High temperature stainless steel bearing fatigue failure reason analysis

Stainless steel high temperature bearing surface fatigue failure reason analysis of high temperature rolling bearing failure analysis work appearance of stainless steel imported high temperature bearing strong systems engineering ( High temperature bearing the loss of their normal functions in work progress, this can lead to problems or phenomenon an important component of, can't work properly so that the high temperature of bearing life failure ( Early failure can be divided into two kinds of failure and failure. Stop pitting corrosion and fatigue of this early lead to high temperature lead to bearing failure analysis, and put forward the improvement measures, with the progress of the stainless steel imports of high-temperature service life and reliability of the bearing. Fatigue failure is imported high temperature stainless steel company affect the failure analysis methods for bearing appearance, is in under the action of alternating load to the long-term development of the metal and the failure, mainly for the students of fatigue crack germination, extension, and fracture process. Cracks have two different ways: one: from the appearance, namely in the process of rolling stainless steel imported high temperature bearing contact, because of the action of external load the contact stress of cyclical changes in the work appearance, on the surface of plastic deformation and deformation hardening, tiny crack appearance appear in after work, from the appearance to carry out, in the form of crack between the two appearance, because the smooth agent Xie into, make the wall stress of crack open, forcing crack development forward; 2: from the surface structure of crack generation, in a different appearance in contact stress under the recurring role of bond was born from the contact of crack appearance has certain influence depth study, and along with looks into the direction of the development of Angle can be carried out, after arriving in depth analysis of a certain enterprise from appearance, and the more out to look after the flake form pitting, left behind in the contact appearance pockmark. Crack from the surface or from the surface, both of which is the objective existence, Parts after carburizing, quenching and so on processing, if uneven hardness, the organization is not uniform, adverse internal stress, etc. , usually under the effect of contact stress from the surface cracks. On the other hand, if the parts surface finish quality is poor, there are defects ( Oxidation and decarburization) , high friction or smooth, the crack from the appearance. The previous: outer spherical bearing temperature classification model next up: none