CN101570397B - Porcelain enamel with superior adherence and acid resistance simultaneously and preparation method thereof - Google Patents
Porcelain enamel with superior adherence and acid resistance simultaneously and preparation method thereof Download PDFInfo
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- CN101570397B CN101570397B CN2009100530219A CN200910053021A CN101570397B CN 101570397 B CN101570397 B CN 101570397B CN 2009100530219 A CN2009100530219 A CN 2009100530219A CN 200910053021 A CN200910053021 A CN 200910053021A CN 101570397 B CN101570397 B CN 101570397B
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- enamel
- acid resistance
- porcelain enamel
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- adhesion property
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Abstract
The present invention relates to porcelain enamel with superior adherence and acid resistance simultaneously and a preparation method thereof. The preparation method comprises the following steps: (1) mixing SiO2, B2O3, Al2O3, K2O, Na2SiF6, Na2O, Li2O, CaO, CoO, NiO, CuO, Fe2O3, ZrO2, TiO2, BaO, ZnO, SrO and SnO2 according to the weight ratio, and performing melting, quenching and drying on the mixture; (2) mixing enamel frit, bentonite, clay, dielectric and water, and performing ball milling and grinding on the mixture; and (3) taking a steel plate or cast iron, coating the porcelain enamel on the steel plate in a porcelain enamel soaking mode, and drying and firing the obtained product. The method has simple process and low production cost, and the prepared porcelain enamel material simultaneously has superior adherence and acid-resistant chemical stability.
Description
Technical field
The invention belongs to enamel and preparation field thereof, particularly relate to and have a kind of possess simultaneously good adhesion property and good acid resistance enamel porcelain enamel substrate and preparation method thereof.
Background technology
General enamel coating is divided into ground-coat enamel enamel coating and cover-coat enamel enamel coating, and the ground-coat enamel enamel coating mainly works the function that promotes enamel coating and metallic substance adherence; And the cover-coat enamel enamel coating mainly plays functions such as excellent chemical stability, attractive, decorative.
Along with science and technology development, the Application Areas of enamel material is also in continuous expansion, and new requirement has been proposed also enamel material, as: enamel water heater liner, enamel firing baking oven, enamel heat exchanger etc., in these Application Areass, vitreous enamel often only is coated with once, not only requires enamel material to have the good adhesion property of ground-coat enamel simultaneously, and requires enamel material to have compact structure, the acid-resistant chemical stability excellent characteristic of cover-coat enamel.
Summary of the invention
Technical problem to be solved by this invention provides a kind of possess simultaneously good adhesion property and good acid resistance enamel and preparation method thereof, this method is easy and simple to handle, production cost is low, the enamel material compact structure of making possesses characteristics such as good adhesion property of ground-coat enamel and the good acid resistance of cover-coat enamel simultaneously.
A kind of possess simultaneously good adhesion property and good acid resistance enamel of the present invention, its component comprises: SiO
2, B
2O
3, Al
2O
3, K
2O, Na
2SiF
6, Na
2O, Li
2O, CaO, CoO, NiO, CuO, Fe
2O
3, ZrO
2, TiO
2, BaO, ZnO, SrO, SnO
2, the oxide weight percentage range is 58-61: 6-8: 0.3-3: 2-5: 2-5: 14-18: 2-5: 1-3: 0.5-1: 0.5-1: 0.5-1: 0.5-1: 0.5-1: 2-5: 3-5: 1-3: 2-5: 1-3.
A kind of possess simultaneously good adhesion property and good acid resistance enamelled preparation method of the present invention comprise:
(1) form according to the enamel prescription, put into crucible, melt under 1250～1350 ℃, quenching in the water is dropped in the good back of fusing, and oven dry makes enamel frit;
(2) the relative weight ratio is enamel frit 100, wilkinite 0.3-1, clay 1-5, dielectric medium 0.1-0.5, superfine zirconium silicate powder (less than 300 orders) 1-6, water 45-55 mixes, and ball milling, grinding got vitreous enamel in 1-2 hour;
(3) get steel plate or cast iron, the processing that eliminates rust and degrease, the oven dry, with soaking the mode of warding off steel plate is coated with above-mentioned vitreous enamel, 80-100 ℃ of oven dry, 840-860 ℃ fire porcelain enamel substrate.
