CN101492818A - Rust preventive for parkerizing treatment and method of use thereof - Google Patents
Rust preventive for parkerizing treatment and method of use thereof Download PDFInfo
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- CN101492818A CN101492818A CNA2008100329850A CN200810032985A CN101492818A CN 101492818 A CN101492818 A CN 101492818A CN A2008100329850 A CNA2008100329850 A CN A2008100329850A CN 200810032985 A CN200810032985 A CN 200810032985A CN 101492818 A CN101492818 A CN 101492818A
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Abstract
The invention provides an antirusting agent, comprising 0.5 to 1.5 percent of sodium molybdate, 0.2 to 4 percent of sodium silicate, 0.5 to 3 percent of hexamethylenetetramine, and 0.05 to 0.5 percent of non-ionic surface active agent peregal, in terms of gross weight of the antirusting agent as 100 percent. The invention also provides a method for applying the antirusting agent. During use, the antirusting agent is mixed with water according to proportion of 1:5-1:10 to prepare antirusting solution; and a work piece is dipped in the antirusting solution for 2 to 30 minutes after phosphating and washing. The antirusting agent can improve the corrosion resistance of the metal surface and improve the performance of humidity isolation and air isolation of a protective layer while ensuring the performance of the original phosphate coating. The antirusting agent can not cause acid mist which pollutes environment, does not contain nitrite, bichromate and other toxic and polluting substances, can not burn skin during use, does not stimulate or damage human body, is safe and reliable, and is easy for operation.
Description
Technical field
The invention belongs to the metal rust preventing field, be specifically related to a kind of rust-preventive agent and using method thereof.
Background technology
Ferrous materials has widely at industry-by-industry to be used, yet it is because the loss that corrosion causes is very surprising.At present steel are generally adopted bonderizing, form certain phosphatize phosphate coat on its surface.Through parkerized workpiece, its excellent physical and mechanical properties such as intensity, hardness, elasticity, magnetic, ductility etc. remain unchanged, and processed steel part surface, owing to form the phosphatize phosphate coat of even compact, its rub resistance, anti-stick button performance improve greatly.Simultaneously, phosphating process is easy and simple to handle, and is with low cost, thereby is widely used in the steel surface processing.But in actual production and using, owing to failing in time to use behind the steel bonderizing, store 1～2 month usually promptly to get rusty phenomenon.If in manufactory, found again pickling remove behind the phosphatize phosphate coat bonderizing once more, cause rejection and waste; If get rusty before use then can cause user's complaint even quality objection.Therefore, how under the prerequisite that does not influence steel performance, further to improve its surperficial antirust ability and become problem demanding prompt solution.
Chinese patent application number 200510017845.2 (metal rust-inhibiting liquids) disclose a kind of rust protection liquid, are tertiary sodium phosphate 10～40%, water glass 0.5～3%, industrial sodium nitrite 3～9%, urotropine 0.5～3%, urea 4～4% and water 40～70% by the weight percent of each component concentration.The content height of each raw material wherein, consumption is big, causes the growth of cost.
Therefore; in order to overcome the deficiencies in the prior art; the object of the present invention is to provide the rust-preventive agent behind a kind of suitable steel bonderizing, under the prerequisite that guarantees former phosphatize phosphate coat performance, improve the erosion resistance of metallic surface, improve the performance of protective layer damp proof insulation and secluding air with lower cost.
Summary of the invention
The invention provides a kind of rust-preventive agent to using behind the steel enforcement bonderizing, in this rust-preventive agent gross weight is 100%, wherein contains weight percent and be 0.5～1.5% Sodium orthomolybdate, 0.2～4% water glass, 0.5～3% hexamethylenetetramine and 0.05～0.5% nonionogenic tenside peregal.
