The quality of the FBW joint is mainly decided by temperature field distribution, process parameters during upsetting and the structure defects.
影响闪光焊接头性能的最主要因素包括焊缝区域的温度场分布、闪光顶锻的工艺参数和焊缝区域出现的缺陷组织。
The fracture failure of the piston engine exhaust pipe was analyzed from welding structure defects, welding structure defects and working environment etc.
针对某活塞式发动机排气管断裂现象，从断裂处焊接结构缺陷、焊缝组织缺陷和零件工作环境等方面进行分析。
Head structure defects of 7738 umbrella-type tower are presented after snow damage. Improvement methods are introduced and check-up calculation of load is made.
经过雪害教训后，提出了7738伞形铁塔头部结构存在的缺陷，介绍了改进的方法，并进行有关载荷的校验计算。
The results show that oxide inclusion in grain boundary and structure defects from casting and forging process are the main reasons for failure of the copper sleeve.
结果表明：晶界氧化夹杂和铸造、锻造造成的组织缺陷是引起结晶器铜套快速失效的主要原因。
There are three main interior structure defects in the preparation of aluminum foam with melt foaming process such as free-bubble-layer at the bottom, partial free-bubble-zone and heat crack.
泡沫铝常见的内部缺陷主要有底部无泡层、局部无泡区和内部热裂纹。
There are three main interior structure defects in the preparation of aluminum foam with melt foaming process such as free-bubble-layer at the bottom, partial free-bubble-zone and heat crack.
泡沫铝常见的内部缺陷主要有底部无泡层、局部无泡区和内部热裂纹。
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