CN209474379U - Pot body and cooking apparatus - Google Patents

Abstract

The utility model discloses a kind of pot bodys, comprising: metallic matrix, including being located at the iron-based material at the internal wall pot body；And antirust coat, it is located at the iron substrate surface comprising iron layer and metal active are higher than the reactive metal layer of iron layer, and at least partly described iron layer and the part reactive metal layer are mixed to form the inner surface of the pot body.In addition, the invention also discloses a kind of cooking apparatus including above-mentioned pot body.The pot body of the utility model protects pot body not to be corroded by forming cathodic protection.

Description

Pot body and cooking apparatus

Technical field

The utility model relates to cooking apparatus technical field more particularly to a kind of pot bodys.

Background technique

Irony product currently on the market, corrodes in order to prevent, generally can be by nitriding and oxidizing technique, the shape on iron-based material At nitration case and oxide layer, wherein nitration case can improve the hardness, wearability and corrosion resistance of product, and oxide layer makes product Surface melanism simultaneously makes product have corrosion resistance.But using this nitriding and oxidizing technique, not only energy consumption needed for process It is very high, the continuous heating 6-8h at 570-700 DEG C is generally required, so that processing efficiency is also low, moreover, the product being processed into Corrosion resistance is relatively low.Further, since Nitriding Technology cannot be used on composite board, so that nitriding and oxidizing technique be caused also to have Certain limitation.

Utility model content

For this purpose, the utility model provides a kind of pot body, exist above to solve the problems, such as or at least alleviate.

One aspect according to the present utility model provides a kind of pot body, comprising: metallic matrix, including it is located at the pot Iron-based material at internal wall；And antirust coat, it is located at the iron substrate surface comprising iron layer and metal active are higher than iron layer Reactive metal layer, and at least partly described iron layer and the part reactive metal layer are mixed to form the inner surface of the pot body.

Optionally, in pot body according to the present utility model, the iron layer is covered on the iron-based material of the metallic matrix, The reactive metal layer is formed in the iron layer；The iron layer has multiple protrusion elements, and at least partly described protrusion is single Member exposes to the reactive metal layer.

Optionally, in pot body according to the present utility model, the reactive metal layer is covered on the iron of the metallic matrix On substrate, the iron layer is formed in the reactive metal layer；The reactive metal layer has multiple protrusion elements, and at least portion The protrusion element is divided to expose to the iron layer.

Optionally, in pot body according to the present utility model, the surface of the iron-based material, which is formed, has multiple protrusion elements Rough layer, the rough layer be the iron layer, the reactive metal layer is formed on the rough layer, at least partly described convex It plays unit and exposes to the reactive metal layer.

Optionally, in pot body according to the present utility model, the reactive metal layer is aluminium layer, aluminium alloy layer, magnesium layer, magnesium One of alloy-layer, zinc layers or zinc alloy layer are a variety of.

Optionally, in pot body according to the present utility model, the iron layer and active metal of the inner surface of the pot body are formed The area ratio of layer is A, wherein 0.1≤A≤10.

Another aspect according to the present utility model provides a kind of cooking apparatus, including pot body as described above.

Technical solution according to the present utility model, provides a kind of pot body, including metallic matrix and is covered on Metal Substrate The antirust coat of the iron substrate surface of body, wherein antirust coat includes the reactive metal layer that iron layer and metal active are higher than iron layer, and Part iron layer and amount of activated metal layer are mixed to form the inner surface in pot body, protect so as to form cathode in inner surface of pot body Shield, reactive metal layer can protect iron layer not to be corroded, and therefore, the pot body of the utility model can be enhanced by principle of cathodic protection Corrosion resistance, the service life is longer.

The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model Art means, and being implemented in accordance with the contents of the specification, and in order to allow above and other purpose, feature of the utility model It can be more clearly understood with advantage, it is special below to lift specific embodiment of the present utility model.

Detailed description of the invention

To the accomplishment of the foregoing and related purposes, certain illustrative sides are described herein in conjunction with following description and drawings Face, these aspects indicate the various modes that can practice principles disclosed herein, and all aspects and its equivalent aspect It is intended to fall in the range of theme claimed.Read following detailed description in conjunction with the accompanying drawings, the disclosure it is above-mentioned And other purposes, feature and advantage will be apparent.Throughout the disclosure, identical appended drawing reference generally refers to identical Component or element.

