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矿用圆环链弯曲点是应力集中点，肩部断裂发生于该点附近。
The bending point of steel chains for mining is the center of stress, at which the shoulder fracture always occurs.
本文对矿用圆环链临焊缝部位在焊接过程中产生的裂纹进行了分析。
There are two types of cracks in the area next to weld seam of annular chains for mining during welding process, ie, teared type and punctured type cracks.
研究了新型准贝氏体钢制造的矿用圆环链闪光对焊焊缝的组织与性能。
Studied the joint structure and properties of flash butt welding to mining chains round made of new type meta-bainite steel.
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