JPS6021760Y2 - A crucible with a pouring spout with an arc-shaped rim. - Google Patents

Description

[Detailed description of the invention] This invention extends the sun ring of the crucible and provides an arc-shaped pouring spout, which not only prevents temperature drop during pouring and the risk of residual metal scattering, but also reduces material loss and prevents material loss. The purpose is to save resources by eliminating the need for preheating.

The conventional crucible has the upper part of crucible A and the sun ring B as shown in Figure 2.
A pouring spout O extending outward at a nearly right angle was provided between the two.

Therefore, as the inclination angle of crucible A increases during pouring and the residual metal gradually decreases, the degree of cooling is accelerated;
There was a high risk that the molten metal would scatter in the pouring direction over the pouring port O, which was at a nearly right angle.

In this invention, the rim of the sun ring provided on the opening side of the crucible is extended into a roughly shovel shape to form a pouring spout. A part of the rim of the sun ring 2 on the opening side is extended linearly to form a pouring spout 3 having an arcuate shovel shape.
In the example, a heavy oil type combustion chamber 4, a flame outlet 5 and a discharge port 6 are used.
It is installed inside a furnace body 7 having a

A furnace lid 10 having a charging port 9 is placed over the furnace mouth 8 of the furnace body 7, and the pouring port 3 is made to protrude inward from one side of the charging port 9.

This furnace body 7 is supported via a shaft 13 on a pair of pillars 12 protruding parallel to both sides of a pedestal 11.
is supported by an actuating cylinder 14 disposed at the bottom so as to be rotatable through approximately 90° about a shaft 13.

In this case, in order to melt the required alloy steel in the crucible 1 and pour this molten metal into a mold or a ladle (both not shown), the operating cylinder 14 shown in FIG. 7 is shown by a chain line from a stationary state with the axis 13 of the support 12 as the center.
When tilted as shown in a, the crucible 1 installed inside the furnace body 7
are tilted in the same direction, so that the molten metal in the crucible 1 (a small furnace shown in the figure) is poured into the mold or ladle through the pouring port 3.

In this case, the pouring port 3 is shaped like a shovel by extending the inner wall of the crucible 1 in a straight line, so the crucible 1
The molten metal inside the container does not stagnate and flows out smoothly until the end.

This idea extends the inner wall of the crucible in a straight line around the periphery of the sun ring and has a shovel-shaped pouring spout protruding from it, unlike the conventional pouring spout that protrudes diagonally to the side from near the joint between the crucible and the sun ring. Therefore, when pouring, especially near the end, the remaining molten metal in the crucible does not flow through the pouring spout and flows straight in the pouring direction due to the arrangement in which the inner wall of the crucible and the spout turn almost at right angles. Unlike the ones that had a lot of risk of scattering,
In this case, since the pouring spout is located on an extension of the inner wall of the crucible, the remaining hot water flows out in a straight line at the pace of production, which is the final small amount.

Therefore, there is no need for preheating at all since the cooling of the pouring spout is not a problem, and as a result, heat loss during pouring can be significantly reduced, and at the same time, it is possible to save resources by preventing material loss and to ensure that the molten metal does not scatter. The effects are significant, such as increased safety that can be prevented.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of the present invention, showing the procedure for pouring the metal, and FIG. 2 is an explanatory diagram of the prior art. Explanation of the symbols of the main parts, 1... Crucible, 2...
...Nippon, 3...Pouring spout, 7...
Furnace body, 8... Furnace mouth, 9... Input port, 1
0... Hearth lid.

Claims (1)

[Scope of utility model registration request] In a crucible 1 having the required capacity and shape, a pouring spout 3, which is an approximately shovel-shaped extension of a part of the solar ring 2 of the crucible 1, is provided protrudingly, and the crucible 1 is installed inside a rotatable furnace body 7. A pouring spout with an arcuate mouth rim, characterized in that a furnace lid 10 having an input port 9 is provided at the furnace mouth 8 of the furnace body 7, and a pouring spout 3 is made to protrude from the input port 9. A melting pot.