It is SiO that described enamel prescription is formed weight percentage ranges
258-61, B
2O
36-8, Al
2O
30.3-3, K
2O 2-5, Na
2SiF
62-5, Na
2O 14-18, Li
2O 2-5, CaO 1-3, CoO 0.5-1, NiO 0.5-1, CuO 0.5-1, Fe
2O
30.5-1, ZrO
20.5-1, TiO
22-5, BaO 3-5, ZnO 1-3, SrO 2-5 SnO
21-3.
The size of described steel plate and cast iron is arbitrarily;
Described steel plate or cast iron eliminate rust and degrease to handle and is meant and adopts 5～10% HCl or H
2SO
4Industry fertilizer soap powder solution with 8wt%;
Described enamel material is meant that its chemical composition range is (wt%): SiO
258-65, B
2O
36-8, Al
2O
30.3-3, K
2O 2-5, Na
2SiF
62-5, Na
2O 14-18, Li
2O 2-5, CaO 1-3, CoO 0.5-1, NiO 0.5-1, CuO0.5-1, Fe
2O
30.5-1, ZrO
20.5-1, TiO
22-5, BaO 3-5, ZnO 1-3, SrO 2-5, SnO
21-3.
Repeating step (3) program makes multilayer and possesses good adhesion property of ground-coat enamel and the good acid resistance porcelain enamel substrate of cover-coat enamel simultaneously.
The present invention possesses good adhesion property of ground-coat enamel and the good acid resistance of cover-coat enamel simultaneously by making the matrix material of enamel layer and metal level.
Do not introduce the enamel adhesive agent in the general cover-coat enamel, as: cobalt oxide, nickel oxide, cupric oxide, ferric oxide etc., and do not introduce the oxide compound that chemical stability is good, price is more expensive in the base enamel, as: titanium dioxide, zirconium dioxide, strontium oxide etc.The present invention introduces oxide compounds such as the good titanium dioxide of oxide compounds such as the good cobalt oxide of adhesion property, nickel oxide, cupric oxide, ferric oxide and chemical stability, zirconium dioxide, strontium oxide, tindioxide simultaneously in vitreous enamel, not only adhesion property is good with the enamel material of this vitreous enamel preparation, and the enamel material compact structure, acid-resistant chemical stability can be good.
Beneficial effect
(1) technology is simple, production technique that need not be special, environment and equipment;
(2) production cost is low;
(3) make the enamel that possesses good adhesion property of ground-coat enamel and the good acid resistance of cover-coat enamel simultaneously.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
Develop a kind of porcelain enamel substrate that is used for the catalytic self-cleaning performance.
(1) forms SiO according to this cover-coat enamel prescription
258.5, B
2O
36.2, Al
2O
30.3, K
2O 2, Na
2SiF
62, Na
2O 14, Li
2O 2, and CaO 1, and CoO 0.5, and NiO 0.5, and CuO 0.5, Fe
2O
30.5, ZrO
21, TiO
24, BaO 3, and ZnO 1, and SrO 2, SnO
21 mixes, and various compositions is converted into quartz, feldspar, borax, titanium dioxide, soda ash, ice crystal, cobalt oxide, nickel oxide, ferric oxide, cupric oxide, titanium dioxide, zircon sand, Strontium carbonate powder, zinc oxide, tindioxide, weighing mixes, and puts into crucible, melts under 1300 ℃, quenching in the water is dropped in the good back of fusing, and pull oven dry out and make enamel frit, more than be weight ratio.
