CN102516835A - Inorganic chromium-free environment-friendly type insulation paint for oriented silicon steel - Google Patents
Inorganic chromium-free environment-friendly type insulation paint for oriented silicon steel Download PDFInfo
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- CN102516835A CN102516835A CN2011104106868A CN201110410686A CN102516835A CN 102516835 A CN102516835 A CN 102516835A CN 2011104106868 A CN2011104106868 A CN 2011104106868A CN 201110410686 A CN201110410686 A CN 201110410686A CN 102516835 A CN102516835 A CN 102516835A
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Abstract
The invention relates to an inorganic insulation paint for oriented silicon steel. The inorganic insulation paint contains the following chemical components of: by weight, 0.2-2% of molybdate, 0.5-5% of sulfate, 0.5-2% of boric acid, 15-25% of aluminium dihydrogen phosphate, 15-30% of colloidal silicon dioxide and the balance being pure water. The inorganic insulation paint contains no chromium and has good high temperature resistance, insulating properties, adhesiveness and appearance quality. Simultaneously, the magnetic property is improved. The inorganic insulation paint is used in a manufactured oriented silicon steel product, contains no chromium element which is harmful to the environment and human body, and belongs to an environment-friendly type product.
Description
Technical field
The present invention relates to a kind of coating, the oriented silicon steel that relates in particular to a kind of environmental protection is used inorganic insulation coating.
Background technology
EU Committee in 2003 and European Parliament have issued two stereotyped commands, that is: the instruction (ROHS) of some objectionable impurities is used in restriction in the instruction of electronic and electrical equipment waste and the electronic and electrical equipment.It requires the index of harmful element in the electric equipment products of selling on the European Union market on July 1st, 2006 necessary up to specification, and the objectionable impurities that promptly will limit has; Cadmium, lead, mercury, sexavalent chrome, PBBs, polymerization bromination biphenyl ether etc.Promptly taken the lead in requiring to get in its regional electrical sheet containing the chromium element, will have more and more countries and area to propose a type requirement that is from now on.In order to overcome the shortcoming that contains the harmful coating of chromium, silicon steel manufacturer considers to come the substitute chromium acid anhydrides with the material of other form both at home and abroad.
In recent years, the domestic and international technician in present technique field also had been devoted to research, the exploitation oriented silicon steel use inorganic insulation coating, i.e. chromium free paint, but see that from situation about retrieving it is poor that major part exists insulating property, the also shortcoming of non-refractory.Disclose a kind of Chrome-free oriented electrical steel and insulation compound thereof like patent documentation KR20010082119, introduced the chemical ingredients and the production technique of this steel grade, its last insulating coating comprises: zn phosphate; Trimagnesium phosphate; 0.5-12% boric acid or contain a kind of in the borate of Na, Al, Ca, Li, Mg.The deficiency that this patent documentation exists is: the coating erosion resistance is relatively poor, and appearance of coat is not good.Patent documentation JP19790150688 discloses a kind of insulation compound that is used for the Chrome-free oriented silicon steel, and its content comprises: 7-60 part trimagnesium phosphate; 8-40 part one or two kind of vitriol; 20 parts of silica gel.The deficiency that this patent documentation exists is: the coating tack is general, and the appearance of coat quality is not good, and corrosion resistance of coating is relatively poor simultaneously.Chinese patent document ZL200610030717.6 has proposed a kind of oriented silicon steel and has used the chromium-free environment-friendly insulation compound; Its chemical ingredients mass percent is: 0.01%～3% block polyether non-ionics; 0.2%～3% boric acid; 9%～30% aluminium dihydrogen phosphate, 8%～20% colloid silica.The deficiency that this patent documentation exists is: the coating non-refractory, cause corrosion-resistant.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of and neither contain chromium, and have good high temperature resistant, insulating property, tack and visual appearance, the improved inorganic chromium-free environment-friendly type insulation compound that is used for oriented silicon steel of magnetic property simultaneously.
Realize the measure of above-mentioned purpose:
A kind of inorganic chromium-free environment-friendly type insulation compound that is used for oriented silicon steel; Its chemical ingredients and mass percent are: molybdate: 0.2%～2%; Vitriol: 0.5%～5%, boric acid: 0.5%～2%, aluminium dihydrogen phosphate: 15%～25%; Colloid silica: 15%～30%, surplus is a pure water.
It is characterized in that: described molybdate is: one or both in the molybdate thing of Fe, Na, Ni, Ca, Bi, K and above with arbitrary proportion blended mixture.
