Top surrounding type extractor hood
A range hood, top-side technology, which is applied in the field of surrounding top-side range hoods, can solve the problems of only reaching 95%, general range hood effect, and inability to absorb range hood, so as to improve the range hood rate, The effect of high oil fume suction efficiency and comfortable cooking environment
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Embodiment 1
[0036] Take the aluminum alloy material according to the composition and mass percentage in Example 1 in Table 1 to make the oil fume separation plate blank. After heat treatment, the blank is first heated to 450°C, kept for 150 minutes, and then immersed in liquid nitrogen for 50 minutes for cryogenic treatment. After the cryogenic treatment, aging treatment was carried out at a temperature of 120° C. for 10 h. After conventional processing, the final oil fume separation board is made.
Embodiment 2
[0038] Take the aluminum alloy material according to the composition and mass percentage in Example 2 in Table 1 to make the oil fume separation plate blank. After heat treatment, the blank is first heated to 460°C, kept for 130 minutes, and then immersed in liquid nitrogen for 40 minutes for cryogenic treatment. After the cryogenic treatment, aging treatment was carried out at a temperature of 130° C. for 8 hours. After conventional processing, the final oil fume separation board is made.
Embodiment 3
[0040] Take the aluminum alloy material according to the composition and its mass percentage in Example 3 in Table 1 to make the oil fume separation plate blank. After heat treatment, the blank is first heated to 480°C, kept for 120 minutes, and then immersed in liquid nitrogen for 30 minutes for cryogenic treatment. After the cryogenic treatment, aging treatment was carried out at a temperature of 140° C. for 5 hours. After conventional processing, the final oil fume separation board is made.
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