One-Shot Liners

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 mass-produce 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. % 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.

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