CN104087924A - Metal surface passivating treatment fluid - Google Patents
Metal surface passivating treatment fluid Download PDFInfo
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- CN104087924A CN104087924A CN201410328983.1A CN201410328983A CN104087924A CN 104087924 A CN104087924 A CN 104087924A CN 201410328983 A CN201410328983 A CN 201410328983A CN 104087924 A CN104087924 A CN 104087924A
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Abstract
The invention discloses a metal surface passivating treatment fluid which is characterized by comprising the following components in percentage by mass: 80-120g/l of magnesium fluoride, 5-7g/l of sodium tripolyphosphate, 20-30g/l of sodium fluosilicate, 40-50g/l of hydrochloric acid, 30-40g/l of nitric acid, 80-120g/l of phosphoric acid, 3-4g/l of sulfuric acid, 16-22g/l of calcium nitrate and the balance of water. The metal surface passivating treatment fluid disclosed by the invention is simple and practical in formula and safe, environment-friendly and pollution-free by containing no chromate, forms an oxygen or oxygen-containing particle absorption layer when reacted with a metal surface and achieves the passivation by enhancing the activation energy of electrode reaction and reducing the reaction capacity of the metal surface by changing the interface structure of metal and a solution due to the absorption of oxygen on the metal surface.
Description
Technical field
The present invention relates to field of metal surface treatment, be specifically related to a kind of metal surface passivation treating liquid.
Background technology
A kind of active metal or alloy, wherein chemically reactive reduces greatly, and becomes the phenomenon of precious metal state, cries passivation.If metal is because the corrosion product that the effect of medium generates has fine and close structure, form thin film (invisible often), closely cover metallic surface, change metallic surface state, make the electropotential of metal greatly to positive dirction transition, and become anti-corrosion passive state.During as Fe → Fe++, standard potential is-0.44V, jumps to+0.5-1V, and demonstrate corrosion resistant precious metal performance after passivation, and this layer film is just passive film.The chemical conversion membrane process of aluminum alloy surface can be divided into two kinds substantially: one is chromating facture, one is non-chromating facture, although chromating processing has many superior parts, but because (Cr) toxicity is high, easily carcinogenic, big for environment pollution, many countries have strictly limited use and the discharge of chromic salt, and are subject to great restriction along with coming into force of european union directive makes the use of chromic salt in metal finishing.Therefore, development of new non-chromium inactivating technique and the passivation for the treatment of solution replacement traditional chromium hydrochlorate are very necessary.
Summary of the invention
For the problems referred to above, the invention provides a kind of metal surface passivation treating liquid, thereby can replace traditional chromium hydrochlorate inactivating treatment liquid and reach the object of pollution-free environmental protection.
In order to address the above problem, technical scheme provided by the invention is:
A kind of metal surface passivation treating liquid, it is characterized in that: comprise following mass percent component: magnesium fluoride 80-120g/l, tripoly phosphate sodium STPP 5-7g/l, Sodium Silicofluoride 20-30g/l, hydrochloric acid 40-50g/l, nitric acid 30-40g/l, phosphoric acid 80-120g/l, sulfuric acid 3-4g/l, nitrocalcite 16-22g/l, surplus is water.
Preferably, described each mass percent component is: magnesium fluoride 85-115g/l, tripoly phosphate sodium STPP 5.5-6.5g/l, Sodium Silicofluoride 22-28g/l, hydrochloric acid 42-48g/l, nitric acid 32-38g/l, phosphoric acid 85-115g/l, sulfuric acid 3.2-3.8g/l, nitrocalcite 18-20g/l, surplus is water.
Preferably, described each mass percent component is: magnesium fluoride 100g/l, and tripoly phosphate sodium STPP 6g/l, Sodium Silicofluoride 25g/l, hydrochloric acid 45g/l, nitric acid 35g/l, phosphatase 11 00g/l, sulfuric acid 3.5g/l, nitrocalcite 19g/l, surplus is water.
Beneficial effect of the present invention is: the present invention fills a prescription simple and practical, chromate-free, safety and environmental protection is pollution-free, in the time having an effect with metallic surface, form one deck oxygen or the adsorption layer containing oxygen particle, due to the absorption of oxygen on metallic surface, changed the interface structure of metal and solution, the activation energy of electrode reaction is raise, metallic surface response capacity declines and passivation.
Embodiment
The present invention will be further described below:
Embodiment mono-:
A kind of metal surface passivation treating liquid, comprises following mass percent component: comprise following mass percent component: magnesium fluoride 80g/l, tripoly phosphate sodium STPP 5g/l, Sodium Silicofluoride 20g/l, hydrochloric acid 40g/l, nitric acid 30g/l, phosphoric acid 80g/l, sulfuric acid 3g/l, nitrocalcite 16g/l, surplus is water.
