CN112062469B - Bottom glaze material of stainless steel enamel plate and preparation method and application thereof - Google Patents
Bottom glaze material of stainless steel enamel plate and preparation method and application thereof Download PDFInfo
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- CN112062469B CN112062469B CN202010889270.8A CN202010889270A CN112062469B CN 112062469 B CN112062469 B CN 112062469B CN 202010889270 A CN202010889270 A CN 202010889270A CN 112062469 B CN112062469 B CN 112062469B
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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
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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
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
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Abstract
The invention discloses a ground glaze material of a stainless steel enamel plate, which comprises the following components in percentage by mass: SiO 2230‑38％；B2O315‑19％；Al2O36‑10％；TiO21‑2％；BaO 1‑4％；Na2O 14‑19％；K2O 5‑10％；MgO 0.1‑0.6％；P2O52‑4％；ZnO 0.2‑0.8％；Cr2O30.1 to 0.3 percent; 0.4 to 0.8 percent of CuO; 0.3 to 0.9 percent of CoO; NiO 0.7-1.2% and MnO20.8 to 1.3 percent. The stainless steel enamel plate prepared by using the glaze provided by the invention at a lower firing temperature has good adherence, and the obtained enamel surface is smooth and fine.
Description
Technical Field
The invention relates to the field of enamel material preparation, in particular to a ground coat glaze material of a stainless steel enamel plate and a preparation method and application thereof.
Background
Enamel plate is a composite material in which an inorganic vitreous material is fused to a base steel plate and firmly bonded to the steel plate. The enamel coating on the surface of the steel plate can prevent the steel plate from rusting, so that the steel plate is not easy to form an oxide layer on the surface when being heated and can resist the corrosion of various liquids. The enamel product has the excellent performances of high hardness, high temperature resistance, wear resistance, insulation, safety, no toxicity, easy washing, cleanness and the like, and the enamel layer can endow the product with beautiful appearance, so the enamel product is widely used in the fields of decorative wallboards for subway stations, decorative wallboards for building inner and outer walls, decorative wallboards for tunnels, wall surfaces of sterile operating rooms, wallboards for pedestrian underpasses, heat exchangers and the like.
At present, the low-carbon steel plate is generally selected for the enamel plate, but once the low-carbon steel enamel plate has corner porcelain explosion, the bottom plate exposed in the external environment is rusted, and when the enamel plate is used as an external curtain wall, the plate deformation problem can be caused due to the high perforation rate pursued by the decoration of the external curtain wall. These problems have been the main cause of limitation of the use of low-carbon steel enamel panels in the decoration of external curtain walls. Compared with the common low-carbon steel plate, the stainless steel has the performances of corrosion resistance, high strength, difficult breakage of steel deformation and environmental protection, has good ductility and toughness, and is suitable for being used in severe environments (indoor and outdoor environments such as wet environment, acid-base environment and the like). Therefore, the stainless steel substrate is used for replacing low-carbon steel, so that the problems existing in the existing outer curtain wall decoration can be smoothly solved, but the stainless steel enamel plate has the problems that the ground glaze is not firmly combined with the stainless steel, and an enamel layer is easy to fall off.
Therefore, it is an urgent technical problem in the art to provide a stainless steel enamel plate with a base glaze firmly combined with stainless steel and excellent chemical properties.
Disclosure of Invention
In view of the problems, the invention realizes the purposes of good enamel adherence and high enamel surface quality by improving the formula of the enamel layer ground coat glaze and the preparation process.
In order to achieve the purpose, the invention adopts the following technical scheme:
the ground glaze material of the stainless steel enamel plate comprises the following components in percentage by mass: the composite material comprises the following components in percentage by mass: SiO 22 30-38％；B2O3 15-19％；Al2O3 6-10％；TiO2 1-2％；BaO 1-4％；Na2O 14-19％；K2O 5-10％；MgO 0.1-0.6％；P2O5 2-4％；ZnO 0.2-0.8％；Cr2O30.1 to 0.3 percent; 0.4 to 0.8 percent of CuO; 0.3 to 0.9 percent of CoO; NiO 0.7-1.2% and MnO20.8-1.3％。
The stainless steel enamel glaze is divided into two types: the technical difficulty of the stainless steel enamel plate is how to realize high adhesion of the ground glaze and the stainless steel.
SiO in the glaze provided by the invention2Is the main component, isGlass network formers of (1), SiO in glaze2The higher the amount of (A), the higher the firing temperature. In SiO2The content of (A) is within the range of 30-38%, so that the mechanical strength and hardness of the glaze can be improved, and the glossiness, chemical stability and thermal stability of the glaze can also be improved.
In the glaze provided by the invention, B2O3Not only the enamel solvent but also the network former of the enamel promotes the formation of the glassy phase at low temperature. B is2O3The increased content increases the mechanical strength of the enamel and improves the abrasion resistance. B is2O3Has good fluxing action, can reduce the softening temperature, viscosity, surface tension and expansion coefficient of the porcelain glaze, is beneficial to melting metal oxides and is beneficial to the formation of adherence.
Al in glaze provided by the invention2O3Is an intermediate oxide which can be combined with not only silica but also basic oxides. The vitrification capability of the porcelain glaze can be improved, the devitrification can be inhibited, the elasticity, the hardness and the chemical stability of the glaze can be obviously improved, and the chemical corrosion resistance can be improved.
TiO in the glaze provided by the invention2It can increase the opacifying action, acid resistance and luster of the porcelain glaze. Because the opalescence is good, the porcelain glaze only needs to be coated with a thin layer, so that the porcelain layer has high thermal stability, impact resistance, breaking strength and good chemical stability; simultaneous TiO 22The luster of the porcelain glaze is improved, so that the surface of the porcelain enamel product is smoother and finer.
BaO in the glaze provided by the invention is a fluxing agent, barium has the largest ionic radius in alkali metal, and the strongest alkalinity is the best fluxing effect in alkali metal oxidation, and the organic acid corrosion resistance of the glaze surface can be improved.
K in glaze provided by the invention2O and Na2O is a strong fluxing agent of the glaze, can obviously reduce the melting temperature and high-temperature viscosity of the glaze, and increases the refractive index of the glaze, thereby improving the glossiness of the glaze. K2O and Na2The melting point of O is low, and the O is easy to be mixed with SiO in the process of melting the porcelain glaze2The chemical reaction can release a large amount of heat, thereby reducing the heating temperature of the outside and reducing the viscosity at high temperature.
The MgO is also a fluxing agent of the glaze, so that the viscosity of a melt can be reduced, the expansion coefficient of the glaze can be reduced, the cracking of the glaze surface is reduced, and the quality of the porcelain surface is improved.
P in glaze provided by the invention2O5Can increase the opacifying function of the porcelain glaze, increase the reflection coefficient of the porcelain layer, and improve the chemical stability of the glaze together with titanium dioxide.
The ZnO in the glaze provided by the invention can play a good fluxing role in a large range, reduce the expansion coefficient of the glaze and improve the glossiness. However, the mass fraction of zinc oxide is selected to be 0.2-0.8% because excessive use will cause devitrification of the glaze and result in loss of permeability of the glaze.
The Cr in the glaze provided by the invention2O3Can improve the chemical stability and the high temperature resistance of the porcelain glaze and is beneficial to the formation of the stainless steel porcelain glaze in the invention.
The glaze provided by the invention contains CuO, CoO, NiO and MnO2The four kinds of adhesive have interaction relation, and the interaction of the four kinds of adhesive can react with iron, so that the enamel can penetrate into the surface layer of the steel plate, the enamel is promoted to soak the surface of the stainless steel at high temperature, the dissolution of the iron and ferric oxide is promoted, the oxidation condition of an interface is controlled, the formation of a uniform bubble structure on the enamel layer is facilitated, and the primer glaze and the stainless steel are well adhered.
Preferably, the base glaze material of the stainless steel enamel plate comprises the following components in percentage by mass: SiO 2236.39％；B2O3 17.87％；Al2O3 7.06％；TiO2 1.15％；BaO 2.79％；Na2O 17.59％；K2O 9.96％；MgO 0.18％；P2O5 2.95％；ZnO 0.57％；Cr2O30.15 percent; 0.57% of CuO; 0.57% of CoO; NiO 1.05% and MnO21.15％。
The invention also discloses a preparation method of the ground glaze material of the stainless steel enamel plate, which comprises the following steps: (1) mixing the components in proportion;
(2) putting the mixture into a high-temperature furnace for melting;
(3) after being melted flat, the mixture is put into water for quenching to form porcelain glaze frits;
(4) and turning the enamel frit into a ball mill to be ground to form glaze.
Preferably, the melting temperature in the step (2) is 1000-1200 ℃, and the enamel frit is sieved by a sieve with 70-90 meshes after being ground.
