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铁合金是我国大宗的、货值较高的出口商品,每年为国家换取大量外汇。1995年我国铁合金总产量300万吨,其中出口150吨,约占总产量的50％,创汇9亿美元。它主要包括硅铁,锰铁、钼铁等。在冶金行业主要用作还原剂、添加剂等。国内外对铁合金的需求量很大,如硅铁被列为代表整个工业耗电水平的九种主要产品之一,可见其产量之高。由于其冶炼工艺和组成成份比较复杂,所以铁合金是出口商品中易出问题的一类商品。取样、制样、分析是铁合金检验的三步曲。正确的取样、制样是获得准确分析结果的前提。因此,铁合金检验工作质量的高低
Ferroalloy is China’s bulk export commodities with high value, and exchanges a large amount of foreign exchange every year for the country. In 1995, the total output of ferroalloy in China was 3 million tons, of which 150 tons were exported, accounting for about 50% of the total output and earning 900 million U.S. dollars. It mainly includes ferrosilicon, ferromanganese, ferromolybdenum and so on. In the metallurgical industry is mainly used as reducing agents, additives and so on. Domestic and international demand for ferroalloy great, such as ferrosilicon is listed as representing the level of the entire industrial power consumption of one of nine major products, we can see its high yield. Because of its smelting process and composition of the more complex, so ferroalloy export commodities in the export of a class of commodities. Sampling, sample preparation, analysis is a three-step test of ferroalloy. Correct sampling, sample preparation is to obtain accurate analysis of the premise. Therefore, the quality of ferroalloy inspection work