CN106957149A - Frit for porcelain enamel - Google Patents
Frit for porcelain enamel Download PDFInfo
- Publication number
- CN106957149A CN106957149A CN201710308622.4A CN201710308622A CN106957149A CN 106957149 A CN106957149 A CN 106957149A CN 201710308622 A CN201710308622 A CN 201710308622A CN 106957149 A CN106957149 A CN 106957149A
- Authority
- CN
- China
- Prior art keywords
- frit
- glass
- sio
- porcelain enamel
- ceo
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
Abstract
The invention discloses a kind of frit for porcelain enamel, by weight percentage, it is made up of following components:SiO250~65%, Al2O320~30%, B2O34~15%, Na2O 1.2~1.5%, K2O 1.3~1.6%, CeO21~10%, CeF32~5%.The present invention adds CeO in conventional enamel glaze2And CeF3The hardness of glaze and the adherence with steel plate can be improved, moreover it is possible to effectively prevent the generation of fishscale.
Description
Technical field
The present invention relates to a kind of glaze, and in particular to a kind of frit for porcelain enamel.
Background technology
Enamel coating method is that frit is coated in into surface of steel plate, by high-temperature roasting, enamel layer is sent out with steel matrix
Raw reciprocation, forms coating process that is fine and close and being firmly combined with matrix.Frit for porcelain enamel is different from general ceramic glaze, and it is dashed forward
The characteristics of going out is the frit for porcelain enamel not only surface smooth and beautiful appearance with glass performance, and with very excellent corrosion resistance, wear-resisting
The property such as property, high temperature resistant, non-conductive property.It, which can be effectively improved, in metal base surface one layer of enamel layer of firing uses the longevity
Life, and the contradiction of mechanical behavior under high temperature that stainless-steel sheet can not be provided simultaneously with and resistance to high temperature corrosion performance can be solved.Often
The enamel coating of rule is all relatively thin, main to play a part of to protect parent metal.
Enamel coating steel plate there is also it is following two notable the problem of, first, steel plate when burning till, steel be in A condition,
There is great solubility to hydrogen, a large amount of hydrogen produced in sintering process can be absorbed.But steel plate meeting in cooling procedure
Occurs A-F phase transformation, the ability of parent metal dissolved hydrogen declines to a great extent, and the hydrogen separated out from steel is gathered in metal substrate with warding off
The intersection of enamel coating, extension over time, the concentration more and more higher of hydrogen, when pressure exceedes the adhesion of enamel layer, enamel
Layer will produce fishscale;Second, steel plate and enamel are two kinds of different compositions, different structure, the material of different properties, steel plate with
Frit for porcelain enamel adherence is poor, easily occurs enamel layer and comes off.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of frit for porcelain enamel, the glaze hardness is high, close with stainless steel plate
The property is good, moreover it is possible to effectively prevent the appearance of fishscale.
The technical scheme that the present invention is provided is to provide a kind of frit for porcelain enamel, by weight percentage, is made up of following components:
SiO250~65%, Al2O320~30%, B2O34~15%, Na2O 1.2~1.5%, K2O 1.3~
1.6%th, CeO21~10%, CeF32~5%.
SiO2It is base stock, the skeleton of enamel can be formed.Si-O keys bonding force is strong, and skeleton is complete, heat endurance, chemically-resistant
Corrosive nature is good.
Al2O3So that frit for porcelain enamel viscosity under firing temperature increases, nucleus is formed smoothly, and crystal, which is grown up, to be obstructed, and forms big
The microstructure of amount, improves the hardness of enamel layer.
B2O3With less surface tension and low modulus of elasticity, thus the mobility of melt is may advantageously facilitate, raising is warded off
Glossiness, sophistication and the elasticity of porcelain.Also have fusing point low, play the effect of cosolvent.
K2O、Na2O is alkali metal oxide, is extremely strong cosolvent.
CeO2In Ce4+ can replace SiO2In Si4+, and Ce4+4f electronic shell energy is suitable with its 6S layers of electron energy,
Electronics makes Ce-O keys have certain pliability easily in the two electronics Inter-layer motions.Therefore, when enamel layer is cooled down, steel
When plate basic unit discharges hydrogen, Ce-O keys can extend, crystal space increase, can provide aggregation space to the hydrogen of release,
Fishscale can effectively be prevented.
