CN100473311C - Cast aluminium cooking utensil for electromagnetic oven and making process thereof - Google Patents
Cast aluminium cooking utensil for electromagnetic oven and making process thereof Download PDFInfo
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- CN100473311C CN100473311C CNB2006100265544A CN200610026554A CN100473311C CN 100473311 C CN100473311 C CN 100473311C CN B2006100265544 A CNB2006100265544 A CN B2006100265544A CN 200610026554 A CN200610026554 A CN 200610026554A CN 100473311 C CN100473311 C CN 100473311C
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Abstract
The present invention provides one kind of cast aluminum cooking utensil for electromagnetic oven and its making process, and relates to daily used article technology. The cast aluminum cooking utensil includes one open-mouthed cooking utensil of aluminum material and one heating chassis with metal plate made of magnetically conducting material. The metal plate has through holes with flanges extending to the outer surface of the chassis, and is embedded inside the chassis. The making process of the cast aluminum cooking utensil includes the following steps: preparing metal plate, preparing mold, casting molten aluminum and demolding.
Description
Technical field
The present invention relates to the articles for daily use technical field, especially relate to a kind of cast aluminium cooker and manufacture method thereof that can be used for electromagnetic oven.
Background technology
The cast aluminium cooker can one-shot forming because its manufacture craft is simple, thereby is produced in large quantities and use.Can produce the pot shape that to produce with cold punching technology by casting technique, be easy to accomplish end thick-walled and thin, be more suitable in culinary art.Casting technique is very suitable for producing the cooker of special-shaped cooker and some handles, handle seat and pot body one, and the pattern of pot shape is more various.
Existing common cast aluminium cooker all can't be applicable to electromagnetic oven, and some cast aluminium cooker that can be used for electromagnetic oven all is to adopt at the good cooker compound last layer in the bottom stainless iron plate with holes of casting.For example, Chinese patent literature discloses a kind of Flat bottom container (application number: CN02250780.9), be made up of the nonferromugnetic material Flat bottom container and the punch of the ferrimagnet that is placed in the container intracavity bottom.This cooker is the bottom that punch directly is fixed on Flat bottom container, its production process complexity, and cost is higher.But,, thereby cause the connection part of punch and container bottom to produce the gap because the coefficient of expansion difference of different materials in heating process, can produce different deformation.On the other hand, owing to elements such as the contained silicon of the employed material of cast aluminium cooker, copper are very high, the stainless iron plate of the cast aluminium cooker bottom of the compound stainless iron plate in this bottom is not strong with the adhesion of pot body, and in use stainless iron plate may come off from the bottom of pot.
The somebody has applied for a kind of cooking appliance (application number: patent CN93109890.4) with heated base, this cooking appliance comprises being used for heating and particularly is used for the heated base of eddy-current heating, described bottom outwards comprises metallic plate and at least one sheet metal of being furnished with perforate of at least one good heat conductive from the lining, described sheet metal is embedded on the metallic plate, so that perforate is loaded by the metal on the metallic plate.And above-mentioned perforate has 5～20% double-deck surface of sheet metal total surface.Such scheme is that sheet metal is embedded in the sheet metal of bottom by impact style.But still have following defective: 1. be pressed into the sheet metal of perforate by force by impact style, complex manufacturing technology causes scrapping of product easily in making work, and yield rate is low.2. though the deformation difference that through hole can reduce to be produced because the coefficient of expansion is different is set on sheet metal, prevents to come off; But because sheet metal only has single face to embed, in use still can produce the gap, can not thoroughly address the above problem.3. the production cost height causes stress to be concentrated easily, and service life is short, is difficult to apply.
Summary of the invention
The objective of the invention is at the problems referred to above, provide a kind of structure firm, it is firm to cooperate, and whole sheet metal embeds in the chassis substantially, and the two sides of sheet metal is identical material, and the influence of expanded by heating is little, the long-lived cast aluminium cooker that can be used for electromagnetic oven; Solved the existing in prior technology sheet metal cooperate with the bottom not firm because the difference of the coefficient of expansion causes coming off easily, the technical problem that service life is short etc.
