【摘 要】
：
本文通过对低碳高硫易切削钢的连铸坯进行了成分化验和低倍酸侵试验，研究元素C、Si、Mn、P、S的成分偏析特征并分析其形成原因。结果表明，连铸坯的C、Si、Mn、P、S的偏析度均在0.9~1.1 之间，S、P 元素存在中心负偏析，低倍检测发现连铸坯存在中心疏松。分析认为，中心疏松是导致中心元素负偏析的主要原因。
【机 构】
：
宣化钢铁集团有限责任公司,河北张家口 075100
论文部分内容阅读
本文通过对低碳高硫易切削钢的连铸坯进行了成分化验和低倍酸侵试验，研究元素C、Si、Mn、P、S的成分偏析特征并分析其形成原因。结果表明，连铸坯的C、Si、Mn、P、S的偏析度均在0.9~1.1 之间，S、P 元素存在中心负偏析，低倍检测发现连铸坯存在中心疏松。分析认为，中心疏松是导致中心元素负偏析的主要原因。
其他文献
Continuous inkjet (CIJ) technology has the advantage of much higher speed, better reliability, and wider ink and substrate latitude compared to drop-on-demand (DOD) inkjet technology. KODAK Stream Ink
MEMS Industry is growing double digits now and will continue its fast growth for the next decade.Bosch is one of the earliest pioneers of the MEMS technology, and invented the famous Bosch Process.MEM
Plasma, eYCited with microwave energy, has Very interesting properties which are in direct correlation with the eYCitation frequency. This is due to the reachable high electron density, which itself h
This presentation introduces a new IC architecture and design technique which can be widely used for MEMS based sensors and wireless applications. The presented digital predistortion technique can ach
After many years developing, MEMS is getting blooming in consumer filed and become one of the driving force of new applications, especially Internet of Things since 2009. As the smart nodes on the IOT
There is a big boost in demand of MEMS in the last two years driven by their use in consumer applications such as smart phones, tablets and gaming consoles. Yole Developpment predicts about 14％compoun
The Medical Research Council and the UK Clinical Research Collaboration awarded a ＃4 million grant to the consortium of academic and industrial researchers to improve seYUal health through the use of
The "Hands-on access fab" is a 4" and 6" facility that companies can easily access and utilize for their prototyping. The fab is shared with other users and managed with best efforts. The fab will not
本文以GCr15 钢的碳化物液析、碳化物带状级别为突破口，结合现场工艺条件，调整轴承钢加热工艺，完善轴承钢的加热制度，并对调整完善后的效果进行对比分析。确定较为合理的轴承钢加热工艺参数。
通过40t EBT炉热装铁水生产连铸轴承钢试验，研究了热装铁水量对生产连铸轴承钢冶炼效果的影响。结果表明：随着热装铁水量的增加，电耗随之降低；存在一个适合的热装铁水加入量，此时的冶炼时间最短；热装铁水生产的连铸轴承钢Cu含量降低，As变化不明显。