CN100577878C - Environment-friendly type metal normal temperature surface preservative treatment technique - Google Patents
Environment-friendly type metal normal temperature surface preservative treatment technique Download PDFInfo
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- CN100577878C CN100577878C CN200710071179A CN200710071179A CN100577878C CN 100577878 C CN100577878 C CN 100577878C CN 200710071179 A CN200710071179 A CN 200710071179A CN 200710071179 A CN200710071179 A CN 200710071179A CN 100577878 C CN100577878 C CN 100577878C
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- silane
- normal temperature
- metal
- metal piece
- treatment
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention provides an environment-friendly anti-corrosive treatment process for the metal surface at normal temperature. The process comprises the following steps: firstly, completely cleaning the surface of a metal piece; carrying out hydroxylation treatment on the surface of the metal piece by aqueous solution which contains 15 to 25 gram/liter of polymeric aluminum chloride, 3 to 5 gram/liter of diethanolameine, and 5 to 8 gram/liter of polyethylene glycol; immersing the metal piece in silane treatment solution after cleaning to make the surface of the metal piece form a silane transition film; then cleaning and drying the metal piece; coating an anti-corrosive coating on the silane transition film on the surface of the metal piece; and finally, drying and solidifying the metal piece. In the method, the metal surface is subjected to the hydroxylation treatment to cause hydroxide radical to stay on the metal surface; a silane coupling agent at normal temperature can be quickly deposited, dried and solidified on the metal surface needing no auxiliary reaction of metal salt; and silanization treatment can be completely realized. The process has the advantages of environmental protection, energy conservation, prevention of environmental pollution and normal temperature treatment process. Moreover, the generated silane transition film and the coated anti-corrosive coating have the advantages of good bonding performance, falling prevention, strong corrosion resistance and good corrosion prevention.
Description
Technical field:
The present invention relates to a kind of metallic surface anticorrosion treatment technology.
Background technology:
The most frequently used surface anticorrosive treatment method of common metal material is to use chromic salt or phosphate solution to make the metallic surface form the adherance bottom membrane, applies corrosion protection coating again.But the environmental pollution that is to use chromatedsolution is serious and toxic, does not meet the requirement of safety and environmental protection.Then contain a large amount of phosphoric acid and its esters in the phosphate solution, environment is also had pollution.The conversion film treatment process that the tannin acidic group is arranged now after small amounts of phosphoric acid, Weibull process metal surfaces, makes the metallic iron surface-stable, and follow-up coating and matrix bond are tight, but the solidity to corrosion of rete is very limited.Chinese patent CN1299401 discloses a kind of surface treating composition and surface treatment method that is used for metallic substance, surface treating composition is the aqueous solution, contain silane coupling agent, and mineral compound, the compound of the metal-salt that comprises silicon-dioxide, silicate, exists with colloidal state forms rete at metal material surface after the surface treatment.But also contain metal-salt in the solution of being made up of silane coupling agent in this invention, do not realize that silanization is handled completely, environmental-protecting performance also can improve, and still needs heat treated in its treatment process, can't realize normal temperatureization, and energy consumption is big.
Summary of the invention:
At the deficiencies in the prior art, the invention provides a kind of favorable anti-corrosion effect, the environment-friendly type metal normal temperature surface preservative treatment technique of environmental protection and energy saving.
Technology of the present invention is at first thoroughly cleaned the metalwork surface, again metalwork is immersed silane treatment solution, make the metalwork surface form the silane transition film, clean then and drying, on the silane transition film on metalwork surface, apply corrosion protection coating, final drying curing gets final product, with hydroxylation solution hydroxylation being carried out on the metalwork surface earlier after the metalwork surface is thoroughly cleaned handles, clean back refabrication silane transition film, used hydroxylation solution is the aqueous solution of hydroxyl aluminum chloride 15-25g/L, diethanolamine 3-5g/L, polyoxyethylene glycol 5-8g/L; Used silane treatment solution also is the aqueous solution, contains the methyl(3-mercaptopropyl) dimethoxysilane of 1-5%, the ethanol of 20-30%.
The present invention has carried out the hydroxylation processing to the metallic surface, make the metallic surface have oh group, the silane coupling agent under the normal temperature is deposited rapidly and dry solidification in the metallic surface, need not the metal-salt assisted reaction, can realize that silanization is handled completely, environmental protection and energy saving do not pollute the environment, treatment process normal temperatureization, and the silane transition film that produces and the corrosion protection coating excellent bonding performance of coating, difficult drop-off, solidity to corrosion is strong, favorable anti-corrosion effect.
The actual silane treatment aqueous solution that uses is metal-containing salt not, and film forming is very rapid, and Air drying fast.Corrosion protection coating can adopt the organic silicon nano coating, and solidity to corrosion is strong, easily dry solidification.
Further specify the present invention below by embodiment.
