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High temperature of bearing failure data analysis and prevention research method

by:Waxing     2020-11-17
High temperature high temperature rolling bearing failure analysis for rolling bearing is one of indispensable mechanical design working parts move. Although high temperature rolling bearing small volume of low cost, but once we high temperature rolling bearing failure, to operate machinery and even the society as a whole production management equipment company is a huge losses. With the rapid economic development of information technology, the enterprise to the requirement of high temperature rolling bearing the quality students is higher and higher. Automated, continuous production enterprises, in particular, the reliability of the requirements for high temperature rolling bearing is very strict, so the teachers how to effectively improve the reliability of high temperature rolling bearing has gradually become high temperature rolling bearing manufacturers and using different client urgently needs to solve the main problems existed in one of the reasons. High reliability and high temperature rolling bearings of rolling bearing fault mode has a close relationship, in order to improve the reliability of high temperature bearing, we must from the high temperature bearing, roller bearing fault analysing failure mode of high temperature, the concrete measures of failed to find a solution. Bearing the failure mechanism of 1 a or temperature. Contact fatigue failure of contact fatigue failure is refers to the material on the surface of the bearing fatigue temperature alternating stress occurrence of failure. Common form of learning fatigue invalidation is contact fatigue spalling. Contact fatigue spalling occurs in a high temperature bearing enterprise work, and the surface, is often accompanied by fatigue crack, from our first contact surface has the following major produce alternating shear stress, which can then be extended to the surface didn't develop their own different flake shape, such as dot to pitting corrosion or pitting spalling, peel into small sheet according to the shallow flaking. Due to spalling be expanded gradually, the development will gradually expand to the deep web, forming a deep spalling. Deep spalling is contact fatigue failure of fatigue source. 2. Wear failure wear failure is due to the work surface between the surface of the metal from time to time, wear and tear caused by the relative sliding friction caused by the failure. Continuous wear will lead to high temperature bearing parts gradually damaged, eventually lead to problems such as high temperature bearing size accuracy loss. Failure is one of the common failure forms of high temperature bearing wear, can be divided into of abrasive wear and adhesive wear. Refers to squeeze hard working temperature of bearing wear debris particles or foreign bodies or hard metal and contact with the mentioned appearance and make its move relative to the wear between the wear and tear, often form scratch groove of the outer bearing operating temperature. Adhesive wear refers to the microscopic appearance because of the economic friction bump or foreign bodies make the friction surface stress distribution, serious deterioration, the condition of smooth technology due to the friction heat production, the part is easy to form trade frictions through deformation and partial surface friction welded phenomenon, serious when appearance metal enterprise may lead to partial condensation, the contact part of social forces on the surface of friction welding between point increases with torn from the matrix plastic deformation. 3. The main reason for the failure of high temperature bearing failure is the defect of two factors and overload. When more than the ultimate strength of the material applied loads caused by parts called overload fracture damage. The main reason is that overloading is a unexpected accident or improper installation of the host. High temperature bearing parts of the micro cracks, shrinkage cavity, bubbles, bulk foreign bodies, and the organization of local overheating can in the time of fracture defect defects such as violent vibration or impact overload causes sunburn, known as the fracture defects. The previous: high temperature bearing lubricant and oil processing bad next article: none
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