0.5 to 3% nickel by weight, 0.5 to 3% molybdenum by weight, 5.5 to 7.5% cobalt by weight, 0.6 to 1.2% carbon by weight, and the balance iron, and a second alloy phase being composed of 26 to 30% molybdenum by weight, 7 to 9% chromium by weight, 1.5 to 2.5% silicon by weight, and the balance cobalt. The content of the lead phase in the sintered alloy is not more than 3.5% by weight. The lead phase is dispersed in the alloy matrix and a pore which is formed in the alloy matrix. The ratio of the lead dispersed in the alloy matrix to the total lead phase is 60% by weight or more, and the lead phase dispersed in the alloy matrix is particles in which the maximum particle size is 10 .mu.m or less. In manufacture, a lead powder having a particle size of approximately 50 .mu.m or less is mixed a first raw material powder for the first alloy phase and a second raw material powder for the second alloy phase at a lead content of not more than 3.5% by weight. After compacting and sintering the mixture, the sintered compact is cooled so that the temperature of the compact in the vicinity of 328.degree. C. is cooled at a cooling rate of approximately 2.degree. C./min. or more.
摘要翻译：公开了一种烧结铁合金及其制造方法。烧结合金包括：赋予烧结合金润滑性的合金基体和铅相。该合金基体包括第一合金相，其由0.5-3重量％的镍，0.5-3重量％的钼，5.5-7.5重量％的碳，0.6-1.2重量％的碳和余量的铁组成，第二合金相由26〜30重量％的钼，7〜9重量％的铬，1.5〜2.5重量％的硅和余量的钴组成。烧结合金中铅相的含量不超过3.5重量％。铅相分散在合金基体中，并形成在合金基体中的孔。分散在合金基体中的铅与总铅相的比例为60重量％以上，分散在合金基体中的铅相是最大粒径为10μm以下的粒子。在制造时，将粒径约为50μm以下的铅粉末，以不超过3.5％的铅含量混合第一合金相的第一原料粉末和第二合金相的第二原料粉末，重量。压实烧结混合物后，将烧结体冷却至328℃附近的压坯温度以约2℃/分钟的冷却速度冷却。或者更多。

3. 发明授权

US5949003A High-temperature wear-resistant sintered alloy 失效
标题翻译：高温耐磨烧结合金
公开(公告)号：US5949003A
公开(公告)日：1999-09-07
申请号：US833195
申请日：1997-04-14
申请人： Yoshimasa Aoki , Kei Ishii , Koichiro Hayashi , Kouichi Aonuma , Hideaki Kawata , Kunio Maki , Atsushi Ehira , Akira Fujiki , Sadayuki Abo , Seigo Sato
发明人： Yoshimasa Aoki , Kei Ishii , Koichiro Hayashi , Kouichi Aonuma , Hideaki Kawata , Kunio Maki , Atsushi Ehira , Akira Fujiki , Sadayuki Abo , Seigo Sato
IPC分类号： C22C33/02 , C22C33/00
CPC分类号： C22C33/0257
摘要： The invention relates to a sintered alloy. This sintered 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.
摘要翻译：本发明涉及一种烧结合金。该烧结合金包含3-13.4重量％的W，0.4-5.6重量％或0.8-5.9重量％的V，0.2-5.6重量％的Cr，0.1-0.6重量％或0.6-5.0重量％的Si，0.1- 0.6重量％或0.2-1.0重量％的Mn，0.6-2.2重量％的C，余量为Fe。烧结合金包括分别以斑点形式分布在其中的第一相和第二相。基于第一相和第二相的总重量，第二相的量为20〜80重量％。第一相包含3-7重量％的W，0.5-1.5重量％的任选的V，至多1重量％的Cr，0.1-0.6重量％或0.6-5.0重量％的Si，0.1-0.6重量％或0.2 -1.0重量％的Mn，至多2.2重量％的C，余量为Fe。第二相含有3-15重量％的W，2-7重量％的V，1-7重量％的Cr，0.1-0.6重量％或0.6-5.0重量％的Si，0.1-0.6重量％或0.2- 1.0重量％的Mn，至多2.2重量％的C，余量为Fe。当第一相和第二相的锰含量和烧结合金的总量分别在0.2〜1.0重量％的范围内时，其中分别含有0.1〜0.6重量％的硫。烧结合金在高温下具有耐磨性和良好的相容性，而不损害与烧结合金接触的配合部分。