It is characterized in that: described vitriol is: one or both in the sulfuric acid thing of Fe, Na, Mg, Sr, Mn, Mo, Zn and above with arbitrary proportion blended mixture.
The mechanism of action of each raw material among the present invention
Molybdate: in iron molybdate, Sodium orthomolybdate, nickel molybdate, calcium molybdate, bismuth molybdate, the Potassium orthomolybdate more than a kind or 2 kinds with the blended mixture of arbitrary proportion, it plays in masking liquid and improves coating erosion resistance and surface brightness effect.
Vitriol: be the above blended mixture with arbitrary proportion more than a kind or 2 kinds in ferric sulfate, sodium sulfate, sal epsom, Strontium Sulphate, manganous sulfate, molybdenum trisulfate, the zinc sulfate, it plays in masking liquid and improves the coating erosion resistance and improve the appearance effect.
Boric acid: in order to improve coating erosion resistance and luminance brightness.
Aluminium dihydrogen phosphate: in masking liquid, play the sticker effect, to improve the tack of insulating coating and glassy membrane bottom.
Colloid silica: in order to improve the associativity of coating, luminance brightness, wearability.
Molybdate compound and sulphate cpd are the colloidalmaterials as stabilized aqueous solution.The form of above-mentioned colloidalmaterial is independent compound colloid and SiO
2Or Al
2O
3Deng composite gel or their mixture.
Above mineral compound is effective to filling phosphatic vesicular structure, and, combine easily with the free phosphoric acid composition, bring the effect that makes the phosphate compsn stabilization.
The present invention neither contains chromium, and has good high temperature resistant, insulating property, tack and visual appearance, and magnetic property improves simultaneously, and the oriented silicon steel that is used for manufacturing does not contain the chromium element to environment and human body harmful, belongs to environmentally friendly machine.
Embodiment
In the face of doing, the present invention further describes down:
Table 1 is component and a span thereof among each embodiment.
Table 2 is the performance test results cartogram of each embodiment after coating.
Component and span unit thereof among each embodiment of table 1: mass percent
Annotate: the mass percent residual content is a pure water.
The performance test results of each embodiment of table 2 after coating
Can find out that from table 2 in embodiment 1～10, its appearance of coat, tack, solidity to corrosion, thermotolerance and magnetic property improve situation can both reach excellent results.
Claims (3)
1. inorganic chromium-free environment-friendly type insulation compound that is used for oriented silicon steel, its chemical ingredients and mass percent are:
Molybdate: 0.2%～2%, vitriol: 0.5%～5%, boric acid: 0.5%～2%, aluminium dihydrogen phosphate: 15%～25%, colloid silica: 15%～30%, surplus is a pure water.
2. a kind of inorganic chromium-free environment-friendly type insulation compound that is used for oriented silicon steel as claimed in claim 1, it is characterized in that: described molybdate is: one or both in the molybdate thing of Fe, Na, Ni, Ca, Bi, K and above with arbitrary proportion blended mixture.
3. a kind of inorganic chromium-free environment-friendly type insulation compound that is used for oriented silicon steel as claimed in claim 1, it is characterized in that: described vitriol is: one or both in the sulfuric acid thing of Fe, Na, Mg, Sr, Mn, Mo, Zn and above with arbitrary proportion blended mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104106868A CN102516835A (en) | 2011-12-12 | 2011-12-12 | Inorganic chromium-free environment-friendly type insulation paint for oriented silicon steel |
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| CN2011104106868A CN102516835A (en) | 2011-12-12 | 2011-12-12 | Inorganic chromium-free environment-friendly type insulation paint for oriented silicon steel |
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| CN102516835A true CN102516835A (en) | 2012-06-27 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013194A (en) * | 2012-12-14 | 2013-04-03 | 武汉钢铁(集团)公司 | Environment-friendly insulating coating capable of improving surface brightness of oriented silicon steel |
