CN101876078A - Additive for pickling degreasing and derusting of steel - Google Patents
Additive for pickling degreasing and derusting of steel Download PDFInfo
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- CN101876078A CN101876078A CN2010102329250A CN201010232925A CN101876078A CN 101876078 A CN101876078 A CN 101876078A CN 2010102329250 A CN2010102329250 A CN 2010102329250A CN 201010232925 A CN201010232925 A CN 201010232925A CN 101876078 A CN101876078 A CN 101876078A
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Abstract
The invention relates to an additive for pickling degreasing and derusting of steel, which is mainly applied to pickling degreasing and derusting, corrosion inhibition and fog inhibition in the pretreatment process of plating and coating of a steel assembly. The additive comprises the components by weight percent: 0 to 2% of methenamine, 0 to 1% of oleic acid-based imidazoline corrosion inhibitor, 0 to 10% of JFC-M, 0 to 5% of degreasing agent, 0 to 4% of sodium dodecylsulfate and the balance of water. The additive has the advantages of simple preparation and low cost, and is characterized in that the additive is applicable to degreasing and derusting of the steel assembly in hydrochloric acid, sulfuric acid or mixing acid of hydrochloric acid and sulfuric acid and also has good corrosion inhibition and fog inhibition performance. The general addition quantity is 1% to 2% of acid solution quality. In use, the addition quantity can be properly regulated according to the real acid solution concentration and the surface condition of the assembly.
Description
Technical field
The present invention relates to a kind of additive for pickling degreasing and derusting of steel, be mainly used in pickling degreasing, rust cleaning and slow corrosion inhibiting fog in iron member plating, the Coating Pretreatment process.The invention belongs to metallic surface clean technical field.
Background technology
Metal parts is electroplated, the degreasing and rust removal before the application is the critical process that guarantees coating and coating quality, and traditional degreasing and rust removal technology is, carries out alkaline degreasing earlier, carries out acid pickling and rust removing then after washing, i.e. oil removing and rust cleaning proceed step by step.Not only operation is loaded down with trivial details for this traditional method, and occupation of land is many, and water for cleaning and consumption of chemical agent are too much.In order to overcome the above problems, reach the purpose of simplifying working process and shortening the pre-treatment time, can be by in pickle solution, adding suitable tensio-active agent and other medicaments, one step of realization degreasing and rust removal finishes.Domestic more to this research, efficient pickling degreasing agent of BH-6A and technology thereof, many at home for over ten years families electroplate, spray in the factory and use.Shortcomings such as the existing degreaser product of existing market partly exists corrosion mitigating effect poor, and oil removal rate is low.The present invention develops a kind of degreasing and rust removal additive that generally is used for hydrochloric acid, sulfuric acid, hydrochloric acid-sulfuric acid mixing acid, uses simply, and the oil removal efficiency height, corrosion inhibition is good.
Summary of the invention
The invention provides a kind of additive for pickling degreasing and derusting of steel, its each component and content are: urotropine 0～2%, and oleic acid base imidazoline inhibitor 0～1%, JFC-M 0～10%, degreaser 0～5%, sodium lauryl sulphate 0～4%, surplus are water.
1. urotropine is one of inhibiter composition that generally adopts, and has good corrosion inhibition.Experiment finds that urotropine has good promoter action to oil removing simultaneously, and oil removal rate improves along with the increase of urotropine concentration.But, because the urotropine excessive concentration will influence rust cleaning speed, so its concentration should be controlled within the specific limits.
2. oleic acid base imidazoline inhibitor has good corrosion inhibition, and etch-proof little to the influence of rust cleaning speed simultaneously, promptly can obviously not reduce rust cleaning speed.
3.JFC-M play the effect of wetting infiltration, can improve the seepage velocity of acid solution to rusty scale, help improving the speed of oil removing, rust cleaning.
4. degreaser is a kind of or its mixture of acid deoiling agent X-103 of Hebei chemical industry today company limited and X-100, has stronger degreasing degreasing effect.
5. sodium lauryl sulphate is used to suppress acid mist, helps smeary thoroughly to remove simultaneously.
