tundish maintenance time(This arrangement has made it possible to perform on-line tundish maintenance work on the same floor as the caster operation, eliminate tundish handling by crane and achieve a sharp reduction in tundish maintenance time. 这一方案使得中间包在线维修与连铸机操作能在同一平台上进行,从而免除了用吊车吊运中间包,明显缩短了中间包维修时间。)
residence time distribution(The Residence Time Distribution (RTD) curve shows that at the outlet, a tracer pulse arrives a certain time after the start of the experiment; the signal rises quickly to a peak and then diminishes exponentially to zero. 停留时间分布曲线表明,在试验开始后的某一时刻示踪剂脉冲到达出口处时,脉冲信号首先快速达到峰值,然后按指数曲线衰减至零。)
tap-to-tap time(Use of post-combustion can save up to 5.8 kWh in power consumption and 30 seconds in tap-to-tap time per Nm³ of oxygen. 采用二次燃烧时,吹人每 Nm³ 氧气可节电达5.8 kWh, 减少出钢周期 30s。)
duration of blow(The rate of decarburization as a function of oxygen (available from the lance as well as from the ore) must be known to determine the duration of the blow, so that the heat turns down at the desired carbon level. 脱碳速率作为氧气(包括氧枪供氧和矿石含氧)用量的函数必须为已知条件,以便确定吹炼时间,这样才能在达到预定含碳量时停炉。)
average decarburization time(① Figure 13 shows the change of average decarburization time for each steel grade after revamping of RH facility. 图 13显示了 RH 装置改造后每一钢种平均脱碳时间的变化。②The average decarburization time before upgrade of the RH unit is calculated by the operation data of the year1996. 这台 RH 设备改造前的平均脱碳时间是根据1996 年的操作数据计算的。)
negative strip time(① A more meaningful method of quantifying negative strip is to calculate the negative strip time, NSt. 定量表示负滑脱的一个更有意义方法是计算负滑脱时间 NSt。②The negative strip time (tₙ) is defined as the amount of time during the oscillation cycle when the mold travels in the cast direction at a greater velocity than the cast speed. 负滑脱时间的定义为:在一个振动周期内,结晶器在拉坯方向上以大于拉坯速度运动的时间。)
steel residence time(【技】钢包注流进人中间包到流人结晶器的路程中,钢水在中间包内所经历的时间。单位通常用 min 表示。钢水在中间包内停留的时间越长,钢水中夹杂物上浮的时间就越充分,钢水就越干净。: ① The trial revealed that baffle boards increased the steel residence time and enhanced nonmetallic inclusion floatation. 试验显示:缓冲板提高了钢水停留时间、促进了非金属夹杂物上浮。 ②Baffles, weirs, and dams have long been in use to increase steel residence time and promote inclusion flotation to the tundish slag. 为了延长钢水停留时间、促进夹杂物上浮到中间包渣中,缓冲板、双挡墙已使用了好长时间。)