CN104342689A - Preparation method of zinc alloy blackening treatment liquid for lamps - Google Patents
Preparation method of zinc alloy blackening treatment liquid for lamps Download PDFInfo
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- CN104342689A CN104342689A CN201310316871.XA CN201310316871A CN104342689A CN 104342689 A CN104342689 A CN 104342689A CN 201310316871 A CN201310316871 A CN 201310316871A CN 104342689 A CN104342689 A CN 104342689A
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- acid
- water
- solution
- zinc alloy
- carotene
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/46—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing oxalates
- C23C22/47—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing oxalates containing also phosphates
Abstract
The present invention discloses a preparation method of a zinc alloy blackening treatment liquid for lamps. The treatment liquid adopted by the process comprises, by weight, 6-8% of oxalic acid, 7-9% of citric acid, 5-7% of 85% phosphoric acid, 6-8% of sodium chloride, 2-4% of trisodium phosphate, 12-14% of potassium peroxide, 2.5-3.5% of sodium pyrophosphate, 1.0-2.0% of 8-hydroxyquinoline, 11-13% of copper sulfate, 0.5-1.5% of carotene, and the balance of water. The preparation method comprises: taking an appropriate amount of water to dissolve oxalic acid, citric acid and phosphoric acid to prepare a mixed acid solution, taking an appropriate amount of water, sequentially adding sodium chloride, trisodium phosphate, potassium peroxide, sodium pyrophosphate, 8-hydroxyquinoline, copper sulfate and carotene, stirring for 12-16 min to make it uniform, adding the mixed acid solution to the obtained solution, adding the balance of water, and then stirring for 8-10 min.
Description
Technical field
The present invention relates to technical field of surface, particularly relate to a kind of compound method of light fixture zinc alloy blackening process liquid.
Background technology
Zinc and zinc alloy is widely used in light fixture, in order to beautify the outward appearance of zinc alloy light fixture product and meet the requirement of some particular device surface light absorptive, needs zinc alloy surface to be processed into black.
In industrial production traditional at present, in the formula that zinc and zinc alloy surface blackening uses, the overwhelming majority all contains the toxic ingredients such as trivalent chromium, sexavalent chrome, selenium salt, rare metal salts or prussiate, and the health of serious threat operator, causes severe contamination to environment.
CN101283117A provides with acid, neutral, alkaline zinc-plated bath kind and has nothing to do with or without nickel eutectoid, for the formation of the treatment soln of the uniform and stable black 3 valency chromium chemical conversion film of black, glossy appearance and erosion resistance, and forms the method for black 3 valency chromium chemical conversion film.This invention is provided for forming black on the zinc or zinc alloy not containing the treatment soln of the chemical conversion film of 6 valency chromium, and it contains: 3 valency chromium ions; The sequestrant of water soluble complex can be formed with 3 valency chromium; Be selected from more than a kind metal ion in cobalt ion, nickel ion and iron ion; And as the formic acid of hydrogen ion concentration buffer reagent or its salt.
CN102149848A provides the metal part surface to having zinc or zinc alloy surface, give good blackness and rustless property without chromium surface treatment method and the chemical transformation process aqueous solution that can use in this treatment process.This aqueous solution is not containing 3 valencys and 6 valency chromium ions, and in 1 liter of this aqueous solution, the phosphate anion containing 5 ~ 20g, the divalent iron ion of 0.1 ~ 3g, the divalent mn ion of 1 ~ 10g, the nitrate ion of 1 ~ 3g, pH is 1 ~ 3.Metal parts is immersed in this aqueous solution, forms Fe
3o
4black coating film, then form the chemical transformation film of cerium oxide, then form siliceous film.
For reaching state sewage emission standard, surface treatment enterprise must increase input the process of sewage effluent, considerably increases production cost; Major part formula, in blackout process, can produce dust or sediment, adds the intractability of cleaning and hair blackening liquid.
Summary of the invention
The object of the invention is to the compound method proposing a kind of light fixture zinc alloy blackening process liquid, the blackening process liquid of the method preparation, by adjustment to component, does not use chromic salts, chromium can be avoided turn black the defect brought, and blackening effect is good, decorate properties excellence.
For reaching this object, the present invention by the following technical solutions:
A kind of compound method of light fixture zinc alloy blackening process liquid, the composition of this treatment solution is by weight percentage: oxalic acid 6-8%, citric acid 7-9%, 85% phosphoric acid 5-7%, sodium-chlor 6-8%, tertiary sodium phosphate 2-4%, Potassium peroxide 12-14%, trisodium phosphate 2.5-3.5%, oxine 1.0-2.0%, copper sulfate 11-13%, carotene 0.5-1.5%, surplus is water; Described compound method is: get appropriate water dissolution oxalic acid, citric acid and phosphoric acid, prepare mixed acid solution, then appropriate water is being got, add sodium-chlor, tertiary sodium phosphate, Potassium peroxide, trisodium phosphate, oxine, copper sulfate and carotene successively, stirring makes it even in 12-16 minute, then mixed acid solution is added in this solution, and add the water of surplus, then stir 8-10 minute.