A stainless steel enamel plate comprises a stainless steel substrate, a ground coat and a cover coat; the ground glaze and the overglaze are sequentially attached to the stainless steel substrate; and the raw material of the ground glaze is the ground glaze material of any one of claims 1-2.
The overglaze formula in the invention has no particularity, and the enameling can be realized by the common overglaze formula. For example: the overglaze comprises the following components in parts by weight: SiO 22：30％～50％，B2O3：15％～25％，Al2O3：5％～10％，CaO：3％～5％，TiO2：15％～18％，BaO：7％～10％，Na2O：10％～16％，K2O：3％～5％，MgO：0.5％～0.8％，P2O5：2％～4％，ZnO：2％～5％。
Preferably, the thickness of the ground coat is controlled to be 90-140um when the S2 glaze is sprayed; the thickness of the overglaze is controlled between 80 and 120 um.
The thickness of the porcelain layer has great influence on the porcelain surface and the adherence, the thickness of the ground glaze is between 90 and 140 mu m, a better porcelain surface and a better adherence grade can be obtained, and the problem that the ground glaze cannot be covered and color difference is generated easily when the thickness of the ground glaze is less than 80 mu m; the thickness of the overglaze exceeds 120um, the surface uniformity is not enough, and the problem of chromatic aberration is also easy to occur.
Preferably, the firing temperature of the ground glaze is 800-840 ℃, and the firing time is 4 min; the firing temperature of the overglaze is 800-840 ℃, and the firing time is 4-5 min.
Preferably, the stainless steel substrate is austenitic stainless steel, and the contents of part of chemical elements in the stainless steel substrate are as follows: carbon is less than 0.030%, silicon is less than 1.00%, manganese is less than 2.00%, phosphorus is less than 0.035%, sulfur is less than 0.030%, nickel is 8.00-20.00%, and chromium is 18.00-20.00%.
Because the types of stainless steel are more, there are ferritic stainless steel, austenitic-ferritic duplex stainless steel and martensitic stainless steel. While the stainless steel that we commonly use is austenitic stainless steel, the present invention focuses on enameling on austenitic stainless steel. The ground glaze material provided by the invention has the best enameling effect on austenitic stainless steel under the chemical element content.
The invention also discloses a preparation method of the stainless steel enamel plate, which comprises the following steps:
s1 stainless steel substrate preparation: the stainless steel plate is subjected to laser nitrogen cutting, corner bending, laser welding, polishing and surface treatment to obtain a stainless steel substrate;
and S2 glaze spraying: adopting a wet spraying process to spray glaze;
s3, drying: the drying temperature is 150-;
s4 firing: the firing temperature of the base glaze is 800-; the firing temperature of the overglaze is 800-840 ℃, and the firing time is 4-5 min.
The invention adopts laser cutting to finish the cutting of the stainless steel plate, can ensure the precision of the cutting size and is convenient for the installation of the plate; and the cutting surface is protected from being oxidized by selecting nitrogen for cutting, the probability of porcelain explosion of the knife edge is reduced, the laser automatic cutting is realized, the manual operation is reduced, the maximization of the capacity is realized, the used stainless steel laser cutting process is consistent with the prior art, and the invention is not described in detail. The corner bending is formed according to the existing production process. Because the stainless steel material is special, the manual welding deformation is large, the laser welding is changed into the laser welding through a process test, and because the oxidation of the welding line of the laser welding is less, the welding line is slightly polished. The invention realizes the purposes of good enamel adherence and high porcelain surface quality at the firing temperature of 800 ℃.
Preferably, the thickness of the stainless steel plate during laser welding in S1 is 1.5mm, the welding power is 800W, the welding speed is 0.8m/min, and the focal length is opposite to the focal point.
The welding parameters for normally producing the steel plate are 2400W, the welding speed is 1m/min, the focal distance is opposite to the focal point, but the deformation of the stainless steel is serious when the austenitic stainless steel is welded. The stainless steel plate has the best welding effect under the parameters.
Preferably, the surface treatment in S1 specifically includes:
the first way is that: degreasing, sodium carbonate concentration: 8-10%, temperature: 60-70 ℃, time: 7-8 min;
and a second step: degreasing, sodium carbonate concentration: 8-10%, temperature: 60-70 ℃, time: 7-8 min;
and a third step: hot water washing, temperature: 50-60 ℃, time: 3-4 min;
and a fourth step: cold water flushing, normal temperature, time: 2-3 min;
and a fifth step: drying, temperature: 300-350 ℃, time: 8-10 min.
