Copper Components for Electron Beam Melting Furnaces

Application Scope

Winworth manufactures drawing-based water-cooled copper components for electron beam (EB) melting furnaces operating in vacuum. Depending on the furnace configuration, the ordered scope may include a cold hearth body, melt and refining pools, dams, transition channels, pour lip, a separate withdrawal mold or crucible, connection blocks, supports, and cooling parts.

The cold hearth and the withdrawal mold perform different functions and remain separate product identities. A cold hearth manages the drawing-defined melt path and transfer; the mold or crucible provides the final solidification boundary. Neither should be relabeled as a VAR crystallizer or ESR crucible.

Melt Path, Beam Access, and Vacuum Interfaces

Provide feed arrangement, melt-entry zone, pool and dam geometry, flow direction, transition channel, pour-lip profile and position, receiving-mold relationship, beam scanning and access envelope supplied by the buyer, vacuum-chamber clearances, shields, support points, seals, withdrawal arrangement, lifting, removal, and maintenance access.

Cooling documentation should identify every supply and return circuit, machined or drilled passages, internal partitions, connection blocks, pipes, plugs, closures and joints, flow direction, circuit separation, monitored locations, and the specified pressure or leakage test. State whether pipes, manifolds, supports, shields, seals, or chamber hardware are included.

Material, Manufacturing, and Inspection

Copper grade and condition, blank route, machining, drilling, forming, fabrication, welding or other joining, closure construction, final cleaning, and surface requirements follow the approved furnace drawing. No C-shaped, multi-pool, drip-melt, withdrawal, or gun arrangement is assumed unless the buyer specifies it.

Inspection may include material verification, pool, dam, channel and pour-lip geometry, mold cavity, flatness and alignment, passage mapping, connections, joints and closures, specified NDT, pressure or leakage testing, circuit separation, vacuum-compatible cleanliness, and fit against supplied chamber data. No refining efficiency, inclusion removal, purity, throughput, vacuum level, or service life is promised.

RFQ Information

Provide the EB furnace and component drawings, feed and melt-path arrangement, cold-hearth or mold boundary, receiving-mold relationship, copper specification, cooling map, chamber and support interfaces, beam-access restrictions supplied by the buyer, tolerances, cleanliness, NDT and test procedures, quantity, records, packaging, and destination.