CN104831297A - Chromium-plated part cleaning solution and use method thereof - Google Patents
Chromium-plated part cleaning solution and use method thereof Download PDFInfo
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- CN104831297A CN104831297A CN201510235563.3A CN201510235563A CN104831297A CN 104831297 A CN104831297 A CN 104831297A CN 201510235563 A CN201510235563 A CN 201510235563A CN 104831297 A CN104831297 A CN 104831297A
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Abstract
The invention provides a chromium-plated part cleaning solution. The chromium-plated part cleaning solution is aqueous solution containing sulfuric acid, nitric acid and hydrofluoric acid, and the concentrations of sulfuric acid, nitric acid and hydrofluoric acid are 15-25 ml/L, 45-80 ml/L and 5-20 ml/L, respectively. In use, duster cloth is dipped in the chromium-plated part cleaning solution to wipe the surface of a chromium-plated part, or the chromium-plated part cleaning solution is smeared on the surface of the chromium-plated part and duster cloth wipes the surface of the chromium-plated part, and the chromium-plated part is flushed with clear water for at least twice; the cleaning of the chromium-plated part cleaning solution to the chromium-plated part is more complete, and the chromium corrosion is hardly caused; furthermore, the cleaning cost is low, the operation is simple, the time is saved, the reduction of the labor intensity and the improvement of the working efficiency are facilitated, the safety and the reliability are achieved, the quality of a cleaned work piece is ensured, and the subsequent production is facilitated.
Description
Technical field
The present invention relates to a kind of chemical cleaning solution, particularly a kind of chromium-plated part scavenging solution and using method thereof.
Background technology
After having electroplated, need to clean plating piece surface, to reach the object of clean plating piece remained on surface electroplate liquid.Traditional purging method is multiple tracks washing out method, namely first adopts the wax of ultrasonic wave removing piece surface, and after 2 washings, then adopt concentration to be that the sulfuric acid of 1-2ml/L carries out pickling, pickling is washed through 2 times later again.Adopt this art breading chromium-plated part, the chromic anhydride remaining in chromium-plated part surface cannot clean up, and affects the cleaning performance on chromium-plated part surface.
Chinese invention patent: a kind of electroplating cleaning technique (application number 200810198559.4, notification number CN101358376A), the scavenging solution that this processing method adopted the chromic anhydride of 3-20 and the sulfuric acid of 2-3ml/L to mix before original plating acid cleaning process carries out foam washing to part, the chromic anhydride of plated item remained on surface is cleaned up, the sticking power of electroplated coating can also be made better.But the method step is various, troublesome poeration, take time and effort, particularly for the plating piece that volume is larger, its mixed solution foam washing with chromic anhydride and sulfuric acid and ultrasonication not only operate inconvenience, and weak effect.How preparing that a kind of composition is simple, cleaning performance good and the simple chromium-plated part scavenging solution of cleaning operation, is the problem needing at present to solve.
Summary of the invention
For overcoming the defect of prior art, the present invention is intended to propose that a kind of cleaning performance is good, the simple chromium-plated part scavenging solution of cleaning operation.
Technical scheme of the present invention is achieved in that
A kind of chromium-plated part scavenging solution, this chromium-plated part scavenging solution is the aqueous solution containing sulfuric acid, nitric acid and hydrofluoric acid, and the concentration of each component is respectively: sulfuric acid 15-30ml/L, nitric acid 45-80ml/L and hydrofluoric acid 5-20ml/L.
The chromium-plated part cleaning fluid composition that the present invention proposes is the mixture of three kinds of strong acid, chromic anhydride residual on plating piece can be cleared up fast, cleaning performance is high, chromium coating inerting can also be made to produce dense oxidation film, improve the chemical stability of chromium coating and the sticking power of chromium coating.Confirm through many experiments: sulfuric acid 15-30ml/L, nitric acid 45-80ml/L and hydrofluoric acid 5-20ml/L, the cleaning performance of products obtained therefrom is good, and chromium corrosion is fallen in less generation.
Preferred further, the concentration of each component is respectively sulfuric acid 20-25ml/L, nitric acid 55-65ml/L and hydrofluoric acid 8-12ml/L.
More preferred, the concentration of each component is respectively sulfuric acid 22ml/L, nitric acid 60ml/L and hydrofluoric acid 10ml/L.
The present invention also proposes a kind of using method of chromium-plated part scavenging solution, and pick above-mentioned chromium-plated part scavenging solution wiping chromium-plated part surface with rag or use rag wiping after above-mentioned chromium-plated part scavenging solution is spread upon chromium-plated part surface, clear water rinses at least 2 times afterwards.
Compared with prior art, the cleaning of chromium-plated part scavenging solution to chromium-plated part that the present invention proposes is more thorough, chromium corrosion is fallen in less generation, and cleaning cost low, simple to operate, save time, be conducive to reducing labour intensity and increasing work efficiency, safe and reliable, ensure that the quality of the workpiece after cleaning, be convenient to subsequent production.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described technical scheme of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In following examples, the compound method of chromium-plated part scavenging solution is: in a certain amount of water, add the sulfuric acid of set amount, nitric acid and hydrofluoric acid under room temperature, stir while interpolation, order of addition no requirement (NR).
