CN108623158A - A kind of acidproof enamel enamel and preparation method thereof - Google Patents
A kind of acidproof enamel enamel and preparation method thereof Download PDFInfo
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- CN108623158A CN108623158A CN201810804124.3A CN201810804124A CN108623158A CN 108623158 A CN108623158 A CN 108623158A CN 201810804124 A CN201810804124 A CN 201810804124A CN 108623158 A CN108623158 A CN 108623158A
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- acidproof
- glaze slip
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- 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
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/06—Frit compositions, i.e. in a powdered or comminuted form containing halogen
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
- C23D5/02—Coating with enamels or vitreous layers by wet methods
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- 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
- C03C2207/00—Compositions specially applicable for the manufacture of vitreous enamels
- C03C2207/04—Compositions specially applicable for the manufacture of vitreous enamels for steel
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Abstract
The present invention relates to a kind of acidproof enamel enamel, belong to enamel enamel technical field.By weight percentage, the acidproof enamel enamel includes following components：SiO255.0%~67.0%, alkali metal oxide R2O 17.0%~19.5%, CaO 2.0%~5.0%, Al2O31.0%~3.0%, B2O33.0%~5.0%, BaO 2.0% 4.0%, MgO 0.5%~2.0%, TiO22.0~4.0%, Fe2O30.5%~1.5%, Co3O41.0%~2.0%, NiO 0.5%~2.0%, CuO 0.5%~2.0%, F21.0%~3.0%.The enamel of the present invention has the characteristics that acid-resistant chemical stability, excellent with the adhesion property of base material, suitable for doing the surface protection of the steel plates such as mild steel, weather-resistant steel plate.
Description
Technical field
The invention belongs to the preparing technical field of enamel enamel more particularly to a kind of acid-resistant chemical stability be good and base
Acidproof enamel enamel for the features such as material adhesion property is excellent and preparation method thereof.
Background technology
Enamel is that the high enamel of silicone content is coated on metallic substrate surface, and by high temperature enamel firing, one kind of formation is multiple
Condensation material.Two-fold advantage with class glazed chemical stability and metal strength, at present in building decoration, chemical industry etc.
Field plays a significant role.
Substrate mass used by enamel is directly related to the performance of enamelware, and currently used glazed substrate has steel
Material, cast iron, aluminium and its alloy and titanium alloy etc., wherein being the product accounting of base material up to 90% or more using steel.Chemically
From the point of view of composition, enamel need to meet C content using steel plate and be no more than 0.12wt.%, and Si and P content are no more than 0.04wt.%.But often
The Si of weather-proof steel, P content are advised significantly more than this range, or even contains Cr elements.And Si contents it is exceeded directly affect enamel coating and
Adherence between base material, or even generate the problems such as squama is quick-fried；There is the problems such as segregation, be mingled in the exceeded steel plate that is easy to cause of P content；Cr
Content is exceeded to cause enamelware to occur the quick-fried phenomenon of squama after enamel firing.
To improve the acid resistance of enamelware, most common method is to improve Network former in raw material composition to contain
Amount, such as SiO2、Al2O3Deng content, but these greatly increase melting and the enamel firing temperature of enamel at branch, to influence to give birth to
Produce the service life of equipment.Therefore it needs that alkali metal oxide is added to reduce melting and enamel firing temperature, but alkali metal aoxidizes
Object can be substantially reduced the chemical stability of enamel, influence sequence Li2O<Na2O<K2O, Li2O is better than in fluxing aspect effect
Na2O、K2O.Additionally due to Li+Radius is small, field strength is big, also has the characteristics that improve enamel coating compactness, but based on lithia
Want the enamel production cost of fluxing agent higher, which limits its a large amount of uses.Therefore, it is necessary to study a kind of new acidproof
Enamel enamel.
