CN103468034A - Method for preparing semi-inorganic styrene-acrylic silicon steel insulating coating through in-situ compatibilization polymerization - Google Patents
Method for preparing semi-inorganic styrene-acrylic silicon steel insulating coating through in-situ compatibilization polymerization Download PDFInfo
- Publication number
- CN103468034A CN103468034A CN2013104078373A CN201310407837A CN103468034A CN 103468034 A CN103468034 A CN 103468034A CN 2013104078373 A CN2013104078373 A CN 2013104078373A CN 201310407837 A CN201310407837 A CN 201310407837A CN 103468034 A CN103468034 A CN 103468034A
- Authority
- CN
- China
- Prior art keywords
- parts
- coating
- inorganic
- styrene
- coupling agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Soft Magnetic Materials (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention relates to a method for preparing a semi-inorganic styrene-acrylic silicon steel insulating coating through in-situ compatibilization polymerization. The coating comprises the following components in parts by mass: 100-200 parts of dihydric phosphate, 0.5-2 parts of nanometer SiO2, 800-1000 parts of deionized water, 20-50 parts of acrylate, 5-10 parts of acrylic acid, 20-45 parts of styrene, 1-5 parts of emulsifier, 0-2 parts of polyvinyl alcohol, 0.5-2.5 parts of initiator, 0.5-2.5 parts of sodium bicarbonate, 0.5-2 parts of coupling agent and 10-15 parts of glycerine. According to the invention, the dihydric phosphate aqueous solution is directly adopted as the inorganic component and the emulsion polymerization reaction of styrene-acrylate is carried out to prepare the electrical steel insulating coating. The method disclosed by the invention has the advantages that the good compatibility between the inorganic component and the organic emulsion is guaranteed; the stability of the coating is increased; no harmful element is contained; the coating has good combination property at the same time.
Description
Technical field
The present invention relates to a kind of method that In Situ Compatibilization letex polymerization prepares environment-friendly type half inorganic styrene-acrylic silicon steel insulating coating, belong to electrical steel steel insulation compound preparing technical field.
Background technology
Silicon steel, electrical steel, have good electromagnetic performance, can be used for manufacturing electric motor, generator, transformer and ballast iron core, is a kind of important Metallic Functional Materials.In application process in order to reduce its eddy-current loss, need to be at surface-coated one deck insulating coating, to improve its electromagnetic performance.This coating need to possess good insulativity and higher interlamination resistance and good punching, tack, thermotolerance, erosion resistance, rust-preventing characteristic etc.At present, electrical steel mainly contains inorganic coating, organic coating and half inorganic coating three major types with insulating coating.Organic coating has the advantages such as film forming properties is good, the punching processing characteristics is superior, but organic coating is generally thicker, and weldability is poor, and the iron core overlapping coefficient is low, and the coating heat-shrinkable is large, and dimensional stability is poor.And the interlamination resistance of organic coating can reduce gradually with operation.Inorganic coating has excellent thermotolerance, insulativity and weldability, but has punching processibility and the poor shortcoming of tack.Half inorganic coating refers to organic constituent is joined in inorganic paint and is uniformly dispersed, and in order to improve punching processibility and the sticking power of inorganic coating, simultaneously, by the content of controlling organic constituent, obtains weldability and thermotolerance preferably.Therefore, most of organic constituent and the composite modified mode of inorganic component of adopting of paint for electrical steel, prepare the superior electrical steel of over-all properties at present.Organic constituent commonly used is generally acrylic resin, vinyl acetate resin, modified alkyd resin and epoxy resin etc.; Inorganic component commonly used is generally phosphoric acid salt, chromic salt and silicate etc.Because physical aspect and the chemical property difference of organic constituent and inorganic component are larger, organic constituent is difficult to evenly diffusion in inorganic component, and consistency is poor, produces excessive efflorescence in the lamination punching course, causes the accumulation of coating on equipment.On the other hand, the resin organic resin poor heat resistance of enrichment, produce carbonization phenomenon in the heating anneal treating processes, reduces the insulativity of coating.The a large amount of employing containing the chromic salts class, caused grave danger to direct labor's healthy and environment protection.
