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1. 发明授权

US4604259A Process for making copper-rich metal shapes by powder metallurgy 失效
标题翻译：通过粉末冶金制造富铜金属形状的工艺
公开(公告)号：US4604259A
公开(公告)日：1986-08-05
申请号：US777768
申请日：1985-09-19
申请人： Charles I. Whitman
发明人： Charles I. Whitman
IPC分类号： B22F3/00 , C22C1/04 , B22F7/00
CPC分类号： C22C1/0425 , B22F3/001
摘要： A copper-rich metal shape is produced by forming a coherent forerunner shape consisting essentially of cupreous powder, said powder containing a proportion of copper oxide sufficient for facilitating the obtaining of a high sinter density in sintered porous mass, and in a reducing atmosphere at temperature that will sinter copper present, converting said forerunner shape into a porous sintered mass virtually devoid of copper oxide. Said porous mass can be worked so virtually full density if desired.
摘要翻译：通过形成基本上由铜粉组成的相干前体形状，所述粉末含有足以促进在烧结多孔质量块中获得高烧结密度的一定比例的氧化铜，以及还原气氛中的温度将烧结铜，将所述前身形状转变为几乎不含氧化铜的多孔烧结体。如果需要，可以将所述多孔质量加工成几乎全密度。

2. 发明授权

US4240831A Corrosion-resistant powder-metallurgy stainless steel powders and compacts therefrom 失效
标题翻译：耐腐蚀粉末冶金不锈钢粉末及其压块
公开(公告)号：US4240831A
公开(公告)日：1980-12-23
申请号：US10956
申请日：1979-02-09
申请人： David H. Ro , Erhard Klar , Charles I. Whitman
发明人： David H. Ro , Erhard Klar , Charles I. Whitman
IPC分类号： C22C33/02 , B22F3/00
CPC分类号： C22C33/02 , B01J19/00 , B22F2009/0828 , B22F2999/00
摘要： Disclosed is a process for improving the corrosion resistance of a stainless steel powder or compact thereof wherein said powder is produced by atomizing a melt of metals in an oxidizing environment whereby the resulting stainless steel powder is surface-enriched in silicon oxides. The process comprises adding an effective proportion of modifier metal to said melt prior to said atomization, said modifier metal selected from the group consisting of tin, aluminum, lead, zinc, magnesium, rare earth metals and like metals capable of enrichment about the surface of said resulting atomized stainless steel powder and effective under reductive sintering conditions in the depletion of said silicon oxides about said surface; and sintering said resulting atomized powder or a compact thereof under reducing conditions, said sintered powder or compact thereof being depleted in said silicon oxides and the corrosion resistance of said powder or compact thereof being improved thereby.
摘要翻译：公开了一种改善不锈钢粉末或其压坯的耐腐蚀性的方法，其中所述粉末通过在氧化环境中雾化金属熔体而产生，由此所得不锈钢粉末富含表面富氧化硅。该方法包括在所述雾化之前向所述熔体中加入有效比例的改性金属，所述改性金属选自锡，铝，铅，锌，镁，稀土金属和类似金属，其能够富集在所述产生的雾化的不锈钢粉末在还原烧结条件下有效地在所述表面上消耗所述氧化硅; 并且在还原条件下烧结所得到的雾化粉末或其成型体，所述烧结粉末或其致密体在所述氧化硅中耗尽，并且由此提高所述粉末或其致密度的耐腐蚀性。

3. 发明授权

US4426598A Incandescent lamp leads of dispersion strengthened copper wires 失效
标题翻译：白炽灯引线的分散强化铜线
公开(公告)号：US4426598A
公开(公告)日：1984-01-17
申请号：US344890
申请日：1982-02-02
申请人： Charles I. Whitman
发明人： Charles I. Whitman
IPC分类号： H01K1/22 , H01K1/40 , H01J5/50
CPC分类号： H01K1/40
摘要： Substantially completely deoxidized dispersion strengthened copper leads in incandescent electric lamps.
摘要翻译：基本上完全脱氧的分散强化了铜导线在白炽灯。