The method for increasing the stainless steel adherence in the industry at present is surface sand blasting treatment, a certain roughness is formed on the surface of a stainless steel plate, but the difficulty of large plate sand blasting on fields, equipment and uniformity is higher. The invention adopts a chemical soaking mode to treat the surface of the stainless steel, and has small treatment difficulty and good effect.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the integral proportion of the components, the smooth and fine porcelain surface is obtained by utilizing the good opaqueness of titanium dioxide and phosphorus pentoxide, and CuO, CoO, NiO and MnO are matched2The adhesion promotion function of the enamel glaze is matched with other components, so that the stainless steel enamel plate ground glaze provided by the invention has the characteristics of high adhesion, high weather resistance and high corrosion resistance;
2. the stainless steel enamel plate prepared by using the glaze provided by the invention at a lower firing temperature has good adherence, and the obtained enamel surface is smooth and fine;
3. by improving the preparation method, the adherence of the stainless steel enamel plate is further improved, and the problems that the enamel layer falls off after the low-carbon steel enamel plate collides, the internal steel plate is not protected by the enamel layer and is rusted are solved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples 1 to 3
The specific component content of the base glaze material of the stainless steel enamel plate is shown in the table 1.
Table 1: EXAMPLES 1-3 tabulation of mass fraction (%)
| Components | Example 1 | Example 2 | Example 3 |
| SiO2 | 36.39 | 36.39 | 38 |
| B2O3 | 17.87 | 17.87 | 19 |
| Al2O3 | 7.06 | 7.06 | 7.06 |
| TiO2 | 1.15 | 1.15 | 1.15 |
| BaO | 2.79 | 2.79 | 2.79 |
| Na2O | 17.59 | 17.59 | 14.85 |
| K2O | 9.96 | 9.96 | 9.96 |
| MgO | 0.18 | 0.18 | 0.18 |
| P2O5 | 2.95 | 2.95 | 2.95 |
| ZnO | 0.57 | 0.57 | 0.57 |
| Cr2O3 | 0.15 | 0.15 | 0.15 |
| CuO | 0.57 | 0.66 | 0.57 |
| CoO | 0.57 | 0.57 | 0.57 |
| NiO | 1.05 | 1.05 | 1.05 |
| MnO2 | 1.15 | 1.06 | 1.15 |
Examples 4 to 6
A preparation method of a base glaze material of a stainless steel enamel plate comprises the following steps:
(1) mixing the components in proportion;
(2) putting the mixture into a high-temperature furnace, and melting at the temperature of 1000-1200 ℃;
(3) after being melted flat, the mixture is put into water for quenching to form porcelain glaze frits;
(4) and turning the enamel frit into a ball mill, grinding and sieving by a sieve with 70-90 meshes to form the glaze.
Examples 4-6 were prepared using the glaze formulations of examples 1-3, respectively.
Examples 7 to 9
A preparation method of a stainless steel enamel plate comprises the following steps:
preparation of S1 stainless steel substrate: the 304 stainless steel plate is subjected to laser nitrogen cutting, corner bending, laser welding, polishing and surface treatment to obtain a stainless steel substrate;
the thickness of the stainless steel plate is 1.5mm during laser welding, the welding power is 800W, the welding speed is 0.8m/min, and the focal distance is opposite to the focal point;
the surface treatment specifically comprises the following steps:
the first way is that: degreasing, concentration: 8%, temperature: 70 ℃, time: 8 min;
and a second step: degreasing, concentration: 8%, temperature: 70 ℃, time: 8 min;
and a third step: hot water rinse, temperature: 50-60 ℃, time: 3 min;
and a fourth step: cold water flushing, normal temperature, time: 2 min;
and a fifth step: drying, and the temperature is as follows: 300 ℃, time: 8 min;
s2 glaze spraying: using the ground glaze of example 4 to perform glaze spraying by a wet spraying process; the thickness of the ground coat is controlled to be 90-140 um; the thickness of the overglaze is controlled between 80 and 120 um;
s3, drying: drying at 160 deg.C for 12 min;
s4 sintering: firing the base glaze for 4 min; the firing temperature of the overglaze is 820 ℃, and the firing time is 4 min.
Examples 7 to 9 all used the above-described preparation method except that the firing temperatures of the ground coat were 800 deg.C, 820 deg.C and 840 deg.C, respectively.
