| 摘要 |
<p>The present invention relates to a passive state treatment for fine metal powder containing aluminum, aluminum alloy, titanium, titanium alloy, bronze, bronze alloy, silver, silver alloy, as well as easily surface-oxidized magnesium and magnesium alloy. The method for treating surface of easily oxidized metal powder includes: a step of heating a passive state treatment solution at the temperature of passive state treatment; and a step of forming a passive state treatment layer on a surface through an reaction to the passive state treatment solution by making metal powder submerge in the passive state treatment solution and stirring the passive state treatment solution for 1-30 minutes or less than one minute.</p> |