Fig. 1 shows the structural schematic diagram of the pot body according to the utility model one embodiment；

Fig. 2 shows the structural schematic diagrams according to the pot body of the utility model second embodiment；

Fig. 3 shows the structural schematic diagram of the pot body according to the utility model third embodiment；

Fig. 4 shows the overlooking structure diagram of the pot body according to the utility model embodiment；

Fig. 5 shows the structural representation that protective film layer is formed in pot body according to the utility model one embodiment Figure.

Specific embodiment

Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure It is fully disclosed to those skilled in the art.

It should be pointed out that the materials such as all magnesium being related to, magnesium alloy, aluminium, aluminium alloy, zinc, kirsite in the utility model It is the common used material that can be bought in the market.

As it was noted above, more or less there is certain functional defect, therefore the utility model in pot body in the prior art Propose a kind of more optimized pot body of performance.Fig. 1 to Fig. 5 shows the structural schematic diagram of the pot body 100 of the utility model.

As depicted in figs. 1 and 2, which includes metallic matrix 110, and metallic matrix 110 can be by single layer steel plate, casting Iron or composite board are made, as long as the inner surface material of metallic matrix 110 is iron.Here, if with composite board system At metallic matrix 110, as long as guarantee composite board is iron in the internal layer material relative to pot body 100.It is appreciated that metal Matrix 110 includes the iron-based material at the inner sidewall of pot body 100.In addition, the pot body 100 further includes being covered on metallic matrix The antirust coat 110 of 110 iron substrate surface, antirust coat 110 include iron layer 120 and reactive metal layer 130, reactive metal layer 130 are made of the metal active metallic element higher than iron, so that the metal active of reactive metal layer 130 is higher than iron layer 120.Its In, at least partly iron layer 120 exposes to reactive metal layer 130, alternatively, at least partly reactive metal layer 130 exposes to iron layer 120, so that at least partly iron layer 120 and amount of activated metal layer 130 be made to be mixed to form the interior table in pot body 100 interlacedly Face, as shown in Figure 4.In this way, it is smaller thus will not on the one hand to expose area since iron layer 120 is only that part is exposed in the environment In the presence of getting rusty merely；On the other hand since the metal active of reactive metal layer 130 is higher than iron layer 120, iron layer 120 is made to be in yin Pole, and reactive metal layer 130 is in anode, according to principle of cathodic protection, the reactive metal layer 130 in anode, which can be protected, to be in The iron layer 120 of cathode will not be corroded.

Specifically, above-mentioned reactive metal layer 130 can be one of the active metallic element of metal active higher than iron or A variety of compositions, such as one of can be the metallic elements such as magnesium, magnesium alloy, aluminium, aluminium alloy, zinc, kirsite or a variety of.

According to one embodiment, as shown in Figure 1, carrying out thermal spraying on the iron-based material of metallic matrix 110 forms iron layer 120, so that iron layer 120 is covered on the iron-based material of metallic matrix 110, and the iron layer 120 that thermal spraying is formed has multiple protrusions Unit, it is preferable that multiple protrusion elements are uniformly distributed.Then thermal spraying is carried out in iron layer 120 form reactive metal layer 130. Alkali cleaning is carried out by the surface to the reactive metal layer 130 for being located at upper layer, so that the amount of activated of 120 surface of iron layer will be coated in Metal layer 130 removes, and so that at least partly protrusion element in iron layer 120 is exposed to reactive metal layer 130, in this way, part iron layer 120 and amount of activated metal layer 130 be alternately distributed in the inner surface of pot body 100, antirust coat is formed together, thus in pot body 100 inner surface forms cathodic protection, and protection iron layer 120 will not be corroded.It should be noted that in the present embodiment, due to Iron layer 120 and reactive metal layer 130 are not to spray simultaneously, but first thermal spraying forms iron layer 120, and then in iron layer 120 Thermal spraying forms reactive metal layer 130, and therefore, after alkali cleaning processing, iron layer 120 and activity gold is presented in the inner surface of pot body 100 The distribution for belonging to 130 cross-mixing of layer is exposed at the iron layer in 100 inner surface of pot body due to the difference of alkali cleaning degree after alkali cleaning 120 is also different from the distribution of reactive metal layer 130, therefore, iron layer 120 and reactive metal layer 130 in antirust coat surface layer have can It can be discontinuous or continuous state.But the entirety of iron layer 120 is continuous state, as shown in Figure 1.Reactive metal layer 130 it is whole Body is also continuous state, as shown in Figure 4.

Preferably, part iron layer 120 and amount of activated metal layer 130 are uniformly alternately distributed in the inner surface of pot body 100, It is formed together antirust coat.

According to second embodiment, as shown in Fig. 2, carrying out thermal spraying on the iron-based material of metallic matrix 110 forms activity Metal layer 130, so that reactive metal layer 130 is covered on the iron-based material of metallic matrix 110, and the active metal that thermal spraying is formed Layer 130 has multiple almost equally distributed protrusion elements.Then thermal spraying is carried out in reactive metal layer 130 form iron layer 120.Grinding process is carried out by the surface to iron layer 120, thus the part iron layer that 130 surface of reactive metal layer will be coated in 120 removals, make at least partly protrusion element in reactive metal layer 130 expose to iron layer 120, in this way, can equally make iron layer 120 It is alternately distributed in the inner surface of pot body 100 with reactive metal layer 130, is formed together antirust coat, thus in the interior table of pot body 100 Face forms cathodic protection, and protection iron layer 120 will not be corroded.It similarly, in the present embodiment, is that first thermal spraying forms active gold Belong to layer 130, and then in reactive metal layer 130 thermal spraying formed iron layer 120, therefore, after grinding process, pot body 100 it is interior Reactive metal layer 130 is presented in surface and iron layer 120 mixes staggered distribution, due to the difference for degree of polishing, polishing Be exposed at afterwards it is also different in the iron layer 120 of 100 inner surface of pot body and the distribution of reactive metal layer 130, therefore, in antirust coat surface layer Iron layer 120 and reactive metal layer 130 are likely to be discontinuous or continuous state.But reactive metal layer 130 and iron layer 120 Whole is all continuous state, as shown in Figure 2 and Figure 4.

According to third embodiment, as shown in figure 3, since metallic matrix 110 inherently has iron-based material, therefore, Ke Yitong It crosses and the iron-based material of metallic matrix 110 is surface-treated, form rough layer on the surface of iron-based material, which has multiple Almost equally distributed protrusion element, in this way, the rough layer of above-mentioned iron substrate surface is iron layer, it can be directly in Metal Substrate On the rough layer of the iron substrate surface of body 110 carry out thermal spraying formed reactive metal layer 130, thus the rough layer of iron-based material with should Antirust coat is collectively formed in reactive metal layer 130.Alkali cleaning is carried out by the surface to the reactive metal layer 130, to will be coated in Amount of activated metal layer 130 on the rough layer of iron substrate surface removes, and exposes at least partly protrusion element of rough layer Reactive metal layer 130, and the protrusion element and reactive metal layer 130 exposed alternately are distributed in the inner surface of pot body, thus shape At cathodic protection, the inner surface of pot body 100 is protected not to be corroded.It is appreciated that in the present embodiment, due to alkali cleaning degree Difference, rough layer and reactive metal layer 130 in antirust coat surface layer are likely to be discontinuous or continuous state.But metal The rough layer of matrix 110 and the entirety of reactive metal layer 130 are all continuous states, as shown in Figure 3 and Figure 4.

Specifically, in the above three embodiments, preliminarily form the iron layer 120 with protrusion element on iron-based material, Reactive metal layer 130 perhaps in rough layer (being iron layer) iron layer 120, reactive metal layer 130 or rough layer each protrusion Unit exposing is S in the area of 100 inner surface of pot body, wherein 0 < S≤3mm².Here, if S is greater than 3mm², will lead to iron layer 120 or reactive metal layer 130 single protrusion element be exposed at 100 inner surface of pot body area it is larger, to be easy in iron layer 120 Or reactive metal layer 130 forms chemical attack on the surface of exposed portion.

