CN102391740B - Electromagnetic induction coating of ware for induction cooker - Google Patents
Electromagnetic induction coating of ware for induction cooker Download PDFInfo
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- CN102391740B CN102391740B CN 201110282528 CN201110282528A CN102391740B CN 102391740 B CN102391740 B CN 102391740B CN 201110282528 CN201110282528 CN 201110282528 CN 201110282528 A CN201110282528 A CN 201110282528A CN 102391740 B CN102391740 B CN 102391740B
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Abstract
The invention relates to electromagnetic induction coating of a ware for an induction cooker. The electromagnetic induction coating is characterized by comprising the following components in parts by weight: 8 to 12 parts of silver oxide, 3 to 5 parts of boron glass powder, 2 to 5 parts of iron powder, 5 to 10 parts of adhesive and 20 to 30 parts of organic solvent, wherein the adhesive is polyvinyl butyral resin and/or ethyl cellulose; the organic solvent is terpinol, diphenyl ether or glycerol; and the grain size of the iron powder is 100 to 400 meshes. The coating is prepared from the mainraw material of sliver oxide, does not comprises lead compounds and can be applied to non-magnetic-conductive materials such as ceramic, glass wares and the like; the preparation process is simple; the baking temperature is low; energy is saved; the iron powder is added into the raw materials, so cost is effectively reduced; the bonding fastness of the coating and the surface of the ware is high;the coating can be used for a long time; no harmful substances are produced in the heating process; and the coating is safe and practicable.
Description
Technical field
The present invention relates to a kind of coating for the electromagnetic oven vessel, especially a kind of electromagnetic oven electromagnetic induction coating of vessel.
Background technology
Electromagnetic oven more and more is subjected to human consumer's favor because of characteristics such as it is efficient, energy-saving and environmental protection.Electromagnetic oven is used electromagnetic induction principle food is heated.The boiler face of electromagnetic oven is the heat-stable ceramic plate, and exchange current produces magnetic field by the coil of ceramic plate below, and when the magnetic line of force magnetic field in passed bottom such as iron pan, Stainless Steel Kettle, the generation eddy current made the bottom of a pan generate heat rapidly, reaches the purpose of heated food.
Because the non-magnetic material can not effectively converge magnetic line of force, almost can not form eddy current, so do not heat basically; In addition, the magneticsubstance that conductive capability is poor especially is because its resistivity is too high, and the eddy current of generation is also very little, can not fine generation heat.So the pot body material that electromagnetic oven uses is that conductivity is better relatively, the metal of ferromagnetic substance or alloy and their complex body.The human consumer simultaneously also preference use the pottery pot of high insulating effect, lightly how other cooking utensils such as aluminum pot easily are applied to electromagnetic oven with these cooking apparatuss, become the problem that presses for solution.
CN1900020A discloses a kind of method for producing electromagnetic stove ceramic cooking utensil that has magnetic resonant heating film, be raw material with silver, film is attached to the bottom that is heated of pottery by processes such as ball milling batching, die, pad pasting, decoration firings, realized the use of pottery on electromagnetic oven, but manufacturing procedure is more, the temperature required height of decoration firing, and cost is higher.It is raw material with the silver hydroxide that CN1448453A discloses a kind of, the method for the electromagnetic induction exothermic paint by prepared such as ball milling, thickening, aging and stirrings; It is the preparation method of the electromagnetic induction exothermic paint of raw material with silver hydroxide and silver suboxide that CN1648174A discloses a kind of, has realized pottery and the use of glassware on electromagnetic oven; It is the coating of raw material with silver powder and carbonyl iron dust that CN1872786A discloses a kind of, but the raw material of above-mentioned patent all also has lead compound in forming, and can produce toxic substance in the process of pyroprocessing, and human body is worked the mischief.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the electromagnetic induction coating of a kind of electromagnetic oven with vessel is provided, preparation technology is simple, and storing temperature is low, save energy; And unharmful substance produces in the heat-processed, and is safe and practical.
