CN201123726Y - Aluminium steel riveting pot bottom of aluminum pan for electromagnetic stove - Google Patents

Abstract

The utility model discloses an aluminium steel riveting pot bottom of an aluminium pot for an induction cooker including an aluminium pot bottom and a stainless steel plate, wherein the aluminium pot bottoms includes a plurality of protuberances which are pre-formed and bulged downwardly and the stainless steel plate includes mating holes corresponding to the protuberances of the pot bottom, the stainless steel plate toward the face of the aluminium pot bottom is provided with a plurality of lug bosses corresponding to the protuberances of the aluminium pot bottom, the mating holes are arranged on the lug bosses, the diameters of the mating holes are less than the diameters of the lug bosses, the outer side of the aluminium pot bottom comprises a curved plane annular cavity corresponding to an outer edge of the lug bosses of the stainless steel plate which is capable of holding the lug bosses, the protuberances of the pot bottom are to form a riveting end enclosure by extruding and crossing through the mating holes of the protuberances on the stainless steel plate, wherein the diameter of the riveting end enclosure is more than the inside diameter of the mating holes. Such the end enclosure combined by the pot bottom and the stainless steel plate is used for clamping the lug bosses of the steel by an upper and a lower two steps, the combination of the aluminium pot bottom and the stainless steel plate are reinforced further to improve the quality and service life of the composite pot bottom, at the same time, the aluminium steel riveting pot bottom of an aluminium pot keeps the characteristics of simple processing and low cost.

Description

The aluminum steel riveted the bottom of a pan of the aluminium matter pot that electromagnetic stove is used

Technical field

The utility model relates to the aluminium matter pot that a kind of electromagnetic stove is used, and relates in particular to the aluminum steel riveted the bottom of a pan of the aluminium matter pot that a kind of electromagnetic stove uses.

Background technology

In the application that adapts to electromagnetic stove, sell widely on the market various have at the bottom of the aluminum steel compound pot, as the aluminium matter pot of tableware pot.Firm for corrosion resistant plate is combined with the bottom of a pan, the hole on the corrosion resistant plate is except circular punching commonly used, and people also adopt so-called tubaeform punching and straight pointed hole flanging.For corrosion resistant plate, be suitable for injection moulding formula aluminium matter pot with tubaeform punching.The bottom of a pan of this pot need not the preprocessing projection, and its flat the bottom of a pan is through adding hot extrusion and combining with corrosion resistant plate.In their cohesive process, the sharp-pointed inclined side of the tubaeform punching of corrosion resistant plate thrusts the bottom of a pan of pot and obtains relative fixed.For corrosion resistant plate with straight pointed hole flanging, fixing mode is to form a plurality of projectioies in advance at pot bottom part in the bottom of a pan for it, and rout up the hole flanging that a plurality of and described projection matches in the surperficial punching press of corrosion resistant plate, corrosion resistant plate is fitted on the aluminium matter the bottom of a pan, the hole flanging of corrosion resistant plate is fastened on the projection in the bottom of a pan, the flange of hole flanging week side is inserted in the bottom in the bottom of a pan, and bulging deformation is coated on the arcwall face of flange bottom again, and corrosion resistant plate is composite and fixed on the aluminium matter the bottom of a pan.

Has compact conformation at the bottom of above-mentioned two kinds of compound pot, processing is simple, low cost and other advantages, but because it is to make the flange on the hole flanging be inserted into the bottom of a pan by hot extrusion or cold extrusion, and the bulging deformation part that makes the bottom of a pan in extrusion process is coated on the arcwall face of flange bottom, it is little and be difficult to the very regular unbalance stress that causes because of contact-making surface in conjunction with effect, can cause the inconsistent of the aluminium matter the bottom of a pan and corrosion resistant plate bond strength, and all there is sharp-pointed sharp edges in the corrosion resistant plate of tubaeform punching and straight pointed hole flanging, can produce the invisible vertical microcrack of naked eyes in the bottom of a pan under the excessive situation of underheat and processing.These deficiencies tend to influence total service life of tableware pot.

Summary of the invention

The purpose of this utility model be provide at above-mentioned the deficiencies in the prior art a kind of with the aluminium matter the bottom of a pan and corrosion resistant plate in conjunction with the aluminum steel riveted the bottom of a pan of more firm, density is more even, quality is more stable aluminium matter pot.

