公开(公告)号：US06866886B2

公开(公告)日：2005-03-15

申请号：US10406766

申请日：2003-04-02

申请人： Shawn D. Knowles ,  David J. Senor ,  Steven V. Forbes ,  Roger N. Johnson ,  Glenn W. Hollenberg

发明人： Shawn D. Knowles ,  David J. Senor ,  Steven V. Forbes ,  Roger N. Johnson ,  Glenn W. Hollenberg

IPC分类号： C23C10/04 ,  C23C10/06 ,  C23C14/04 ,  C23C14/24 ,  C23C14/26 ,  C23C14/58 ,  B05D7/22

CPC分类号： C23C14/26 ,  C23C10/06 ,  C23C14/046 ,  C23C14/24 ,  C23C14/5893 ,  Y10S118/10 ,  Y10S118/13

摘要： A method for forming a diffusion coating on the interior of surface of a hollow object wherein a filament, extending through a hollow object and adjacent to the interior surface of the object, is provided, with a coating material, in a vacuum. An electrical current is then applied to the filament to resistively heat the filament to a temperature sufficient to transfer the coating material from the filament to the interior surface of the object. The filament is electrically isolated from the object while the filament is being resistively heated. Preferably, the filament is provided as a tungsten filament or molybdenum filament. Preferably, the coating materials are selected from the group consisting of Ag, Al, As, Au, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Dy, Er, Eu, Fe, Ga, Ge, Hg, In, K, Li, Mg, Mn, Na, Ni P, Pb, Pd, Pr, S, Sb, Sc, Se, Si, Sn, Sr, Te, Tl, Y, Yb, Zn, and combinations thereof. The invention additionally allows for the formation of nitrides, hydrides, or carbides of all the possible coating materials, where such compounds exist, by providing a partial pressure of nitrogen, hydrogen, hydrocarbons, or combination thereof, within the vacuum.

摘要翻译： 一种在中空物体的表面内部形成扩散涂层的方法，其中通过中空物体延伸并与物体的内表面相邻的细丝在真空中被提供有涂层材料。 然后将电流施加到灯丝​​上以将灯丝电阻加热到足以将涂层材料从灯丝转移到物体的内表面的温度。 当灯丝被电阻加热时，灯丝与物体电隔离。 优选地，丝被提供为钨丝或钼丝。 优选地，涂层材料选自Ag，Al，As，Au，Ba，Be，Bi，Ca，Cd，Co，Cr，Cu，Dy，Er，Eu，Fe，Ga，Ge，Hg， In，K，Li，Mg，Mn，Na，Ni P，Pb，Pd，Pr，S，Sb，Sc，Se，Si，Sn，Sr，Te，Tl，Y，Yb，Zn及其组合。 本发明还允许通过在真空中提供氮，氢，烃或其组合的分压，形成所有可能的涂覆材料的氮化物，氢化物或碳化物，其中存在这些化合物。