ELPHA Formwork applies a full-chain production and quality control system from scrap preparation to traceable release. Quality is embedded from material stage to shipment, ensuring alloy consistency, dimensional stability, structural reliability, surface quality, and delivery predictability.

ELPHA Formwork performs batch-based inspection of billet chemical composition, dimensions, surface, and internal structure. Acceptance limits: diameter ±1 mm, length +10 mm, straightness 2 mm/m, end squareness ≤5 mm. For 6061 alloy, tighter internal ranges apply for Si, Mg, Fe, Cu, Zn, Ti, Cr. Each billet has alloy-grade and furnace-number ID, conformity label, tail-end slices, and furnace-by-furnace report, ensuring traceability before production release. 

Quality control begins before melting. In the crushing stage, scrap must first be checked and confirmed against customer records, and weighing scales used for output control are calibrated every shift. Non-aluminum contaminants such as wood, steel straps, wire rope, large iron parts, cement residue, and wet material are required to be removed or flagged before entering the system.

In melting, ELPHA Formwork uses process controls for metallurgical consistency, not experience alone. Raw materials must be clean, dry, low-impurity, and composition-confirmed. The system uses recycled 6061 with controlled alloy additions. Melting at 700°C+, followed by electromagnetic stirring and iron removal at ~680°C. After alloy additions, samples undergo spectrometric analysis; if out of spec, adjustment is mandatory before refining. 

After chemistry confirmation, refining is done at 700°C+ using high-purity argon. The lance moves across the melt to avoid dead zones, improving degassing and inclusion control. Slag is removed, covering flux applied, followed by a defined holding period before casting. This ensures melt cleanliness, chemistry stability, and casting readiness.

ELPHA Formwork's training ensures closed-loop chemistry control. Sampling occurs only after alloy additions and full homogenization. Samples must be correctly prepared, preheated if needed, and analyzed via spectrometry. If results miss target composition, the melt must be adjusted before proceeding.

Billet release includes traceable marking and acceptance practices. Each billet carries alloy and furnace information; finished bundles show furnace number, alloy grade, cut length, and key chemistry data. Cutting standards depend on billet diameter, with head/tail trimming requirements and controlled length ranges. This links melting, casting, inspection, and release.