Highland Refractory’s Foundry Additives are engineered to enhance iron and steel casting efficiency for global buyers and end-users, solving common production pain points. The TZ Series Slag-Coagulating Agent achieves over 95% slag coagulation in 1–2 minutes, simplifying slag removal, while the low-moisture (<0.5%) slag remover prevents porosity by quickly separating molten slag from metal. Our carbon additive line, including high-purity graphite carbon additive with fixed carbon ≥98%, enables precise carbon adjustment for different cast iron grades.
The TZ-M1 Riser Exothermic Covering Agent retains molten metal temperature for 30+ minutes to minimize shrinkage defects, and the TZ-1 Spheroidized Insulation Covering Agent boosts spheroidization stability in ductile iron. These additives reduce scrap rates by 15–20%, improve casting density, and streamline workflows, making them a reliable, cost-effective solution for optimizing foundry operations.
The stainless Tz series slag agglomerator is non-toxic and odorless, free of harmful components.
Sand mold sprue of cast steel and cast iron, sprue of molten mold casting, appearance...
Applicable to gray cast iron, ductile cast iron, and malleable cast iron, appearing...
The stainless Tz series slag agglomerator is non-toxic and odorless, free of harmful components.
Sand mold sprue of cast steel and cast iron, sprue of molten mold casting, appearance...
Applicable to gray cast iron, ductile cast iron, and malleable cast iron, appearing...
Zhengzhou Highland Refractory, established in 1990, stands as a premier producer of Foundry Additives, supported by complete production lines and 1,100 skilled workers. Global buyers often struggle with delayed deliveries for critical additives like TZ Series Slag-Coagulating Agent or slag remover—our streamlined processes solve this, ensuring rapid turnaround even for bulk orders. Whether urgent needs for carbon additive or specialized formulations, we deliver consistent supply without compromising performance, making us the trusted partner for foundries needing timely, reliable solutions.
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International clients frequently face dual concerns: meeting strict quality standards and managing high procurement costs. Our foundry additives, including slag remover and carbon additive, eliminate these worries they hold rigorous certifications aligning with global industrial norms, ensuring seamless integration into diverse foundry workflows. Unlike premium-priced European and American brands, our products offer comparable quality at a competitive rate, reducing operational expenses while guaranteeing consistent results, a key advantage for cost-conscious buyers.
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Many foundries struggle with off-the-shelf additives failing to match unique production demands from specific slag coagulation rates to tailored carbon content adjustments. At Highland Refractory, we specialize in custom formulations: whether modifying TZ Series Slag-Coagulating Agent for high-temperature casting or refining carbon additive for specialized iron grades, we adapt to foreign market needs. Our deep understanding of diverse foundry scenarios ensures every additive, from slag remover to specialized blends, fits perfectly, solving the frustration of ill-suited products.
Contact usTo address "parameter mismatch with furnace environments," our Foundry Additives feature strictly controlled metrics tailored to casting needs. Our graphite carbon additive boasts fixed carbon ≥98%, ash content ≤1.5%, and moisture ≤0.5%—ensuring precise carbon adjustment for cast iron without introducing impurities. The TZ-M1 Riser Exothermic Covering Agent delivers a heat release duration ≥30 minutes, with an exothermic peak of 1200–1300℃, perfectly matching the temperature retention requirements of risers in steel casting. These standardized parameters eliminate performance gaps, letting clients quickly verify if the product aligns with their furnace’s operational specs.
Solving "difficulty adapting to equipment sizes," our Foundry Additives prioritize form and dosage flexibility, as most are supplied as fine powder (80–120 mesh) or granular solids compatible with all common foundry feeding systems (e.g., automatic dosers, manual feeding). For example, the TZ-1 Spheroidized Insulation Covering Agent can be adjusted in dosage (0.8–1.2kg/m²) to fit different sizes of spheroidal graphite iron casting molds, while graphite carbon additive mixes evenly with molten metal regardless of furnace capacity (1–100 tons). This adaptability avoids the "one-dosage-fits-none" issue, ensuring seamless integration with any foundry equipment.
To resolve "uncertainty in matching temperature scenarios," our Foundry Additives are formulated for targeted temperature ranges. The TZ-1 Spheroidized Insulation Covering Agent maintains thermal insulation efficiency ≥85% at 900–1100℃—ideal for spheroidal graphite iron casting, where stable temperatures preserve spheroidization quality. The TZ-M1 Riser Exothermic Covering Agent performs reliably in high-temperature risers (1400–1500℃), preventing premature solidification. Even our graphite carbon additive retains its stability at 1300–1500℃, avoiding burnout during molten metal mixing. This temperature-specific design helps clients instantly match products to their casting process’s heat requirements.
Easing "concerns over imported product quality," our Foundry Additives adhere to global standards and strict quality control. All products, including TZ-M1 Riser Exothermic Covering Agent and TZ-1 Spheroidized Insulation Covering Agent, are certified under ISO 9001:2015 and meet EU REACH regulations. Each batch undergoes third-party testing (e.g., SGS) for key index such as graphite carbon additive’s carbon content and TZ-M1’s exothermic performance with test reports provided for traceability. Raw materials are inspected for impurities before production, ensuring consistent quality across every order and building confidence for international buyers.
Highland Refractory eliminates concerns over opaque processes and unstable quality by standardizing Foundry Additives production. Key steps: raw material inspection (e.g., testing graphite carbon additive’s raw graphite for fixed carbon ≥98% and ash ≤1.5%; verifying TZ-M1 Riser Exothermic Covering Agent’s exothermic components for purity); precise mixing (automated dosing to ensure uniform dispersion of ingredients in TZ-1 Spheroidized Insulation Covering Agent); controlled thermal treatment (low-temperature sintering for additive stability); and finished product testing (measuring TZ-M1’s heat release duration and TZ-1’s insulation efficiency).
Under ISO 9001, we monitor every stage from raw material intake to final packaging. Each batch, including graphite carbon additive, undergoes third-party testing (e.g., SGS) with traceable reports. This rigor guarantees consistent performance across all products, building trust for global buyers.
The stainless Tz series slag agglomerator is non-toxic and odorless, free of harmful components.
Sand mold sprue of cast steel and cast iron, sprue of molten mold casting, appearance...
Applicable to gray cast iron, ductile cast iron, and malleable cast iron, appearing...
