| 摘要 |
1401479 Lead-antimony alloys VARTA AG 21 Sept 1972 [18 Oct 1971] 43773/72 Heading C7A A lead, low-antimony alloy for accumulator grids comprises: and impurities. An addition of 0.025-0.1% Ag may also be made to the alloy where such alloys are used for the positive grids of industrial accumulators and thin positive starter grids. The alloy may be given the required hardness and strength by cooling in air or by water spray from 200 C and ageing at room temperature. |
