Refrigerant pipes cool the furnace door seal to preserve vacuum airtightness, reduce seal deterioration, and simplify pipe attachment.
A closable side opening and detachable protective cover let molten metal enter an arc furnace safely while limiting slag buildup and cleaning delays.
A stepped door support overlaps the lower door end to prevent slag leakage, improving heat efficiency and metal recovery rates.
Composite door bodies with high heat-conductive materials dissipate thermal energy to minimize deformation and reduce heat losses during steel-making.
Segmented insulation and outer heating prevent binder condensation, reducing contamination and power consumption in sintering.
Segmented metal slide plates with movable joints and thermal insulation bodies compensate for furnace temperature gradients.