Metal glass melt cast moulding method and its device
A metal glass, casting and forming technology, applied in the field of metallurgy and metal material processing, can solve the problems of high equipment requirements, easy generation of pores in the sample, large equipment investment, etc. Effect
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[0038] Example 1
[0039] Mg-based metallic glass material is melted in the resistance furnace, the composition is Mg 65 Cu 25 Y 10 . It is melted under the protection of Ar gas, and the casting temperature of the metal glass melt is controlled between 580 and 700 ℃ through PID adjustment. The sample diameter of the copper mold is 3mm. The negative pressure suction casting method is used to form, first through the control valve 6, the pressure measuring device 7, and the negative pressure stabilizing device 8. The negative pressure (vacuum degree) of the negative pressure generator 5 control device is 8kPa. Connect the mold with the suction tube at the lower end and the pipe connecting device at the upper end. When pouring, the suction tube is inserted into the metal melt, and the control valve is opened. Under the action of negative pressure, the metal glass melt in the crucible rises into the cavity of the copper mold through the suction tube. The mold is full, close the control...
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[0040] Example 2
[0041] Melting aluminum-based metallic glass material in the resistance furnace, the composition is Al 85 Ni 5 Y 8 Co 2 . It is melted under the protection of Ar gas, and the pouring temperature of the metal glass melt is controlled between 700 and 750 ℃ through PID adjustment. The parts of the copper mold are plate-shaped parts with an average thickness of 2mm. The negative pressure suction casting method is used for forming, firstly through the control valve 6, the pressure measuring device 7, and the negative pressure stabilizing device 8. The negative pressure (vacuum degree) of the negative pressure generator 5 control device is 10kPa. When pouring, the suction tube is inserted into the metal melt, and the control valve is opened. Under the action of negative pressure, the metal glass melt in the crucible rises into the cavity of the copper mold through the suction tube. The mold is full, close the control valve, lift the copper mold and the suction tube ...
Example Embodiment
[0042] Example 3
[0043] Mg-based metallic glass material is melted in the resistance furnace, the composition is Mg 75 Ni 15 Nd 10 . It is melted under the protection of Ar gas, and the pouring temperature of the metal glass melt is controlled between 650 and 750 ℃ through PID adjustment. The part cavity of the copper mold is a thin plate with an average wall thickness of 2mm. The negative pressure-differential pressure forming method is used to form, first through the control valve 6, the pressure measuring device 7, and the negative pressure stabilizing device 8. The negative pressure (vacuum degree) of the negative pressure generator 5 control device is 5 kPa. Connect the mold with the suction pipe at the lower end and the connecting pipe at the upper end. When pouring, the suction tube is inserted into the metal melt, and the gas pressure of the metal glass melt liquid level in the crucible is controlled to 10kPa by the protective gas device and the flow pressure controlle...
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