CN102732936A - Method for preparing silicon oxide ceramic coatings on steel member through electrophoretic deposition - Google Patents
Method for preparing silicon oxide ceramic coatings on steel member through electrophoretic deposition Download PDFInfo
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- CN102732936A CN102732936A CN201210181478XA CN201210181478A CN102732936A CN 102732936 A CN102732936 A CN 102732936A CN 201210181478X A CN201210181478X A CN 201210181478XA CN 201210181478 A CN201210181478 A CN 201210181478A CN 102732936 A CN102732936 A CN 102732936A
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- silicon oxide
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Abstract
The invention discloses a method for preparing silicon oxide ceramic coatings on surfaces of Fe, Cu, Zn, Ni, Sn and their alloy through electrophoretic deposition. The method comprises the following steps: carrying out dark nickel electroplating or composite nickeling, or phosphorizing with above metals as electrophoretic silicon oxide coating matrixes, nickel sulfate as a main salt, nickel chloride as an anodic activator, boric acid as a buffering agent and Al2O3 as a powder body; carrying out electrophoretic deposition on the nickeled or phosphorized metal matrixes in a prepared silicon oxide sol; drying the matrixes; and sintering the matrixes to obtain the silicon oxide ceramic coatings. The method provided in the invention, which uses the electrophoretic deposition, has the characteristics of simple technology and no need of expensive or complex devices, and the prepared ceramic coatings have better compactness than pulled films, and have good performances and uniform components. The method can be used for preparing wear resistant coatings and high temperature oxidation resistant coatings on surfaces of metals especially common steel and above metals, can substitute hard chromium electroplating technologies with severe pollutions, and has the advantages of cleanness, no pollution and easy industrialization realization.
Description
Technical field
The invention belongs to field of metal surface treatment, relate to electrophoretic deposition technique and prepare the silicon oxide ceramics coating process, particularly a kind of on steel part electrophoretic deposition prepare the method for silicon oxide ceramics coating.
Background technology
Process for modifying surface can improve metal material surface characteristics, prevents or delay workpiece to lose efficacy, and prolongs the work-ing life of workpiece and equipment, has huge economic benefit.Stupalith hardness is high, and wear resistance, solidity to corrosion and pyro-oxidation resistance are good, on the metallic surface, prepare ceramic coating, can combine the advantage of above-mentioned advantage of stupalith and metallic substance high-plasticity, obtains the good workpiece of over-all properties.At present, base steel ceramic coating preparation technology has powder metallurgic method, plasma spraying, laser melting coating, vapour deposition, enamel coated technology, sol-gel method and combustion synthesis method etc.Silica sol electrodip process technology of the present invention has the following advantages: 1, electrophoretic deposition technique is a kind of surface coating process of gentleness, and phase transformation and the embrittlement that can avoid pyroprocess to cause help strengthening the bonding force between base metal and the ceramic coating; 2, technology is prone to realize that equipment is simpler, and depositing operation is easy to control, receives the restriction of workpiece shape and size little, films evenly; 3, this method has combined the characteristics of two kinds of technologies; Both remedied that particle only depends on wicking action and the sedimentary deficiency of adsorptive power in the sol-gel method,, accelerated sedimentation rate for deposition provides bigger motivating force; It is big also to have overcome common electrical when deposition particle, and mould material is characteristics such as densification inadequately; 4, electrophoretic deposition process is non-streamlined process, can prepare uniform function ceramics settled layer with metal material surface porous surface complex-shaped.Electrodip process has been widely used in preparing various function ceramics/metal composites in recent years.But directly at carbon steel, stainless steel and low alloy steel substrate preparation ceramic coating, there is the difficulty in process that film/basic bonding force is weak, peel off easily, generally needs suitable pre-treatment, the preparation transition layer.
