随着道次的增加，大角度晶界的比例也跟着增加。
As the pass number of pressing increases, the portion of high-angle grain boundaries increased.
在其孔型设计中，合理地分配了成型道次和弯曲角。
The finishing passes and bending angel were reasonably distributed during pass design.
同时可增加压下率，减少轧制道次，提高了轧机的生产率。
At the same time, to increase the rolling reduction, reduce rolling passes and improve the productivity of rolling mill.
对于精轧道次而言，准确预报轧制力对好的产品形状至关重要。
For finishing passes, accurate force prediction is critical to a good product shape.
对复杂断面的异型材，在拉拔时要考虑道次加工率和拉拔速度。
But the drawing of the complicated section special shaped wire must consider processing rate and speed.
基于中厚板的轧制特点，提出了基于灰色关联度的道次修正算法。
Based on the feature of plate rolling process, pass correction based on gray relational grade is put into forward.
并将修正后的钢板温度场应用到后续未轧道次的辊缝修正计算中。
And the corrected plate temperature is used to adjust the gap setup values.
生产线由18架轧机、8道次无扭线材轧机和4道次定径机组成。
The mill, consists of a 18-stands mill, 8-pass non- twisted block mill and a 4-pass sizing mill.
实测了304不锈钢棒线材18道次热连轧过程各道次的表面温度。
The surface temperatures of 304 stainless steel wire and rod during 18 passes hot continuous rolling process was measured.
建立好第1道次轧制模型并数值模拟，对第1道次计算结果进行了分析。
The rolling model of the first pass was built and the result of numerical simulation was analyzed.
并对钼方坯旋锻归圆前道次压缩比的大小对钼产品质量的影响进行了研究。
The influence of magnitude of the reduction ratio on the products quality was studied.
研究了镁合金zk40经等通道挤压1道次和4道次后的超塑性和微观组织。
The superplasticity and microstructure of magnesium alloy ZK40 processed by ECAP for 1 and 4 passes were investigated.
通过单道次压缩热模拟试验，得到了BS 700 MC的真应力-真应变曲线。
Through single pass thermo-simulation compression experiment, the true stress-strain curves were obtained for BS700MC.
采用三维刚塑性有限元法对四种径向精锻变形道次的变形分布进行了数值模拟计算；
The strain distributions of four kinds of radial forging processes have been simulated by rigid-plastic FEM.
采用单道次压缩试验，研究了变形温度和变形速率对SS400钢热变形行为的影响。
Effects of SS400 steel's deformation temperature and strain rates on its deformation behavior was studied using single pass compressing test.
结果表明，铁素体组织随变形道次的增加逐渐演变为等轴状大角度晶界的亚微晶组织；
The results indicate that the initial ferrite microstructure gradually developed into the equiaxed submicrometer grain microstructure with high angle boundaries with increasing the pass number.
得到了导体在不同轧制道次中所需的轧制力以及轧制道次对导体形状和残余应力的影响。
The rolling forces for different rolling passes and the influence of the rolling pass on conductor shape and conductor remainder stress have been obtained.
对304不锈钢棒线材18道次热连轧过程的温度场、应力场及应变场进行了数值模拟。
The temperature field, stress field and strain field of 304 stainless steel wire and rod during 18 passes hot continuous rolling process were calculated.
本试验采用不同包铝方式，不同加热时间，不同轧制道次和道次压下量的安排进行研究。
Various alclad, heating time, rolling pass, reduction is used in the test, and compared surface quality with rate of finished product after rolling.
对主要工艺参数如主轴转速、进给率、旋轮形状、道次变形率、模板形式等作了简要介绍。
Some main processing parameters are briefly introduced, such as speed of main shaft, feed rate, shape of spinning wheel, deformation rate of each step and structure of template.
结果表明，第一和第二道次间出现明显的软化；后面道次间则出现不断增加的加工硬化现象。
The research results show that obvious softening occurs between the first and second pass and the increasing work hardening exists between following passes.
在带材制备过程中，冷拉以后不退火直接轧制，采用大的道次压下量，均有利于提高临界电流。
During preparing silve sheathed tape, rolling after cold drawing without annealing, adopting large draught perpass were both benefit improving Jc.
研究发现，AZ91镁合金经过一个道次的等通道角挤压后，材料中就有大量的超细晶粒出现。
It was found that a great deal of ultra-fine grains appear in AZ91 just after one pass of ECAP.
因此，以降低轧制功率为目标，优化设计道次压下量以取得降低能耗的目的，有着积极的作用和意义。
So it is very meaningful to optimize the assign of reduction, as to reduce power consuming index.
文中考虑了轧件的弹复，保证了下一道次变形历史的延续，从而为真实模拟方矩形连续辊弯成形过程奠定基础。
Workpiece's spring-back is considered in this paper, deformation's history is assured in the next pass, and then square rectangle tube in continue roll forming process lay a foundation.
研究结果表明：2J4合金的磁性能随着ECAP变形道次的增加而逐渐增大，在第3道次变形时，其磁性能增加速度最快。
The result reveals that the magnetic properties of 2J4 alloy become stronger with increasing passes of ECAP, the increase speed of magnetic properties is the largest after 3 passes of ECAP.
本论文开发的软件的主要功能是通过计算轧件在劈分孔型中的变形以及受力来确定轧件每个道次轧后断面形状从而设计出合理的孔型。
This dissertation can gain the size of profiled bar in any pass and design the proper pass by calculating the deformation and rolling-force of the steel in the pass .
设计了加工轨迹，通过实验研究，对成形路径，尤其是第一道次进行了优化，在此基础上加工获得了高径比为0.5的直壁筒形工件。
The vertical wall cylinder part with 0.5 height-diameter ratio can ultimately be formed in the practical manufacture after the forming track, especially the first optimal forming path.
设计了加工轨迹，通过实验研究，对成形路径，尤其是第一道次进行了优化，在此基础上加工获得了高径比为0.5的直壁筒形工件。
The vertical wall cylinder part with 0.5 height-diameter ratio can ultimately be formed in the practical manufacture after the forming track, especially the first optimal forming path.
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