Examples 10 to 12
The ground glaze in examples 7 to 9 was changed to the one prepared in example 5 and fired, and the rest was the same as in examples 7 to 9.
Comparative examples 13 to 15
The ground glaze in examples 4 to 6 was changed to the firing of the ground glaze prepared in example 6, and the rest was the same as in examples 7 to 9.
The stainless steel enamel plates manufactured in examples 7 to 15 were respectively tested for adherence using an adherence instrument. The results of the adhesion test and the quality of the porcelain facing are recorded in table 2.
Table 2: results of various tests on stainless steel enamel plates produced in examples 4 to 12
| Item | Sintering process | Adhesion rating | Quality of porcelain facing |
| Example 7 | 800℃；4.0min | Level 1 | Smooth and fine |
| Example 8 | 820℃；4.0min | Level 1 | Smooth and fine |
| Example 9 | 840℃；4.0min | Level 1 | Smooth and fine |
| Example 10 | 800℃；4.0min | Grade 3 | Smooth and fine |
| Example 11 | 820℃；4.0min | Grade 3 | Smooth and fine |
| Example 12 | 840℃；4.0min | Level 1 | Porcelain surface with boiling and pinhole |
| Example 13 | 800℃；4.0min | Grade 3 | Smooth and fine |
| Example 14 | 820℃；4.0min | Level 1 | Smooth and fine |
| Example 15 | 840℃；4.0min | Level 1 | Porcelain surface with boiling and pinhole |
It can be seen from table 1 and table 2 that, after the stainless steel enamel glaze obtained according to the components and mass fractions of examples 1 to 3 is sintered at different temperatures, the surface of the porcelain sintered by the glaze formula of example 1 is smooth and fine, and the temperature required for forming the 1-grade adhesion is the lowest. Therefore, the formulation of the base glaze of example 1 is the best formulation, and the obtained stainless steel enamel glaze has good porcelain surface quality while ensuring good adherence.
Examples 16 to 17
The primer spraying thickness was modified to 90-120um, 120-140um, respectively, as in example 7.
Comparative examples 1 to 4
The thickness of the primer is respectively modified to 30-50um, 50-70um, 70-90um, 140-160um, and the rest is the same as example 7.
The stainless steel enamel plates manufactured in examples 16 to 17 and comparative examples 1 to 4 were respectively tested for adhesion using an adhesion tester. The results of the adhesion test and the quality of the porcelain facing are recorded in table 3.
Table 3: test results of stainless steel enamel plates manufactured in examples 4 and 13 and comparative examples 1 to 4
As can be seen from Table 3, the thickness of the ground coat layer has a great influence on the porcelain surface and the adherence, and the thickness of the porcelain layer is between 90 and 140um, so that better porcelain surface and better adherence can be obtained.
Investigation of different welding processes
The 304 stainless steel plate was welded by laser welding, and the welding power and welding speed were varied, and the welding effects are shown in table 4.
Table 4: stainless steel welding process test record table: and a laser welding process is adopted.
As can be seen from Table 4, the stainless steel plates have the best welding effect under the welding parameters defined by the present invention.
The technical solutions provided by the present invention are described in detail above, and the principle and the implementation of the present invention are explained in this document by applying specific examples, and the descriptions of the above examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. The base glaze material of the stainless steel enamel plate is characterized by comprising the following components in percentage by mass:
SiO2 36.39%；B2O3 17.87%；Al2O3 7.06%；TiO2 1.15%；BaO 2.79%；Na2O 17.59%；K2O 9.96%；MgO 0.18%；P2O5 2.95%；ZnO 0.57%；Cr2O30.15 percent; 0.57% of CuO; 0.57% of CoO; NiO 1.05% and MnO2 1.15%。
2. The method for preparing the ground glaze material of stainless steel enamel plate according to claim 1, characterized by comprising the following steps:
(1) mixing the components in proportion;
(2) putting the mixture into a high-temperature furnace for melting;
(3) after being melted flat, the mixture is put into water for quenching to form porcelain glaze frits;
(4) and turning the porcelain glaze frits into a ball mill to be ground to form the glaze.
3. A stainless steel enamel plate, characterized by comprising: the stainless steel substrate, the ground glaze and the overglaze;
wherein the ground glaze and the overglaze are sequentially attached to the stainless steel substrate; and the base glaze is prepared from the base glaze material as set forth in claim 1.
