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甘肃主要火电厂,拥有钢球磨煤机四十多台,年耗钢球,钢衬瓦,锤头三千余吨,以钢球消耗最多,磨一吨煤粉平均耗球500～800克。有的电厂高达1194克。为了探讨其磨损问题,于一九七七年开始试验研究。一、综合选材: 经过试验研究,证明采用45Mn_2钢是制造耐磨件的材料,与过去使用的高碳,高合金的钢种相比,由于45Mn_2钢属中碳低合金冶炼较易,锰在钢中有一定的固溶度,形成锰铁
The main thermal power plant in Gansu, with more than 40 ball mill coal mills, annual consumption of steel balls, steel lining tile, more than 3,000 tons of hammer to steel balls consume the most, grinding a ton of coal powder consumes an average of 500 to 800 grams. Some power plants up to 1194 grams. In order to explore its wear and tear problems, a pilot study was started in 1977. First, the comprehensive selection: After the pilot study showed that the use of 45Mn2 steel wear-resistant parts of the material, compared with the past use of high-carbon, high alloy steel, 45Mn2 steel due to low-carbon smelting easier, manganese in Steel has a certain degree of solid solubility, the formation of ferromanganese