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1.发明授权Low energy level powder for plasma deposition having solid lubricant properties 失效用于等离子体沉积的低能级粉末具有固体润滑剂特性
公开(公告)号：US5863870A
公开(公告)日：1999-01-26
申请号：US799738
申请日：1997-08-18
CPC分类号： B22F9/082 , B22F1/0085 , C22C32/0021 , C22C32/0026 , C23C4/06 , C23C4/08 , C23C4/11 , C23C4/16 , B22F2009/0828 , B22F2998/00 , B22F2999/00
摘要： An iron or copper based metal powder useful for plasma deposition of a coating that has a dry coefficient of friction 0.75 or less and readily conducts heat through the coating. The powder comprises (a) H.sub.2 O atomized and annealed particles consisting essentially of (by weight) carbon 0.15-0.85%, oxygen 0.1-0.45%, an air hardening agent selected from manganese and nickel of 0.1-06.5%, and the remainder iron or copper, with at least 90% of the particles having oxygen and iron or copper combined in the lowest atomic oxygen form for an oxide of such metal.A method of making anti-friction iron powder that is economical, selectively produces FeO and promotes fine flowable particles. The method comprises (a) steam atomization of a molten steel that excludes other oxygen, the steel containing carbon up to 0.4% by weight to produce a collection of comminuted particles, and (b) annealing the particles in an air atmosphere for a period of time of 0.25-2.0 hours in a temperature range of 800.degree.-1400.degree. F. to reduce carbon in the particles to about 0.2% or sponge iron by reducing Fe.sub.3 O.sub.4 or Fe.sub.2 O.sub.3 in CO and (H.sub.2 O steam) to attain nearly all iron with nearly all FeO and 0.1.degree. to 0.85.degree. C.
摘要翻译： 用于等离子体沉积涂层的铁或铜基金属粉末，其干摩擦系数为0.75或更小，并且容易地通过涂层传导热量。 粉末包含（a）主要由（重量）碳0.15-0.85％，氧0.1-0.45％，选自锰和镍的空气硬化剂为0.1-06.5％的H 2 O雾化和退火的颗粒，其余为铁或 铜，其中至少90％的颗粒具有氧和铁或铜以最低的原子氧形式组合用于这种金属的氧化物。 制备经济的抗摩擦铁粉的方法，选择性地产生FeO并促进细流动颗粒。 该方法包括：（a）排除其它氧气的钢水的蒸汽雾化，含有碳的钢含量高达0.4重量％，以产生粉碎颗粒的集合，和（b）在空气气氛中将颗粒退火一段时间 时间为0.25-2.0小时，通过减少CO和（H 2 O蒸汽）中的Fe 3 O 4或Fe 2 O 3将颗粒中的碳还原成约0.2％或海绵铁，几乎可以获得几乎所有的铁 所有FeO和0.1〜0.85℃
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2.发明授权Low alloy steel powder for plasma deposition having solid lubricant properties 失效用于等离子体沉积的低合金钢粉末具有固体润滑剂性能
公开(公告)号：US5663124A
公开(公告)日：1997-09-02
申请号：US352666
申请日：1994-12-09
CPC分类号： B22F9/082 , B22F1/0085 , C22C32/0021 , C22C32/0026 , C23C4/06 , C23C4/08 , C23C4/11 , C23C4/16 , B22F2009/0828 , B22F2998/00 , B22F2999/00
摘要： An iron or copper based metal powder useful for plasma deposition of a coating that has a dry coefficient of friction 0.75 or less and readily conducts heat through the coating. The powder comprises (a) H.sub.2 O atomized and annealed particles consisting essentially of (by weight) carbon 0.15-85%, oxygen 0.1-0.45%, an air hardening agent selected from manganese and nickel of 0.1-6.5%, and the remainder iron or copper, with at least 90% of the particles having oxygen and iron or copper combined in the lowest atomic oxygen form for an oxide of such metal.A method of making anti-friction iron powder that is economical, selectively produces FeO and promotes fine flowable particles. The method comprises (a) steam atomization of a molten steel that excludes other oxygen, the steel containing carbon up to 0.4% by weight to produce a collection of comminuted particles, and (b) annealing the particles in an air atmosphere for a period of time of 0.25-2.0 hours in a temperature range of 800.degree.-1400.degree. F. to reduce carbon in the particles to about 0.2% or sponge iron by reducing Fe.sub.3 O.sub.4 or Fe.sub.2 O.sub.3 in CO and (H.sub.2 O steam) to attain nearly all iron with nearly all FeO and 0.1.degree. to 0.85.degree. C.
