CN108013731A - Interior Cooker structure, electric pressure cooking saucepan and stainless steel pot bottom complex method - Google Patents

Interior Cooker structure, electric pressure cooking saucepan and stainless steel pot bottom complex method Download PDF

Info

Publication number
CN108013731A
CN108013731A CN201610952944.8A CN201610952944A CN108013731A CN 108013731 A CN108013731 A CN 108013731A CN 201610952944 A CN201610952944 A CN 201610952944A CN 108013731 A CN108013731 A CN 108013731A
Authority
CN
China
Prior art keywords
stainless steel
plate
pot body
steel pot
heat accumulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610952944.8A
Other languages
Chinese (zh)
Inventor
梅若愚
何柏锋
周亚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Original Assignee
Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd filed Critical Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority to CN201610952944.8A priority Critical patent/CN108013731A/en
Publication of CN108013731A publication Critical patent/CN108013731A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/002Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/08Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/086Pressure-cookers; Lids or locking devices specially adapted therefor with built-in heating means
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • A47J36/02Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Cookers (AREA)

Abstract

The present invention provides a kind of interior Cooker structure, electric pressure cooking saucepan and stainless steel pot bottom complex method, interior Cooker structure, including:Stainless steel pot body, the cross section of stainless steel pot body is ellipse, and stainless steel pot body includes side wall and the bottom wall positioned at sidewall bottom;Heat accumulation plate, positioned at the lower surface of bottom wall;And stainless steel plate, positioned at the lower surface of heat accumulation plate;Stainless steel pot body, heat accumulation plate and stainless steel plate are combined together successively by way of hot pressing.Interior Cooker structure provided by the invention, interior pot the bottom of a pan composite design is carried out, the efficiency of heating surface can be improved, and make stainless steel pot body that there is good rigidity, bear the stability for keeping overall dimensions to deform during load, without the sheet metal thickness of Integral upset stainless steel pot body, the weight of interior Cooker structure is reduced, realizes that plate is thinning, drops this effect.