Another object of the present invention is at the problems referred to above, and a kind of processing and fabricating of being convenient to is provided, and technology is simple, yield rate height, the cast aluminium cooker manufacture method that can be used for electromagnetic oven of low production cost; Solved existing in prior technology and sheet metal has been embedded by force later in cooker machine-shaping again, processing and manufacturing difficulty is big, causes easily and scraps, the technical problem that production cost is more high.
For achieving the above object, the present invention has adopted following technical proposal: the cast aluminium cooker that originally can be used for electromagnetic oven, comprise a uncovered body of making by aluminium, be provided with a chassis that is used to heat on body, the chassis is provided with the sheet metal that adopts permeability magnetic material to make, and has several through holes on sheet metal, it is characterized in that, described sheet metal is embedded in the described chassis, have flange at the through hole edge of described sheet metal, and this flange extends to the outer surface on chassis.
The present invention is wrapped in sheet metal in the chassis substantially, has only the flange at sheet metal through hole edge to be exposed to the outer surface on chassis, and concordant in the bottom surface on chassis, and magnetic flux is passed through from the end face of these flange, heats.Because the material that the two sides contacted of sheet metal is identical, has identical thermal coefficient of expansion, in heating process, produce identical deformation, can not cause the unstable problem of contact.Successfully solved sheet metal has been wrapped in the problem that magnetic conduction can't be carried out in inside, chassis by flange is set at the through hole edge, improved the intensity of whole device, increased the service life.The present invention is suitable for the cast aluminium cooker, as die casting aluminium cooker and gravitational casting aluminium cookware; Add the one-shot forming in man-hour, need not to be pressed into by force sheet metal, the yield rate height.Sheet metal used in the present invention can be the stainless steel substrates that is magnetic, and also can be various carbon steel and the alloy-steel sheets of being magnetic.
In the above-mentioned cast aluminium cooker that can be used for electromagnetic oven, described through hole be shaped as in circle, ellipse, triangle, square, the rectangle one or several.The shape of through hole and quantity can be provided with as required.
In the above-mentioned cast aluminium cooker that can be used for electromagnetic oven, also be provided with several tapping holes on the described sheet metal.Except the through hole that has flange, also have some on the sheet metal among the present invention not with the tapping hole of flange.These tapping holes are to be convenient to that aluminium water can flow to another side from the one side of sheet metal in the casting process of cast aluminium cooker, make the two sides of sheet metal all cast full aluminium water, and the aluminium on sheet metal two sides links together by these holes, more firmly difficult drop-off.Certainly, the shape of the tapping hole here also can be one or several in circle, ellipse, triangle, square, the rectangle.
In the above-mentioned cast aluminium cooker that can be used for electromagnetic oven, the edge of described sheet metal is provided with some equally distributed breach with sheet metal zoning territory, and each regional root fuses.
In order to reduce cast aluminium cooker bottom because of the different stress that produce of the coefficient of expansion of different materials in heating process, prevent that the bottom of causing thus from concaving or to outer lug, the present invention is divided into several zones with sheet metal, only be connected to each other together, thereby the stress that has reduced the bottom is effectively concentrated at the sheet metal middle part.
For the ease of flowing of aluminium water in the casting cycle, be convenient to the making of sheet metal flange simultaneously, in the above-mentioned cast aluminium cooker that can be used for electromagnetic oven, the angle that described flange becomes with the plane at sheet metal place is 45 °～135 °.
In the above-mentioned cast aluminium cooker that can be used for electromagnetic oven, the height of described flange is 0.2mm～5.0mm; The thickness of described sheet metal is 0.2mm～5.0mm.
For the ease of fixing to sheet metal in casting cycle, prevent that sheet metal is flushed away when aluminium water injects, in the above-mentioned cast aluminium cooker that can be used for electromagnetic oven, described sheet metal center is provided with a boss, and boss is provided with fixing hole.Inserting the aluminium pin in through hole is fixed up its sheet metal.