Invention content
For the above-mentioned prior art the problem of, the present invention is intended to provide a kind of acidproof enamel enamel and its preparation
Method, enamel of the present invention have the characteristics that acid-resistant chemical stability is good, excellent with the adhesion property of base material, it is found by test
Resistance to boiling sulfuric acid performance is only smaller than 3.76/g.m2.d-1, and nothing falls off；Suitable for doing the surface of the steel plates such as mild steel, weather-resistant steel plate
Protection..
An object of the present invention is to provide a kind of acidproof enamel enamel.
The second object of the present invention is to provide a kind of method of acidproof enamel enamel.
The third object of the present invention is to provide a kind of application of acidproof enamel enamel and preparation method thereof.
For achieving the above object, specifically, the invention discloses following technical proposals：
First, the invention discloses a kind of acidproof enamel enamel, by weight percentage, the acidproof enamel enamel
Including following components：SiO255.0%~67.0%, alkali metal oxide R2O 17.0%~19.5%, CaO 2.0%~
5.0%, Al2O31.0%~3.0%, B2O33.0%~5.0%, BaO 2.0%-4.0%, MgO 0.5%~2.0%,
TiO22.0~4.0%, Fe2O30.5%~1.5%, Co3O41.0%~2.0%, NiO 0.5%~2.0%, CuO
0.5%~2.0%, F21.0%~3.0%.
Preferably, the alkali metal oxide R2O includes sodium oxide molybdena (Na2O), potassium oxide (K2O), lithia (Li2O in)
Any one or a few.
Preferably, it is (3-8) that the alkali metal oxide, which is molar ratio,:(0.5-2):The Na of (0.5-2)2O、K2O、Li2O
Mixture.
Preferably, it is 6 that the alkali metal oxide, which is molar ratio,:(1-1.5):The Na of (1-1.5)2O、K2O、Li2O's is mixed
Close object.
Further, the acidproof enamel enamel further includes SrO, it is preferred that the content of SrO is acidproof enamel enamel
The 0.5-2.0% of total weight.The effect of Sr is mainly fluxing under the premise of not reducing acid resistance, ionic radius larger Sr and
Electronegativity, be used cooperatively with Ca has good mixed alkaline earth benefit as network outer body.
Further, the acidproof enamel enamel further includes ZrO2, it is preferred that the ZrO2Content be acidproof to ward off glass
The 0.5-2.0% of glass enamel total weight.Zirconium oxide ZrO2Into in the network structure in oxygen-octahedron, can Strengthens network knot
Intensity is closed, compactness is improved, it is beneficial to the chemical stability and hardness that improve acidproof enamel for glassed steel.
Further, the acidproof enamel enamel further includes CeO2, it is preferred that the CeO2Content be acidproof to ward off glass
The 0.5-2.0% of glass enamel total weight.Cerium oxide CeO2It is Ce to exist into coating with two kinds of valence states2+And Ce4+, and be sintered
Easily receive electronics in the process, enamel coating tissue is further fine and close, and surface is smooth.
Aluminium oxide (Al2O3) can be improved enamel enamel compactness, chemical stability and the machinery for improving enamel is strong
Degree, but excessive aluminium oxide Al2O3Cause the firing temperature of enamel excessively high, it is thus determined that its weight ratio is in 1.0-3.0%.
Boron oxide B2O3It is remarkably improved the temperature flowing of enamel, improves adherence, improve porcelain facing glossiness, while
Network former can be used as in a certain range again, but the coefficient of thermal expansion of enamel can be reduced, therefore introduction volume is determined as 3.0-
5.0%.
Cobalt oxide Co3O4With nickel oxide NiO mainly as adhesive agent, the adherence strength of enamel and base material is improved.
Secondly, the invention discloses a kind of preparation methods of acidproof enamel enamel, include the following steps：
(1) it will be melted after acidproof enamel enamel each component mixing, after the uniform wire drawing of melt is without node, stand
Water quenching in cold water is poured by the drying of enamel frit, to grind, still aging at enamel frit, glaze slip is made；
(2) glaze slip in step (1) is coated in substrate material surface, drying, firing, cooling are to get acidproof enamel
Enamel.