Description

Interior Cooker structure, electric pressure cooking saucepan and stainless steel pot bottom complex method
Technical field
The present invention relates to processing technology field, in particular to a kind of interior Cooker structure, a kind of electric pressure cooking saucepan and it is a kind of not Become rusty steel the bottom of a pan complex method.
Background technology
Interior pot is that electric pressure cooking saucepan realizes one of core part of cooking function.Existing interior pot has circular and oval from external form Point of shape, for pot because the symmetry of its structure size, it is in integrally homogeneous deformation to bear after internal pressure in circle.Oval pressure cooker Because of the asymmetry of its major and minor axis, after bearing internal pressure, oval long axis direction size diminishes, to contract;Short-axis direction Become large-sized, expand outwardly, overall deformation trend is intended to circular, it is necessary to especially consider to bear the shape control after internal load Accuracy.Two major classes are broadly divided into by the material of interior pot:First, pot in aluminium alloy;2nd, stainless steel inner container;For in stainless steel Courage conventional method achievees the purpose that reinforcement by increase material thickness, and so the weight of finished product and cost can greatly increase.It is special Not for stainless steel inner container, since its thermal conductivity factor is low compared with aluminium alloy, heat transfer efficiency is not high.Composite inner liner can reach than strong Purpose high, weight is few, but machine-shaping is difficult, of high cost.
The content of the invention
It is contemplated that at least solve one of technical problem present in the prior art or correlation technique.
For this reason, an object of the present invention is to provide a kind of interior Cooker structure.
It is another object of the present invention to propose a kind of electric pressure cooking saucepan.
Another object of the present invention is to propose a kind of stainless steel pot bottom complex method.
In view of this, a purpose according to the present invention, there is provided a kind of interior Cooker structure, including:Stainless steel pot body, it is stainless The cross section of steel pot body is ellipse, and stainless steel pot body includes side wall and the bottom wall positioned at sidewall bottom;Heat accumulation plate, the bottom of positioned at The lower surface of wall;And stainless steel plate, positioned at the lower surface of heat accumulation plate;Stainless steel pot body, heat accumulation plate and stainless steel plate pass through The mode of hot pressing is combined together successively.
Interior Cooker structure provided by the invention, has carried out interior pot the bottom of a pan composite design, can improve the efficiency of heating surface, and makes stainless Steel pot body has good rigidity, bears to keep the stability of overall dimensions deformation during load, realizes that plate is thinning, drops this effect Fruit.Interior Cooker structure uses stainless steel pot body, safe, but thermal conductivity factor (16.2W (m DEG C)) is low, by bottom wall following table The high heat accumulation plate of face installation thermal conductivity factor, the efficiency of heating surface are improved;Meanwhile the cross section of stainless steel pot body is ellipse, Bear that the problem of short axle is elongated, and major axis shortens, and deformation tendency tends to circle occurs during internal pressure, heat accumulation plate is set The intensity of stainless steel pot body can be strengthened to a certain extent by putting, but consider thermal resistance problem, and heat accumulation plate is unsuitable blocked up, increases at this time If stainless steel plate, and three is combined together by way of hot pressing, formed compound with comprehensive metallurgical binding state Structure, has the characteristics that compound bed boundary is firm, tensile strength is high, good extending performance, can make the strength and stiffness of interior Cooker structure It is effectively ensured, improves structural stability, without the sheet metal thickness of Integral upset stainless steel pot body, reduces interior pot knot The weight of structure, reduces production cost.
In addition, the interior Cooker structure in above-mentioned technical proposal provided by the invention can also have following additional technical feature:
In the above-mentioned technical solutions, it is preferable that side wall and bottom wall joining place have a circular sliding slopes section, stainless steel plate Outer ledge is folded upward at forming a supporting section, and supporting section is incorporated into the outer surface of the circular sliding slopes section.
In the technical scheme, supporting section is folded upward at and is incorporated into the outer surface of circular sliding slopes section, can strengthen bottom wall While play the role of reinforcement to side wall, avoid transverse from shortening, short axle is elongated.
In the above-mentioned technical solutions, it is preferable that heat accumulation plate is aluminium heat accumulation plate or aluminium alloy heat accumulation plate.
In the technical scheme, heat accumulation plate uses aluminium heat accumulation plate or aluminium alloy heat accumulation plate, and aluminium has higher thermal conductivity factor (227W (m DEG C)), and there is heat storage function, help to improve the efficiency of heating surface.
In the above-mentioned technical solutions, it is preferable that the material trade mark of stainless steel pot body is SUS304 or SUS430.
In the technical scheme, the material trade mark of stainless steel pot body belongs to austenite not for SUS304 or SUS430, SUS304 Become rusty steel, and good combination property is nonmagnetic, corrosion-resistant, and SUS430 belongs to ferritic stainless steel, and thermal conductivity factor is relatively large, beneficial to food materials Culinary art, the coefficient of expansion is small, helps to improve the structural stability of interior Cooker structure.
In the above-mentioned technical solutions, it is preferable that the material trade mark of heat accumulation plate is A3003 or A3005.
In the technical scheme, heat accumulation plate can use the aluminium alloy of fine aluminium or the material trade mark for A3003 or A3005, aluminium and Aluminium alloy has stronger thermal conductivity, can improve the efficiency of heating surface, while A3003 and A3005 belong to aluminium, manganese systems aluminium alloy, have Good plasticity and weldability, it is easy to process.
In the above-mentioned technical solutions, it is preferable that the material trade mark of stainless steel plate be at least SUS304, SUS430 and One kind among SUS201.
In the technical scheme, the material trade mark of stainless steel plate is at least among SUS304, SUS430 and SUS201 One kind, SUS304 belong to austenitic stainless steel, and good combination property is nonmagnetic, corrosion-resistant, and SUS430 belongs to ferritic stainless steel, heat conduction Coefficient is relatively large, and the coefficient of expansion is small, helps to improve the structural stability of interior Cooker structure, replacements of the SUS201 as SUS304 Just, corrosion resistance is lower slightly, but cheap, and production cost can be further reduced in the case where meeting strength demand.
