CN1029632C - Multifunctional low-temperature metal phosphorizing liquid - Google Patents
Multifunctional low-temperature metal phosphorizing liquid Download PDFInfo
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- CN1029632C CN1029632C CN 92102593 CN92102593A CN1029632C CN 1029632 C CN1029632 C CN 1029632C CN 92102593 CN92102593 CN 92102593 CN 92102593 A CN92102593 A CN 92102593A CN 1029632 C CN1029632 C CN 1029632C
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- phosphorized
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Abstract
The present invention relates to a method for preparing phosphorized liquor for metal surface treatment. The application temperature of the phosphorized liquor is from 25 to 35 DEGC. Metal work pieces are processed for 20 to 30 minutes in the same tank liquor. The phosphorized liquor can complete the comprehensive functions of oil removal, rust removal, phosphorization and passivation to the metal work pieces once. The phosphorized liquor needs little procedure, little equipment investment and little work area. Phosphorized films formed on processed work pieces have uniform and dense crystals which are regularly arranged. The weight of the films is from 4 to 30 g/m<2>, and is controllable. The phosphorized films have high corrosion resistance and good insulating property, have strong bonding force to paint, have stable performance in use, leave little deposit after application, and are easy to be treated and regenerated.
Description
The invention belongs to metal surface treating liquid and preparation method in the applied chemistry:
At present, have oil removing, rust cleaning, phosphatization, the multi-functional metal phosphorizing liquid of passivation concurrently, have high temperature phosphorization liquid (use temperature is at 80-98 ℃) and medium temperature phosphating solution (use temperature is at 50-70 ℃) to amount to five kinds, its prescription can be found from " antirust technology ", " antirust workbook ", " chemical industry small commodity production method " and books and periodicals such as " electroplating technology handbooks ".But use temperature does not see as yet that at 25-40 ℃ multifunctional low-temperature metal phosphorizing liquid report is arranged.
The object of the present invention is to provide a kind of multifunctional low-temperature metal phosphorizing liquid and preparation method thereof.This phosphatization liquid has the disposable comprehensive function of finishing oil removing, rust cleaning, phosphatization, passivation in same tank liquor to metal works, and its use temperature is at 25-35 ℃.And the preparation method is simple.
Prescription of the present invention is as follows, and its various component contents mean contained gram number or milliliter number in every premium on currency solution.
Zinc oxide: 50-75g
Nitric acid: 3-6ml
Phosphoric acid: 180-230g
Citric acid: 1.3-2.1g
Ammonium molybdate: 0.7-1.4g
Magnesium chloride: 30-40g
Potassium bichromate: 0.3-0.5g
Zinc nitrate: 240-280g
Sodium Nitrite: 1.2-1.8g
Sodium Fluoride: 3.5-4.4g
Trolamine: 4-7g
Tensio-active agent (AES): 8-12g
Emulsifying agent (OP-10): 4.5-6.3g
Water: add to 1 liter
As follows by above-mentioned prescription compound method of the present invention:
(1), the preparation of A solution: zinc oxide is added an amount of distilled water or deionized water furnishing pasty state, add nitric acid again, under agitation slowly add phosphoric acid then, and be heated to boiling and make it to dissolve fully transparent.
(2), the preparation of B solution: in container, put into 2/3 of institute's water requirement, under agitation condition, add ammonium molybdate, Sodium Nitrite, Sodium Fluoride, magnesium chloride, zinc nitrate, citric acid and potassium bichromate, make it molten entirely.
(3) preparation of whole soln: the A solution for preparing is slowly added in the B solution for preparing, and add again after mixing trolamine, surfactant A ES and emulsifier op-10 make it complete molten evenly, clear gets final product.
By above-mentioned prescription and the prepared multifunctional low-temperature metal phosphorizing liquid of the present invention of compound method, its outward appearance is green clear, the pH value 0.2-0.8 of solution, relative density (g/ml) 1.2-1.35, free acidity (point) 4-12, total acidity (point) 180-240.
It is 25-35 ℃ that the present invention handles the metal works service temperature, handles to get final product disposable oil removing, rust cleaning, phosphatization and the passivation comprehensive function finished in 20-30 minute in same tank liquor.Operation sequence is few, only needs the 3-4 procedure just can replace the 23-27 procedure of conventional phosphating process, significantly reduces the investment and the working area of equipment, and is easy to realize mechanize and automatization.Workpiece after phosphatization liquid of the present invention is handled, formed phosphatize phosphate coat crystallization even compact, marshalling, its film focuses on 4-30g/m
2Controlled, corrosion stability and insulativity height are strong to the coating bonding force; The use solution property is stable, and is few with the back sediment, is easy to administer and regeneration.