In step (1), the glass melting temperature is 1450-1550 DEG C.
In step (2), the preparation method of the glaze slip is：After enamel frit is dried, by itself and dispersant, suspension
Agent, electrolyte mixed grinding are 100 parts its ratio be enamel frit at the glaze slip of setting fineness and unit weight, and dispersant is water,
Adding proportion is 40~60 parts, and suspending agent is clay or bentonite or both mixture, and adding proportion is 3~7 parts, electrolyte
For sodium nitrite and borax, total weight is 0.5~1.0 part, after fine grinding the granularity of glaze slip should cross 325 mesh screen over-size it is few
In 0.5%.It is stored at room temperature ageing for 24 hours, obtains glaze slip, the unit weight of glaze slip is controlled in 1.55~1.65g/cm3, apply 4 glasss of viscosity
Control was at 23~28 seconds.
In step (2), the firing temperature is 890 ± 20 DEG C, time 8-10min.
Preferably, in step (2), method is warded off using leaching, glaze slip is equably applied to substrate material surface.
Preferably, in step (2), described matrix material includes：Mild steel, weather-resistant steel plate.
Preferably, in step (2), the temperature of the drying is：70 DEG C, the time is 1~3 hour.
Finally, the invention discloses acidproof enamel enamel and preparation method thereof answering in building decoration, chemical field
With.
It is characteristic of the invention that：It examines and steps on steel and warded off with surface in the environment of high temperature high corrosion such as flue gas heat exchange, needing
Porcelain coating is used cooperatively the acid resistance that can be only achieved good effect, especially enamel and enamel and examines the combination densification for stepping on steel
Property.The present invention develops a kind of SiO by component proportion2Percentage composition be higher than 55% enamel formula, than conventional formulation
Height, but too high levels can cause melting and firing temperature excessively high, and the high temperature viscosity of enamel increases, and enamel coating surface is caused to lack
It falls into and increases, it is poor with the binding performance of metallic matrix.By the component proportion of specific quantity, double alkaline earth effects and Zr are given full play to
Repair to vitreum effectively controls high temperature viscosity, the coefficient of expansion, adhesive force and the acid resistance of enamel, resistance to improving
While acid energy, the adherence of enamel layer is realized.
Compared with prior art, the advantageous effect that the present invention obtains is：
(1) contain suitable adhesive agent in the component of acidproof enamel enamel provided by the invention, adjust trace element
Component proportion, realizes the adherence of enamel and weather-proof steel matrix, therefore overcomes weather-resistant steel plate adherence well in sintering process
The characteristics of poor performance.
(2) compared with Technical comparing, invention introduces rare earth elements, do not improve the enamel firing temperature of enamel not only, pass through
Strengthening action to glass network body structure improves the compactness of enamel so that the chemical stability of enamel significantly improves.
(3) present invention utilizes " mixed alkali effect ", to improve enamel firing temperature, increases substantially the resistance to of enamel
Acid energy.
(4) enamel of the invention has the characteristics that acid-resistant chemical stability, excellent with the adhesion property of base material, by testing
It was found that its resistance to boiling sulfuric acid performance is only smaller than 3.76/g.m2.d-1, and nothing falls off；Suitable for doing the steel plates such as mild steel, weather-resistant steel plate
Surface protection；It is particularly suitable for doing incrustation and protection on Q355NH steel.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.
Fig. 1 is the enamel enamel coating section SEM figures of embodiment 3；Wherein, 1- enamel layers, 2- metallic matrixes and enamel interface,
3- metallic matrixes.
Fig. 2 is the enamel enamel coating section SEM figures of embodiment 5；Wherein, 1- enamel layers, 2- metallic matrixes and enamel interface,
3- metallic matrixes.
