CN206761356U

CN206761356U - Pan and cooking apparatus

Info

Publication number: CN206761356U
Application number: CN201720052034.4U
Authority: CN
Inventors: 杨玲; 曹达华; 李洪伟; 李兴航; 李康
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2017-01-17
Filing date: 2017-01-17
Publication date: 2017-12-19
Anticipated expiration: 2027-01-17

Abstract

The utility model provides a kind of pan and cooking apparatus, and pan includes：Pot body and plastic insulating cover, pot body are made up of metal material, and the outer surface of pot body is provided with multiple nano level holes；Plastic insulating cover is attached on the outer surface of pot body, and embedded multiple nano level holes.Pan provided by the utility model, by setting up plastic insulating cover on the outer surface of metal pan base so that pan has the advantages of metal pan and ceramic pan concurrently, is neither easy breakage, and durability is preferable, has good heat insulation effect again, and then save electric energy；And use nanometer forming technique, so that plastic insulating cover is closely linked to form integral structure with metal pan base, so as to improve the bond strength of plastic insulating cover and metal pan base, improve the tolerance and service life of pan, and the metal appearance texture of pot body can be taken into account, the design of product construction part can also be simplified, make product lighter and thinner, more cost effect.

Description

Pan and cooking apparatus

Technical field

Cooking apparatus field is the utility model is related to, the cooking pot in particular to a kind of pan and comprising the pan Tool.

Background technology

At present, conventional metal pan is radiated comparatively fast due to material itself, once heating stop temperature is begun to down Drop, is unable to reach good heat insulation effect；Although easily damaged and ceramic pan or carbon pot heat insulation effect are preferable, durability It is poor.

Utility model content

At least one in order to solve the above-mentioned technical problem, a purpose of the present utility model is to provide a kind of pan.

Another purpose of the present utility model is to provide a kind of cooking apparatus for including above-mentioned pan.

To achieve these goals, the embodiment of the utility model first aspect provides a kind of pan, including：Pot is originally Body, the outer surface of the pot body are provided with multiple nano level holes；And plastic insulating cover, it is attached to the outer of the pot body On surface, and embedded the multiple nano level hole.

The pan that the embodiment of the utility model first aspect provides, by the way that (i.e. pot body is by metal material in metal pan base Material be made) outer surface on set up plastic insulating cover so that the pan prepared has the advantages of metal pan and ceramic pan concurrently, neither Easily damaged, durability is preferable, has good heat insulation effect again, and the heat of pan can be directly passed to the water inside pan Or other culinary art food materials spread without past outside, and then save the electric energy in cooking process；And the outer surface of pot body is provided with Multiple nano level holes, plastic insulating cover are embedded in these nanoscale hole holes (can specifically be realized by nanometer moulding process), So that plastic insulating cover is closely linked to form integral structure with metal pan base, so as to improve plastic insulating cover and gold Belong to the bond strength of pot base, and then improve the tolerance and service life of pan, and the metal appearance of pot body can be taken into account Texture, the design of product construction part can also be simplified, make product lighter and thinner, more cost effect.

In addition, the pan in above-described embodiment provided by the utility model can also have following additional technical feature：

In the above-mentioned technical solutions, the internal face of described hole is uneven.

The internal face of hole is substantially serrated, and forms rough irregular shape, increase plastic insulating cover with The bonded area of hole so that plastic insulating cover is difficult to deviate from from hole, so as to further increase plastic insulating cover and gold Belong to the bond strength of pot base, further increase the use reliability of product.

In any of the above-described technical scheme, a diameter of 20nm-40nm of described hole.

Set the diameter of hole to be not less than 20nm, can avoid hole is too small from causing plastic insulating cover to be embedded in metal pan base mistake The shallow situation for causing the two to be difficult to combine closely occurs；Set the diameter of hole to be not more than 40nm, hole can be avoided to cross substantially The too low situation of metal pan base intensity occurs.

In any of the above-described technical scheme, the plastic insulating cover part covers the exterior bottom wall of the pot body, with institute Avoiding hollow groove is formed on the bottom for stating pan, and the temperature sensor or temperature controller for enabling the pan fit with the pot body.

Plastic insulating cover part covers the exterior bottom wall of pot body, and to form avoiding hollow groove in the bottom of pan, i.e. avoiding hollow groove is set Put in the bottom of pan, and run through plastic insulating cover along the thickness direction of plastic insulating cover, this ensure that temperature sensor or Temperature controller can fit with the pot body of metal material, so as to avoid plastic insulating cover poor heat transfer cause temperature sensor or Temperature controller thermometric is inaccurate and influences the temperature control process of pan, ensure that temperature sensor or temperature controller can accurately to measure temperature fast Speed feedback, to carry out accurate temperature controlling.

In the above-mentioned technical solutions, the avoiding hollow groove for circular trough, and its center of circle is the bottom centre of the pan, its A diameter of 5mm-35mm.

Avoiding hollow groove is arranged on to the centre position of pan bottom, and in the range of a diameter of 5mm-35mm, both avoided Dead slot is too small to be caused the inductive probe of temperature sensor or temperature controller to effectively insert wherein and then is close to metal pan body The situation of thermometric occurs, and turn avoid the excessive situation generation for causing pan bottom heat radiation too fast of avoiding hollow groove.Certainly, this area It will be appreciated by the skilled person that the shapes and sizes of temperature sensor or temperature controller are not quite similar, so the shape of avoiding hollow groove, size Above-mentioned occurrence is not limited to position, can be adjusted as needed in actual production.

In any of the above-described technical scheme, the top sides edge of the pot body stretches out to form pot edge, the plastic partition Thermosphere is upwardly extended by the exterior bottom wall of the pot body and covers the pot edge.

Pot bodies top is provided with pot edge, and plastic insulating cover is surrounded to pot edge, the i.e. outer surface of metal pan base substantially upwards Plastic insulating cover (the empty avoiding region for removing bottom) is completely covered with, so as to further reduce pan dispersed heat, enters one Step improves the energy-saving heat preserving effect of pan.

In any of the above-described technical scheme, the region between adjacent described hole is uneven.

In addition to the internal face of hole is uneven, the region between adjacent hole is also uneven, i.e. plastic partition The surface of thermosphere and pot body contacts is uneven, further increases the bonded area of plastic insulating cover and metal pan base, So as to further increase the bond strength of plastic insulating cover and metal pan base, the use reliability of product is further increased.

In any of the above-described technical scheme, the thickness of the pot body is 1.5mm-5mm.

Set the thickness of pot body to be not less than 1.5mm, can avoid pot body is excessively thin from causing pot body easily to be dropped thoroughly by mill The situation of low pan service life occurs；Set the thickness of pot body to be not more than 5mm, can avoid pot body is blocked up from causing to heat The excessively slow situation of speed occurs.

In any of the above-described technical scheme, the thickness of the plastic insulating cover is 0.5mm-1.5mm.

Set the thickness of plastic insulating cover to be not less than 0.5mm, the excessively thin insulation for causing pan of plastic insulating cover can be avoided The still poor situation of effect occurs；Set the thickness of plastic insulating cover to be not more than 1.5mm, the thickness of plastic insulating cover can be avoided Spending greatly, causes the situation that cost is too high or the production cycle is long to occur.

In any of the above-described technical scheme, the pan is interior pot.

When pan is as interior pot, available for cooking apparatus such as electric cooker, electric pressure cooking saucepans.

The embodiment of the utility model second aspect provides a kind of cooking apparatus, including electromagnetic induction coil and such as first Pan described in aspect embodiment, the magnetic line of force of the electromagnetic induction coil passes through the plastic insulating cover of the pan, so that institute State the pot body sensing heating of pan.

The cooking apparatus that the embodiment of the utility model second aspect provides, its interior pot are as described in first aspect embodiment Pan, thus possess all beneficial effects possessed by any one of above-described embodiment, will not be repeated here；Further, since The hole of pot body surface is nano level, can't so cause the concave point and salient point and electromagnetic induction coil of pot body surface Spacing differ, and then avoid the local uneven of heating.

In the above-mentioned technical solutions, the cooking apparatus is electric cooker or electric pressure cooking saucepan.

The embodiment of the utility model third aspect provides a kind of preparation method of pan, for preparing such as first aspect Pan any one of embodiment, including：Step S10：The pot body of the pan is prepared using metal material；Step S20：Plastic insulating cover is prepared in the outer surface of the pot body using nanometer moulding process.

