CN103417126B - A kind of manufacture method of metal base non-sticking cooking utensils - Google Patents
A kind of manufacture method of metal base non-sticking cooking utensils Download PDFInfo
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- CN103417126B CN103417126B CN201310361708.5A CN201310361708A CN103417126B CN 103417126 B CN103417126 B CN 103417126B CN 201310361708 A CN201310361708 A CN 201310361708A CN 103417126 B CN103417126 B CN 103417126B
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Abstract
The present invention relates to a kind of manufacture method of metal base non-sticking cooking utensils, described non-sticking cooking utensils comprises metal base and is arranged on the non-sticking lining of metallic substrate surface, be characterized in: in the process of non-sticking cooking utensils manufacturing metal base, before metallic substrate surface spraying non-sticking lining, use the method for the heavy film of chemistry that the insulating barrier of a layer thickness for 0.5-5 micron is set in metallic substrate surface.Because the present invention is provided with a layer insulating between metal base and non-sticking lining, even if make the present invention there are some micropores at non-sticking lining, non-sticking cooking utensils in use, water, salt solution or other soup juice can also can not be infiltrated to metal base by micropore, also galvanic corrosion would not occur and make non-sticking lining local produce bubble, come off.
Description
Technical field
The invention belongs to a kind of non-sticking cooking utensils, particularly a kind of manufacture method of metal base non-sticking cooking utensils.
Background technology
At present, the base material of the non-sticking cooking utensils (comprising the interior pot of frying pan and the kitchen such as electric cooker, electric pressure cooking saucepan small household appliances) of metal base is directly contact with non-sticking lining, because non-sticking lining has not been fully dense or after Long-Time Service, can be there are some micropores in non-sticking lining, especially aqueous fluorine polymer coating micropore is more obvious.Therefore, in use, water, salt solution or other soup juice can be infiltrated to metal base by micropore non-sticking cooking utensils, become electrolyte, and make the metal surface each point with different potentials produce potential difference, cause galvanic corrosion occurring and making non-sticking lining local produce bubble, come off.The die casting aluminium base material that silicone content is higher or the base material aluminized in surface, easier because there is galvanic corrosion, 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 object 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 non-sticking cooking utensils for metal base, comprises the non-sticking lining of metal base and metallic substrate surface, is characterized in: between described metal base and non-sticking lining, be provided with a layer insulating.
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 non-sticking cooking utensils manufacturing metal base, before metallic substrate surface spraying non-sticking lining, use the method for the heavy film of chemistry that one layer insulating is set in metallic substrate surface.
Because the present invention is provided with a layer insulating between metal base and non-sticking lining, even if make the present invention there are some micropores at non-sticking lining, non-sticking cooking utensils in use, water, salt solution or other soup juice can also can not be infiltrated to metal base by micropore, also galvanic corrosion would not occur and make non-sticking lining local produce bubble, come off.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-metal base, 2-insulating barrier, 3-non-sticking lining.
Detailed description of the invention
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 (within 1v) state, with prevent non-sticking cooking utensils in use due to produce galvanic interaction and make non-sticking lining bubble come off.Thickness of insulating layer is 0.5-5 micron.Insulating barrier itself also has good heat-resisting quantity (more than 400 degree), acid and alkali-resistance salt corrosion, and the related sanitary standard meeting cooker.Further, this insulating barrier also can and non-sticking lining between produce intermolecular snap-in force (Van der Waals force), make that there is between insulating barrier and non-sticking lining good binding ability.
Certainly, different metal bases will select different insulating barrier kinds and thickness of insulating layer.The superficial layer of base material or base material is the situation of aluminium, and insulating barrier has olivaceous chromium phosphate (CrPO
4) rete, or with aluminum fluosilicate Al
2(SiF
6)
3for the rete of main body, this rete is 1-5 micron.The superficial layer of base material or base material is the situation of zinc, and insulating barrier is with chromium phosphate (CrPO
4), chrome green (Cr
2o
3), zinc oxide (ZnO) rete that is agent structure, this rete is the noncrystal structure of 0.5-3 micron thickness.The superficial layer of base material or base material is the situation of iron, and insulating barrier is with ferric phosphate (FePO
4), di-iron trioxide (Fe
2o
3) be the amorphous state passivation film of agent structure, this passivation film is the noncrystal structure of 3-5 micron thickness.
The non-sticking lining of described non-sticking cooking utensils mainly contains fluoropolymer coating and based on the inanimate matter ceramic coating of silica, aluminium oxide.
Embodiment 1:
First cast aluminum-molykote composite material frying pan substrate surface is carried out polishing, the machining processes such as shot-peening, and carry out cleaning, drying, as the base material of sticky frying pan.Again base material is immersed chromic acid (CrO
3) and phosphoric acid (H
3pO
4) be in the solution of master, through the reaction of 3-5 minute under normal temperature, produce the chromium phosphate (CrPO of 1-5 micron
4) be main rete, as the insulating barrier do not glued between the base material of frying pan and non-sticking lining.Finally, the teflon coating (double-deck or three coatings) of one deck water-based is sprayed again at surface of insulating layer, and by coating requirement through sintering, form the non-sticking lining of not sticky frying pan, non-sticking lining thickness is 30-50 micron, this sticky frying pan under 10% salt solution, 100 degree of states after the test of 20 hours, not sticky frying pan surface does not produce hot spot, and there is no the not sticky frying pan of insulating barrier, with under same 10% salt solution, 100 degree of states after the test of 20 hours, sticky frying pan surface creates that bubble in many places, hot spot.
