| 摘要 |
<p>In order to peel the surface coating of machine parts, the parts are dipped into a peeling solution. This aqueous solution contains 20-40 vol% of HNO3, 20-40 vol% of H2O2, and below 10 vol% HF and the solution is kept at the temperature of 20-40 deg.C. The metal of machine parts is the alloy based on one of Mi, Ti and CO, O is the alloy based on more than two of them. The containing material of machine parts is low-carbon steel the composition of surface coating is one of W, Ti, Cr, Co, Ni and Al or one of their carbides, or their combintion.</p> |
