A kind of long-life aluminum and its alloy degreasing activation solution and its application
A long-life, solution technology, applied in the field of metal surface treatment, which can solve the problems of difficult cleaning, lack of leveling ability, and increased cost.
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Embodiment 1
[0052] Part name: aluminum alloy blade of a compressor, material grade: LD2 aluminum alloy
[0053] Composition and process parameters of degreasing and activating bath solution:
[0054]
[0055]
[0056] The composition of Additive 1 is as follows:
[0057]
[0058] The application of a long-life aluminum and its alloy degreasing activation solution is carried out according to the following steps: Add the additive 1 involved in the present invention to the original 25-35g / L sodium hydroxide solution, and the working temperature is 45-60°C , the activation time of aluminum alloy parts in it is 5 minutes; after leaving the tank, the parts should be rinsed in hot water for 1 to 2 minutes; then cleaned in flowing cold water; after that, follow-up anodic oxidation or other coating processing can be carried out according to the normal process .
[0059] Reach dynamic equilibrium when aluminum ion accumulates to 130 grams in this bath solution. That is, the total amount...
Embodiment 2
[0062] Part name: Material grade: LD316063 aluminum alloy is a low alloyed Al-Mg-Si series high plasticity alloy
[0063] Composition and process parameters of degreasing and activating bath solution:
[0064]
[0065] The composition of Additive 2 is as follows:
[0066]
[0067]
[0068] The application of a long-life aluminum and its alloy degreasing activation solution is carried out according to the following steps: in the original sodium hydroxide solution, add 5-7 g / L of the additive involved in the present invention, the working temperature is 55-60 ° C, the aluminum The alloy parts are activated in it for 5 minutes; after leaving the tank, the parts should be rinsed in hot water for 1-2 minutes; then cleaned in flowing cold water; after that, subsequent anodic oxidation or other coating processes can be carried out according to the normal process.
[0069] The bath solution reaches a dynamic equilibrium when the aluminum ions accumulate to 138-140 g / L. That...
Embodiment 3
[0072] Part name: Material grade: 3A21 aluminum alloy (imitation stainless steel color) aluminum alloy for engine accessories
[0073] Composition and process parameters of degreasing and activating bath solution:
[0074]
[0075] The composition of Additive 3 is as follows:
[0076]
[0077]
[0078] The application of a long-life aluminum and its alloy degreasing activation solution is carried out according to the following steps: add the additive 3 involved in the present invention to the original sodium hydroxide solution, the working temperature is 45-60 °C, and the aluminum alloy parts are in it The activation time is 3 minutes; after leaving the tank, the parts should be rinsed in hot water for 1-2 minutes; then cleaned in flowing cold water; after that, follow-up anodic oxidation or other coating processes can be carried out according to the normal process.
[0079] The bath solution reaches a dynamic equilibrium when the aluminum ions accumulate to 138-140 ...
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