JPS6250050A - Continuous casting machine with moving mold - Google Patents

Abstract

PURPOSE:To retard the solidification in side parts and to prevent the joining between the solidified shell on a nozzle and the solidified shell on side moving molds by using refractory heat insulating materials to seal the side parts of the moving mold consisting of the side moving molds. CONSTITUTION:The refractory heat insulating materials 8 are supported by supporting members 9 on the inside onto the external side faces for sealing of the nozzle 1 and the side moving molds 6, 7 provided to the side parts of the moving mold 4. The materials 8 are constituted of a material having porous structure and having refractoriness and heat insulating characteristic. The formation of the solidified shell to the side parts is thus retarded and the problem at the triple points of the molds 4, 6, 7 as well as the nozzle 1 and the molten metal 3 (b) is eliminated.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a mobile continuous casting machine.

[Prior Art] Figure 2.3 shows an example of a conventional mobile continuous casting machine (one-side mobile type), in which the horizontally long pouring spout of the nozzle 1 (
It has a moving type 4 such as a block type or a belt type that moves the molten metal 3 from the slit 2 upwards in a continuous (endlessly connected) horizontal direction. A solidified shell 5 is formed on the movable mold 4 by the cooling function provided by the nozzle 1 and the movable mold 4.
Side movable molds 6.7, which move in the same direction and at the same speed as the movable mold 4, are provided on both sides of the movable mold 4 to perform side sealing of the molten metal 3.

[Problems to be solved by the invention] However, in the mobile continuous casting machine as described above,
At the triple point where the movable molds 4, 6.7, nozzle 1, and molten metal 3 contact, the solidified shell formed on the nozzle 1 and the movable mold 4
, 6.7, a triple point problem occurs when the solidified shell formed on the surface joins.

The above-mentioned triple points include the nozzle triple point A and the side wall triple point mouth. Regarding the nozzle triple point A, it is conventionally possible to prevent the problem by making the shape of the nozzle tapered or by providing a baffle plate. However, the reality is that there are no effective measures to prevent problems with triple-point entrances on side walls.

In view of these circumstances, the present invention solves the problem of triple points on the side wall by sealing the sides with a fireproof heat insulating material.

[Means for solving the problems] The present invention attempts to solve the above technical problems, and
In a continuous VI making machine that has a moving type that receives molten metal from a nozzle and solidifies the molten metal while moving,
A mobile continuous casting machine, characterized in that a side moving mold is provided on the side of the movable mold, the mold moving together with the movable mold and sealing the side with a refractory heat insulating material. It is something.

[Function] Therefore, in the present invention, the formation of a solidified shell on the side can be delayed by sealing the side by the side-moving type with a fireproof heat insulating material, and therefore the solidified shell on the nozzle can be prevented from moving to the side. It can prevent joining with the solidified shell on the mold.

[Example] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of the present invention applied to the conventional device shown in FIG. 3, and the same reference numerals in the figure represent the same parts.

As shown in the figure, a side movable mold 6.7 provided on the side of the nozzle 1 and the movable mold 4 has a refractory heat insulating material 8 on the outer surface for sealing, and the refractory heat insulating material 8 is attached to an inner support member 9. It is configured to be supported by

The fireproof insulation material 8 is a ceramic fiberboard (S
It is made of a material with a porous structure such as FB), which has fire resistance and heat insulation properties. In addition, although it is generally difficult to manufacture large-sized fireproof heat insulating material 8, since it is supported by support member 9, it can be divided into smaller pieces and attached, or the strength can be transferred to support member 9. You can do it like this. Further, manufacturing can be made inexpensive by using the highly refractory heat insulating material 8 only in the portion where the side triple point opening occurs, and by using other refractory materials that are relatively easy to manufacture in the other portions.

It should be noted that the present invention is not limited only to the above embodiments, and although the case of a one-sided movable type with a movable type on the lower side has been described, it can be similarly applied to a case where movable types are provided on both the upper and lower sides. Of course, various other changes may be made without departing from the spirit of the present invention.

[Effects of the Invention] As described above, according to the mobile continuous casting machine of the present invention,
Since the sides of the side-moving type are sealed using fireproof insulation material, the formation of solidified shells on the sides can be delayed, and the solidified shells on the nozzle can join with the solidified shells of the side-moving types. Therefore, an excellent effect can be achieved in that the side wall triple point problem can be solved.

[Brief explanation of the drawing]

FIG. 1 is a cutaway front view showing an embodiment of the present invention, FIG. 2 is a cutaway side view showing an example of a conventional mobile continuous casting apparatus, and FIG. 3 is a cutaway front view of FIG. 2. 1 is a nozzle, 2 is a pouring sprue, 4 is a moving type, 6.7 is a side moving type, 8 is a fireproof insulation material, and 9 is a support member. Patent application Makoto Otsuka Te Ishikawajima Harima Heavy Industries Co., Ltd. ・□1-
, 1゛−′・−・j

Claims (1)

[Claims] 1) In a continuous casting machine having a movable mold that receives molten metal from a nozzle and solidifies the molten metal while moving, a continuous casting machine that moves together with the movable mold and solidifies the molten metal is placed on the side of the movable mold. A mobile continuous casting machine characterized by being equipped with a side-moving type that performs sealing with a fireproof heat insulating material.