Preparation method of the present invention is dissolved in urotropine in a certain amount of water by proportioning earlier, the oleic acid base imidazoline inhibitor, JFC-M, the efficient degreasing agent that progressively add metering, stir, stir the sodium dodecyl sulfate solution that adds metering then, the water that replenishes surplus at last is mixed with highly efficient deoiling, derusting additive of the present invention.It is characterized in that, be applicable to oil removing, the rust cleaning in hydrochloric acid, sulfuric acid or hydrochloric acid-sulfuric acid mixing acid such as iron member, have good inhibition simultaneously, press down the mist performance.Use the 1-2% of addition as the acid solution quality.
Prepare according to following component and content: urotropine 1%, oleic acid base tetrahydroglyoxaline 0.5%, JFC-M 5%, degreaser 5%, sodium lauryl sulphate 2.5%.Make highly efficient deoiling, derusting additive of the present invention, its quality index is:
| Index name | Index |
| Outward appearance | Colourless transparent liquid |
| Density (20 ℃), g/cm 3 | ??0.998 |
| Solid content (%) | ??13.8 |
| ??pH | ??6.0-7.0 |
Embodiment
According to described method preparation highly efficient deoiling, derusting additive, be designated as FT-A, each component and consisting of: urotropine 1%, oleic acid base tetrahydroglyoxaline 0.5%, JFC-M 5%, degreaser 5%, sodium lauryl sulphate 2.5%, water surplus.
Embodiment 1:
Test conditions: hydrochloric acid 15%, 25 ℃ of temperature, 30# machine oil.
| ??BH-6A | ??FT-A | |
| Addition (%) | ??2 | ??2 |
| Oil removal rate (%) | ??72.9 | ??91.7 |
| Corrosion inhibition rate (%) | ??56.5 | ??79.8 |
| The rust cleaning time (minute) | ??10 | ??8 |
Test-results shows that highly efficient deoiling, derusting additive of the present invention is applied in the hydrochloric acid under the normal temperature condition, has excellent deoiling effect, can have good corrosion mitigating effect simultaneously.
Embodiment 2:
Experiment condition: hydrochloric acid 250ml/L, sulfuric acid 140ml/L, 25 ℃ of temperature, 30# machine oil.
| ??BH-6A | ??FT-A | |
| Addition (%) | ??2 | ??2 |
| Oil removal rate (%) | ??80.2 | ??90.8 |
| Corrosion inhibition rate (%) | ??66.6 | ??80.3 |
| The rust cleaning time (minute) | ??10 | ??8 |
Test-results shows that highly efficient deoiling, derusting additive of the present invention is applied in hydrochloric acid-sulfuric acid mixing acid under the normal temperature condition, has excellent deoiling effect, can have good corrosion mitigating effect simultaneously.
Claims (5)
1. an additive for pickling degreasing and derusting of steel is characterized in that, its each component and content are urotropine 0～2%, oleic acid base imidazoline inhibitor 0～1%, and JFC-M 0～10%, degreaser 0～5%, sodium lauryl sulphate 0～4%, surplus are water.
2. additive for pickling degreasing and derusting of steel according to claim 1 is characterized in that, its each component and content are urotropine 1%, oleic acid base imidazoline inhibitor 0.5%, and JFC-M 5%, degreaser 5%, sodium lauryl sulphate 2%, surplus are water.
3. additive for pickling degreasing and derusting of steel according to claim 1 is characterized in that, the degreaser in its component is the mixture of one or both degreasers.
4. additive for pickling degreasing and derusting of steel according to claim 1, it is characterized in that, its preparation method is for being dissolved in urotropine in a certain amount of water by proportioning earlier, the oleic acid base imidazoline inhibitor, JFC-M, the degreaser that progressively add metering, stir, stir the sodium dodecyl sulfate solution that adds metering then, the water that replenishes surplus at last is mixed with additive for pickling degreasing and derusting of steel of the present invention.