The preparation method for the pan that the embodiment of the utility model first aspect provides, first prepares pan using metal material Pot body, then using NMT (Nano Molding Technology, nanometer forming technique) method pot body appearance Plastic insulating cover is prepared on face so that the pan prepared is neither easy breakage, and durability is preferable, again there is good insulation to imitate Fruit, the heat of pan can be directly passed to water inside pan or other culinary art food materials without toward outside diffusion, and then save Electric energy in cooking process；And use nanometer forming technique so that plastic insulating cover and metal pan base are closely linked shape Integrated structure, so as to improve the bond strength of plastic insulating cover and metal pan base, and then improve the tolerance of pan And service life, and the metal appearance texture of pot body can be taken into account, the design of product construction part can also be simplified, make product lighter It is thinner, more cost effect.

In addition, the preparation method of the pan in above-described embodiment provided by the utility model can also have additional skill as follows Art feature：

In the above-mentioned technical solutions, in the step S20, the plastic insulating cover part covers the outer of the pot body Bottom wall, to form avoiding hollow groove in the bottom of the pan, enable the temperature sensor or temperature controller and the pot of the pan Body fits.

Plastic insulating cover part covers the exterior bottom wall of pot body, and to form avoiding hollow groove in the bottom of pan, i.e. avoiding hollow groove is set Put in the bottom of pan, and run through plastic insulating cover along the thickness direction of plastic insulating cover, this ensure that temperature sensor or The inductive probe of temperature controller can fit with the pot body of metal material, cause temperature so as to avoid plastic insulating cover poor heat transfer Degree sensor or temperature controller thermometric are forbidden and influence the temperature control process of pan, ensure that temperature sensor can accurately measure temperature Rapid feedback, to carry out accurate temperature controlling.

In the above-mentioned technical solutions, it is preferable that the avoiding hollow groove is circular trough, and its center of circle is in the bottom of the pan The heart, its a diameter of 5mm-35mm.

In any of the above-described technical scheme, in the step S10, using Sheet Metal Forming Technology, the pot is prepared with metallic plate The pot body of tool.

Using Sheet Metal Forming Technology, the pot body of pan is prepared with metallic plate, i.e., punch forming directly is carried out to metallic plate, obtained Stamping parts, as pan pot body, the in light weight of stamping parts, thickness of thin, good, the steady quality of rigidity, and productivity is good, It is adapted to produce in enormous quantities, cost is low.Certainly, it will be understood by those of skill in the art that casting or other modes can also be used , all should be in the scope of protection of the utility model to prepare the pot body of pan.

In any of the above-described technical scheme, the metallic plate is the composite plate that aluminium sheet, stainless steel plate or outer layer are stainless steel.

Metallic plate is the composite plate that aluminium sheet, stainless steel plate or outer layer are stainless steel, accordingly, obtained pan be aluminum pot, Stainless-steel pan or compound pot, thermal conductivity is good, intensity is high, good appearance, materials are easy, and health environment-friendly, at high temperature will not Discharge harmful material.It is of course also possible to use the metallic plates of other materials prepares pan.Specifically, outer layer is The composite plate of stainless steel, generally stainless steel/aluminum composite plate or stainless steel/copper/aluminum composite plate, and stainless steel layer is outer layer.

In any of the above-described technical scheme, the step S20 is specifically included：Step S202：To the surface of the pot body Pre-treatment is carried out, the surface of the pot body is produced multiple nano level holes；Step S204：Will using injection molding technique Heatpiston's direct injection forms the plastic insulating cover on the outer surface of the pot body.

Pre-treatment first is carried out to the surface of pot body, the surface of pan pot body is formed a large amount of nano level holes, so Heatpiston directly projects afterwards, enters nano level hole by being molded, is combined with reaching metal with the microphysics of plastics, is tied It is strong with joint efforts, plastic insulating cover is formed after heatpiston solidifies, i.e. plastic insulating cover can be molded directly within the pot of metal material Have pot body surface, simplify technique, and improve the bond strength of the two.

It can be T processing as specific pre-treating technology, or the technology such as E processing, HK processing, TRI processing. Wherein, T handling process production efficiency is high, is adapted to stainless steel, aluminium alloy and MIM (Metal Injection Molding, metal Injection moulding), it is adapted to complex structural member；E handling process production efficiencys are higher, and bond strength is high, are adapted to complex structural member, are adapted to Aluminium and die casting aluminium are extruded, timeliness is up to more than January；HK processing has superpower adhesion, and processing procedure is easily controlled, process safety ring Protect, plastics selection variation, the anodic oxidation of metallo-plastic combination is stable, is adapted to section bar aluminium, die casting aluminium, timeliness more than one week； TRI processing bond strengths are high, are adapted to complex structural member, and timeliness is up to more than January, and the chemicals used is less.It is so actual , should be according to the suitable pre-treating technology of the selections such as the concrete shape of product, material, performance requirement in production process.

In any of the above-described technical scheme, the step S202 is specifically included：Step S2024：The pot body is put into Soaked in acid solution, the surface of the pot body is produced multiple nano level holes.

In the above-mentioned technical solutions, the step 202 specifically also includes：Step S2022：The pot body is put into alkali lye Middle immersion；Wherein, in the step S2024, the pot body for soaking alkali lye is put into acid solution and soaked.

In the above-mentioned technical solutions, the step 202 specifically also includes：Step S2026：The pot of acid solution will be soaked Body, which is put into T liquid, to be soaked.

In the above-mentioned technical solutions, the step 202 specifically also includes：Step S2028：T liquid is crossed with pure water cleaning and dipping The pot body, and dry.

In above-mentioned technical proposal, nano level hole is prepared on the surface of pot body using T handling process, the technique compared with It is adapted to aluminum pot, stainless-steel pan or compound pot, and production efficiency is high, suitable for batch production.Specifically, the pot body of pan is being obtained Afterwards, first pot body is put into alkali lye, soaks certain time, remove the grease of metal pan body surface；Then pot body Take out, be put into acid solution from alkali lye, on the one hand neutralize the alkaline matter on pot body, on the other hand carved in pot body surface Lose nano level hole；Then pot body is taken out from acid solution, is put into immersion in T liquid and carries out reaming, in the base of nano-pore Re-form the bigger etch pit in aperture on plinth, and nanometer mating substance formed in hole, be easy to plastics to inject filling, and with gold Category pot body is closely linked, and produces ship anchor such as and is thrown into the effect of hitching post ground in water, i.e. crab-bolt effect；Finally pot sheet Body takes out from T liquid, is put into pure water cleaning, is dried after cleaning, injection molding is carried out again after drying, in order to plastics and gold Stable reaction between category.

Therefore, in above-mentioned steps, for metal pan base after overpickling (i.e. step S2024), its surface forms multiple receive The hole of meter level, you can heatpiston is molded on metal pan base to prepare plastic insulating cover；And alkali cleaning (the i.e. step before pickling S2022) it is the formation of nano aperture when being easy to pickling in order to remove the greasy dirt on metal pan base surface；T liquid immersion after pickling (i.e. step S2026) is for reaming, i.e., the bigger etch pit in aperture, and the shape in hole are re-formed on the basis of nano-pore Into nanometer mating substance, inject and fill in order to plastics；Cleaning-drying (i.e. step S2028) after the immersion of T liquid is to clean Fall other chemical substances, be easy to chemically react between modeling heatpiston and nanometer mating substance；So alkali cleaning, the immersion of T liquid The step of being not required with cleaning-drying, simply further optimize the effect of pre-treating technology.

What deserves to be explained is alkali lye here, refers to the solution in alkalescence, not necessarily the alkali such as NaOH, KOH is molten Liquid.

In any of the above-described technical scheme, in the step S2022, the alkali lye is 1wt%-1.5wt% hydrogen-oxygen Change sodium solution, 10wt%-20wt% sodium silicate solution, 10wt%-20wt% sodium radio-phosphate,P-32 solution and 10wt%-20wt% One kind in sodium carbonate liquor；Wherein, soak time 1.5min-2min, the temperature of the alkali lye is 35 DEG C -45 DEG C.

