CN101638783B - Brass chemical polishing solution and preparation method thereof - Google Patents
Brass chemical polishing solution and preparation method thereof Download PDFInfo
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- CN101638783B CN101638783B CN2009101123949A CN200910112394A CN101638783B CN 101638783 B CN101638783 B CN 101638783B CN 2009101123949 A CN2009101123949 A CN 2009101123949A CN 200910112394 A CN200910112394 A CN 200910112394A CN 101638783 B CN101638783 B CN 101638783B
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Abstract
The invention discloses a brass chemical polishing solution and a preparation method thereof, and one liter of the polishing solution contains 60-140g of persulfate, 200-350ml of 92.5 wt%-98.0 wt% concentrated sulfuric acid, 0-60ml of 85.0wt% strong phosphoric acid, 1-10g of citric acid, 2-10g of 7.H2O ferrous sulfate, 0-3g of sodium chloride, 0-6g of urea, 0.2-1.0g of sodium lauryl sulfate and balance of water. The invention adopts persulfate (kalium, sodium, ammonium and the like) as an oxidant to replace strong nitric acid, hydrogen peroxide and the like adopted for traditional chemical polishing, avoiding using the oxidant harmful to the environment and generating nitrogen oxide gas with strong toxicity for humans in the prior art; the brass chemical polishing solution has the characteristics of environmental protection, more stability (greatly improved by being compared with the stability of a hydrogen peroxide polishing solution), high polishing speed, good polishing effect andthe like. The brass polished through the brass chemical polishing solution has a flat and smooth surface and golden appearance.
Description
Technical field
The present invention relates to metal surface treatment chemical polishing field, specifically is brass chemical polishing solution and compound method thereof.
Background technology
Brass (copper mass content is 65%～85%) is a kind of widely used metallic substance in production such as haberdashery and hardware, artwork, electrical instrumentation and mechanical fittings.Generally to just can reach ornamental outward appearance through polished finish.Compare with mechanical polishing and electrochemical etching, the great advantage of chemical rightenning is not need to use power supply, can carry out art breading to the goods complex-shaped, that material is different, is particularly suitable for the little component of complex geometry, and polishing uniformity is good; Equipment and simple to operate, less investment, adaptability is strong; Can polish many workpiece simultaneously, be fit to produce in batches, be mainly used in the decorative machining of workpiece; Has energy-conservation, less investment, the characteristics that cost is low, production efficiency is high.
The main type of brass chemical polishing has (according to the oxygenant classification) at present: (1) nitric acid and its esters, though this type of polishing technology cost is low, polishing effect is good, but this solution can produce a large amount of oxynitride (being commonly called as " tobacco ") in operating process, this oxynitride pollutes environment, grievous injury operator's health though there are research and development to suppress the additive of " tobacco ", still can produce very malicious " tobacco ".This method polishing of main at present employing brass.(2) dichromic acid and its esters owing to use sexavalent chrome, cause that serious environmental pollutes, so such finishing method do not use substantially, and the cost height, so industrial application is fewer and feweri.(3) hydroperoxide kind, though there is not environmental pollution, but hydrogen peroxide instability, particularly metal ion such as dissolved copper has the intensive katalysis to the decomposition of hydrogen peroxide in the polishing process, even in this polishing fluid, add under the situation of stablizer, the polishing fluid life-span that contains hydrogen peroxide is not long yet, and meeting is acutely decomposed and polishing fluid was lost efficacy, and cost is higher.
Summary of the invention
The purpose of this invention is to provide a kind of pollution-free and stable brass chemical polishing solution preferably.
Another object of the present invention provides a kind of method of preparing above-mentioned brass chemical polishing solution.
Technical scheme of the present invention is such: brass chemical polishing solution, contain in every liter of polishing fluid: persulphate 60～140g, 92.5 the vitriol oil 200～350ml of～98.0wt%, strong phosphoric acid 0～60ml of 85.0wt%, citric acid 1～10g, the ferrous sulfate 2～10g of seven Heshuis, sodium-chlor 0～3g, urea 0～6g, sodium lauryl sulphate 0.2～1.0g, surplus is a water; Above-mentioned persulphate is Potassium Persulphate, Sodium Persulfate or ammonium persulphate.
