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500kW1吨中频电炉用于铸铁熔炼已显示很多优越性，这种熔炼炉具有冷料满功率启动，升温快，熔炼时间短，铁水搅拌平稳等特性。它生产的高强度铸铁件已满足日本丰田等公司认可，它熔炼的高温（1530～1550℃）、低硫（S≤0．02％）铁水所生产的球铁作符合ISO国际标准，获得日本、意大利的大公司免检．
500kW 1 ton IF electric furnace for cast iron smelting has shown many advantages, this smelting furnace with cold full power start, fast heating, melting time is short, hot metal stirring smooth and so on. Its high-strength cast iron has been approved by Japan’s Toyota and other companies. Its ductile iron produced by melting high-temperature (1530-1550 ℃) and low-sulfur (S≤0.02%) hot metal meets the ISO international standards and obtained Japan Large Italian companies exempt from inspection.