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我厂研制的双金属缸套的内套使用的是高铬耐磨铸铁 ,铬的质量分数一般为 1 6%～ 1 8% ,在分析磷含量时考虑铬对测定的影响 ,一般采用高氯酸溶样 ,盐酸挥发铬以消除铬的干扰 ,但这种方法试样处理时间长 ,不易掌握 ,日常分析中发现铬对磷有时仍有干扰。为了车间生产的需要 ,试验
The bimetal cylinder liner developed by our factory is made of high chromium wear-resistant cast iron. The mass fraction of chromium is generally 16% ~ 18%. When analyzing the phosphorus content, the influence of chromium on the determination is generally considered. Acid sample, hydrochloric acid volatile chromium to eliminate the interference of chromium, but this method sample processing time is long, not easy to grasp, routine analysis found that phosphorus is sometimes still interference. For workshop production needs, test