Direct answer: Before quotation, ECOOSUN reviews the customer drawing or used sample together with the component’s furnace position, critical interfaces, load or workpiece arrangement, operating atmosphere, thermal cycle, failure evidence and inspection requirements. The purpose is to separate confirmed requirements from assumptions and identify the information that controls the casting

Direct answer: A heat treatment fixture can be reproduced from a used sample only after the supplier separates original design features from wear, distortion, repairs and service damage. Record the sample in its installed orientation, establish datums, measure critical locating and support points, compare opposite or repeated features, and combine

Direct answer: A carburizing furnace tray should be selected from the actual carbon-rich atmosphere, tray-metal temperature, workpiece load, support span, cycle frequency and quench or cooling route. The atmosphere affects surface degradation; the load and support pattern affect hot deformation; repeated heating and cooling affect cracking risk. A material grade

Direct answer: Cast and fabricated heat treatment baskets can both be suitable, but they solve different design and maintenance problems. A cast basket can integrate ribs, load paths, locating features and complex open sections into one heat-resistant structure. A fabricated basket can be practical where the geometry is simple, welded

Direct answer: A nonconformance record for a custom heat-resistant casting should identify the affected part or batch, the requirement, the actual condition, containment, disposition, approval and reinspection result. Corrective action is separate: it addresses why the problem occurred and how recurrence will be reduced. Not every deviation has the same