4. 发明授权

US06340377B1 High-temperature wear-resistant sintered alloy 失效
标题翻译：高温耐磨烧结合金
公开(公告)号：US06340377B1
公开(公告)日：2002-01-22
申请号：US09547340
申请日：2000-04-11
申请人： Hideaki Kawata , Kei Ishii , Koichiro Hayashi , Yoshimasa Aoki , Atsushi Ehira , Kunio Maki , Masaki Toriumi
发明人： Hideaki Kawata , Kei Ishii , Koichiro Hayashi , Yoshimasa Aoki , Atsushi Ehira , Kunio Maki , Masaki Toriumi
IPC分类号： C22C3300
CPC分类号： C22C38/60 , B22F2998/00 , C22C33/0257 , C22C38/22 , C22C38/24 , C22C38/38 , C22C33/0242
摘要： The invention relates to an iron-based high-temperature wear-resistant sintered alloy. This alloy contains 3.74-13.36 wt % W, 0.39-5.58 wt % V, 0.2-5.78 wt % Cr, 0.1-0.6 wt % Si, 0.39-1.99 wt % Mn, 0.21-1.18 wt % S, and up to 2.16 wt % C. This alloy includes 20-80 wt % of a first phase and 80-20 wt % of a second phase, each distributed therein, in the form of spots. The first phase contains 3-7 wt % W, up to 1 wt % Cr, 0.1-0.6 wt % Si, 0.2-1 wt % Mn, 0.1-0.6 wt % S, and up to 2.2 wt % C. The first phase may contain 0.5-1.5 wt % V, and in this case the vanadium content of the alloy becomes 0.79-5.88 wt %. The second phase contains 7-15 wt % W, 2-7 wt % V, 1-7 wt % Cr, 0.1-0.6 wt % Si, 0.2-1 wt % Mn, 0.1-0.6 wt % S, and up to 2.2 wt % of C. Each phase contains 0.3-1.6 wt % MnS and a carbide of at least tungsten, which are dispersed therein. The second phase further contains 10-20 areal % tungsten carbide (particle diameter: ≧1 &mgr;m) dispersed therein. The alloy further contains 0.3-16 wt % MnS grains dispersed in grain boundaries and/or pores. The alloy is greatly improved in wear resistance, while suppressing damage to mating part in contact with the alloy.
摘要翻译：本发明涉及铁基高温耐磨烧结合金。该合金含有3.74-13.36重量％W，0.39-5.58重量％V，0.2-5.78重量％Cr，0.1-0.6重量％Si，0.39-1.99重量％Mn，0.21-1.18重量％S和至多2.16重量％％C。该合金包括20-80重量％的第一相和80-20重量％的第二相，各自以斑点的形式分布在其中。第一相包含3-7重量％的W，至多1重量％的Cr，0.1-0.6重量％的Si，0.2-1重量％的Mn，0.1-0.6重量％的S和至多2.2重量％的C。第一相可以含有0.5-1.5重量％的V，在这种情况下合金的钒含量为0.79-5.88重量％。第二相包含7-15重量％W，2-7重量％V，1-7重量％Cr，0.1-0.6重量％Si，0.2-1重量％Mn，0.1-0.6重量％S和至多2.2 每个相含有0.3-1.6重量％的MnS和至少分散在其中的钨的碳化物。第二相还包含分散在其中的10-20个区域％碳化钨（粒径：> =1μm）。该合金还含有分散在晶界和/或孔中的0.3-16重量％的MnS晶粒。该合金的耐磨性大大提高，同时抑制与合金接触的配合部件的损伤。