Summary of the invention
The object of the invention; Provide a kind of method that on steel part, prepares the silicon oxide ceramics coating with electrophoretic deposition; The present invention through phosphatization, to plate dark nickel, chemical composite nickel-plating or composite plating nickel be that intermediate layer and colloidal sol electrophoretic deposition technique combine and prepare the silicon oxide ceramics coating at steel surface; Improve film and matrix bond mode, improve ceramic coating and substrate combinating strength.
The technical scheme that adopts is:
A kind of method that on steel part, prepares the silicon oxide ceramics coating with electrophoretic deposition comprises following process step:
1), pre-treatment: as ceramic coating or composite ceramic coat matrix, workpiece can be for iron and steel, copper, zinc, nickel, tin and their alloy with workpiece, and with substrate pretreated, preprocessing process is: use flint paper, 1000 successively
#, 1500
#With 2000
#Abrasive paper for metallograph is polished step by step, washing, electrochemical deoiling, hot water wash, cold wash, electrochemical degreasing, hot water wash, cold wash, pickling, twice cold wash, phosphatization or electronickelling or composite nickel-plating or electro-galvanizing, copper etc. other can do the metal in middle layer, be known technology;
2), preparation intermediate layer: adopting single nickel salt is main salt; Nickelous chloride is the anode acvator, and boric acid is buffer reagent, and powders such as aluminum oxide, silicon oxide, titanium oxide or silit are as the nickeling layer wild phase; Pretreated workpiece is electroplated dark nickel or composite nickel-plating; Concrete technology is: in temperature is 40 ~ 70 ℃, and bath pH value is 3.2 ~ 5.4 times, with single nickel salt 250 ~ 300gL
-1, nickelous chloride 30 ~ 50gL
-1, boric acid 35 ~ 40gL
-1Mix, plating time is 5 ~ 30 min;
3), preparation ceramic coating: will electroplate the workpiece immersion silica sol behind dark nickel or the composite nickel-plating or be added with in the combined oxidation silicon sol that improves silicon oxide dispersing property additive; Adopt electrophoretic deposition to prepare ceramic coating; Electrophoretic voltage 1 ~ 100V; Electrophoresis time 1 second ~ 180 minutes was dried in 40 ~ 300 ℃ baking oven 1 ~ 24 hour then, and electrophoresis can repeat 1 ~ 10 time;
4), roasting: under atmospheric environment, maturing temperature is 200 ℃ ~ 1200 ℃, and soaking time 0 ~ 24 hour promptly gets.
Above-mentioned silica sol or to be added with the combined oxidation silicon sol that improves silicon oxide dispersing property additive be that commercially available particle diameter is the colloidal sol in 10 ~ 20nm scope or the 8 ~ 100nm scope, or preparation voluntarily under lab are known technology.
Beneficial effect of the present invention is:
The present invention is with intermediate layer; With metal carry out phosphatization or on metal plating dark nickel or Ni-based ceramic powder composite plating or composite chemical plating be intermediate layer; Adopt the colloidal sol electrophoretic deposition technique to prepare the silicon oxide ceramics coating, solved enhancing metal and the low technical barrier of ceramic coating binding force of membrane in above-mentioned metallic surface.Compounding method technology provided by the present invention is easy, need not the equipment of expensive, and prepared silicon oxide ceramics coating compactness is good, and composition is even.This technology can be used on preparation resistance to high temperature oxidation and abrasion-resistant coating on the above-mentioned metallic surface, alternative with serious pollution electroplating hard chromium process, and this technology is prone to realize industriallization, does not receive the restriction of work shape.