Specific implementation mode
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
As background technology is introduced, in the prior art, to improve the acid resistance of enamelware, most common method
It is the content for improving Network former in raw material composition, such as SiO2、Al2O3Deng content, but these greatly increase enamel at branch
Melting and enamel firing temperature, to influence the service life of production equipment, for this purpose, generally by be added alkali metal oxide come
Melting and enamel firing temperature are reduced, but alkali metal oxide can be substantially reduced the chemical stability of enamel；Therefore, the present invention proposes
A kind of acidproof enamel enamel and preparation method thereof, below in conjunction with the accompanying drawings and specific implementation mode does further the present invention
It is bright.
Clay and bentonite used in the embodiment of the present invention are purchased from China Kaolin Clay Co., Ltd..
Embodiment 1
A kind of preparation method of acidproof enamel enamel, includes the following steps：
(1) by acidproof enamel enamel each component mixing, the acidproof enamel enamel includes the group of following weight composition
Point：SiO256.80%, R2O 19.50%, CaO 4.50%, Al2O32.00%, B2O34.00%, BaO 3.00%, SrO
1.00%, MgO 1.00%, TiO22.50%, Fe2O30.60%, Co3O41.50%, NiO 1.00%, CuO 0.60%,
F22.00%.Wherein R2O selects Na2O、K2O and Li2O, and three kinds of material mol ratios are 8:1:0.6.
(2) the acidproof enamel enamel group after mixing is placed in kiln, is melted at 1450 DEG C, waits for melt
After uniform wire drawing is without node, water quenching in cold water is poured into immediately and dries enamel frit to the no moisture of surface at enamel frit, with
At the glaze slip of setting fineness and unit weight, ratio is 100 parts of enamel frit, dispersant for dispersant, suspending agent, electrolyte mixed grinding
For water, additive amount is 60 parts, and suspending agent is that bentonite is, additive amount is 7 parts, and electrolyte is the mixed of sodium nitrite and borax
Object is closed, total addition level is 1.0 parts (0.5 part of sodium nitrite, 0.5 part of boraxs), and the granularity of glaze slip should cross 325 purposes after fine grinding
Screen over-size is not more than 0.5%.It is stored at room temperature ageing for 24 hours, obtains glaze slip, the unit weight of glaze slip is controlled in 1.55~1.65g/cm3, apply
4 glasss of viscosity was controlled at 23~28 seconds.
(3) glaze slip in step (2) is coated uniformly on to the surface of weathering steel Q355NH, stands 30min postpositions at room temperature
It is 3 hours dry at 70 DEG C in drying box, then obtained after 890 ± 20 DEG C of kiln kiln roasting 10min, cooling of coming out of the stove
The acid-proof enamel of one-time sintering technology is to get acidproof enamel enamel.
Embodiment 2
A kind of preparation method of acidproof enamel enamel, includes the following steps：
(1) by acidproof enamel enamel each component mixing, the acidproof enamel enamel includes the group of following weight composition
Point：SiO256.12%, R2O 19.27%, CaO 4.45%, Al2O31.98%, B2O33.95%, BaO 2.96%, SrO
0.99%, MgO 0.99%, TiO22.47%, Fe2O30.59%, Co3O41.48%, NiO 0.99%, CuO 0.59%,
F21.98%, CeO21.19%.Wherein R2O selects Na2O、K2O and Li2O, and three kinds of material mol ratios are 4:2:0.5.
(2) the acidproof enamel enamel group after mixing is placed in kiln, is melted at 1500 DEG C, waits for melt
After uniform wire drawing is without node, water quenching in cold water is poured into immediately and dries enamel frit to the no moisture of surface at enamel frit, with
Dispersant, suspending agent, electrolyte mixed grinding are 100 parts its ratio be enamel frit at the glaze slip of setting fineness and unit weight, point
Powder is water, and additive amount is 40 parts, and suspending agent is clay, and additive amount is 3 parts, and electrolyte is the mixed of sodium nitrite and borax
Object is closed, total addition level is 0.5 part (0.2 part of sodium nitrite, 0.3 part of borax), and the granularity of glaze slip should cross 325 purposes after fine grinding
Screen over-size is not more than 0.5%.It is stored at room temperature ageing for 24 hours, obtains glaze slip, the unit weight of glaze slip is controlled in 1.55~1.65g/cm3, apply
4 glasss of viscosity was controlled at 23~28 seconds.
