High-density copper infiltrated powder metal components can be given a protective coating by:
A. case hardening
B. Impregnating with oil
C. electroplating
D. shot-peening
2007-01-03 08:56:15 · 4 answers · asked by Ken P 1 in Science & Mathematics ➔ Engineering
I think that you are talking about OILTE which is a sintered bearing material. It is impregnated with oil.
2007-01-03 09:00:25 · answer #1 · answered by hharry_m_uk 4 · 0⤊ 0⤋
Parts made from conventional powder metal processing are often porous. That's not a deficiency--it's a characteristic that is not only controlled, but used advantageously. For example, powder metal parts are often impregnated with oil so they will be self-lubricating--especially useful to make bearings. When parts that have been impregnated with oil are heated through friction, the oil expands and moves to the surface of the part. When the part cools, the oil soaks back into the part through capillary action.
Finally the parts are treated with a proprietary corrosion inhibiting plating that is both environmentally friendly and does not require surface preparation such as resin impregnation or shot peening, which is typical for most powder metallurgy components.
2007-01-03 17:07:36 · answer #2 · answered by CM 2 · 0⤊ 0⤋
Only simple guy would know the answer to this
2007-01-03 16:58:24 · answer #3 · answered by ShoeShef 2 · 0⤊ 0⤋
A would be my guess. Good luck... not my type of engineering!
2007-01-03 16:58:26 · answer #4 · answered by Lowa 5 · 0⤊ 0⤋