Aluminum foil for cryogenic adiabatic paper and preparation method thereof
A cryogenic insulation, aluminum foil technology, applied in metal rolling, manufacturing tools, temperature control and other directions, can solve the problems affecting the storage and safety of LNG storage tanks, reducing the performance of cryogenic insulation, and being unable to achieve vacuuming. Smaller grains, higher tensile strength, and fewer pinholes
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[0026] Example 1
[0027] This embodiment provides a method for preparing aluminum foil for cryogenic insulation paper, including the following steps:
[0028] Step 1. Put the electrolytic aluminum liquid, high-purity aluminum ingots and alloy regulators into a smelting furnace at a temperature of 718-722°C to prepare an aluminum melt, and perform slagging and degassing treatment on the aluminum melt so that every 100 g The hydrogen content of the aluminum melt is less than or equal to 0.16 mL; wherein the mass percentage of the electrolytic aluminum liquid is 51%, the mass percentage of the high-purity aluminum ingot is 40%, and the balance is an alloy regulator; the high-purity aluminum An ingot refers to an aluminum ingot with an aluminum content of 99.90% to 99.999%; the aluminum melt includes the following components calculated by mass percentage: Fe 0.8%, Si 0.17%, Cu 0.3%, Zn 0.05%, Ti 0.01%, Other impurities alone do not exceed 0.05%, the sum does not exceed 0.15%, and the...
Example Embodiment
[0033] Example 2
[0034] This embodiment provides a method for preparing aluminum foil for cryogenic insulation paper, including the following steps:
[0035] Step 1. Put the electrolytic aluminum liquid, the high-purity aluminum ingot and the alloy regulator into a smelting furnace at a temperature of 722°C to prepare an aluminum melt, and perform slagging and degassing treatment on the aluminum melt so that every 100 g The hydrogen content of the aluminum melt is less than or equal to 0.16 mL; wherein the mass percentage of the electrolytic aluminum liquid is 59%, the mass percentage of the high-purity aluminum ingot is 40%, and the balance is the alloy regulator; the high-purity aluminum ingot is Refers to aluminum ingots with an aluminum content of 99.90% to 99.999%; the aluminum melt includes the following components calculated by mass percentage: Fe1.0%, Si 0.20%, Cu 0.3%, Zn 0.05%, Ti 0.01%, others The single impurity does not exceed 0.05%, the sum does not exceed 0.15%, a...
Example Embodiment
[0040] Example 3
[0041] This embodiment provides a method for preparing aluminum foil for cryogenic insulation paper, including the following steps:
[0042] Step 1. Put the electrolytic aluminum liquid, the high-purity aluminum ingot and the alloy regulator into a smelting furnace at a temperature of 720°C to prepare an aluminum melt, and perform slag and degassing treatment on the aluminum melt so that every 100 g The hydrogen content of the aluminum melt is less than or equal to 0.16mL; wherein the mass percentage of the electrolytic aluminum liquid is 51%, the mass percentage of the high-purity aluminum ingot is 48%, and the balance is the alloy regulator; the high-purity aluminum ingot is Refers to aluminum ingots with an aluminum content of 99.90% to 99.999%; the aluminum melt includes the following components calculated by mass percentage: Fe0.9%, Si 0.185%, Cu 0.15%, Zn 0.05%, Ti 0.01%, others The single impurity does not exceed 0.05%, the sum does not exceed 0.15%, and ...
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