JPH0748657Y2 - High temperature firing container - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-temperature baking container used when baking an object to be treated such as powder or a molded product at a high temperature.

[0002]

2. Description of the Related Art Conventionally, when an amorphous object to be treated such as powder is fired at a high temperature of 200 ° C. or higher, it is filled in a container made of a material such as alumina,
Many of them were stored in a high-temperature firing furnace for processing. However, if the temperature applied to the container becomes uneven during baking, the bottom and wall surfaces of the container will crack and the life will be shortened, and the powder of the container generated at that time will be mixed into the object to be treated. There is a problem that the purity of the product is reduced.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a high-temperature baking container which has a long life and does not reduce the purity of the product during baking.

[0004]

To solve the above problems, a high temperature baking container of the present invention is provided with an opening in the upper part thereof for accommodating an object to be processed therein and baking it at a high temperature. , At least one of its bottom and side wall,
It is characterized in that a slit is provided in advance.

[0005]

In the high-temperature baking container of the present invention having the above-mentioned structure, since the slit is provided in the bottom or the side wall in advance, even if the temperature of the container is not uniform during baking, Since the generated strain of the container is absorbed by the slit , cracks are prevented from occurring during firing. In addition, the slit here means the object inside the container.
A very narrow linear gap that does not spill the processed material
Says the time.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing embodiments. As shown in FIG. 1, the high-temperature firing container 1 of this embodiment includes a side wall portion 10 and a circular bottom portion 11 which are formed in a substantially cylindrical shape, and has an opening 12 in the upper portion.
A slit 13 is formed in the bottom portion 11.

In the case of the embodiment, the slit 13 is formed in a straight line passing through the center point of the circular bottom portion 11 as shown in FIG. 2 and FIG. 2 (a). It may be formed in the shape shown in f). FIG (b), the two linear slits 13 a case in which parallel arrangement, both slit
The toes are arranged symmetrically with respect to the center point of the circular bottom portion 11. The slit 13 shown in FIG. 3C has a cross shape, and its intersection point coincides with the center point of the circular bottom portion 11. The slit 13 in FIG. 3D is of a * shape, and its intersection point also coincides with the center point of the circular bottom portion 11. The slit 13 shown in FIG. 6E has the same linear shape as that shown in FIG. 7A, except that its length matches the diameter of the circular bottom portion 11. The slit 13 in FIG. 6 (f) is substantially Y-shaped, and its intersection point coincides with the center point of the circular bottom portion 11.

The slit 13 may have a shape other than the above. Shape and length and width of the slit 13, the container 1 of the material and shape, the type of the object to be processed, may be appropriately changed depending on conditions such as the processing temperature, the amorphous object to be processed such as powder inlet
Considering that the width of the Sri Tsu DOO 13 3mm or less
Is preferred. The length of the linear slit 13 may be short, but it is preferably 20% or more of the diameter of the circular bottom portion 11. The upper limit of the length is 100% of the diameter of the circular bottom portion 11 as shown in FIG. 2 (e). In this case, it is preferable that the slit is cut up to the side wall portion 10.

The material for the high-temperature firing container 1 may be the same as the conventional one. Examples of the material include alumina, cordierite, magnesia, zirconia, spinel, mullite, carbon, silicon carbide and the like. The high-temperature firing container 1 is manufactured by a method in which powder of the above-mentioned material or powder of a precursor is mixed with a suitable binder and sintered, as in the conventional case. The slit 13 may be formed at any stage before and after sintering. To form the slit 13,
If before sintering, blades etc. of a spatula or a utility knife is used, as long as it is performed after the sintering, a diamond cutter or the like is used.

The high temperature baking container of the present invention may be in the shape of a rectangular column as shown in FIG. High temperature baking container 1
Is composed of a side wall portion 10 and a square bottom portion 11 each formed in a substantially quadrangular prism shape, and has an opening 12 in the upper portion. A slit 13 is formed in the bottom portion 11.
Slits 13 in the case of FIG., As the intersection of diagonal lines of the bottom 11, and is a 2 sides parallel straight bottom 11, like the high-temperature baking container of the previous cylindrical, Sri various shapes
It is possible to form the Tsu door.

The structure of the high temperature baking container of the present invention is as follows.
The present invention is not limited to the embodiment described above. Pickpocket
The container may be formed on the side wall instead of the bottom of the container. Further, it may be formed on both the bottom portion and the side wall portion, or may be a slit continuous from the side wall portion to the bottom portion. The overall shape of the container may be a cylindrical shape, a quadrangular prism shape, a triangular prism shape, a polygonal prism shape having five or more pentagonal pillar shapes, or any other irregular shape.

In addition, various modifications can be made within the scope of the present invention.

[0013]

EFFECTS OF THE INVENTION Since the high-temperature baking container of the present invention is constructed as described above, even if the temperature of the container is not uniform during baking, the distortion of the container caused by the slit is caused by the slit . Since it is absorbed, cracks are prevented from being generated during firing. Therefore, the container for high temperature firing of the present invention has a long life and there is no fear of degrading the purity of the product during firing, and thus is suitable for firing a high purity product.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a high temperature baking container according to the present invention.

FIG. 2A to FIG. 2F are bottom views showing examples of the shapes of slits .

FIG. 3 is a perspective view showing another embodiment of the high temperature baking container of the present invention.

[Explanation of symbols]

1 High Temperature Firing Container 10 Side Wall Part 11 Bottom Part 12 Opening 13 Slit

Claims (1)

[Scope of utility model registration request] 1. A container having an opening in an upper part for accommodating an object to be processed and baking it at a high temperature, wherein a slit is provided in advance in at least one of a bottom part and a side wall part of the container. A container for high temperature firing.