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为提高普通灰铸铁散热器的质量,在普通铸铁中进行了添加微量高品位的稀土硅铁合金试验,通过实验室试验和批量生产,不但铸件质量明显改善,成品率也提高了10％。一、试验过程熔化设备为非标准的2.5t/h的热风冲天炉,用双铂铑热电偶测铁水温度。出铁温度为1380～1420℃,浇注温度为1340～1360℃。使用18号铸铁和包钢生产的1号(RE33)高品位稀土硅铁合金。试验按配料相同,其它
In order to improve the quality of ordinary gray cast iron radiators, a trace amount of high-grade rare earth ferrosilicon alloy test was carried out in ordinary cast iron. Through laboratory tests and mass production, not only the quality of castings has been remarkably improved, but the yield of finished castings has also increased by 10%. First, the test process Melting equipment for non-standard 2.5t / h hot cupola, with double platinum and rhodium thermocouple temperature of molten iron. Tapping temperature of 1380 ~ 1420 ℃, pouring temperature of 1340 ~ 1360 ℃. No. 1 (RE33) high grade rare earth ferrosilicon alloy produced using 18 # cast iron and Baotou Steel. The same test ingredients, others