CN101717277A - Metal magnetic conduction ceramic pot - Google Patents
Metal magnetic conduction ceramic pot Download PDFInfo
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- CN101717277A CN101717277A CN200910200917A CN200910200917A CN101717277A CN 101717277 A CN101717277 A CN 101717277A CN 200910200917 A CN200910200917 A CN 200910200917A CN 200910200917 A CN200910200917 A CN 200910200917A CN 101717277 A CN101717277 A CN 101717277A
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Abstract
The invention relates to the field of ceramic ware manufacturing, in particular to a ceramic pot of which the outer surface of a pot bottom and the outer side of a pot body are coated with silver-based metal layers. The ceramic pot comprises the pot bottom, the pot body, a pot cover and an annular magnetic conduction layer; the outer surface of the pot bottom and the outer side of the pot body of the magnetic conduction ceramic pot are provided with one or more annular silver-based metal magnetic conduction coatings; the magnetic conduction coating (4) of the magnetic conduction ceramic pot comprises the following components in percentage by weight: 85 to 98 percent of argentums (Ag), 0 to 15 percent of graphite (C) and 0 to 2.5 percent of nickel (Ni); and the thickness of the magnetic conduction coating is between 0.5 to 0.8 millimeters. Under the same external condition, compared with a traditional product, the ceramic pot can integrally receives electromagnetic radiation energy of an induction cooker, has the advantages of high heating speed, large and even heating area, energy conservation and environmental protection, is not only suitable for pots and boilers, but also suitable for the tea sets needing the induction cooker for heating and the medicinal ceramic ware or glassware.
Description
Technical field
The present invention relates to pottery and make field, particularly a kind of metal magnetic conduction ceramic pot.
Technical background
Ceramic industry is with a long history, China more names in the world with pottery. and pottery is applied to people's various fields in life widely, wherein largest portion is the diet field in people's daily life, along with the raising of people's standard of living and the appearance of emerging technology, ancient ceramics product far can not adapt to the demand of society.
Development along with catering trade, electromagnetic oven has been widely used in food-processing means such as chafing dish and iron plate barbecue, though traditional ceramic pot products is celebrated with excellent thermal insulation performance, and for clean, safe electromagnetic oven heating product, but because the nonmetal characteristic of pottery, can not inductive electromagnetic stove electromagnetic radiation energy, can not apply to traditional stew, processing means such as stewing.
At present, emerging usefulness has the Ceramic Composite technology of the metal ingredient and the non-magnetic conduction of magnetic conduction function, make traditional ceramic technology be developed and extend, yet existing complete processing mostly adopts the pre-buried method of metallic conductor, metal meltblown etc., but all differ bigger because of the coefficient of expansion with potter's clay, be difficult to and the ceramic surface appropriateness, annular metal magnetic conducting layer and ceramic surface isolating " flaking " phenomenon easily takes place, condemnation factor is very high in the production process.In addition, another kind of film sticking type ferrous metals magnetic guiding loop technology in the actual use of user, takes place to puncture or burn-off phenomenon through regular meeting, makes and causes by product failure to the user discontented.
The potter's clay areal distribution of China is extensive, and component content is complicated and widely different, and potter's clay is meant and contains irony and be with tones such as tawny, canescence, red-violet colour to have good plastic clay.Mineralogical composition is based on montmorillonite, kaolin.Mineral deposit (point) sampling analysis: contain silicon-dioxide 65.18-71.86%, aluminium sesquioxide 15.02-17.99%, ferric oxide 3.27-6.61%, calcium oxide 0.75-1.68%, magnesium oxide 0.89-2.07%, contain micro-oxide compound such as tungsten, boron, germanium, nickel. because metal ingredient is free shape in potter's clay,, is difficult to direct with fine and close metal level and combines with the appearance of silicate crystal form.
In addition, the high temperature of firing of potter's clay also makes by composition metal generation oxidation, as iron and aluminium, in case insert in the electromagnetic field Fe
2O
3And Al
2O
3Bad electroconductibility makes impedance increase, just can strike sparks, punch-through, if adopt nitrogen protection method to fire, then is difficult to bear for product for civilian use price.
Faraday's electromagnetic indution law
E=n ΔΦ/Δ t, [E: inductive emf (V), n: number of inductive coil turns, ΔΦ/Δ t: the velocity of variation of magnetic flux]
The law of resistance
R=ρ L/S, [ρ: be resistivity (Ω m), S: cross-sectional area (m
2), R: resistance value (Ω), L: the length of lead (m)]
The electric thermal power equivalent calculates law:
W=E
2T/R[W: hot merit (J-joule), E: inductive emf (V-volt), t: time (s-second), R: resistance value (Ω-ohm)]
Summary of the invention
Be used for the processing of electromagnetic oven existence and use the drawback that exists, characteristic, electromagnetic coupling theory and the hot merit transfer principle of potter's clay at above-mentioned pottery pot, the object of the invention is to provide a kind of efficient, energy-conservation metal magnetic conduction ceramic pot.
