Stainless steel passivation liquid and passivation technology thereof
A technology of stainless steel and passivation solution, applied in the direction of metal material coating process, etc., can solve the problems of strong corrosiveness, easy pollution and danger, corrosion of stainless steel through grains, incalculable damage to human body, etc., to achieve passivation The effect of good effect, low production cost and easy operation
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Embodiment 1
[0029] 1. Components of passivation solution
[0030] A stainless steel passivation solution, in parts by weight, comprising the following components: 40 parts of inorganic acid, 5 parts of hydrogen peroxide, 8 parts of cyclohexanol, 4 parts of epoxy octyl stearate, 4 parts of acetic anhydride, polyethylene 2 parts of imine, 3 parts of carbo resin, 2 parts of penetrating agent, 1 part of corrosion inhibitor, 10 parts of organic filler.
[0031] Wherein, the inorganic acid is a mixture of formic acid and phosphoric acid in equal amounts.
[0032] Wherein, the penetrating agent is ethylenediamine EO-PO.
[0033] Wherein, the corrosion inhibitor is a mixture of sodium molybdate, sodium metasilicate and p-thiocresol, and the mass ratio between them is 1:1:2.
[0034] Wherein, the organic filler is a mixture of sodium nitrate and barium sulfate in equal amounts.
[0035] 2. Passivation process
[0036] Follow the steps below:
Embodiment 2
[0045] 1. Components of passivation solution
[0046] A stainless steel passivation solution, in parts by weight, comprising the following components: 45 parts of inorganic acid, 10 parts of hydrogen peroxide, 10 parts of cyclohexanol, 6 parts of epoxy octyl stearate, 5 parts of acetic anhydride, polyethylene 3 parts of imine, 4 parts of carbo resin, 3 parts of penetrant, 2 parts of corrosion inhibitor, 15 parts of organic filler.
[0047] Wherein, the inorganic acid is a mixture of three equal amounts of oxalic acid, formic acid and phosphoric acid.
[0048] Wherein, the penetrating agent is ethylenediamine EO-PO.
[0049] Wherein, the corrosion inhibitor is a mixture of sodium metasilicate, sodium borate and p-thiocresol in equal amounts.
[0050] Wherein, the organic filler is a mixture of sodium nitrate, magnesium phosphate and barium sulfate in equal amounts.
[0051] 2. Passivation process
[0052] Follow the steps below:
[0053] (1) Polishing and derusting: use sa...
Embodiment 3
[0061] 1. Components of passivation solution
[0062] A stainless steel passivation solution, in parts by weight, comprising the following components: 50 parts of inorganic acid, 15 parts of hydrogen peroxide, 12 parts of cyclohexanol, 8 parts of epoxy octyl stearate, 6 parts of acetic anhydride, polyethylene 4 parts of imine, 5 parts of carbo resin, 4 parts of penetrant, 3 parts of corrosion inhibitor, 20 parts of organic filler.
[0063] Wherein, the inorganic acid is a mixture of oxalic acid and phosphoric acid in equal amounts.
[0064] Wherein, the penetrating agent is ethylenediamine EO-PO.
[0065] Wherein, the corrosion inhibitor is a mixture of sodium molybdate and sodium metasilicate in equal amounts.
[0066] Wherein, the organic filler is a mixture of sodium nitrate, magnesium phosphate and barium sulfate in equal amounts.
[0067] 2. Passivation process
[0068] Follow the steps below:
[0069] (1) Polishing and derusting: use sandpaper or grinder to polish a...
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