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公开(公告)号：US5259435A
公开(公告)日：1993-11-09
申请号：US620855
申请日：1990-12-03
申请人： Hirohisa Miura , Masaoki Hashimoto , Mamoru Okamoto , Shoichi Tsuchiya , Wataru Yagi , Masami Ishii
发明人： Hirohisa Miura , Masaoki Hashimoto , Mamoru Okamoto , Shoichi Tsuchiya , Wataru Yagi , Masami Ishii
CPC分类号： B22D19/14 , Y10T428/252 , Y10T428/257 , Y10T428/26 , Y10T428/2996
摘要： A method of forming a metallic composite product having a specific gravity no greater than 1.8 and a thermal expansion no greater than 16.times.10.sup.-6 .degree. C. in a preheated mold. The portion of the mold between a cavity and the gate has a stainless steel wire gauge for retaining particles. The mold is filled with screened fly ash, glass, hollow spheres having a particle size in the range of 50 to 200 micrometers and a globularness of at least 90%, which has been preheated to the same temperature as the mold. Molten aluminum alloy is injected into the mold at a pressure in the range of from 40 to 80 kgf cm.sup.2 at the gate and at a flow velocity in the range of 0.08 to 0.20 m/second.
摘要翻译： 在预热的模具中形成比重不大于1.8且热膨胀不大于16×10 -6℃的金属复合产品的方法。 模具在腔和门之间的部分具有用于保持颗粒的不锈钢丝规。 模具中填充有已经预热到与模具相同温度的筛选的粉煤灰，玻璃，中空球体，粒径在50-200微米范围内，球状度至少为90％。 熔融铝合金在浇口处以40至80kgfcm 2的压力和0.08至0.20m /秒范围内的流速注入模具中。
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公开(公告)号：US5202293A
公开(公告)日：1993-04-13
申请号：US892481
申请日：1992-06-03
申请人： Mamoru Okamoto , Hirohisa Miura , Shoichi Tsuchiya , Yoshio Huwa , Hirohumi Michioka , Masatoshi Kubota , Yoshiteru Nakagawa , Satoru Nakatani
发明人： Mamoru Okamoto , Hirohisa Miura , Shoichi Tsuchiya , Yoshio Huwa , Hirohumi Michioka , Masatoshi Kubota , Yoshiteru Nakagawa , Satoru Nakatani
CPC分类号： C04B35/83 , F16D69/023
摘要： A carbon fiber reinforced carbon of the present invention is composed of a sintered body comprising precursor carbonaceous fiber and self-sintering carbonaceous powder with the precursor carbonaceous fiber buried therein. Since the precursor carbonaceous fiber working as a reinforcement and the self-sintering carbonaceous powder working as a binder come to have substantially the same physical properties (strength, shrinkage rate and the like), the boudary adhesion between them improves, thereby giving the sintered body high strength and excellent abrasion resistance. When the precursor carbonaceous fiber is subjected to a surface treatment using a viscous material, the wettability of the surface of the precursor carbonaceous fiber increases, thereby further improving the boundary adhesion between the precursor carbonaceous fiber and the self-sintering precursor carbonaceous powder.
摘要翻译： 本发明的碳纤维增强碳由包含前体碳质纤维的烧结体和埋入其中的前体碳质纤维的自烧结碳质粉末组成。 由于用作增强剂的前体碳质纤维和作为粘合剂的自烧结碳质粉末具有基本相同的物理性能（强度，收缩率等），所以它们之间的双向粘合性提高，由此得到烧结体 高强度和优异的耐磨性。 当使用粘性物质对前体碳质纤维进行表面处理时，前体碳质纤维的表面的润湿性增加，从而进一步提高前体碳质纤维与自烧结前体碳质粉末之间的边界粘附性。
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公开(公告)号：US5169718A
公开(公告)日：1992-12-08
申请号：US540002
申请日：1990-06-19
申请人： Hirohisa Miura , Mamoru Okamoto , Shoichi Tsuchiya , Yoshio Fuwa , Hirohumi Michioka , Yoshiteru Nakagawa , Satoru Nakatani
发明人： Hirohisa Miura , Mamoru Okamoto , Shoichi Tsuchiya , Yoshio Fuwa , Hirohumi Michioka , Yoshiteru Nakagawa , Satoru Nakatani
CPC分类号： F16D69/023 , C04B35/83 , Y10T428/2918 , Y10T428/30
摘要： Disclosed is a sliding member having a predetermined shape and including: a sintered body obtained by sintering a composite body including: preliminary carbonized carbonaceous fiber; inorganic powder or inorganic fiber; and self-sintering carbonaceous powder with the preliminarily carbonized carbonaceous fiber and the inorganic powder or the inorganic fiber buried therein. The sliding member has a high and stable friction coefficient (.mu.), high strength, excellent abrasion resistance, and is manufacturable at a low cost. Further, the friction coefficient (.mu.) and the other properties of the sliding member can be controlled depending on an application of a sliding member by selecting an optimum inorganic powder or inorganic fiber. Particularly, when boron compound powder is selected as the inorganic powder, the friction coefficient (.mu.) of the sliding member can be suppressed to 0.15 or less, and the load at seizure thereof can be improved to 100 kgf/cm.sup.2 or more.
