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公开(公告)号：US4885028A
公开(公告)日：1989-12-05
申请号：US253173
申请日：1988-10-03
CPC分类号： B22F1/0096 , C22C1/045 , Y10S75/956
摘要： A process for forming particulate tungsten heavy alloys from agglomerated material containing the individual metals by using a high temperature zone is improved by retaining the material in the high temperature zone for a time sufficient to at least partially melt the metals that are alloying with tungsten while maintaining the temperature of those metals below the boiling point of the lowest boiling metal in the alloying component.
摘要翻译： 通过将材料保持在高温区域中，将材料保持在高温区域中足以至少部分地熔化与钨合金化的金属同时保持 这些金属的温度低于合金组分中最低沸点金属的沸点。
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公开(公告)号：US4755353A
公开(公告)日：1988-07-05
申请号：US33706
申请日：1987-04-03
CPC分类号： C23C4/185 , B22F1/0007 , B22F1/0096 , B22F2998/00 , Y10T428/12431
摘要： A process is disclosed for producing discontinuous metal foils. The process involves entraining metal powder particles in a carrier gas and passing the powder particles through a high temperature zone at a temperature above the melting point of the powder particles to melt at least about 50% by weight of the powder particles and thereafter resolidifying the resulting high temperature treated material by impacting the material against a substrate to form the foils.
摘要翻译： 公开了用于生产不连续金属箔的方法。 该方法包括将载体气体中的金属粉末颗粒夹带并使粉末颗粒在高于粉末颗粒的熔点的温度下通过高温区域，以熔化至少约50重量％的粉末颗粒，然后将所得 通过将材料冲击衬底以形成箔来进行高温处理的材料。
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公开(公告)号：US4743297A
公开(公告)日：1988-05-10
申请号：US33708
申请日：1987-04-03
CPC分类号： B22F1/0085 , B22F1/0007 , B22F2998/00 , Y10S75/954
摘要： A process is disclosed for producing metal flakes. The process involves entraining the metal powder particles in a carrier gas and passing the powder particles through a high temperature zone at a temperature above the melting point of the powder particles to melt at least about 50% of the powder particles, resolidifying the resulting high temperature treated material by impacting the material against a substrate, and thereafter contacting the material with a non-oxidizing gas which can be nitrogen, argon, hydrogen, helium or combinations of these to remove the material from the substrate in the form of flakes.
摘要翻译： 公开了一种用于生产金属薄片的方法。 该方法包括将金属粉末颗粒夹带在载气中，并使粉末颗粒在高于粉末颗粒熔点的温度下通过高温区域，以熔化至少约50％的粉末颗粒，将所得到的高温 然后将材料与非氧化性气体接触，所述非氧化性气体可以是氮气，氩气，氢气，氦气或这些材料的组合，以从薄片形式从衬底去除材料。
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公开(公告)号：US4670047A
公开(公告)日：1987-06-02
申请号：US906370
申请日：1986-09-12
申请人： Nelson E. Kopatz , Lori S. Pruyne , Howard H. Shaw
发明人： Nelson E. Kopatz , Lori S. Pruyne , Howard H. Shaw
CPC分类号： B22F1/0048 , B22F2998/10
摘要： A process is disclosed for producing finely divided spherical metal powders. The process comprises forming a coating of a surface active agent which can be of the nonionic or anionic type on the surfaces of the particles of a metal powder, feeding the coated particles and a carrier gas into a high temperature zone and maintaining the particles in the zone for a sufficient time to melt at least about 50% by weight of the particles and to form droplets therefrom, and cooling the droplets to form metal particles having essentially a spherical shape with the majority of the particles having a size less than about 50 micrometers.
摘要翻译： 公开了一种用于生产精细分散的球形金属粉末的方法。 该方法包括在金属粉末颗粒的表面上形成可以是非离子或阴离子型表面活性剂的涂层，将涂覆的颗粒和载气进料到高温区并将颗粒保持在 区域足以熔化至少约50重量％的颗粒并从其形成液滴，并冷却液滴以形成具有基本上为球形的金属颗粒，其中大部分颗粒的尺寸小于约50微米 。
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