In the above-mentioned technical solutions, it is preferable that the wall thickness of stainless steel pot body is more than or equal to 0.4mm, and is less than or equal to 2mm。
In the technical scheme, stainless steel has higher intensity in itself, and the situation of compound reinforcement is being carried out to the bottom of a pan Under, take lower limits of the 0.4mm as its wall thickness, it is ensured that intensity needs;Pot body need not be blocked up at the same time, can using 2mm as the upper limit Meet intensity needs, and can be overweight to avoid pot body.
In the above-mentioned technical solutions, it is preferable that the thickness of heat accumulation plate is more than or equal to 1mm, and is less than or equal to 3mm.
In the technical scheme, the heat conduction of aluminium alloy and thermal storage performance are good, while its intensity is less than stainless steel, is made with 1mm For the lower thickness limit value of heat accumulation plate, it can meet intensity needs;Heat accumulation, proof strength can be strengthened by suitably increasing its thickness, but Blocked up heat accumulation plate 14 can increase the overall weight of interior Cooker structure 1, and thermal resistance also can accordingly increase, and cause stainless steel pot body to be heated temperature Degree deficiency, thus through theoretical and verification experimental verification, it is 3mm to take upper thickness limit value.
In the above-mentioned technical solutions, it is preferable that the thickness of stainless steel plate is more than or equal to 0.3mm, and is less than or equal to 1mm。
In the technical scheme, stainless steel plate has higher intensity in itself, and is used as auxiliary is strengthened, and thickness is not Must be excessive, through theoretical and verification experimental verification, 0.3mm to 1mm is taken, can both meet strength demand, excessive weight will not be caused to increase Amount.
Another purpose according to the present invention, there is provided a kind of electric pressure cooking saucepan, including as described in any of the above-described technical solution Interior Cooker structure.
Electric pressure cooking saucepan provided by the invention, due to the interior Cooker structure described in including any of the above-described technical solution, thus possesses Whole advantageous effects of the interior Cooker structure, details are not described herein.
Further object according to the present invention, there is provided a kind of stainless steel pot bottom complex method, it is any of the above-described for processing Interior Cooker structure described in technical solution, stainless steel pot bottom complex method include:Step 102, by stainless steel pot body and stainless steel bottom Plate stretching is molded;Step 106, the composite surface of the composite surface in stainless steel pot body, the composite surface of heat accumulation plate and stainless steel plate applies Smear brazing flux;Step 108, stainless steel pot body, heat accumulation plate and the stainless steel plate after smearing brazing flux are heated, dries brazing flux, remove Remove the moisture of brazing flux;Step 110, dried stainless steel pot body, heat accumulation plate and stainless steel plate are placed in an inert atmosphere It is brazed, the faying face between stainless steel pot body, heat accumulation plate and stainless steel plate is reached metallurgical state, and by stainless-steel pan Body, heat accumulation plate and stainless steel plate heat pressing successively.
Stainless steel pot bottom complex method provided by the invention, first by stretching come machine-shaping stainless steel pot body and stainless Steel sole plate, it is easy to operate, and integrated molding can improve its intensity, then using brazing flux as medium, by smearing pricker in each composite surface Agent simultaneously adjusts temperature, and stainless steel pot body, heat accumulation plate and stainless steel plate are welded together successively, reach comprehensive metallurgy combination shape State, forms composite construction, and thus obtained interior Cooker structure has that compound bed boundary is firm, tensile strength is high, good extending performance Feature, makes interior Cooker structure have good rigidity, and the stability of interior pot overall dimensions deformation can be kept when bearing load, without The sheet metal thickness of Integral upset stainless steel pot body, reduces interior pot weight, realizes that plate is thinning, drops this effect;Accumulation of heat at the same time Plate can make up the deficiency of stainless steel pot body thermal conductivity, improve the efficiency of heating surface of interior Cooker structure.Heat accumulation plate is increased thermal conductivity, The material different from stainless steel need to be selected, its fusing point is different from stainless steel, and brazing flux is applied to each composite surface, its fusing point is less than welding Part, fills up the gap between composite surface by wetting action, welding stress and distortion is smaller, thus by different melting points after heating fusing Stainless steel pot body, heat accumulation plate and stainless steel plate it is welded, and reduce influence to weldment physical and chemical performance, formed With superior rigid composite pan bottom;Meanwhile during soldering, internally can integrally heat Cooker structure, once be soldered whole weld seams, improve Productivity.
In the above-mentioned technical solutions, it is preferable that step 106 further includes:Composite surface, heat accumulation plate in stainless steel pot body is compound After face and stainless steel plate composite surface smear brazing flux, composite surface, heat accumulation plate composite surface and stainless steel plate to stainless steel pot body The surface injection pressure-air of composite surface drives brazing flux flowing, so that brazing flux is evenly distributed.
In the technical scheme, by spraying pressure-air, brazing flux is evenly distributed on each composite surface, can be avoided The relatively thin region of brazing flux coating forms welding cavity, ensure that the rigidity requirement of welding quality and interior Cooker structure;Meanwhile it may be such that The interior Cooker structure the bottom of a pan after the completion of welding is smooth, is easy to use, improves user experience.
In the above-mentioned technical solutions, it is preferable that further included between step 106 and step 102:Step 104, using cleaning The dirt on the composite surface, heat accumulation plate composite surface and stainless steel plate composite surface of stainless steel pot body is cleaned in agent.
In the technical scheme, each composite surface is fully cleaned first before smearing brazing flux, can avoid dirt, such as remaining lubrication Oil and shaping oil are mixed into brazing flux, influence brazing flux welding performance;Meanwhile brazing flux is come into full contact with weldment, mutual divergent contour Into welding surface, the reliability of soldering ensure that.
In the above-mentioned technical solutions, it is preferable that further include after step 110:Step 112, by stainless steel pot body, accumulation of heat Plate and stainless steel plate cooling, cure brazing flux.
In the technical scheme, the interior Cooker structure after sufficiently cool welding, can cure brazing flux, stay in each composite surface it Between, become stable entirety with each weldment, form finished product, ensure that welding quality, improve the intensity and just of interior Cooker structure Degree.
