CN103417126A - Metal base non-sticking cooker and production method - Google Patents
Metal base non-sticking cooker and production method Download PDFInfo
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- CN103417126A CN103417126A CN2013103617085A CN201310361708A CN103417126A CN 103417126 A CN103417126 A CN 103417126A CN 2013103617085 A CN2013103617085 A CN 2013103617085A CN 201310361708 A CN201310361708 A CN 201310361708A CN 103417126 A CN103417126 A CN 103417126A
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Abstract
The invention relates to a metal base non-sticking cooker and a production method. The non-sticking cooker comprises a metal base and a non-sticking coating which is arranged on the surface of the metal base. The non-sticking cooker is characterized in that in a process of producing the metal base non-sticking cooker, before the coating is sprayed onto the surface of the metal base, an insulating layer with the thickness of 0.5-5 micrometers is arranged on the surface of the metal base through utilizing a chemical film depositing method. The insulating layer is arranged between the metal base and the non-sticking coating, so that a plurality of micropores are formed in the non-sticking coating, when the non-sticking cooker is used, water, salt water or other soup cannot seep into the metal base through the micropores, and primary batteries cannot be corroded to cause the non-sticking coating to be locally bubbled and fall off.
Description
Technical field
The invention belongs to non-sticking cooking utensils and the manufacture method of a kind of non-sticking cooking utensils, particularly a kind of metal base.
Background technology
At present, the base material of the non-sticking cooking utensils of metal base (the interior pot that comprises the kitchen small household appliances such as frying pan and electric cooker, electric pressure cooking saucepan) is directly to contact with non-sticking lining, due to after non-sticking lining has not been fully dense or long-term use, can there be some micropores in non-sticking lining, and especially the aqueous fluorine polymer coating micropore is more obvious.Therefore, in use, water, salt solution or other soup juice can infiltrate to metal base by micropore non-sticking cooking utensils, become electrolyte, and the metal surface each point that makes to have different potentials produces potential difference, cause galvanic corrosion occurs and make non-sticking lining locally produce bubble, come off.The base material of aluminizing in the die casting aluminium base material that silicone content is higher or surface, more easily, because galvanic corrosion occurs, have a strong impact on the quality of aluminium base non-stick pan.And, as non-sticking cooking utensils, the foaming of coating, to come off be serious quality problems, but never finds good solution.
Summary of the invention
The objective of the invention is to propose a kind of non-sticking cooking utensils that can not produce the metal base of galvanic corrosion, to overcome the deficiencies in the prior art.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of non-sticking cooking utensils of metal base, comprise and be characterized in the non-sticking lining of metal base and metallic substrate surface: be provided with a layer insulating between described metal base and non-sticking lining.
The present invention also provides a kind of manufacture method of non-sticking cooking utensils of metal base, be characterized in: in the process of the non-sticking cooking utensils of manufacturing metal base, before metallic substrate surface spraying non-sticking lining, use the method for the heavy film of chemistry, in metallic substrate surface, one layer insulating is set.
Be provided with a layer insulating between metal base and non-sticking lining due to the present invention, even make the present invention have some micropores at non-sticking lining, non-sticking cooking utensils in use, water, salt solution or other soup juice can or not infiltrate to metal base by micropore yet, with regard to can not galvanic corrosion occurring, make the local generation of non-sticking lining bubble yet, come off.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-metal base, 2-insulating barrier, 3-non-sticking lining.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Insulating barrier of the present invention has insulating properties under low-voltage (in 1v) state, to prevent non-sticking cooking utensils, in use owing to producing the galvanic cell reaction, the non-sticking lining foaming is come off.Thickness of insulating layer is the 0.5-5 micron.Insulating barrier itself also has good heat-resisting quantity (400 degree more than), the acid and alkali-resistance salt corrosion, and meet the relevant sanitary standard of cooker.And, this insulating barrier also can and non-sticking lining between produce intermolecular snap-in force (Van der Waals force), make between insulating barrier and non-sticking lining to have good binding ability.
