Heat treatment method of aluminium alloy sleeper beam material
A heat treatment method and aluminum alloy technology, applied in the field of heat treatment, can solve the problems of harsh working conditions, difficult manufacturing, dependence on imports, etc., and achieve the effect of excellent comprehensive mechanical properties and increased elongation
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Embodiment 1
[0016] In this embodiment, the grade of the aluminum alloy corbel is: AlSi7Mg0.3 in the DIN EN1706 standard, which is equivalent to the domestic aluminum alloy grade ZAlSi7MgA. Performance heat treatment is carried out on the corbel test piece, so that the corbel material has a better comprehensive mechanical property. The steps of heat treatment are as follows: firstly carry out solution treatment, the solution temperature is 530°C, and the solution time is 8h, then water quenching treatment is carried out in 65°C water, the treatment time is 40min, and finally aging treatment is carried out, the aging temperature is 170°C, and the aging time for 5h. Tensile samples were taken from the bolster parts after heat treatment of the above properties, and the test results were: yield strength 250MPa, tensile strength 275MPa, elongation 2%. The above heat treatment methods for the corbel beam can ensure that the corbel beam has better comprehensive mechanical properties and meet the...
Embodiment 2
[0018] In this embodiment, the grade of the aluminum alloy corbel is: AlSi7Mg0.3 in the DIN EN1706 standard, which is equivalent to the domestic aluminum alloy grade ZAlSi7MgA. Performance heat treatment is carried out on the corbel test piece, so that the corbel material has a better comprehensive mechanical property. The steps of heat treatment are as follows: firstly carry out solid solution treatment, the solution temperature is 540°C, and the solution time is 10h, then water quenching treatment is carried out in 75°C water, the treatment time is 50min, and finally aging treatment is carried out, the aging temperature is 158°C, and the aging time for 4h. Tensile samples were taken from the bolster parts after heat treatment of the above properties, and the test results were: yield strength 215MPa, tensile strength 265MPa, elongation 4%. The above heat treatment methods for the corbel beam can ensure that the corbel beam has better comprehensive mechanical properties and m...
Embodiment 3
[0021] In this embodiment, the grade of the aluminum alloy corbel is: AlSi7Mg0.3 in the DIN EN1706 standard, which is equivalent to the domestic aluminum alloy grade ZAlSi7MgA. Performance heat treatment is carried out on the corbel test piece, so that the corbel material has a better comprehensive mechanical property. The steps of heat treatment are as follows: firstly carry out solution treatment, the solution temperature is 535°C, the solution time is 9h, then water quenching treatment is carried out in 80°C water, the treatment time is 60min, and finally aging treatment is carried out, the aging temperature is 165°C, and the aging time for 4h. Tensile samples were taken from the bolster parts after heat treatment of the above properties, and the test results were: yield strength 220MPa, tensile strength 270MPa, elongation 3%. The above heat treatment methods for the corbel beam can ensure that the corbel beam has better comprehensive mechanical properties and meet the des...
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