Beneficial effect of the present invention is: the present invention fills a prescription simple and practical, chromate-free, safety and environmental protection is pollution-free, in the time having an effect with metallic surface, form one deck oxygen or the adsorption layer containing oxygen particle, due to the absorption of oxygen on metallic surface, changed the interface structure of metal and solution, the activation energy of electrode reaction is raise, metallic surface response capacity declines and passivation.
Embodiment bis-:
A kind of metal surface passivation treating liquid, comprises following mass percent component: comprise following mass percent component: magnesium fluoride 120g/l, tripoly phosphate sodium STPP 7g/l, Sodium Silicofluoride 30g/l, hydrochloric acid 50g/l, nitric acid 40g/l, phosphatase 11 20g/l, sulfuric acid 4g/l, nitrocalcite 22g/l, surplus is water.
Beneficial effect of the present invention is: the present invention fills a prescription simple and practical, chromate-free, safety and environmental protection is pollution-free, in the time having an effect with metallic surface, form one deck oxygen or the adsorption layer containing oxygen particle, due to the absorption of oxygen on metallic surface, changed the interface structure of metal and solution, the activation energy of electrode reaction is raise, metallic surface response capacity declines and passivation.
Embodiment tri-:
A kind of metal surface passivation treating liquid, comprises following mass percent component: comprise following mass percent component: magnesium fluoride 100g/l, tripoly phosphate sodium STPP 6g/l, Sodium Silicofluoride 25g/l, hydrochloric acid 45g/l, nitric acid 35g/l, phosphatase 11 00g/l, sulfuric acid 3.5g/l, nitrocalcite 19g/l, surplus is water.
Beneficial effect of the present invention is: the present invention fills a prescription simple and practical, chromate-free, safety and environmental protection is pollution-free, in the time having an effect with metallic surface, form one deck oxygen or the adsorption layer containing oxygen particle, due to the absorption of oxygen on metallic surface, changed the interface structure of metal and solution, the activation energy of electrode reaction is raise, metallic surface response capacity declines and passivation.
Embodiment tetra-:
A kind of metal surface passivation treating liquid, comprises following mass percent component: comprise following mass percent component: magnesium fluoride 85g/l, tripoly phosphate sodium STPP 5.5g/l, Sodium Silicofluoride 22g/l, hydrochloric acid 42g/l, nitric acid 32g/l, phosphoric acid 85g/l, sulfuric acid 3.2g/l, nitrocalcite 18g/l, surplus is water.
Beneficial effect of the present invention is: the present invention fills a prescription simple and practical, chromate-free, safety and environmental protection is pollution-free, in the time having an effect with metallic surface, form one deck oxygen or the adsorption layer containing oxygen particle, due to the absorption of oxygen on metallic surface, changed the interface structure of metal and solution, the activation energy of electrode reaction is raise, metallic surface response capacity declines and passivation.
Embodiment five:
A kind of metal surface passivation treating liquid, comprises following mass percent component: comprise following mass percent component: magnesium fluoride 115g/l, tripoly phosphate sodium STPP 6.5g/l, Sodium Silicofluoride 28g/l, hydrochloric acid 48g/l, nitric acid 38g/l, phosphatase 11 15g/l, sulfuric acid 3.8g/l, nitrocalcite 20g/l, surplus is water.
Beneficial effect of the present invention is: the present invention fills a prescription simple and practical, chromate-free, safety and environmental protection is pollution-free, in the time having an effect with metallic surface, form one deck oxygen or the adsorption layer containing oxygen particle, due to the absorption of oxygen on metallic surface, changed the interface structure of metal and solution, the activation energy of electrode reaction is raise, metallic surface response capacity declines and passivation.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. a metal surface passivation treating liquid, it is characterized in that: comprise following mass percent component: magnesium fluoride 80-120g/l, tripoly phosphate sodium STPP 5-7g/l, Sodium Silicofluoride 20-30g/l, hydrochloric acid 40-50g/l, nitric acid 30-40g/l, phosphoric acid 80-120g/l, sulfuric acid 3-4g/l, nitrocalcite 16-22g/l, surplus is water.
2. metal surface passivation treating liquid according to claim 1, it is characterized in that: magnesium fluoride 85-115g/l, tripoly phosphate sodium STPP 5.5-6.5g/l, Sodium Silicofluoride 22-28g/l, hydrochloric acid 42-48g/l, nitric acid 32-38g/l, phosphoric acid 85-115g/l, sulfuric acid 3.2-3.8g/l, nitrocalcite 18-20g/l, surplus is water.