In the technical scheme, four kinds of alkali lye can play effective cleaning action to pan, remove the oil on pan surface The impurity such as dirt, it is easy to uniformly etch substantial amounts of nanoscale hole hole on the surface of pot body in follow-up acid cleaning process.It is appreciated that , NaOH alkalescence is relatively strong, so its concentration is relatively low；And sodium silicate solution, sodium radio-phosphate,P-32 solution and sodium carbonate are molten Liquid it is alkaline relatively weak, so its concentration is of a relatively high.Certainly, due to different pans, its material is not quite similar, and contains Grease amount and species be not quite similar, so alkali lye is not limited to above-mentioned four kinds, and its concentration is also not limited to above-mentioned tool Body value, it can be adjusted as needed in actual production process.

Soak time in alkali lye is 1.5min-2min, both ensure that the grease on pan pot body can be fully It is dissolved in alkali lye, reaches the purpose of degreasing, turn avoid long soaking time and influence the production cycle of product；The temperature of alkali lye Spend and for 35-45 DEG C, ensure that the saponification between alkali lye and grease has higher reaction rate, so as to improve grease The speed and efficiency removed, be advantageous to cost-effective, the shortening production cycle.Certainly, different alkali lye, its composition are not quite similar, therefore And soak time and temperature are not limited to above-mentioned occurrence, can be adjusted as needed in actual production process.

In any of the above-described technical scheme, in the step S2024, the acid solution is 1.5wt%-2wt% nitric acid One kind in the sulfuric acid solution of solution, 1.5wt%-2wt% hydrochloric acid solution and 1wt%-1.5wt%；Wherein, soak time is 1.5min-3min, the temperature of the acid solution is 35 DEG C -45 DEG C.

In the technical scheme, three kinds of acid solutions can play appropriate corrosiveness to metal pan body, not interfere with To pan pot body overall structure on the premise of, a pot body surface is formed substantial amounts of nano level hole, so as to both ensure The quality of pot body, in turn ensure that the smooth preparation of follow-up plastic insulating cover；And salpeter solution, hydrochloric acid solution and sulfuric acid solution It is acid relatively strong for most common three strong acid, the formation speed and quality of nanoscale hole hole, while appearance of drawing materials has been effectively ensured Easily, directly can on the market buy, then be diluted to required concentration as requested, it is very convenient, be advantageous to save into This.

Soak time in acid solution is 1.5min-3min, both ensure that acid solution can carve on pan pot body surface Lose substantial amounts of nanoscale hole hole, the situation that turn avoid long soaking time and make pot body construction be badly damaged occurs；Acid The temperature of liquid is 35 DEG C -45 DEG C, ensure that the activity of acid solution, can between acid solution and the metal of pot body surface so as to ensure that Highly effective reaction, and then the synthesis speed of nanoscale hole hole is ensure that, be advantageous to shorten the production cycle.Specifically, it is molten for nitric acid Liquid, its soak time are preferably 2-3min；For hydrochloric acid solution, its soak time is preferably 2-3min；For sulfuric acid solution, its Soak time is preferably 1.5-2.5min.Certainly, different acid solution, its composition are not quite similar, so soak time and temperature are not Above-mentioned occurrence is confined to, can be adjusted as needed in actual production process.

In any of the above-described technical scheme, in the step S2026, the formula of the T liquid is：Mass fraction is 37% Hydrochloric acid solution account for 20wt%-50wt%, ammonium chloride accounts for 10wt%-20wt%, remaining is pure water；Or, mass fraction is 85% Phosphoric acid solution account for 80wt%-85wt%, ammonium chloride accounts for 5wt%-10wt%, remaining is pure water；Or, sodium hydroxide accounts for 10wt%-20wt%, ammonium chloride account for 5wt%-10wt%, and remaining is pure water；Or, the hydrochloric acid solution that mass fraction is 37% The glacial acetic acid that salpeter solution 190g/L-210g/L that 180g/L-230g/L, mass fraction are 65%, mass fraction are 98% is molten Liquid 10g/L-30g/L, hydrofluoric acid solution 180g/L-220g/L, the disodium hydrogen phosphate 10g/L- that mass fraction is 40% 12g/L, ammonium chloride 20g/L-50g/L, remaining is pure water；Or, the hydrochloric acid solution 550ml/L-600ml/ that mass fraction is 37% L, the salpeter solution 70ml/L-90ml/L, nickel chloride 8g/L-10g/L, ferric trichloride 300g/L-350g/ that mass fraction is 65% L, ammonium chloride 10g/L-30g/L, remaining is pure water；Wherein, soak time 25min-35min, temperature are 25 DEG C -60 DEG C.

In the technical scheme, the T liquid of five kinds of formulas, each composition comprehensive function in every kind of formula, it is thus possible to pot sheet The nanoscale hole hole in body surface face carries out effective reaming, re-forms the bigger etch pit in aperture on the basis of nano-pore, and One layer of fat propylhomoserin film is formed in hole, when heatpiston injects, is swapped simultaneously by the chemical reaction of high pressure and fat and amine Fusion, fills up nano aperture, the pot body of metal material is closely linked with plastic insulating cover, produce effective crab-bolt Effect, therefore the bond strength of pot body and plastic insulating cover has been effectively ensured.

What deserves to be explained is although above-mentioned five kinds of formulas can reach reaming effect, due to its material of different pans Matter is not quite similar, so the chemical reaction that reaming occurs is different, so to select suitable T liquid for specific material Reaming is carried out, the maximum of interests in the case where having considered the factors such as complexity, time, financial cost, could be realized Change.Because the application is molded in the outer layer of metal pan body, therefore the object that is directed to of reaming is mainly the appearance of pot body Face, and the outer surface of aluminum pot pot body is aluminium, the outer surface of stainless-steel pan and compound pot are stainless steel, the technical staff of our company Drawn after test of many times and analysis, aluminum pot preferably uses any of formula, and stainless-steel pan and compound pot in first three Then preferably using any of latter two formula.

Soak time in T liquid is 25min-35min, both ensure that T liquid energies enough played effective reaming effect, and protect Demonstrate,prove to be substantially all in the nanoscale hole hole of pot body surface and can form fat propylhomoserin film, to ensure each position of pot body Plastic insulating cover with metal pan body strong bonded；Turn avoid long soaking time causes hole excessive or production cycle mistake Long situation occurs；The temperature of T liquid is 25-60 DEG C, then ensure that the activity of T liquid, and then ensure that the items chemistry in T liquid is anti- Should be able to efficiently it carry out.

Certainly, because different T liquid, its composition are not quite similar, so soaking temperature and soak time be not limited to it is above-mentioned Occurrence, it can be adjusted as needed in actual production process.The technical staff of our company is by test of many times and divides Found after analysis：For the T liquid of the first formula, its temperature is preferably 40-50 DEG C；It is excellent for the T liquid of second of formula, its temperature Elect 40-60 DEG C as；For the T liquid being formulated in the 3rd, its temperature is preferably 35-50 DEG C；For the T liquid of the 4th kind of formula, its temperature Degree is preferably 30-50 DEG C；For the T liquid of the 5th kind of formula, its temperature is preferably 25-60 DEG C.

What deserves to be explained is in the application, the hydrochloric acid solution that mass fraction is 37% is commercially available concentrated hydrochloric acid, and quality is divided Number is commercially available concentrated nitric acid (HNO for 65% salpeter solution₃Mass fraction be about 65%), mass fraction be 85% phosphorus Acid solution is commercially available to contain 85%H₃PO₄Thick concentrated solution, mass fraction be 98% glacial acetic acid solution be commercially available Quality of acetic acid fraction is 98% glacial acetic acid, and the hydrofluoric acid that mass fraction is 40% is commercially available hydrofluoric acid solution.

In any of the above-described technical scheme, in the step S2028, drying temperature is 80 DEG C -120 DEG C, drying time For 5min-10min.

Drying temperature is 80-120 DEG C, and both ensure that the moisture of pot body surface can quickly volatilize, and turn avoid temperature It is too high to cause to waste excessive energy consumption；Drying time is 5min-10min, both ensure that the moisture of pot body surface and can fully wave Hair, turn avoid overlong time, be advantageous to shorten the production cycle.Certainly, drying temperature and drying time are not limited to above-mentioned tool Body value, it can be adjusted as needed in actual production process.

