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Capital’s one-shot crucible system provides the quality conscious investment caster with considerable improvements in terms of product quality.
Since the liner is only used once, there is no risk of cross-contamination of alloys, and inclusions are drastically reduced which will directly reduce rework and scrap costs.
The complete system comprises a fused silica or alumina, single-use, slip cast One-Shot Liner that is placed in a multi-use outer vibrocast alumina crucible (back-up/host crucible).
Capital produces thousands of one-shot liners and corresponding back-up crucibles in a wide range of sizes at a state-of-the-art facility in the Czech Republic. If we don’t currently manufacture the size liner/back-up you need for your process, Capital can create new sizes to meet your needs.
Two Main Material Composition
| QUALITY | WT. % | WT. % | WT. % | WT. % | WT. % | PHYSICAL | PHYSICAL |
| Al2O3 | SiO2 | Ca/MgO | Fe2O3 | Na/K2O | BULK DENSITY / g cm-3 | APPARENT POROSITY / % | |
| Silica FS70S | 31 | 67 | 0.2 | 0.3 | 0.9 | 2.15 | 17.0 |
| Alumina AL68S | 68 | 31 | <0.1 | <0.1 | 0.1 | 2.59 | 18.0 |
While Capital primarily uses the two materials in the chart above, we are open to discuss developing new materials to better suit your process needs.