United States Patent (USP) (US5955201.1999) has been reported a kind of environment-friendly type for non-oriented electrical steel half inorganic chrome-free insulating coating, this coating is formed by a kind of sour water suspension, comprises the monoaluminum phosphate of 20～60 parts, at least one inorganic silicate particulate of 20～70 parts, the acrylic resin of 10～25 parts and suitable water-miscible organic solvent.Have that resistance to chalking, tack are good, interlamination resistance rate advantages of higher.But, because the mineral filler particle diameter does not reach below 100nm, after stress relieving, coating there will be dry linting and obscission.Chinese patent (CN1887987A) has been reported a kind of heat cured water polyvinyl acetate emulsion for cold rolled electrical steel dope and preparation method thereof, each quality component ratio is, water-based aqueous polyvinyl acetate emulsion: inorganic solution: linking agent=(40～45): (45～50): (10～12).The coating that the insulation compound made forms has good punching, when the punching of 300 times/min speed, life cycle reaches more than 1,500,000 times, but there is the problem of poor heat resistance in polyvinyl acetate (PVA), darken in the time of 150 ℃, can occur in the time of 225 ℃ to decompose and emit acetic acid.
So wish now a kind of semi-inorganic insulation of the environment-friendly type for cold rolling non-oriented electrical steel coating of preparation.This coating can provide good surface resistivity, make the interlayer power loss be down to minimum, the tack good with surface of steel plate can be provided, the die wear minimum caused the process from steel plate punching lamination processed, do not produce excessive efflorescence or on pressing equipment, do not cause the accumulation of coating at the lamination punching course, can meet with stresses annealing and carbon drop processed, and do not produce too much welding pore, the various pharmaceutical chemicalss and the resin compatible that in the time of can be with the manufacture iron core, use.And, do not contain solubility sexavalent chrome or chromic salt.
Summary of the invention
For with first inorganic electrical steel inorganic component and the poor defect of organic constituent consistency, order of the present invention is to propose the method for a kind of In Situ Compatibilization letex polymerization preparation half inorganic electric steel insulating paint.With traditional inorganic component and the direct mixed phase ratio of organic constituent, the present invention directly be take the biphosphate salt brine solution as dispersion medium, carry out the reaction of Polystyrene-acrylate in-situ emulsion polymerization in phosphate dihydrogen salt solution, prepare environment-friendly type semi-inorganic insulation coating for non-oriented electrical steel, improve organic constituent in conventional physical mixing process and be difficult to homodisperse problem, and good surface resistivity can be provided, make the interlayer power loss be down to minimum.
The present invention is achieved by the following technical solutions:
The preparation method of a kind of In Situ Compatibilization polymerization half inorganic styrene-acrylic silicon steel insulating coating, is characterized in that, the component of described insulation compound and mass fraction are:
Described dihydrogen phosphate is one or more in SODIUM PHOSPHATE, MONOBASIC, potassium primary phosphate, aluminium dihydrogen phosphate, primary magnesium phosphate,
Described nanometer SiO
2, purity is 99.5%, and median size is 15 ± 5nm, and the pH value is 5～7, and crystalline form is ball-like structure, the white solid powder,
Described acrylate monomer is a kind of in β-dimethyl-aminoethylmethacrylate, butyl methacrylate, methyl acrylate, ethyl propenoate, butyl acrylate,
Described vinylformic acid, chemical pure, density is 1.051g/cm
3, colourless transparent oil liquid,
Described vinylbenzene, chemical pure, density is 0.906g/cm
3, colourless liquid,
Described emulsifying agent is one or more in sodium lauryl sulphate, sodium laurylsulfonate, Sodium dodecylbenzene sulfonate, OP-10, tween-80,
Described OP-10, commercially available, consist of the condenses of alkylphenol and oxyethane, outward appearance is that colourless to faint yellow transparent thick liquid, producer is Aladdin reagent company limited,
Described tween-80, commercially available, chemical composition is the polyoxyethylene sorbitan fatty acid ester, and outward appearance is faint yellow extremely orange-yellow thick liquid, and producer is Chemical Reagent Co., Ltd., Sinopharm Group,
The described polyvinyl alcohol trade mark is one or more in 1788,1799,2088.