Above-mentioned cooker is made by following method, can be used for the cast aluminium cooker manufacture method of electromagnetic oven, it is characterized in that, comprise the steps: that a. prepares sheet metal: make sheet metal with permeability magnetic material, on sheet metal, offer some through holes, flange is set at the through hole edge; B. prepare mould: the die cavity chassis that the sheet metal for preparing is fixed on the cooker mould; C. cast aluminum water: in die cavity, pour aluminium water into, make aluminium water fill with whole die cavity, be full of aluminium water on the two sides of sheet metal; D. demoulding cleaning: after the moulding to be cooled, slough mould, and cooker surface is cleared up or turning, the end face of flange is flushed with the bottom surface on cooker chassis.
The present invention adopts the mode of direct pouring, sheet metal is cast in the chassis of cooker, and carries out magnetic conduction by the flange that exposes with undersurface of bottom disc.Operation is simple, and it is very convenient, with low cost make, can one-shot forming, and not high to the requirement of mould yet.If flange does not expose the bottom surface, can cause magnetic screen, can't on electromagnetic oven, heat; For this reason, the chassis of the cooker that casting is good will be exposed with the method for polishing cleaning or the turning end face with the flange vertically dug on the sheet metal, so that magnetic induction.
After sheet metal was put into casting mould, the end face of flange must be close to the bottom of mould, and was firmly fixed, and was flushed away when aluminium water injects to prevent sheet metal.In the above-mentioned cast aluminium cooker manufacture method that can be used for electromagnetic oven, in step b, sheet metal is fixed up by applying magnetic force on the die cavity chassis.Because sheet metal is made by permeability magnetic material, therefore, by applying the bottom that magnetic force just can be fixed in mould.The magnetic force here can be to be produced by permanent magnet or electromagnet.
As another kind of fixed solution, in the above-mentioned cast aluminium cooker manufacture method that can be used for electromagnetic oven, in step b, in the central boss of sheet metal, insert steady pin, by steady pin sheet metal is fixed on the die cavity chassis.
Compared with prior art, can be used for the cast aluminium cooker of electromagnetic oven and the advantage of manufacture method thereof is:
1. because the integral body of sheet metal embeds the chassis substantially, the material of two sides contact is identical, is subjected to the influence of dilatancy little, and structure is firm, difficult drop-off, long service life.
2. adopt the mode one-shot forming of casting, the two sides of sheet metal can both be full of aluminium water swimmingly during casting, and processing and fabricating is convenient, and operation is simple, the production efficiency height.
3. the stress that has reduced the bottom is effectively concentrated, and makes the bottom smooth after casting, can not cause rough phenomenon; The magnetic conductivity of casting processing mode and sheet metal is reasonably merged.
Description of drawings
Fig. 1 is the structural representation of looking up of cooker provided by the invention.
Fig. 2 is the sectional structure schematic diagram of cooker provided by the invention.
Fig. 3 is the structural representation of sheet metal in the cooker provided by the invention.
Fig. 4 is along the sectional structure schematic diagram along the line of B-B among Fig. 3.
Among the figure, body 1, chassis 2, sheet metal 3, regional 3a, through hole 4, flange 4a, tapping hole 5, breach 6, boss 7, fixing hole 8.
The specific embodiment
Embodiment 1:
As depicted in figs. 1 and 2, can be used for the cast aluminium cooker of electromagnetic oven, the uncovered body of making by aluminium 1, adopt discoid sheet metal 3 that permeability magnetic material makes, be arranged on through hole 4 on the sheet metal 3 etc. and form.
As shown in Figure 1, be provided with a chassis that is used to heat 2 on body 1, chassis 2 is provided with sheet metal 3, and sheet metal 3 pottings are in chassis 2.Have several through holes 4 on sheet metal 3, through hole 4 is arranged equably.Through hole 4 be shaped as circle or ellipse or strip.Through hole 4 is set can be arranged on sheet metal 3 in the chassis 2 easily, makes both cooperations more firm.
