Method and die for thinning microstructure of magnesium alloy material through continuous chill casting, squeezing and cutting
An alloy material and microstructure technology, which is used in the field of continuous chill casting, extrusion and shearing to refine the microstructure of magnesium alloy materials, can solve the problems that the effect of refining grains needs to be improved and is not obvious, and can shorten the production cycle and achieve a wide range of materials. , the effect of fast construction
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[0023] The present invention will be further described below in combination with specific embodiments.
[0024] The method for continuous quenching casting, extrusion and shearing of the present invention to refine the microstructure of magnesium alloy materials is characterized in that it comprises the following steps:
[0025] 1. Inject the high-temperature or semi-solid magnesium alloy melt and the magnesium alloy composite modifier from the sprue cup into the inner cavity of the casting extrusion mold; the magnesium alloy composite modifier can be selected from a suitable formula in the prior art; a specific magnesium alloy composite modifier, which includes C 2 Cl 6 , Zr, CaCO 3 Three components, the mass ratio range of the three components is 1.5-2.5:0.8-1.8:0.7-1.6, and the quality of the modifier added is 0.1-0.12% of the mass of the high-temperature magnesium alloy melt; The best range of mass ratio is 2:1:1;
[0026] 2. A cooling water jacket is installed on the ...
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