Embodiment
A kind of method that on steel part, prepares the silicon oxide ceramics coating with electrophoretic deposition comprises following process step:
1), pre-treatment: as ceramic coating or composite ceramic coat matrix, workpiece can be for iron and steel, copper, zinc, nickel, tin and their alloy with workpiece, and with substrate pretreated, preprocessing process is: use flint paper, 1000 successively
#, 1500
#With 2000
#Abrasive paper for metallograph is polished step by step, washing, electrochemical deoiling, hot water wash, cold wash, electrochemical degreasing, hot water wash, cold wash, pickling, twice cold wash, phosphatization or electronickelling or composite nickel-plating or electro-galvanizing, copper etc. other can do the metal in middle layer, be known technology;
2), preparation intermediate layer: adopting single nickel salt is main salt; Nickelous chloride is the anode acvator, and boric acid is buffer reagent, and titanium oxide is as the nickeling layer wild phase; Pretreated workpiece is electroplated dark nickel; Concrete technology is: in temperature is 40 ~ 70 ℃, and bath pH value is 3.2 ~ 5.4 times, with single nickel salt 250 ~ 300gL
-1, nickelous chloride 30 ~ 50gL
-1, boric acid 35 ~ 40gL
-1Mix, plating time is 5 ~ 30 min;
3), preparation ceramic coating: will electroplate the workpiece immersion silica sol behind the dark nickel or be added with in the combined oxidation silicon sol that improves silicon oxide dispersing property additive; Adopt electrophoretic deposition to prepare ceramic coating; Electrophoretic voltage 1 ~ 100V; Electrophoresis time 1 second ~ 180 minutes was dried in 40 ~ 300 ℃ baking oven 1 ~ 24 hour then, and electrophoresis can repeat 1 ~ 10 time;
4), roasting: under atmospheric environment, maturing temperature is 200 ℃ ~ 1200 ℃, and soaking time 0 ~ 24 hour promptly gets.
Above-mentioned silica sol or to be added with the combined oxidation silicon sol that improves silicon oxide dispersing property additive be that commercially available particle diameter is the colloidal sol in 10 ~ 20nm scope or the 8 ~ 100nm scope, or preparation voluntarily under lab are known technology.
Claims (1)
1. a method that on steel part, prepares the silicon oxide ceramics coating with electrophoretic deposition comprises pre-treatment, preparation intermediate layer, preparation ceramic coating and roasting, it is characterized in that:
The preparation intermediate layer: pretreated workpiece is electroplated dark nickel or composite nickel-plating, and concrete technology is: in temperature is 40 ~ 70 ℃, and bath pH value is 3.2 ~ 5.4 times, with single nickel salt 250 ~ 300gL
-1, nickelous chloride 30 ~ 50gL
-1, boric acid 35 ~ 40gL
-1Mix, plating time is 5 ~ 30 min;
The preparation ceramic coating: the workpiece that will have an intermediate layer immerses silica sol or is added with in the combined oxidation silicon sol that improves silicon oxide dispersing property additive; Adopt electrophoretic deposition to prepare ceramic coating; Electrophoretic voltage 1 ~ 100V; Electrophoresis time 1 second ~ 180 minutes was dried in 40 ~ 300 ℃ baking oven 1 ~ 24 hour then, and electrophoresis can repeat 1 ~ 10 time;
Roasting: under atmospheric environment, maturing temperature is 200 ℃ ~ 1200 ℃, and soaking time 0 ~ 24 hour promptly gets.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210181478.XA CN102732936B (en) | 2012-06-05 | 2012-06-05 | Method for preparing silicon oxide ceramic coatings on steel member through electrophoretic deposition |
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| CN201210181478.XA CN102732936B (en) | 2012-06-05 | 2012-06-05 | Method for preparing silicon oxide ceramic coatings on steel member through electrophoretic deposition |