4. 发明授权

US4350529A Corrosion-resistant powder-metallurgy stainless steel powders and compacts therefrom 失效
标题翻译：耐腐蚀粉末冶金不锈钢粉末及其压块
公开(公告)号：US4350529A
公开(公告)日：1982-09-21
申请号：US161552
申请日：1980-06-20
申请人： David H. Ro , Erhard Klar , Charles I. Whitman
发明人： David H. Ro , Erhard Klar , Charles I. Whitman
IPC分类号： C22C33/02 , B22F3/00
CPC分类号： C22C33/02 , B22F2009/0828 , B22F2999/00
摘要： A process is disclosed for improving the corrosion resistance of stainless steel powders produced by atomization in an oxidizing atmosphere whereby silicon present in the powder tends to form silicon oxides on the powder surface. The process comprises adding an effective proportion of a modifier metal selected from the group consisting of antimony, arsenic, and bismuth to the melt prior to atomization. The modifier metal addition is effective for decreasing the surface silicon oxides and thereby improves the corrosion resistance.
摘要翻译：公开了一种用于提高在氧化气氛中通过雾化产生的不锈钢粉末的耐腐蚀性的方法，其中存在于粉末中的硅趋于在粉末表面上形成氧化硅。该方法包括在雾化之前向熔体中加入有效比例的选自锑，砷和铋的修饰金属。改性金属添加剂可有效减少表面氧化硅，从而提高耐腐蚀性。

5. 发明授权

US4331478A Corrosion-resistant stainless steel powder and compacts made therefrom 失效
标题翻译：耐腐蚀不锈钢粉末和由其制成的压块
公开(公告)号：US4331478A
公开(公告)日：1982-05-25
申请号：US161551
申请日：1980-06-20
申请人： David H. Ro , Erhard Klar , Charles I. Whitman
发明人： David H. Ro , Erhard Klar , Charles I. Whitman
IPC分类号： C22C33/02 , B22F3/00
CPC分类号： C22C33/0264 , C22C33/02 , C22C33/0257 , B22F2009/0828 , B22F2999/00
摘要： The corrosion resistance of atomized tin-and-carbon containing stainless steel powders and compacts thereof is enhanced by incorporating a modifier metal into the melt prior to atomization. Effective modifier metals disclosed are niobium, titanium, tantalum, molybdenum, and the like.
摘要翻译：通过在雾化之前将改性剂金属掺入到熔体中来增强含有不锈钢和不含碳的不锈钢粉末及其压块的耐腐蚀性。所公开的有效的改性金属是铌，钛，钽，钼等。

6. 发明授权

US4315777A Metal mass adapted for internal oxidation to generate dispersion strengthening 失效
标题翻译：金属质量适于内部氧化产生分散强化
公开(公告)号：US4315777A
公开(公告)日：1982-02-16
申请号：US64371
申请日：1979-08-07
申请人： Anil V. Nadkarni , Warren J. Haws , Charles I. Whitman
发明人： Anil V. Nadkarni , Warren J. Haws , Charles I. Whitman
IPC分类号： B22F3/20 , C22C1/05 , C22C1/10 , C22C9/00 , C22C32/00 , C22C33/02 , B22F3/00
CPC分类号： B22F3/20 , C22C1/1078 , C22C32/00
摘要： This invention relates to dispersion strengthening of metals. A coherent mass comprising an intimate blend of alloy powder and oxidant is formed prior to dispersion strengthening. Said coherent mass is easily formed because the alloy powder is not yet strengthened, and undergoes internal oxidation rapidly because of the intimate blend of alloy powder and oxidant.
摘要翻译：本发明涉及金属的分散强化。在分散强化之前形成包括合金粉末和氧化剂的紧密共混物的连贯质量。由于合金粉末还没有加强，因此容易形成所述连贯质量，并且由于合金粉末和氧化剂的紧密共混而迅速地内部氧化。

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