Chemical milling solution and chemical milling method thereof
A solution and chemical milling technology, which is applied in the aerospace field, can solve problems such as uneven corrosion, affecting product appearance processing, roughness and orange peel, etc., and achieves the effect of stable solution properties and simple preparation
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Embodiment 1~3
[0022] The bath composition of each embodiment is shown in the following table:
[0023] bath composition
Embodiment 1 formula (g / L)
Embodiment 2 formula (g / L)
Embodiment 3 formula (g / L)
NaOH
120~150
120~150
120~150
Al 3+
30
30
30
0
10
10
10
10
10
15
20
30
[0024] The experimental results are shown in the table below:
[0025]
Embodiment 4
[0027] Chemical milling solution formula: NaOH 120~150g / L, Al 3+ 30g / L, potassium sodium tartrate 10g / L, sodium thiosulfate 10g / L, sodium sulfide 30g / L.
[0028] Adopt above-mentioned formula to carry out two groups of parallel tests, test result is shown in the following table:
[0029]
[0030] The melon petals have no roughness after chemical milling, and the surface is smooth without orange peel. The surface roughness has reached Ra6.3 after comparison.
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