The present invention proposes following technical solution:
A kind of metal magnetic conduction ceramic pot, comprise the bottom of a pan, pot body, pot cover and annular magnetic layer, there is one or more endless metal magnetic conduction coating the outer surface of pot bottom of described magnetic conduction ceramic pot and the external side of pot, the magnetic conduction coating of this magnetic conduction ceramic pot content by weight percentage is: silver (Ag) 85～98%, graphite (C) 0～15%, nickel (Ni) 0～2.5%; The magnetic conduction coat-thickness is 0.5～0.8 millimeter.
Different with traditional diamond-making technique, the present invention is embodied in following characteristic:
1. different with existing iron (Fe) sill, the present invention selects for use silver (Ag) sill that is difficult for oxidation as the heating power of the pottery pot body that rises, the one, the oxidative phenomena in the production process causes the decline of magnetic property, the 2nd, argent has good low resistance electroconductibility, the 3rd, the argent molecular weight is big, deformation is little, and the coefficient of expansion and pottery are more approaching, can have than strong adhesive force with ceramic surface.
2. add reductive agent carbon (C), in order to reduce the generation of pottery pot oxidative phenomena in sintering procedure to greatest extent, the present invention has all added carbon (C) in the sintering procedure of the base substrate of potter's clay, enamel, magnetic conduction coating, through after the following series reaction, the metallic molecule of separating out in the pottery and silver (Ag) sill heating power body that rises produces very strong molecule anchor and puts forth effort. rather than conventional metals the melt-blown process pottery and the intermetallic sticking power that produce, neither enamel wrap up the curing power after firing.
The decomposition reaction of crystal salt: as
CuSO
4·5H
2O→CuO+5H
2O↑+SO
2↑
KAI(SO
4)2·12H
2O→K
2O+Al
2O
3+5H
2O↑+SO
2↑
……
Oxidizing reaction: as C+O
2→ CO
Fe+O
2→Fe
2O
3
Al+O
2→Al
2O
3
Cu+O
2→CuO
……
Reduction reaction: as CO+Fe
2O
3→ Fe+CO
2↑
CO+Al
2O
3→Al+CO
2↑
CO+CuO→Cu+CO
2↑
……
Replacement(metathesis)reaction: as Fe+AgO → Ag+Fe
2O
3
Cu+AgO→Ag+CuO
Al+AgO→Ag+Al
2O
3
……
3. change heat source body conduction system
The electric heating merit that draws according to above-mentioned three laws is:
Find out that by two formulas reducing electricalresistivity's electric heating merit W increases; Increase electromagnetic induction number of turn n electric heating merit W and be index square level increase; Behind the area of same increase induction loop, the also corresponding increase of electric heating merit W.
The present invention adopts silver-based material to reduce the electricalresistivity simultaneously; Outer side at pottery pot pot body, increased the number of turns of endless metal magnetic conduction coating 4, the thickness of considering endless metal magnetic conduction coating 4 can not be blocked up, in order to avoid " flaking " peels off, after increasing cross-sectional area S to greatest extent,, be equipped with the number of turns, width and the spacing distance of an amount of endless metal magnetic conduction coating 4 according to the amount of capacity of pottery pot, both enlarge cross-sectional area S, thereby also increased electromagnetic induction amount E.
So under the same external condition, can integral body accept the electromagnetic oven electromagnetic radiation energy compared with traditional product the present invention, heating is rapid, heating surface area is big and even, energy-conserving and environment-protective.
The present invention is not only applicable to the cooking pan class, is applicable to the tea set class that need use electromagnetic oven heating, pottery or glasswares such as medical class yet.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is cross-section structure contrast synoptic diagram;
Fig. 2 (a) is the traditional product cross-sectional view;
Fig. 2 (b) is a cross-sectional view of the present invention;
Fig. 3 is process period of the present invention and thetagram;
Fig. 3 (a) is idiosome of the present invention, glazing color layer process period and thetagram;
Fig. 3 (b) is glazing color layer of the present invention, metal magnetic conducting coating process period and thetagram;
Fig. 4 is an endless metal magnetic conduction coating bottom outer surface static type spraying method synoptic diagram of the present invention;
Fig. 5 is endless metal magnetic conduction coating of the present invention bottom, the rotary spraying method synoptic diagram of outer surface.
The 1-pottery the bottom of a pan among its figure; 2-pottery pot body; 3-pottery pot cover; 4-endless metal magnetic conduction coating; The 5-ceramic layer; The 6-glazing color layer; The 7-metal level; 8-metallic molecule anchor layer; The 9-workpiece; The 10-shower nozzle; The 11-frame; The 12-trunnion; The 13-tensimeter; The 14-pressure storage.