(2) step (1) is obtained enamel frit peace table composition and mix, ball milling, grinding are 1～2 hour then, the dry for standby of sieving at last.
| Chemical constitution | Enamel frit | Clay | Dielectric medium | Water | Wilkinite | Superfine zirconium silicate powder |
| The relative weight ratio | 100 | 3 | 0.1 | 50 | 0.3 | 3 |
(3) get the steel plate or the cast iron of certain thick size, the processing that eliminates rust and degrease, dry for standby.
(4) with soaking the mode of warding off to steel plate application of slip enamel, then 80 ℃ of oven dry, 860 ℃ fire enamel material, the basic mechanical design feature of this enamel material sees Table 1.
The basic mechanical design feature of table 1 enamel material
| Project | Test conditions | Technical feature | Touchstone |
| Acidproof weightlessness | 30wt％H 2SO 4Boiled 18 hours | 0.35g/m 2 | External (Howden Spain) company standard |
| The citric acid spot test | The 10wt% citric acid soaked 15 minutes | The AA level | ISO2722 |
| Anti-distilled water weightlessness (liquid phase) | In distillation boiling water, soaked 48 hours | 2.0g/m 2 | ISO2744 |
| Anti-distilled water weightlessness (gas phase) | In distillation boiling water steam, soaked 48 hours | 3.0g/m 2 | ISO2744 |
| The heatproof sudden turn of events | Be heated to 450 ℃ and be quenched to 20 ℃ | 5 times the circulation enamel coating is harmless | DEZ-MB7.12.2 |
| Adherence strength | The special-purpose adherence instrument of DEZ-MB7.10.3 | 2 grades | EN10209 |
| Coat-thickness mm | The special-purpose thickness tester of coating | ?0.15-0.30 | |
| The test of high-voltage pore | 2000 volts of alternating-current | Every square metre less than 3 places |
Embodiment 2
Develop a kind of porcelain enamel substrate that is used for the catalytic self-cleaning performance.
(1) form SiO2 59.0 according to this cover-coat enamel prescription, B2O3 6.1, and Al2O3 0.4, and K2O 2, Na2SiF6 2.5, Na2O13.5, and Li2O 2, and CaO 1, CoO 0.5, and NiO 0.5, and CuO 0.5, and Fe2O3 0.5, ZrO2 1, and TiO2 3, and BaO 3, and ZnO 1, SrO 2, and SnO2 1.5 mixes, and various compositions is converted into quartz, feldspar, borax, titanium dioxide, soda ash, ice crystal, cobalt oxide, nickel oxide, ferric oxide, cupric oxide, titanium dioxide, zircon sand, Strontium carbonate powder, zinc oxide mixes, and puts into crucible, melts under 1300 ℃, quenching in the water is dropped in the good back of fusing, and pull oven dry out and make enamel frit, more than be weight ratio.
(2) step (1) is obtained enamel frit peace table composition and mix, ball milling, grinding are 1～2 hour then, the dry for standby of sieving at last.
| Chemical constitution | Enamel frit | Clay | Dielectric medium | Water | Wilkinite | Superfine zirconium silicate powder |
| The relative weight ratio | 100 | 2 | 0.1 | 50 | 0.4 | 6 |
(3) get the steel plate or the cast iron of certain thick size, the processing that eliminates rust and degrease, dry for standby.
(4) with soaking the mode of warding off to steel plate application of slip enamel, then 80 ℃ of oven dry, 860 ℃ fire enamel material, the basic mechanical design feature of enamel material sees Table 2.
