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以不同的孕育工艺浇注了球铁反白口试块,通过金相观察分析了石墨球数与反白口组织的关系,指出石墨球数少是形成球铁反白口的直接原因,强化孕育增加石墨球数可有效地防止或减少反白口生成。此结果在生产中也得到了证实。
The test results show that the number of graphite balls is the direct reason for the formation of ductile iron and whitening, and the enhancement of gestation Graphite ball number can effectively prevent or reduce anti-white generation. This result has also been confirmed in production.