| 摘要 |
<p>NL-1627 INVENTOR: Enno H. Page 5055 Jamieson Drive Toledo, Ohio 43613 TITLE: EXPENDABLE CORES FOR DIE CASTING Coated sand cores containing a boronated aluminum phosphate binding agent are used in the production of die castings having undercut regions because of the favorable combination of shakeout properties, resistance to washout, and resistance to surface penetration.</p> |