Described initiator is one or more in Potassium Persulphate or ammonium persulphate,
The aqueous solution that described sodium bicarbonate is 10% massfraction, as buffer reagent, the pH of buffering polymerization system,
Described coupling agent is one or more in silane coupling agent, titanate coupling agent, phosphoric acid ester coupling agent,
Described glycerol, chemical pure, density 1.261g/cm
3, the achromatism and clarity thick liquid;
The preparation method's of described insulation compound step is as follows:
1) 100～200 parts of dihydrogen phosphates of weighing, 0.5～2 part of nanometer SiO
2powder, 800～1000 parts of deionized waters, add there-necked flask, carries out ultrasonic dispersion 1h by ultrasonic wave and obtain dispersion liquid;
2) 20～50 parts of acrylate of weighing, 5～10 parts of vinylformic acid, 20～45 parts of vinylbenzene, 1～5 part of emulsifying agent and 0～2 part of polyvinyl alcohol, add in above-mentioned dispersion liquid, stirs;
3) by step 2) system of gained vacuumizes, and logical nitrogen protection, stir, and oil bath heats to 80 ℃, drips 0.5～2.5 part of initiator and 0.5～2.5 part of sodium bicarbonate, polyreaction 3～5h;
4) system of step 3) gained is warmed up to 85 ℃, is incubated 1 hour; Be cooled to 40 ℃ again, add 0.5～2 part of coupling agent, 10～15 parts of glycerol, stir 0.5～1h, is down to 25～30, uses 320 order mesh screens to filter discharging, obtains described insulation compound.
Beneficial effect
The present invention has following gain effect:
1, to adopt the biphosphate salt brine solution be that dispersion medium carries out in-situ emulsion polymerization in the present invention, the composite emulsion good stability of preparation, and the consistency between inorganic component and organic emulsion is good.The insulation compound shelf lives is long, can place more than 6 months.
2, the present invention uses inorganic salt solution to replace the solid inorganic filler.After coating is solidified, on the surface of electrical steel, form the glossiness dense film of one deck silvery white.The electrical steel that applies this insulating coating is difficult for producing assorted slag when welding, little to the mould loss during punch die.
3, the insulating coating that prepared by the present invention has good over-all properties, and does not contain the ROHS of European Union instruction restriction use harmful element.
The concrete embodiment of implementing
Below in conjunction with example, the present invention will be further described.
Embodiment 1
100 parts of aluminium dihydrogen phosphates of weighing, 0.5 part of nanometer SiO
2powder, 1000 parts of deionized waters, add there-necked flask, by ultrasonic wave, carries out ultrasonic dispersion 1h; 50 parts of butyl acrylates of weighing, 5 parts of vinylformic acid, 45 parts of vinylbenzene, 2.5 parts of Sodium dodecylbenzene sulfonatees and 2 parts of polyvinyl alcohol, add in above-mentioned dispersion liquid, stirs; System vacuumizes, and logical nitrogen protection, stir, and oil bath heats to 80 ℃, drips 0.5 part of ammonium persulphate and 0.5 part of sodium bicarbonate, polyreaction 3h; System is warmed up to 85 ℃, is incubated 1 hour; Be cooled to 40 ℃ again, add 0.5 part of silane coupling agent, 10 parts of glycerol, stir 0.5h, is down to room temperature, uses 320 order mesh screens to filter discharging.
By the insulation compound roller coat for preparing on treated non-oriented electrical steel sheet, 500 ℃ of 40 seconds thermofixation film forming in retort furnace.
But insulation compound stably stored 6 months (10～30 ℃, shady and cool place preserves).The insulating coating outward appearance is good; Tack is A level (according to GB/T2522-1998); Interlamination resistance is 800 Ω mm
2/ sheet (according to GB/T2522-2007).
