What Is The Price Of The Inoculant Cored Wires Today?

Outer shell: 0.4mm-thick cold-rolled steel strip, protecting the core powder and controlling the melting rate to prevent elemental burn-off.
Core material: inoculant powder (e.g., silicon barium, silicon strontium, etc.), typical composition: Si 60–72%, Ba 2–6%, Ca 1–2%, particle size 1–3mm.
Processing: Seamless cold-rolled forming, core powder filling density error ≤ ±2%, linear density approximately 3.1–4.62 g/cm³.

The steel shell prevents oxidation loss from direct dispersion, increasing element recovery rates from 60–70% to >90%.

Eliminate white mouth tendency: Barium (Ba) and calcium (Ca) elements reduce the undercooling of molten iron, transforming graphite morphology from flake to spheroidal, reducing white mouth rate by 50% in thin-walled castings (<10 mm).
Refining the matrix structure: Increasing the number of eutectic clusters enhances pearlite stability, resulting in a 15% increase in tensile strength of castings.

Precise control of quantity‌: The feeding machine injects into the deep part of the molten iron at a speed of 100–150 m/min, with the inoculant added at 1.0–1.8% of the molten iron weight, avoiding local concentration deviations‌.
Delaying degradation‌: The steel shell blocks oxidation, extending the effective inoculation time to 8 minutes (traditional methods only 3–5 minutes)‌.

Dust-free operation‌: Closed wire feeding reduces dust dispersion by 85%, improving the workshop environment‌.
Cost reduction and efficiency improvement‌: Element recovery rate >90%, reducing inoculation cost per ton of iron by 40%‌.

Used in conjunction with magnesium alloy core wires to balance carbon-sulfur ratios, achieving a stable spheroidization rate of over 90%.
Replaces the injection method, reducing smoke and dust pollution by 70%.

Refines graphite flakes, improves machining performance, suitable for precision components such as automotive cylinder blocks and machine tool bases.
Addresses white mouth defects (internal hard spots) in thick-section castings.

✅ Performance innovation: Eliminates white mouth, refines microstructure, and improves casting mechanical properties by over 15%;
✅ Cost optimization: Element recovery rate >90%, reducing ton-iron cost by 40%;
✅ Green manufacturing: Dust-free operation drives sustainable transformation in the casting industry.
Its technical maturity has made it a standard process for high-end castings such as automotive engine cylinder blocks and hydraulic valve blocks.