For solving the problems of the technologies described above, basic design of the present utility model is: the aluminum steel riveted the bottom of a pan of the aluminium matter pot that a kind of electromagnetic stove is used, comprise that the aluminium matter the bottom of a pan 1 and of outstanding projection downwards with a plurality of moulding in advance has the corrosion resistant plate with the protruding corresponding mating holes in the described the bottom of a pan, it is characterized in that, the one side of described corrosion resistant plate towards the aluminium matter the bottom of a pan is provided with the corresponding boss of a plurality of and aluminium matter the bottom of a pan projection, mating holes is opened in boss and its diameter diameter less than boss, the outside in the aluminium matter the bottom of a pan has corresponding with corrosion resistant plate boss outer rim and can hold the curved surface shaped ring cavity of boss, the mating holes that described the bottom of a pan projection is passed the corrosion resistant plate convex platform by extruding forms the riveted type end socket of diameter greater than the mating holes internal diameter, is convenient to increase level and smooth contact-making surface between the corrosion resistant plate boss and the aluminium matter the bottom of a pan.The outside in the aluminium matter the bottom of a pan has corresponding with corrosion resistant plate boss outer rim and can hold the curved ring cavity of boss, so that the further combination in reinforced stainless steel plate and the aluminium matter the bottom of a pan.

The radius of curvature of the radius of curvature of curved ring cavity and corrosion resistant plate boss outer rim should be consistent as far as possible, in projection with have ready conditions after mating holes is nested when the projection of passing mating holes pushed formation flange coating corrosion resistant plate edge, can allow on the bottom of a pan curved ring cavity external profile diameter more than or equal to corrosion resistant plate boss external profile diameter.

In addition, on the corrosion resistant plate diameter of mating holes more than or equal on the aluminium matter the bottom of a pan projection diameter.Because when not having the condition of heat treated, the diameter of mating holes need so just can make projection pass mating holes smoothly more than or equal to the diameter of projection on the aluminium matter the bottom of a pan on the corrosion resistant plate, forms nested combination.

In order to increase the contact-making surface in the corrosion resistant plate boss and the aluminium matter the bottom of a pan, make in conjunction with back Density Distribution and ability to bear more even, the radius of curvature of the bottom of a pan convex curvature radius and corrosion resistant plate boss outer rim should keep close, the more little contact-making surface of error is big more, in conjunction with must be just firm more, therefore form seamlessly transitting of the curved ring cavity of corrosion resistant plate boss and aluminium matter the bottom of a pan mating surface, more help improving this non-deformability that has an aluminium matter pot at the bottom of the compound pot and be heated evenly degree.

The utility model is owing to adopted technique scheme, solved also exist at the bottom of the compound pot in the prior art cause unbalance stress or local excessive problem because of contact-making surface is irregular, further reinforced the combination of the aluminium matter the bottom of a pan and corrosion resistant plate, capability and performance and service life at the bottom of this compound pot have been improved, still keep simultaneously the characteristics that processing is simple, cost is low, promoted applying of this technology.

Description of drawings

Below in conjunction with drawings and embodiments the utility model is described in further detail:

Fig. 1 is one of embodiment of the present utility model, and preceding profile is pushed behind the sleeve mutually in basic relative engagement mode in the projection in the expression aluminium matter the bottom of a pan and the hole of corrosion resistant plate;

Fig. 2 is another embodiment of the present utility model, and preceding profile is pushed behind the sleeve mutually with loose relative mode in the projection in the expression aluminium matter the bottom of a pan and the hole of corrosion resistant plate;

Fig. 3 for Fig. 1 and Tu by projection and hole mutually the aluminium matter the bottom of a pan of sleeve and corrosion resistant plate through pushing the profile that combines.

