| 摘要 |
1496951 Lead base alloy GOULD Inc 14 March 1975 [11 Oct 1974] 10661/75 Addition to 1439888 Heading C7A A lead base alloy containing Ca above 0À1-0À2 Sn 0À01-0À5 Pb Balance plus impurities, is suitable for use as grids in lead-acid storage cells and batteries. The grids may be cast at 400-455 ‹C into heated (175-235‹C) moulds, with low dross formation, at a rate of up to 10/15 castings/minute, to produce relatively thin grids, about 1-5 mm thick which are sufficiently strong for use as negative grids with good corrosion resistance. |
