JPH0323038A - Ingot making method in plural kinds of molds with bottom pouring - Google Patents

Abstract

PURPOSE:To manufacture plural kinds of steel ingots from the same molten steel by setting spacer bottom part of the specific mold in ingot making method in plural kinds of molds with bottom pouring. CONSTITUTION:The molds 1, 1' are laid on double surface plates 3, 3' arranged on a surface plate 2, and tip parts of runners 4 formed in the surface plate 2 with bricks are opened bottom part of the molds 1, 1'. Further, center part of the runner 4 communicated with a pouring tube 5 and a pouring basin part 6 is, arranged in the pouring tube 5. The spacer 7 is set at the bottom part of mold 1, and by arranging opening part therein to communicate with the runner 4, the molten steel is cast into each mold 1, 1' from the pouring basin part 6 through the pouring tube 5 and runner 4, and the plural steel ingots having different shapes can be manufactured with the same molten steel at the same time.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a multi-type agglomeration method using bottom pouring.

BACKGROUND OF THE INVENTION When forming ingots from molten metal from a melting furnace, there are two methods: a top pouring method and a bottom pouring method, and the bottom pouring method is preferably used in the ingot making of special steel. In that case, a method of producing a steel ingot by casting it into a plurality of molds is also a known technique. FIG. 2 is a schematic structure diagram of a bottom pouring ingot making device for explaining an example of the conventional bottom pouring ingot making method, in which { and l' are molds, each placed on a surface plate 2. It is placed on double surface plates 3 and 3' provided. The molten metal from the melting furnace passes through the injection pipe 5 from the sump 6, passes through the runner 4 provided in the surface plate, and is poured from the bottom of the molds 1, 1'.

Problems to be Solved by the Invention In the above-mentioned conventional bottom pouring ingot making method, since the molten metal is poured into each mold 1, 1' to the same level, multiple steel ingots of different sizes are poured at once using the same molten metal. could not be manufactured.

The present invention has been made in view of the above-mentioned problems in the conventional technology.

That is, an object of the present invention is to provide a multi-type casting method in which a plurality of steel ingots of different sizes are manufactured at the same time by under-pouring using the same molten metal.

Means for Solving the Problems The present invention provides a method for producing steel ingots by pouring molten metal from a melting furnace into a plurality of molds using a bottom pouring method. A spacer having an opening for introducing the molten metal is placed at the bottom of a predetermined mold, and the molten metal is simultaneously poured into a plurality of molds to produce a steel ingot.

Function: In the multiple mold ingot forming method using bottom pouring of the present invention, after placing a baser of a predetermined size in a predetermined mold of a plurality of molds, molten metal from the melting furnace is simultaneously supplied to the bottom of each mold. do. At this time, since various predetermined sizes of basers are placed at the bottom of the mold, when the molten metal supplied into each mold reaches a predetermined level, the steel ingots formed in the mold are of various sizes. It will be the size of the.

EXAMPLES Hereinafter, examples of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a bottom pouring ingot-making apparatus for carrying out the method of the present invention, in which 1 and 1' are molds, each of which has a double surface plate provided on a surface plate 2. 3, 3'. The surface plate 2 is provided with a runner 4 made of brick, and the tip of the runner opens at the bottom of the mold 1, 1'. In addition, the center part of the runner 4 is connected to the injection pipe 5.
A water reservoir 6 is provided at the upper part of the injection pipe 5.

In the present invention, a baser is placed on the bottom of a predetermined one of the molds (mold 1 in FIG. i). This spacer is provided with an opening that communicates with the runner.

In this bottom pouring ingot making device, molten metal from the melting furnace is poured from the bottom of each mold into the mold through the injection pipe 5 and runner 4 from the molten sump 6, and is solidified to form a steel ingot. .

Using a bottom-pouring ingot device having five molds having the structure shown in FIG. 1, various sizes of basers were placed in each mold, and then 1300 kg of molten metal was simultaneously cast. Steel ingots of various sizes were formed depending on the size of the baser placed in each mold. These steel ingots are
Since both upper parts are shaped at the same level within the mold, handling such as cutting after solidification can be unified, making work easier.

Effects of the Invention As described above, the multiple-type agglomeration method using bottom pouring of the present invention has the following effects:
Since the molten metal is poured by placing a baser of a predetermined size at the bottom of a predetermined mold among multiple molds, it is possible to manufacture multiple steel lumps of different sizes at the same time using the same molten metal. Become.

In addition, since the level of molten metal in each mold is the same, even if the steel ingots formed by solidification are of different sizes, handling after solidification such as cutting can be unified and simplified. arise.

FIG. 2 is an explanatory diagram illustrating a schematic configuration of a bottom pouring agglomeration device that implements the conventional method.

1, l'...mold, 2... surface plate, 3, 3'... double surface plate, 4... runner, 5... inlet, B... sump, 7. ··Spacer

Claims (1)

[Claims] (1) In the multiple mold ingot making method by bottom pouring, in which steel ingots are manufactured by pouring the molten metal from the melting furnace into multiple molds using the bottom pouring method, the bottom of a predetermined mold among the plurality of molds is poured. , place a spacer with an opening for introducing the molten metal,
A multiple mold ingot making method using bottom pouring, which is characterized by producing steel ingots by simultaneously pouring molten metal into multiple molds.