CN101768746A - Cleaning agent special for stainless steel and preparation method and application thereof - Google Patents
Cleaning agent special for stainless steel and preparation method and application thereof Download PDFInfo
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- CN101768746A CN101768746A CN200810246657A CN200810246657A CN101768746A CN 101768746 A CN101768746 A CN 101768746A CN 200810246657 A CN200810246657 A CN 200810246657A CN 200810246657 A CN200810246657 A CN 200810246657A CN 101768746 A CN101768746 A CN 101768746A
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Abstract
The invention provides a cleaning agent special for stainless steel. The cleaning agent has no corrosive effect on the base, is environmentally friendly and can be reused multiple times. The cleaning agent is mainly used for cleaning various stainless steel, has quick and effective cleaning effect on the oil, dirt, welding slag, corrosion products and oxides generated at high temperature on the surface of the stainless steel under the condition that the temperature is not higher than 60 DEG C and ensures the stainless steel to have shiny surface. The cleaning agent is prepared by the following components in percentage by mass: 10-40% of phosphoric acid, 2-10% of oxalic acid, 0.1-5% of triethanolamine oleate, 1-10% of alcohol-ester solvents and the balance water. The mass percentage of the above components totals 100%. The cleaning method comprises scrubbing and circular washing. The cleaning solution can be recycled and reused, thus lowering the cost and reducing the pollution.
Description
Technical field:
The present invention relates to a kind of cleaning agent special for stainless steel and preparation method thereof, belong to the metallic surface and clean the field, be specifically related to the surface cleaning of stainless material.
Background technology:
China's stainless steel industry development in recent years is very fast, less than the time output of steels in 10 years more than 600 ten thousand tons from more than 20 ten thousand tondals to 2007 in 1998 year.Stainless steel has premium propertiess such as good mechanical intensity, wear resistance, solidity to corrosion and easy processing, is widely used in industries such as petrochemical complex, light industry household electrical appliances, machinofacture, boats and ships vehicle and building decoration.
Stainless steel is not definitely stainless, on the one hand, stainless steel part mostly is to process through high temperature operations such as hot rolling, forging, casting, thermal treatment, welding, and the surface can produce thicker oxide skin in the course of processing, and the overheated blueness weldering spot that causes of welding is left on the surface; On the other hand, the stainless steel long-term exposure is in air or through after the use of certain hour, dust or grease etc. is attached on the surface, forms the thin and fine and close oxide film of one deck at stainless steel surface generation chemical transformation, and its main component is chromic oxide (Cr
2O
3), nickel oxide (NiO), and the oxidation siderochrome (FeOCr of indissoluble
2O
3).When oxide skin that exists through various processing treatment rear surface when stainless steel or evidence of oxide, its solidity to corrosion can reduce greatly, and this has not only influenced outward appearance, has more influenced the quality of next process.For the ease of carrying out smoothly of follow-up surface treatment procedure, must remove above-mentioned surface mass.
At present, mainly contain nitric acid with the clean-out system of removing Stainless Steel Watch surface oxidized skin and dirt and add hydrofluoric acid clean agent, hydrogen peroxide clean-out system.Adopt nitric acid to add zone of oxidation and dirt that hydrofluoric acid clean technology can be removed stainless steel surface within a short period of time, but the stainless steel surface that adopts hydrofluoric acid and nitric acid to clean easily turn white or turn black, and has influenced the visual effect of equipment; Secondly, use hydrofluoric acid and nitric acid in cleaning process, easily to produce obnoxious flavour, have a strong impact on the healthy of operator; The shortcoming that adopts hydrogen peroxide to clean is that hydrogen peroxide causes scavenging solution instability, in use very fast inefficacy easy the decomposition.Also there is minority producer to adopt soda processes to remove oxide layer on stainless steel surface both at home and abroad, stainless steel is immersed in the fused caustic soda is heated to more than 600 ℃, remove zone of oxidation in conjunction with pickling again.But adopt this method cleaning interval long, scavenging period is also longer.
Summary of the invention:
The present invention seeks to avoid the prior art deficiency, providing a kind of can be lower than under 60 ℃, especially under the normal temperature, removes the clean-out system of stainless steel surface greasy dirt, corrosion and high temperature scale.
Purpose of the present invention is realized by cleaning agent special for stainless steel, this cleaning agent special for stainless steel is prepared from by containing following raw materials by weight percentage: 10～40% phosphoric acid, 2～10% oxalic acid, 0.1～5% triethanolamine oleate, 1～5% pure ether solvent, all the other are water, and the mass percent sum of above-mentioned each component is 100%.The content of preferably phosphoric acid is 10～30%, and the content of oxalic acid is 3～5%, and pure ether solvent is preferably the Diethylene Glycol butyl ether.
