Method for carrying out warming, rotary rolling, fragmentation and spheroidization on second phase in magnesium alloy
A magnesium alloy, clockwise rotation technology, applied in the field of metal material rolling processing, can solve the problems of difficulty in greatly improving the comprehensive mechanical properties of magnesium alloys, inability to mass industrial production, high production costs, etc. Effects of stress relief annealing and recrystallization annealing, saving energy consumption
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Embodiment 1
[0032] A method for increasing temperature and rotating rolling to fragment and spheroidize the second phase in magnesium alloy, comprising the following steps:
[0033] S1, pre-heating treatment
[0034] In a temperature environment of 250°C, the magnesium alloy sample was heat-preserved for 20 minutes to eliminate segregation inside the magnesium alloy sample and reduce rolling cracking. After heat preservation, warm water at 40°C was used to quench the magnesium alloy sample;
[0035] S2, the second phase of single-pass crushing
[0036] The magnesium alloy sample was preheated at 250°C for 10 minutes, and rolled in a single pass with a rolling reduction of 15%, so that cracks were generated in the large-sized second phase;
[0037] S3. Spheroidizing the second phase by heating and rotating rolling
[0038] S31. Rotate the magnesium alloy sample clockwise by 90° after the single-pass rolling, keep it warm for 5 minutes in a temperature environment of 200°C, and perform th...
Embodiment 2
[0047] A method for increasing temperature and rotating rolling to fragment and spheroidize the second phase in magnesium alloy, comprising the following steps:
[0048] S1, pre-heating treatment
[0049] In a temperature environment of 350°C, the magnesium alloy sample was heat-preserved for 60 minutes in order to eliminate segregation inside the magnesium alloy sample and reduce rolling cracking. After heat preservation, warm water of 60°C was used to quench the magnesium alloy sample;
[0050] S2, the second phase of single-pass crushing
[0051] The magnesium alloy sample was preheated at 300°C for 20 minutes, and rolled in a single pass with a rolling reduction of 20%, so as to generate cracks in the large-sized second phase;
[0052] S3. Spheroidizing the second phase by heating and rotating rolling
[0053] S31. Rotate the magnesium alloy sample clockwise by 90° after single-pass rolling, keep it warm for 15 minutes in a temperature environment of 250° C., and perform...
Embodiment 3
[0064] A method for increasing temperature and rotating rolling to fragment and spheroidize the second phase in magnesium alloy, comprising the following steps:
[0065] S1, pre-heating treatment
[0066] In a temperature environment of 250°C, the magnesium alloy sample was heat-preserved for 20 minutes to eliminate segregation inside the magnesium alloy sample and reduce rolling cracking. After heat preservation, warm water at 40°C was used to quench the magnesium alloy sample;
[0067] S2, the second phase of single-pass crushing
[0068] The magnesium alloy sample was preheated at 250°C for 10 minutes, and rolled in a single pass with a rolling reduction of 15%, so that cracks were generated in the large-sized second phase;
[0069] S3. Spheroidizing the second phase by heating and rotating rolling
[0070] S31. Rotate the magnesium alloy sample clockwise by 90° after the single-pass rolling, keep it warm for 5 minutes in a temperature environment of 200°C, and perform th...
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