Embodiment:
The 08A1 steel plate is carried out rotproofing.At first the metalwork surface thoroughly being cleaned, generally is to carry out in proper order by degreasing degreasing → washing → pickling → washing, can remove all impurity like this, and makes the metalwork surface keep good wettability.With hydroxylation solution hydroxylation is carried out on the metalwork surface again and handle, make the metallic surface have oh group, used hydroxylation solution is the aqueous solution of hydroxyl aluminum chloride 15-25g/L, diethanolamine 3-5g/L, polyoxyethylene glycol 5-8g/L.Washing then, metalwork is immersed silane treatment solution, perhaps at the spraying of the surface of metalwork, brushing silane treatment solution, make the metalwork surface form the silane transition film, the silane treatment solution of use is the methyl(3-mercaptopropyl) dimethoxysilane that contains 1-5%, the alcoholic acid aqueous solution of 20-30%.Clean then and dry metalwork, apply the organosilicon nano coating on the silane transition film on metalwork surface, final drying curing gets final product, and above-mentioned steps all can be carried out in normal temperature.
The metalwork that obtains is by the cross cut test standard of GB/T9286-1998 paint film, and corrosion protection coating sticking power reaches 1 grade, and according to the salt-fog test of GB/T10125-1997, the corrosion grading is more than or equal to 9 grades.
Claims (2)
1, a kind of environment-friendly type metal normal temperature surface preservative treatment technique, at first the metalwork surface is thoroughly cleaned, again metalwork is immersed silane treatment solution, make the metalwork surface form the silane transition film, clean then and drying, on the silane transition film on metalwork surface, apply corrosion protection coating, final drying curing gets final product, it is characterized by: after the metalwork surface is thoroughly cleaned, with hydroxylation solution hydroxylation is carried out on the metalwork surface earlier and handle, clean back refabrication silane transition film, used hydroxylation solution is hydroxyl aluminum chloride 15-25g/L, diethanolamine 3-5g/L, the aqueous solution of polyoxyethylene glycol 5-8g/L; Used silane treatment solution also is the aqueous solution, contains the methyl(3-mercaptopropyl) dimethoxysilane of 1-5%, the ethanol of 20-30%.
2, environment-friendly type metal normal temperature surface preservative treatment technique according to claim 1 is characterized by: corrosion protection coating adopts the organic silicon nano coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710071179A CN100577878C (en) | 2007-09-12 | 2007-09-12 | Environment-friendly type metal normal temperature surface preservative treatment technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710071179A CN100577878C (en) | 2007-09-12 | 2007-09-12 | Environment-friendly type metal normal temperature surface preservative treatment technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101386990A CN101386990A (en) | 2009-03-18 |
| CN100577878C true CN100577878C (en) | 2010-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710071179A Expired - Fee Related CN100577878C (en) | 2007-09-12 | 2007-09-12 | Environment-friendly type metal normal temperature surface preservative treatment technique |
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| CN (1) | CN100577878C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888604A (en) * | 2012-09-21 | 2013-01-23 | 虞伟财 | Anti-corrosion treatment method for surface of metal aluminum |
| CN105149192A (en) * | 2015-09-12 | 2015-12-16 | 杭州萧山金润表面活性材料厂 | Metal surface coating process |
| CN105088218B (en) * | 2015-09-12 | 2018-04-10 | 杭州萧山金润表面活性材料厂 | A kind of metal surface coating process |
| CN105149193A (en) * | 2015-09-12 | 2015-12-16 | 杭州萧山金润表面活性材料厂 | Metal surface coating pretreatment process |
| CN108080231A (en) * | 2017-11-29 | 2018-05-29 | 马鞍山市恒特重工科技有限公司 | A kind of building machinery surface corrosion-resistant loses processing method |
| CN108530968A (en) * | 2018-03-28 | 2018-09-14 | 山东金麒麟股份有限公司 | Brake disc surface anticorrosion treatment technology and automobile brake disc |
| CN109332133A (en) * | 2018-11-06 | 2019-02-15 | 宁波赛德森减振系统有限公司 | A method of improving cast-iron belt pulley damper coating resistance to corrosion |
| CN110029341A (en) * | 2019-06-04 | 2019-07-19 | 深圳市豪龙新材料技术有限公司 | A kind of Non-water washing silane finish of coated metal pre-treatment and preparation method thereof |
| CN111482345A (en) * | 2020-03-18 | 2020-08-04 | 安徽昌发实业有限公司 | Surface corrosion-resistant treatment process for iron artware |
| CN113529095A (en) * | 2021-08-05 | 2021-10-22 | 漳州市兴达辉机械有限公司 | Surface treatment process for handle connecting cross rod |
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2007
- 2007-09-12 CN CN200710071179A patent/CN100577878C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101386990A (en) | 2009-03-18 |
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Granted publication date: 20100106 Termination date: 20130912 |