Certainly, different metal bases will be selected different insulating barrier kind and thickness of insulating layer.The situation that the superficial layer of base material or base material is aluminium, insulating barrier has olivaceous chromium phosphate (CrPO3) rete, or take aluminum fluosilicate Al2(SiF6) 3 retes that are main body, this rete is the 1-5 micron.The situation that the superficial layer of base material or base material is zinc, insulating barrier is to take the rete that chromium phosphate (CrPO3), chrome green (Cr2O3), zinc oxide (ZnO) be agent structure, the noncrystal structure that this rete is the 0.5-3 micron thick.The situation that the superficial layer of base material or base material is iron, insulating barrier is to take the amorphous state passivation film that ferric phosphate (FePO3), di-iron trioxide (Fe2O3) be agent structure, the noncrystal structure that this passivation film is the 3-5 micron thick.
The non-sticking lining of described non-sticking cooking utensils mainly contains fluoropolymer coating and take silica, aluminium oxide is main inanimate matter ceramic coating.
Embodiment 1:
First cast aluminum-molykote composite material frying pan substrate surface is polished, the machining processes such as shot-peening, and carry out cleaning, drying, as the base material of sticky frying pan not.Base material being immersed to chromic acid (CrO3) and phosphoric acid (H3PO3) is in master's solution again, and under normal temperature, through the reaction of 3-5 minute, the chromium phosphate (CrPO3) that produces the 1-5 micron was main rete, as not gluing the base material of frying pan and the insulating barrier between non-sticking lining.Finally, spray again the teflon coating (double-deck or three coatings) of one deck water-based at surface of insulating layer, and by the requirement of coating through sintering, form the not non-sticking lining of sticky frying pan, non-sticking lining thickness is the 30-50 micron, this sticky frying pan under 10% salt solution 100 degree states after the test of 20 hours, not sticky frying pan surface does not produce hot spot, and there is no sticky frying pan of insulating barrier, with under 10% same salt solution 100 degree states after the test of 20 hours, sticky frying pan surface has produced many places foaming, hot spot.
Embodiment 2(Fig. 1):
First the thick aluminium sheet by 1.5mm, become the shape of electric cooker inner container, and carry out cleaning, drying by die drawn, cannot not create stickyly the base material of electric cooker inner container.Base material being immersed to chromic acid (CrO3) and phosphoric acid (H3PO3) is in master's solution again, and under normal temperature, through the reaction of 3-5 minute, the chromium phosphate (CrPO3) that produces the 1-5 micron was main rete, as the base material of electric cooker inner container and the insulating barrier between non-sticking lining.Finally, spray again the teflon coating (primary coat and face are coated with dual-coating) of one deck water-based at surface of insulating layer, and by the requirement of coating through sintering (maximum temperature is 380 degree), form the non-sticking lining of electric cooker inner container, non-sticking lining thickness is the 20-30 micron, this sticky electric cooker inner container is through cooking and after insulation in 72 hours, not sticky electric cooker inner container surface does not produce gas, and there is no sticky electric cooker inner container of insulating barrier, use the same method and cook and, after insulation in 72 hours, do not glue the electric cooker inner container surface and produced bubble.
Embodiment 3:
First the thick aludip by 1.2mm, become the shape of frying pan, then this carried out to crimping, flanging operation, and carry out cleaning, drying by die drawn, creates the base material of frying pan.Again base material is immersed in prodan Na2SiF6, zinc fluoride ZnF2 solution, 90-100 degree reaction 3-8 minute,, producing 1-5 micron white or linen aluminum fluosilicate is main rete, as the base material of frying pan and the insulating barrier between non-sticking lining.Finally, spraying one deck at surface of insulating layer, to take silica, aluminium oxide be main inanimate matter ceramic coating again, and by the requirement of coating through sintering (maximum temperature is 280 degree), the non-sticking lining of formation frying pan, non-sticking lining thickness is the 30-40 micron.This non-stick frying pan is under 10% salt solution 100 degree states after the test of 20 hours, and the non-stick frying pan surface does not produce hot spot.And there is no the non-stick frying pan of insulating barrier, with under 10% same salt solution 100 degree states after the test of 20 hours, the non-stick frying pan surface has produced several hot spots.