The basic mechanical design feature of table 2 enamel material
| Project | Test conditions | Technical feature | Touchstone |
| Acidproof weightlessness | 30wt％H 2SO 4Boiled 18 hours | ≤0.35g/m 2 | External (Howden Spain) company standard |
| The citric acid spot test | The 10wt% citric acid soaked 15 minutes | The AA level | ISO2722 |
| Anti-distilled water weightlessness (liquid phase) | In distillation boiling water, soaked 48 hours | 2.0g/m 2 | ISO2744 |
| Anti-distilled water weightlessness (gas phase) | In distillation boiling water steam, soaked 48 hours | 3.0g/m 2 | ISO2744 |
| The heatproof sudden turn of events | Be heated to 450 ℃ and be quenched to 20 ℃ | 5 times the circulation enamel coating is harmless | DEZ-MB7.12.2 |
| Adherence strength | The special-purpose adherence instrument of DEZ-MB7.10.3 | 2 grades | EN10209 |
| Coat-thickness mm | The special-purpose thickness tester of coating | 0.15-0.30 | |
| The test of high-voltage pore | 2000 volts of alternating-current | Every square metre less than 3 places |
Claims (5)
1. one kind possesses good adhesion property and good acid resistance porcelain enamel substrate simultaneously, and its component comprises: SiO
2, B
2O
3, Al
2O
3, K
2O, Na
2SiF
6, Na
2O, Li
2O, CaO, CoO, NiO, CuO, Fe
2O
3, ZrO
2, TiO
2, BaO, ZnO, SrO, SnO
2, the oxide weight percentage range is 58-61: 6-8: 0.3-3: 2-5: 2-5: 14-18: 2-5: 1-3: 0.5-1: 0.5-1: 0.5-1: 0.5-1: 0.5-1: 2-5: 3-5: 1-3: 2-5: 1-3.
2. preparation method who possesses good adhesion property and good acid resistance porcelain enamel substrate simultaneously comprises:
(1) with SiO
258-65, B
2O
36-8, Al
2O
30.3-3, K
2O 2-5, Na
2SiF
62-5, Na
2O 14-18, Li
2O 2-5, CaO 1-3, CoO 0.5-1, NiO 0.5-1, CuO 0.5-1, Fe
2O
30.5-1, ZrO
20.5-1, TiO
22-5, BaO 3-5, ZnO 1-3, SrO 2-5, SnO
21-3 mixes according to weight ratio, melts under 1250～1350 ℃, and quenching is dried then, gets enamel frit;
(2) the relative weight ratio is enamel frit 100, wilkinite 0.3-1, clay 1-5, dielectric medium 0.1-0.5, superfine zirconium silicate powder 1-6, water 45-55 mixes, and ball milling, grinding got vitreous enamel in 1-2 hour;
(3) get steel plate or cast iron, the processing that eliminates rust and degrease, the oven dry, with soaking the mode of warding off steel plate is coated with above-mentioned vitreous enamel, 80-100 ℃ of oven dry, 840-860 ℃ fire porcelain enamel substrate.
3. a kind of preparation method who possesses good adhesion property and good acid resistance porcelain enamel substrate simultaneously according to claim 2, it is characterized in that: the size of described step (3) steel plate or cast iron is arbitrarily.
4. a kind of preparation method who possesses good adhesion property and good acid resistance porcelain enamel substrate simultaneously according to claim 2 is characterized in that: described step (3) steel plate or cast iron eliminate rust and degrease and handles is to adopt 5～10% HCl or H
2SO
4Industry fertilizer soap powder solution with 8wt%.
5. a kind of preparation method who possesses good adhesion property and good acid resistance porcelain enamel substrate simultaneously according to claim 2 is characterized in that: repeating step (3) program makes multilayer and possesses good adhesion property of ground-coat enamel and the good acid resistance porcelain enamel substrate of cover-coat enamel simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100530219A CN101570397B (en) | 2009-06-12 | 2009-06-12 | Porcelain enamel with superior adherence and acid resistance simultaneously and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100530219A CN101570397B (en) | 2009-06-12 | 2009-06-12 | Porcelain enamel with superior adherence and acid resistance simultaneously and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101570397A CN101570397A (en) | 2009-11-04 |
| CN101570397B true CN101570397B (en) | 2011-06-08 |
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|---|---|---|---|
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- 2009-06-12 CN CN2009100530219A patent/CN101570397B/en not_active Expired - Fee Related
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