结果表明，大尺寸的非金属夹杂和背帽外缘的点焊是引起泵轴过早断裂的主要原因。
The fracture of the pump shaft is mainly caused by large size non metallic inclusions and point welding between the lock nut and the pump shaft.
上述轴棍与挂钩是一根钢筋弯曲而成或一根以上钢筋焊接而成，其非金属辊子是瓷珠辊子或胶木辊子。
The shaft stick and the hanging hooks are formed by bending one steel bar or welding more than one steel bar. The non-metal roller is a ceramic bead roller or a bakelite roller.
非金属材料隔热件为套设在转子驱动轴下部的主轴内隔热套。
The nonmetal material insulating part is an inner insulating sleeve of the main shaft, which is sleeved at the lower part of the rotor driving shaft.
非金属材料隔热件为套设在转子驱动轴下部的主轴内隔热套。
The nonmetal material insulating part is an inner insulating sleeve of the main shaft, which is sleeved at the lower part of the rotor driving shaft.
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