CeO2Enamel layer viscosity can be improved when burning till, nucleus is smoothly formed, prevent crystal from growing up, form substantial amounts of crystallite
Structure.CeF3Addition enamel layer melt viscosity can be made to increase rapidly in cooling procedure is burnt till, greatly improve in enamel layer
Micro crystal.Both add simultaneously, can substantially increase the hardness of enamel layer.
CeO2And CeF3Presence substantially increase dissolvings of the FeO in enamel layer, the catalyst as interfacial reaction makes boundary
Face reaction is accelerated, promotion FeO and silicate reaction generation silicic acid iron compound in enamel layer, silicic acid iron compound formation anchor-shaped,
So that enamel layer is tightly held on matrix, the adherence of enamel layer and matrix is added.
Preferably, the percentage by weight of each component is:SiO260%th, Al2O325%th, B2O37.2%th, Na2O
1.3%th, K2O 1.5%, CeO22%th, CeF33%.
Above-mentioned frit for porcelain enamel follows the steps below preparation:
1) SiO of formula ratio is weighed2、Al2O3And B2O3It is pre-mixed ball milling, mixture homogeneity >=99.5%;
2) by other raw materials add step 1) mixed material in, mixing and ball milling, mixture homogeneity >=98%;
3) by step 2) mixed material feeding converter or tank furnace in found, temperature control is at 1250~1280 DEG C;
4) drilled a blasting hole after after material completely melting, the glass fiber that the liquid glass of melting is quickly pulled into 1.2~1.5m is carried out
Detection, it is to found completion to have 2~3 sections in the 1m of glass fiber;
5) glass precursor solution melted is quickly poured into glass-hardened in water, produced after being filtered dry.
Compared with prior art, the present invention adds CeO in conventional enamel glaze2And CeF3The hardness of glaze can be improved
And the adherence with steel plate, moreover it is possible to effectively prevent the generation of fishscale.
Embodiment
The present invention is further elaborated for specific examples below, but not as a limitation of the invention.
Following percentage is percetage by weight.
Embodiment 1
Formula:
SiO250%th, Al2O320%th, B2O315%th, Na2O 1.2%, K2O 1.3%, CeO210%th, CeF3
2.5%.
Preparation method:
1) SiO of formula ratio is weighed2、Al2O3And B2O3It is pre-mixed ball milling, mixture homogeneity >=99.5%;
2) by other raw materials add step 1) mixed material in, mixing and ball milling, mixture homogeneity >=98%;
3) by step 2) mixed material feeding converter or tank furnace in found, temperature control is at 1250 DEG C;
4) drilled a blasting hole after after material completely melting, the glass fiber that the liquid glass of melting is quickly pulled into 1.2 is detected,
It is to found completion to have 2 sections in the 1m of glass fiber;
5) glass precursor solution melted is quickly poured into glass-hardened in water, produced after being filtered dry.
Embodiment 2
Formula:
SiO265%th, Al2O320%th, B2O38.9%th, Na2O 1.5%, K2O 1.6%, CeO21%th, CeF32%.
Preparation method:
1) SiO of formula ratio is weighed2、Al2O3And B2O3It is pre-mixed ball milling, mixture homogeneity >=99.5%;
2) by other raw materials add step 1) mixed material in, mixing and ball milling, mixture homogeneity >=98%;
3) by step 2) mixed material feeding converter or tank furnace in found, temperature control is at 1280 DEG C;
4) drilled a blasting hole after after material completely melting, the glass fiber that the liquid glass of melting is quickly pulled into 1.5m is detected,
It is to found completion to have 3 sections in the 1m of glass fiber;
5) glass precursor solution melted is quickly poured into glass-hardened in water, produced after being filtered dry.
Embodiment 3
Formula:
SiO260%th, Al2O325%th, B2O37.2%th, Na2O 1.3%, K2O 1.5%, CeO22%th, CeF33%.
Preparation method:
1) SiO of formula ratio is weighed2、Al2O3And B2O3It is pre-mixed ball milling, mixture homogeneity >=99.5%;
2) by other raw materials add step 1) mixed material in, mixing and ball milling, mixture homogeneity >=98%;
3) by step 2) mixed material feeding converter or tank furnace in found, temperature control is at 1260 DEG C;
4) drilled a blasting hole after after material completely melting, the glass fiber that the liquid glass of melting is quickly pulled into 1.3m is detected,
It is to found completion to have 2 sections in the 1m of glass fiber;
5) glass precursor solution melted is quickly poured into glass-hardened in water, produced after being filtered dry.