As shown in Figure 2, have flange 4a at through hole 4 edges of sheet metal 3, and this flange 4a extends to the outer surface on chassis 2.The plane at flange 4a and sheet metal 3 places is provided with at an angle of 90.Because the major part of whole sheet metal 3 is wrapped in the chassis 2, can realize magnetic conduction by flange 4a, and whole cooker is heated, and makes it to be applicable to electromagnetic oven.Also be provided with several on the sheet metal 3 not with the tapping hole 5 of flange 4a.These tapping holes 5 are to be convenient to that aluminium water can flow to another side from the one side of sheet metal 3 in the casting process of cast aluminium cooker, make the two sides of sheet metal 3 all cast full aluminium water, and the aluminium on sheet metal 3 two sides links together by these holes, more firmly difficult drop-off.
As shown in Figure 3 and Figure 4, the edge of sheet metal 3 is provided with eight and equally distributed sheet metal 3 is divided into the breach 6 of nine sector region 3a, and the root of each regional 3a fuses.In this way, can reduce cast aluminium cooker bottom and produce stress, prevent that the bottom of causing thus from concaving or to outer lug because of the coefficient of expansion of different materials in heating process is different.In the present invention, the height of flange 4a is 1.0mm, and the thickness of sheet metal 3 is 0.5mm.For the ease of fixing to sheet metal 3 in casting cycle, be provided with a boss 7 at sheet metal 3 centers, boss 7 is provided with fixing hole 8.
The above-mentioned cast aluminium cooker that can be used for electromagnetic oven is made by following method:
A. prepare sheet metal 3: make sheet metal 3 with permeability magnetic material, on sheet metal 3, offer some through holes 4, flange 4a is set at through hole 4 edges.The permeability magnetic material here can be the stainless steel substrates that is magnetic, and also can be various carbon steel and the alloy-steel sheets of being magnetic.The through hole 4 here can form by the mode of punching press.The flange 4a at through hole 4 edges can with sheet metal 3 integrated setting, also can be connected up by modes such as welding.
B. prepare mould: the die cavity chassis that the sheet metal 3 for preparing is fixed on the cooker mould.Because sheet metal 3 centers are provided with a boss 7, steady pin can be inserted in the fixing hole 8 of boss, by steady pin sheet metal 3 are fixed on the die cavity chassis.
C. cast aluminum water: in die cavity, pour aluminium water into, make aluminium water fill with whole die cavity, be full of aluminium water on the two sides of sheet metal 3.
D. demoulding cleaning: after the moulding to be cooled, slough mould, and cooker surface is carried out turning processing, the end face of flange 4a is flushed with the bottom surface on cooker chassis 2, be beneficial to magnetic conduction.Certainly, if the placement of the position of sheet metal 3 and die cavity is reasonable, the end face of flange 4a is exposed to chassis 2 substantially after casting is finished, and carries out turning processing with regard to not needing like this, directly carries out removing surface and gets final product.
Casting process process among the present invention is a known technology, and this paper does not do and gives unnecessary details.
Embodiment 2: in the present embodiment, boss and locating hole are not set on the sheet metal 3, by applying magnetic force at the permanent magnet on die cavity chassis or electromagnet sheet metal 3 are fixed up.All the other all with embodiment 1 roughly the same, this paper does not do and gives unnecessary details.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as body 1, chassis 2, sheet metal 3, regional 3a, through hole 4, flange 4a, tapping hole 5, breach 6, boss 7, fixing hole 8 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (3)
1, a kind of cast aluminium cooker manufacture method that can be used for electromagnetic oven, it is characterized in that, comprise the steps: that a prepares sheet metal (3): make sheet metal (3) with permeability magnetic material, on sheet metal (3), offer some through holes (4), flange (4a) is set at through hole (4) edge; B prepares mould: the die cavity chassis that the sheet metal (3) for preparing is fixed on the cooker mould; C cast aluminum water: in die cavity, pour aluminium water into, make aluminium water fill with whole die cavity, be full of aluminium water on the two sides of sheet metal (3); D demoulding cleaning: after the moulding to be cooled, slough mould, and cooker surface is cleared up or turning, the end face of flange (4a) is flushed with the bottom surface of cooker chassis (2); In step b, sheet metal (3) is fixed up by apply magnetic force on the die cavity chassis; And in step b, in the boss (7) at the center of sheet metal (3), insert steady pin, sheet metal (3) is fixed on the die cavity chassis by steady pin; Described steady pin is made by aluminium.