Further, as shown in Figure 1, in the above three embodiments, above-mentioned iron layer 120, reactive metal layer 130 or thick Each protrusion element of rough layer includes wave crest and trough, it is assumed that the height of wave crest is H, and the spacing between two adjacent wave crests is L, wherein 5um≤H≤30um, and 5um≤L≤30um.Here, if the height H of wave crest and the spacing L of two neighboring wave crest are equal When less than 5um, the small volume of the trough formed between two neighboring wave crest will lead to, to be eventually deposited at the work in trough Property metal layer 130 or iron layer 120 small volume, do not have apparent cathodic protection effect, cause finally formed antirust coat Corrosion resistance it is not strong, corrosion fatigue life is short.If the height H of wave crest and the spacing L of two neighboring wave crest are all larger than 30um, The volume that will cause the trough formed between two neighboring wave crest is larger, to be eventually deposited at the reactive metal layer in trough 130 or iron layer 120 volume it is also larger, cause the reactive metal layer being deposited in trough 130 or iron layer 120 be easy to itself corruption Erosion, finally formed antirust coat just do not have preferable anticorrosion effect yet.

In addition, in the above three embodiments, preliminarily form on the iron-based material of metallic matrix 110 with protrusion element Iron layer 120, reactive metal layer 130 or rough layer with a thickness of D, wherein 5um≤D≤200um.Finally formed antirust coat Thickness be also D.Here, if D is greater than 200um, it will lead to antirust coat and be easy to peel off, be corroded so as to cause pot body 100；If D Less than 5um, the crest height that will lead to protrusion element is smaller, thus the volume of either protrusion element or two neighboring wave crest Between the volume of trough that is formed it is smaller, so that no matter reactive metal layer 130 is deposited in finally formed antirust coat In the trough that iron layer is formed, or it is located at protrusion element, volume is smaller, and reactive metal layer 130 is caused not have obviously Cathodic protection effect, cause the corrosion resistance of finally formed antirust coat not strong, corrosion fatigue life is short.

It should be noted that thermal spraying is preferably electric arc spraying in embodiment according to the present utility model.

Further, the top view shown referring to fig. 4, in above-mentioned all embodiments, on the unit area of antirust coat, The area ratio of the iron layer 120 and reactive metal layer 130 that are exposed at antirust layer surface is A, wherein 0.1≤A≤10.It can manage Solution, on the entire inner surface of the pot body 100 of formation, the area ratio of iron layer 120 and reactive metal layer 130 is also A.Here, If A less than 0.1, will lead to the iron layer 120 of 100 inner surface of pot body area it is too small can ignore, thus antirust coat almost by The formation of reactive metal layer 130, does not have the meaning of uncoated rustproof iron pot.If A is greater than 10, the list of 100 inner surface of pot body can be made 120 area of iron layer in plane product is too big, and the area of reactive metal layer 130 is relatively too small, causes reactive metal layer 130 cannot Play the role of apparent cathodic protection, so that iron layer 120 is also easy for being corroded, the corrosion resistance of antirust coat is poor.

Preferably, in embodiment according to the present utility model, the porosity of antirust coat is M, wherein M≤5%.Here, If M is greater than 5%, the anti-corrosion capability that will lead to antirust coat is weaker, does not have the effect for significantly pot body being protected not to be corroded.

The utility model additionally provides a kind of cooking apparatus (not shown) comprising pot body 100 as described above.It answers When pointing out, the utility model does not limit the concrete type and structure of the cooking apparatus, and the pot body 100 in the utility model can answer Cooking apparatus for various structures.

Another aspect according to the present utility model, additionally provides a kind of processing method of pot body 100, and this method includes such as Lower step:

S1: a pot base is made, wherein the substrate of pot base inner sidewall is iron-based material；

S2: antirust coat is formed in the inner sidewall of pot base, antirust coat includes iron layer 120 and reactive metal layer 130, wherein extremely Small part iron layer 120 and amount of activated metal layer 130 are alternately mixed to form the inner surface in pot body 100.

