论文部分内容阅读
一 緒 言球墨鑄鉄有鑄鋼的优良性能,有普通鑄鉄的經济价直,所以在机器制造业中已广泛地并正推广应用。但球墨鑄鉄对化学成分的要求比較严格,因而,需要及时的化驗出結果,作为下一炉配料的依据。錳及硅的化学分析是比較快的,錳約3～4分鐘,硅約10分鐘可得出結果,但鎂的分析用重量法时間較长,而現在一般工厂用的比色法,由于手續煩杂,也需3小时左右才能报出結果。在文献中用光譜法进行分析的資料很少,而且也只是用弧光光源单独测定其中鎂的含量,本厂为节約人力、物力及时配合車間生产,故試用火花光源一次攝譜,同时測定三个元素。現将試驗經过簡述如下:
I. INTRODUCTION Nodular cast iron has the excellent properties of cast steel, with the ordinary cast iron 经 economic price straight, so in the machinery manufacturing industry has been widely and is being promoted. However, the ductile castings of the chemical composition of the more stringent requirements, therefore, need to test results in time as the basis for the next furnace ingredients. Manganese and silicon chemical analysis is relatively fast, manganese about 3 to 4 minutes, silicon about 10 minutes to get the result, but the magnesium for a long time with the gravimetric analysis, and now the general factory colorimetric method, due to Procedures complicated, but also take about 3 hours to report the results. In the literature using the spectroscopy analysis of the information is very small, but only with a single light source to determine the content of magnesium, the factory to save manpower and material resources in a timely manner with the workshop production, it is a trial of spark light spectrum, while the determination of three Elements. The test is now outlined as follows: