Review these items before releasing a copper crucible or crystallizer drawing for quotation.
Geometry and Interfaces
- Overall diameter, length, wall thickness and bottom geometry.
- Flange, bolt circle, sealing surface and mating equipment dimensions.
- Inlet, outlet, threads, flanges and cooling-channel arrangement.
- Lifting, handling and installation features.
Material and Manufacturing
- Copper grade, material standard and delivery condition.
- Monolithic, forged, cast, welded or fabricated construction.
- Machining datums, critical tolerances and surface finish.
- Weld details and heat-treatment requirements.
Acceptance
- Pressure or leak test requirement and medium.
- UT, PT, RT or other NDT scope.
- Material, dimensional and test reports.
- Cleanliness, preservation and export packing.