2, the cast aluminium cooker manufacture method that can be used for electromagnetic oven according to claim 1 is characterized in that, in above-mentioned steps b, magnetic force is to be produced by permanent magnet or electromagnet.
3, the cast aluminium cooker manufacture method that can be used for electromagnetic oven according to claim 1 is characterized in that, in above-mentioned steps a, described through hole (4) forms by impact style.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100265544A CN100473311C (en) | 2006-05-15 | 2006-05-15 | Cast aluminium cooking utensil for electromagnetic oven and making process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100265544A CN100473311C (en) | 2006-05-15 | 2006-05-15 | Cast aluminium cooking utensil for electromagnetic oven and making process thereof |
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| Publication Number | Publication Date |
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| CN1846577A CN1846577A (en) | 2006-10-18 |
| CN100473311C true CN100473311C (en) | 2009-04-01 |
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| CNB2006100265544A Active CN100473311C (en) | 2006-05-15 | 2006-05-15 | Cast aluminium cooking utensil for electromagnetic oven and making process thereof |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2919168B1 (en) * | 2007-07-25 | 2009-09-11 | Seb Sa | CULINARY ARTICLE IN ALUMINUM CAST COMPATIBLE WITH INDUCTION HEATING AND METHOD OF MANUFACTURE. |
| CN101352753B (en) * | 2007-07-26 | 2010-04-07 | 厉正 | Cast die tool of multi-bottom pan and technique for producing multi-bottom pan using the die |
| FR2919484B1 (en) * | 2007-08-01 | 2014-02-07 | Seb Sa | CULINARY ARTICLE WITH SLOTTED ANTI-DEFORMATION BREASTS. |
| CN101554287B (en) * | 2008-05-27 | 2010-12-29 | 厦门安联企业有限公司 | Process technology of boiler for induction cooker |
| CN201414675Y (en) * | 2008-06-27 | 2010-03-03 | 舒岳光 | Concavo-convex magnet field conduction pot |
| WO2009156783A1 (en) * | 2008-06-27 | 2009-12-30 | Shu yue guang | A magnetically permeable composite pan |
| CN102151066A (en) * | 2010-12-30 | 2011-08-17 | 东莞宜安科技股份有限公司 | Cookware for electromagnetic oven as well as dedicated fixture and producing process thereof |
| CN103181717A (en) * | 2011-12-27 | 2013-07-03 | 李婡正 | Manufacturing device and manufacturing method for cooking container for electromagnetic oven |
| CN103181718A (en) * | 2011-12-30 | 2013-07-03 | 胡程韶 | Aluminum boiler with compound bottom and manufacturing method thereof |
| CN103829770A (en) * | 2012-11-20 | 2014-06-04 | 浙江中信厨具有限公司 | Aluminum pot with compound bottom |
| CN103876637A (en) * | 2012-12-21 | 2014-06-25 | 浙江中信厨具有限公司 | Manufacturing method of Aluminum pot with magnetically permeable bottom |
| CN103330474B (en) * | 2013-07-02 | 2016-03-02 | 郑春园 | A kind of magnetic-conductive cooker and process for making thereof |
| CN105982559B (en) * | 2015-02-13 | 2018-09-04 | 佛山市顺德区美的电热电器制造有限公司 | Cookware and electromagnetic heating cooking utensil for electromagnetic heating utensil |
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- 2006-05-15 CN CNB2006100265544A patent/CN100473311C/en active Active
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| CN1846577A (en) | 2006-10-18 |
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