4. The stainless steel enamel plate according to claim 3, wherein said under-glaze has a thickness of 90-140 um; the thickness of the overglaze is 80-120 um.
5. The stainless steel enamel plate as claimed in claim 3, wherein the firing temperature of the ground glaze is 800-840 ℃ and the firing time is 4 min; the firing temperature of the overglaze is 800-840 ℃, and the firing time is 4-5 min.
6. The enamel plate of stainless steel as claimed in claim 3, wherein the stainless steel substrate is austenitic stainless steel, and the contents of partial chemical elements are as follows: carbon is less than 0.030%, silicon is less than 1.00%, manganese is less than 2.00%, phosphorus is less than 0.035%, sulfur is less than 0.030%, nickel is 8.00-20.00%, and chromium is 18.00-20.00%.
7. A method for the production of enamelled stainless steel plates according to any of claims 3 to 6, characterized in that it comprises the following steps:
preparation of S1 stainless steel substrate: the stainless steel plate is subjected to laser nitrogen cutting, corner bending, laser welding, polishing and surface treatment to obtain a stainless steel substrate;
and S2 glaze spraying: adopting a wet spraying process to spray glaze;
s3, drying: the drying temperature is 150-;
s4 firing: the firing temperature of the base glaze is 800-; the firing temperature of the overglaze is 800-840 ℃, and the firing time is 4-5 min.
8. The method of claim 7, wherein the thickness of the stainless steel plate at the time of the laser welding in S1 is 1.5mm, the welding power is 800W, the welding speed is 0.8m/min, and the focal distance is opposite to the focal point.
9. The method for preparing the enamel plate of stainless steel as claimed in claim 7, wherein the surface treatment in S1 is specifically:
the first way is that: degreasing, sodium carbonate concentration: 8-10%, temperature: 60-70 ℃, time: 7-8 min;
and a second step: degreasing, sodium carbonate concentration: 8-10%, temperature: 60-70 ℃, time: 7-8 min;
and a third step: hot water washing, temperature: 50-60 ℃, time: 3-4 min;
and a fourth step: cold water flushing, normal temperature, time: 2-3 min;
and a fifth step: drying, temperature: 300-350 ℃, time: 8-10 min.
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| CN202010889270.8A CN112062469B (en) | 2020-08-28 | 2020-08-28 | Bottom glaze material of stainless steel enamel plate and preparation method and application thereof |
| PCT/CN2021/087687 WO2022041785A1 (en) | 2020-08-28 | 2021-04-16 | Ground coat glaze of stainless steel enamel plate, and preparation method therefor and application thereof |
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| CN202010889270.8A CN112062469B (en) | 2020-08-28 | 2020-08-28 | Bottom glaze material of stainless steel enamel plate and preparation method and application thereof |
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| CN112062469B (en) * | 2020-08-28 | 2022-06-03 | 浙江开尔新材料股份有限公司 | Bottom glaze material of stainless steel enamel plate and preparation method and application thereof |
| CN113789514B (en) * | 2021-08-23 | 2023-07-28 | 江阴硅普搪瓷股份有限公司 | Preparation method of high-temperature-resistant, wear-resistant and strong-impact-resistant anti-corrosion microcrystalline glaze |
| CN114368245A (en) * | 2021-12-23 | 2022-04-19 | 张柳松 | Method for making stainless steel porcelain picture |
| CN114873915B (en) * | 2022-04-26 | 2023-09-01 | 九牧厨卫股份有限公司 | Ceramic glaze for stainless steel bathroom products and application thereof |
| CN115386875B (en) * | 2022-08-26 | 2024-04-23 | 湖南星城壹品装饰工程有限公司 | Porcelain coating process for inner and outer surfaces of water purification filter element sleeve |
| CN115817061A (en) * | 2022-12-02 | 2023-03-21 | 浙江开尔新材料股份有限公司 | Production method of enamel plate with hollowed-out artistic pattern on plate surface |
| 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 |
| KR102546576B1 (en) * | 2023-03-07 | 2023-06-23 | 주식회사 디디글로벌 | Manufacturing Method of SUS Plate for manufacturing Copper Foil |
| CN116282924B (en) * | 2023-03-28 | 2024-08-09 | 邯郸市槐山新材料科技有限公司 | Low-temperature porcelain glaze composition and preparation method and application thereof |
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| CN112062469A (en) | 2020-12-11 |
| WO2022041785A1 (en) | 2022-03-03 |
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