IMPROVED PROCESS FOR PRODUCING A ROTARY ANODE AND THE ANODE PRODUCED BY SUCH PROCESS
摘要
The present invention is directed to an improved process for manufacturing a rotary anode for an x-ray tube, said rotary anode comprising a molybdenum support member on which a target layer consisting essentially of tungsten or a tungsten-rhenium alloy is provided by plasma spraying, the improvement comprising: a) preheating the support member to a temperature of from 1150°C to 1600°C, b) placing the support member in a gaseous atmosphere containing hydrogen and having a pressure of from 0.5 to 0.9 bars and wherein hydrogen is present in a molar ratio of hydrogen to tungsten dioxide of from 5:1 to 50:1, and c) plasma spraying the target layer onto the support layer in said gaseous atmosphere. The invention is also directed to the anode produced by the process.
申请公布号
WO2008060775(A2)
申请公布日期
2008.05.22
申请号
WO2007US80286
申请日期
2007.10.03
申请人
H.C. STARCK INC.;HAYWISER, LEAH, F.;SHEKHTER, LEONID, N.