Sodium orthomolybdate is a water soluble rust inhibitor; low toxicity; nuisanceless; do not cause that microorganism multiplies; its inhibition process is that molybdenum acid ion and ferrous ion at first form the non-protective complex compound, and ferrous ion is oxidized to ferric ion by oxygen in water then, and at this moment ferrous ion and molybdate complex compound just change into the molybdic acid high ferro that is insoluble to neutrality or alkaline aqueous solution; the final steel iron surface is covered by the molybdic acid high ferro, forms protective membrane.The effect of this film be to stop iron ion by film to solution diffusion, simultaneously also stoped the migration of corrosive medium, thereby suppressed corrosion of metal to the metallic surface.Water glass is a kind of inhibiter of totally nontoxic sedimentation type; with the composite use of Sodium orthomolybdate, the precipitation membrane that water glass forms can remedy the defective of the passive film that Sodium orthomolybdate forms; thereby form complete compact protective film layer at material surface, the prevention corrosive takes place and carries out.
The average nonionogenic tenside that adds as, soluble in water, stability is high, all very stable, nontoxic in hard water, acid solution, alkali lye, readily biodegradable, peregal has performances such as good wetting, emulsification, diffusion, also show simultaneously good rust inhibition and positive coopertive effect, have the complementarity between the two-pack inhibiter after composite, thereby suppressed corrosion of metal effectively.
Hexamethylenetetramine is a kind of four poly-tertiary amines, claim urotropine again, be white crystals, normal and other water soluble rust inhibitor is used, because the lone-pair electron of the nitrogen-atoms on the amido can become key to produce chemisorption with the iron atom coordination of steel surface, make it form adsorption film at steel surface, further perfect passivation film, thereby reduce the dissolution rate of metal, improve inhibition efficiency.
The present invention also provides the using method of described rust-preventive agent, during use rust-preventive agent is mixed being made into rust protection liquid with water; After workpiece phosphatization, washing, immerse in the rust protection liquid and take out after dipping for some time.Preferably, rust-preventive agent is mixed with water according to 1: 5～1: 10 ratio be made into rust protection liquid; Workpiece immerses in the rust protection liquid and floods taking-up in 2～30 minutes after phosphatization, washing.
Beneficial effect
Handle through rust-preventive agent of the present invention, the phosphatize phosphate coat surface has formed the passive film of one deck densification, can effectively improve the performance of protective layer damp proof insulation and secluding air, and rust-proof effect can reach more than half a year.This rust-preventive agent can not pollute the acid mist of environment, does not contain the material that nitrite, dichromate etc. are poisonous, pollution is arranged, can skin ambustion during use, and non-stimulated, harmless to human body, safe and reliable, easy handling.
Embodiment
Below for a more detailed description with embodiment to the present invention.These embodiment only are the descriptions to best mode for carrying out the invention, scope of the present invention are not had any restriction.
Embodiment 1
Gross weight in rust-preventive agent is 100%, in following ratio: Sodium orthomolybdate 1.5%, water glass 4%, hexamethylenetetramine 0.5%, nonionogenic tenside peregal 0.05%, preparation 100kg rust-preventive agent.The rust-preventive agent of preparation mixes with water in 1: 5 ratio, is made into rust protection liquid.After workpiece phosphatization, washing, immerse in the rust protection liquid and take out after 3 minutes.Corrosion phenomena does not take place through scene storage in this workpiece after 6 months.
Embodiment 2
Gross weight in rust-preventive agent is 100%, in following ratio: Sodium orthomolybdate 0.5%, water glass 2%, hexamethylenetetramine 3%, nonionogenic tenside peregal 0.3%, preparation 100kg rust-preventive agent.The rust-preventive agent of preparation mixes with water in 1: 8 ratio, is made into rust protection liquid.After workpiece phosphatization, washing, immerse in the rust protection liquid and take out after 15 minutes.Corrosion phenomena does not take place through scene storage in this workpiece after 6 months.