Embodiment
Structure is specifically set forth embodiment as most preferred embodiment of the present invention as shown:
Consider pottery, muffle painting, the anchor effect of the metallic molecule that endless metal magnetic conduction coating is 4, the present invention is in the making of potter's clay idiosome, at first sun-dried mud brick is carried out sampling analysis, add a certain proportion of copper (Cu) according to its metal ingredient content, iron (Fe), aluminium (Al), nickel (Ni), manganese (Mn), tungsten (W), graphite (C) etc., make the idiosome original washing powder, through sieving and washing, grind, the ultrasonic wave homogenize, workpiece 9 moulding, workpiece 9 demouldings, in order to make metallic molecule group obtain the more amount of separating out in workpiece 9 bottoms, adopt mouth to go up the beneath position of firing, push electric kiln, in order to stop the oxidation of metal ingredient in the idiosome to greatest extent, strengthen the reduction reaction of metal, separate out in the bottom of workpiece 9, lay a coke layer in the bottom of idiosome spare, through intensification → insulation → cooling three phases, obtain the ceramic blank workpiece 9 that a rich metal level is arranged at a bottom.
According to identical making principle, ceramic blank workpiece 9 surfaces are coated with muffle painting and fire, obtain the ceramic workpiece 9 that a rich metal level is arranged at a bottom equally.
Endless metal magnetic conduction coating 4 batchings, the silver oxide powder that claims 93 grams, 6 gram graphite (oxycarbide) powder, 1 gram nickel oxide powder mixes is poured in the stainless cylinder of steel, adding liquid 50 gram polyvinyl alcohol again contracts and decides urea formaldehyde (pvb) and carry out wet ball-milling, the ultrasonic wave homogenize after 10 hours, is contained in the spray gun pressure hold-up vessel 14 to be painted.
Insulation precipitation phase at ceramic workpiece 9 muffle paintings, by transfer limes ceramic workpiece 9 through 180 ° of rotations after (end down suitable for reading position), being transported to an envrionment temperature is jet chamber, 800 ℃ of left and right sides, the metal magnetic conducting powder under high pressure is sprayed at the magnetic conduction ceramic pot the bottom of a pan 1 outside surface or outer side, an above endless metal magnetic conduction coating 4, coating thickness is 0.5～0.8 millimeter, spraying annular metal magnetic conducting powder is at 22g～26g, progressively cooling is incubated at last in 60 ℃～80 ℃ conditions of envrionment temperature and came out of the stove in following 4 hours.
Because the quality difference of potter's clay, synthetic idiosome original washing powder percentage composition also is not quite similar, in addition, the form weight of workpiece 9 also all is a variable, so all will decide according to practical work piece 9 for the number of turns, the thickness of endless metal magnetic conduction coating 4, the parameter of the temperature and time in same ceramic idiosome, muffle painting sintering procedure (intensification → insulation → cooling) three phases also changes thereupon.Fig. 3 is process period of the present invention and thetagram, show the sintering technology that the present invention has adopted progressively intensification, classification cooling, stable state to be incubated by figure, in order to obtain separating out of magnetic conductive metal molecule even, as much as possible, in temperature control, should avoid the knee point that skyrockets or fall suddenly as far as possible.To avoid the lattice brittle failure between molecular crystal, the progression of classification cooling can divide some more.In time control, should grow as far as possible, the firing of pottery, the high temperature and high pressure of endless metal magnetic conduction coating 4, certain stress concentration that made the product accumulated inside, sufficient timeliness, be beneficial to the stress relief between molecular crystal, avoid the production of product and the cracking in user's use, thereby cause product failure to be scrapped.
The present invention has adopted endless metal magnetic conduction coating 4 bottom outer surface static type spraying method (see figure 4)s; With endless metal magnetic conduction coating 4 bottoms, the rotary spraying method (see figure 5) of outer surface; For the workpiece 9 that only needs bottom spraying endless metal magnetic conduction coating 4, after workpiece 9 was transfused to the jet chamber, the shower nozzle 10 that sensor-based system is directly controlled the top extend into workpiece 9 surfaces; The metal magnetic conducting powder that configures sprays in workpiece surface through pressure storage 14, trunnion 12, shower nozzle 10, if outer surface needs spraying simultaneously, then sensor-based system is controlled frame 11 inclinations one angle, and 360 ° of rotations of workpiece bottom rotating mechanism do simultaneously get final product.