The specific embodiment

See also Fig. 1 and Fig. 3, there is shown first embodiment of the present utility model, the aluminum steel riveted the bottom of a pan of the aluminium matter pot that electromagnetic stove is used comprises the bottom of a pan 1 and a corrosion resistant plate 2 of aluminium matter pot (being formed by aluminium die casting), corrosion resistant plate 2 is being provided with a plurality of boss 21 on the one side in the aluminium matter the bottom of a pan 1, each boss 21 is provided with a mating holes 22, the bottom of a pan 1 has with the mating holes 22 corresponding moulding in advance of corrosion resistant plate 1, its length can be greater than the outstanding downwards projection 11 of the height of corrosion resistant plate convex platform 21 and corresponding with boss 21 outer rims of corrosion resistant plate and can hold the curved surface shaped ring cavity 12 of boss 21, and the latter's internal diameter equals corrosion resistant plate 2 boss 21 external profile diameters substantially.Simultaneously, be opened in the diameter that mating holes 22 diameters on corrosion resistant plate 2 boss equal boss 21.So, aluminum pot is put into heating furnace to be heated, the operation that one heating is just arranged, aluminum pot, particularly the bottom of a pan is heated to a suitable temperature, this procedure purpose is to increase flowability and the morphotropism of the bottom of a pan aluminium when extruding, also plays simultaneously in conjunction with back Density Distribution and the more uniform effect of ability to bear.Form the riveted type end socket 13 of diameter through the bottom of a pan of heating by the mating holes 22 that relative extruding with corrosion resistant plate is passed on the corrosion resistant plate boss described the bottom of a pan projection 11 like this greater than mating holes 22 internal diameters.In addition, the inner bottom part of corrosion resistant plate 2 boss 21 23 is that circular arc seamlessly transits with end socket 13 mating surfaces 14 in the aluminium matter the bottom of a pan 1, and arc contacts by riveted type is compound so that it is with the aluminium matter the bottom of a pan 1.Such riveted type end socket 13 can by its up and down two stages the boss one by one 21 of corrosion resistant plate 2 is clamped, so in conjunction with quite securely, but also, can not cause the hot extrusion crack because of there is not sharp-pointed sharp mating holes edge in corrosion resistant plate.

See also Fig. 2 and Fig. 3, there is shown second embodiment of the present utility model, its composition is consistent with embodiment one, just structurally the internal diameter of the bottom of a pan 1 top-surface camber shape ring cavity 12 can also can make the diameter of the diameter of the mating holes 22 on the corrosion resistant plate 2 greater than projection 11 on the aluminium matter the bottom of a pan 1 greater than the external profile diameter of corrosion resistant plate 2 boss 21.

Claims (4)

1. the aluminum steel riveted the bottom of a pan of the aluminium matter pot used of an electromagnetic stove, comprise that the aluminium matter the bottom of a pan (1) and of outstanding projection (11) downwards with a plurality of moulding in advance has the corrosion resistant plate (2) with the protruding corresponding mating holes (22) of the described the bottom of a pan (1), it is characterized in that, the one side of described corrosion resistant plate (2) towards the aluminium matter the bottom of a pan (1) is provided with a plurality of and the aluminium matter the bottom of a pan (1) projection (11) corresponding boss (21), mating holes (22) be opened on the boss and its diameter less than the diameter of boss (21), the outside in the aluminium matter the bottom of a pan (1) has corresponding with boss (21) outer rim of corrosion resistant plate (2) and can hold the curved surface shaped ring cavity (12) of boss (21), and the mating holes (22) that described the bottom of a pan projection (11) is passed corrosion resistant plate (2) convex platform by extruding forms the riveted type end socket (13) of diameter greater than mating holes (22) internal diameter.

2. the aluminum steel riveted the bottom of a pan of aluminium matter pot as claimed in claim 1 is characterized in that, the internal diameter of the described the bottom of a pan (1) top-surface camber shape ring cavity (12) is more than or equal to corrosion resistant plate (2) boss (21) external profile diameter.

3. the aluminum steel riveted the bottom of a pan of aluminium matter pot as claimed in claim 1 is characterized in that, described corrosion resistant plate (2) is gone up the diameter of mating holes (22) and gone up the diameter of protruding (11) more than or equal to the aluminium matter the bottom of a pan (1).

4. the aluminum steel riveted the bottom of a pan of aluminium matter pot as claimed in claim 1 is characterized in that, the inner bottom part (23) of described corrosion resistant plate (2) boss (21) is that circular arc seamlessly transits with end socket (13) mating surface (14) in the aluminium matter the bottom of a pan (1).

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