(3) glaze slip in step (2) is coated uniformly on to the surface of weathering steel Q355NH, stands 30min postpositions at room temperature
It is 2 hours dry at 70 DEG C in drying box, then obtained after 890 ± 20 DEG C of kiln kiln roasting 10min, cooling of coming out of the stove
The acid-proof enamel of one-time sintering technology is to get acidproof enamel enamel.
Embodiment 3
A kind of preparation method of acidproof enamel enamel, includes the following steps：
(1) by acidproof enamel enamel each component mixing, the acidproof enamel enamel includes the group of following weight composition
Point：SiO256.23%, R2O 19.31%, CaO 4.46%, Al2O31.98%, B2O33.96%, BaO 2.97%, SrO
0.99%, MgO 0.99%, TiO22.48%, Fe2O30.59%, Co3O41.49%, NiO 0.99%, CuO 0.59%,
F21.98%, ZrO20.99%.Wherein R2O selects Na2O、K2O and Li2O, and three kinds of material mol ratios are 6:1:1.5.
(2) the acidproof enamel enamel group after mixing is placed in kiln, is melted at 1500 DEG C, waits for melt
After uniform wire drawing is without node, water quenching in cold water is poured into immediately and dries enamel frit to the no moisture of surface at enamel frit, with
Dispersant, suspending agent, electrolyte mixed grinding are 100 parts its ratio be enamel frit at the glaze slip of setting fineness and unit weight, point
Powder is water, and additive amount is 50 parts, and suspending agent is clay and bentonitic mixture, total addition level be 7 parts (3 parts of clay,
4 parts of bentonite), electrolyte is sodium nitrite and borax, and total addition level is 1.0 parts (0.5 part of sodium nitrite, 0.5 part of boraxs),
The granularity of glaze slip should cross the screen over-sizes of 325 mesh and be not more than 0.5% after fine grinding.It is stored at room temperature ageing for 24 hours, obtains glaze slip, glaze slip
Unit weight control in 1.55~1.65g/cm3, apply 4 glasss of viscosity and control at 23~28 seconds.
(3) glaze slip in step (2) is coated uniformly on to the surface of weathering steel Q355NH, stands 30min postpositions at room temperature
It is 3 hours dry at 70 DEG C in drying box, then obtained after 890 ± 20 DEG C of kiln kiln roasting 10min, cooling of coming out of the stove
The acid-proof enamel of one-time sintering technology is to get acidproof enamel enamel.
Embodiment 4
A kind of preparation method of acidproof enamel enamel, includes the following steps：
(1) by acidproof enamel enamel each component mixing, the acidproof enamel enamel includes the group of following weight composition
Point：SiO259.52%, R2O 17.85%, CaO 4.12%, Al2O31.83%, B2O33.66%, SrO 0.92%, BaO
2.75%, MgO 0.92%, TiO22.29%, Fe2O30.55%, Co3O41.37%, NiO 0.92%, CuO 0.55%,
F21.83%, ZrO20.92%.Wherein R2O selects Na2O、K2O and Li2O, and three kinds of material mol ratios are 5:1.5:1.2.
