| 摘要 |
<p>Designed for tools used in pressing, shaping or spark erosion, the basic metal component is provided with a shell-shaped surface to allow a filling of conductive C or Al2O3 fibres, together with bulking and protective agents with silicone rubber and a duroplastic resin to give a composite tool to be cast and shaped to close tolerances at greater speed and lower cost than current methods.</p> |
