So far the high grade mullite-corundum core frame for burning materials for deflection magnetic core have not been developed because the research on this subject state late in China.

Analysis of two types of central bearing seats of pumping units;

Based on the process improvement of bearing seat and numerical forming simulation,the rational project and the best process parameters were established.

By means of spectrum analysis technology,the article inspects and diagnoses centrifugal compressor unit,analyzes the vibration features of compressor shell,rotor and bearing seat,finds out abnormal vibration and logical connection among vibration features in three position,according to the rotor unbalance conclusion,main- rains the unit,recovers normal operation of the unit.

The detail forced status of the shaft of the overturn frame in the bearing chock overturn device has been described in this article,meanwhile the calculation review has been performed to the shaft rigidity after the structure upgrading finished.

In this paper,the authors analyzed by energy stable method that the stability of bearing chock of work roll about 2200mm high speed aluminum foil mill under two different restrict conditions which the gaps between bearing chock and bousing window are given or not.

The heat distortion of workroll bearing chock of 2050mm hot strip rolling mill employed in Baoshan continuous rolling mill is studied using finite element method(FEM),3D FEM temperature distribution program and SAP5 software.