Embodiment 4
Formula:
SiO255%th, Al2O330%th, B2O34%th, Na2O 1.5%, K2O 1.5%, CeO23%th, CeF35%.
Preparation method:
1) SiO of formula ratio is weighed2、Al2O3And B2O3It is pre-mixed ball milling, mixture homogeneity >=99.5%;
2) by other raw materials add step 1) mixed material in, mixing and ball milling, mixture homogeneity >=98%;
3) by step 2) mixed material feeding converter or tank furnace in found, temperature control is at 1280 DEG C;
4) drilled a blasting hole after after material completely melting, the glass fiber that the liquid glass of melting is quickly pulled into 1.2m is detected,
It is to found completion to have 3 sections in the 1m of glass fiber;
5) glass precursor solution melted is quickly poured into glass-hardened in water, produced after being filtered dry.
Reference examples 1
Formula:
SiO260%th, Al2O325%th, B2O37.2%th, Na2O 1.3%, K2O 1.5%, ZrO24%th, CoO 1%.
Preparation method:
1) SiO of formula ratio is weighed2、Al2O3And B2O3It is pre-mixed ball milling, mixture homogeneity >=99.5%;
2) by other raw materials add step 1) mixed material in, mixing and ball milling, mixture homogeneity >=98%;
3) by step 2) mixed material feeding converter or tank furnace in found, temperature control is at 1260 DEG C;
4) drilled a blasting hole after after material completely melting, the glass fiber that the liquid glass of melting is quickly pulled into 1.3m is detected,
It is to found completion to have 2 sections in the 1m of glass fiber;
5) glass precursor solution melted is quickly poured into glass-hardened in water, produced after being filtered dry.
Mild steel Q235A (C by above-described embodiment 1~4 and the frit for porcelain enamel of reference examples 1 using thickness as 2.3mm
0.2w%, S 0.05w%, P 0.04w%, Mn 0.8w%, Fe surplus) it is made enamelled pressed steel for matrix, carry out tack, resistance to
Mill property and corrosion resistance detection.
1st, adhesive force is tested:
Marking 100 lattices of uniform size at intervals of 1mm with sharp blade on enamelled pressed steel surface, (cut is deep
Degree control is ensureing the exposure of film lower substrate metal), the lattice number N1 that frit for porcelain enamel comes off, width is sticked in the frame region on film
The adhesive tape for 24mm is spent, and ensures to be tightly combined between adhesive tape and the film of grid.After 5min, with a vertical face immediately
Adhesive tape is opened, and the lattice number N2 that statistics film comes off again.Appraisal procedure is as follows:Using hundred-mark system, film adhesive force fraction
=100- (N1+N2), adhesive force fraction is bigger, illustrates that adhesive force is better.
2nd, wearability test:
Enamelled pressed steel is put into oscillating mill after continuous shaking grinding 2h and taken out, the corner angle and table of enamelled pressed steel are observed
Whether the film layer in face, which has, comes off.
3rd, corrosion resistance is tested:
Enamelled pressed steel is placed in salt air corrosion case, with after 5% sodium-chloride water solution splash 2h at 35 DEG C, taken out again
Be placed in the climatic chamber that another temperature is 40 degree, relative humidity is 80%, observe its how long after surface
There is exception, the time is longer, illustrates that the corrosion resistance of film layer is better.
Result of the test see the table below 1
As can be seen here, the enamelled pressed steel that frit for porcelain enamel of the present invention is made has excellent adherence, wearability and corrosion-resistant
Property.
Claims (3)
1. frit for porcelain enamel, it is characterised in that:By weight percentage, it is made up of following components:SiO250~65%, Al2O3 20
~30%, B2O34~15%, Na2O 1.2~1.5%, K2O 1.3~1.6%, CeO21~10%, CeF32~5%.
2. frit for porcelain enamel according to claim 1, it is characterised in that:The percentage by weight of each component is:SiO260%th,
Al2O325%th, B2O37.2%th, Na2O 1.3%, K2O 1.5%, CeO22%th, CeF33%.
3. frit for porcelain enamel according to claim 1 or 2, it is characterised in that:Follow the steps below preparation:
1) SiO of formula ratio is weighed2、Al2O3And B2O3It is pre-mixed ball milling, mixture homogeneity >=99.5%;
2) by other raw materials add step 1) mixed material in, mixing and ball milling, mixture homogeneity >=98%;
3) by step 2) mixed material feeding converter or tank furnace in found, temperature control is at 1250~1280 DEG C;
4) drilled a blasting hole after after material completely melting, the glass fiber that the liquid glass of melting is quickly pulled into 1.2~1.5m is detected,
It is to found completion to have 2~3 sections in the 1m of glass fiber;
5) glass precursor solution melted is quickly poured into glass-hardened in water, produced after being filtered dry.