Embodiment 2
50 parts of aluminium dihydrogen phosphates of weighing, 50 parts of primary magnesium phosphates, 0.5 part of nanometer SiO
2powder, 1000 parts of deionized waters, add there-necked flask, by ultrasonic wave, carries out ultrasonic dispersion 1h; 50 parts of butyl acrylates of weighing, 5 parts of vinylformic acid, 45 parts of vinylbenzene, 2.5 parts of Sodium dodecylbenzene sulfonatees and 2 parts of polyvinyl alcohol, add in above-mentioned dispersion liquid, stirs; System vacuumizes, and logical nitrogen protection, stir, and oil bath heats to 80 ℃, drips 0.5 part of ammonium persulphate and 0.5 part of sodium bicarbonate, polyreaction 3h; System is warmed up to 85 ℃, is incubated 1 hour; Be cooled to 40 ℃ again, add 0.5 part of silane coupling agent, 10 parts of glycerol, stir 0.5h, is down to room temperature, uses 320 order mesh screens to filter discharging.
By the insulation compound roller coat for preparing on treated non-oriented electrical steel sheet, 500 ℃ of 40 seconds thermofixation film forming in retort furnace.
But insulation compound stably stored 6 months (10～30 ℃, shady and cool place preserves).The insulating coating outward appearance is good; Tack is A level (according to GB/T2522-1998); Interlamination resistance is 650 Ω mm
2/ sheet (according to GB/T2522-2007).
Embodiment 3
100 parts of aluminium dihydrogen phosphates of weighing, 2 parts of nanometer SiO
2powder, 1000 parts of deionized waters, add there-necked flask, by ultrasonic wave, carries out ultrasonic dispersion 1h; 50 parts of butyl acrylates of weighing, 5 parts of vinylformic acid, 45 parts of vinylbenzene, 2.5 parts of Sodium dodecylbenzene sulfonatees and 2 parts of polyvinyl alcohol, add in above-mentioned dispersion liquid, stirs; System vacuumizes, and logical nitrogen protection, stir, and oil bath heats to 80 ℃, drips 0.5 part of ammonium persulphate and 0.5 part of sodium bicarbonate, polyreaction 3h; System is warmed up to 85 ℃, is incubated 1 hour; Be cooled to 40 ℃ again, add 0.5 part of silane coupling agent, 10 parts of glycerol, stir 0.5h, is down to room temperature, uses 320 order mesh screens to filter discharging.
By the insulation compound roller coat for preparing on treated non-oriented electrical steel sheet, 500 ℃ of 40 seconds thermofixation film forming in retort furnace.
But insulation compound stably stored 6 months (10～30 ℃, shady and cool place preserves).The insulating coating outward appearance is good; Tack is A level (according to GB/T2522-1998); Interlamination resistance is 750 Ω mm
2/ sheet (according to GB/T2522-2007).
Embodiment 4
100 parts of primary magnesium phosphates of weighing, 0.5 part of nanometer SiO
2powder, 1000 parts of deionized waters, add there-necked flask, by ultrasonic wave, carries out ultrasonic dispersion 1h; 25 parts of butyl acrylates of weighing, 25 parts of ethyl propenoates, 5 parts of vinylformic acid, 45 parts of vinylbenzene, 2.5 parts of Sodium dodecylbenzene sulfonatees and 2 parts of polyvinyl alcohol, add in above-mentioned dispersion liquid, stirs; System vacuumizes, and logical nitrogen protection, stir, and oil bath heats to 80 ℃, drips 0.5 part of ammonium persulphate and 0.5 part of sodium bicarbonate, polyreaction 3h; System is warmed up to 85 ℃, is incubated 1 hour; Be cooled to 40 ℃ again, add 0.5 part of silane coupling agent, 10 parts of glycerol, stir 0.5h, is down to room temperature, uses 320 order mesh screens to filter discharging.
By the insulation compound roller coat for preparing on treated non-oriented electrical steel sheet, 500 ℃ of 40 seconds thermofixation film forming in retort furnace.
But insulation compound stably stored 6 months (10～30 ℃, shady and cool place preserves).The insulating coating outward appearance is good; Tack is A level (according to GB/T2522-1998); Interlamination resistance is 800 Ω mm
2/ sheet (according to GB/T2522-2007).