5. additive for pickling degreasing and derusting of steel according to claim 1 is characterized in that, is applicable to oil removing, the rust cleaning in hydrochloric acid, sulfuric acid or hydrochloric acid-sulfuric acid mixing acid such as iron member, has good inhibition simultaneously, presses down the mist performance.Use the 1-2% of addition as the acid solution quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102329250A CN101876078A (en) | 2010-07-08 | 2010-07-08 | Additive for pickling degreasing and derusting of steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102329250A CN101876078A (en) | 2010-07-08 | 2010-07-08 | Additive for pickling degreasing and derusting of steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101876078A true CN101876078A (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102329250A Pending CN101876078A (en) | 2010-07-08 | 2010-07-08 | Additive for pickling degreasing and derusting of steel |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242367A (en) * | 2011-06-17 | 2011-11-16 | 陕西省石油化工研究设计院 | Multifunctional novel ethylene diamine tetraacetic acid (EDTA) cleaning corrosion inhibitor |
| CN103194760A (en) * | 2013-04-02 | 2013-07-10 | 北京化工大学 | Foam type cleaning agent for processing iron sulfides |
| CN103882452A (en) * | 2014-03-13 | 2014-06-25 | 陕西省石油化工研究设计院 | Citric acid acid-pickling inhibitor |
| CN104131304A (en) * | 2014-08-25 | 2014-11-05 | 钱宏彬 | High-efficiency multifunctional batch hot galvanizing acid wash additive and preparation method thereof |
| CN104404552A (en) * | 2014-11-14 | 2015-03-11 | 无锡信大气象传感网科技有限公司 | Antirust cleaning solution for sensor galvanized shell |
| CN104862719A (en) * | 2015-03-12 | 2015-08-26 | 浏阳市三鹰新材料有限责任公司 | Environmental-protection type multifunctional efficient acid washing mist inhibition corrosion inhibitor |
| CN104988523A (en) * | 2015-06-08 | 2015-10-21 | 苏州东辰林达检测技术有限公司 | Stainless steel antiscaling agent and preparation method thereof |
| CN112372171A (en) * | 2020-11-23 | 2021-02-19 | 湖州南浔中盛金属热处理有限公司 | Welding process of steel pipe for automobile |
| CN112941449A (en) * | 2021-02-03 | 2021-06-11 | 徐州瑞马智能技术有限公司 | High-strength low-relaxation additive for hot galvanizing |
-
2010
- 2010-07-08 CN CN2010102329250A patent/CN101876078A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242367A (en) * | 2011-06-17 | 2011-11-16 | 陕西省石油化工研究设计院 | Multifunctional novel ethylene diamine tetraacetic acid (EDTA) cleaning corrosion inhibitor |
| CN103194760A (en) * | 2013-04-02 | 2013-07-10 | 北京化工大学 | Foam type cleaning agent for processing iron sulfides |
| CN103194760B (en) * | 2013-04-02 | 2015-07-08 | 北京化工大学 | Foam type cleaning agent for processing iron sulfides |
| CN103882452A (en) * | 2014-03-13 | 2014-06-25 | 陕西省石油化工研究设计院 | Citric acid acid-pickling inhibitor |
| CN103882452B (en) * | 2014-03-13 | 2015-09-30 | 陕西省石油化工研究设计院 | Citric acid pickling inhibitor |
| CN104131304A (en) * | 2014-08-25 | 2014-11-05 | 钱宏彬 | High-efficiency multifunctional batch hot galvanizing acid wash additive and preparation method thereof |
| CN104404552A (en) * | 2014-11-14 | 2015-03-11 | 无锡信大气象传感网科技有限公司 | Antirust cleaning solution for sensor galvanized shell |
| CN104862719A (en) * | 2015-03-12 | 2015-08-26 | 浏阳市三鹰新材料有限责任公司 | Environmental-protection type multifunctional efficient acid washing mist inhibition corrosion inhibitor |
| CN104988523A (en) * | 2015-06-08 | 2015-10-21 | 苏州东辰林达检测技术有限公司 | Stainless steel antiscaling agent and preparation method thereof |
| CN112372171A (en) * | 2020-11-23 | 2021-02-19 | 湖州南浔中盛金属热处理有限公司 | Welding process of steel pipe for automobile |
| CN112941449A (en) * | 2021-02-03 | 2021-06-11 | 徐州瑞马智能技术有限公司 | High-strength low-relaxation additive for hot galvanizing |
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Application publication date: 20101103 |