这段文摘是什么意思？

amunc

The hardness of roll body is an important parameter for its casting.According to the national standard roll must be checked for its hardness along 1~2 line on its body and at least 3 points in one line.There are differences in practical check between the points: normal as ±2 HSD,highest as 8 HSD or even 10 HSD.It is analyzed the factors to affect the homogeneity of,proposed some precautions based on the practical production: improving hot metal fluidity and composition homogeneity,selecting reasonable casti...

阿美

有道词典翻译：辊身的硬度是一个重要的参数。根据国家标准对辊必须检查其硬度1 ~ 2线沿着它的身体和至少3分在一条线上)。在实际检查有差异之间的分:正常HSD±2,最高为8 HSD甚至10 HSD。分析了影响因素的均匀性,提出了一些预防措施,并根据实际生产:提高流动性和热金属成分同质性、选择合理casti…

梁文武

INITIAL: The hardness of roll body is an important parameter for its casting.According to the national standard roll must be checked for its hardness along 1~2 line on its body and at least 3 points in one line.There are differences in practical check between the points: normal as ±2 HSD,highest as 8 HSD or even 10 HSD.It is analyzed the factors to affect the homogeneity of,proposed some precautions based on the practical production: improving hot metal fluidity and composition homogeneity,selecting reasonable casti...

译：从铸造角度来讲，轧辊辊身的硬度是一种重要的参数。根据国标：辊身部位取1-2条母线，每条母线上至少选取3个点。在实际检测过程中，会发现硬度值有所波动，通常在±2 HSD，最高能达到8HSD甚至10HSD。分析这种硬度波动的成因，可以对实际轧辊生产过程进行优化：提高高温铁水流动性，增加成分均匀性，选取合适的铸造参数...


附：从英文字面上来看，并不是由专业人士书写。至于辊身硬度不均匀一说，视轧辊不同材质而定，往往铁辊波动较大，钢辊不然。至于改进方法，选段并未完全。

psluu

铸造轧辊的辊身硬度是轧辊的一个重要技术参数,国标GB1504-2008规定,在轧辊检测中每支轧辊应检测1～2条母线,且每条母线至少应检测3个点。在实际检测中辊身不同点所测的硬度值常常不同,一般浮动值为±2HSD,有时偏差可高达8HSD,甚至10HSD以上。分析了轧辊辊身硬度软硬不均的因素,根据生产实际提出了提高铁水流动性、均匀成分及选用合理的浇铸温度等预防措施,保证铸造轧辊的质量和轧辊辊身硬度稳定。