According to one embodiment, above-mentioned steps S2 includes:

SA21: thermal spraying forms raised iron layer 120 on the iron-based material of pot base inner sidewall；

SA22: thermal spraying forms reactive metal layer 130 in iron layer 120；

SA23: alkali cleaning is carried out to 130 surface of reactive metal layer, so that the protrusion of part iron layer 120 exposes to active metal Layer 130.

It here, is to be chemically reacted by reactive metal layer 130 with aqueous slkali, thus by the high spot of iron layer 120 Reactive metal layer 130 removes, and exposes the protrusion of iron layer 120 on 130 surface of reactive metal layer, to make the protrusion of iron layer 120 The inner surface of pot body 100 is alternately distributed in reactive metal layer 130, as shown in figure 4, protecting iron to form cathodic protection Layer 120 will not be corroded.In other embodiments, it before SA23, can also first be mechanically polished, so that being located at activity The iron layer 120 of 130 lower section of metal layer is exposed, then carries out step SA23, and the lesser iron layer 120 of wave crest is exposed.

According to second embodiment, above-mentioned steps S2 includes:

SB21: thermal spraying forms raised reactive metal layer 130 on the iron-based material of pot base inner sidewall；

SB22: thermal spraying forms iron layer 120 in reactive metal layer 130；

SB23: polishing to 120 surface of iron layer, so that the protrusion of amount of activated metal layer 130 exposes to iron layer 120.

It here, is by polishing the convex of reactive metal layer 130 since iron layer 120 can't be reacted with aqueous slkali Iron layer 120 at rising removes, and exposes the protrusion of reactive metal layer 130 on 120 surface of iron layer, to make reactive metal layer 130 Protrusion be alternately distributed in the inner surface of pot body 100 with iron layer 120, as shown in figure 4, protecting iron to form cathodic protection Layer 120 will not be corroded.

Specifically, in the above-described embodiments, the step of thermal spraying formation iron layer 120 include:

T1: iron wire is packed into electric arc spraying spray gun, wherein the diameter of iron wire is 1.2mm；

T2: control pot base rotation, and the power switch of electric arc spraying spray gun is opened, to make iron wire melt and be deposited on pot The iron substrate surface of base inner sidewall forms iron layer 120.Specifically, height of the electric arc spraying spray gun apart from pot base is 350-400mm, Its silk feeding quantity is 60-100cm/min, and the pressure of compressed air is 0.4Mpa, electric current 160A.

In addition, in the above-described embodiments, the step of thermal spraying forms reactive metal layer 130, includes:

K1: active metal silk is packed into electric arc spraying spray gun；It should be noted that active metal silk is to be lived by metal Wire made of the property metallic element higher than iron, as long as active metal silk is opposite with 120 type of reactive metal layer is formed by Should, such as can be magnesium wire, Mg alloy wire, aluminium wire, aluminum-alloy wire, zinc silk, saxonia metal wire etc.；Optionally, active metal Silk is aluminium wire, and the diameter of aluminium wire is 1.2mm；

K2: control pot base rotation, and the power switch of electric arc spraying spray gun is opened, to make active metal silk melt and sink Product forms reactive metal layer 130 on the surface of iron layer 120.Specifically, height of the electric arc spraying spray gun apart from pot base is 250- 400mm, silk feeding quantity 60-100cm/min, the pressure of compressed air are 0.4Mpa, electric current 80A.

According to third embodiment, above-mentioned steps S2 includes:

SC21: roughening treatment is carried out to the iron substrate surface of pot base inner sidewall, forms iron substrate surface raised Rough layer, the rough layer are above-mentioned iron layer 120；

SC22: thermal spraying forms reactive metal layer 130 on raised rough layer；

SC23: alkali cleaning is carried out to 130 surface of reactive metal layer, so that the protrusion of part rough layer exposes to reactive metal layer 130。

To which the antirust coat of final 100 inner surface of pot body is collectively formed in the rough layer and reactive metal layer 130 of pot base.This In, and chemically reacted with aqueous slkali by reactive metal layer 130, thus by the reactive metal layer of the high spot of rough layer 130 removals expose the protrusion of rough layer on 130 surface of reactive metal layer, to make the protrusion and reactive metal layer of rough layer 130 are alternately distributed in the inner surface of pot body 100, as shown in figure 4, protection pot body 100 will not be rotten to form cathodic protection Erosion.

