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济南镀锌管上面残留着预应力的原因

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【 发布于:2018-06-07 17:57:37 】


在热镀锌方矩管上面残留着的压应力,可以提高本身的耐磨的性质以及受拉应力的疲劳的前度,而像在方管上面残留着的拉应力其实正与压应力相反。接下来就让我来为您介绍一下,镀锌方矩管上面残留着预应力的原因。

The residual compressive stress on the hot-dip galvanized square tube can improve its wear-resistant properties and the fatigue front of the tensile stress, while the residual tensile stress on the square tube is actually opposite to the compressive stress. Next, let me introduce to you why the prestress remains on the galvanized square pipe.

因为冷塑性而引发的变形形成的残留的应力。在对镀锌方矩管在进行加工的时候,因为切削力的作用,导致方管已加工的表面受到强烈的冷塑性而导致变形,导致这种冷塑性变形的原因当中最为突出的是:刀具上面的刀面对方管的表面的挤压以及摩擦而产生的塑形变形,因为方管的基体金属在这个时候正处于弹性的状态。

济南镀锌管

Residual stresses due to deformation caused by cold plasticity. When the galvanized square tube is processed, the machined surface of the square tube is caused by the strong cold plasticity due to the effect of the cutting force. The most prominent cause of this cold plastic deformation is that the knife above the knife faces the extrusion of the surface of the square tube and the plastic deformation produced by the friction. Because the base metal of the square tube is in an elastic state at this time.

在切削力消失之后,基体的金属就趋向于恢复的状态,这个时候的镀锌方矩管已经受到了塑形的表面上面的限制,导致基体恢复不了原来的形状,这样就会在表面上面残留着应压力,这些在其上面残留着的应压力就会到导致它的耐磨性以及抗疲劳的强度下降。

After the cutting force is disappearing, the metal of the matrix tends to be restored. At this time the galvanized square tube has been restricted by the shape of the plastic surface, causing the matrix to be unable to restore the original shape, so that the stress on the surface will remain on the surface, and the stress remaining on the surface of the surface will lead to it. The wear resistance and the strength of anti fatigue decrease.

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Thank you for your busy schedule to pay attention to the product information released by the company. If you want to know more, you can come to our company for consultation. We welcome your presence and cooperate with you!



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