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| CN102732936A true CN102732936A (en) | 2012-10-17 |
| CN102732936B CN102732936B (en) | 2015-04-22 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040042A (en) * | 2015-09-22 | 2015-11-11 | 太仓市金鹿电镀有限公司 | Electroplating process of abrasion-resistant nickel film |
| CN105177572A (en) * | 2015-07-24 | 2015-12-23 | 西北有色金属研究院 | Method for preparing anti-corrosion composite coating on surface of steel plate |
| CN107513747A (en) * | 2017-07-26 | 2017-12-26 | 贵州省兴仁县荣凯五金搪瓷制品有限公司 | A kind of preparation method of enamel coating |
| CN107945987A (en) * | 2017-11-16 | 2018-04-20 | 安徽天大铜业有限公司 | A kind of inorganic sealed electric-magnetic wire and preparation method thereof |
| CN111235474A (en) * | 2020-02-20 | 2020-06-05 | 孙志颜 | High-corrosion-resistance stainless steel and manufacturing method thereof |
| CN111304652A (en) * | 2020-03-22 | 2020-06-19 | 浙江宇达新材料有限公司 | Process method for replacing phosphorization by coating ceramic membrane |
| CN112877737A (en) * | 2021-01-13 | 2021-06-01 | 广州超邦化工有限公司 | Method for coating hydroxyl graphene modified electrophoretic paint on nickel-free stainless steel and protective coating |
| CN114381782A (en) * | 2021-12-29 | 2022-04-22 | 江苏诺德新材料股份有限公司 | Environment-friendly high-Tg low-dielectric copper-clad plate and preparation process thereof |
| CN115011907A (en) * | 2022-06-10 | 2022-09-06 | 南方电网电力科技股份有限公司 | Supersonic flame spraying composite coating and preparation method and application thereof |
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2012
- 2012-06-05 CN CN201210181478.XA patent/CN102732936B/en not_active Expired - Fee Related
Patent Citations (6)
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105177572A (en) * | 2015-07-24 | 2015-12-23 | 西北有色金属研究院 | Method for preparing anti-corrosion composite coating on surface of steel plate |
| CN105177572B (en) * | 2015-07-24 | 2017-10-13 | 西北有色金属研究院 | A kind of method for preparing anti-corrosion composite coating in surface of steel plate |
| CN105040042A (en) * | 2015-09-22 | 2015-11-11 | 太仓市金鹿电镀有限公司 | Electroplating process of abrasion-resistant nickel film |
| CN107513747A (en) * | 2017-07-26 | 2017-12-26 | 贵州省兴仁县荣凯五金搪瓷制品有限公司 | A kind of preparation method of enamel coating |
| CN107945987A (en) * | 2017-11-16 | 2018-04-20 | 安徽天大铜业有限公司 | A kind of inorganic sealed electric-magnetic wire and preparation method thereof |
| CN107945987B (en) * | 2017-11-16 | 2019-09-27 | 安徽天大铜业有限公司 | A kind of inorganic sealed electric-magnetic wire and preparation method thereof |
| CN111235474A (en) * | 2020-02-20 | 2020-06-05 | 孙志颜 | High-corrosion-resistance stainless steel and manufacturing method thereof |
| CN111304652A (en) * | 2020-03-22 | 2020-06-19 | 浙江宇达新材料有限公司 | Process method for replacing phosphorization by coating ceramic membrane |
| CN112877737A (en) * | 2021-01-13 | 2021-06-01 | 广州超邦化工有限公司 | Method for coating hydroxyl graphene modified electrophoretic paint on nickel-free stainless steel and protective coating |
| CN114381782A (en) * | 2021-12-29 | 2022-04-22 | 江苏诺德新材料股份有限公司 | Environment-friendly high-Tg low-dielectric copper-clad plate and preparation process thereof |
| CN114381782B (en) * | 2021-12-29 | 2022-10-21 | 江苏诺德新材料股份有限公司 | Environment-friendly high-Tg low-dielectric copper-clad plate and preparation process thereof |
| CN115011907A (en) * | 2022-06-10 | 2022-09-06 | 南方电网电力科技股份有限公司 | Supersonic flame spraying composite coating and preparation method and application thereof |
| CN115011907B (en) * | 2022-06-10 | 2024-01-19 | 南方电网电力科技股份有限公司 | Supersonic flame spraying composite coating and preparation method and application thereof |
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