摘要翻译： 公开了一种具有预定形状的滑动构件，包括：通过烧结复合体而获得的烧结体，所述复合体包括：初步碳化碳质纤维; 无机粉末或无机纤维; 和预先碳化的碳质纤维和无机粉末或其中埋入的无机纤维的自烧碳质粉末。 滑动构件具有高且稳定的摩擦系数（μ），高强度，优异的耐磨性，并且可以低成本制造。 此外，可以通过选择最佳无机粉末或无机纤维，根据滑动构件的应用来控制滑动构件的摩擦系数（μ）和其它性质。 特别地，当选择硼化合物粉末作为无机粉末时，可以将滑动部件的摩擦系数（μ）抑制在0.15以下，并且将其挟持时的负荷提高到100kgf / cm 2以上。
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公开(公告)号：US6159439A
公开(公告)日：2000-12-12
申请号：US137755
申请日：1998-08-21
IPC分类号： C01B21/072 , C04B35/626
CPC分类号： C01B21/0722 , C01P2004/61 , C01P2004/62 , C01P2006/11 , C01P2006/12 , C01P2006/21
摘要： A process for producing aluminum nitride comprises a step of nitriding directly a mixed powder comprising of, a bulky aluminum powder composed of aluminum or an aluminum alloy powder which occupies 50 to 97% by weight and whose sieve opening of JIS is not less than 210 .mu.m (70 mesh); and a nitriding accelerator powder composed of at least one kind of an aluminum powder and an aluminum alloy powder which occupy the balance of 50 to 3% by weight and whose sieve opening is less than 210 .mu.m (70 mesh); under a nitrogen gas atmosphere of the temperature ranging from 500 to 1000.degree. C. In the present invention, there can be obtained an aluminum nitride which is easy to be crushed by hand by using a mortar.
摘要翻译： 一种氮化铝的制造方法，其特征在于，包括将由铝或铝合金粉末构成的体积大的铝粉末占50〜97重量％，JIS的筛孔为210μm以上的混合粉末直接氮化的工序 m（70目）; 和由至少一种铝粉和铝合金粉末构成的氮化促进剂粉末，其占50〜3重量％，筛孔小于210μm（70目）; 在500〜1000℃的氮气气氛下进行。在本发明中，可以使用研钵容易地用手压碎的氮化铝。
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公开(公告)号：US5888269A
公开(公告)日：1999-03-30
申请号：US819212
申请日：1997-03-17
申请人： Yasuhiro Yamada , Hirohisa Miura , Mamoru Okamoto , Takashi Matsufuji , Taro Tatsumi , Kazuo Fujii
发明人： Yasuhiro Yamada , Hirohisa Miura , Mamoru Okamoto , Takashi Matsufuji , Taro Tatsumi , Kazuo Fujii
CPC分类号： C23C12/02
摘要： A case nitrided aluminum product is produced by contacting an aluminum product with a nitriding agent at a part of a surface thereof at least, and by nitriding the aluminum product at the surface with an ambient gas at a temperature of a melting point of the aluminum product or less while keeping the aforementioned contact. The nitriding agent includes an aluminum powder, and the ambient gas virtually includes a nitrogen gas. The resulting nitriding layer has a depth of 5 micrometers or more, and it exhibits a case hardness of from 250 to 1,200 mHv. Thus, it is possible to form the deep and hard nitriding layer on the aluminum product with ease under the conditions where it has been said to be too difficult to nitride aluminum products. The case nitrided aluminum product can appropriately make sliding parts which require high wear resistance.
