Dynamic iterative ram control during a multi-ram pressing process
The method concerns adjustment of the force exerted by individual rams of a multi-ram press installation. The pressure in the hydraulic fluid actuating a ram is varied to adjust the pressure profile in the mould sand above the pattern to its height contour. The pressure variation in each ram circuit...
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| Format: | Patent |
| Sprache: | eng ; ger |
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| Zusammenfassung: | The method concerns adjustment of the force exerted by individual rams of a multi-ram press installation. The pressure in the hydraulic fluid actuating a ram is varied to adjust the pressure profile in the mould sand above the pattern to its height contour. The pressure variation in each ram circuit - especially in an iterative mode - takes place with the function of oil volume versus pressing time and the compacting rate taken into account. Also claimed is an installation for implementation of the method. |
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