Section shrinkage

This study result widens the processing limit of cross wedge rolling and is of momentous significance to develop heavy section shrinkage products of cross wedge rolling .

该研究拓宽了楔横轧加工界限，对大断面收缩率产品的开发有重要意义。

The area of inductile , namely crack-sensitive spot , is found by the curve of hot ductility temperature and cross section shrinkage ratio .

通过绘制变形温度与断面收缩率的关系曲线，找出了该钢的低塑性温度区，即裂纹敏感点。

Analysis on rolling stability of heavy section shrinkage cross wedge rolling

大断面收缩率楔横轧稳定轧制问题分析

Forming principle of heavy section shrinkage cross wedge rolling by single wedge

楔横轧一次楔大断面收缩率成形机理

Experimental study on internal defect of heavy section shrinkage workpiece under one cross wedge rolling

大断面收缩率一次楔入轧件心部缺陷的实验研究

Dependence of Z-direction Section Shrinkage on Plastic Inclusion Level

Z向断面收缩率与塑性夹杂物级别的关系

For the sake of the axis accessory 's figuration , the experiment of second wedge heavy section shrinkage was carried out .

为了成形大断面收缩率轴类零件，进行了楔横轧二次楔入试验。

Summarizes the laws of the variation related to workpiece quality in the different process parameters ( broadening angle , forming angle to the section shrinkage ) .

总结了在不同的工艺参数（展宽角、成形角、断面收缩率）时，工件相关的变量的变化规律。

The results show that the pressure loss in the generating process is mainly resulted from the section shrinkage . The lost pressure is about 49 percent of the final kinetic energy of hyperpressure waterjet .

结果显示，在超高压水射流形成过程中，压力损失主要是在水流从高压管道进入高压喷嘴时由于流道发生断面收缩而造成的，压力损失大约为最终超高压水射流动能密度的49%；

By Cr microalloying , the fore eutectoid ferrite eduction is restrained , the distance between rows of pearlite is decreased , then the tensile strength , section shrinkage and drawing property of high carbon steel wire rod is obviously raised and improved .

高碳钢中加入的铬元素抑制先共析铁素体析出，减小珠光体片层间距，可明显提高抗拉强度，提高断面收缩率，改善线材的拉拔性能。

The results show that the strain resistivity increases with the increases of Zn content for the same cold deformation value . At a large deformation value ( section shrinkage up to 60 % ~ 85 % ), the resistivity increment is proportional to Zn content on the whole .

结果发现：相同应变量所导致的电阻增量随Zn含量的增加而增加，在大应变量情况下（断面收缩率为60%～86%），应变电阻增量与Zn含量基本成正比关系。

Each part section size shrinkage of heavy rail is obviously non-conformance after cooling .

冷却后重轨各部位断面尺寸收缩量有较明显的不一致现象。

Reduce the initial temperature and reduce the air flow rate of cooling can reduce the curve degree of heavy rail after cooling , reduce section size shrinkage rate of heavy rail after cooling .

降低冷却前重轨初始温度、减小冷却过程空气流动速度可以起到减小冷却后重轨弯曲度、减小重轨断面尺寸收缩量及减小重轨断面尺寸收缩的不一致程度的作用。

Based on equivalent bending moment method , section curvature induced by shrinkage and creep is analyzed .

在此基础上，考察了混凝土受弯构件挠度计算中的有效惯性矩法和曲率法。

Research of Stress Redistribution at the Section on Creep & Shrinkage of Sturdy Framework Concrete Arch Bridge

劲性骨架混凝土拱桥徐变收缩应力重分布试验研究