| 摘要 |
A composite strip, for use in the manufacture of bearings, is made by coating a steel backing strip with a Cu alloy containing 5-25% Pb, 0-20% Zn and/or Sn and 0-0.6% Fe, heating the coated strip, casting a layer of a Pb alloy containing 2-10% In, 0-0.5% Ag, 0-0.5% Sb and optionally 0.001-0.25% Te on to the Cu-alloy coating and cooling the composite strip in a selected short time so that controlled transfer of In from the layer to the coating and of Cu from the coating to the layer takes place. The Pb-In layer then contains 0.1-3% Cu and the Cu-Pb coating contains approximately 0.1% In. |
