Laboratory using small electromagnetic stirrer 2016

             Compared with other mixing way, electromagnetic stirring compatible with the other mixing way’ advantages, and has its own unique characteristic, therefore, electromagnetic stirring has become the common use stirring method.             Effect of stirring             To adopt the advanced technology of electromagnetic stirring, through lots of experiments and industrial production at home and abroad by using electromagnetic stirring main effect achieved:             Reducing slag content;             Reduce the center shrinkage cavity;             Eliminate the macrosegregation;             Increase the equiaxial crystal ratio;             Improve solidification organization, etc.                   The system composition             AC Power Source: through AC-DC-AC inverters frequency conversion way to make single phase or three phase 50 hz frequency power supply converted into frequency adjustable in 5-30 hz, 0-380 - v voltage adjustable phase mutual difference 90 degrees two-phase or 120 degrees power supply to the sensor creating the magnetic field.             Inductor: Sensors is energy conversion components, converts electrical energy into magnetic energy act on metal melt,reach the stirring effect.             Cooling system: By forcing water cooled or air cooled make the system working in a safe environment temperature.             Control and protection system: In addition to the complete system of conventional electric control, for the system to provide more complete electrical protection.             range of application             a Aluminum, magnesium alloy experiments stirring             b Semi-solid forming studding             c course of crystallization experimental study             d die-cast formation             e Foam metal forming             f Metal refining mixing               matters need attention             1. The repair and maintenance of the equipment shall be composed of professional and technical personnel operation.             2 Without the manufacturers allow devices shall not change the circuit and equipment (Can replace the same specifications of the device)             3 The person has the electronic or metallic implants (such as a pacemaker or metal connector in the spine) during the equipment operation are strictly forbidden to close to the electromagnetic stirrer sensors.             4 Keep the equipment clean, do not put sundry.             5 Operation should be performed according to the operating instructions of the equipment.