There exist three brittle temperature ranges during the course of solidification and cooling process in the weld metal of Low-carbon steel.
低碳钢焊缝金属凝固冷却过程存在三个脆性温度区。
In this research work, the thermal elastic-plastic method is used to analyze the dynamic thermal stress in the stress-frame specimen during its solidification and cooling process.
本研究用热弹塑性方法分析铸造应力框自凝固到冷却过程动态热应力。
Simulating different solidification cooling rate with step-metal mould and sand mould, the effect of solidification cooling rate on microstructure and properties of high boron steel were studied.
利用阶梯型腔金属模和砂型模拟不同的冷却速度，研究了冷却速度对高硼钢凝固组织和性能的影响。
The cooling and solidification of part are very important steps in extrusion-blow molding, which affect greatly both the properties and productivity of the blown parts.
在挤出吹塑过程中，冷却和固化是一个非常重要的阶段，它对挤出吹塑制品的性能及生产效率均有很大影响。
Blow molding is the main molding method for the hollow plastic products, including three steps such as parison formation, parison inflation and cooling solidification in its molding process.
吹塑成型是成型中空塑料制品的主要成型方法，其成型过程包括型坯成型、型坯吹胀和制品的冷却固化三个阶段。
The quantitative relationship between secondary dendrite arm spacing and solidification cooling rate of AZ91 was obtained by regressive analysis.
用数学回归的方法得到了AZ91镁合金的凝固冷却速度与二次枝晶间距的定量关系式。
Water cooling circuits provide rapid, and directional solidification.
水冷循环提供迅速定向凝固。
During solidification of hollow ingot, its solidification and quality are seriously affected by the heat transfer boundary conditions between inner sleeve of core and cooling medium.
在空心钢锭凝固过程中，芯子内套筒与冷却介质之间的换热条件对空心钢锭的凝固过程及质量有着重要的影响。
In suspension pouring process the increase of cooling intensity during the solidification period will increase the tendency of volume solidification and decrease the solidification time.
悬浮浇注增加铸钢凝固期间的冷却强度，缩短凝固时间，增加体积凝固的倾向性。
In the solder cooling and solidification process, the joints should not be subject to any external impact.
在焊料冷却和凝固的过程中，焊点不应受到任何外力的影响。
An introduction was made to volumetric changes of castings and dimension changes of mold cavity occurring during liquid cooling and solidification of nodular iron castings.
介绍球铁冷却、凝固过程中的体积变化以及型腔尺寸变化。
Electromagnetic constrained forming technology features die-free, electromagnetic stirring and strong cooling, its solidification is a dynamic process of convective heat and mass transfer.
电磁约束成型技术具有无模、电磁搅拌、强冷却等工艺特点。其凝固过程为一对流传热传质的动态过程。
In the twin cooling-strip and twin roll rapid solidification method, the metal strip has lateral thick difference.
采用双辊法和双带法制备的快速凝固带材，存在着较大的横向厚差。
The effects of different casting speeds, degree of superheat and secondary cooling to the central and Angle part temperatures and the final solidification point have been studied.
研究了不同拉速、过热度及二冷比水量对铸坯表面中心和角部温度及铸坯凝固终点位置的影响。
The distribution of slab temperature field and the change law of solidification course were studied deeply during the secondary cooling and practice of soft reduction operation.
深入研究了铸坯在凝固与轻压下加工过程中的温度分布和凝固进程的变化规律。
The principle and characteristics of double cooling-strip rapid solidification technique for strip forming are introduced.
介绍了双带快冷法制备金属带材新技术的基本原理和特点。
According to classical solidification theory and the mechanism of solidification microstructure under pulse current, the effect of super-cooling degree variation on nucleation rate was discussed.
通过讨论过冷度的变化对形核率的影响，研究了电流产生的电磁力效应及焦耳热效应对过冷度的影响，建立了电流与过冷度的关系式。
According to classical solidification theory and the mechanism of solidification microstructure under pulse current, the effect of super-cooling degree variation on nucleation rate was discussed.
通过讨论过冷度的变化对形核率的影响，研究了电流产生的电磁力效应及焦耳热效应对过冷度的影响，建立了电流与过冷度的关系式。
应用推荐