In the above-mentioned technical solutions, it is preferable that the trade mark of brazing flux is at least among AA-4343, AA-4045 and AA-4047 One kind.
In the technical scheme, intermediate layer of the aluminium alloy heat accumulation plate as composite construction, selects to use aluminium pricker in soldering The brazing flux of weldering, is suitable for the performance of weldment.
In the above-mentioned technical solutions, it is preferable that the warm temperature of step 108 is more than or equal to 180 DEG C, and is less than or equal to 240℃。
In the technical scheme, it is dry brazing flux, warm temperature at least needs to reach 180 DEG C, while to avoid temperature excessive Cause each parts surface of interior Cooker structure to produce high-temperature oxide, cause the strength and stiffness of interior pot and welding quality impacted, Warm temperature must be controlled within 240 DEG C.
In the above-mentioned technical solutions, it is preferable that the warm temperature of step 108 is more than or equal to 180 DEG C, and is less than or equal to 220℃。
In the technical scheme, the warm temperature upper limit of dry brazing flux is further limited to 220 DEG C, it can be ensured that welding table Face does not produce high-temperature oxide.
In the above-mentioned technical solutions, it is preferable that in the soldering in carrying out step 110, stainless steel pot body, heat accumulation plate and not The temperature that rust steel sole plate needs to heat is more than or equal to 580 DEG C, and less than or equal to 640 DEG C.
In the technical scheme, ensure that weldment is still solid for fusing brazing flux, welding temperature need to be limited to brazing flux Fusing point and weldment minimum fusing point between, and the slightly below fusing point of the minimum fusing point of weldment, i.e. aluminium alloy, to avoid weldering Fitting melts, so as to ensure that the physical and chemical performance of weldment is unaffected, ensure that the strength and stiffness of interior Cooker structure.Make Fusing point for AA-4343, AA-4045 and AA-4047 of brazing flux is 577 DEG C, and the fusing point of aluminium alloy is 660 DEG C, thus takes heating Temperature is 580 DEG C to 640 DEG C.
In the above-mentioned technical solutions, it is preferable that in the soldering in carrying out step 110, stainless steel pot body, heat accumulation plate and not The temperature that rust steel sole plate needs to heat is more than or equal to 580 DEG C, and less than or equal to 620 DEG C.
In the technical scheme, further reduce brazing temperature, can fully ensure that the physical and chemical performance of weldment from Influence, the strength and stiffness of Cooker structure in guarantee.
To sum up, stainless steel inner container is extensively liked by consumer due to the security of its material, but in actually engineering is heated, The thermal conductivity factor (16.2W (m DEG C)) of stainless steel is low, is used alone and make it that cooking process is slow, influences user experience, the present invention The composite pan bottom of interior Cooker structure is made of three parts:The pure aluminum or aluminum alloy of first layer stainless steel, the second layer, third layer stainless steel (can omit), each bed boundary form comprehensive metallurgical binding state, with compound bed boundary is firm, tensile strength is high, extension property The characteristics of good, since the thermal conductivity factor (227W (m DEG C)) of aluminium is higher and has heat storage function, can put forward the culinary art efficiency of heating surface It is high;Soldering can once be soldered whole weld seams, improve productivity.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment Substantially and it is readily appreciated that, wherein:
Fig. 1 shows the sectional view of interior Cooker structure according to an embodiment of the invention;
Fig. 2 shows partial enlarged views of the Fig. 2 in A portions.
Fig. 3 shows the flow chart of stainless steel pot bottom complex method according to an embodiment of the invention.
Wherein, the correspondence between the reference numeral in Fig. 1 and Fig. 2 and component names is:
Cooker structure in 1,12 stainless steel pot bodys, 122 side walls, 124 bottom walls, 126 circular sliding slopes sections, 14 heat accumulation plates, 16 is stainless Steel sole plate, 162 supporting sections.
Embodiment
It is to better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real Mode is applied the present invention is further described in detail.It should be noted that in the case where there is no conflict, the implementation of the application Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also To be implemented using other different from other modes described here, therefore, protection scope of the present invention and from described below Specific embodiment limitation.
Described according to some embodiments of the invention interior Cooker structure, electric pressure cooking saucepan and stainless steel are described referring to Fig. 1 to Fig. 3 The bottom of a pan complex method.
As depicted in figs. 1 and 2, the embodiment of first aspect present invention proposes a kind of interior Cooker structure 1, including:Stainless steel Pot body 12, the cross section of stainless steel pot body 12 is ellipse, and stainless steel pot body 12 includes side wall 122 and positioned at 122 bottom of side wall The bottom wall 124 in portion;Heat accumulation plate 14, positioned at the lower surface of bottom wall 124;With stainless steel plate 16, positioned at the lower surface of heat accumulation plate 14; Stainless steel pot body 12, heat accumulation plate 14 and stainless steel plate 16 are combined together successively by way of hot pressing.
Interior Cooker structure 1 provided by the invention, has carried out interior pot the bottom of a pan composite design, can improve the efficiency of heating surface, and make not Rust steel pot body 12 has good rigidity, bears to keep the stability of overall dimensions deformation during load, realizes that plate is thinning, drops this Effect.Interior Cooker structure 1 uses stainless steel pot body 12, safe, but thermal conductivity factor (16.2W (m DEG C)) is low, by the bottom of at The high heat accumulation plate 14 of 124 lower surface of wall installation thermal conductivity factor, the efficiency of heating surface is improved;Meanwhile stainless steel pot body 12 is transversal Face is ellipse, occurs that short axle is elongated during internal pressure is born, major axis shortens, and deformation tendency tends to be circular and asks Topic, the setting of heat accumulation plate 14 can strengthen the intensity of stainless steel pot body 12 to a certain extent, but consider thermal resistance problem, accumulation of heat Plate 14 is unsuitable blocked up, adds stainless steel plate 16 at this time, and three is combined together by way of hot pressing, and being formed has entirely The composite construction of face metallurgical binding state, has the characteristics that compound bed boundary is firm, tensile strength is high, good extending performance, can make The strength and stiffness of interior Cooker structure 1 are effectively ensured, and improve structural stability, without Integral upset stainless steel pot body 12 Sheet metal thickness, reduce the weight of interior Cooker structure 1, reduce production cost.
