CN2146318Y - Crystallizer for direct continuous casting variable-diameter cast stocks - Google Patents

Abstract

The utility model relates to a crystallizer for direct continuous casting variable-diameter cast stocks, relating to a continuous casting device component. The prior art that variable-diameter blanks casting blanks cast by a continuous casting device is still not realized. The utility model discloses a technical proposal of a crystallizer for direct continuous casting variable-diameter blanks. The key of the technical proposal lies in that the diameter of a crystallizing chamber in the crystallizer is variable, that is to say, a major diameter chamber and a minor diameter chamber are arranged in the crystallizing chamber. A variable and transitional chamber is arranged between the major diameter chamber and the minor diameter chamber as well as the major diameter chamber can be suddenly changed into the minor diameter chamber.

Description

Crystallizer for direct continuous casting variable-diameter cast stocks

The utility model relates to the continuous casting equipment accessory, draw on especially continuous casting reducing strand special-purpose crystallizer.

The processing of reducing blank also has only at present with single piece type casting, die casting, forging and pressing or machined way and realizes, does not retrieve as yet so far to draw the argumentation that continuous casting process obtains the used crystallizer of equipment of reducing strand in the utilization.

The purpose of this utility model is exactly that a kind of technical scheme of drawing continuous casting process casting reducing strand institute special crystallizer of using will be provided.

The technical program is achieved in that on the basis of the conventional crystallizer that is made of the stem stem that has overcoat, crystallization cavity and casting pipe to need, and is outside the utility model is special that crystallization cavity has two footpath, chamber or sectional areas that do not wait at least.The Lower Half of this crystallization cavity is made the path chamber of minor diameter or small bore, and major diameter or chamber, heavy in section big footpath are then made by half one thereon.Connecting portion in the path chamber with chamber, big footpath can suddenly change, and also can one diameter or sectional area continually varying adapter cavity be arranged at connecting portion.

In last technology of drawing continuous casting reducing strand, use crystallizer of the present utility model, can cast out the blank that strand diameter that prior art can't realize or sectional area change.The flagpole of the upper coarse and lower fine classification of picture, the past can't be used cast form, can realize easily now.Have as thick, the thin blank that changes of lock core class again and also can adopt continuous casing cast form in a cluster, both reduced processing capacity and also saved a large amount of raw material, visible effect of the present utility model is significant.

Description of drawings:

Fig. 1 is used to cast the reducing pipe of two kinds of diameters for the utility model, and the cross-sectional schematic of a kind of embodiment of adapter cavity is arranged at big chamber, footpath and path chamber link position;

Fig. 2 is the schematic top plan view of Fig. 1;

Fig. 3 is used to cast the reducing bar base of two kinds of sectional areas for the utility model, is the cross-sectional schematic of a kind of embodiment of suddenling change to the path chamber in chamber, big footpath;

Fig. 4 is the schematic top plan view of Fig. 3.

Now by embodiment the utility model is further described in conjunction with the accompanying drawings.Crystallizer disclosed in the utility model will have two footpaths, unequal chamber or sectional area at least in its crystallization cavity.Now provide two embodiment.Fig. 1 and Fig. 2 provide a kind of tube blank mould that is used to cast two kinds of vary in diameter, and it is by chamber 3, big footpath, path chamber 5 in overcoat 1, stem stem 2 and the crystallization cavity, and by chamber, big footpath 3 to there being the continuous adapter cavity 4 from large to small of a diameter to constitute the path chamber 5.It is bad that the crystal region of strand then casts out large diameter pipe when chamber 3, big footpath when casting; Crystal region enters adapter cavity 4 by chamber, big footpath 3, and the strand diameter moves down continuously and dwindles continuously with crystal region; After crystal region entered path chamber 5, strand then became the minor diameter pipe.Casting process also can be reverse, just casts out the minor diameter pipe earlier, and it is bad to cast out large diameter pipe then, all can realize the casting of reducing pipe, just can cast out down the thick flagpole of going up subfractionation etc. with this technology.Fig. 3, Fig. 4 provide a kind of two kinds of excellent billet crystallizer embodiment that sectional area is variable that are used to cast.It is to be made of chamber, big footpath in overcoat 6 and the crystallization cavity 7 and path chamber 8.Suddenly change between path chamber 8 in chamber 7, big footpath, do not have adapter cavity.The excellent base that casts out like this is long-pending in the heavy in section, and the variation between long-pending has a step of sudden change to small bore, is extremely to suit to casting as the blank that step is arranged of lock core one class.Implement the utility model, required other technologies content except that above-mentioned technology, it is known to be those skilled in the art, so do not give unnecessary details.

Claims (3)

1, the crystallizer that is used for up-lead continous casting of reduced billets mainly is that the stem stem that needs during by overcoat, crystallization cavity and casting pipe constitutes, and feature of the present utility model is that described crystallization cavity has at least two chambeies of not waiting directly or sectional areas.

2, according to the described crystallizer of claim 1, it is characterized in that the Lower Half of crystallization cavity makes the path chamber 5 or 8 of minor diameter or small bore, make major diameter or chamber, heavy in section big footpath 3 or 7 at the first half of crystallization cavity.

3,, it is characterized in that between described path chamber 5 and the chamber 3, big footpath a diameter continually varying adapter cavity 4 being arranged according to claim 1 or 2 described crystallizers.

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