冷蚀检验在连铸坯质量控制中的应用实践

介绍了武钢第二炼钢厂通过采用冷蚀检验对连铸坯质量进行监控，确保了连铸机的运行状况，铸机精度，二次冷却系统，电磁搅拌系统以及铸坯内部的组织形态和结构等要素处于良好的受控范围。保证了多品种和高难品种钢生产的要求。     

冷轧轧辊磨损数学模型研究

针对我国某厂1420mm冷轧生产线，研究了轧辊磨损的数学模型。结合实测磨损数据，用轮廓曲线对比法修正模型并进行了模拟计算。计算结果与实测值十分吻合，显著提高了模型的计算精度。     

冷轧带肋钢筋在工程中的应用

结合某高层建筑工程实例 ,着重阐述了LL5 5 0级冷轧带肋钢筋的力学性能 ,并从其设计选用方面进行了论述。通过经济分析 ,指出冷轧带肋钢筋应该大力推广使用。     

不锈冷轧带钢表面光洁度的控制

不锈冷轧带钢表面光洁度是重要的产品质量指标，讨论了热轧带钢的表面粗糙度和冷轧工艺对成品表面光洁度的影响及控制方法。     

适合切断方矩管材的飞锯结构

当前一些直缝焊管机组所配备的垂直进锯型飞锯因易造成切断端面严重变形，不适合锯切正位生产的方矩型类管材。通过成功地塬垂直进锯飞锯机的实例，介绍了一种既能切断圆管，又以切断的各类异型管杜的飞锯。     

氨合成系统冷交换器面积配置探讨

对氨合成系统冷交换器的热平衡进行了编程计算，分析和探讨了冷交换热面积的合理配置；通过计算实例，对进出1：2温度、换热面积和氨冷耗氨进行了比较。结果表明，在投资许可的情况下配置较大的冷交换热面积在合成流程中是合理的。     

机载相控阵雷达阵面电源的热设计

在某型机载相控阵雷达中，阵面电源采用移相控制零电压软开关PWM变换技术，既能实现功率管的零电压开关，又能实现功率管的恒定频率控制，符合电力电子技术的发展方向。该电源功率大，功率密度高，与传统小功率机载电源相比，总功耗增加，热设计更复杂。文中介绍了该电源的热设计过程，并着重对冷板和高功率变压器的热设计进行了深入的探讨。     

Effect of residual stress on ACFM crack measurements in drill collar threaded connections

The drill collar threaded connection of the type used in hydrocarbon exploration is a critical component of the drillstring that is highly susceptible to fatigue damage. In an attempt to reduce costly downhole failures the connections are cold rolled to introduce compressive residual stress, and when in service the connections are routinely inspected. The Alternating Current Field Measurement (ACFM) technique is an increasingly popular method of thread inspection, however, results have indicated that the ACFM defect sizing capability may be compromised when it is used to inspect recently cold rolled connections. If a connection is cold rolled without first being defect free, subsequent inspections may under estimate crack depth with the standard interpretation. Inspection before rolling is therefore necessary.     

综述板带轧制技术的最新进展

主要介绍了冷、热轧板带生产技术的最新进展。     

Structural evolution and superplastic formability of friction stir welded AA 2095 sheets

Friction stir welding was used to join superplastic AA 2095 sheets. The effect of welding rate on the grain size distribution and grain boundary misorientations in the stir zone was investigated. The superplastic behavior of the weld nugget parallel to the welding direction was also characterized at 495 °C and strain rates from 10⁻⁴s⁻¹ to 10⁻²s⁻¹. Increasing the welding rate during friction stir welding augmented the formation of a fine-equiaxed high-angle grain boundary structure within the stir zone. Increasing intensity of plastic straining during friction stir welding resulted in enhanced properties during subsequent superplastic formation. The maximum strain-to-failure was obtained for the weld made at a tool speed of 1000 rpm and a weld rate of 4.2 mm/s when tested at a superplastic forming strain rate of 10⁻³s⁻¹.