Based on the analysis of series of melting characteristics and mechanism on segregation impurities which are in the process of melting magnesium, the principle of refining and
refining technology of magnesium alloy melt are studied summed up with a certain
On the oxidation of that, in actual melting conditions, the elements of not only with the response, but with the reaction of the activity and the pressure on. Change the reaction of the product or activity with the gas furnace in the reaction of the pressure, can affect the trend of oxidation, and the degree of order, and even change the direction of reaction. This is the control or adjustment of the redox reaction theory. And understand melting under the conditions of the response mechanism to control oxidation of the link speed and impact of the factors (temperature, concentration, structure and nature of oxide film, etc.), to be effective against specific circumstances, improve the melting conditions, control of speed, Reduce the element of the burning.
Removal of pressure from the principle, with the exception of hydrogen can be refined removal of adsorption, inflatable refining removal, and removal of oscillation.
Among the impurities mixed in magnesium alloy melt, Fe and Ni are investigated in particular, because they are the main factor lowering the quality of magnesium alloy melt; As a current domestic method of the flux refining, also discuss the rare earth elements used to purify melt; Literatures point out that inflatable refining can be further in the future development of the purification method.