In one embodiment of the invention, it is preferable that side wall 122 and 124 joining place of bottom wall have a circular sliding slopes section 126, the outer ledge of stainless steel plate 16 is folded upward at forming a supporting section 162, and supporting section 162 is incorporated into the circular sliding slopes The outer surface of section 126.
In this embodiment, supporting section 162 is folded upward at and is incorporated into the outer surface of circular sliding slopes section 126, can strengthen Play the role of reinforcement to side wall 122 while bottom wall 124, avoid transverse from shortening, short axle is elongated.
In one embodiment of the invention, it is preferable that heat accumulation plate 14 is aluminium heat accumulation plate or aluminium alloy heat accumulation plate.
In this embodiment, heat accumulation plate 14 uses aluminium heat accumulation plate or aluminium alloy heat accumulation plate, and aluminium has higher thermal conductivity factor (227W (m DEG C)), and there is heat storage function, help to improve the efficiency of heating surface.
In one embodiment of the invention, it is preferable that the material trade mark of stainless steel pot body 12 is SUS304 or SUS430.
In this embodiment, the material trade mark of stainless steel pot body 12 belongs to austenite not for SUS304 or SUS430, SUS304 Become rusty steel, and good combination property is nonmagnetic, corrosion-resistant, and SUS430 belongs to ferritic stainless steel, and thermal conductivity factor is relatively large, beneficial to food materials Culinary art, the coefficient of expansion is small, helps to improve the structural stability of interior Cooker structure 1.
In one embodiment of the invention, it is preferable that the material trade mark of heat accumulation plate 14 is A3003 or A3005.
In this embodiment, heat accumulation plate 14 can use the aluminium alloy of fine aluminium or the material trade mark for A3003 or A3005, aluminium and Aluminium alloy has stronger thermal conductivity, can improve the efficiency of heating surface, while A3003 and A3005 belong to aluminium, manganese systems aluminium alloy, have Good plasticity and weldability, it is easy to process.
In one embodiment of the invention, it is preferable that the material trade mark of stainless steel plate 16 be at least SUS304, One kind among SUS430 and SUS201.
In this embodiment, the material trade mark of stainless steel plate 16 is at least among SUS304, SUS430 and SUS201 One kind, SUS304 belong to austenitic stainless steel, and good combination property is nonmagnetic, corrosion-resistant, and SUS430 belongs to ferritic stainless steel, heat conduction Coefficient is relatively large, and the coefficient of expansion is small, helps to improve the structural stability of interior Cooker structure 1, and SUS201 is replaced as SUS304's Dai Gang, corrosion resistance is lower slightly, but cheap, and production cost can be further reduced in the case where meeting strength demand.
In one embodiment of the invention, it is preferable that the wall thickness of stainless steel pot body 12 is more than or equal to 0.4mm, and small In equal to 2mm.
In this embodiment, stainless steel has higher intensity in itself, in the case where having carried out compound reinforcement to the bottom of a pan, Take lower limits of the 0.4mm as its wall thickness, it is ensured that intensity needs;Pot body need not be blocked up at the same time, using 2mm as the upper limit, Ji Nengman Sufficient intensity needs, and can be overweight to avoid pot body.
In one embodiment of the invention, it is preferable that the thickness of heat accumulation plate 14 is more than or equal to 1mm, and is less than or equal to 3mm。
In this embodiment, the heat conduction of aluminium alloy and thermal storage performance are good, while its intensity is less than stainless steel, using 1mm as The lower thickness limit value of heat accumulation plate 14, can meet intensity needs;Heat accumulation, proof strength can be strengthened by suitably increasing its thickness, but Blocked up heat accumulation plate 1414 can increase the overall weight of interior Cooker structure 1, and thermal resistance also can accordingly increase, cause stainless steel pot body 12 by Hot temperature deficiency, thus through theoretical and verification experimental verification, it is 3mm to take upper thickness limit value.
In one embodiment of the invention, it is preferable that the thickness of stainless steel plate 16 is more than or equal to 0.3mm, and small In equal to 1mm.
In this embodiment, stainless steel plate 16 itself has higher intensity, and is used as auxiliary is strengthened, and thickness is not Must be excessive, through theoretical and verification experimental verification, 0.3mm to 1mm is taken, can both meet strength demand, excessive weight will not be caused to increase Amount.
The embodiment of second aspect of the present invention proposes a kind of electric pressure cooking saucepan, including as described in above-mentioned any embodiment in Cooker structure 1.
Electric pressure cooking saucepan provided by the invention, due to the interior Cooker structure 1 described in including any of the above-described embodiment, thus possesses institute Whole advantageous effects of interior Cooker structure 1 are stated, details are not described herein.
As shown in Figure 1 to Figure 3, the embodiment of third aspect present invention proposes a kind of stainless steel pot bottom complex method, uses In processing the interior Cooker structure 1 described in any of the above-described technical solution, stainless steel pot bottom complex method includes:Step 102, by stainless steel 16 drawing and forming of pot body 12 and stainless steel plate;Step 106, the composite surface in stainless steel pot body 12, the composite surface of heat accumulation plate 14 And the composite surface of stainless steel plate 16 smears brazing flux;Step 108, by smear brazing flux after stainless steel pot body 12, heat accumulation plate 14 and Stainless steel plate 16 heats, and dries brazing flux, removes the moisture of brazing flux;Step 110, by dried stainless steel pot body 12, storage Hot plate 14 and stainless steel plate 16 are placed and are brazed in an inert atmosphere, make stainless steel pot body 12, heat accumulation plate 14 and stainless steel Faying face between bottom plate 16 reaches metallurgical state, and stainless steel pot body 12, heat accumulation plate 14 and stainless steel plate 16 are added successively Hot pressing.
Stainless steel pot bottom complex method provided by the invention, first by stretching come machine-shaping stainless steel pot body 12 and not Become rusty steel sole plate 16, easy to operate, and integrated molding can improve its intensity, then using brazing flux as medium, by being applied in each composite surface Smear brazing flux and adjust temperature, stainless steel pot body 12, heat accumulation plate 14 and stainless steel plate 16 are welded together successively, reach comprehensive Metallurgical binding state, forms composite construction, thus obtained interior Cooker structure 1 is with compound bed boundary is firm, tensile strength is high, prolongs The characteristics of performance is good is stretched, makes interior Cooker structure 1 that there is good rigidity, the steady of interior pot overall dimensions deformation can be kept when bearing load It is qualitative, without the sheet metal thickness of Integral upset stainless steel pot body 12, interior pot weight is reduced, realizes that plate is thinning, drop this Effect;Heat accumulation plate 14 can make up the deficiency of 12 thermal conductivity of stainless steel pot body at the same time, improve the efficiency of heating surface of interior Cooker structure 1. Heat accumulation plate 14 is increased thermal conductivity, need to select the material different from stainless steel, its fusing point is different from stainless steel, and brazing flux is applied to respectively Composite surface, its fusing point are less than weldment, the gap between composite surface, welding stress and change are filled up by wetting action after heating fusing Shape is smaller, thus that the stainless steel pot body 12 of different melting points, heat accumulation plate 14 and stainless steel plate 16 is welded, and reduces butt welding The influence of fitting physical and chemical performance, formation have superior rigid composite pan bottom;Meanwhile during soldering, can internally Cooker structure 1 it is whole Body heats, and is once soldered whole weld seams, improves productivity.
