CN202408430U

CN202408430U - Die casting pot with covered bottom

Info

Publication number: CN202408430U
Application number: CN2012200104596U
Authority: CN
Inventors: 陈梅生
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-11
Filing date: 2012-01-11
Publication date: 2012-09-05
Anticipated expiration: 2022-01-11

Abstract

The utility model discloses a die casting pot with a covered bottom. At present, a pot with a covered bottom has the disadvantages that the embedment face of an embedment part of a bottom covering piece and the pot bottom is small, so that the combination firmness between the bottom covering piece and the pot bottom is influenced; and under the condition that cold and hot are alternated, the pot with the covered bottom has lower thermal fatigue resisting performance, and then the service life is influenced. The die casting pot with the covered bottom comprises an aluminium alloy pot body and a bottom covering piece die-cast with the lower part of the pot body integrally, and is characterized in that the bottom covering piece is formed by compounding an aluminium alloy piece and a stainless iron piece; a plurality of grooves distributed in a radial or parallel manner are formed in the upper surface of the aluminium alloy piece; and saw-toothed structures are formed at openings formed by two side walls of the grooves respectively. The die casting pot with the covered bottom has the advantages that the bottom covering piece and the pot body are connected more firmly, and the thermal fatigue resisting performance is better.

Description

End pot is covered in a kind of die casting

Technical field

The utility model relates to pan, and end pot is covered in specifically a kind of die casting.

Background technology

At present; Mostly the end pot that covers that can be used for electromagnetic oven is to adopt machinery that the stainless iron egative film and the mechanical riveted formula of pot body extrusion modling are covered end pot, because this end pot bottom of pot body and the stainless iron egative film of covering has the riveted through hole through closing-up on the stainless iron egative film; The actual effective area of metal section and part that its bottom produces eddy current is less; So the thermal efficiency is lower, and it is complicated to exist mould and parts to make, defectives such as bonding strength difference; And the out-of-flatness of stainless iron egative film not only influences attractive in appearancely, and also can cause damage to the electromagnetic oven surface.

For overcoming the above problems, a kind of composite appears on the market, and side Process circularizes the chassis construction of covering of groove, and its process using Vehicle Processing circularizes groove; Its shortcoming is a not only Vehicle Processing complex process, and groove shape is difficult to control, and tool wear is very big to the shape affects of groove, influences chimeric fastness; And cannelure easily and gas, causes in the groove portion gas can not arrange in the casting forming process, and gas residue is in product; In the post-procedure spray coating process of product, be easy to generate blibbing, cause product rejection, defective such as product qualified rate is low; And cannelure is because its design and the limitation of processing technology, and itself and pot bottom telescoping part chimeric surface are little, influences itself and the fastness that combines of bottom; This covers end pot under hot and cold alternating action, and the heat-resistant anti-fatigue performance is lower, has influenced its service life undoubtedly.

The utility model content

The utility model technical problem to be solved is to overcome the defective that above-mentioned prior art exists, and provides a kind of connection die casting more firm, that the heat-resistant anti-fatigue performance is more stable to cover end pot.

For this reason; The utility model adopts following technical scheme: end pot is covered in a kind of die casting; Comprise the aluminum alloy pan body and cover egative film, it is characterized in that the described egative film that covers is composited by aluminum alloy sheet and stainless iron plate with pot body bottom die casting all-in-one-piece; The upper surface of aluminum alloy sheet has and is some grooves radial or that parallel shape distributes, and the two side oral area of groove forms laciniation.

Since the some grooves that are radial or parallel shape by regular distribution in the bottom; And every groove two side oral area has laciniation, and the bottom of a pan and the chimeric surface that covers egative film can be strengthened significantly, and bond strength is higher; Chimeric back and the bottom of a pan fusible one; These grooves are Mould Machining, and size is unified, and working (machining) efficiency is high.Because some grooves are radial or parallel shape, exhaust efficiency is high in the press casting procedure, and no gas residue has improved product percent of pass in product.

As preferably, described some grooves are distributed on the upper surface of aluminum alloy sheet, make the bottom of a pan and to cover egative film bond strength everywhere consistent.

As preferably, the inner of radial some grooves is near the center of aluminum alloy sheet, and the outer end is positioned at the edge of aluminum alloy sheet.

The beneficial effect that the utlity model has: the laciniation behind the casting forming firmly fastens with a pot body, can make that to cover egative film very firm with being connected of pot body, prevented to cover egative film and pot body disengaging, has prolonged the service life that end pot is covered in die casting.Because it is close with the coefficient of expansion of pot body to cover egative film, so compression casting pan receives the influence of hot and cold alternating action little, heat-resistant anti-fatigue stability is high.

Description of drawings

Figure l is the structural representation of the utility model.

Fig. 2-3 is the structural representation of the utility model aluminum alloy sheet.

Fig. 4 is for being the partial enlarged drawing of the utility model groove.

Fig. 5 is that the A-A of Fig. 4 is to cutaway view.

Among the figure: 1-aluminum alloy pan body, 2-aluminum alloy sheet, the stainless iron plate of 3-, 4-groove, 6-laciniation.

The specific embodiment

Below will combine Figure of description and the utility model done further description through the specific embodiment.

End pot is covered in die casting shown in Fig. 1-4; Aluminum alloy pan body 1 bottom with cover egative film and be cast into one; Cover egative film by aluminum alloy sheet 2 and stainless iron plate 3 rolling being composited; The upper surface of aluminum alloy sheet 2 has and is the several trough 4 that radial (like Fig. 2) or parallel shape (like Fig. 3) are uniformly distributed with, and the two side oral area of groove 4 forms laciniation 6.

As shown in Figure 2, the inner of radial some grooves is near the center of aluminum alloy sheet, and the outer end is positioned at the edge of aluminum alloy sheet.

The manufacture process that end pot is covered in above-mentioned die casting is following: aluminum alloy sheet and stainless iron plate is rolling compound, and the blanking sheet; Covering on the aluminium alloy face of egative film some grooves that processing is radial or parallel shape, the oral area of groove two side forms laciniation; The deburring stamping-out is shaped; Again the egative film that covers after the preheating is put into compression mod cover half die cavity; Die casting, treat that aluminium liquid is full of die cavity after, pot body and the above-mentioned egative film that covers are one through the die casting machine die cast promptly; After treating the compression casting pan cooling, remove the overlap on the pot body, carry out sandblast, spray treatment again, can make die casting and cover end pot.

Claims

1. end pot is covered in a die casting; Comprise aluminum alloy pan body (1) and cover egative film with pot body bottom die casting all-in-one-piece; It is characterized in that; The described egative film that covers is composited by aluminum alloy sheet (2) and stainless iron plate (3), and the upper surface of aluminum alloy sheet (2) has and is some grooves (4) radial or that parallel shape distributes, and the two side oral area of groove (4) forms laciniation.

2. end pot is covered in die casting according to claim 1, it is characterized in that described some grooves (4) are distributed on the upper surface of aluminum alloy sheet.

3. end pot is covered in die casting according to claim 1 and 2, it is characterized in that the center of the inner of radial some grooves (4) near aluminum alloy sheet, and the outer end is positioned at the edge of aluminum alloy sheet.