(2) the acidproof enamel enamel group after mixing is placed in kiln, is melted at 1550 DEG C, waits for melt
After uniform wire drawing is without node, water quenching in cold water is poured into immediately and dries enamel frit to the no moisture of surface at enamel frit, with
Dispersant, suspending agent, electrolyte mixed grinding are 100 parts its ratio be enamel frit at the glaze slip of setting fineness and unit weight, point
Powder is water, and additive amount is 45 parts, and suspending agent is bentonite, and additive amount is 5 parts, and electrolyte is sodium nitrite and borax
Mixture, total weight are 0.8 part (0.4 part of sodium nitrite, 0.4 part of borax), and the granularity of glaze slip should cross 325 purposes after fine grinding
Screen over-size is not more than 0.5%.It is stored at room temperature ageing for 24 hours, obtains glaze slip, the unit weight of glaze slip is controlled in 1.55~1.65g/cm3, apply
4 glasss of viscosity was controlled at 23~28 seconds.
(3) glaze slip in step (2) is coated uniformly on to the surface of weathering steel Q355NH, stands 30min postpositions at room temperature
It is 2.5 hours dry at 70 DEG C in drying box, then obtained after 890 ± 20 DEG C of kiln kiln roasting 8min, cooling of coming out of the stove
The acid-proof enamel of one-time sintering technology is to get acidproof enamel enamel.
Embodiment 5
A kind of preparation method of acidproof enamel enamel, includes the following steps：
(1) by acidproof enamel enamel each component mixing, the acidproof enamel enamel includes the group of following weight composition
Point：SiO257.57%, R2O 18.72%, CaO 4.32%, Al2O31.92%, B2O33.84%, SrO 0.96%, BaO
2.88%, MgO 0.96%, TiO22.40%, Fe2O30.58%, Co3O41.44%, NiO 0.96%, CuO 0.58%,
F21.92%, CeO20.95%.Wherein R2O selects Na2O、K2O and Li2O, and three kinds of material mol ratios are 6:1.5:1.
(2) the acidproof enamel enamel group after mixing is placed in kiln, is melted at 1550 DEG C, waits for melt
After uniform wire drawing is without node, water quenching in cold water is poured into immediately and dries enamel frit to the no moisture of surface at enamel frit, with
Dispersant, suspending agent, electrolyte mixed grinding are 100 parts its ratio be enamel frit at the glaze slip of setting fineness and unit weight, point
Powder is water, and additive amount is 55 parts, and suspending agent is bentonite, and additive amount is 3~7 parts, and electrolyte is sodium nitrite and boron
The mixture of sand, total addition level are 1.0 parts (0.5 part of sodium nitrite, 0.5 part of boraxs), and the granularity of glaze slip should mistake after fine grinding
The screen over-size of 325 mesh is not more than 0.5%.Be stored at room temperature ageing for 24 hours, obtain glaze slip, the unit weight control of glaze slip 1.55~
1.65g/cm3, apply 4 glasss of viscosity and control at 23~28 seconds.
(3) glaze slip in step (2) is coated uniformly on to the surface of weathering steel Q355NH, stands 30min postpositions at room temperature
It is 1.5 hours dry at 70 DEG C in drying box, then obtained after 890 ± 20 DEG C of kiln kiln roasting 8min, cooling of coming out of the stove
The acid-proof enamel of one-time sintering technology is to get acidproof enamel enamel.
Performance test：
The fault plane of acidproof enamel enamel made from embodiment 1-5 is observed in the secure execution mode (sem, as a result respectively such as Fig. 1
Shown in 2, as can be seen from Figure 1：Pass through the ZrO of addition 0.99% in case 32Though into the enamel layer 1 of specific components
So there is part bubble, but the formation intact with 3 energy of metallic matrix Q355NH weathering steels is whole, interface 2 between the two is excessive
It is very gentle, illustrate that enamel and matrix are well combined.
As can be seen from Figure 2：Pass through the CeO of addition 0.95% in case 52Enamel layer 1 to specific components is basic
Bubble-free, very small bubble have certain help to the toughness of enamel, and can be intact with metallic matrix Q355NH weathering steels 3
Entirety is formed, interface 2 between the two is not seen substantially, illustrates that enamel and matrix are well combined.