摘要翻译： 一种氮化铝产品是通过至少在一部分表面上使铝制品与氮化剂接触而制造的，并且通过在铝制品的熔点温度下将表面上的铝产品用环境气体氮化 或更少，同时保持上述接触。 氮化剂包括铝粉末，并且环境气体实际上包括氮气。 得到的氮化层的深度为5微米以上，壳状硬度为250〜1200mHv。 因此，在被认为太难以氮化铝制品的条件下，可以容易地在铝制品上形成深层和硬质氮化层。 氮化铝制品可以适当地制造需要高耐磨性的滑动部件。
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公开(公告)号：US5514225A
公开(公告)日：1996-05-07
申请号：US317525
申请日：1994-10-04
申请人： Yasuhiro Yamada , Hirohisa Miura , Mamoru Okamoto , Takashi Matsufuji , Taro Tatsumi , Kazuo Fujii
发明人： Yasuhiro Yamada , Hirohisa Miura , Mamoru Okamoto , Takashi Matsufuji , Taro Tatsumi , Kazuo Fujii
CPC分类号： C23C8/60
摘要： A case nitrided aluminum product is produced by contacting an aluminum product with a nitriding agent at a part of a surface thereof at least, and by nitriding the aluminum product at the surface with an ambient gas at a temperature of a melting point of the aluminum product or less while keeping the aforementioned contact. The nitriding agent includes an aluminum powder, and the ambient gas virtually includes a nitrogen gas. The resulting nitriding layer has a depth of 5 micrometers or more, and it exhibits a case hardness of from 250 to 1,200 mHv. Thus, it is possible to form the deep and hard nitriding layer on the aluminum product with ease under the conditions where it has been said to be too difficult to nitride aluminum products. The case nitrided aluminum product can appropriately make sliding parts which require high wear resistance.
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7.发明授权
公开(公告)号：US5582655A
公开(公告)日：1996-12-10
申请号：US471752
申请日：1995-06-06
申请人： Yasuhiro Yamada , Hirohisa Miura , Mamoru Okamoto , Takashi Matsufuji , Taro Tatsumi , Kazuo Fujii
发明人： Yasuhiro Yamada , Hirohisa Miura , Mamoru Okamoto , Takashi Matsufuji , Taro Tatsumi , Kazuo Fujii
CPC分类号： C23C8/60
摘要： A case nitrided aluminum product is produced by contacting an aluminum product with a nitriding agent at a part of a surface thereof at least, and by nitriding the aluminum product at the surface with an ambient gas at a temperature of a melting point of the aluminum product or less while keeping the aforementioned contact. The nitriding agent includes an aluminum powder, and the ambient gas virtually includes a nitrogen gas. The resulting nitriding layer has a depth of 5 micrometers or more, and it exhibits a case hardness of from 250 to 1,200 mHv. Thus, it is possible to form the deep and hard nitriding layer on the aluminum product with ease under the conditions where it has been said to be too difficult to nitride aluminum products. The case nitrided aluminum product can appropriately make sliding parts which require high wear resistance.
摘要翻译： 一种氮化铝产品是通过至少在一部分表面上使铝制品与氮化剂接触而制造的，并且通过在铝制品的熔点温度下将表面上的铝产品用环境气体氮化 或更少，同时保持上述接触。 氮化剂包括铝粉末，并且环境气体实际上包括氮气。 得到的氮化层的深度为5微米以上，壳状硬度为250〜1200mHv。 因此，在被认为太难以氮化铝制品的条件下，可以容易地在铝制品上形成深层和硬质氮化层。 氮化铝制品可以适当地制造需要高耐磨性的滑动部件。
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公开(公告)号：US4533382A
公开(公告)日：1985-08-06
申请号：US608112
申请日：1984-05-08
CPC分类号： B22F9/12
摘要： Fine powder of a metal is made by vaporizing the metal in a vaporization chamber, mixing the metallic vapor with an inert carrier gas, and then adiabatically expanding the mixture through a nozzle, which preferably is a convergent-divergent nozzle. A jet flow from the nozzle is very rapidly cooled by this adiabatic expansion, which quickly condenses the metal vapor in the jet flow into very fine particles. Optionally the jet flow is directed against a metal powder collecting means, which may be a collection plate, but preferably is a bath of oil which entrains the particles and keeps them from agglomerating together by partially neutralizing their surface activity. Thus fine metal powder with particle diameters of the order of a few hundreds of angstroms can be economically produced.
