| 摘要 |
Method for the production of a thick-walled casting mould from foundry sand, the foundry sand being mixed with a cold-curing, slow setting foundry sand binder based on synthetic resin, preferably a furan resin, following a conventional mixing procedure, after which the foundry sand/foundry sand binder mixture is used to form the green sand mould and the green sand mould is put aside to cure in the ambient air of the casting shop until it has reached a predetermined final strength. Here, the green sand mould is exposed to a high-frequency electromagnetic field, the frequency and field strength of which are sufficient to penetrate the entire wall thickness of the casting mould. The electromagnetic field is allowed to act on the mould until it has reached its final strength. <IMAGE>
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