The embodiment of the invention sees the following form:
Examples Example 1 example 2
Content (g/l)
Form and operational condition
Zinc oxide 54 63
Nitric acid 3.5ml 5.4ml
Phosphatase 11 90 212
Citric acid 1.5 1.8
Zinc nitrate 245 262
Sodium Nitrite 1.3 1.4
Potassium bichromate 0.3 0.4
Sodium Fluoride 3.5 4.0
Ammonium molybdate 0.9 1.3
Magnesium chloride 34 31
Trolamine 6.5 4.2
AES 8.0 10.5
OP-10 5.8 5.0
Deionized water adds to 1 liter and adds to 1 liter
PH value 0.3 0.7
Relative density (g/ml) 1.20 1.31
Free acidity (point) 11.0 5.5
Total acidity (point) 190 235
Service temperature (℃) 30 30
Treatment time 30 20
354 seconds 842 seconds film destroy time (spot corrosion method)
Phosphatize phosphate coat weight (g/m
2) 5 30
Claims (2)
1, a kind of to metal works at use temperature 25-35 ℃ of multifunctional low-temperature metal phosphorizing liquid with oil removing, rust cleaning, phosphatization, passivation, it is characterized in that, the gram number of its prescription contained composition in a premium on currency solution or the milliliter number be:
Zinc oxide: 50-75g
Nitric acid: 3-6ml
Phosphoric acid: 180-230g
Magnesium chloride: 30-40g
Potassium bichromate: 0.3-0.5g
Trolamine: 4-7g
Zinc nitrate: 240-280g
Sodium Nitrite: 1.2-1.8g
Sodium Fluoride: 3.5-4.4g
Citric acid: 1.3-2.1g
Ammonium molybdate: 0.7-1.4g
Tensio-active agent (AES): 8-12g
Emulsifying agent (OP-10): 4.5-6.3g
Water: add to 1 liter
2, by the preparation method of the described phosphatization liquid of claim 1, it is characterized in that:
(1), the preparation of A solution: zinc oxide is added an amount of water furnishing pasty state, add nitric acid again, under agitation slowly add phosphoric acid then, and be heated to boiling and make it to dissolve fully transparent;
(2), the preparation of B solution: in container, put into 2/3 of institute's water requirement, under agitation condition, add ammonium molybdate, Sodium Nitrite, Sodium Fluoride, magnesium chloride, zinc nitrate, citric acid and potassium bichromate, make it molten entirely,
(3) preparation of whole soln: the A solution for preparing is slowly added in the B solution for preparing, add trolamine, tensio-active agent (AES) and emulsifying agent (OP-10) after mixing again and make it complete molten even), clear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102593 CN1029632C (en) | 1992-04-06 | 1992-04-06 | Multifunctional low-temperature metal phosphorizing liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102593 CN1029632C (en) | 1992-04-06 | 1992-04-06 | Multifunctional low-temperature metal phosphorizing liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1082627A CN1082627A (en) | 1994-02-23 |
| CN1029632C true CN1029632C (en) | 1995-08-30 |
Family
ID=4939747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92102593 Expired - Fee Related CN1029632C (en) | 1992-04-06 | 1992-04-06 | Multifunctional low-temperature metal phosphorizing liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1029632C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297640C (en) * | 2003-06-25 | 2007-01-31 | 蓝星清洗工程有限公司 | Three-in-one cleaning agent |
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| CN101210324B (en) * | 2006-12-29 | 2010-12-01 | 佛山市顺德区汉达精密电子科技有限公司 | Water-base passivator formulation and technique for anti-rust treatment of steel members |
| CN102121103B (en) * | 2010-01-11 | 2012-07-04 | 张华斌 | Low-temperature slag-free zinc bonderite as well as preparation method and applications thereof |
| CN101956189B (en) * | 2010-10-11 | 2012-11-28 | 无锡四方友信股份有限公司 | Method for treating inner surface of steel drum |
| CN102424963B (en) * | 2011-12-23 | 2013-09-18 | 无锡鸿海龙船机有限公司 | Phosphate treatment technology for deformation-free scuffing-resistant inner sleeve |
| CN102817027B (en) * | 2012-07-28 | 2016-04-06 | 蚌埠市福沃特车轮制造科技有限公司 | A kind of Low-Temperature Phosphate Liquid |
| CN102817025B (en) * | 2012-07-28 | 2016-04-06 | 蚌埠市福沃特车轮制造科技有限公司 | A kind of Low-Temperature Phosphate Liquid containing chromic acid |
| CN102817024B (en) * | 2012-07-28 | 2016-05-11 | 蚌埠市福沃特车轮制造科技有限公司 | A kind of Low-Temperature Phosphate Liquid that contains sodium cellulose glycolate |
| CN102817023B (en) * | 2012-07-28 | 2016-04-06 | 蚌埠市福沃特车轮制造科技有限公司 | A kind of high temperature corrosion-resisting Phosphating Solution |
| CN102925883B (en) * | 2012-11-29 | 2014-11-05 | 郭衡怀 | Multifunctional metal surface treatment solution |
| CN103726042A (en) * | 2013-12-11 | 2014-04-16 | 三达奥克化学股份有限公司 | Treating agent for cleaning and performing coating conversion and rust prevention on inner wall of nuclear power plant used 559 ton acrylic acid reactor |
| CN107460489A (en) * | 2017-07-04 | 2017-12-12 | 河池桂嘉知识产权服务有限公司 | The method for removing steel surface rusty stain |
| CN109468009B (en) * | 2018-10-29 | 2020-12-18 | 重庆炫吉科技有限公司 | Environment-friendly metal surface coating pretreatment agent and preparation method thereof |
| CN113846320B (en) * | 2021-10-27 | 2024-01-23 | 西安热工研究院有限公司 | Four-in-one phosphating solution and preparation method thereof |
| CN114855156A (en) * | 2022-05-09 | 2022-08-05 | 如皋市凯源电器设备有限公司 | Preparation process of corrosion-resistant conductive strip |
-
1992
- 1992-04-06 CN CN 92102593 patent/CN1029632C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297640C (en) * | 2003-06-25 | 2007-01-31 | 蓝星清洗工程有限公司 | Three-in-one cleaning agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1082627A (en) | 1994-02-23 |
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