As shown in figure 3, in one embodiment of the invention, it is preferable that step 106 further includes:In stainless steel pot body 12 Composite surface, after 14 composite surface of heat accumulation plate and 16 composite surface of stainless steel plate smear brazing flux, composite surface to stainless steel pot body 12, The surface injection pressure-air of 16 composite surface of 14 composite surface of heat accumulation plate and stainless steel plate drives brazing flux flowing, so that brazing flux is distributed Uniformly.
In this embodiment, by spraying pressure-air, brazing flux is evenly distributed on each composite surface, can be avoided in pricker The relatively thin region of agent coating forms welding cavity, ensure that the rigidity requirement of welding quality and interior Cooker structure 1;Meanwhile it may be such that 1 the bottom of a pan of interior Cooker structure after the completion of welding is smooth, is easy to use, improves user experience.
As shown in figure 3, in one embodiment of the invention, it is preferable that further included between step 106 and step 102: Step 104, using 16 composite surface of composite surface, 14 composite surface of heat accumulation plate and stainless steel plate of cleaning agent cleaning stainless steel pot body 12 On dirt.
In this embodiment, each composite surface is fully cleaned first before smearing brazing flux, can avoid dirt, such as remaining lubricating oil Brazing flux is mixed into shaping oil, influences brazing flux welding performance;Meanwhile brazing flux is come into full contact with weldment, mutually diffuse to form Welding surface, ensure that the reliability of soldering.
As shown in figure 3, in one embodiment of the invention, it is preferable that further include after step 110:Step 112, Stainless steel pot body 12, heat accumulation plate 14 and stainless steel plate 16 are cooled down, cure brazing flux.
In this embodiment, the interior Cooker structure 1 after sufficiently cool welding, can cure brazing flux, stay between each composite surface, Become stable entirety with each weldment, form finished product, ensure that welding quality, improve the strength and stiffness of interior Cooker structure 1.
In one embodiment of the invention, it is preferable that the trade mark of brazing flux is at least AA-4343, AA-4045 and AA- One kind among 4047.
In this embodiment, intermediate layer of the aluminium alloy heat accumulation plate as composite construction, selects to use aluminium soldering in soldering Brazing flux, be suitable for the performance of weldment.
In one embodiment of the invention, it is preferable that the warm temperature of step 108 is more than or equal to 180 DEG C, and is less than Equal to 240 DEG C.
In this embodiment, it is dry brazing flux, warm temperature at least needs to reach 180 DEG C, while to avoid temperature is excessive from leading 1 each parts surface of Cooker structure produces high-temperature oxide in cause, causes the strength and stiffness of interior pot and welding quality impacted, palpus By warm temperature control within 240 DEG C.
In one embodiment of the invention, it is preferable that the warm temperature of step 108 is more than or equal to 180 DEG C, and is less than Equal to 220 DEG C.
In this embodiment, the warm temperature upper limit of dry brazing flux is further limited to 220 DEG C, it can be ensured that face of weld Do not produce high-temperature oxide.
In one embodiment of the invention, it is preferable that in the soldering in carrying out step 110, stainless steel pot body 12, store The temperature that hot plate 14 and stainless steel plate 16 need to heat is more than or equal to 580 DEG C, and less than or equal to 640 DEG C.
In this embodiment, ensure that weldment is still solid for fusing brazing flux, welding temperature need to be limited to brazing flux Between fusing point and the minimum fusing point of weldment, and the slightly below fusing point of the minimum fusing point of weldment, i.e. aluminium alloy, to avoid welding Part melts, so as to ensure that the physical and chemical performance of weldment is unaffected, ensure that the strength and stiffness of interior Cooker structure 1.Make Fusing point for AA-4343, AA-4045 and AA-4047 of brazing flux is 577 DEG C, and the fusing point of aluminium alloy is 660 DEG C, thus takes heating Temperature is 580 DEG C to 640 DEG C.
In one embodiment of the invention, it is preferable that in the soldering in carrying out step 110, stainless steel pot body 12, store The temperature that hot plate 14 and stainless steel plate 16 need to heat is more than or equal to 580 DEG C, and less than or equal to 620 DEG C.
In this embodiment, brazing temperature is further reduced, the physical and chemical performance of weldment can be fully ensured that from shadow Ring, the strength and stiffness of Cooker structure 1 in guarantee.
To sum up, stainless steel inner container is extensively liked by consumer due to the security of its material, but in actually engineering is heated, The thermal conductivity factor (16.2W (m DEG C)) of stainless steel is low, is used alone and make it that cooking process is slow, influences user experience, the present invention The composite pan bottom of interior Cooker structure 1 is made of three parts:The pure aluminum or aluminum alloy of first layer stainless steel, the second layer, third layer stainless steel (can omit), each bed boundary form comprehensive metallurgical binding state, with compound bed boundary is firm, tensile strength is high, extension property The characteristics of good, since the thermal conductivity factor (227W (m DEG C)) of aluminium is higher and has heat storage function, can put forward the culinary art efficiency of heating surface It is high;Soldering can once be soldered whole weld seams, improve productivity.
In the present invention, term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " peace The term such as dress ", " connected ", " connection ", " fixation " should all 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 directly connected, and can also be indirectly connected by intermediary.It is right For those of ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean to combine at least one reality that the particular features, structures, materials, or characteristics that the embodiment or example describe are contained in the present invention Apply in example or example.In the present specification, schematic expression of the above terms is not necessarily referring to identical embodiment or reality Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more embodiments or example with Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.