In any of the above-described technical scheme, in the step S204, the heatpiston is PBT, mold temperature 140 DEG C -160 DEG C, injection speed 50mm/s-80mm/s, the thickness of the plastic insulating cover is 0.5mm-1.5mm.

PBT (Polybutylene terephthalate, polybutylene terephthalate (PBT)) material has intensity high, resistance to Fatigability is good, dimensionally stable, small creep the advantages that, also seldom change under the high temperature conditions, and heat-resistant aging is excellent, it is resistance to molten Agent is good, and water stability is high, and electrical insulating property is good；In addition, molding processibility is good, and because crystallization rate is fast, good fluidity, mould Temperature also requires low than Other Engineering plastics.Certainly, the material of heatpiston is not limited to above-mentioned PBT, or PPS Plastics such as (Polyphenylene sulfide, polyphenylene sulfides), it is not another herein as long as there is good effect of heat insulation One enumerates, because these technical schemes can realize the purpose of this utility model, and without departing from design of the present utility model Thought and objective, thus all should be in the scope of protection of the utility model.

Internal performance and apparent mass influence of the mold temperature on product is very big, and the height of mold temperature is decided by plastics knot The presence or absence of crystalline substance, the size of product and properity requirement, and other technological temperature (melt temperature, injection speed and injections Pressure, moulding cyclc etc.), therefore, select suitable mold temperature extremely important；And injection speed affect mold temperature, into It is type cycle etc., also extremely important.Those skilled in the art after test of many times and analysis by having found, mold temperature is in 140- In the range of 160 DEG C, injection speed is when in the range of 50-80mm/s, obtained plastic insulating cover better performances, and apparent matter Amount is good.Certainly, for different heatpistons, above-mentioned parameter should be adjusted as needed in actual production process, to protect Demonstrate,prove the quality of obtained product.

In any of the above-described technical scheme, after the step S20, in addition to：Step S30：There is the modeling to preparation Expect that the pot body of thermal insulation layer carries out destressing processing.

In the above-mentioned technical solutions, it is preferable that in the step S30, by the way of baking, have the modeling to preparation Expect that the pot body of thermal insulation layer carries out destressing processing；Wherein, in the 2h-3h after the plastic insulating cover is formed, to the pot Body is toasted, and baking temperature is 150 DEG C -180 DEG C, baking time 1h-2h.

After the completion of injection, destressing processing is carried out to pan can effectively decrease or even eliminate metal pan body and plastics The stress of remaining inside thermal insulation layer so that the structure inside pan is more uniform, the combination of metal pan body and plastic insulating cover Also it is even closer, so as to further increase the overall quality of pan.

By the way of baking, the stress of metal pan body interior can either be decreased or even eliminated, can also be reduced even The stress inside plastic insulating cover is eliminated, thus takes destressing processing to decrease or even eliminate inside whole pan Stress, so as to shorten the production cycle, production cost is reduced, and be easy to industrialized mass production.

And the technical staff of our company has found by test of many times and after analyzing, in the 2h-3h after the completion of injection, to pot Tool carries out baking processing, best to the removal effect of the stress inside pan；Baking temperature is arranged on to 150-180 DEG C of scope It is interior, the stress that can effectively eliminate inside metal pan body and plastic insulating cover had both been ensure that, turn avoid that temperature is too high to be caused The generation for situations such as plastic insulating cover softens or gone bad, so as to ensure that the use reliability of pan；Baking time is arranged on In the range of 1-2h, the time that both ensure that the stress in pan has abundance eliminates, and turn avoid and wastes excessive energy consumption.

Certainly, it will be understood by those of skill in the art that different pans, its material is not quite similar, thus baking temperature Above-mentioned occurrence is not limited to baking time, can be adjusted as needed in actual production process.

Utility model utility model utility model utility model additional aspect and advantage of the present utility model are by following Become obvious in description section, or recognized by practice of the present utility model.

Brief description of the drawings

Of the present utility model above-mentioned and/or additional aspect and advantage will in the description from combination accompanying drawings below to embodiment Become obvious and be readily appreciated that, wherein：

Fig. 1 is the cross section structure diagram of the pan described in the utility model some embodiments；

Fig. 2 is the mplifying structure schematic diagram in A portions in Fig. 1；

Fig. 3 is the partial structural diagram of the pan described in the utility model some embodiments；

Fig. 4 is the schematic flow sheet of the preparation method of the pan described in the utility model one embodiment；

Fig. 5 is the schematic flow sheet of the preparation method of the pan described in the utility model another embodiment；

Fig. 6 is the schematic flow sheet of the preparation method of the pan described in the utility model another embodiment.

Wherein, corresponding relations of the Fig. 1 into Fig. 3 between reference and component names is：

10 pots of bodies, 20 plastic insulating covers, 30 avoiding hollow grooves.

Embodiment

In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool The utility model is further described in detail body embodiment.It should be noted that in the case where not conflicting, this Shen The feature in embodiment and embodiment please can be mutually combined.

Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality New to be different from other modes described here using other to implement, therefore, the scope of protection of the utility model is simultaneously Do not limited by following public specific embodiment.

Referring to Fig. 1 to Fig. 6 descriptions according to pan described in the utility model some embodiments and preparation method thereof and Cooking apparatus.

As shown in Figure 1 to Figure 3, the pan that the embodiment of the utility model first aspect provides, including pot body 10 and modeling Expect thermal insulation layer 20.

Specifically, pot body 10 is made up of metal material, and the outer surface of pot body 10 is provided with multiple nano level holes； Plastic insulating cover 20 is attached on the outer surface of pot body 10, and embedded multiple nano level holes, as shown in Figure 3.

The pan that the embodiment of the utility model first aspect provides, passes through the appearance in metal pan base (i.e. pot body 10) Plastic insulating cover 20 is set up on face so that the pan prepared has the advantages of metal pan and ceramic pan concurrently, is neither easy breakage, resistance to It is preferable with property, there is good heat insulation effect again, the heat of pan can be directly passed to water or other culinary arts inside pan Food materials save the electric energy in cooking process without being spread toward outside；And the outer surface of pot body 10 is provided with multiple nanometers The hole of level, plastic insulating cover 20 are embedded in these nanoscale hole holes (can specifically be realized by nanometer moulding process) so that modeling Material thermal insulation layer 20 is closely linked to form integral structure with metal pan base, so as to improve plastic insulating cover 20 and metal The bond strength of pot base, and then the tolerance and service life of pan are improved, and the metal appearance of pot body 10 can be taken into account Texture, the design of product construction part can also be simplified, make product lighter and thinner, more cost effect.

Further, the internal face of hole is uneven, as shown in Figure 3.

Further, the region between adjacent hole is uneven, as shown in Figure 3.

Preferably, a diameter of 20nm-40nm of hole.

The internal face of hole is uneven, then plastic insulating cover 20 is difficult to deviate from from hole, so as to further increase The bond strength of plastic insulating cover 20 and metal pan base, further increase the use reliability of product.

Similarly, in addition to the internal face of hole is uneven, the region between adjacent hole is also uneven, that is, moulds Expect that the surface of thermal insulation layer and pot body contacts is uneven, further increase the faying face of plastic insulating cover and metal pan base Product, so as to further increase the bond strength of plastic insulating cover and metal pan base, the use for further increasing product is reliable Property.

In any of the above-described embodiment, the exterior bottom wall of the part of plastic insulating cover 20 covering pot body 10, with the bottom of pan Portion forms avoiding hollow groove, and the temperature sensor or temperature controller for enabling pan fit with pot body.

Preferably, avoiding hollow groove 30 for circular trough, and its center of circle is the bottom centre of pan, its a diameter of 5mm-35mm, As shown in Figure 2.

The exterior bottom wall of the part of plastic insulating cover 20 covering pot body 10, to form avoiding hollow groove, i.e. empty avoiding in the bottom of pan Groove 30 is arranged on the bottom of pan, and runs through plastic insulating cover 20 along the thickness direction of plastic insulating cover 20, this ensure that warm Degree sensor or temperature controller can fit with the pot body 10 of metal material, be led so as to avoid the poor heat transfer of plastic insulating cover 20 Cause temperature sensor or temperature controller thermometric to be forbidden and influence the temperature control process of pan, ensure that temperature sensor or temperature controller can Temperature rapid feedback accurately is measured, to carry out accurate temperature controlling.

