CN201418674Y

CN201418674Y - Composite pan bottom

Info

Publication number: CN201418674Y
Application number: CN2009201221398U
Authority: CN
Inventors: 涂序才
Original assignee: 戴桂芳
Priority date: 2009-06-08
Filing date: 2009-06-08
Publication date: 2010-03-10
Anticipated expiration: 2019-06-08

Abstract

A composite pan bottom comprises a pan body bottom and a bottom doubling piece, wherein the bottom doubling piece is fixed on the pan body bottom in a covering manner. The composite pan bottom is characterized in that flow marks are formed on the opposite surfaces of the pot body bottom and the bottom doubling piece in a matched manner, and then the bottom doubling piece is composited on the pot body bottom through the flow mark structure by the sequential use of hot extrusion and cooling, so as to greatly improve the composition fastness of both, achieve high production efficiency and reducethe production cost.

Description

At the bottom of a kind of compound pot

Technical field

The utility model relates to a kind of technical field of the multiple end of heat of alusil alloy compression casting pan.

Background technology

Traditional aluminium alloy stretches pot and alusil alloy compression casting pan for the ease of using on electromagnetic oven, usually need be on bottom of pot body be multiple the compound bottom sheet of energy magnetic conducting and heating, thereby reach the effect of multi-functional use.Traditional technological means of the multiple end has at present:

1. adopt the riveted joint cold-press process to carry out the multiple end, promptly on the pot body, make the structure of column, make cavernous structure on the compound bottom sheet, adopt the technology of colding pressing, compound bottom sheet and pot body consolidation.The shortcoming of this technology is that the thermal efficiency is low, forms the space because cause easily between compound bottom sheet and the aluminum pot, and the heat conduction is descended.

2. employing hot-pressing technique, directly compound with carrying out HTHP after pot body and the multiple base plate heating, but need serve as adhesive at a kind of metal of adding between pot body and the multiple base plate, and the compound time is long especially, generally need 5min～30min, production efficiency is low, the cost height.

3. adopt the strike-on technology, the strike-on production technology in the similar Stainless steel pressure cooking-vessel the bottom of a pan, adopt the above friction press of 1000T to feel secure, its compound principle is to weld after utilizing the friction press instant impact to cause the material faying face to produce high temperature, belongs to the friction welding technology category.Also have, its friction press equipment price costliness, the standing charges height, every equipment investment is all more than 1,000,000 yuan, and annual maintenance cost also needs more than the hundreds of thousands unit, and some little factories do not have strength, are difficult to realize producing in batches.

These technological means of multiple end are not very desirable, need do further improvement.

The utility model content

At the bottom of the compound pot that primary technical problem to be solved in the utility model provides a kind of practicality rational in infrastructure, manufactures easily, production efficiency is high.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: at the bottom of a kind of compound pot, it includes bottom of pot body and answers the compound bottom sheet of using at the end, compound bottom sheet covers and is fixed on the bottom of pot body, it is characterized in that bottom of pot body and compound bottom sheet apparent surface form the lines of cooperation respectively, by first hot extrusion cooling means again, compound bottom sheet is compounded on the bottom of pot body by texture structure.

Compound bottom sheet produces the atom Diffusion Welding with the crystal boundary face that combines in the bottom of a pan and compound for one under the interaction of heat and extruding force.

Described lines adopts the wire drawing lines.

Described lines is to adopt 80～100 purpose abrasive bands wire drawing to be carried out on its surface and the vertical bar lines that forms, is distributed in the steel disc of whole compound usefulness and needs on the compound surface, the bottom of a pan.

And lines is parallel lines, is distributed in the border circular areas.

Manufacture method at the bottom of a kind of compound pot, it is characterized in that: the composite surface of bottom of pot body produces lines, accordingly, the composite surface of compound bottom sheet also produces the cooperation lines, the heating of pot body at least more than 400 ℃, more than 600 ℃, is fitted according to lines compound bottom sheet and bottom of pot body the compound bottom sheet heating at least then with aspect relative engagement mode, adopt hot extrusion mode consolidation, cooling gets final product.

The technical scheme that described another technical problem adopted is: need to heat on the hot extrusion composite die, usually the temperature of mould should be controlled between 200～250 ℃, keeping pot and composite sheet not to cool off too soon before firmly compound, so that influence bond strength between the two.

Described its specific pressure of hot extrusion mode is controlled at 50～80Kg/mm ²Scope, 2～10 seconds time, the time is short more good more.

The nature cooling is adopted in described cooling.

Compared with prior art, advantage of the present utility model is: the pot body is before heat is compound, the composite surface of pot body need carry out drawing pattern to be handled, and the composite surface of compound bottom sheet also needs to carry out drawing pattern to be handled, and both are before heat is compound, after its silking is placed in the same way, diffusion reaction takes place in the molecule of two kinds of metals mutually under HTHP, thereby fused for one on the crystal boundary face of two kinds of metals, has increased both compound firmness so greatly, and the production efficiency height, reduced production cost.

Description of drawings

Fig. 1 is the pot body front view at the multiple end;

Fig. 2 is the pot body cutaway view at the multiple end;

Fig. 3 is the front view of compound bottom sheet;

Fig. 4 is the cutaway view of compound bottom sheet;

Fig. 5 is the pot body front view at the multiple end;

Fig. 6 is the pot body cutaway view at the multiple end.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

At the bottom of a kind of compound pot, composite surface at the bottom of pot body 1 of aluminium matter produces wire drawing lines 1.1, lines 1.1 adopts the vertical bar drawing pattern, the vertical bar lines that the wire drawing lines is finished on the wire drawing machine with 80～100 purpose abrasive bands, lines is parallel to each other, and be distributed in border circular areas, accordingly, the composite surface with compound bottom sheet 2 of using the same method also produces and cooperates vertical bar wire drawing lines 2.1, lines is parallel to each other, and is distributed in border circular areas, and the pot body is heated at least more than 400 ℃, heat compound bottom sheet more than at least 600 ℃, then compound bottom sheet 2 and bottom of pot body 1 are fitted according to lines relative engagement mode, its basic demand is that the wire drawing lines must be placed in the same way, adopts hot extrusion mode consolidation, in hot pressing, compound specific pressure is controlled at 50～80Kg/mm ²Scope, within 5～10 seconds with compound bottom sheet 2 with after bottom of pot body 1 combines, with the hydraulic press more than several kilotons directly with both consolidations, naturally cooling gets final product then, the production efficiency height, make compound bottom sheet 2 be compounded in bottom of pot body 1 like this, constituted compound pot, be convenient on electromagnetic oven, use by the texture structure that cooperates.

Claims

1, at the bottom of a kind of compound pot, it includes bottom of pot body and compound bottom sheet, compound bottom sheet covers and is fixed on the bottom of pot body, it is characterized in that bottom of pot body and compound bottom sheet apparent surface form the lines of cooperation respectively, by first hot extrusion cooling means again, compound bottom sheet is compounded on the bottom of pot body by texture structure.

2, at the bottom of the compound pot according to claim 1, it is characterized in that described lines adopts the wire drawing lines.

3, at the bottom of the compound pot according to claim 2, it is characterized in that described lines is the vertical bar lines that goes out with 80～100 purpose abrasive band sand on the wire drawing machine.

4, at the bottom of the compound pot according to claim 3, it is characterized in that described lines is parallel lines, is distributed in the border circular areas.