The preparation method who is suitable for cleaning agent special for stainless steel of the present invention comprises the steps: that a. takes by weighing raw material according to getting raw material ratio; B. after earlier in water, oxalic acid being dissolved into clear solution, again to wherein adding triethanolamine oleate and pure ether solvent, stirring and dissolving; C. add phosphoric acid, promptly get scavenging solution after mixing.
Another object of the present invention provides the method that a kind of cleaning agent special for stainless steel cleans stainless material, is included in to be lower than under 60 ℃, especially under the normal temperature, cleans or circulates and wash.
Another object of the present invention provides the application that a kind of cleaning agent special for stainless steel is used for the surface cleaning of stainless material.
Phosphoric acid of the present invention is not less than 80% technical grade for working substance content, phosphoric acid belongs to a kind of middle strong acid, at normal temperatures, concentration reaches at 75% o'clock, therefore stainless corrosion rate still is lower than 0.0025mm/a, adopts high concentrations of phosphoric acid to remove stainless steel surface and has guaranteed in cleaning performance stainless steel base corrosion under the situation preferably.In addition, phosphoric acid also has phosphorization to stainless steel surface, guarantees that surface-brightening does not have anti-rust phenomenon after playing cleaning.
Adopt oxalic acid among the present invention, owing to contain two carboxyls in the oxalic acid molecule, also belong to a kind of middle strong acid, it can with metallic iron, calcium, magnesium coordination, it also has good solvency action to the oxide compound of iron, it has the adding of sequestering action oxalic acid not only to improve cleaning performance greatly again to calcium metal, magnesium simultaneously, has also improved the anti-hard water ability of scavenging solution simultaneously.The adding of triethanolamine oleate and pure ether solvent mainly is to remove the grease of stainless steel surface etc.
The invention has the beneficial effects as follows:
1. the present invention's any in the strong acid such as hydrofluoric acid containing, sulfuric acid, hydrochloric acid not, operation hazardness is extremely low.
2. the present invention need not add inhibiter in addition, is zero to the corrosion rate of various stainless steel bases.
3. technology of the present invention is simple, grease, corrosion and high temperature weldering spot can be removed simultaneously, cleans the rear surface light.
4. resistance to hard water of the present invention is strong, and the water in the prescription can be without distilled water.
5. recyclable the recycling of clean-out system of the present invention reduces cost, and reduces and pollutes.
Description of drawings:
Fig. 1 is the purging method schematic flow sheet of a kind of cleaning agent special for stainless steel of the present invention.
Embodiment:
Embodiment one: the cleaning of stainless steel pipeline
The clean-out system proportioning: phosphatase 11 0%, oxalic acid 3%, triethanolamine oleate 0.5%, Diethylene Glycol butyl ether 5%, all the other are water; Liquid pool: acid-resistant systems such as plastics or stainless material;
Cleaning way: wash cycles (seeing accompanying drawing 1);
Concrete operations: be lower than under 60 ℃, with scavenging solution wash cycles 1h～2h in equipment installation;
Cleaning performance: corrosion rate is zero; The pipeline inwall presents shinny stainless steel gloss, and no greasy dirt is residual.
Embodiment two: the stainless steel weld ell cleans
The clean-out system proportioning: phosphoric acid 30%, oxalic acid 5%, triethanolamine oleate 0.5%, Diethylene Glycol butyl ether 5%, all the other are water;
Soda liquor container: acid-resistant systems such as plastics or stainless material;
Cleaning way: the artificial scouring;
Concrete practical operation is done: at room temperature, use rag or brush is smeared and material surface, make scavenging solution rest on surface 10 to 20 minutes, dry with clean rag water flushing back;
Cleaning performance: corrosion rate is zero; The weld high temperature scale comes off, and whole elbow surface presents shinny stainless steel gloss, and no greasy dirt is residual.
Claims (8)
1. cleaning agent special for stainless steel, form by the raw material of following mass percent:
Phosphatase 11 0～40%, oxalic acid 2～10%, triethanolamine oleate 0.1～5%, pure ether solvent 1～5%, all the other are water, the mass percent sum of above-mentioned each component is 100%.
2. cleaning agent special for stainless steel according to claim 1, wherein phosphatase 11 0～30% and oxalic acid 3～5%.
3. cleaning agent special for stainless steel according to claim 1 and 2, wherein pure ether solvent is Diethylene Glycol butyl ether and butyl glycol ether.
4. according to the preparation method of the arbitrary described cleaning agent special for stainless steel of claim 1～3, comprise the steps:
A. take by weighing raw material according to getting raw material ratio;
B. after earlier in water, oxalic acid being dissolved into clear solution, again to wherein adding triethanolamine oleate and pure ether solvent, stirring and dissolving;
C. add phosphoric acid, promptly get scavenging solution after mixing.
5. with the method for cleaning stainless material, be included in to be lower than to clean or circulate under 60 ℃ and wash as the arbitrary described cleaning agent special for stainless steel of claim 1～3.