Priority Applications (1)
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CN201710308622.4A CN106957149A (en) | 2017-05-04 | 2017-05-04 | Frit for porcelain enamel |
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CN201710308622.4A CN106957149A (en) | 2017-05-04 | 2017-05-04 | Frit for porcelain enamel |
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CN106957149A true CN106957149A (en) | 2017-07-18 |
Family
ID=59482150
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109549545A (en) * | 2019-01-17 | 2019-04-02 | 佛山市昂达电器有限公司 | The preparation method and electric heating towel rack of electric heating towel rack |
CN110698065A (en) * | 2019-09-05 | 2020-01-17 | 华庚新材料科技(嘉兴)有限公司 | Steel pipe with glass lining |
CN111116044A (en) * | 2018-10-31 | 2020-05-08 | Lg电子株式会社 | Enamel composition and method for preparing same |
US11274060B2 (en) | 2019-02-22 | 2022-03-15 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
US11292743B2 (en) | 2018-11-09 | 2022-04-05 | Lg Electronics Inc. | Enamel composition, method of preparing same, and cooking appliance |
US11396472B2 (en) | 2019-02-22 | 2022-07-26 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
US11401201B2 (en) | 2019-02-22 | 2022-08-02 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
US11479500B2 (en) | 2019-02-22 | 2022-10-25 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
US11773007B2 (en) | 2019-02-22 | 2023-10-03 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
US11780766B2 (en) | 2019-02-22 | 2023-10-10 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
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US5296415A (en) * | 1991-07-26 | 1994-03-22 | Bayer Ag | Opacified enamel for direct-on enamelling on unpickled steel plate |
CN1519213A (en) * | 2003-01-22 | 2004-08-11 | 强 王 | Method for producing blackboard and whiteboard made from enamel in super strength, and glaze of enamel |
CN101734858A (en) * | 2008-11-07 | 2010-06-16 | 肖特股份有限公司 | Lead and cadmium-free glass composite for coating porcelain glaze and enamel on and decorating glass or glass ceramics |
CN101905951A (en) * | 2009-06-04 | 2010-12-08 | 梁梦林 | One-time-coating enamel and preparation method |
CN103864303A (en) * | 2014-03-12 | 2014-06-18 | 临沂宏业化工设备有限公司 | Glass lining ground coat |
CN104891805A (en) * | 2015-05-25 | 2015-09-09 | 广东美的厨房电器制造有限公司 | Enamel material, and preparation method and application thereof |
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Patent Citations (6)
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US5296415A (en) * | 1991-07-26 | 1994-03-22 | Bayer Ag | Opacified enamel for direct-on enamelling on unpickled steel plate |
CN1519213A (en) * | 2003-01-22 | 2004-08-11 | 强 王 | Method for producing blackboard and whiteboard made from enamel in super strength, and glaze of enamel |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111116044A (en) * | 2018-10-31 | 2020-05-08 | Lg电子株式会社 | Enamel composition and method for preparing same |
US11261124B2 (en) | 2018-10-31 | 2022-03-01 | Lg Electronics Inc. | Enamel composition and method of preparing the same |
US11292743B2 (en) | 2018-11-09 | 2022-04-05 | Lg Electronics Inc. | Enamel composition, method of preparing same, and cooking appliance |
CN109549545A (en) * | 2019-01-17 | 2019-04-02 | 佛山市昂达电器有限公司 | The preparation method and electric heating towel rack of electric heating towel rack |
US11274060B2 (en) | 2019-02-22 | 2022-03-15 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
US11396472B2 (en) | 2019-02-22 | 2022-07-26 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
US11401201B2 (en) | 2019-02-22 | 2022-08-02 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
US11479500B2 (en) | 2019-02-22 | 2022-10-25 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
US11773007B2 (en) | 2019-02-22 | 2023-10-03 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
US11780766B2 (en) | 2019-02-22 | 2023-10-10 | Lg Electronics Inc. | Enamel composition, method for preparing enamel composition, and cooking appliance |
CN110698065A (en) * | 2019-09-05 | 2020-01-17 | 华庚新材料科技(嘉兴)有限公司 | Steel pipe with glass lining |
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Application publication date: 20170718 |