Embodiment 5
100 parts of aluminium dihydrogen phosphates of weighing, 0.5 part of nanometer SiO
2powder, 1000 parts of deionized waters, add there-necked flask, by ultrasonic wave, carries out ultrasonic dispersion 1h; 50 parts of butyl acrylates of weighing, 5 parts of vinylformic acid, 45 parts of vinylbenzene, 2.5 parts of Sodium dodecylbenzene sulfonatees and 2 parts of polyvinyl alcohol, add in above-mentioned dispersion liquid, stirs; System vacuumizes, and logical nitrogen protection, stir, and oil bath heats to 80 ℃, drips 0.5 part of ammonium persulphate and 0.5 part of sodium bicarbonate, polyreaction 3h; System is warmed up to 85 ℃, is incubated 1 hour; Be cooled to 40 ℃ again, add 2 parts of silane coupling agents, 15 parts of glycerol, stir 0.5h, is down to room temperature, uses 320 order mesh screens to filter discharging.
By the insulation compound roller coat for preparing on treated non-oriented electrical steel sheet, 500 ℃ of 40 seconds thermofixation film forming in retort furnace.
But insulation compound stably stored 6 months (10～30 ℃, shady and cool place preserves).The insulating coating outward appearance is good; Tack is A level (according to GB/T2522-1998); Interlamination resistance is 800 Ω mm
2/ sheet (according to GB/T2522-2007).
By test, in above-described embodiment, insulating coating all meets following performance.
Thermotolerance: at 100%N
2under gas shield through 750 ℃ of annealing insulations after 2 hours coating without coming off, dry linting phenomenon (according to GB/T13501-92); Solidity to corrosion: test temperature is 35 ± 2 ℃, the NaCl aqueous solution brine spray that concentration is 5 ± 0.5%wt 8 hours, and non-corroding comes off; Freon resistant: be soaked in R22+ ester class refrigerator oil 240 as a child without weightlessness; Be soaked in 134a+ ester class refrigerator oil 240 hours without weightlessness (according to GB/T1739-1997); Punching: punching when burr height is 50 μ m can reach (punch die: 10mm 1,500,000 times; Die Gap: 0.6mm); Weldability:<20%cmmin
-1(the maximum welding speed while not producing bubble; Argon arc welding; Electrode: TH-W2.6mm).
From each embodiment result, In Situ Compatibilization polymerization prepared by the present invention half inorganic styrene-acrylic electric steel insulating paint, its coating can provide good surface resistivity, make the interlayer power loss be down to minimum, the tack good with surface of steel plate can be provided, do not produce excessive efflorescence or on pressing equipment, do not cause the accumulation of coating at the lamination punching course, can meet with stresses annealing and carbon drop processing, and do not contain solubility sexavalent chrome or chromic salt.
Claims (1)
1. the preparation method of In Situ Compatibilization polymerization half an inorganic styrene-acrylic silicon steel insulating coating, is characterized in that, the component of described insulation compound and mass fraction are:
Described dihydrogen phosphate is one or more in SODIUM PHOSPHATE, MONOBASIC, potassium primary phosphate, aluminium dihydrogen phosphate, primary magnesium phosphate,
Described nanometer SiO
2, purity is 99.5%, and median size is 15 ± 5nm, and the pH value is 5～7, and crystalline form is ball-like structure, the white solid powder,
Described acrylate monomer is to be selected from a kind of in β-dimethyl-aminoethylmethacrylate, butyl methacrylate, methyl acrylate, ethyl propenoate, butyl acrylate,
Described vinylformic acid, chemical pure, density is 1.051g/cm
3, colourless transparent oil liquid,
Described vinylbenzene, chemical pure, density is 0.906g/cm
3, colourless liquid,
Described emulsifying agent is one or more in sodium lauryl sulphate, sodium laurylsulfonate, Sodium dodecylbenzene sulfonate, OP-10, tween-80,
Described initiator is one or both in Potassium Persulphate or ammonium persulphate,
The aqueous solution that described sodium bicarbonate is 10% massfraction,
Described coupling agent is one or more in silane coupling agent, titanate coupling agent, phosphoric acid ester coupling agent,