| CN103333535A (en) * | 2013-05-27 | 2013-10-02 | 明尼苏达矿业制造特殊材料（上海）有限公司 | Nano-coating liquid, coating formed from the nano-coating liquid, use of the nano-coating liquid on base material and coating method |
| CN103709796A (en) * | 2013-12-12 | 2014-04-09 | 武汉钢铁(集团)公司 | Chromium-free stress coating capable of improving surface tension of oriented silicon steel, and preparation method thereof |
| CN104540910A (en) * | 2012-07-30 | 2015-04-22 | 株式会社京都材料 | Coating and coated steel |
| CN106189459A (en) * | 2016-07-27 | 2016-12-07 | 福州大学 | A kind of chromium-free environmental-protection insulating paint for orientation silicon steel |
| CN107190252A (en) * | 2017-06-13 | 2017-09-22 | 武汉圆融科技有限责任公司 | A kind of chrome-free insulating coating composition and preparation method thereof and directional silicon steel |
| CN115109440A (en) * | 2022-06-21 | 2022-09-27 | 湖北武洲新材料科技有限公司 | Oriented silicon steel with excellent moisture resistance and manufacturing method thereof |
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| CN101135049A (en) * | 2006-08-31 | 2008-03-05 | 宝山钢铁股份有限公司 | Non-chromic environment protective oriented silicon steel insulating coating |
| CN101255298A (en) * | 2007-12-28 | 2008-09-03 | 马鞍山钢铁股份有限公司 | Non-oriented electrical steel chromium-free insulation paint |
| CN101705023A (en) * | 2008-12-30 | 2010-05-12 | 北方涂料工业研究设计院 | Chromium-free surface insulating paint containing rare earth element for silicon steel sheet |
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Patent Citations (3)
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| CN101135049A (en) * | 2006-08-31 | 2008-03-05 | 宝山钢铁股份有限公司 | Non-chromic environment protective oriented silicon steel insulating coating |
| CN101255298A (en) * | 2007-12-28 | 2008-09-03 | 马鞍山钢铁股份有限公司 | Non-oriented electrical steel chromium-free insulation paint |
| CN101705023A (en) * | 2008-12-30 | 2010-05-12 | 北方涂料工业研究设计院 | Chromium-free surface insulating paint containing rare earth element for silicon steel sheet |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104540910B (en) * | 2012-07-30 | 2018-10-02 | 株式会社京都材料 | Coating and coating steel |
| CN104540910A (en) * | 2012-07-30 | 2015-04-22 | 株式会社京都材料 | Coating and coated steel |
| CN103013194B (en) * | 2012-12-14 | 2015-04-08 | 武汉钢铁(集团)公司 | Environment-friendly insulating coating capable of improving surface brightness of oriented silicon steel |
| CN103013194A (en) * | 2012-12-14 | 2013-04-03 | 武汉钢铁(集团)公司 | Environment-friendly insulating coating capable of improving surface brightness of oriented silicon steel |
| CN103333535A (en) * | 2013-05-27 | 2013-10-02 | 明尼苏达矿业制造特殊材料（上海）有限公司 | Nano-coating liquid, coating formed from the nano-coating liquid, use of the nano-coating liquid on base material and coating method |
| CN103709796A (en) * | 2013-12-12 | 2014-04-09 | 武汉钢铁(集团)公司 | Chromium-free stress coating capable of improving surface tension of oriented silicon steel, and preparation method thereof |
| CN103709796B (en) * | 2013-12-12 | 2016-04-06 | 武汉钢铁(集团)公司 | The capillary Chrome-free stresscoat of oriented silicon steel and preparation method can be improved |
| CN106189459A (en) * | 2016-07-27 | 2016-12-07 | 福州大学 | A kind of chromium-free environmental-protection insulating paint for orientation silicon steel |
| CN107190252A (en) * | 2017-06-13 | 2017-09-22 | 武汉圆融科技有限责任公司 | A kind of chrome-free insulating coating composition and preparation method thereof and directional silicon steel |
| JP6419374B1 (en) * | 2017-06-13 | 2018-11-07 | 武漢圓融科技有限責任公司 | Treatment liquid for forming chromium-free insulating coating, method for preparing the same, and method for producing grain-oriented silicon steel sheet |
| JP2019002069A (en) * | 2017-06-13 | 2019-01-10 | 武漢圓融科技有限責任公司 | Processing liquid for forming chromium-free insulation film, preparing method thereof, and production method of directional silicon steel plate |
| US10301480B2 (en) | 2017-06-13 | 2019-05-28 | Wuhan Yuanrong Technology Co., Ltd. | Chromium-free insulation coating composition, method for making same, and grain oriented silicon steel sheet |
| CN115109440A (en) * | 2022-06-21 | 2022-09-27 | 湖北武洲新材料科技有限公司 | Oriented silicon steel with excellent moisture resistance and manufacturing method thereof |
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Application publication date: 20120627 |