Embodiment 2 (Fig. 1):
First by aluminium sheet thick for 1.5mm, become the shape of electric cooker inner container by die drawn, and carry out cleaning, drying, cannot not create stickyly the base material of electric cooker inner container.Again base material is immersed chromic acid (CrO
3) and phosphoric acid (H
3pO
4) be in the solution of master, through the reaction of 3-5 minute under normal temperature, produce the chromium phosphate (CrPO of 1-5 micron
4) be main rete, as the insulating barrier between the base material of electric cooker inner container and non-sticking lining.Finally, the teflon coating (primary coat and face are coated with dual-coating) of one deck water-based is sprayed again at surface of insulating layer, and by coating requirement through sintering (maximum temperature is 380 degree), form the non-sticking lining of electric cooker inner container, non-sticking lining thickness is 20-30 micron, this sticky electric cooker inner container is after cooking and be incubated through 72 hours, not sticky electric cooker inner container surface does not produce gas, and there is no the not sticky electric cooker inner container of insulating barrier, use the same method and cook and after insulation in 72 hours, do not glue electric cooker inner container surface and create bubble.
Embodiment 3:
First by aludip thick for 1.2mm, become the shape of frying pan by die drawn, then this is carried out to crimping, flanging operation, and carry out cleaning, drying, create the base material of frying pan.Again base material is immersed prodan Na
2siF
6, zinc fluoride ZnF
2in solution, 90-100 degree reaction 3-8 minute, produce 1-5 micron white or linen aluminum fluosilicate is main rete, as the insulating barrier between the base material of frying pan and non-sticking lining.Finally, spray one deck again based on the inanimate matter ceramic coating of silica, aluminium oxide at surface of insulating layer, and by the requirement of coating through sintering (maximum temperature is 280 degree), form the non-sticking lining of frying pan, non-sticking lining thickness is 30-40 micron.This non-stick frying pan is under 10% salt solution, 100 degree of states after the test of 20 hours, and non-stick frying pan surface does not produce hot spot.And there is no the non-stick frying pan of insulating barrier, with under same 10% salt solution, 100 degree of states after the test of 20 hours, non-stick frying pan surface creates several hot spot.
Embodiment 4:
First by galvanized steel plain sheet thick for 1.0mm, become the shape of electric cooker (or electric pressure cooking saucepan) inner bag by die drawn, then this is carried out to crimping, flanging operation, and carry out cleaning, drying, cannot not create stickyly the base material of inner container of electric pressure cooker.Again base material is immersed in the solution containing the multiple acid combination such as chromic acid, phosphoric acid, sulfuric acid, hydrochloric acid, process 0.5-3 minute under normal temperature, produce with chromium phosphate (CrPO
4), chrome green (Cr
2o
3), zinc oxide (ZnO) passivation film that is agent structure, this passivation film is the noncrystal structure of 0.5-3 micron thickness, as the insulating barrier between the galvanized steel plain sheet base material of sticky inner container of electric pressure cooker and non-sticking lining.Finally, the teflon coating of one deck water-based bilayer is sprayed again on noncrystal passivation film surface, and by coating requirement through sintering (maximum temperature is 380 degree), form the non-sticking lining of not sticky electric cooker inner container, non-sticking lining thickness is 25-40 micron, this not sticky electric cooker inner container cleans after 7 hours through 5% salt water boil, and after repeating 3 tests, not sticky frying pan surface does not produce foaming, hot spot.
Embodiment 5:
First by steel plate thick for 1.0mm, become the shape of slaughterhouse by die drawn, then this is carried out to crimping, flanging operation, and carry out cleaning, drying, cannot not create stickyly the base material of slaughterhouse.Again base material is immersed containing potassium dihydrogen phosphate (KH
2pO
4), natrium nitrosum (NaNO
2), sodium nitrate (NaNO
3) and nonionic surfactant combinations solution in, process 3-5 minute under normal temperature, produce with ferric phosphate (FePO
4), di-iron trioxide (Fe
2o
3) be the amorphous state passivation film of agent structure, this passivation film is the noncrystal structure of 3-5 micron thickness, as sticky insulating barrier between slaughterhouse substrate of steel plate and non-sticking lining.Finally, spray one deck again based on the inanimate matter ceramic coating of silica, aluminium oxide at surface of insulating layer, and by the requirement of coating through sintering (maximum temperature is 280 degree), form the non-sticking lining of slaughterhouse, non-sticking lining thickness is 30-40 micron.This not sticky slaughterhouse cleans after 7 hours through 5% salt water boil, and after repeating 3 tests, not sticky frying pan surface does not produce foaming, hot spot.
