JPH0114923Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a metal sample collecting device, and more particularly to a device for collecting a metal sample from molten metal such as molten steel and hot metal.

Conventionally, several methods have been used to collect metal samples from molten metal for purposes such as analysis. Among these, those using molds include:
A method has been implemented in which the tip or mouth of a mold is immersed in molten metal and a metal sample is collected into the mold using the pressure of the molten metal itself. It is any kind of mold method. There is also a method in which a suction tube is connected to the leading end of the mold and a vacuum suction pump is connected to the other end, and a molten metal sample is taken into the mold by the suction action of the pump. This is a so-called vacuum suction method.
Furthermore, a method has also been implemented in which the mold and the suction pipe connected thereto are sealed under vacuum, and a sample of molten metal is introduced into the mold using negative pressure within the suction pipe. This is a so-called self-priming type. Comparing these,
The first mold method has advantages such as a simple structure and easy handling, but it takes a long time to collect metal samples and is inefficient. The second vacuum suction method is efficient because it takes a short time to collect the metal sample, but it requires a pump and requires pump operation. Furthermore, the third self-priming type does not require a pump and can successfully collect metal samples, but has disadvantages such as high manufacturing cost of the vacuum-sealed suction tube. That is, all of the above methods have advantages and disadvantages, and do not have the same advantages in terms of manufacturing cost, structure, ease of handling, collection efficiency, quality of the metal sample itself, etc.

The present invention was developed in view of these points, and its gist is that, in a metal sample collection device consisting of a mold in which a suction port for molten metal is formed, the mold is placed in a can-shaped vacuum container. It is a metal sample collection device that is housed in a vacuum container and has the vacuum container attached to the tip of the handle, and its purpose is to provide a good suction of molten metal and to collect a metal sample. The object of the present invention is to provide a metal sample collection device that can shorten the collection time and is efficient, and also to provide a metal sample collection device that can collect high-quality metal samples without causing pipe phenomena caused by falling molten metal. It is an object of the present invention to provide a metal sample collecting device which is simple and easy to operate, and which can be provided on the market at low cost.

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In Figures 1 to 3, 1 is a mold formed by a peripheral wall 2 made of ceramic and left and right side plates 3 and 4 made of iron plates. A glass suction tube 6 is attached and an air hole 7 is formed.

The present invention provides the above-mentioned mold 1 in such a product.
and a suction tube 6 are housed in a can-shaped vacuum container 8 made of a metal column, with the mold 1 positioned on one end surface 9 side of the vacuum container 8, and the opening of the other suction tube 6 is housed so as to be located on the other end surface 10 side of the vacuum container 8. For the above-mentioned installation, as one example, the mold 1 and the suction tube 6 are held by a heat-resistant paper tube 11, and mortar 12 is filled between the outer periphery of the paper tube 11 and the inner periphery of the vacuum container 8.
An example of adhesive holding using mortar is shown.

In addition, 13 in the figure is a handle.

A usage example will be explained based on such a configuration. When collecting a metal sample from molten metal, first attach the vacuum container 8 to the handle 13 with one end surface 10 facing downward, then grasp the handle 13 and remove the end surface 10 of the vacuum container 8. Immersion into molten metal. When immersed, the end surface 10 of the vacuum container 8 is instantly melted by the heat of the molten metal, so that the molten metal flows into the vacuum container 8. That is, container 8
The internal pressure is kept in a vacuum and is much lower than the surrounding pressure, so due to the pressure difference, it first flows into the container 8 as if being sucked into it, and at the same time flows into the mold 1 through the suction pipe 6. It is inhaled internally. The sucked molten metal is cooled and hardened in contact with iron plates 3, 4, etc. in the mold 1, and a metal sample is collected. In the above-mentioned collection process, since the mold 1, the suction pipe 6, and everything around them are kept in a vacuum, there is a large pressure difference between them and the molten metal, so the suction performance is good and the collection time is quick. In addition, since suction is performed using a large pressure difference, molten metal does not fall during the collection operation, and high-quality metal samples can be collected. Furthermore, since the collecting operation is simply immersing the end surface 10 of the vacuum container 8 into the molten metal, the operation is easy. Moreover, since the vacuum container 8 itself is made of a metal can and can be manufactured at low cost, the overall cost is also low.

Next, a second embodiment of the present invention will be described with reference to FIG. In this example, the suction pipe 6 is formed into a U-shape and is connected to the upper end of the mold 1, and is substantially the same as the previous example, and exhibits the same functions and effects. Further, a third embodiment will be described with reference to FIG. In each of the above examples, an example was shown in which the suction pipe 6 was connected to the end of the suction port in order to suck the molten metal into the mold 1. A metal sample may be sucked into the mold 1. That is, as shown in FIG. 5, a suction port 14 is formed in the side wall of the mold 1, and this is housed in a can-shaped vacuum container 8, and the vacuum container 8 itself is a heat-resistant paper tube. 15, an introduction port 16 is previously formed in the paper tube 15, and a layer of a heat-resistant material, such as a ceramic material 18, is formed on the bottom 17 of the paper tube 15. In this example, when the vacuum container 8 held by the paper tube 15 is immersed in molten metal, the molten metal is guided to the inlet 16, so the part of the vacuum container 8 corresponding to the inlet 16 melts and the vacuum container Suction port 1 by vacuum in 8
4, the molten metal is sucked into the mold 1.

As described in detail above, the present invention provides a metal sample collecting device consisting of a mold in which a suction port for molten metal is formed, in which the mold is housed in a can-shaped vacuum container, and the vacuum container is placed at the tip of the handle. This metal sample collecting device is characterized by being attached to the metal sample collecting device, which has excellent suction performance for molten metal, reduces metal sample collection time, and provides a metal sample collecting device with high work efficiency. It is possible to provide a metal sample collection device that can collect good quality metal samples, and it is also simple in structure and easy to operate, and it can be provided on the market at a low price. It exhibits the following advantages.

[Brief explanation of the drawing]

The attached drawings 1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a central vertical sectional side view, and FIG.
3 is a perspective view showing the location where it is attached to the handle, FIG. 4 is a central longitudinal sectional view showing the second embodiment, and FIG. 5 is a third embodiment. 1 is a central vertical sectional side view showing an embodiment of the present invention, in which 1 is a mold, 6 is a suction pipe, and 8 is a can-shaped vacuum container.

Claims (1)

[Scope of utility model registration request] A metal sample collection device comprising a mold formed with a suction port for molten metal, characterized in that the mold is housed in a can-shaped vacuum container, and the vacuum container is attached to the tip of the handle. Metal sample collection equipment.