Embodiment 4:
First the thick galvanized steel plain sheet by 1.0mm, become the shape of electric cooker (or electric pressure cooking saucepan) inner bag, then this carried out to crimping, flanging operation, and carry out cleaning, drying by die drawn, cannot not create stickyly the base material of inner container of electric pressure cooker.Base material is immersed in the solution that contains the multiple acid combination such as chromic acid, phosphoric acid, sulfuric acid, hydrochloric acid again, process 0.5-3 minute under normal temperature, the passivation film that chromium phosphate (CrPO3), chrome green (Cr2O3), zinc oxide (ZnO) are agent structure is take in generation, the noncrystal structure that this passivation film is the 0.5-3 micron thick, as not gluing the galvanized steel plain sheet base material of inner container of electric pressure cooker and the insulating barrier between non-sticking lining.Finally, spray again the teflon coating of one deck water-based bilayer on noncrystal passivation film surface, and by the requirement of coating through sintering (maximum temperature is 380 degree), form the not non-sticking lining of sticky electric cooker inner container, non-sticking lining thickness is the 25-40 micron, this sticky electric cooker inner container cleans after 7 hours through 5% salt water boil, and after repeating to test for 3 times, sticky frying pan surface does not produce foaming, hot spot.
Embodiment 5:
First the thick steel plate by 1.0mm, become the shape of slaughterhouse, then this carried out to crimping, flanging operation, and carry out cleaning, drying by die drawn, cannot not create stickyly the base material of slaughterhouse.Again base material is immersed in the solution that contains potassium dihydrogen phosphate (KH2PO4), natrium nitrosum (NaNO2), sodium nitrate (NaNO3) and nonionic surfactant combinations, process 3-5 minute under normal temperature, the amorphous state passivation film that ferric phosphate (FePO3), di-iron trioxide (Fe2O3) are agent structure is take in generation, the noncrystal structure that this passivation film is the 3-5 micron thick, as the insulating barrier between not sticky slaughterhouse substrate of steel plate and non-sticking lining.Finally, spraying one deck at surface of insulating layer, to take silica, aluminium oxide be main inanimate matter ceramic coating again, and by the requirement of coating through sintering (maximum temperature is 280 degree), the non-sticking lining of formation slaughterhouse, non-sticking lining thickness is the 30-40 micron.This sticky slaughterhouse cleans after 7 hours through 5% salt water boil, and after repeating to test for 3 times, sticky frying pan surface does not produce foaming, hot spot.
The content be not described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (7)
1. the non-sticking cooking utensils of a metal base, comprise metal base and the non-sticking lining that is arranged on metallic substrate surface, it is characterized in that: also be provided with a layer insulating between described metal base and non-sticking lining.
2. the non-sticking cooking utensils of a kind of metal base as claimed in claim 1, it is characterized in that: the thickness of described insulating barrier is the 0.5-5 micron.
3. the non-sticking cooking utensils of a kind of metal base as claimed in claim 1, its manufacture method is: in the process of the non-sticking cooking utensils of manufacturing metal base, before metallic substrate surface spraying non-sticking lining, use the method for the heavy film of chemistry, in metallic substrate surface, one layer insulating is set.
4. the manufacture method of the non-sticking cooking utensils of a kind of metal base as claimed in claim 3, it is characterized in that: described metal base is aluminium sheet, and its manufacture method is:
First base material is made to required cooker shape, then base material is immersed in the solution of chromic acid and phosphoric acid, the process reaction of 3-5 minute under normal temperature, produce the rete of the chromium phosphate of 1-5 micron on substrate surface, finally, the surface spraying one deck non-sticking lining at described rete, complete manufacture process.