Avoiding hollow groove 30 is arranged on to the centre position of pan bottom, and a diameter of 5mm-35mm (such as 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm etc.) in the range of, both avoided the too small sense for causing temperature sensor or temperature controller of avoiding hollow groove 30 Should pop one's head in can not effectively insert wherein and then be close to the situation generation of the thermometric of metal pan body 10, turn avoid the mistake of avoiding hollow groove 30 It is big to cause the too fast situation of pan bottom heat radiation to occur.Certainly, it will be understood by those of skill in the art that temperature sensor or temperature The shapes and sizes of control device are not quite similar, so the shape of avoiding hollow groove 30, size and position are not limited to above-mentioned occurrence, in reality It can be adjusted as needed in the production of border.

In any of the above-described embodiment, the top sides of pot body 10 along stretching out to form pot edge, plastic insulating cover 20 by The exterior bottom wall of pot body upwardly extends and covers pot edge, as shown in Figure 1.

The top of pot body 10 is provided with pot edge, and plastic insulating cover 20 surrounds to the outer surface base of pot edge, i.e. metal pan base upwards Plastic insulating cover 20 (the empty avoiding region for removing bottom) is completely covered with sheet, so as to further reduce the lost heat of pan Amount, further increase the energy-saving heat preserving effect of pan.

In any of the above-described embodiment, the thickness of pot body 10 is 1.5mm-5mm.

Set the thickness of pot body 10 to be not less than 1.5mm, can avoid pot body 10 is excessively thin from causing pot body 10 easily to be ground The situation for reducing pan service life thoroughly occurs；Set the thickness of pot body 10 to be not more than 5mm, the mistake of pot body 10 can be avoided Thickness causes the excessively slow situation of firing rate to occur.

In any of the above-described embodiment, the thickness of plastic insulating cover 20 is 0.5mm-1.5mm.

Set the thickness of plastic insulating cover 20 to be not less than 0.5mm, the excessively thin pan that causes of plastic insulating cover 20 can be avoided The still poor situation of heat insulation effect occurs；Set the thickness of plastic insulating cover 20 to be not more than 1.5mm, plastics can be avoided heat-insulated The thickness of layer 20 is excessive, causes the situation that cost is too high or the production cycle is long to occur.

In any of the above-described embodiment, pan is interior pot.

The cooking apparatus that the embodiment of the utility model second aspect provides, including electromagnetic induction coil and such as first party The pan of face embodiment, the magnetic line of force of electromagnetic induction coil pass through the plastic insulating cover of pan, so that the pot body sensing of pan Heating.

The cooking apparatus that the embodiment of the utility model second aspect provides, its interior pot are the pot such as first aspect embodiment Tool, thus possess all beneficial effects possessed by any one of above-described embodiment, it will not be repeated here；Further, since pot sheet The hole in body surface face is nano level, between the concave point and salient point and electromagnetic induction coil that can't so cause pot body surface Away from differing, and then avoid the local uneven of heating.

In the above-mentioned technical solutions, cooking apparatus is electric cooker or electric pressure cooking saucepan.

As shown in Figures 4 to 6, the preparation method for the pan that the embodiment of the utility model first aspect provides, including：

Step S10：The pot body 10 of pan is prepared using metal material；

Step S20：Plastic insulating cover 20 is prepared in the outer surface of pot body 10 using nanometer moulding process.

The preparation method for the pan that the embodiment of the utility model first aspect provides, first prepares pan using metal material Pot body 10, then using NMT (Nano Molding Technology, nanometer forming technique) method in pot body 10 Plastic insulating cover 20 is prepared on outer surface so that the pan prepared is neither easy breakage, and durability is preferable, has again well Heat insulation effect, the heat of pan can be directly passed to water or the not past outside diffusion of culinary art food materials two inside pan, Jin Erjie Electric energy about in cooking process；And use nanometer forming technique so that plastic insulating cover 20 is combined closely one with metal pan base Rise and form integral structure, so as to improve the bond strength of plastic insulating cover 20 and metal pan base, and then improve pan Tolerance and service life, and the metal appearance texture of pot body 10 can be taken into account, the design of product construction part can also be simplified, allowed Product is lighter and thinner, more cost effect.

Further, in step S20, the exterior bottom wall of the part of plastic insulating cover 20 covering pot body 10, with pan Avoiding hollow groove is formed on bottom, and the temperature sensor or temperature controller for enabling pan fit with pot body.

Preferably, avoiding hollow groove 30 is circular trough, and its center of circle is the bottom centre of pan, its a diameter of 5mm-35mm (ratio Such as 5mm, 10mm, 20mm, 35mm).

The exterior bottom wall of the part of plastic insulating cover 20 covering pot body 10, to form avoiding hollow groove, i.e. empty avoiding in the bottom of pan Groove 30 is arranged on the bottom of pan, and runs through plastic insulating cover 20 along the thickness direction of plastic insulating cover 20, such as Fig. 1 and Fig. 2 institutes Show, this ensure that the inductive probe of temperature sensor or temperature controller can fit with the pot body 10 of metal material, so as to Avoiding the poor heat transfer of plastic insulating cover 20 causes temperature sensor or temperature controller thermometric to be forbidden and influence the temperature control process of pan, protects Temperature rapid feedback can accurately be measured by having demonstrate,proved temperature sensor, to carry out accurate temperature controlling.

Avoiding hollow groove 30 is arranged on to the centre position of pan bottom, and in the range of a diameter of 5mm-35mm, both avoided Avoiding hollow groove 30 is too small to be caused the inductive probe of temperature sensor or temperature controller to effectively insert wherein and then is close to metal pan The situation of the thermometric of body 10 occurs, and turn avoid the excessive situation generation for causing pan bottom heat radiation too fast of avoiding hollow groove 30.Certainly, It will be understood by those of skill in the art that the shapes and sizes of temperature sensor or temperature controller are not quite similar, so avoiding hollow groove 30 Shape, size and position be not limited to above-mentioned occurrence, can be adjusted as needed in actual production.

In some embodiments of the utility model, in step slo, using Sheet Metal Forming Technology, pan is prepared with metallic plate Pot body 10.

Alternatively, metallic plate is the composite plate that aluminium sheet, stainless steel plate or outer layer are stainless steel.

Using Sheet Metal Forming Technology, the pot body 10 of pan is prepared with metallic plate, i.e., punch forming directly is carried out to metallic plate, obtained The pot body 10 of the stamping parts arrived, as pan, the in light weight of stamping parts, thickness of thin, good, the steady quality of rigidity, and productivity Well, it is adapted to produce in enormous quantities, cost is low.Certainly, it will be understood by those of skill in the art that can also use casting or other Mode prepares the pot body 10 of pan, all should be in the scope of protection of the utility model.

In one embodiment of the present utility model, further, as shown in figure 5, step S20 is specifically included：

Step S202：Pre-treatment is carried out to the surface of pot body 10, makes the surface generation of pot body 10 multiple nano level Hole；

Step S204：Using injection molding technique by heatpiston's direct injection on the outer surface of pot body 10, Form plastic insulating cover 20.

Pre-treatment first is carried out to the surface of pot body 10, the surface of pan pot body 10 is formed a large amount of nano level holes Hole, then heatpiston directly project, by be molded enter nano level hole, to reach the microphysics knot of metal and plastics Close, adhesion is strong, forms plastic insulating cover 20 after heatpiston solidifies, i.e. plastic insulating cover 20 can be molded directly within metal The surface of pan pot body 10 of material, simplifies technique, and improve the bond strength of the two.

In another embodiment of the present utility model, further, as shown in fig. 6, step S202 is specifically included：

Step S2022：Pot body 10 is put into alkali lye and soaked；

Step S2024：The pot body 10 for soaking alkali lye is put into acid solution and soaked；

Step S2026：The pot body 10 for soaking acid solution is put into T liquid and soaked；

Step S2028：The pot body 10 of T liquid is crossed with pure water cleaning and dipping, and is dried.