3. metal surface passivation treating liquid according to claim 1 and 2, it is characterized in that: described each mass percent component is: magnesium fluoride 100g/l, tripoly phosphate sodium STPP 6g/l, Sodium Silicofluoride 25g/l, hydrochloric acid 45g/l, nitric acid 35g/l, phosphatase 11 00g/l, sulfuric acid 3.5g/l, nitrocalcite 19g/l, surplus is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328983.1A CN104087924A (en) | 2014-07-10 | 2014-07-10 | Metal surface passivating treatment fluid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328983.1A CN104087924A (en) | 2014-07-10 | 2014-07-10 | Metal surface passivating treatment fluid |
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| CN104087924A true CN104087924A (en) | 2014-10-08 |
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| CN201410328983.1A Pending CN104087924A (en) | 2014-07-10 | 2014-07-10 | Metal surface passivating treatment fluid |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451632A (en) * | 2014-11-14 | 2015-03-25 | 无锡伊佩克科技有限公司 | Low-temperature passivating agent for galvanized steel sheet and preparation method of low-temperature passivating agent |
| CN105154861A (en) * | 2015-07-06 | 2015-12-16 | 安徽景昌铝业有限公司 | Chromate-free passivation treatment process for aluminum profile material |
| CN107557823A (en) * | 2017-08-11 | 2018-01-09 | 江苏富翔汽车科技有限公司 | A kind of zinc-plated high-purity electroplate liquid of novel alkaline |
| CN107829122A (en) * | 2017-11-24 | 2018-03-23 | 绩溪山合机械有限公司 | A kind of chain inactivating treatment liquid and its passivation process |
| CN108796584A (en) * | 2017-04-28 | 2018-11-13 | 宝山钢铁股份有限公司 | A kind of tin-plated product surface passivated membrane structural flexibility control method |
| CN109183053A (en) * | 2018-09-18 | 2019-01-11 | 山东龙口三元铝材有限公司 | A kind of flexibility treatment fluid and its method for handling pull ring material |
| CN111074256A (en) * | 2018-10-18 | 2020-04-28 | 沧州华润化工有限公司 | Preparation method of chromium-free passivator for surface passivation of cold-rolled sheet |
| CN112267107A (en) * | 2020-10-26 | 2021-01-26 | 胜赛思精密压铸（扬州）有限公司 | Corrosion-resistant chromium-free surface treatment process |
-
2014
- 2014-07-10 CN CN201410328983.1A patent/CN104087924A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 佚名: ""金属表面处理剂成分分析"", 《道客巴巴》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451632A (en) * | 2014-11-14 | 2015-03-25 | 无锡伊佩克科技有限公司 | Low-temperature passivating agent for galvanized steel sheet and preparation method of low-temperature passivating agent |
| CN104451632B (en) * | 2014-11-14 | 2016-11-23 | 响水亿鑫伟业科技有限公司 | A kind of galvanized steel plain sheet low-temperature passivation agent and preparation method thereof |
| CN105154861A (en) * | 2015-07-06 | 2015-12-16 | 安徽景昌铝业有限公司 | Chromate-free passivation treatment process for aluminum profile material |
| CN108796584A (en) * | 2017-04-28 | 2018-11-13 | 宝山钢铁股份有限公司 | A kind of tin-plated product surface passivated membrane structural flexibility control method |
| CN107557823A (en) * | 2017-08-11 | 2018-01-09 | 江苏富翔汽车科技有限公司 | A kind of zinc-plated high-purity electroplate liquid of novel alkaline |
| CN107829122A (en) * | 2017-11-24 | 2018-03-23 | 绩溪山合机械有限公司 | A kind of chain inactivating treatment liquid and its passivation process |
| CN109183053A (en) * | 2018-09-18 | 2019-01-11 | 山东龙口三元铝材有限公司 | A kind of flexibility treatment fluid and its method for handling pull ring material |
| CN109183053B (en) * | 2018-09-18 | 2021-01-01 | 山东龙口三元铝材有限公司 | Flexible treatment liquid and method for treating pull ring material by using same |
| CN111074256A (en) * | 2018-10-18 | 2020-04-28 | 沧州华润化工有限公司 | Preparation method of chromium-free passivator for surface passivation of cold-rolled sheet |
| CN112267107A (en) * | 2020-10-26 | 2021-01-26 | 胜赛思精密压铸（扬州）有限公司 | Corrosion-resistant chromium-free surface treatment process |
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Application publication date: 20141008 |