5. the manufacture method of the non-sticking cooking utensils of a kind of metal base as claimed in claim 3, it is characterized in that: described metal base is galvanized steel plain sheet, and its manufacture method is:
First base material is made to required cooker shape, again base material is immersed in prodan Na2SiF6 and zinc fluoride ZnF2 solution, through 90-100 degree centigrade of reaction 3-8 minute, produce at substrate surface the rete that the 1-5 micron is white or linen aluminum fluosilicate is the master, as the insulating barrier between base material and non-sticking lining, finally, at surface of insulating layer, spray again one deck non-sticking lining, complete manufacture process.
6. the manufacture method of the non-sticking cooking utensils of a kind of metal base as claimed in claim 3, it is characterized in that: described metal base is galvanized steel plain sheet, and its manufacture method is:
First base material is made to required cooker shape, base material is immersed in the solution that contains the multiple acid combination of chromic acid, phosphoric acid, sulfuric acid and hydrochloric acid again, process 0.5-3 minute under normal temperature, produce and take the passivation film that chromium phosphate, chrome green and zinc oxide is agent structure at substrate surface, the noncrystal structure that this passivation film is the 0.5-3 micron thick, as the insulating barrier between base material and non-sticking lining, last, spray again one deck non-sticking lining at surface of insulating layer, complete manufacture process.
7. the manufacture method of the non-sticking cooking utensils of a kind of metal base as claimed in claim 3, it is characterized in that: described metal base is steel plate, and its manufacture method is:
First base material is made to required cooker shape, again base material is immersed in the solution that contains potassium dihydrogen phosphate, natrium nitrosum, sodium nitrate and nonionic surfactant combinations, process 3-5 minute under normal temperature, the amorphous state passivation film that ferric phosphate and di-iron trioxide are agent structure is take in generation, the noncrystal structure that this passivation film is the 3-5 micron thick, as the insulating barrier between base material and non-sticking lining, last, spray again one deck non-sticking lining at surface of insulating layer, complete manufacture process.
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Cited By (5)
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| CN105586582A (en) * | 2016-03-10 | 2016-05-18 | 湖北荣太炊具有限公司 | Base layer of non-stick product coating and manufacturing method thereof |
| WO2016106526A1 (en) * | 2014-12-29 | 2016-07-07 | 深圳市恒兆智科技有限公司 | Film forming agent used in aluminum material stretching |
| CN105780001A (en) * | 2014-12-19 | 2016-07-20 | 佛山市顺德区美的电热电器制造有限公司 | Manufacturing method for pot and pot |
| CN110338629A (en) * | 2018-04-02 | 2019-10-18 | 佛山市顺德区美的电热电器制造有限公司 | Interior pot and cooking apparatus |
| CN113647829A (en) * | 2021-09-14 | 2021-11-16 | 厦门佰顺兴自动化科技有限公司 | Frying pan and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105780001A (en) * | 2014-12-19 | 2016-07-20 | 佛山市顺德区美的电热电器制造有限公司 | Manufacturing method for pot and pot |
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| CN110338629A (en) * | 2018-04-02 | 2019-10-18 | 佛山市顺德区美的电热电器制造有限公司 | Interior pot and cooking apparatus |
| CN110338629B (en) * | 2018-04-02 | 2021-09-28 | 佛山市顺德区美的电热电器制造有限公司 | Inner pot and cooking utensil |
| CN113647829A (en) * | 2021-09-14 | 2021-11-16 | 厦门佰顺兴自动化科技有限公司 | Frying pan and manufacturing method thereof |
| CN113647829B (en) * | 2021-09-14 | 2023-04-14 | 厦门佰顺兴自动化科技有限公司 | Frying pan and manufacturing method thereof |
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| CN103417126B (en) | 2015-12-02 |
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Effective date of registration: 20170504 Address after: Xiaogan City, Hubei province 432800 Daxin Town Dawu County Patentee after: HUBEI RONGTAI COOKING UTENSILS CO., LTD. Address before: Wuhan City, Hubei province 430051 Longyang Road, Hanyang District No. 9 Wuhan Tianma self-changing Gears Limited Patentee before: Xu Hongchun |
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