5. 发明授权

US5967110A Fe-based sintered alloy manufacturing process, Fe-based sintered alloy manufactured through thereof and bearing cap 失效
标题翻译： Fe基烧结合金制造工艺，通过其制造的Fe基烧结合金和轴承盖
公开(公告)号：US5967110A
公开(公告)日：1999-10-19
申请号：US65277
申请日：1998-04-23
申请人： Tadayuki Tsutsui , Bo Hu , Kei Ishii , Hideo Shikata , Jun Sakai
发明人： Tadayuki Tsutsui , Bo Hu , Kei Ishii , Hideo Shikata , Jun Sakai
IPC分类号： F16C35/00 , B22F3/10 , B22F7/00 , C22C33/02 , F02F7/00
CPC分类号： B22F3/1003
摘要： There is disclosed a method for manufacturing an Fe-based sintered alloy which is superb in machinability. This process comprises the steps of coating a paste-like coating agent including a compound of boron to a surface of a compact of Fe-based or Fe, Cu-based sintered alloy powder including carbon or a pre-sintered compact obtained by heating the compact at a diffusion temperature or less of carbon, and sintering a resultant compact or a pre-sintered compact at a diffusion temperature or more of carbon. An Fe-based sintered alloy manufactured through this process and a bearing cap made of such an Fe-based sintered alloy are also disclosed. In the invention, a film including a compound of boron and pyrolytic resin can be used instead of the paste-like coating agent.
摘要翻译：公开了一种制造铁素体烧结合金的方法，该方法在机械加工性方面是极好的。该方法包括以下步骤：将包含硼化合物的糊状涂层剂涂覆在包含碳的Fe基或Fe，Cu基烧结合金粉末或通过加热该压块获得的预烧结体在扩散温度以下的碳上，在碳的扩散温度以上烧结得到的压块或预烧结体。还公开了通过该方法制造的Fe基烧结合金和由这种Fe基烧结合金制成的轴承盖。在本发明中，可以使用含有硼化合物和热解性树脂的膜代替膏状涂布剂。

6. 发明授权

US5049183A Sintered machine part and method 失效
标题翻译：烧结机零件及方法
公开(公告)号：US5049183A
公开(公告)日：1991-09-17
申请号：US589413
申请日：1990-09-28
申请人： Tsutomu Saka , Akira Fujiwara , Tadayuki Tsutsui , Osamu Murai , Kei Ishii
发明人： Tsutomu Saka , Akira Fujiwara , Tadayuki Tsutsui , Osamu Murai , Kei Ishii
IPC分类号： F16D23/06 , B22F1/00 , B22F5/00 , C22C33/02 , C22C38/00 , C22C38/16
CPC分类号： C22C33/0257 , C22C33/0207
摘要： A method of manufacturing a sintered machine part, by which the machine part can be manufactured to be sufficiently strong, wear and abrasion resistive, and durable against the fatigue caused by recursive impacts, without the heat treatments. In the method, a machine part composed of 0.1 to 0.8% of carbon by weight, 2 to 6% of nickel by weight, 0.6 to 1.6% of molybdenum by weight, 1 to 3% of copper by weight and balance iron is manufactured by mixing partially diffused alloy powder composed of 2 to 6% of nickel by weight, 0.4 to 0.6% of molybdenum by weight, 1 to 3% of copper by weight and balance iron with graphite powder amounting to 0.1 to 0.8% by weight and molybdenum simple powder having 2 to 7 .mu.m mean particle size amounting to 0.2 to 1% by weight, and then by compacting the mixed powder and sintering the compact.
摘要翻译：一种制造烧结机部件的方法，通过该方法可以将机器部件制造得足够坚固，耐磨耗和耐磨性，并且耐受由循环冲击引起的疲劳，而不进行热处理。在该方法中，由0.1重量％〜0.8重量％的重量，2重量％以上6重量％的镍，0.6重量％〜1.6重量％的钼，1重量％以上的铜和1重量％的铁组成的机器部件由混合部分扩散合金粉末，其组成为2重量％〜6重量％的镍，0.4重量％〜0.6重量％的钼，1重量％〜3重量％的铜，余量为石墨粉末的铁为0.1〜0.8重量％，钼简单平均粒径为2〜7μm的粉末为0.2〜1重量％，然后压制混合粉末并烧结该成形体。