Embodiment 3
Gross weight in rust-preventive agent is 100%, in following ratio: Sodium orthomolybdate 1.0%, water glass 0.2%, hexamethylenetetramine 1.5%, nonionogenic tenside peregal 0.5%, preparation 100kg rust-preventive agent.The rust-preventive agent of preparation mixes with water in 1: 10 ratio, is made into rust protection liquid.After workpiece phosphatization, washing, immerse in the rust protection liquid and take out after 30 minutes.Corrosion phenomena does not take place through scene storage in this workpiece after 6 months.
Claims (5)
1, a kind of rust-preventive agent is 100% in this rust-preventive agent gross weight, wherein contains 0.5～1.5% Sodium orthomolybdate, 0.2～4% water glass, 0.5～3% hexamethylenetetramine and 0.05～0.5% nonionogenic tenside peregal.
2, rust-preventive agent as claimed in claim 1 is characterized in that, described Sodium orthomolybdate content is 1.5%, and described water glass content is 4%, and described hexamethylenetetramine content is 0.5%, and described nonionogenic tenside peregal content is 0.05%.
3, rust-preventive agent as claimed in claim 1 is characterized in that, described Sodium orthomolybdate content is 0.5%, and described water glass content is 2%, and described hexamethylenetetramine content is 3%, and described nonionogenic tenside peregal content is 0.3%.
4, rust-preventive agent as claimed in claim 1 is characterized in that, described Sodium orthomolybdate content is 1.0%, and described water glass content is 0.2%, and described hexamethylenetetramine content is 1.5%, and described nonionogenic tenside peregal content is 0.5%.
5, the using method of the described rust-preventive agent of claim 1 is characterized in that may further comprise the steps: (1) is mixed according to 1: 5～1: 10 ratio rust-preventive agent and is made into rust protection liquid with water; (2) workpiece immerses in the rust protection liquid and floods taking-up in 2～30 minutes after phosphatization, washing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100329850A CN101492818A (en) | 2008-01-24 | 2008-01-24 | Rust preventive for parkerizing treatment and method of use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100329850A CN101492818A (en) | 2008-01-24 | 2008-01-24 | Rust preventive for parkerizing treatment and method of use thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN101492818A true CN101492818A (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100329850A Pending CN101492818A (en) | 2008-01-24 | 2008-01-24 | Rust preventive for parkerizing treatment and method of use thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310039A (en) * | 2010-07-07 | 2012-01-11 | 浙江景加源机械有限公司 | Process for carrying out rustproof treatment on screwed nipple of liquid accumulator |
| CN105908171A (en) * | 2016-05-31 | 2016-08-31 | 安徽开林新材料股份有限公司 | Iron and steel surface antirust agent |
| CN109837546A (en) * | 2017-11-24 | 2019-06-04 | 北京蓝星清洗有限公司 | Ammonium persulfate corrosion inhibiter and its application used in a kind of offshore oilfield extraction oil-piping |
| CN110951283A (en) * | 2019-12-16 | 2020-04-03 | 湘潭市双马世纪新材料有限公司 | Synergistic anti-corrosion composite anti-rust pigment and preparation method thereof |
-
2008
- 2008-01-24 CN CNA2008100329850A patent/CN101492818A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310039A (en) * | 2010-07-07 | 2012-01-11 | 浙江景加源机械有限公司 | Process for carrying out rustproof treatment on screwed nipple of liquid accumulator |
| CN102310039B (en) * | 2010-07-07 | 2014-01-15 | 浙江景加源机械有限公司 | Process for carrying out rustproof treatment on screwed nipple of liquid accumulator |
| CN105908171A (en) * | 2016-05-31 | 2016-08-31 | 安徽开林新材料股份有限公司 | Iron and steel surface antirust agent |
| CN109837546A (en) * | 2017-11-24 | 2019-06-04 | 北京蓝星清洗有限公司 | Ammonium persulfate corrosion inhibiter and its application used in a kind of offshore oilfield extraction oil-piping |
| CN110951283A (en) * | 2019-12-16 | 2020-04-03 | 湘潭市双马世纪新材料有限公司 | Synergistic anti-corrosion composite anti-rust pigment and preparation method thereof |
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Open date: 20090729 |