According to technical scheme provided by the invention, the described electromagnetic oven electromagnetic induction coating of vessel, feature is, comprises following component, and the component ratio is counted by weight: 8 ~ 12 parts of silver suboxides, 3 ~ 5 parts of boron glass powder, 2 ~ 5 parts of iron powders, 5 ~ 10 parts of tackiness agents, 20 ~ 30 parts of organic solvents.
Described tackiness agent is polyvinyl butyral resin and/or ethyl cellulose.
Described organic solvent is Terpineol 350, phenyl ether or glycerine.
The mass ratio of described organic solvent and tackiness agent is 70 ~ 85:15 ~ 30.
Described iron powder particle diameter is 100 ~ 400 orders.
Coating of the present invention is that main raw material is prepared from the silver suboxide, not lead-containing compounds; Can be used for non-magnetic materials such as pottery, glassware; Preparation technology is simple, and storing temperature is low, and save energy adds iron powder in the raw material, effectively reduced cost, coating and vessel surface in conjunction with the fastness height, but life-time service, unharmful substance produces in the heat-processed, and is safe and practical.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Silver suboxide used in the present invention is close with boron glass powder component type, is conducive to be dispersed in wherein, can resolve into the silver of steady state in high-temperature process rapidly, forms the good conductor of heat and electricity, can reduce the cost of raw material simultaneously.
The used boron glass powder main component of the present invention is silicon-dioxide, boron trioxide, sodium oxide, aluminum oxide and potassium oxide.The boron glass powder can reduce refractoriness in tackiness agent, impel the formation vitreum, increases flowability and the wettability of tackiness agent, and tackiness agent is evenly distributed around powder granule, reduces the contraction of tackiness agent, improves the cohesive strength of powder granule and body material.
Iron powder particle diameter used in the present invention is 100 ~ 400 orders, can be dispersed in uniformly in the slurry, and simultaneously iron powder also has good electromagnetic induction performance, and the adding of iron powder can partly substitute silver powder, and the consumption of minimizing silver powder effectively reduces cost.
Tackiness agent used in the present invention is polyvinyl butyral resin and/or ethyl cellulose, polyvinyl butyral resin has the higher transparency, winter hardiness, shock-resistant, anti-uv irradiation, with metal, glass, timber, pottery, fibre product etc. good cohesive force is arranged.Based on its good wettability, wet strength and when 300 ~ 400 ℃ of temperature, do not form corrosive gases and do not have residue and decompose well, polyvinyl butyral resin is particularly suitable for doing the binding agent of printing-ink.Ethyl cellulose claims cellulosic ether again, and is water insoluble, and is dissolved in different organic solvents, Heat stability is good, and ash is extremely low during burning, the adhesion sense is seldom arranged or send out puckery, can generate tough and tensile film, still can keep flexibility when low temperature, and is nontoxic.
The particle diameter that employed iron powder adopts Suzhou City gold fringe powder metallurgy company limited to sell in the embodiments of the invention is 150 purpose iron powders, what silver suboxide used reaches the silver suboxide that chemical industry company limited produces as the Asia, Qingdao City, the particle diameter that the boron glass powder adopts the auspicious ceramic company limited of Zhengzhou dragon to produce is 320 purpose boron glass powder, polyvinyl butyral acetal adopts the product of the first promise of the U.S., but is not limited only to above listed medicine.
Embodiment one:
Silver suboxide, 50g boron glass powder, the iron powder of 20g, the 50g polyvinyl butyral resin of getting 80g are dissolved in the 200g Terpineol 350, mix, and grind 3 circulations by three-roll grinder, make electromagnetic induction coating; Glassware is placed under the 150 order silk screen plates then, print with electromagnetic induction coating; Glassware after the printing is placed 590 ℃ of baking 10min, and the film forming thickness of described electromagnetic induction coating on the glassware surface is 50 μ m.
Add the 1L tap water and place the electromagnetic oven of power 800W to heat 8 minutes in above-mentioned glassware, water temperature can reach 100 ℃.
