Biomechanical analysis of the posterior pedicle screw and the lateral mass screw on the atlas;

The lateral mass screw technique applying to the unstability of lower cervical spine;

Applied anatomy of the lateral mass of cervical vertebrae and its significance in the plate-screw internal fixation;

Introduced the design method of side slide and slanting guide pin demoulding thread mechanism, The practice proved that mold structure was simple and reliable, satisfied the quality requirement.

By the analysis of the demoulding failure of the side slide of the injection mould andreferring to the principle of ejector pins moving, ejector pins were added in the side slide and thestructure of the ejector pins was improved.

Aluminums reduction cell′s side carbon block damaged is a very common phenomenon,which affecting the normal operation of aluminums reduction cell,seriously will lead to leaking cell and even forced to stop cell and repair overhaul.

Based on the analysis for early damage of side carbon block for alminium smelting pots of 190kA series in Shanxi Guanlu Aluminium Co.

Through analyzing on characteristics of the compound material shell, proposed the activity block molding and inside slide block demoulding mechanism, the mold structure was simple and clever, not only reduced the mold cost and the development cycle, more over the mold life was improved.

Development of two-step demoulding mechanism at side slide block of injection mould;

Bending Die with Side Slide Block

In constructing of aluminum cell lining, traditional processing te ch nology cannot ensure the precision of sidewall carbon brick elevation and corner carbon brick edged surface, adopting milling machine to process sidewall carbon brick elevation and corner carbon brick edged surface not only can improve proc essing precision but also make masonry effect be very much good.