The content be not described in detail in this description belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. the manufacture method of a metal base non-sticking cooking utensils, described non-sticking cooking utensils comprises metal base and is arranged on the non-sticking lining of metallic substrate surface, a layer insulating is also provided with between described metal base and non-sticking lining, its manufacture method is: in the process of non-sticking cooking utensils manufacturing metal base, before metallic substrate surface spraying non-sticking lining, use the method for the heavy film of chemistry that one layer insulating is set in metallic substrate surface, it is characterized in that: when the superficial layer of described base material or base material is aluminium, described insulating barrier is for there being olivaceous chromium phosphate rete, or the rete based on aluminum fluosilicate, when the superficial layer of described base material or base material is zinc, the rete that described insulating barrier is is agent structure with chromium phosphate, chrome green, zinc oxide, when the superficial layer of described base material or base material is iron, the amorphous state passivation film that described insulating barrier is is agent structure with ferric phosphate, di-iron trioxide.
2. the manufacture method of metal base non-sticking cooking utensils as claimed in claim 1, is characterized in that: described metal base is aluminium sheet, and its manufacture method is:
First base material is made required cooker shape, then base material is immersed in the solution of chromic acid and phosphoric acid, through the reaction of 3-5 minute under normal temperature, produce the rete of the chromium phosphate of 1-5 micron on substrate surface, finally, at surface spraying one deck non-sticking lining of described rete, manufacture process is completed.
3. the manufacture method of metal base non-sticking cooking utensils as claimed in claim 1, is characterized in that: described metal base is aludip, and its manufacture method is:
First base material is made required cooker shape, then base material is immersed prodan Na
2siF
6and zinc fluoride ZnF
2in solution, through 90-100 degree Celsius of reaction 3-8 minute, be main rete in substrate surface generation 1-5 micron white or linen aluminum fluosilicate, as the insulating barrier between base material and non-sticking lining, finally, spray one deck non-sticking lining again at surface of insulating layer, complete manufacture process.
4. the manufacture method of metal base non-sticking cooking utensils as claimed in claim 1, is characterized in that: described metal base is galvanized steel plain sheet, and its manufacture method is:
First base material is made required cooker shape, again base material is immersed in the solution containing the multiple acid combination of chromic acid, phosphoric acid, sulfuric acid and hydrochloric acid, 0.5-3 minute is processed under normal temperature, the passivation film being agent structure with chromium phosphate, chrome green and zinc oxide is produced at substrate surface, this passivation film is the noncrystal structure of 0.5-3 micron thickness, as the insulating barrier between base material and non-sticking lining, finally, spray one deck non-sticking lining again at surface of insulating layer, complete manufacture process.
5. the manufacture method of metal base non-sticking cooking utensils as claimed in claim 1, is characterized in that: described metal base is steel plate, and its manufacture method is:
First base material is made required cooker shape, again base material is immersed in the solution containing potassium dihydrogen phosphate, natrium nitrosum, sodium nitrate and nonionic surfactant combinations, 3-5 minute is processed under normal temperature, produce the amorphous state passivation film being agent structure with ferric phosphate and di-iron trioxide, this passivation film is the noncrystal structure of 3-5 micron thickness, as the insulating barrier between base material and non-sticking lining, finally, spray one deck non-sticking lining again at surface of insulating layer, complete manufacture process.
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|---|---|---|---|
| CN201310361708.5A CN103417126B (en) | 2013-08-19 | 2013-08-19 | A kind of manufacture method of metal base non-sticking cooking utensils |
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| CN105780001B (en) * | 2014-12-19 | 2018-11-23 | 佛山市顺德区美的电热电器制造有限公司 | The manufacturing method and cookware of cookware |
| 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 |
| 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 |
| 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 |
| 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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| CN201248603Y (en) * | 2008-09-04 | 2009-06-03 | 田海金 | High energy-saving function cast iron oilless-smokeless boiler |
| CN102770583A (en) * | 2009-12-11 | 2012-11-07 | 18纬度有限公司 | Inorganic phosphate corrosion resistant coatings |
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| JPS5239059B1 (en) * | 1964-07-23 | 1977-10-03 | ||
| CN2107216U (en) * | 1991-12-17 | 1992-06-17 | 淄博市劳动局技工学校 | Multi-functional anti-stick enamel electric heater cooker |
| CN101396229B (en) * | 2008-10-13 | 2010-11-03 | 浙江苏泊尔股份有限公司 | Production method of lotus leaf type non-sticking cooking utensils |
| CN201814366U (en) * | 2010-09-29 | 2011-05-04 | 浙江苏泊尔股份有限公司 | Aluminum cooking utensil |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201248603Y (en) * | 2008-09-04 | 2009-06-03 | 田海金 | High energy-saving function cast iron oilless-smokeless boiler |
| CN102770583A (en) * | 2009-12-11 | 2012-11-07 | 18纬度有限公司 | Inorganic phosphate corrosion resistant coatings |
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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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