7. 发明授权

US4778522A Wear resistant iron-base sintered alloy 失效
标题翻译：耐磨铁基烧结合金
公开(公告)号：US4778522A
公开(公告)日：1988-10-18
申请号：US23631
申请日：1987-03-09
申请人： Yoshihiro Maki , Makoto Kano , Akira Fujiki , Ichiro Tanimoto , Hiroyuki Endo , Yukata Ikenoue , Kei Ishii
发明人： Yoshihiro Maki , Makoto Kano , Akira Fujiki , Ichiro Tanimoto , Hiroyuki Endo , Yukata Ikenoue , Kei Ishii
IPC分类号： C22C38/00 , C22C33/02 , C22C38/52 , C22C29/06 , C22C29/08
CPC分类号： C22C33/0278
摘要： A wear resistant iron-base sintered alloy consists essentially of at least one selected from the group consisting of molybdenum and tungsten, ranging from 5 to 20% by weight, chromium ranging from 2 to 10% by weight, silicon ranging from 0.1 to 0.9% by weight, manganese ranging not more than 0.7% by weight, phosphorus ranging not more than 0.05% by weight, carbon ranging from 0.1 to 0.8% by weight, boron ranging from 0.5 to 2.0% by weight, and balance including iron and an impurity, so that fine multiple carbide, multiple boride, and/or multiple carbide-boride can be homogeneously dispersed as hard grains in the structure of a matrix, thereby exhibiting excellent wear resistance, scuffing resistance and pitting resistance.
摘要翻译：耐磨铁基烧结合金主要由选自钼和钨组成的组中的至少一种组成，其范围为5-20重量％，2-10重量％的铬，0.1-0.9重量％的硅，的锰，不超过0.7重量％，磷不超过0.05重量％，碳为0.1〜0.8重量％，硼为0.5〜2.0重量％，余量为铁和杂质，使得多个碳化物，多重硼化物和/或多个碳化物 - 硼化物能够在基体的结构中均匀地分散成硬质颗粒，从而表现出优异的耐磨性，耐擦伤性和耐点蚀性。

8. 发明申请

US20060171838A1 Sintered sprocket for silent chain and production method therefor 有权
标题翻译：用于无声链的烧结链轮及其制造方法
公开(公告)号：US20060171838A1
公开(公告)日：2006-08-03
申请号：US11397702
申请日：2006-04-05
申请人： Akira Fujiki , Yukihiro Maekawa , Yutaka Mabuchi , Takashi Murata , Takashi Suzuki , Jyun-ichi Yamada , Tadayuki Tsutsui , Kei Ishii
发明人： Akira Fujiki , Yukihiro Maekawa , Yutaka Mabuchi , Takashi Murata , Takashi Suzuki , Jyun-ichi Yamada , Tadayuki Tsutsui , Kei Ishii
IPC分类号： B22F3/12
CPC分类号： C22C33/0264 , B22F3/164 , B22F5/08 , B22F2003/023 , B22F2003/248 , B22F2998/00 , B22F2998/10 , B22F2999/00 , C22C33/02 , F01L1/022 , F01L2101/00 , F01L2103/00 , F16H55/06 , F16H55/30 , B22F2207/11 , B22F9/082 , B22F3/02 , B22F3/10 , B22F3/24 , B22F3/1109
摘要： A sintered sprocket for a silent chain is obtained from a material with few addition elements by a simple densifying method. The sintered sprocket is made of an ferrous material having an ovarall composition containing Cu at 1 to 2%, C at 0.5 to 0.8%, Mn as an inevitable impurity at 0.10% or less, and balance of Fe and other inevitable impurities by mass and has a density of 7.1 Mg/m3 or higher, 65 HRA or higher as a hardness in the gear teeth, and a martensite, sorbite, bainite, or their mixed structure as a cross-sectional microscopic structure in at least the gear teeth and the peripheral area of the gear teeth.
摘要翻译：用于无声链的烧结链轮通过简单的致密化方法由具有少量添加元素的材料获得。烧结链轮由含有1〜2％的Cu，0.5〜0.8％的C，0.10％以下的不可避免的杂质的Mn，以及Fe等不可避免的杂质和/ 作为齿轮齿的硬度的密度为7.1Mg / m 3以上，65HRC以上的密度，作为横截面微观结构的马氏体，索氏体，贝氏体或它们的混合结构至少在齿轮齿和齿轮齿的周边区域。

