裂纹

This paper mainly introduces the research of hot forming process of integral brake beam frame of the lorry .

本文主要介绍了铁路货车用整体式制动梁架热成型的研制过程，替代了以往的焊接结构，解决了在铁路货车提速、重载以后产生的裂纹、开焊、折断等质量问题。

Main production blowing, Press, centrifugal, and other forms of glass products: glass cracks, bubble glass, clouds of glass and glass Deng Zhao, Yan Gang, candle cups, cups, bottles, glass products, such as printing

主要生产吹制、机压、离心、等多种形式的玻璃，产品有：裂纹玻璃、汽泡玻璃、云彩玻璃、玻璃灯罩、烟缸、烛杯、水杯、酒瓶、印花等玻璃产品

The paper presents an approach to deal with residual stress intensity factors for surface cracks in a thick plate with butt joints by using line-spring model.

利用线弹簧模型求解对接厚板表面裂纹的残余应力强度因子。

First, the mismatching factors of submerged arc welding and shielded metal arc welding of S355ML steel (65mm thickness) were determined with "direct measurement method". Then, the butt welds of SAW and SMAW were made to full thickness fracture toughness specimens and the fracture toughness in welds centre were measured by CTOD test.

用&直接测量法&确定了低合金高强钢S355ML钢板（厚65mm）自动埋弧焊和手工电弧焊的焊缝强度匹配系数，同时将这两项焊接工艺的对接焊缝制成全厚度断裂韧度试样，运用裂纹尖端张开位移试验方法测定其焊缝中心的断裂韧度。

Analysis was made on the fracture of pipe fittings and screw cap which connected water meter by the flaw theory and metal mechanics after stress accounting and microstructure analysis of the broken position.

通过对断裂位置的应力计算及断裂位置的微观组织分析，应用裂纹理论及材料力学相关方法，对自来水表管接头及螺母断裂进行了分析研究。

The taper of the pipe screws has notable influence on the loading distribution along screws, so it is possible to improve load-bearing capacity of the screw coupling by selecting a suitable taper.

文中采用虚拟接触载荷法和位移法研究了螺纹管连接中螺纹齿根部带半椭圆表面裂纹时应力强度因子的计算，在此基础上，提出了螺纹连接简化计算模型。

In order to gain sample with smooth surface and uniform thickness, it was necessary to optimize molding and carbonization process.

过高的压力和过快的碳化速率易使制品出现裂纹、空洞现象。

It is noteworthy that, because of the inks and adhesives in business card printing and membership card making will gradually laid up to business card printing and membership card making machine guide roller, self adhesive materials can also cause the perimeter of cracks.

值得注意的是，由于油墨和粘合剂在制卡和会员卡制作过程中会逐渐积存到制卡和会员卡制作机的导纸辊上，也会引起不干胶材料边缘出现裂纹。

Because there is no standard of fracture mechanics experiment for rocks, before applying the new method to study anti-plane shear crack, testing experiments had been carried out by using it on universal testing machine Instron 1185 to measure the values of Kic and Kiiic for rocks (Black Gabbro, Carrara Marble, Tennessee Sandstone), which had been obtained by using other experiment methods and technology before.

因为对于岩石还没有相应的断裂力学实验规范。因此在把本装置用于岩石反平面剪切裂纹研究之前，先用它对已经用其它技术测定了断裂力学常数，K〓，的岩石(Black Gabbro，Carrara Marble，Tennessee Sandstone)在Instron 1185万能试研机上用该装置进行了相应的K〓，K〓等测定。

A new direct chill casting model based on the proCAST software characterizes heat and stress conditions and solidification criteria, and assists in predicting crack formation during aluminum casting.

直冷模铸造的建模和优化，可以减少铸锭开裂这种新的直冷铸造模型是在正面铸造软件的基础上描述在压力和应力状态和凝固标准下预测铝合金铸造过程中裂纹的形成方式。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。