Reliable quality that protects your production line

From incoming material to final release, our full-process quality system keeps the performance and quality of every molybdenum electrode batch stable.

WeiBeam · Electrode solutions for high-temperature melting

01
Incoming inspection
High-purity molybdenum base material is checked for composition and quality at the source.
02
Process control
Key checkpoints at each production step control structural density and uniformity.
03
Final release
Finished parts are released only after dimensional, visual and performance inspection, with batch traceability.
04
Full traceability
Standardized production and inspection keep performance consistent across batches.

Finished molybdenum electrodes — Every electrode is strictly inspectedDense structure · accurate dimensions · batch consistency

Inspection items and acceptance criteria

Electrodes are inspected batch by batch to YS/T 1312-2019 Molybdenum Electrodes and the mutual technical agreement. Crucibles, stream mouths, needles and other molybdenum parts are accepted to the relevant material standard or the technical agreement. Routine inspection covers chemical composition, density, hardness, dimensional tolerances, surface quality and internal defects. Molybdenum content is the core composition indicator, alongside Fe, Ni, C and O impurities. Density and hardness reflect the soundness of the sintered or forged structure; tolerances and straightness affect assembly and electrode clamping; cracks, pits and laminations are visually checked and recorded piece by piece before release. Records are archived by batch and can be supplied on request.

Batch traceability and retained samples

Each incoming lot records furnace number, batch and mill certificate. Production records cover pressing, sintering, forging and machining parameters, and finished parts carry a batch number to form a chain from raw material to finished product. Samples are retained for the agreed period to support re-inspection and failure analysis. If oxidation, cracking or abnormal consumption occurs on site, the batch record helps trace process parameters and raw materials while the user reviews furnace atmosphere, assembly and current load.

· Incoming material: chemical verification and visual check; failed lots isolated
· Process control: pressing density, sintering curve and forging reduction recorded per batch
· Final release: dimensions, density, hardness and surface quality inspected; report supplied with shipment
· After-sales traceability: process records retrieved by batch number to support failure analysis

Which standards apply?

Electrodes use YS/T 1312-2019 Molybdenum Electrodes as the primary standard. Molybdenum rods, plate and discs are accepted to ASTM B387 / GB/T 17792 and ASTM B386 / GB/T 3876 respectively. Crucibles, stream mouths, needles and other special shapes follow the mutual technical agreement. For special sizes not covered by a standard, drawing tolerances, the technical agreement and factory inspection records govern acceptance.

Product category	Standard	Routine inspection	Delivery documents
Electrodes for glass furnaces, ceramic fiber, fiberglass tanks and rare-earth electrolysis	YS/T 1312-2019 and technical agreement	Composition (Mo content and Si, Al, Fe, C, O impurities), density, hardness, tolerances, straightness, surface and internal defects	Mill certificate and batch inspection report
Molybdenum rods and shafts	ASTM B387 / GB/T 17792	Composition, density, diameter and length tolerances, straightness, surface	Material certificate and dimensional records
Molybdenum plate and discs	ASTM B386 / GB/T 3876	Composition, density, thickness and flatness, surface defects, ultrasonic inspection	Material certificate, ultrasonic and dimensional records
Crucibles, stream mouths, needles and threaded parts	Mutual technical agreement	Material, density, dimensions and fit tolerances, assembly surfaces, ultrasonic inspection	Inspection records defined in the technical agreement

Inspection data is archived by batch, and material certificates and inspection records can be supplied on request. Acceptance items for special sizes follow the mutual technical agreement.