Embodiment two:
The silver suboxide, 30g boron glass powder, the iron powder of 30g, the ethyl cellulose of 80g of getting 100g are dissolved in the 320g phenyl ether, mix, and grind 3 circulations by three-roll grinder, make electromagnetic induction coating; Pottery is placed under the 150 order silk screen plates then, print with electromagnetic induction coating; Pottery after the printing is placed 570 ℃ of baking 15min.The film forming thickness of described electromagnetic induction coating on the pottery surface is 150 μ m.
Add the 1L tap water and place the electromagnetic oven of power 800W to heat 7.5 minutes in above-mentioned pottery, water temperature can reach 100 ℃.
Embodiment three:
Get silver suboxide, the 40g boron glass powder of 120g, iron powder, 35g polyvinyl butyral resin and the 40g ethyl cellulose of 50g is dissolved in 425g glycerine, mixes, and grinds 3 circulations by three-roll grinder, makes electromagnetic induction coating; Aluminium ware is placed under the 150 order silk screen plates then, print with electromagnetic induction coating; Aluminium ware after the printing is placed 550 ℃ of baking 20min.The film forming thickness of described electromagnetic induction coating on the aluminium ware surface is 100 μ m.
Add the 1L tap water and place the electromagnetic oven of power 800W to heat 8.5 minutes in above-mentioned aluminium ware, water temperature can reach 100 ℃.
Claims (4)
1. the electromagnetic induction coating of electromagnetic oven usefulness vessel is characterized in that be made up of following component, the component ratio is counted by weight: 8 ~ 12 parts of silver suboxides, 3 ~ 5 parts of boron glass powder, 2 ~ 5 parts of iron powders, 5 ~ 10 parts of tackiness agents, 20 ~ 30 parts of organic solvents;
The main component of described boron glass powder is silicon-dioxide, boron trioxide, sodium oxide, aluminum oxide and potassium oxide;
The particle diameter that described iron powder adopts Suzhou City gold fringe powder metallurgy company limited to sell is 150 purpose iron powders, and the particle diameter that described boron glass powder adopts the auspicious ceramic company limited of Zhengzhou dragon to produce is 320 purpose boron glass powder.
2. electromagnetic induction coating as claimed in claim 1, it is characterized in that: described tackiness agent is polyvinyl butyral resin and/or ethyl cellulose.
3. electromagnetic induction coating as claimed in claim 1, it is characterized in that: described organic solvent is Terpineol 350, phenyl ether or glycerine.
4. electromagnetic induction coating as claimed in claim 1, it is characterized in that: the mass ratio of described organic solvent and tackiness agent is 70 ~ 85:15 ~ 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110282528 CN102391740B (en) | 2011-09-22 | 2011-09-22 | Electromagnetic induction coating of ware for induction cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110282528 CN102391740B (en) | 2011-09-22 | 2011-09-22 | Electromagnetic induction coating of ware for induction cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102391740A CN102391740A (en) | 2012-03-28 |
| CN102391740B true CN102391740B (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110282528 Active CN102391740B (en) | 2011-09-22 | 2011-09-22 | Electromagnetic induction coating of ware for induction cooker |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111662579A (en) * | 2020-05-22 | 2020-09-15 | 广东日禾电器有限公司 | Heating coating material for ceramic substrate and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4959516A (en) * | 1988-05-16 | 1990-09-25 | Dennison Manufacturing Company | Susceptor coating for localized microwave radiation heating |
| CN1648174A (en) * | 2004-01-19 | 2005-08-03 | 陈梓平 | Electromagnetic induction heat emitting paint and its preparing method |
-
2011
- 2011-09-22 CN CN 201110282528 patent/CN102391740B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4959516A (en) * | 1988-05-16 | 1990-09-25 | Dennison Manufacturing Company | Susceptor coating for localized microwave radiation heating |
| CN1648174A (en) * | 2004-01-19 | 2005-08-03 | 陈梓平 | Electromagnetic induction heat emitting paint and its preparing method |
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| Publication number | Publication date |
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| CN102391740A (en) | 2012-03-28 |
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