摘要翻译： 用于等离子体沉积涂层的铁或铜基金属粉末，其干摩擦系数为0.75或更小，并且容易地通过涂层传导热量。 粉末包括（a）基本上由（重量）碳0.15-85％，氧0.1-0.45％，选自锰和镍的0.1-6.5％的空气硬化剂组成的H 2 O雾化和退火的颗粒，其余为铁或 铜，其中至少90％的颗粒具有氧和铁或铜以最低的原子氧形式组合用于这种金属的氧化物。 制备经济的抗摩擦铁粉的方法，选择性地产生FeO并促进细流动颗粒。 该方法包括：（a）排除其它氧气的钢水的蒸汽雾化，含有碳的钢含量高达0.4重量％，以产生粉碎颗粒的集合，和（b）在空气气氛中将颗粒退火一段时间 时间为0.25-2.0小时，通过减少CO和（H 2 O蒸汽）中的Fe 3 O 4或Fe 2 O 3将颗粒中的碳还原成约0.2％或海绵铁，几乎可以获得几乎所有的铁 所有FeO和0.1〜0.85℃
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3.发明授权Low alloy steel powder for plasma deposition having solid lubricant properties 失效用于等离子体沉积的低合金钢粉末具有固体润滑剂性能
公开(公告)号：US5846349A
公开(公告)日：1998-12-08
申请号：US798207
申请日：1997-02-10
CPC分类号： B22F9/082 , B22F1/0085 , C22C32/0021 , C22C32/0026 , C23C4/06 , C23C4/08 , C23C4/11 , C23C4/16 , B22F2009/0828 , B22F2998/00 , B22F2999/00
摘要： An iron or copper based metal powder useful for plasma deposition of a coating that has a dry coefficient of friction 0.75 or less and readily conducts heat through the coating. The powder comprises (a) H.sub.2 O atomized and annealed particles consisting essentially of (by weight) carbon 0.15-0.85%, oxygen 0.1-0.45%, an air hardening agent selected from manganese and nickel of 0.1-6.5%, and the remainder iron or copper, with at least 90% of the particles having oxygen and iron or copper combined in the lowest atomic oxygen form for an oxide of such metal. A method of making anti-friction iron powder that is economical, selectively produces FeO and promotes fine flowable particles. The method comprises (a) steam atomization of a molten steel that excludes other oxygen, the steel containing carbon up to 0.4% by weight to produce a collection of comminuted particles, and (b) annealing the particles in an air atmosphere for a period of time of 0.25-2.0 hours in a temperature range of 800.degree.-1400.degree. F. to reduce carbon in the particles to about 0.2% or sponge iron by reducing Fe.sub.3 O.sub.4 or Fe.sub.2 O.sub.3 in CO and (H.sub.2 O steam) to attain nearly all iron with nearly all FeO and 0.1 to 0.85 C.
