Rolling power cuts and government pleas to save electricity have reduced consumption by about a quarter from the 41m kW average for this time of year. 轮流停电措施以及日本政府恳请民众节约用电的呼吁,已促使该地区用电量较每年同期4100万千瓦的平均水平减少了约四分之一。
A new thermomechanical processing, i.e. "solution treatment, cooling in furnace, rolling at 300 ℃, recrystallization and ageing" was adopted. The average grain size of 01420 alloy treated by this method was 8~ 10 μ m. 采用新的形变热处理工艺,即固溶处理后炉冷到300℃直接轧制、再结晶、人工时效,得到了晶粒度为8~10μm的细晶材料;
Based on the three-factor rolling theory in which Okamoto introduced v_m, the average deformation coefficient, the author derived the criterion and the formula for calculating the change in wall thickness of steel pipe during hollow drawing. 本文根据冈本丰彦引入平均形状变化系数um的三元轧制理论,推导出钢管空拔时壁厚变化的判据和计算式;
Healthy men received rolling manipulation on left gastrocnemius muscle in prone position. Average volume flow ( VF) in popliteal artery was measured by Doppler before and after rolling manipulation. 法施术于健康男性左下肢腓肠肌处,法前后采用彩色超声多普勒诊断系统测量腘动脉平均血流量(VF)。
Comparing the counting value of the rolling torsion with the site actually-measured torsion by the usage of rolling pressure formula with different average units, defining the best counting formula for the rolling pressure of the middle-sized rolling mill. 过使用不同的平均单位压力计算公式,对轧制扭矩的计算值与现场实测扭矩值进行了比较,确定出了中型轧机的最佳轧制压力计算公式。
Compared with the traditional empirical equation values under stable condition, the frictional factor in rolling pipes obviously shows periodic variation, and its average value is bigger than the traditional empirical equation values. 与传统的稳定状态下的经验公式值进行对比,发现摇摆状态下的摩阻系数随时间变化有明显的周期性,而且远远大于传统经验公式计算值。
A rolling multiple model weighted average estimation algorithm is presented for tracking the fast time varying model parameters. 为了跟踪快时变参数,提出了一种滚动多模型加权平均参数估计算法。
The variation of temperatare in the rolling deformation zone is great, usually average temperature gradient being above 200 ℃/ cm. 轧制变形区温度变化较大,平均温度梯度达200℃/cm以上。
After computer simulation of continuous rolling with this model, it is found that this equation is simple and reliable and it not only can calculate the tension, but also forecast the average velocity of workpiece under the action of tension force. 经连轧仿真验证,该计算简洁可靠,不但可以推算张力,还可以计算张力作用下轧件的运动速度。
The rolling pressure of cold rolling steel strip was calculated by the SHUANG-ZHOU empirical equation. Six examples showed that the average value of relative error in the calculation was 16. 78%. 应用双周经验公式计算了冷轧钢带的轧制力,6个实测例子的计算值平均相对误差为16.78%。
The largest residual stress and its exist position in depth will not change much under the same rolling force although the thickness of wall may be different, but the peak value of largest rolling stress and the average rolling stress in inner deep material will decrease. 相同滚压力下,薄壁滚压应力随着薄壁厚度的增加,峰值与深层材料应力的平均水平都有所降低,但是最大应力峰值产生的深度基本保持不变。