Described glycerol, chemical pure, density 1.261g/cm
3, the achromatism and clarity thick liquid;
The preparation method's of described insulation compound step is as follows:
1) 100～200 parts of dihydrogen phosphates of weighing, 0.5～2 part of nanometer SiO
2powder, 800～1000 parts of deionized waters, add there-necked flask, carries out ultrasonic dispersion 1h by ultrasonic wave and obtain dispersion liquid;
2) 20～50 parts of acrylate of weighing, 5～10 parts of vinylformic acid, 20～45 parts of vinylbenzene, 1～5 part of emulsifying agent and 0～2 part of polyvinyl alcohol, add in above-mentioned dispersion liquid, stirs;
3) by step 2) system of gained vacuumizes, and logical nitrogen protection, stir, and oil bath heats to 80 ℃, drips 0.5～2.5 part of initiator and 0.5～2.5 part of sodium bicarbonate, polyreaction 3～5h;
4) system of step 3) gained is warmed up to 85 ℃, is incubated 1 hour; Be cooled to 40 ℃ again, add 0.5～2 part of coupling agent, 10～15 parts of glycerol, stir 0.5～1h, is down to 25～30, uses 320 order mesh screens to filter discharging, obtains described insulation compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407837.3A CN103468034B (en) | 2013-09-09 | 2013-09-09 | A kind of In Situ Compatibilization is polymerized the preparation method of half inorganic styrene-acrylic silicon steel insulating coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407837.3A CN103468034B (en) | 2013-09-09 | 2013-09-09 | A kind of In Situ Compatibilization is polymerized the preparation method of half inorganic styrene-acrylic silicon steel insulating coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103468034A true CN103468034A (en) | 2013-12-25 |
| CN103468034B CN103468034B (en) | 2015-10-28 |
Family
ID=49793086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310407837.3A Expired - Fee Related CN103468034B (en) | 2013-09-09 | 2013-09-09 | A kind of In Situ Compatibilization is polymerized the preparation method of half inorganic styrene-acrylic silicon steel insulating coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103468034B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497274A (en) * | 2016-11-03 | 2017-03-15 | 马鞍山钢铁股份有限公司 | Silicon steel insulating coating, its preparation method and its using method |
| CN107815155A (en) * | 2017-11-13 | 2018-03-20 | 吴花 | A kind of thin-film material coating and preparation method, application |
| CN108624153A (en) * | 2018-06-07 | 2018-10-09 | 和县华顺铸造有限公司 | A kind of coatings and preparation method thereof for electrical equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5955201A (en) * | 1997-12-19 | 1999-09-21 | Armco Inc. | Inorganic/organic insulating coating for nonoriented electrical steel |
| CN101643625A (en) * | 2009-08-28 | 2010-02-10 | 上海迪升防腐新材料科技有限公司 | Insulating paint of semi-inorganic environmental non-oriented silicon steel insulating paint and application thereof |
| CN102477235A (en) * | 2010-11-29 | 2012-05-30 | 攀钢集团钢铁钒钛股份有限公司 | Chromium-free insulating coating, electrical sheet material and preparation method thereof |
| KR20120093735A (en) * | 2011-02-15 | 2012-08-23 | 현대하이스코 주식회사 | Organic/inorganic complex emulsion resin with excellent heat resistance and corrosion resistance, method of manufacturing the organic/inorganic complex emulsion resin and coating agent for insulation using the organic/inorganic complex emulsion resin |
-
2013
- 2013-09-09 CN CN201310407837.3A patent/CN103468034B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5955201A (en) * | 1997-12-19 | 1999-09-21 | Armco Inc. | Inorganic/organic insulating coating for nonoriented electrical steel |
| CN101643625A (en) * | 2009-08-28 | 2010-02-10 | 上海迪升防腐新材料科技有限公司 | Insulating paint of semi-inorganic environmental non-oriented silicon steel insulating paint and application thereof |
| CN102477235A (en) * | 2010-11-29 | 2012-05-30 | 攀钢集团钢铁钒钛股份有限公司 | Chromium-free insulating coating, electrical sheet material and preparation method thereof |