It should be noted that forming antirust coat in the inner surface of pot body 100 in embodiment according to the present utility model Afterwards, since antirust layer surface is more coarse, the smoothings such as sanding or polishing processing can be carried out to antirust coat, to make The inner surface of finally formed pot body 100 is more smooth and smooth.

In addition, after forming above-mentioned antirust coat, in order to further enhance the corrosion resistance of antirust coat, above-mentioned steps S2 it Afterwards, it can also be sprayed, aoxidized to antirust coat is exposed, phosphatization or nitrogen treatment, be protected to be formed in antirust layer surface Film layer 125.It is of course also possible to only form protective film layer 125 on 120 surface of the iron layer of exposing, as shown in Figure 5.According to above-mentioned table The method of surface treatment is different, and protective film layer 125 can be polyethersulfon layer, oxidation film, phosphating coat or nitride film accordingly.

In the description of this specification unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should all be done extensively Reason and good sense solution.In addition, the orientation or positional relationship of the instructions such as term " on ", "lower", "inner", "outside", "top", "bottom" is based on attached drawing Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute The device or unit of finger must have specific direction, be constructed and operated in a specific orientation, it is thus impossible to be interpreted as to this reality With novel limitation.

In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiment or examples In can be combined in any suitable manner.

In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that the utility model Embodiment can be practiced without these specific details.In some instances, well known side is not been shown in detail Method, structure and technology, so as not to obscure the understanding of this specification.

Claims (10)

1. a kind of pot body (100) characterized by comprising

Metallic matrix (110), including being located at the iron-based material at the pot body (100) inner wall；And

Antirust coat is located at the iron substrate surface comprising iron layer (120) and metal active are higher than the activity of iron layer (120) Metal layer (130), and at least partly described iron layer (120) and the part reactive metal layer (130) are mixed to form the pot body (100) inner surface.

2. pot body (100) as described in claim 1, it is characterised in that:

The iron layer (120) is covered on the iron-based material of the metallic matrix (110), and the reactive metal layer (130) is formed in On the iron layer (120)；

The iron layer (120) has multiple protrusion elements, and at least partly described protrusion element exposes to the reactive metal layer (130)。

3. pot body (100) as described in claim 1, it is characterised in that:

The reactive metal layer (130) is covered on the iron-based material of the metallic matrix (110), and the iron layer (120) is formed in On the reactive metal layer (130)；

The reactive metal layer (130) has multiple protrusion elements, and at least partly described protrusion element exposes to the iron layer (120)。

4. pot body (100) as described in claim 1, it is characterised in that:

The surface of the iron-based material forms the rough layer with multiple protrusion elements, and the rough layer is the iron layer (120), institute It states reactive metal layer (130) to be formed on the rough layer, at least partly described protrusion element exposes to the reactive metal layer (130)。

5. pot body (100) according to any one of claims 1-4, it is characterised in that:

The reactive metal layer (130) be one of aluminium layer, aluminium alloy layer, magnesium layer, magnesium alloy layer, zinc layers or zinc alloy layer or It is a variety of.

6. pot body (100) according to any one of claims 1-4, it is characterised in that:

The area ratio of the iron layer (120) and reactive metal layer (130) that form the inner surface of the pot body (100) is A, wherein 0.1≤A≤10。

7. pot body (100) according to any one of claims 1-4, it is characterised in that:

The antirust coat with a thickness of D, wherein 5um≤D≤200um.

8. such as the described in any item pot bodys of claim 2-4 (100), it is characterised in that:

The area for being each exposed at the protrusion element of the pot body (100) inner surface is S, wherein 0 < S≤3mm²。

9. such as the described in any item pot bodys of claim 2-4 (100), it is characterised in that:

Each protrusion element includes wave crest, and the height of the wave crest is H, wherein 5um≤H≤30um；

The spacing of the two neighboring wave crest is L, wherein 5um≤L≤30um.

10. a kind of cooking apparatus, it is characterised in that: including such as described in any item pot bodys of claim 1-9 (100).