The compound method of brass chemical polishing solution, the polishing fluid of preparing 1 liter is achieved by the following scheme: the water of preparing 400～600ml, in this water, add the 92.5wt%～98.0wt% vitriol oil 200～350ml and 85.0wt% strong phosphoric acid 0～60ml, fully stir, obtain acid solution, and this acid solution is cooled to below 40 ℃; Ferrous sulfate 2～10g, the sodium-chlor 0～3g, urea 0～6g and the sodium lauryl sulphate 0.2～1.0g that in this acid solution, add citric acid 1～10g, seven Heshuis then; Add persulphate 60～140g after the stirring and dissolving again, fully stir, obtain final mean annual increment solution, add adding water to 1 liter in this final mean annual increment solution, just obtain brass chemical polishing solution of the present invention; Above-mentioned persulphate is Potassium Persulphate, Sodium Persulfate or ammonium persulphate.
After adopting such scheme, brass chemical polishing solution of the present invention, the oxygenant that adopts is persulfuric acid hydrochlorate (potassium, sodium, an ammonium etc.), the concentrated nitric acid that the polishing of replacement traditional chemical is adopted, hydrogen peroxide etc., avoided using environmentally harmful oxygenant in the prior art and producing the oxides of nitrogen gas very strong, had environmental friendliness people's toxicity, pollution-free, polishing fluid is stable (having significant improvement than hydroperoxide kind polishing fluid stability), and polishing velocity is fast, and (polishing velocity can reach 4mgcm
-2Min
-1), characteristics such as polishing effect is good.Brass surfaces after the polishing fluid of the application of the invention polishes is smooth smooth, smooth, does not have the corner angle burr, golden appearance.Especially be fit to the polishing of brass teeth zipper tooth, polishing back strap do not fade (and also do not fade 150 ℃ of following temperature oven dry).
Embodiment
Embodiment one:
Brass chemical polishing solution of the present invention contains in every liter of polishing fluid: persulphate 130g, the vitriol oil 250ml of 98wt%, the strong phosphoric acid 40ml of 85wt%, citric acid 5g, the ferrous sulfate 7g of seven Heshuis, sodium-chlor 1g, urea 2g, sodium lauryl sulphate 0.5g, surplus is a water.
The compound method of brass chemical polishing solution of the present invention, the polishing fluid of preparing 1 liter is achieved by the following scheme: the water of preparing 400～600ml, in this water, add 98wt% vitriol oil 250ml and 85wt% strong phosphoric acid 40ml, fully stir, obtain the mixed acid solution of sulfuric acid and phosphoric acid, and this mixed acid solution is cooled to below 40 ℃; In this mixed acid solution, add citric acid 5g then, the ferrous sulfate 7g of seven Heshuis, sodium-chlor 1g, urea 2g and sodium lauryl sulphate 0.5g are stirred well to dissolving; Add persulphate 130g again, fully stir again, obtain final mean annual increment solution, add that to add water to cumulative volume be 1 liter in this final mean annual increment solution, stir, just obtain brass chemical polishing solution of the present invention.
Wherein, persulphate is Potassium Persulphate, Sodium Persulfate, ammonium persulphate etc.
Embodiment two:
Brass chemical polishing solution of the present invention contains in every liter of polishing fluid: persulphate 130g, the vitriol oil 263ml of 93wt%, the strong phosphoric acid 40ml of 85wt%, citric acid 5g, the ferrous sulfate 7g of seven Heshuis, sodium-chlor 1g, urea 2g, sodium lauryl sulphate 0.5g, surplus is a water.
The compound method of brass chemical polishing solution of the present invention, the polishing fluid of preparing 1 liter is achieved by the following scheme: the water of preparing 400～600ml, in this water, add 93wt% vitriol oil 263ml and 85wt% strong phosphoric acid 40ml, fully stir, obtain the mixed acid solution of sulfuric acid and phosphoric acid, and this mixed acid solution is cooled to below 40 ℃; In this mixed acid solution, add citric acid 5g then, the ferrous sulfate 7g of seven Heshuis, sodium-chlor 1g, urea 2g and sodium lauryl sulphate 0.5g are stirred well to dissolving; Add persulphate 130g again, fully stir again, obtain final mean annual increment solution, add that to add water to cumulative volume be 1 liter in this final mean annual increment solution, stir, just obtain brass chemical polishing solution of the present invention.