In above-described embodiment, nano level hole is prepared on the surface of pot body 10 using T handling process, the technique compared with It is adapted to aluminum pot, stainless-steel pan or compound pot, and production efficiency is high, suitable for batch production.Specifically, the pot body of pan is being obtained After 10, first pot body 10 is put into alkali lye, soaks certain time, the grease in the surface of metal pan body 10；Then Pot body 10 takes out from alkali lye, is put into acid solution, the alkaline matter on pot body 10 is on the one hand neutralized, on the other hand in pot The surface etch of body 10 goes out nano level hole；Then pot body 10 is taken out from acid solution, is put into immersion in T liquid and is expanded Hole, the bigger etch pit in aperture is re-formed on the basis of nano-pore, and nanometer mating substance is formed in hole, be easy to plastics Filling is injected, and is closely linked with metal pan body 10, ship anchor such as is produced and is thrown into the effect of hitching post ground in water, i.e. anchor Bolt effect；Finally pot body 10 is taken out from T liquid, pure water cleaning is put into, is dried after cleaning, is molded again after drying Shaping, in order to stable reaction between plastics and metal.After pre-treating technology, the surface roughness of pot body is the μ of Ra 2 M-5 μm, be advantageous to the good combination between heatpiston and pot body.

It is understood that in above-mentioned steps, after overpickling (i.e. step S2024), its surface is formed metal pan base Multiple nano level holes, you can heatpiston is molded on metal pan base to prepare plastic insulating cover；And the alkali before pickling Wash (i.e. step S2022) and be to remove the greasy dirt on metal pan base surface, the formation of nano aperture when being easy to pickling；After pickling T liquid immersion (i.e. step S2026) is for reaming, i.e., re-forms the bigger etch pit in aperture on the basis of nano-pore, and Nanometer mating substance is formed in hole, injects and fills in order to plastics；T liquid immersion after cleaning-drying (i.e. step S2028) be In order to wash other chemical substances, it is easy to chemically react between modeling heatpiston and nanometer mating substance；So alkali Wash, the immersion of T liquid and cleaning-drying the step of being not required, simply the further effect of optimization pre-treating technology.

Wherein, in step S2022, alkali lye is 1wt%-1.5wt% sodium hydroxide solution (the i.e. quality of sodium hydroxide Fraction is 1%-1.5%, such as 1wt%, 1.2wt%, 1.5wt%), 10wt%-20wt% sodium silicate solution (such as 10wt%, 15wt%, 20wt% etc.), 10wt%-20wt% sodium radio-phosphate,P-32 solution (such as 10wt%, 15wt%, 20wt%) and 10wt%- One kind in 20wt% sodium carbonate liquor (such as 10wt%, 15wt%, 20wt%).

Preferably, in step S2022, soak time is 1.5min-2min (such as 1.5min, 1.8min, 2min etc.), The temperature of alkali lye is 35 DEG C -45 DEG C (such as 35 DEG C, 40 DEG C, 45 DEG C etc.).

In the technical scheme, four kinds of alkali lye can play effective cleaning action to pan, remove the oil on pan surface The impurity such as dirt, it is easy to uniformly etch substantial amounts of nanoscale hole hole on the surface of pot body 10 in follow-up acid cleaning process.It can manage Solution, NaOH alkalescence is relatively strong, so its concentration is relatively low；And sodium silicate solution, sodium radio-phosphate,P-32 solution and sodium carbonate Solution it is alkaline relatively weak, so its concentration is of a relatively high.Certainly, due to different pans, its material is not quite similar, and contains The amount and species of some greases are not quite similar, so alkali lye is not limited to above-mentioned four kinds, and its concentration be also not limited to it is above-mentioned Occurrence, it can be adjusted as needed in actual production process.

Soak time in alkali lye is 1.5min-2min, both ensure that the grease on pan pot body 10 can be abundant Ground is dissolved in alkali lye, reaches the purpose of degreasing, be turn avoid long soaking time and is influenceed the production cycle of product；Alkali lye Temperature is 35-45 DEG C, ensure that the saponification between alkali lye and grease has higher reaction rate, so as to improve grease The speed and efficiency of removal, be advantageous to cost-effective, the shortening production cycle.Certainly, different alkali lye, its composition are not quite similar, So soak time and temperature are not limited to above-mentioned occurrence, can be adjusted as needed in actual production process.

Wherein, in step S2024, acid solution be 1.5wt%-2wt% salpeter solution (such as 1.5wt%, 1.8wt%, 2.0wt% etc.), 1.5wt%-2wt% hydrochloric acid solution (such as 1.5wt%, 1.8wt%, 2.0wt%) and 1wt%- One kind in 1.5wt% sulfuric acid solution (such as 1wt%, 1.2wt%, 1.5wt%).

Preferably, in step S2024, soak time be 1.5min-3min (such as 1.5min, 2min, 2.5min, 3min etc.), the temperature of acid solution is 35 DEG C -45 DEG C (such as 35 DEG C, 40 DEG C, 45 DEG C etc.).

In the technical scheme, three kinds of acid solutions can play appropriate corrosiveness to metal pan body 10, will not shadow On the premise of ringing the overall structure for arriving pan pot body 10, the surface of pot body 10 is set to form substantial amounts of nano level hole, so as to Both the quality of pot body 10 had been ensure that, in turn ensure that the smooth preparation of follow-up plastic insulating cover 20；And salpeter solution, hydrochloric acid solution It is most common three strong acid with sulfuric acid solution, it is acid relatively strong, the formation speed and quality of nanoscale hole hole has been effectively ensured, It is easy to draw materials simultaneously, directly can on the market buy, then be diluted to required concentration as requested, very convenient, has Beneficial to cost-effective.

Soak time in acid solution is 1.5min-3min, both ensure that acid solution can be on the surface of pan pot body 10 Substantial amounts of nanoscale hole hole is etched, the situation hair that turn avoid long soaking time and make the structure of pot body 10 be badly damaged It is raw；The temperature of acid solution is 35 DEG C -45 DEG C, the activity of acid solution is ensure that, so as to ensure that the metal of acid solution and the surface of pot body 10 Between can highly effective reaction, and then ensure that the synthesis speed of nanoscale hole hole, be advantageous to shorten the production cycle.Specifically, it is right In salpeter solution, its soak time is preferably 2-3min；For hydrochloric acid solution, its soak time is preferably 2-3min；For sulphur Acid solution, its soak time are preferably 1.5-2.5min.Certainly, different acid solution, its composition is not quite similar, so soak time Above-mentioned occurrence is not limited to temperature, can be adjusted as needed in actual production process.

In step S2026, the formula of T liquid is：

A) mass fraction is 37% hydrochloric acid (HCl) solution：20wt%-50wt% (such as 20wt%, 30wt%, 40wt%, 50wt% etc.), ammonium chloride (NH₄Cl)：10wt%-20wt% (such as 10wt%, 12wt%, 15wt%, 18wt%, 20wt% etc.), remaining be pure water (such as：100g T liquid is prepared, it is necessary to the commercially available concentrated hydrochloric acids of 20-50g, 10-20g ammonium chloride, Pure water is added to supply 100g)；

B) mass fraction is 85% phosphoric acid (H₃PO₄) solution：80wt%-85wt% (such as 80wt%, 82.5wt%, 85wt% etc.), ammonium chloride (NH₄Cl)：5wt%-10wt% (such as 5wt%, 8wt%, 10wt% etc.), remaining is pure water (ratio Such as：100g T liquid is prepared, it is necessary to which the commercially available phosphoric acid solutions of 80-85g, 5-10g ammonium chloride, add pure water to supply 100g)；

C) sodium hydroxide (NaOH)：10wt%-20wt% (such as 10wt%, 15wt%, 18wt%, 20wt% etc.), chlorine Change ammonium (NH₄Cl) account for 5wt%-10wt% (such as 5wt%, 8wt%, 10wt% etc.), remaining be pure water (such as：Prepare 100g T liquid, it is necessary to which 10-20g sodium hydroxide, 5-10g ammonium chloride, add pure water to supply 100g)；