摘要翻译： 用于等离子体沉积涂层的铁或铜基金属粉末，其干摩擦系数为0.75或更小，并且容易地通过涂层传导热量。 粉末包含（a）基本上由（重量）碳0.15-0.85％，氧0.1-0.45％，选自锰和镍的0.1-6.5％的空气硬化剂组成的H 2 O雾化和退火的颗粒，其余为铁或 铜，其中至少90％的颗粒具有氧和铁或铜以最低的原子氧形式组合用于这种金属的氧化物。 制备经济的抗摩擦铁粉的方法，选择性地产生FeO并促进细流动颗粒。 该方法包括：（a）排除其它氧气的钢水的蒸汽雾化，含有碳的钢含量高达0.4重量％，以产生粉碎颗粒的集合，和（b）在空气气氛中将颗粒退火一段时间 时间为0.25-2.0小时，通过减少CO和（H 2 O蒸汽）中的Fe 3 O 4或Fe 2 O 3将颗粒中的碳还原成约0.2％或海绵铁，几乎可以获得几乎所有的铁 所有FeO和0.1至0.85C。
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公开(公告)号：US5671532A
公开(公告)日：1997-09-30
申请号：US352952
申请日：1994-12-09
IPC分类号： F02F1/00 , C23C4/00 , C23C4/02 , C23C4/14 , F02B75/18 , F02B75/22 , F02F1/10 , F02F1/16 , F02F1/20 , F02F7/00 , B23P15/00
CPC分类号： F02F7/00 , C23C4/00 , C23C4/02 , C23C4/14 , F02F1/20 , F02B2075/1832 , F02B75/22 , Y10T29/49272 , Y10T29/49865
摘要： A method of making coated engine blocks by (a) casting a metallic engine block having one or more cylinder bores; (b) fabricating a thin walled liner for each bore, the liner being constituted of extruded metallic tubing having a cleansed inner surface, a wall thickness controlled to a thickness of 1-3 mm.+-.15 microns, the outer diameter of the liner being slightly greater than the internal diameter of the cylinder bores; (c) relatively rotating the liner with respect to one or more nozzles for applying a plurality of materials to the internal surface of the liner, the materials comprising first a metal texturing fluid that is applied at high pressures to expose fresh metal of the surface, secondly a bond coating material that is thermally sprayed to form a metallurgical bond with the liner internal surface, and a top coating of anti-friction material that is adheringly plasma sprayed to the bond coating; (d) honing the coated internal surface to remove up to 150 microns of top coating, leaving a finish surface that is concentric to the tube axis within .+-.15 microns; and (e) interference fitting the coated liner to the cylinder bore by freezing the liner while maintaining the block at or above ambient temperature to permit implanting of the liner.
摘要翻译： （a）铸造具有一个或多个气缸孔的金属发动机缸体的方法来制造涂覆的发动机缸体; （b）为每个孔制造薄壁衬里，衬垫由具有洁净的内表面的挤压金属管构成，壁厚控制在1-3mm +/- 15微米的厚度，衬垫的外径为 略大于缸孔的内径; （c）相对于用于将多种材料施加到衬套的内表面的一个或多个喷嘴相对旋转衬套，所述材料首先包括在高压下施加以暴露表面的新鲜金属的金属织构流体， 其次是热喷涂以与衬里内表面形成冶金结合的粘结涂层材料，以及粘附剂等离子体喷涂到粘结涂层上的抗磨材料的顶涂层; （d）珩磨涂层的内表面以除去高达150微米的顶涂层，留下与管轴同心于±15微米内的精加工表面; 和（e）通过冷冻内衬而将涂覆的衬套过盈配合到缸孔，同时将块保持在环境温度或高于环境温度以允许衬套的注入。
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公开(公告)号：US20220273348A1
公开(公告)日：2022-09-01
申请号：US17672821
申请日：2022-02-16
摘要： A bunion correction device is disclosed which secures a plate to a metatarsal head before an osteotomy is performed to allow for control of the metatarsal head during the bunion correction procedure. The device comprises a body component having two opposing portions positioned orthogonally to one another with a plurality of screw apertures positioned on both portions of the implant. Bone screws or fasteners are driven laterally through the apertures of the first portion into the metatarsal head, securing the first portion or base to the metatarsal head. An osteotomy is performed just proximal to the plate and the metatarsal head is translated to correct the bunion. Bone screws are then placed in the second portion apertures to fix the correction and provide compression of the osteotomy.
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公开(公告)号：US5648122A
公开(公告)日：1997-07-15
申请号：US314014
申请日：1994-09-28
摘要： A method of preparing the surface of a conductive metal to be non-smooth and non-passivated for reception of thermal sprayed coatings. The method comprises melting and rapidly solidifying globules of the surface by electrical discharge by bring an electrode (anode) in close gap-sparking proximity to the surface, filling the gap with an electrolyte containing a halogenated hydrocarbon fluid present in an amount of 2-5% of the electrolyte, and imposing a pulsed DC voltage (i.e. 20-100 volts at 40-200 amps) on the electrode to provide cyclical sparking between the electrode and the surface through the electrolyte resulting in a breakdown of the hydrocarbon to release nascent halogen atoms which attack the surface to prevent passivation during melting and solidification of the globules. The electrolyte is preferably cooled to a temperature below 65.degree. F. during the sparking, and the halogenated hydrocarbon is preferably present in a sufficient amount to attack silicon and aluminum, if such surface is an aluminum alloy containing silicon.
摘要翻译： 一种制备导电金属表面以使其不光滑并且不被钝化以接收热喷涂的方法。 该方法包括通过使电极（阳极）与表面紧密间隙火花接近来通过放电来熔化和快速凝固表面的球，用含有以2-5的量存在的卤代烃流体的电解质填充间隙 电解质的百分比，并且在电极上施加脉冲DC电压（即，40-200安培为20-100伏），以通过电解质在电极和表面之间提供循环火花，导致烃的分解以释放新生卤素 攻击表面以防止在球的熔化和凝固期间钝化的原子。 优选在电火花期间将电解质冷却至65°F以下，如果这种表面是含硅的铝合金，卤代烃优选以足够的量存在以侵蚀硅和铝。
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公开(公告)号：US5872322A
公开(公告)日：1999-02-16
申请号：US794745
申请日：1997-02-03
CPC分类号： C22C33/0207 , C22C33/02 , B22F2003/145 , B22F2998/00 , B22F2998/10
摘要： A method of making a structural iron-based article comprising: (a) blending a compressible base iron powder (max. particle size of 100 microns) a graphite powder to provide carbon in mixture, and a single master alloy powder (average particle size of 10 microns) meltable within the range of 900.degree.-1200.degree. C. (1690.degree.-2220 .degree.F.) to form a mixture, the master alloy powder being present in an amount of 1-5% by weight of the mixture and consisting of (i) hardenability enhancing alloying ingredients selected from Mn, Mo, Ni, Cr, Cu and Fe, with Fe being present only if Cr or Mo is selected and (ii) wetting agents selected from the group of B, Y, Si and rare earth misch metal, the master alloy being devoid of carbon and being proportioned to provide a desired amount of hardenability in the base powder; (b) compacting the mixture to a green density 7.1-7.4 g/cm.sup.3 to form a green part (c) machining the green part to a desired configuration if necessary; (d) sintering the green part to achieve liquification of the master alloy to densify the part to 7.3-7.5 g/cm.sup.3 without substantially varying the configuration of the green; and (e) cooling the sintered part at a controlled rate to form a desired microstructure such as essentially a bainite or ferrite/pearlite microstructure.
摘要翻译： 一种制造结构铁基制品的方法，包括：（a）将石墨粉末的可压缩基底铁粉（最大粒径为100微米）混合以提供混合物中的碳，以及单一母合金粉末（平均粒径为 10微米）可在900-1200℃（1690℃-2220°F）范围内熔化，形成混合物，该母合金粉末的存在量为该混合物的1-5重量％，并且由 （i）选择Mn，Mo，Ni，Cr，Cu和Fe的淬透性增强合金成分，只有当选择Cr或Mo时，才存在Fe，（ii）选自B，Y，Si和 稀土稀土金属，母合金没有碳并成比例，以在基础粉末中提供所需量的淬透性; （b）将混合物压实成7.1-7.4g / cm 3的绿色密度以形成绿色部分（c），如果需要，将绿色部分加工成所需的构型; （d）烧结绿色部分以实现母合金的液化，将部分致密化为7.3-7.5g / cm 3，而基本上不改变绿色的构型; 和（e）以受控的速率冷却烧结部分以形成所需的微结构，例如基本上为贝氏体或铁素体/珠光体组织。
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