Embodiment 1
A kind of chromium-plated part scavenging solution, it is the aqueous solution containing sulfuric acid, nitric acid and hydrofluoric acid, and the concentration of each component is respectively: sulfuric acid 15ml/L, nitric acid 55ml/L and hydrofluoric acid 10ml/L.
Embodiment 2
A kind of chromium-plated part scavenging solution, it is the aqueous solution containing sulfuric acid, nitric acid and hydrofluoric acid, and the concentration of each component is respectively: sulfuric acid 20ml/L, nitric acid 60ml/L and hydrofluoric acid 12ml/L.
Embodiment 3
A kind of chromium-plated part scavenging solution, it is the aqueous solution containing sulfuric acid, nitric acid and hydrofluoric acid, and the concentration of each component is respectively: sulfuric acid 22ml/L, nitric acid 55ml/L and hydrofluoric acid 20ml/L.
Embodiment 4
A kind of chromium-plated part scavenging solution, it is the aqueous solution containing sulfuric acid, nitric acid and hydrofluoric acid, and the concentration of each component is respectively: sulfuric acid 25ml/L, nitric acid 80ml/L and hydrofluoric acid 5ml/L.
Embodiment 5
A kind of chromium-plated part scavenging solution, it is the aqueous solution containing sulfuric acid, nitric acid and hydrofluoric acid, and the concentration of each component is respectively: sulfuric acid 30ml/L, nitric acid 45ml/L and hydrofluoric acid 8ml/L.
Embodiment 6
A kind of chromium-plated part scavenging solution, it is the aqueous solution containing sulfuric acid, nitric acid and hydrofluoric acid, and the concentration of each component is respectively: sulfuric acid 22ml/L, nitric acid 60ml/L and hydrofluoric acid 10ml/L.
The product of above-described embodiment gained is more thorough to the cleaning of chromium-plated part, cleaning operation simple and effective, chromium corrosion is fallen in less generation, and cleaning cost low, save time, be conducive to reducing labour intensity and increasing work efficiency, safe and reliable, ensure that the quality of the workpiece after cleaning, be convenient to subsequent production.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a chromium-plated part scavenging solution, is characterized in that: described chromium-plated part scavenging solution is the aqueous solution containing sulfuric acid, nitric acid and hydrofluoric acid, and the concentration of each component is respectively: sulfuric acid 15-30ml/L, nitric acid 45-80ml/L and hydrofluoric acid 5-20ml/L.
2. chromium-plated part scavenging solution according to claim 1, is characterized in that: the concentration of each component is respectively sulfuric acid 20-25ml/L, nitric acid 55-65ml/L and hydrofluoric acid 8-12ml/L.
3. chromium-plated part scavenging solution according to claim 2, is characterized in that: the concentration of each component is respectively sulfuric acid 22ml/L, nitric acid 60ml/L and hydrofluoric acid 10ml/L.
4. the using method of the chromium-plated part scavenging solution as described in any one of claim 1-3, it is characterized in that: pick described chromium-plated part scavenging solution wiping chromium-plated part surface with rag or use rag wiping after described chromium-plated part scavenging solution is spread upon chromium-plated part surface, clear water rinses at least 2 times afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510235563.3A CN104831297A (en) | 2015-05-08 | 2015-05-08 | Chromium-plated part cleaning solution and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510235563.3A CN104831297A (en) | 2015-05-08 | 2015-05-08 | Chromium-plated part cleaning solution and use method thereof |
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| CN104831297A true CN104831297A (en) | 2015-08-12 |
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| CN201510235563.3A Pending CN104831297A (en) | 2015-05-08 | 2015-05-08 | Chromium-plated part cleaning solution and use method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779884A (en) * | 2017-11-03 | 2018-03-09 | 中信锦州金属股份有限公司 | A kind of cleaning method of crome metal piece |
| CN110756468A (en) * | 2019-10-25 | 2020-02-07 | 苏师大半导体材料与设备研究院(邳州)有限公司 | Cleaning method of electronic component |
-
2015
- 2015-05-08 CN CN201510235563.3A patent/CN104831297A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779884A (en) * | 2017-11-03 | 2018-03-09 | 中信锦州金属股份有限公司 | A kind of cleaning method of crome metal piece |
| CN107779884B (en) * | 2017-11-03 | 2019-10-08 | 中信锦州金属股份有限公司 | A kind of cleaning method of crome metal piece |
| CN110756468A (en) * | 2019-10-25 | 2020-02-07 | 苏师大半导体材料与设备研究院(邳州)有限公司 | Cleaning method of electronic component |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150812 |
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| WD01 | Invention patent application deemed withdrawn after publication |