由于卸扣会使钻具产生弯曲力，因此，钻具接头必须尽可能低些坐在卡瓦上。
Since a bending force is exerted on the pipe during break out, the tool joint connection must be set in the slips as low as possible.
采用有限元法对低匹配条件下x 80钢级管线钢焊接接头的变形能力进行了研究。
The deformability of under-matched X80 grade pipeline steel welding joint was studied through Finite Element Method.
钻杆接头的各种纵向开裂属于低应力脆性断裂。
Longitudinal crack of drill pipe box joint is brittle fracture at low stress.
由于镁合金不填丝的TIG焊接接头强度低，焊缝表面成型不好，所以，镁合金的填丝tig焊接方法不可避免。
Because TIG welded joints without filler wire always hold low strength and poor formation, tungsten inert gas welding process with filler wire is inevitable.
而对于低弹性模量胶粘剂接头，间隙使得接头上的应力峰值明显上升，可能导致接头的名义强度和实际强度显著降低。
On the other hand, the recessing in the joint with low elastic modulus adhesive caus es the peak stresses increase evidently that may decrease the nominal and actual strength of the joint markedly.
中强匹配接头蠕变断裂位置在远离焊缝界面的低强度母材区，呈延性断裂性质。
However, the creep fracture of medium strength match joint, located in the low strength base metal remote from the weld interface, showed a ductile fracture character.
分析了TA5钛合金不同余高焊接接头的低周疲劳性能。
The low cycle fatigue property of TA5 Titanium alloy welded joint with different reinforcement was investigated.
优化后，接头的应力分布更加均匀，低应力区域大幅度降低。
The stress distribution became more even in optimized joint and low stress region became smaller on a large scale.
采用与模拟一致的工艺参数对铝合金板材分别进行点焊实验，制取接头低倍金相照片，并测量熔核直径和焊透率。
Do spot welding experiments to aluminum alloy plate in the same condition of simulation, prepare low magnification metallographic photos of joint, and measure nugget diameter and penetration rate.
该钎料具有熔点低，对母材的润湿性好，钎焊接头组织中含有强度、硬度较高的呈弥散分布的固溶体，以及接头强度较高等特点。
It has low melting point and good wettability to the base-metal, and contains a high-strength and high-hardness solid solution structure, with a high strength of soldering joint.
结果表明：随低强焊缝金属相对宽度变小，接头抗拉强度增大；
Its results show that with decreasing the relative width of under-matching weld metal, the tensile strength of welding joint increase.
本实用新型提供了一种连接电阻低，使用方便的低压接头。
The utility model provides a low-voltage joint with low connection resistance and easy use.
结果表明，火焰切割试样焊接接头的焊接热影响区比机械加工试样焊接接头的焊接热影响区宽，硬度低；
The test results show that the flame cutting heat affected zone is wider than machining and lower in hardness.
结果表明，火焰切割试样焊接接头的焊接热影响区比机械加工试样焊接接头的焊接热影响区宽，硬度低；
The test results show that the flame cutting heat affected zone is wider than machining and lower in hardness.
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