Because workpiece 9 sprayed coating surfaces smooth and whether clean the magnetic conduction/conductivity that will directly influence endless metal magnetic conduction coating 4, in case phenomenons such as being mingled with appears in workpiece 9 sprayed coating surfaces, bubble, will produce product spraying " flaking " phenomenon, punch-through takes place in user's use, so directly cause scrapping of product. should be provided with the dust suction supplementary unit of surfacing and cleaning in the jet chamber, also should clean the burr of seam crossing between annular metal magnetic conducting coating 4 and muffle painting after the product spraying, with smooth finish and the planeness of guaranteeing product surface.
Claims (1)
1. metal magnetic conduction ceramic pot, comprise the bottom of a pan, pot body, pot cover and annular magnetic layer, the bottom of a pan (1) outside surface and pot body (2) outer side that it is characterized in that described magnetic conduction ceramic pot have one or more endless metal magnetic conduction coating (4), the magnetic conduction coating (4) of this magnetic conduction ceramic pot content by weight percentage is: silver (Ag) 85～98%, graphite (C) 0～15%, nickel (Ni) 0～2.5%; The magnetic conduction coat-thickness is 0.5～0.8 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910200917A CN101717277A (en) | 2009-12-25 | 2009-12-25 | Metal magnetic conduction ceramic pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910200917A CN101717277A (en) | 2009-12-25 | 2009-12-25 | Metal magnetic conduction ceramic pot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101717277A true CN101717277A (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910200917A Pending CN101717277A (en) | 2009-12-25 | 2009-12-25 | Metal magnetic conduction ceramic pot |
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|---|---|
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358805A (en) * | 2011-09-22 | 2012-02-22 | 慧智科技（中国）有限公司 | Water-based electromagnetic inducting coating of ware for induction cooker |
| CN106175408A (en) * | 2016-07-22 | 2016-12-07 | 湖北荣太炊具有限公司 | One can electromagnetic heating container and manufacture method thereof |
| CN106889862A (en) * | 2015-12-21 | 2017-06-27 | 王双喜 | A kind of ceramic inner electromagnetic electric cooker |
| CN107090578A (en) * | 2016-11-22 | 2017-08-25 | 佛山市顺德区美的电热电器制造有限公司 | A kind of magnetic conduction coating of compact structure and preparation method thereof |
| CN105982560B (en) * | 2015-02-13 | 2018-08-07 | 佛山市顺德区美的电热电器制造有限公司 | Cookware and electromagnetic heating cooking utensil for electromagnetic heating culinary art |
| CN108937608A (en) * | 2018-06-21 | 2018-12-07 | 湖北华强日用玻璃有限公司 | The processing technology of glass magnetic conducting and heating disk |
| CN109091016A (en) * | 2017-06-20 | 2018-12-28 | 佛山市顺德区美的电热电器制造有限公司 | Magnetic conduction coating composition, electromagnetic heating cookware and preparation method thereof and equipment of cooking |
| CN112877684A (en) * | 2021-01-12 | 2021-06-01 | 江西省科学院应用物理研究所 | Cu alloy magnetic conductive coating and preparation method thereof |
-
2009
- 2009-12-25 CN CN200910200917A patent/CN101717277A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358805A (en) * | 2011-09-22 | 2012-02-22 | 慧智科技（中国）有限公司 | Water-based electromagnetic inducting coating of ware for induction cooker |
| CN105982560B (en) * | 2015-02-13 | 2018-08-07 | 佛山市顺德区美的电热电器制造有限公司 | Cookware and electromagnetic heating cooking utensil for electromagnetic heating culinary art |
| CN106889862A (en) * | 2015-12-21 | 2017-06-27 | 王双喜 | A kind of ceramic inner electromagnetic electric cooker |
| CN106175408A (en) * | 2016-07-22 | 2016-12-07 | 湖北荣太炊具有限公司 | One can electromagnetic heating container and manufacture method thereof |
| CN107090578A (en) * | 2016-11-22 | 2017-08-25 | 佛山市顺德区美的电热电器制造有限公司 | A kind of magnetic conduction coating of compact structure and preparation method thereof |
| CN107090578B (en) * | 2016-11-22 | 2020-04-24 | 佛山市顺德区美的电热电器制造有限公司 | Magnetic conductive coating with compact structure and preparation method thereof |
| CN109091016A (en) * | 2017-06-20 | 2018-12-28 | 佛山市顺德区美的电热电器制造有限公司 | Magnetic conduction coating composition, electromagnetic heating cookware and preparation method thereof and equipment of cooking |
| CN108937608A (en) * | 2018-06-21 | 2018-12-07 | 湖北华强日用玻璃有限公司 | The processing technology of glass magnetic conducting and heating disk |
| CN112877684A (en) * | 2021-01-12 | 2021-06-01 | 江西省科学院应用物理研究所 | Cu alloy magnetic conductive coating and preparation method thereof |
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Application publication date: 20100602 |