6. method according to claim 5 is cleaned at normal temperatures.
7. be used for the application of the surface cleaning of stainless material according to the arbitrary described cleaning agent special for stainless steel of claim 1～3.
8. application according to claim 7 is used to remove the oxide compound that stainless steel surface grease, dirt, welding slag, corrosion and high temperature produce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810246657 CN101768746B (en) | 2008-12-31 | 2008-12-31 | Cleaning agent special for stainless steel and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810246657 CN101768746B (en) | 2008-12-31 | 2008-12-31 | Cleaning agent special for stainless steel and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101768746A true CN101768746A (en) | 2010-07-07 |
| CN101768746B CN101768746B (en) | 2011-07-20 |
Family
ID=42501841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810246657 Active CN101768746B (en) | 2008-12-31 | 2008-12-31 | Cleaning agent special for stainless steel and preparation method and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699696A (en) * | 2019-11-18 | 2020-01-17 | 爱环吴世（苏州）环保股份有限公司 | Acid pickling passivation method for stainless steel pipe fitting |
| CN112845413A (en) * | 2019-11-26 | 2021-05-28 | 东莞新科技术研究开发有限公司 | Steel pipe cleaning method |
| CN113699000A (en) * | 2021-08-24 | 2021-11-26 | 福达合金材料股份有限公司 | Cleaning agent for removing stains on surface of rivet electrical contact and application of cleaning agent |
| CN113718267A (en) * | 2021-08-30 | 2021-11-30 | 浙江伦宝金属管业有限公司 | Tank liquor replacement circulating acidification treatment device and treatment method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232627C (en) * | 2003-04-24 | 2005-12-21 | 蓝星清洗工程有限公司 | Cleanning agent and preparing method, and application in cleaning without stopping engine |
| CN1297640C (en) * | 2003-06-25 | 2007-01-31 | 蓝星清洗工程有限公司 | Three-in-one cleaning agent |
| CN1297646C (en) * | 2003-06-25 | 2007-01-31 | 蓝星清洗工程有限公司 | Neutral deoiling derusting cleaning agent |
| CN1786281A (en) * | 2005-12-14 | 2006-06-14 | 王开平 | Metal surface treatment agent |
-
2008
- 2008-12-31 CN CN 200810246657 patent/CN101768746B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699696A (en) * | 2019-11-18 | 2020-01-17 | 爱环吴世（苏州）环保股份有限公司 | Acid pickling passivation method for stainless steel pipe fitting |
| CN112845413A (en) * | 2019-11-26 | 2021-05-28 | 东莞新科技术研究开发有限公司 | Steel pipe cleaning method |
| CN113699000A (en) * | 2021-08-24 | 2021-11-26 | 福达合金材料股份有限公司 | Cleaning agent for removing stains on surface of rivet electrical contact and application of cleaning agent |
| CN113718267A (en) * | 2021-08-30 | 2021-11-30 | 浙江伦宝金属管业有限公司 | Tank liquor replacement circulating acidification treatment device and treatment method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101768746B (en) | 2011-07-20 |
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Free format text: FORMER OWNER: BLUE STAR ENVIRONMENTAL ENGINEERING CO., LTD. Effective date: 20130415 Owner name: BEIJING BLUESTAR TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHINA BLUE STAR (GROUP) CO., LTD. Effective date: 20130415 |
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Free format text: CORRECT: ADDRESS; FROM: 100176 CHAOYANG, BEIJING TO: 101318 SHUNYI, BEIJING |
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Effective date of registration: 20130415 Address after: 101318 Beijing City, Shunyi District Airport Industrial Zone B Anxiang Road No. 5 Patentee after: Beijing Bluestar Technology Co., Ltd. Address before: 100176, No. 19 East Third Ring Road, Chaoyang District, Beijing Patentee before: China National Bluestar (Group) Co., Ltd. Patentee before: Blue Star Environmental Engineering Co., Ltd. |
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Owner name: BEIJING BLUESTAR WASHING CO., LTD. Free format text: FORMER NAME: BEIJING BLUESTAR TECHNOLOGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 101318 Beijing City, Shunyi District Airport Industrial Zone B Anxiang Road No. 5 Patentee after: BEIJING BLUESTAR CLEANING CO., LTD. Address before: 101318 Beijing City, Shunyi District Airport Industrial Zone B Anxiang Road No. 5 Patentee before: Beijing Bluestar Technology Co., Ltd. |
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Effective date of registration: 20161124 Address after: 300380 Tianjin District of Xiqing City automobile industrial zone (Zhangjiawo Industrial Zone) Anfu Road No. 7 Patentee after: Tianjin LAN-STAR washing Co. Ltd. Address before: 101318 Beijing City, Shunyi District Airport Industrial Zone B Anxiang Road No. 5 Patentee before: BEIJING BLUESTAR CLEANING CO., LTD. |