At the roughing stands of hot tandem rolling, short stroke control was used for increasing yield and decreasing width deviation. 为了提高热轧带钢的成材率、减少板坯头尾部的失宽量,在热连轧粗轧机组中采用了短行程控制。
Determined by the average sample yield was obtained 97.96 %, relative standard deviation ( RSD ) was 2.73 %. 由本方法测定所得平均加样收率为97.96%,相对标准偏差(RSD)为2.73%。
The unstable mode always produces a lower neutron yield while the stable mode produces a higher one, hence the mean neutron yield is low with large shot to shot deviation. 不稳定模式的中子产额较低,而稳定模式的中子产额则较高,因而引起平均中子产额下降,且分散性增大。
The local strength mismatches make the high stress triaxiality and plastic strain distributions mainly occur in the material with lower yield stress, and lead to crack growth paths deviation and different ductile crack growth resistances. 偏离的原因是材料局部强度失配引起的高塑性应变和三轴应力度主要发生在软材料一侧,从而促使裂纹扩展路径的偏离,并进而影响材料的局部裂纹扩展阻力。