D) mass fraction is 37% hydrochloric acid (HCl) solution：180g/L-230g/L (such as 180g/L, 200g/L, 215g/ L, 230g/L etc.), mass fraction is 65% nitric acid (HNO₃) solution：190g/L-210g/L (such as 190g/L, 200g/L, 210g/L etc.), mass fraction is 98% glacial acetic acid (CH₃COOH) solution：10g/L-30g/L (such as 10g/L, 18g/L, 20g/L, 25g/L, 30g/L etc.), mass fraction is 40% hydrofluoric acid (HF) solution：180g/L-220g/L (such as 180g/L, 190g/L, 200g/L, 210g/L, 220g/L etc.), disodium hydrogen phosphate (Na₂HPO₄·12H₂O)：10g/L-12g/L (ratios Such as 10g/L, 10.5g/L, 11g/L, 11.5g/L, 12g/L), ammonium chloride (NH₄Cl)：20g/L-50g/L (such as 20g/L, 30g/L, 40g/L, 50g/L etc.), remaining be pure water (such as：1L T liquid is prepared, it is necessary to the commercially available concentrated hydrochloric acids of 180-230g, 190- The commercially available concentrated nitric acids of 210g, the commercially available glacial acetic acid of 10-30g, the commercially available hydrofluoric acid of 180-220g, 10-12g disodium hydrogen phosphates, 20- 50g ammonium chlorides, add pure water to 1L)；

E) mass fraction is 37% hydrochloric acid (HCl) solution：550ml/L-600ml/L (such as 550ml/L, 575ml/L, 600ml/L etc.), mass fraction be 65% nitric acid (HNO₃) solution：70ml/L-90ml/L (such as 70ml/L, 80ml/L, 90ml/L etc.), nickel chloride (NiCl₂)：8g/L-10g/L (such as 8g/L, 9g/L, 10g/L etc.), ferric trichloride (FeCl₃)： 300g/L-350g/L (such as 300g/L, 325g/L, 350g/L etc.), ammonium chloride (NH₄Cl)：10g/L-30g/L (such as 10g/ L, 20g/L, 30g/L etc.), remaining be pure water (such as：1L T liquid is prepared, it is necessary to the commercially available concentrated hydrochloric acids of 550-600ml, 70-90ml Commercially available concentrated nitric acid, 8-10g nickel chlorides, 300-350g ferric trichlorides, 10-30g ammonium chlorides, add pure water to 1L).

Preferably, in step S2026, soak time is 25min-35min (such as 25min, 30min, 35min etc.), Temperature is 25 DEG C -60 DEG C (such as 25 DEG C, 35 DEG C, 40 DEG C, 50 DEG C, 60 DEG C).

In the technical scheme, the T liquid of five kinds of formulas, each composition comprehensive function in every kind of formula can be to pot body The nanoscale hole hole on 10 surfaces carries out effective reaming effect, and the bigger etch pit in aperture is re-formed on the basis of nano-pore, And one layer of fat propylhomoserin film is formed in hole, when heatpiston injects, handed over by the chemical reaction of high pressure and fat and amine Change and merge, fill up nano aperture, the pot body 10 and plastic insulating cover 20 for making metal material are closely linked, and have The crab-bolt effect of effect, therefore the bond strength of pot body 10 and plastic insulating cover 20 has been effectively ensured.

What deserves to be explained is although above-mentioned five kinds of formulas can reach reaming effect, due to its material of different pans Matter is not quite similar, so the chemical reaction that reaming occurs is different, so to select suitable T liquid for specific material Reaming is carried out, the maximum of interests in the case where having considered the factors such as complexity, time, financial cost, could be realized Change.Because the application is molded in the outer layer of metal pan body 10, therefore the object that reaming is directed to is mainly pot body 10 Outer surface, and the outer surface of aluminum pot pot body 10 is aluminium, the outer surface of stainless-steel pan and compound pot are stainless steel, the skill of our company Art personnel show that aluminum pot preferably uses and any of (a, b, c) is formulated in first three, and stainless after test of many times and analysis Steel pot and compound pot are then preferably using any of latter two formula (d, e).

Soak time in T liquid is 25min-35min, both ensure that T liquid energies enough played effective reaming effect, and protect Demonstrate,prove to be substantially all in the nanoscale hole hole on the surface of pot body 10 and can form fat propylhomoserin film, to ensure 10 each position of pot body The plastic insulating cover 20 at place with the strong bonded of metal pan body 10；Turn avoid long soaking time causes hole excessive or gives birth to The situation for producing excessive cycle occurs；The temperature of T liquid is 25-60 DEG C, then ensure that the activity of T liquid, and then ensure that each in T liquid Item chemical reaction can be carried out efficiently.

Wherein, in step S2028, drying temperature be 80 DEG C -120 DEG C (such as 80 DEG C, 90 DEG C, 100 DEG C, 110 DEG C, 120 DEG C etc.), drying time is 5min-10min (such as 5min, 8min, 10min etc.).

Drying temperature is 80-120 DEG C, and both ensure that the moisture on the surface of pot body 10 can quickly volatilize, and turn avoid temperature Spending height causes to waste excessive energy consumption；Drying time is 5min-10min, both ensure that the moisture on the surface of pot body 10 and can fill Divide volatilization, turn avoid overlong time, be advantageous to shorten the production cycle.Certainly, drying temperature and drying time are not limited to Occurrence is stated, can be adjusted as needed in actual production process.

Wherein, in step S204, heatpiston PBT, mold temperature be 140 DEG C -160 DEG C (such as 140 DEG C, 150 DEG C, 160 DEG C etc.), injection speed is 50mm/s-80mm/s (such as 50mm/s, 60mm/s, 70mm/s, 80mm/s etc.), plastic partition The thickness of thermosphere 20 is 0.5mm-1.5mm (such as 0.5mm, 1mm, 1.5mm etc.).

Internal performance and apparent mass influence of the mold temperature on product is very big, and the height of mold temperature is decided by plastics knot The presence or absence of crystalline substance, the size of product and properity requirement, and other technological temperature (melt temperature, injection speed and injections Pressure, moulding cyclc etc.), therefore, select suitable mold temperature extremely important；And injection speed affect mold temperature, into It is type cycle etc., also extremely important.Those skilled in the art after test of many times and analysis by having found, mold temperature is in 140- In the range of 160 DEG C, injection speed is when in the range of 50-80mm/s, obtained better performances of plastic insulating cover 20, and apparent Quality is good.Certainly, for different heatpistons, above-mentioned parameter should be adjusted as needed in actual production process, with Ensure the obtained quality of product.

In any of the above-described embodiment, after step S20, as shown in Figures 3 to 5, in addition to：

Step S30：The pot body 10 for having plastic insulating cover 20 to preparation carries out destressing processing.

Preferably, in step s 30, by the way of baking, the pot body 10 for having plastic insulating cover 20 to preparation is carried out Destressing is handled.

Preferably, in step s 30, (such as 2h, 2.5h, 3h etc.) in the 2h-3h after the formation of plastic insulating cover 20, it is right Pot body 10 is toasted, and baking temperature is 150 DEG C -180 DEG C (such as 150 DEG C, 160 DEG C, 170 DEG C, 180 DEG C etc.), during baking Between be 1h-2h (1h, 1.5h, 2h etc.).

After the completion of injection, destressing processing is carried out to pan can effectively decrease or even eliminate metal pan body 10 and modeling Expect the stress of the inside of thermal insulation layer 20 remaining so that the structure inside pan is more uniform, metal pan body 10 and plastic insulating cover 20 combination is also even closer, so as to further increase the overall quality of pan.

By the way of baking, the stress inside metal pan body 10 can either be decreased or even eliminated, can also be reduced very To the stress eliminated inside plastic insulating cover 20, thus destressing processing is taken to decrease or even eliminate in whole pan The stress in portion, so as to shorten the production cycle, production cost is reduced, and be easy to industrialized mass production.

And the technical staff of our company has found by test of many times and after analyzing, in the 2h-3h after the completion of injection, to pot Tool carries out baking processing, best to the removal effect of the stress inside pan；Baking temperature is arranged on to 150-180 DEG C of scope It is interior, the stress that can effectively eliminate inside metal pan body 10 and plastic insulating cover 20 had both been ensure that, it is too high to turn avoid temperature The generation for situations such as causing plastic insulating cover 20 to soften or go bad, so as to ensure that the use reliability of pan；By baking time It is arranged in the range of 1-2h, the time that both ensure that the stress in pan has abundance eliminates, and turn avoid and wastes excessive energy Consumption.

The preparation method of the pan of the application offer is provided with reference to some specific embodiments.

