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双向回流油封具有良好的密封性能,适用于正反方向高速旋转轴的密封。但是,必须加工一套合格的模具(图1),才能保证压出合格的产品,加工这套模具的关键是型芯(图2)
Two-way return oil seal has good sealing performance, suitable for both positive and negative direction of rotation shaft seal. However, a qualified mold must be machined (Figure 1) to ensure that the qualified product is extruded. The key to machining this mold is the core (Figure 2)