9. 发明申请

US20050039575A1 Sintered sprocket for silent chain and production method therefor 有权
标题翻译：用于无声链的烧结链轮及其制造方法
公开(公告)号：US20050039575A1
公开(公告)日：2005-02-24
申请号：US10885023
申请日：2004-07-07
申请人： Akira Fujiki , Yukihiro Maekawa , Yutaka Mabuchi , Takashi Murata , Takashi Suzuki , Jyun-ichi Yamada , Tadayuki Tsutsui , Kei Ishii
发明人： Akira Fujiki , Yukihiro Maekawa , Yutaka Mabuchi , Takashi Murata , Takashi Suzuki , Jyun-ichi Yamada , Tadayuki Tsutsui , Kei Ishii
IPC分类号： B22F3/02 , B22F3/24 , B22F5/08 , C21D9/32 , C22C33/02 , C22C38/00 , C22C38/16 , F16H55/06 , F16H55/30 , C22C29/00
CPC分类号： C22C33/0264 , B22F5/08 , B22F2003/145 , B22F2003/241 , B22F2003/248 , B22F2998/10 , F01L1/022 , F01L2101/00 , F01L2103/00 , F16H55/06 , F16H55/30 , B22F3/02 , B22F3/10 , B22F3/18 , B22F3/24
摘要： A sintered sprocket has a high overall density and excellent contact pressure resistance. The sprocket is produced from a sintered alloy selected from the following alloys ((1) to (3)), is densified to have a relative density of 95% or higher in the surface layer of the gear teeth by forming by rolling, having a surface hardness of 700 HV or higher, and is useful for a crankshaft, a cam shaft, a balancer shaft, or a water pump shaft of an internal combustion engine: (1) an Fe—Mo—C based sintered alloy containing Mo at 1.0 to 2.0% by mass; (2) an Fe—Mo—Ni—C based sintered alloy containing Mo at more than 1.0 and not more than 2.0% by mass, and Ni at more than 1.0 and not more than 2.5% by mass, or (3) an Fe—Mo—Ni—Cu—C based sintered alloy containing Mo at 0.3 to 1.0% by mass, Ni at not less than 1.5 to less than 3.0% by mass, and Cu at 1.0 to 2.5% by mass.
摘要翻译：烧结链轮具有高的总体密度和优异的耐接触压力。链轮由选自以下合金（（1）〜（3））的烧结合金制成，通过轧制成形来致密化，齿轮齿表面层的相对密度为95％以上，具有表面硬度为700HV以上，可用于内燃机的曲轴，凸轮轴，平衡轴或水泵轴：（1）含有Mo为1.0的Fe-Mo-C系烧结合金至2.0质量％（2）含有大于1.0且不大于2.0质量％的Mo的Ni-Fe-Mo-Ni-C系烧结合金，Ni大于1.0质量％以上且2.5质量％以下的Fe， -Mo-Ni-Cu-C系烧结合金，其含有0.3〜1.0质量％的Mo，不小于1.5质量％以上且小于3.0质量％的Ni，1.0〜2.5质量％的Cu。

10. 发明申请

US20050014016A1 Mechanical fuse and production method for the same 失效
标题翻译：机械保险丝和制作方法相同
公开(公告)号：US20050014016A1
公开(公告)日：2005-01-20
申请号：US10859128
申请日：2004-06-03
申请人： Takashi Suzuki , Tadayuki Tsutsui , Kei Ishii , Yoshihiro Tanimura
发明人： Takashi Suzuki , Tadayuki Tsutsui , Kei Ishii , Yoshihiro Tanimura
IPC分类号： B22F3/24 , B22F5/00 , C22C33/02 , C22C38/00 , C22C38/04 , C23C8/02 , C23C8/32 , C23C22/24 , F16D9/00 , F16D9/06 , B32B15/00
CPC分类号： C22C33/0271 , B22F5/00 , B22F2003/241 , B22F2998/10 , C22C33/0214 , C23C8/02 , F16D9/06 , F16D2300/10 , Y10T428/12493 , Y10T428/12576 , Y10T428/12611 , Y10T428/12951 , Y10T428/249953 , B22F3/02 , B22F3/1035 , B22F3/24
摘要： A mechanical fuse has further improved and stabilized fatigue limit ratio, and can obtain high reliability under a using condition in which cyclic loading is applied. The mechanical fuse comprises Fe-based sintered alloy comprising at least one element of P at 0.15 to 1.5 mass %, Si at 0.4 to 2.0 mass %, and Mn at 1.0 to 4.0 mass %, and the remainder consisting of Fe and inevitable impurities, wherein an iron oxide layer is formed on a pore inner wall, and the pores have roundness of 0.004 or more. A method of production therefore is also provided.
摘要翻译：机械保险丝进一步改善并稳定的疲劳极限比，并且可以在施加循环加载的使用条件下获得高可靠性。所述机械熔断体包含Fe系烧结合金，其包含0.15〜1.5质量％的P的至少一种元素，0.4〜2.0质量％的Si，1.0〜4.0质量％的Mn，余量由Fe和不可避免的杂质构成，其中在孔内壁上形成氧化铁层，孔的圆度为0.004以上。因此也提供了一种生产方法。

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