Development and applied experiment of low-frequency magnetic field generator used for organism cryopreservation;

On the basis of increasing engineering practicability,control effect,cooling effect and gas shielded effect,two new magnetic field generators used to control high current MAG cladding and fillet welding are designed.

Composite refrigeration method, in which semiconductor refrigeration was taken as core, combined with vapor-compression refrigeration,was firstly adopted to develop a kind of novel cooling gas generator used in cutting.

Aiming at the design shortage of the vibration generator system in the quick-change dais for 4# continuous casting machine,the stub diameter of the eccentric shaft is increased from 75mm to 110mm,the transition corner radius in the root of the stub is increased from 1.