The acidproof and spalling resistance of acidproof enamel enamel made from embodiment 1 and 3 can be tested, as a result such as table 1
It is shown, wherein acid resistance is according to GB/T 7938-2013《The measurement of the resistance to boiling sulfuric acid vapor corrosive nature of enamel for glassed steel》Rule
Surely it is surveyed；Spalling resistance can be according to GB/T 19354-2003《The survey of aluminium enamel enamel coating adherence on aluminium under electrolyte effect
Fixed (spalling test)》Regulation tested.
Table 1
As it can be seen from table 1 the enamel coating for preparing of the present invention has a very good acid resistance, and all without falling off
Show appearance, illustrates that the patent of the present invention has very good performance in terms of preparation examines and steps on steel enamel coating, can carry significantly
High product service life in air preheater, the adverse circumstances such as fume exchanger.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for those skilled in the art
For member, the application can have various modifications and variations.Any modification made by within the spirit and principles of this application,
Equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of acidproof enamel enamel, it is characterised in that：By weight percentage, the acidproof enamel enamel includes following
Component：SiO255.0%~67.0%, alkali metal oxide R2O 17.0%~19.5%, CaO 2.0%~5.0%, Al2O3
1.0%~3.0%, B2O33.0%~5.0%, BaO 2.0%-4.0%, MgO 0.5%~2.0%, TiO22.0~
4.0%, Fe2O30.5%~1.5%, Co3O41.0%~2.0%, NiO 0.5%~2.0%, CuO 0.5%~2.0%,
F21.0%~3.0%.
2. acidproof enamel enamel as described in claim 1, it is characterised in that：The alkali metal oxide R2O includes Na2O、
K2O、Li2Any one or a few in O；
Preferably, it is (3-8) that the alkali metal oxide, which is molar ratio,:(0.5-2):The Na of (0.5-2)2O、K2O、Li2O's is mixed
Close object；
Preferably, it is 6 that the alkali metal oxide, which is molar ratio,:(1-1.5):The Na of (1-1.5)2O、K2O、Li2The mixture of O.
3. acidproof enamel enamel as claimed in claim 1 or 2, it is characterised in that：The acidproof enamel enamel further includes
SrO, it is preferred that the content of SrO is the 0.5-2.0% of acidproof enamel enamel total weight.
4. acidproof enamel enamel as claimed in claim 1 or 2, it is characterised in that：The acidproof enamel enamel further includes
ZrO2, it is preferred that the ZrO2Content be acidproof enamel enamel total weight 0.5-2.0%.
5. acidproof enamel enamel as claimed in claim 1 or 2, it is characterised in that：The acidproof enamel enamel further includes
CeO2, it is preferred that the CeO2Content be acidproof enamel enamel total weight 0.5-2.0%.
6. the preparation method of acidproof enamel enamel as described in any one in claim 1-5, it is characterised in that：Including walking as follows
Suddenly：
(1) it will be melted after acidproof enamel enamel each component mixing, after the uniform wire drawing of melt is without node, fall immediately
Enter water quenching in cold water by the drying of enamel frit, to grind, still aging at enamel frit, glaze slip is made；
(2) glaze slip in step (1) is coated in substrate material surface, drying, firing, cooling are to get acidproof enamel enamel.
7. the preparation method of acidproof enamel enamel as claimed in claim 6, it is characterised in that：It is described to be melted in step (1)
Temperature is 1450-1550 DEG C.
8. the preparation method of acidproof enamel enamel as claimed in claims 6 or 7, it is characterised in that：It is described in step (2)
The preparation method of glaze slip is：After enamel frit is dried, by it with dispersant, suspending agent, electrolyte mixed grinding at setting
The glaze slip of fineness and unit weight is 100 parts its ratio be enamel frit, and dispersant is water, and adding proportion is 40~60 parts, is suspended
Agent is clay or bentonite or both mixture, and adding proportion is 3~7 parts, and electrolyte is sodium nitrite and borax, gross weight
Amount is 0.5~1.0 part, and the granularity of glaze slip should cross the screen over-sizes of 325 mesh and be not more than 0.5% after fine grinding；It is stored at room temperature ageing
For 24 hours, glaze slip is obtained, the unit weight of glaze slip is controlled in 1.55~1.65g/cm3, apply 4 glasss of viscosity and control at 23~28 seconds.