Wherein, persulphate is Potassium Persulphate, Sodium Persulfate, ammonium persulphate etc.
Embodiment three:
Brass chemical polishing solution of the present invention contains in every liter of polishing fluid: persulphate 60g, and the vitriol oil 200ml of 98wt%, citric acid 1g, the ferrous sulfate 2g of seven Heshuis, sodium lauryl sulphate 0.2g, surplus is a water.
The compound method of brass chemical polishing solution of the present invention, the polishing fluid of preparing 1 liter is achieved by the following scheme: prepare the water of 400～600ml, add 98wt% vitriol oil 200ml in this water, fully stir, obtain sulphuric acid soln, and this sulphuric acid soln is cooled to below 40 ℃; In this sulphuric acid soln, add the ferrous sulfate 2g and the sodium lauryl sulphate 0.2g of citric acid 1g, seven Heshuis then, be stirred well to dissolving; Add persulphate 60g again, fully stir again, obtain final mean annual increment solution, add that to add water to cumulative volume be 1 liter in this final mean annual increment solution, stir, just obtain brass chemical polishing solution of the present invention.
Wherein, persulphate is Potassium Persulphate, Sodium Persulfate, ammonium persulphate etc.
Embodiment four:
Brass chemical polishing solution of the present invention contains in every liter of polishing fluid: persulphate 140g, the vitriol oil 350ml of 98wt%, the strong phosphoric acid 60ml of 85wt%, citric acid 10g, the ferrous sulfate 10g of seven Heshuis, sodium-chlor 3g, urea 6g, sodium lauryl sulphate 1g, surplus is a water.
The compound method of brass chemical polishing solution of the present invention, the polishing fluid of preparing 1 liter is achieved by the following scheme: the water of preparing 400～600ml, in this water, add 98wt% vitriol oil 350ml and 85wt% strong phosphoric acid 60ml, fully stir, obtain the mixed acid solution of sulfuric acid and phosphoric acid, and this mixed acid solution is cooled to below 40 ℃; In this mixed acid solution, add citric acid 10g then, the ferrous sulfate 10g of seven Heshuis, sodium-chlor 3g, urea 6g and sodium lauryl sulphate 1g are stirred well to dissolving; Add persulphate 140g again, fully stir again, obtain final mean annual increment solution, add that to add water to cumulative volume be 1 liter in this final mean annual increment solution, stir, just obtain brass chemical polishing solution of the present invention.
Wherein, persulphate is Potassium Persulphate, Sodium Persulfate, ammonium persulphate etc.
Utilize the technology of brass chemical polishing solution of the present invention polishing brass to be: earlier with brass 70～80 ℃ of waters bath with thermostatic control carry out alkaline degreasing 3～5 minutes, be washed to and do not hang the globule then; To in 20～65 ℃ of waters bath with thermostatic control, adopt chemical brightening solution polishing of the present invention 0.5～2.0 minute through the brass of above pre-treatment, polishing process will carry out medium tenacity to solution and stir (about 500～1500 rev/mins, machinery or pressurized air), taking-up brass is washed immediately, oven dry at last gets final product.
Claims (2)
1. brass chemical polishing solution, it is characterized in that: contain in every liter of polishing fluid: persulphate 60～140g, 92.5 the vitriol oil 200～350ml of～98.0wt%, strong phosphoric acid 0～60ml of 85.0wt%, citric acid 1～10g, the ferrous sulfate 2～10g of seven Heshuis, sodium-chlor 0～3g, urea 0～6g, sodium lauryl sulphate 0.2～1.0g, surplus is a water; Above-mentioned persulphate is Potassium Persulphate, Sodium Persulfate or ammonium persulphate.