Beneficial effect of the present invention is:
The blackening process liquid that the present invention adopts, by adjustment to component, does not use chromic salts, and chromium can be avoided turn black the defect brought, and blackening effect is good, decorate properties excellence, is suitable for the ornamental blackening process of light fixture zinc alloy.
Embodiment
Embodiment one
A kind of compound method of light fixture zinc alloy blackening process liquid, the composition of this treatment solution is by weight percentage: oxalic acid 6%, citric acid 9%, 85% phosphoric acid 5%, sodium-chlor 8%, tertiary sodium phosphate 2%, Potassium peroxide 14%, trisodium phosphate 2.5%, oxine 2.0%, copper sulfate 11%, carotene 1.5%, surplus is water; Described compound method is: get appropriate water dissolution oxalic acid, citric acid and phosphoric acid, prepare mixed acid solution, then appropriate water is being got, add sodium-chlor, tertiary sodium phosphate, Potassium peroxide, trisodium phosphate, oxine, copper sulfate and carotene successively, stirring makes it even in 12 minutes, then mixed acid solution is added in this solution, and add the water of surplus, then stir 10 minutes.
Embodiment two
A kind of compound method of light fixture zinc alloy blackening process liquid, the composition of this treatment solution is by weight percentage: oxalic acid 8%, citric acid 7%, 85% phosphoric acid 7%, sodium-chlor 6%, tertiary sodium phosphate 4%, Potassium peroxide 12%, trisodium phosphate 3.5%, oxine 1.0%, copper sulfate 13%, carotene 0.5%, surplus is water; Described compound method is: get appropriate water dissolution oxalic acid, citric acid and phosphoric acid, prepare mixed acid solution, then appropriate water is being got, add sodium-chlor, tertiary sodium phosphate, Potassium peroxide, trisodium phosphate, oxine, copper sulfate and carotene successively, stirring makes it even in 16 minutes, then mixed acid solution is added in this solution, and add the water of surplus, then stir 8 minutes.
Embodiment three
A kind of compound method of light fixture zinc alloy blackening process liquid, the composition of this treatment solution is by weight percentage: oxalic acid 7%, citric acid 8%, 85% phosphoric acid 6%, sodium-chlor 7%, tertiary sodium phosphate 3%, Potassium peroxide 13%, trisodium phosphate 3.0%, oxine 1.5%, copper sulfate 12%, carotene 1.0%, surplus is water; Described compound method is: get appropriate water dissolution oxalic acid, citric acid and phosphoric acid, prepare mixed acid solution, then appropriate water is being got, add sodium-chlor, tertiary sodium phosphate, Potassium peroxide, trisodium phosphate, oxine, copper sulfate and carotene successively, stirring makes it even in 14 minutes, then mixed acid solution is added in this solution, and add the water of surplus, then stir 9 minutes.
Claims (1)
1. a light fixture compound method for zinc alloy blackening process liquid, is characterized in that, the composition of this treatment solution is by weight percentage: oxalic acid 6-8%, citric acid 7-9%, 85% phosphoric acid 5-7%, sodium-chlor 6-8%, tertiary sodium phosphate 2-4%, Potassium peroxide 12-14%, trisodium phosphate 2.5-3.5%, oxine 1.0-2.0%, copper sulfate 11-13%, carotene 0.5-1.5%, surplus is water; Described compound method is: get appropriate water dissolution oxalic acid, citric acid and phosphoric acid, prepare mixed acid solution, then appropriate water is being got, add sodium-chlor, tertiary sodium phosphate, Potassium peroxide, trisodium phosphate, oxine, copper sulfate and carotene successively, stirring makes it even in 12-16 minute, then mixed acid solution is added in this solution, and add the water of surplus, then stir 8-10 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310316871.XA CN104342689A (en) | 2013-07-25 | 2013-07-25 | Preparation method of zinc alloy blackening treatment liquid for lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310316871.XA CN104342689A (en) | 2013-07-25 | 2013-07-25 | Preparation method of zinc alloy blackening treatment liquid for lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104342689A true CN104342689A (en) | 2015-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310316871.XA Pending CN104342689A (en) | 2013-07-25 | 2013-07-25 | Preparation method of zinc alloy blackening treatment liquid for lamps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104342689A (en) |
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2013
- 2013-07-25 CN CN201310316871.XA patent/CN104342689A/en active Pending
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Application publication date: 20150211 |