Claims (15)

  1. A kind of 1. interior Cooker structure, it is characterised in that including:
    Stainless steel pot body, the cross section of the stainless steel pot body is ellipse, and the stainless steel pot body includes side wall and is located at The bottom wall of the sidewall bottom;
    Heat accumulation plate, positioned at the lower surface of the bottom wall;With
    Stainless steel plate, positioned at the lower surface of the heat accumulation plate;
    The stainless steel pot body, the heat accumulation plate and the stainless steel plate are combined together successively by way of hot pressing.
  2. 2. interior Cooker structure according to claim 1, it is characterised in that
    The side wall and the bottom wall joining place have a circular sliding slopes section, and the outer ledge of the stainless steel plate is folded upward at A supporting section is formed, the supporting section is incorporated into the outer surface of the circular sliding slopes section.
  3. 3. interior Cooker structure according to claim 1, it is characterised in that the heat accumulation plate is aluminium heat accumulation plate or aluminium alloy accumulation of heat Plate.
  4. 4. interior Cooker structure according to claim 1, it is characterised in that the wall thickness of the stainless steel pot body is more than or equal to 0.4mm, and it is less than or equal to 2mm.
  5. 5. interior Cooker structure according to claim 3, it is characterised in that the thickness of the heat accumulation plate is more than or equal to 1mm, and Less than or equal to 3mm.
  6. 6. interior Cooker structure according to claim 1 or 2, it is characterised in that
    The thickness of the stainless steel plate is more than or equal to 0.3mm, and is less than or equal to 1mm.
  7. 7. a kind of electric pressure cooking saucepan, it is characterised in that including the interior Cooker structure as any one of claim 1 to 6.
  8. 8. a kind of stainless steel pot bottom complex method, for processing the interior Cooker structure as any one of claim 1 to 6, its It is characterized in that, the stainless steel pot bottom complex method includes:
    Step 102, by the stainless steel pot body and stainless steel plate drawing and forming;
    Step 106, the composite surface in the stainless steel pot body, the composite surface of the heat accumulation plate and the stainless steel plate is compound Smear brazing flux in face;
    Step 108, the stainless steel pot body after the brazing flux, the heat accumulation plate and the stainless steel plate will be smeared to heat, The brazing flux is dried, removes the moisture of the brazing flux;
    Step 110, dried the stainless steel pot body, the heat accumulation plate and the stainless steel plate are placed on inert atmosphere Under be brazed, the faying face between the stainless steel pot body, the heat accumulation plate and the stainless steel plate is reached metallurgical shape State, and the stainless steel pot body, the heat accumulation plate and the stainless steel plate are heated into pressing successively.
  9. 9. stainless steel pot bottom complex method according to claim 8, it is characterised in that the step 106 further includes:
    Composite surface, the heat accumulation plate composite surface and the stainless steel plate composite surface in the stainless steel pot body smear brazing flux Afterwards, the surface injection of the composite surface to the stainless steel pot body, the heat accumulation plate composite surface and the stainless steel plate composite surface Pressure-air drives the brazing flux flowing, so that the brazing flux is evenly distributed.
  10. 10. stainless steel pot bottom complex method according to claim 9, it is characterised in that in the step 106 and step Further included between 102:
    Step 104, the composite surface, the heat accumulation plate composite surface and the stainless steel of the stainless steel pot body are cleaned using cleaning agent Dirt on bottom plate combined face.
  11. 11. stainless steel pot bottom complex method according to claim 10, it is characterised in that after the step 110 also Including:
    Step 112, the stainless steel pot body, the heat accumulation plate and the stainless steel plate are cooled down, cures the brazing flux.
  12. 12. stainless steel pot bottom complex method according to claim 11, it is characterised in that the heating temperature of the step 108 Degree is more than or equal to 180 DEG C, and less than or equal to 240 DEG C.
  13. 13. stainless steel pot bottom complex method according to claim 11, it is characterised in that the heating temperature of the step 108 Degree is more than or equal to 180 DEG C, and less than or equal to 220 DEG C.
  14. 14. stainless steel pot bottom complex method according to claim 13, it is characterised in that in the step 110 is carried out The soldering when, the temperature that the stainless steel pot body, the heat accumulation plate and the stainless steel plate need to heat is more than or equal to 580 DEG C, and less than or equal to 640 DEG C.
  15. 15. stainless steel pot bottom complex method according to claim 13, it is characterised in that in the step 110 is carried out The soldering when, the temperature that the stainless steel pot body, the heat accumulation plate and the stainless steel plate need to heat is more than or equal to 580 DEG C, and less than or equal to 620 DEG C.
CN201610952944.8A 2016-11-02 2016-11-02 Interior Cooker structure, electric pressure cooking saucepan and stainless steel pot bottom complex method Pending CN108013731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610952944.8A CN108013731A (en) 2016-11-02 2016-11-02 Interior Cooker structure, electric pressure cooking saucepan and stainless steel pot bottom complex method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610952944.8A CN108013731A (en) 2016-11-02 2016-11-02 Interior Cooker structure, electric pressure cooking saucepan and stainless steel pot bottom complex method