9. the preparation method of acidproof enamel enamel as claimed in claim 8, it is characterised in that：In step (2), the firing
Temperature is 890 ± 20 DEG C, time 8-10min；
Or, in step (2), method is warded off using leaching, glaze slip is equably applied to substrate material surface；
Or, in step (2), described matrix material includes：Mild steel, weather-resistant steel plate；
Or, in step (2), the temperature of the drying is：70℃.
10. application of the acidproof enamel enamel as described in any one in claim 1-5 in building decoration, chemical field.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110877959A (en) * | 2019-10-31 | 2020-03-13 | 胜利油田新大管业科技发展有限责任公司 | One-step enameling and low-temperature firing glass-lined glaze for oilfield pipeline corrosion prevention and preparation method and application thereof |
| CN111096655A (en) * | 2019-09-29 | 2020-05-05 | 浙江苏泊尔家电制造有限公司 | Inner pot and cooking utensil |
| CN111548013A (en) * | 2020-05-21 | 2020-08-18 | 佛山市利德嘉陶瓷制釉有限公司 | Nine-grade glaze with high Mohs hardness and use method of glaze |
| CN113929303A (en) * | 2021-09-23 | 2022-01-14 | 东莞理工学院 | Paint for martensitic stainless steel surface, enamel composite coating and preparation method thereof |
| CN115572067A (en) * | 2022-09-16 | 2023-01-06 | 江西新明珠建材有限公司 | Dry grain glaze, matte ceramic tile and preparation method thereof |
| CN115636586A (en) * | 2022-11-17 | 2023-01-24 | 淄博太极工业搪瓷有限公司 | Enamel glaze for reaction kettle and preparation method thereof |
| CN115745403A (en) * | 2022-11-25 | 2023-03-07 | 淄博中升机械有限公司 | Nano microcrystalline enamel glaze and preparation method thereof |
| CN115818962A (en) * | 2022-12-16 | 2023-03-21 | 江阴硅普搪瓷股份有限公司 | Acid-resistant enamel pre-ground powder based on nano material and preparation method thereof |
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| CN111096655A (en) * | 2019-09-29 | 2020-05-05 | 浙江苏泊尔家电制造有限公司 | Inner pot and cooking utensil |
| CN110877959A (en) * | 2019-10-31 | 2020-03-13 | 胜利油田新大管业科技发展有限责任公司 | One-step enameling and low-temperature firing glass-lined glaze for oilfield pipeline corrosion prevention and preparation method and application thereof |
| CN111548013A (en) * | 2020-05-21 | 2020-08-18 | 佛山市利德嘉陶瓷制釉有限公司 | Nine-grade glaze with high Mohs hardness and use method of glaze |
| CN113929303A (en) * | 2021-09-23 | 2022-01-14 | 东莞理工学院 | Paint for martensitic stainless steel surface, enamel composite coating and preparation method thereof |
| CN115572067A (en) * | 2022-09-16 | 2023-01-06 | 江西新明珠建材有限公司 | Dry grain glaze, matte ceramic tile and preparation method thereof |
| CN115636586A (en) * | 2022-11-17 | 2023-01-24 | 淄博太极工业搪瓷有限公司 | Enamel glaze for reaction kettle and preparation method thereof |
| CN115745403A (en) * | 2022-11-25 | 2023-03-07 | 淄博中升机械有限公司 | Nano microcrystalline enamel glaze and preparation method thereof |
| CN115818962A (en) * | 2022-12-16 | 2023-03-21 | 江阴硅普搪瓷股份有限公司 | Acid-resistant enamel pre-ground powder based on nano material and preparation method thereof |
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