摘要翻译： 通过在蒸发室中蒸发金属，将金属蒸气与惰性载气混合，然后通过优选为收敛扩散喷嘴的喷嘴绝热地使混合物膨胀而制成金属细粉末。 来自喷嘴的射流通过这种绝热膨胀非常快速地冷却，这使得喷射流中的金属蒸气迅速冷凝成非常细的颗粒。 任选地，喷射流被引向金属粉末收集装置，金属粉末收集装置可以是收集板，但是优选地是一种油的浴，其夹带颗粒并通过部分中和它们的表面活性使它们不凝聚在一起。 因此，可以经济地制造粒径为几百埃的细金属粉末。
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9.发明授权Aluminum product having metal diffusion layer, process for producing the same, and paste for metal diffusion treatment 失效具有金属扩散层的铝制品，其制造方法和用于金属扩散处理的糊料
公开(公告)号：US5989734A
公开(公告)日：1999-11-23
申请号：US934754
申请日：1997-09-22
CPC分类号： C23C12/02 , C23C10/30 , Y10T428/12778
摘要： An aluminum product having the metal diffusion layer in the present invention has, on the surface thereof, a metal diffusion layer comprising aluminum and a diffusion metal which is diffused setting aluminum as a matrix and which includes at least one selected from the group consisting of Ni, Cr, Cu, Zn, Mg, Ti and Ag; wherein the diffusion layer is formed by diffusing inclinatorily not less than 1 .mu.m from the surface thereof; and the diffusion metal is not less than 1.0% by weight when the whole of the metal diffusion layer is set to be 100% by weight. Also, in a process for producing an aluminum product having a metal diffusion layer, the surface of the aluminum product is brought into contact with the processing agent including at least the diffusion metal powder; and in this state by conducting heat treatment in the atmosphere including nitrogen, the diffusion metal is diffused on the surface of the aluminum product and the metal diffusion layer is formed. Thus, the present invention supplies the aluminum product having the metal diffusion layer on the surface thereof and the process for producing the aluminum product having this kind of metal diffusion layer on the surface thereof.
摘要翻译： 本发明的具有金属扩散层的铝制品在其表面上具有包含铝和扩散金属的金属扩散层，扩散金属以铝为基质扩散，并且包括选自Ni ，Cr，Cu，Zn，Mg，Ti和Ag; 其特征在于，所述扩散层通过从其表面不均匀地扩散至少1μm而形成。 并且当全部金属扩散层设定为100重量％时，扩散金属不小于1.0重量％。 此外，在具有金属扩散层的铝制品的制造方法中，使铝制品的表面与至少包含扩散金属粉末的处理剂接触， 通过在包括氮的气氛中进行热处理，在该状态下，扩散金属扩散到铝制品的表面，形成金属扩散层。 因此，本发明在其表面上提供具有金属扩散层的铝制品及其表面上具有这种金属扩散层的铝制品的制造方法。
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10.发明授权
公开(公告)号：US4594101A
公开(公告)日：1986-06-10
申请号：US608167
申请日：1984-05-08
IPC分类号： B22F1/00 , B01J12/02 , B01J19/26 , B22F9/02 , B22F9/12 , B22F9/28 , C22C1/10 , C22C32/00 , B22F9/00
CPC分类号： C22C32/0068 , B01J12/02 , B01J19/26 , B22F9/12 , C22C1/1031 , B01J2219/00119 , B01J2219/00132 , B01J2219/00159 , B01J2219/00162 , B01J2219/00191
摘要： A composite fine powder material is made of first particles with average particle diameter less than or equal to about ten microns, each having a composite structure and being made up of a plurality of fine second particles of a ceramic made by reacting together a first metal and a gas, embedded in a matrix of a second metal. This composite fine powder material is made by vaporizing the first metal, mixing the vapor with the gas, expanding the mixture through a first nozzle mechanism for providing adiabatic expansion cooling under reaction between the first metal and the gas to provide the fine second particles of ceramic, producing vapor of the second metal and mixing it in with the fine second particles at the downstream of the first nozzle mechanism, directing the resulting mixture through a second expansion nozzle mechanism to form the first particles of composite structure, and then collecting these first particles.
摘要翻译： 复合细粉末材料由平均粒径小于或等于约10微米的第一颗粒制成，每个颗粒具有复合结构，并且由多个细小的第二颗粒构成，陶瓷通过使第一金属和 一种嵌入第二金属的基体中的气体。 这种复合细粉末材料是通过蒸发第一金属，将蒸气与气体混合，将混合物膨胀通过第一喷嘴机构膨胀，以在第一金属和气体之间的反应下提供绝热膨胀冷却，以提供细小的第二陶瓷颗粒 产生第二金属的蒸汽并在第一喷嘴机构的下游将其与细小的第二颗粒混合，将所得混合物引导通过第二膨胀喷嘴机构以形成复合结构的第一颗粒，然后收集这些第一颗粒 。
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