| 摘要 |
<p>The strip or sheet is made on a belt casting machine, and contains 0.5-3.0% Mn, together with >=1 of is not >0.5% Zr, 0.1-1.% Fe, 0.1-0.6% Si, is not >0.3% Cu, is not >3% Mg, and is not >0.2% Cr. The strip or sheet is heated 5 mins. to 24 hrs. at 300-454 degrees C. The heat may be carried out (1) after casting and before rolling; (2) after hot rolling; (3) after casting and cold rolling; or (4) after hot- and cold-rolling. A fine grain size is obtd. in the annealed condition which prevents the formation of "orange peel" effects in deep drawing; but a high yield point is reached after further cold work.</p> |
