The main reason of inclined pipe fracture was low frequency stress fatigue failure at temperature field.
斜管开裂的主要原因是温度场下的低频应力疲劳破坏。
The fracture of follower tongs holder of pipe pliers is analyzed.
本文研究了管子钳活动钳口断裂现象。
For HDPE pipe material, the weibull stress maybe an effective fracture parameter.
对于HDPE管道材料，威布尔应力可以作为有效的断裂控制参量。
And points out simultaneously it is convenient, reasonable and economic for the pipe product to be tested for its fracture toughness of J integration with small samples.
指出对这样的管材做小试样的J积分试验来测试其断裂韧性既方便、合理，又经济。
The formation and propagation mechanism of the cracks is discus - sed and the cause for the stress corrosion fracture in the brass pipe is elucidated.
文中讨论了裂纹的形成和传播机制，并阐明了铜管出现应力腐蚀破裂的原因。
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。
The microstructure and chemical composition of cracked water-cooling wall pipe used in power plant were analyzed, and its fracture was analyzed by SEM.
对开裂的电厂水冷壁管进行了化学成分及金相组织分析，并对断口进行了扫描电镜分析。
The reason of the Weld Joint Cracking on high frequency welding pipe was investigated by using macroscopic observation, metallographic technology, fracture analysis and EBSD technology.
本文通过使用宏观观察、金相分析、断口分析和电子背散射衍射（EBSD）等分析手段对高频焊管焊后弯管开裂的原因进行了分析。
The weathering quality of plastics pipe is a valued question, which is relative with welding quality and mechanical fracture.
塑料管的耐老化性能及焊接质量与力学破坏有关，是需要重视的问题。
The drill pipe failure assessment demonstrates the longitudinal brittle fracture will be avoided when the transverse impact power of the material is over 80J.
应用钻杆失效评估技术研究表明，横向材料冲击功大于80J将避免钻杆内螺纹接头纵向脆性开裂失效。
If it is not timely found, the copper pipe will fracture and the water will be overfall.
如不及时发现，铜管就会破裂，水外溢。
In case of the oil casing pipe taken place staggered fracture, there can not put down the instruments in the well, the explosion method is often to be used.
研究油井套管由于错断，无法使下井工具通过情况下，采用爆炸方法打通错断口。
Wire wrapped on cement pipe occurs brittle fracture in crack of cement pipe supplying water under pressure.
水泥管在输水加压后产生爆裂，水泥管缠绕钢丝产生脆断。
There had been fracture on weld of certain motorcar vent-pipe soon after used.
某汽车用排气管使用不久焊缝处断裂。
Due to the increasing number of deep Wells and directional Wells being drilled, longitudinal fracture occurred on the box-ended drill pipe tool joint is often reported.
近年来由于深井、定向井等逐渐增多，油气井钻井中钻杆内螺纹接头纵向开裂失效成为常发事故。
The pipe strings being used now for well fracture all have shortcomings in fracture operation of heavy-deviated and much deeper Wells, that decreases the success ratio of fracture operation.
现有的压裂管柱应用于大斜度超深井都存在明显的不足，影响了压裂施工成功率。
The pipe strings being used now for well fracture all have shortcomings in fracture operation of heavy-deviated and much deeper Wells, that decreases the success ratio of fracture operation.
现有的压裂管柱应用于大斜度超深井都存在明显的不足，影响了压裂施工成功率。
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