Publications (1)

Publication Number Publication Date
CN108013731A true CN108013731A (en) 2018-05-11

Family

ID=62070910

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610952944.8A Pending CN108013731A (en) 2016-11-02 2016-11-02 Interior Cooker structure, electric pressure cooking saucepan and stainless steel pot bottom complex method

Country Status (1)

Country Link
CN (1) CN108013731A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109226570A (en) * 2018-08-16 2019-01-18 中山市金中电热科技有限公司 Electric pressure cooking saucepan stainless steel inner container production technology
CN111802901A (en) * 2020-06-01 2020-10-23 江门市伊尔乐厨卫电器有限公司 Production method of aluminum alloy cookware with rolled and sprayed inner surface
CN111802900A (en) * 2020-06-01 2020-10-23 江门市伊尔乐厨卫电器有限公司 Production method of stainless steel pot with internal and external spraying
CN111802899A (en) * 2020-06-01 2020-10-23 江门市伊尔乐厨卫电器有限公司 Production method of stainless steel pot with rolled and sprayed inner surface

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1251286A (en) * 1999-11-08 2000-04-26 吴振滔 Composite bottom-clad stainless steel cooker and its making method
CN2719162Y (en) * 2004-08-26 2005-08-24 黄杰明 Composite bottom-cladded stainless steel pan
CN2815204Y (en) * 2005-08-03 2006-09-13 江门市浩盈不锈钢制品有限公司 Semi-exposure alluminium bottom-cladding stain-less steel pot
CN102310244A (en) * 2010-07-09 2012-01-11 上海德朗汽车零部件制造有限公司 Brazing flux spray device of brazed radiator
CN202179453U (en) * 2011-07-18 2012-04-04 浙江苏泊尔股份有限公司 Pan body
CN202218805U (en) * 2011-09-29 2012-05-16 杨达开 Inner pot for electric pressure cooker
CN103846615A (en) * 2012-11-30 2014-06-11 佛山市顺德区捷威不锈钢制品有限公司 Manufacturing method for brazed composite pan for induction cooker
CN204449556U (en) * 2015-03-04 2015-07-08 纳百川控股有限公司 Braze welding type radiator automatic spray mechanism
CN204683309U (en) * 2015-06-18 2015-10-07 林慎谦 A kind of seamless stainless steel pot
CN204711369U (en) * 2015-06-25 2015-10-21 山东同创汽车散热装置股份有限公司 A kind of charge air cooler inner fin filling device
CN205322124U (en) * 2015-12-23 2016-06-22 佛山市顺德区美的电热电器制造有限公司 Interior pot and cooking utensil
CN205433276U (en) * 2015-12-01 2016-08-10 佛山市顺德区美的电热电器制造有限公司 Pot body and pan

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1251286A (en) * 1999-11-08 2000-04-26 吴振滔 Composite bottom-clad stainless steel cooker and its making method
CN2719162Y (en) * 2004-08-26 2005-08-24 黄杰明 Composite bottom-cladded stainless steel pan
CN2815204Y (en) * 2005-08-03 2006-09-13 江门市浩盈不锈钢制品有限公司 Semi-exposure alluminium bottom-cladding stain-less steel pot
CN102310244A (en) * 2010-07-09 2012-01-11 上海德朗汽车零部件制造有限公司 Brazing flux spray device of brazed radiator
CN202179453U (en) * 2011-07-18 2012-04-04 浙江苏泊尔股份有限公司 Pan body
CN202218805U (en) * 2011-09-29 2012-05-16 杨达开 Inner pot for electric pressure cooker
CN103846615A (en) * 2012-11-30 2014-06-11 佛山市顺德区捷威不锈钢制品有限公司 Manufacturing method for brazed composite pan for induction cooker
CN204449556U (en) * 2015-03-04 2015-07-08 纳百川控股有限公司 Braze welding type radiator automatic spray mechanism
CN204683309U (en) * 2015-06-18 2015-10-07 林慎谦 A kind of seamless stainless steel pot
CN204711369U (en) * 2015-06-25 2015-10-21 山东同创汽车散热装置股份有限公司 A kind of charge air cooler inner fin filling device
CN205433276U (en) * 2015-12-01 2016-08-10 佛山市顺德区美的电热电器制造有限公司 Pot body and pan
CN205322124U (en) * 2015-12-23 2016-06-22 佛山市顺德区美的电热电器制造有限公司 Interior pot and cooking utensil

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109226570A (en) * 2018-08-16 2019-01-18 中山市金中电热科技有限公司 Electric pressure cooking saucepan stainless steel inner container production technology
CN111802901A (en) * 2020-06-01 2020-10-23 江门市伊尔乐厨卫电器有限公司 Production method of aluminum alloy cookware with rolled and sprayed inner surface
CN111802900A (en) * 2020-06-01 2020-10-23 江门市伊尔乐厨卫电器有限公司 Production method of stainless steel pot with internal and external spraying
CN111802899A (en) * 2020-06-01 2020-10-23 江门市伊尔乐厨卫电器有限公司 Production method of stainless steel pot with rolled and sprayed inner surface

Similar Documents

Publication Publication Date Title
CN108013731A (en) Interior Cooker structure, electric pressure cooking saucepan and stainless steel pot bottom complex method
CN106853548A (en) Welding electrode for carrying out resistance spot welding to the job stacking including aluminium workpiece and steel workpiece
CN205162726U (en) Double -deck composite pot
JP5188797B2 (en) Insulated cooking container
JP5937801B2 (en) Manufacturing method of cooler
CN108013739A (en) Pot, electric pressure cooking saucepan and interior pot pot edge complex method in ellipse
CN103878484A (en) Efficient butt-joint laser welding method for laminated duplex-metal composite material
CN110576263A (en) dissimilar metal laser cladding welding method for copper pipe and steel pipe
JPS611488A (en) Method of manufacturing hot press welding coupling section
CN109248938A (en) A kind of of the same race or heterogeneous material metal composite pipe composite-making process
CN105127534A (en) Brazing connecting method for tungsten-based powder alloy die
CN108397680A (en) A kind of sandwich metallic plate material
WO2009149614A1 (en) Die-casting composite-bottom pot and process for manufacturing the same
CN207940630U (en) A kind of compound pot
CN203471152U (en) Aluminum shell welded through aluminum brazing
CN201012032Y (en) Composite cooking implements
CN210842635U (en) Pan and cooking equipment
PT2170136E (en) Cooking utensil made from cast aluminium compatible with induction heating and method for production
CN111319324A (en) Composite material for cooker, stainless steel cooker and preparation method of stainless steel cooker
CN101438932A (en) Inner pot of electric cooker and manufacturing method thereof
CN212234102U (en) Composite bottom pot
CN208192755U (en) A kind of fume-less cooker tool
CN204879086U (en) Composite pipe
CN207291132U (en) Without glue aluminum cellular board
CN108852012A (en) Interior pot and preparation method thereof and cooking equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180511

RJ01 Rejection of invention patent application after publication