| KR20120093735A (en) * | 2011-02-15 | 2012-08-23 | 현대하이스코 주식회사 | Organic/inorganic complex emulsion resin with excellent heat resistance and corrosion resistance, method of manufacturing the organic/inorganic complex emulsion resin and coating agent for insulation using the organic/inorganic complex emulsion resin |
Non-Patent Citations (1)
| Title |
|---|
| 李永超等: "SiO2改性热交联型丙烯酸酯乳液的合成及性能", 《太原理工大学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497274A (en) * | 2016-11-03 | 2017-03-15 | 马鞍山钢铁股份有限公司 | Silicon steel insulating coating, its preparation method and its using method |
| CN107815155A (en) * | 2017-11-13 | 2018-03-20 | 吴花 | A kind of thin-film material coating and preparation method, application |
| CN108624153A (en) * | 2018-06-07 | 2018-10-09 | 和县华顺铸造有限公司 | A kind of coatings and preparation method thereof for electrical equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103468034B (en) | 2015-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104909771B (en) | Aluminous cement combined corundum matter castable and preparation method thereof | |
| CN101591495B (en) | Non-oriented electrical steel chromium-free insulating environment-friendly coating and preparation method of coat thereof | |
| CN103695743B (en) | A kind of magnesium alloy and preparation method thereof | |
| CN101532861A (en) | A method for manufacturing water meter housing by high strength cast aluminum alloy and a product thereof | |
| CN103667841B (en) | A kind of diphase particles mixed reinforced magnesium Alloy And Preparation Method | |
| CN102760508B (en) | High-conductivity creep-resistant aluminium alloy cable conductor containing Hf and Ce and preparation method thereof | |
| CN103146962B (en) | Body of a motor car high-perforance compression casting aluminium alloy and preparation method thereof | |
| CN101358096A (en) | Insulation environment friendly paint for non-oriented electrical steel | |
| CN103468034B (en) | A kind of In Situ Compatibilization is polymerized the preparation method of half inorganic styrene-acrylic silicon steel insulating coating | |
| CN101381242A (en) | Method for preparing crucible for smelting titanium and titanium alloys | |
| CN103774070B (en) | The strong magnesium alloy plate material, preparation method of a kind of Mg-Zn-Al-Cu system superelevation | |
| CN104928507A (en) | Aluminothermic reduction method for preparing aluminum-scandium master alloy in mixed molten salt system | |
| CN106085076A (en) | A kind of low temperature resistant cracking resistance city copper casted sculpture coating and preparation method thereof | |
| CN105220055B (en) | Quasi-crystal reinforced Mg-Zn-Gd-Y magnesium alloy and preparation method thereof | |
| CN103695744B (en) | A kind of nano-particle reinforcement magnesium alloy and preparation method thereof | |
| CN104209455B (en) | A kind of refractory aggregate and consisting of stainless steel cast paint and preparation method thereof | |
| CN105154646A (en) | Annealing separant for high-magnetic-induction oriented silicon steel and preparation method thereof | |
| CN104909774B (en) | Aluminous cement combination properties of alumina-magnesia castables and preparation method thereof | |
| Han et al. | Control of ZM5 alloy ignition via PEO/aluminum phosphate composite coating | |
| CN103695745B (en) | A kind of boron nitride strengthens magnesium alloy and preparation method thereof | |
| CN106588049B (en) | Silicon-free carbon-free corundum nozzle stopper rod product for continuous casting and preparation process thereof | |
| CN103088347B (en) | Storage tank coil pipe aluminium alloy sacrificial anode material and preparation method thereof | |
| CN104801661A (en) | Preparation method for water-based paint for hydraulic part casting | |
| CN105385198B (en) | A kind of water base exfoliated casting magnesium aluminum alloy coating and preparation method thereof | |
| CN105669220A (en) | Recycled alumina-chrome brick for Ausmelt furnace inner liner, and making method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20190909 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |