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11.发明授权
公开(公告)号：US4793969A
公开(公告)日：1988-12-27
申请号：US143869
申请日：1988-01-14
摘要： A process is disclosed for producing a sheet of tungsten heavy alloy which comprises forming metal particles of the alloy wherein each metal particle is a uniform admixture of the alloy components, entraining the particles in a carrier gas, passing the particles and the carrier gas into a high temperature zone at a temperature above the melting point of the matrix phase of the particles and maintaining the particles in the zone for a sufficient time to melt at least the matrix phase of the particles and form spherical particles, followed by rapidly and directly solidifying the high temperature treated material while the material is in flight. A slurry is formed of this high temperature treated material and a liquid medium, the liquid medium is removed from the material and a planar cake is formed of the material, the cake is dried, and sintered to a density equal to or greater than about 90% of the theoretical density of the alloy to form the sheet.
摘要翻译： 公开了一种用于生产钨重合金片的方法，其包括形成合金的金属颗粒，其中每个金属颗粒是合金组分的均匀混合物，将颗粒夹带在载气中，使颗粒和载气流入 在高于颗粒的基质相的熔点的温度下将高温区域保持在该区域中的颗粒至少熔化至少颗粒的基质相并形成球形颗粒，然后快速且直接固化 高温处理材料，同时材料在飞行中。 由该高温处理材料和液体介质形成浆料，从材料中除去液体介质，并由该材料形成平面的饼状物，将滤饼干燥并烧结至等于或大于约90的密度 合金的理论密度的百分比形成片材。
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公开(公告)号：US4783216A
公开(公告)日：1988-11-08
申请号：US904317
申请日：1986-09-08
IPC分类号： B22F1/00
CPC分类号： B22F1/0048 , Y10S75/956
摘要： A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of titanium based spherical particles which are essentially free of elliptical shaped material and elongated particles having rounded ends. The material has a particle size of less than about 50 micrometers. The process for making the spherical particles involves mechanically reducing the size of a starting material to produce a finer powder which is then entrained in a carrier gas and passed through a high temperature zone above the melting point of the finer powder to melt at least about 50% by weight of the powder and form spherical particles of the melted portion. The powder is then directly solidified.
摘要翻译： 公开了一种粉末材料及其制造方法。 粉末材料基本上由基本上不含椭圆形材料的钛基球形颗粒和具有圆形端部的细长颗粒组成。 该材料具有小于约50微米的粒度。 制造球形颗粒的方法包括机械地减小起始材料的尺寸以产生更细的粉末，然后将其夹带在载气中，并通过高于较细粉末熔点的高温区域熔化至少约50 重量％的粉末，并形成熔融部分的球形颗粒。 然后将粉末直接固化。
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13.发明授权
公开(公告)号：US4783215A
公开(公告)日：1988-11-08
申请号：US161924
申请日：1988-02-29
CPC分类号： B22F1/0048 , B22F9/04
摘要： A powder material and a process for producing the material are disclosed. The powder material consists essentially of iron group based and chromium based spherical particles. The material is essentially free of elliptical shaped material and elongated particles having rounded ends. The material has a particle size of less than about 20 micrometers in diameter and has an oxygen content of less than about 0.8% by weight. The process for making the spherical particles involves reducing the size of a starting material to produce a finer powder essentially all of which has a particle size of less than about 20 micrometers in diameter. This is done by fluid energy milling. The finer powder is entrained in a carrier gas and passed through a high temperature zone at a temperature above the melting point of the powder, the temperature being from about 5500.degree. C. to about 17,000.degree. C. and created by a plasma jet, to melt at least about 50% by weight of the powder and form the spherical particles of the melted portion. The powder is then rapidly and directly solidified while in flight. The carbon content of the spherical particles is no greater than the carbon content of the starting material.
摘要翻译： 公开了一种粉末材料及其制造方法。 粉末材料基本上由铁基和铬基球形颗粒组成。 该材料基本上不含椭圆形材料和具有圆形端部的细长颗粒。 材料的直径小于约20微米，氧含量低于约0.8％（重量）。 制造球形颗粒的方法包括减小起始材料的尺寸以产生更细的粉末，其基本上所有的颗粒的直径小于约20微米。 这是通过流体能量铣削完成的。 更细的粉末被夹带在载气中并通过高于粉末熔点的温度的高温区域，温度为约5500℃至约17,000℃，并通过等离子体射流产生， 熔化至少约50重量％的粉末并形成熔融部分的球形颗粒。 然后在飞行中迅速直接固化粉末。 球形颗粒的碳含量不大于原料的碳含量。
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14.发明授权Low oxygen content fine shperical particles and process for producing same by fluid energy milling and high temperature processing 失效低氧含量的精细颗粒和通过流体能量研磨和高温处理生产相同的工艺
公开(公告)号：US4783214A
公开(公告)日：1988-11-08
申请号：US161535
申请日：1988-02-29
CPC分类号： B22F1/0048 , C03B19/1025 , C09C3/048 , A61B2017/00902 , C01P2004/32 , C01P2004/61 , C01P2006/20 , C01P2006/80
摘要： A powder material and a process for producing the material are disclosed. The powder material consists essentially of spherical particles selected from the group consisting of metals, metal alloys, ceramic glasses, crystalline ceramic materials, and combinations thereof. The material is essentially free of elliptical shaped material and elongated particles having rounded ends. The material has a particle size of less than about 20 micrometers in diameter and has an oxygen content of less than about 0.8% by weight. The process for making the spherical particles involves reducing the size of a starting material to produce a finer powder essentially all of which has a particle size of less than about 20 micrometers in diameter. This is done by fluid energy milling. The finer powder is entrained in a carrier gas and passed through a high temperature zone at a temperature above the melting point of the powder, the temperature being from about 5500.degree. C. to about 17,000.degree. C. and created by a plasma jet, to melt at least about 50% by weight of the powder and form spherical particles of the melted portion. The powder is then rapidly and directly solidified while in flight. The carbon content of the particles is no greater than that of the starting material.
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公开(公告)号：US4780131A
公开(公告)日：1988-10-25
申请号：US904318
申请日：1986-09-08
IPC分类号： B22F1/00
CPC分类号： B22F1/0048
摘要： A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of light metal based spherical particles which are essentially free of elliptical shaped material and elongated particles having rounded ends. The process for making the spherical particles involves mechanically reducing the size of a starting material to produce a finer powder which is then entrained in a carrier gas and passed through a high temperature zone above the melting point of the finer powder to melt at least about 50% by weight of the powder and form spherical particles of the melted portion. The powder is directly solidified.
摘要翻译： 公开了一种粉末材料及其制造方法。 粉末材料基本上由基本上不含椭圆形材料的轻金属基球形颗粒和具有圆形端部的细长颗粒组成。 制造球形颗粒的方法包括机械地减小起始材料的尺寸以产生更细的粉末，然后将其夹带在载气中，并通过高于较细粉末熔点的高温区域熔化至少约50 重量％的粉末，并形成熔融部分的球形颗粒。 粉末直接固化。
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公开(公告)号：US4711661A
公开(公告)日：1987-12-08
申请号：US905011
申请日：1986-09-08
IPC分类号： B22F1/00
CPC分类号： B22F1/0048 , Y10S75/956
摘要： A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of copper based spherical particles which are essentially free of elliptical shaped material and elongated particles having rounded ends. The material has a particle size of less than about 20 micrometers. The process for making the spherical particles involves mechanically reducing the size of a starting material to produce a finer powder which is then entrained in a carrier gas and passed through a high temperature zone at a temperature above the melting point of the finer powder to melt at least about 50% by weight of the powder and form the spherical particles of the melted portion. The powder is directly solidified.
摘要翻译： 公开了一种粉末材料及其制造方法。 粉末材料基本上由基本上不含椭圆形材料的铜基球形颗粒和具有圆形端部的细长颗粒组成。 该材料具有小于约20微米的粒度。 制造球形颗粒的方法包括机械地减小起始材料的尺寸以产生更细的粉末，然后将其夹带在载气中，并在高于较细粉末的熔点的温度下通过高温区，以在 至少约50重量％的粉末，并形成熔融部分的球形颗粒。 粉末直接固化。
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公开(公告)号：US4705560A
公开(公告)日：1987-11-10
申请号：US918182
申请日：1986-10-14
CPC分类号： C22C33/0278 , B22F1/0048 , Y10S75/953
摘要： A process is disclosed for producing essentially spherical metallic powder particles. The process involves mechanically agglomerating a mixture comprising powders wherein the powders are selected from the group consisting of metals, metal alloys, metal-ceramic composites, ceramics, and wherein at least one of the powders is a relatively ductile and/or malleable metal. The resulting mechanically agglomerated powder particles are entrained in a carrier gas and passed through a high temperature zone at a temperture above the melting point of the lowest melting component of the mixture to melt at least about 50% by weight of the mechanically agglomerated particles and form essentially spherical powder particles of the melted portion, followed by resolidifying the resulting high temperature treated material.
摘要翻译： 公开了一种用于生产基本上球形的金属粉末颗粒的方法。 该方法包括将包含粉末的混合物机械附聚，其中粉末选自金属，金属合金，金属 - 陶瓷复合材料，陶瓷，并且其中至少一种粉末是相对延性和/或可延展的金属。 所得到的机械附聚粉末颗粒被夹带在载气中，并通过高于混合物最低熔点组分熔点的温度的高温区，以熔化至少约50重量％的机械附聚颗粒并形成 基本上是熔融部分的球形粉末颗粒，然后重新凝固所得到的高温处理材料。
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公开(公告)号：US4783218A
公开(公告)日：1988-11-08
申请号：US904997
申请日：1986-09-08
IPC分类号： B22F1/00
CPC分类号： B22F1/0048
摘要： A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of refractory metal based spherical particles and is essentially free of elliptical shaped material and elongated particles having rounded ends. The process for making the spherical particles involves mechanically reducing the size of a starting material to produce a finer powder which is then entrained in a carrier gas and passed through a high temperature zone at a temperature above the melting point of the finer powder to melt at least about 50% by weight of the powder and form the spherical particles of the melted portion. The powder is then directly solidified.
摘要翻译： 公开了一种粉末材料及其制造方法。 粉末材料基本上由难熔金属基球形颗粒组成，并且基本上不含椭圆形材料和具有圆形端部的细长颗粒。 制造球形颗粒的方法包括机械地减小起始材料的尺寸以产生更细的粉末，然后将其夹带在载气中，并在高于较细粉末的熔点的温度下通过高温区，以在 至少约50重量％的粉末，并形成熔融部分的球形颗粒。 然后将粉末直接固化。
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19.发明授权
公开(公告)号：US4711660A
公开(公告)日：1987-12-08
申请号：US905013
申请日：1986-09-08
IPC分类号： B22F1/00
CPC分类号： B22F1/0048 , Y10S75/956
摘要： A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of precious metal based spherical particles which are essentially free of elliptical shaped material and elongated particles having rounded ends. The material has a particle size of less than about 20 micrometers. The process for making the spherical particles involves mechanically reducing the size of a starting material to produce a finer powder which is then entrained in a carrier gas and passed through a high temperature zone above the melting point of the finer powder to melt at least about 50% by weight of the powder and form spherical particles of the melted portion. The powder is directly solidified.
摘要翻译： 公开了一种粉末材料及其制造方法。 粉末材料基本上由基本上不含椭圆形材料的贵金属基球形颗粒和具有圆形端部的细长颗粒组成。 该材料具有小于约20微米的粒度。 制造球形颗粒的方法包括机械地减小起始材料的尺寸以产生更细的粉末，然后将其夹带在载气中，并通过高于较细粉末熔点的高温区域熔化至少约50 重量％的粉末，并形成熔融部分的球形颗粒。 粉末直接固化。
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公开(公告)号：US4880170A
公开(公告)日：1989-11-14
申请号：US292791
申请日：1989-01-03
摘要： Copper powder with enhanced sinterability and process for producing same is disclosed which comprises fluid energy milling dendritic copper powder particles having a mean particle size of no greater than about 25 micrometers in diameter to produce a deagglomerated cold-worked powder wherein the particles are essentially equiaxed in shape and are of a mean particle size of no greater than about 7 micrometers in diameter.
摘要翻译： 公开了具有增强的可烧结性的铜粉末和其制造方法，其包括流体能量研磨直径为不大于约25微米的平均粒度的树枝状铜粉末颗粒，以产生解散的冷加工粉末，其中颗粒基本上等轴于 并且具有不大于约7微米直径的平均粒度。
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