Thermal deformation resistant magnesium alloy
A heat-resistant deformation and magnesium alloy technology, which is applied in the field of magnesium alloy production, can solve the problems of poor high-temperature mechanical properties and coarse grains of AZ31 magnesium alloy, so as to reduce micro-shrinkage, improve creep resistance, and increase density Effect
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Embodiment 1
[0022] Put 1128kg of magnesium ingots, 30kg of aluminum ingots, and 16.8kg of zinc ingots into the prepared clean crucible and add 18kg of RJ-2 bottom flux to melt them. During the process, sprinkle 3.6kg of RJ-4 covering agents to prevent burning. The entire melting process takes Control at 4h, and the final temperature of magnesium liquid is controlled at 670°C; after melting, blow argon gas into the magnesium liquid, and use mechanical stirring, add RJ-6 refining agent 30kg and manganese chloride 13.75kg at the same time for refining, time control In 45 minutes, the temperature was controlled at 690°C; after the refining, the magnesium alloy liquid was controlled at 700°C, and 18kg of rare earth element cerium and 1.2kg of metal strontium were added, and the time was controlled at 10min, and the temperature was controlled at 700°C; The flux and inclusions are settled, the time is controlled at 30min, and the temperature is controlled at 660°C; finally, pouring is performed a...
Embodiment 2
[0025] Put 1126kg of magnesium ingots, 42kg of aluminum ingots, and 12.0kg of zinc ingots into the prepared clean crucible and add 24kg of RJ-2 bottom flux to melt them. During the process, sprinkle 4.8kg of RJ-5 covering agents to prevent burning. The entire melting process takes Control at 5h, and the final temperature of magnesium liquid is controlled at 680°C; after melting, blow argon gas into the magnesium liquid, and use mechanical stirring, add RJ-5 refining agent 24kg and manganese chloride 9.65kg at the same time for refining, time control In 45 minutes, the temperature was controlled at 705°C; after the refining, the magnesium alloy liquid was controlled at 710°C and 12kg of rare element cerium and 3.6kg of metal strontium were added, the time was controlled at 10min, and the temperature was controlled at 710°C; Let the flux and inclusions settle, the time is controlled at 30min, and the temperature is controlled at 670°C; finally, pouring is performed at a temperatu...
Embodiment 3
[0027] Put 1124.5kg of magnesium ingots, 54kg of aluminum ingots, and 7.2kg of zinc ingots into the prepared clean crucible, add 30kg of RJ-2 bottom flux to melt, and sprinkle 6.0kg of RJ-5 covering agent during the process to prevent burning. The time is controlled at 6 hours, and the final temperature of the magnesium liquid is controlled at 690°C; after the melting is completed, argon gas is blown into the magnesium liquid, and mechanical stirring is used, and at the same time, 18 kg of RJ-4 refining agent and 5.50 kg of manganese chloride are added for refining. Control the temperature at 720°C for 45 minutes; after refining, add 6kg of rare earth element cerium and 6.0kg of metal strontium to the magnesium alloy liquid at 720°C, control the time for 10min, and control the temperature at 720°C; Let the flux and inclusions settle, the time is controlled at 30min, and the temperature is controlled at 680°C; finally, pouring is performed at a temperature of 680°C and in a prot...
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