Embodiment one

The aluminium sheet that thickness is 1-2.5mm is struck out into pan pot body；

Aluminum pot pot body is put into soak degreasing in 1wt% NaOH solution, wherein, soak time 2min, alkali lye temperature Spend for 40 DEG C；

Aluminum pot pot body after alkali cleaning is put into 1.5wt% salpeter solution and soaked, neutralizes what is remained in alkaline cleaning procedure NaOH, and nanoscale hole hole is formed on aluminum pot pot base surface, wherein, soak time 3min, acid liquor temperature is 40 DEG C；

Aluminum pot pot body after pickling is put into T liquid and soaked, wherein, the formula of T liquid is：Commercially available concentrated hydrochloric acid 20wt%, Ammonium chloride 10wt%, pure water 70wt%, soak time 30min, T liquid temperature degree are 45 DEG C；

Aluminum pot pot body is put into pure water and is rinsed, stove is then crossed and dries, wherein drying temperature is 120 DEG C, is dried Time is 8min；

By PBT plastic direct injection in aluminum pot pot body surface, plastic insulating cover is formed, wherein, mold temperature is 140 DEG C, injection moulding speed 60mm/s, the thickness of plastic insulating cover is 0.5mm；

After injection in 2-3h, pan is placed in stove and toasted, to eliminate stress, wherein, baking temperature is 150 DEG C, baking Time is 2h.

Embodiment two

Stainless steel plate is struck out into a pot body；

Stainless-steel pan body is put into soak degreasing in 20wt% sodium carbonate liquor, wherein, soak time 1.5min, Alkali liquid temperature is 40 DEG C；

Stainless-steel pan body after alkali cleaning is put into 2wt% hydrochloric acid solution and soaked, neutralizes what is remained in alkaline cleaning procedure Na₂CO₃, and nanoscale hole hole is formed on stainless-steel pan base surface, wherein, soak time 2min, acid liquor temperature is 40 DEG C；

Stainless-steel pan body after pickling is put into T liquid and soaked, wherein, the formula of T liquid is：Commercially available concentrated hydrochloric acid 230g/ L, commercially available concentrated nitric acid 210g/L, commercially available glacial acetic acid 30g/L, commercially available hydrofluoric acid 200g/L, Na₂HPO₄·12H₂O 10g/L, chlorination Ammonium 50g/L, remaining is pure water, and soak time 25min, T liquid temperature degree is 40 DEG C；

Stainless-steel pan body is put into pure water and is rinsed, stove is then crossed and dries, wherein drying temperature is 120 DEG C, is done The dry time is 10min；

By PBT plastic direct injection in stainless-steel pan body surface, plastic insulating cover is formed, wherein, mold temperature For 160 DEG C, injection moulding speed 60mm/s, the thickness of plastic insulating cover is 1mm；

After injection in 2-3h, pan is placed in stove and toasted, to eliminate stress, wherein, baking temperature is 180 DEG C, baking Time is 1h.

Embodiment three

Composite plate is struck out into a pot body；

Compound pot pot body is put into soak degreasing in 10wt% sodium radio-phosphate,P-32 solution, wherein, soak time 2min, alkali Liquid temperature degree is 40 DEG C；

Stainless-steel pan body after alkali cleaning is put into 1.5wt% sulfuric acid solution and soaked, neutralizes and is remained in alkaline cleaning procedure Na₃PO₄, and nanoscale hole hole is formed on compound pot pot base surface, wherein, soak time 2min, acid liquor temperature is 40 DEG C；

Stainless-steel pan body after pickling is put into T liquid and soaked, wherein, the formula of T liquid is：Commercially available concentrated hydrochloric acid 550ml/ L, commercially available concentrated nitric acid 70ml/L, nickel chloride 8g/L, ferric trichloride 300g/L, ammonium chloride 30g/L, remaining is pure water, soak time For 35min, T liquid temperatures degree is 40 DEG C；

Compound pot pot body is put into pure water and is rinsed, stove is then crossed and dries, wherein drying temperature is 120 DEG C, is done The dry time is 10min；

By PBT plastic direct injection in stainless-steel pan body surface, plastic insulating cover is formed, wherein, mold temperature For 150 DEG C, injection moulding speed 70mm/s, the thickness of plastic insulating cover is 1.5mm；

After injection in 2-3h, pan is placed in stove and toasted, to eliminate stress, wherein, baking temperature is 170 DEG C, baking Time is 2h.

After testing, the heat-insulating property of metal pan made from above three specific embodiment and traditional metal pan contrasts As a result it is as follows：

2.5L water is filled in two an equal amount of pans, a kind of is common metal pan, and another is the application's Fireless cooker with plastic insulating cover, stand after being heated to boiling water using same rice cooker, measured at any time at 20 DEG C of room temperature Between elapse pan in water temperature, such as following table：

Time (min)	Fireless cooker (DEG C)	Common metal pot (DEG C)
			10	92	75
20	85	65
			30	78	55
40	71	50
			50	68	45
60	65	40

As seen from the above table, temperature of the water in the fireless cooker of the application after a period of time is stood is above common metal pot In water temperature, and after tested, after the fireless cooker of the application stands 2h, the temperature of pot reclaimed water still has 48 DEG C, it follows that the application The preparation method of the pan of offer, significantly improve the heat-insulating property of pan.

In summary, the preparation method of pan provided by the utility model, the pot sheet of pan is first prepared using metal material Body, then made using NMT (Nano Molding Technology, nanometer forming technique) method on the outer surface of pot body Standby plastic insulating cover so that the pan prepared is neither easy breakage, and durability is preferable, has good heat insulation effect, pot again The heat of tool can be directly passed to water or the not past outside diffusion of culinary art food materials two inside pan, and then save in cooking process Electric energy；And use nanometer forming technique so that plastic insulating cover is closely linked to form integral type knot with metal pan base Structure, so as to improve the bond strength of plastic insulating cover and metal pan base, and then the tolerance and service life of pan are improved, And the metal appearance texture of pot body can be taken into account, can also simplify product construction part design, make product lighter and thinner, more into This effect.

In the utility model, term " first ", " second ", " the 3rd " are only used for the purpose of description, and it is not intended that Instruction implies relative importance；Term " multiple " then refers to two or more, is limited unless otherwise clear and definite.Term " peace The term such as dress ", " connected ", " connection ", " fixation " all should be interpreted broadly, for example, " connection " can be fixedly connected, can also It is to be detachably connected, or is integrally connected；" connected " can be joined directly together, and can also be indirectly connected by intermediary.It is right For one of ordinary skill in the art, it can understand that specific in the utility model of above-mentioned term containing as the case may be Justice.

In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that combining specific features, structure, material or feature that the embodiment or example describe is contained in of the present utility model at least one In individual embodiment or example.In this manual, identical embodiment is not necessarily referring to the schematic representation of above-mentioned term Or example.Moreover, specific features, structure, material or the feature of description can be in any one or more embodiments or example In combine in an appropriate manner.

Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims

A kind of 1. pan, it is characterised in that including：

Pot body, the outer surface of the pot body is provided with multiple nano level holes；With

Plastic insulating cover, it is attached on the outer surface of the pot body, and embedded the multiple nano level hole.
2. pan according to claim 1, it is characterised in that

The internal face of described hole is uneven.
3. pan according to claim 1, it is characterised in that

A diameter of 20nm-40nm of described hole.
4. pan according to any one of claim 1 to 3, it is characterised in that

The plastic insulating cover part covers the exterior bottom wall of the pot body, to form avoiding hollow groove in the bottom of the pan, makes The temperature sensor or temperature controller of the pan can fit with the pot body.
5. pan according to claim 4, it is characterised in that

The avoiding hollow groove is circular trough, and its center of circle is the bottom centre of the pan, its a diameter of 5mm-35mm.
6. pan according to any one of claim 1 to 3, it is characterised in that

The top sides of the pot body along stretching out to form pot edge, the plastic insulating cover from the pot body exterior bottom wall to It is upper to extend and cover the pot edge.
7. pan according to any one of claim 1 to 3, it is characterised in that

Region between adjacent described hole is uneven.
8. pan according to any one of claim 1 to 3, it is characterised in that

The thickness of the pot body is 1.5mm-5mm.
9. pan according to any one of claim 1 to 3, it is characterised in that

The thickness of the plastic insulating cover is 0.5mm-1.5mm.
10. a kind of cooking apparatus, it is characterised in that including electromagnetic induction coil and as claimed in any one of claims 1-9 wherein Pan, the magnetic line of force of the electromagnetic induction coil passes through the plastic insulating cover of the pan, so that this body-sensing of the pot of the pan It should generate heat.