2. the compound method of brass chemical polishing solution, it is characterized in that: the polishing fluid of preparing 1 liter is achieved by the following scheme: the water of preparing 400～600ml, in this water, add the 92.5wt%～98.0wt% vitriol oil 200～350ml and 85.0wt% strong phosphoric acid 0～60ml, fully stir, obtain acid solution, and this acid solution is cooled to below 40 ℃; Ferrous sulfate 2～10g, the sodium-chlor 0～3g, urea 0～6g and the sodium lauryl sulphate 0.2～1.0g that in this acid solution, add citric acid 1～10g, seven Heshuis then; Add persulphate 60～140g after the stirring and dissolving again, fully stir, obtain final mean annual increment solution, add adding water to 1 liter in this final mean annual increment solution, just obtain brass chemical polishing solution of the present invention; Above-mentioned persulphate is Potassium Persulphate, Sodium Persulfate or ammonium persulphate.
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| CN2009101123949A CN101638783B (en) | 2009-08-04 | 2009-08-04 | Brass chemical polishing solution and preparation method thereof |
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| CN2009101123949A CN101638783B (en) | 2009-08-04 | 2009-08-04 | Brass chemical polishing solution and preparation method thereof |
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| CN101638783A CN101638783A (en) | 2010-02-03 |
| CN101638783B true CN101638783B (en) | 2011-08-31 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051620A (en) * | 2010-11-24 | 2011-05-11 | 温州奥洋金属表面处理有限公司 | Polishing solution for replacing copper pickling process to process surface of copper and copper alloy |
| CN102140639B (en) * | 2011-04-19 | 2014-04-23 | 森鹤乐器股份有限公司 | Deposited metal stripping agent and preparation method thereof |
| CN102330098B (en) * | 2011-08-31 | 2014-01-29 | 东莞市富默克化工有限公司 | Surface treating agent for quickly increasing surface roughness and deoxidizing for circuit board |
| CN102758196A (en) * | 2012-07-13 | 2012-10-31 | 东莞市东辉贸易有限公司 | Brass gold color dyeing solution and preparation method thereof as well as method for dyeing gold color on brass |
| CN103757636B (en) * | 2014-01-07 | 2016-06-22 | 华南理工大学 | A kind of chemical polishing solution and alloy surface polishing method |
| CN104562019B (en) * | 2015-01-09 | 2017-04-12 | 西南石油大学 | Environment-friendly acidic chemical polishing solution and chemical polishing method |
| CN104911608B (en) * | 2015-04-30 | 2017-10-03 | 深圳市联星服装辅料有限公司 | Metal zip fastener with two-sided color effects and preparation method thereof |
| CN106086908B (en) * | 2016-07-19 | 2018-08-24 | 东莞市凯盟表面处理技术开发有限公司 | A kind of copper material pickling polishing fluid and preparation method thereof and application method |
| CN108624237B (en) * | 2017-03-21 | 2021-01-26 | 上海铝通化学科技有限公司 | Chemical grinding and polishing solution and grinding and polishing method |
| CN107267993B (en) * | 2017-05-25 | 2020-06-23 | 广西大学 | Hydrogen peroxide system polishing solution and method for polishing THGEM film in hydrogen peroxide system polishing solution |
| WO2019006669A1 (en) * | 2017-07-04 | 2019-01-10 | 深圳市恒兆智科技有限公司 | Polishing agent, stainless steel part and polishing process therefor |
| CN115011258A (en) * | 2022-07-20 | 2022-09-06 | 黄河三角洲京博化工研究院有限公司 | Double-component polishing solution, preparation method thereof and silicon wafer polishing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA840990A (en) * | 1970-05-05 | Furukawa Hideyuki | Electrolytic polishing |
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2009
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA840990A (en) * | 1970-05-05 | Furukawa Hideyuki | Electrolytic polishing |
Non-Patent Citations (2)
| Title |
|---|
| 张三元.用H2O2-H2SO4混合液酸洗或化学抛光铜及铜合金.《电镀与精饰》.1983,(第2期),21-27. * |
| 李贤成.无烟黄铜化学抛光实用技术.《材料保护》.2008,第41卷(第11期),57-58. * |
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Assignee: Yangzhou Anyi Valve Co., Ltd. Assignor: Huaqiao University Contract record no.: 2012320000531 Denomination of invention: Brass chemical polishing solution and preparation method thereof Granted publication date: 20110831 License type: Exclusive License Open date: 20100203 Record date: 20120424 |
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