KR20110072034A - Milling jar - Google Patents

Abstract

PURPOSE: A ball milling container is provided to prevent rapid loss of gas contained inside and improve product quality. CONSTITUTION: A ball milling container comprises: a container main body(120) having a chamber containing ingredient powder, ball, and gas; a lid(140) having a first gas injection part(144) and a first gas discharge part(146); and a sealing cap(160) having a sealed space(166) by containing the first gas injection part and gas discharge part inside. The container main body has a sealer(126) at the upper end portion. The sealer enhances sealing force of the chamber by contacting the lower surface of the lid and the upper end portion of the container main body in case of binding the lid and container main body.

Description

Ball Milling Container {Milling jar}

1 is a longitudinal sectional view showing an internal configuration of a ball milling container according to the prior art.

Figure 2 is a perspective view showing the appearance of the ball milling container according to the present invention.

Figure 3 is an exploded perspective view showing the appearance configuration of an embodiment of a ball milling container according to the present invention.

Figure 4 is a longitudinal sectional view showing the internal configuration of an embodiment of a ball milling container according to the present invention.

Figure 5 is a longitudinal sectional view showing the internal configuration of another embodiment of a ball milling container according to the present invention.

Figure 6 is a longitudinal sectional view showing a state in which the sealing cap is separated in one embodiment of the ball milling container according to the present invention.

Figure 7 is a longitudinal sectional view showing a state in which the sealing cap is separated in another embodiment of the ball milling container according to the present invention.

Explanation of symbols on the main parts of the drawings

100. Ball milling container 120. Container body

122. Chamber 124. Constraints

126.Sealers 128. Fasteners

140. Lid 142. Step

144. First gas injection unit 146. First gas discharge unit

148. Coupling Part 160. Sealing Cap

162. Flange 163. Sealing member

164. Cap body 166. Confined space

167. First sealed space 168. Second sealed space

200. Compartment container 220. Compartment base

222. Fittings 224. Compartment chamber

226. Compartment sealer 228. Clamp for compartment

240. Compartment lid 242. Compartment step

244. Joints for compartments 245. Gas guide means

246. Second gas inlet 247. Second gas outlet

260. Pressing part 262. Elastic part

 B. ball

The present invention relates to a ball milling container, and more particularly, to a ball milling container to block the leakage of gas charged therein to ensure safety and improve powder quality.

Ball milling method is a method of manufacturing the powder by the collision between the raw material powder to be made into powder in the rotating ball mill container and the ball with high hardness and low wear rate.

That is, as the ball milling container rotates, the balls charged in the ball milling container move and cause collisions with the raw material powder between the balls and the balls, and the generated impact energy breaks the raw material powder to cause micronization.

As the material of the ball, ceramic, cermet, steel, or stainless steel is mainly used.

The device for ball milling is a horizontal ball mill that is generally used for production, and high energy such as planetary ball mill, attrition ball mill, SPEX ball mill and vibration mill. There is a ball milling device.

In addition, a specific gas such as argon gas, nitrogen gas or hydrogen gas is injected into the ball milling container according to the characteristics of the raw material powder during the ball milling process of the raw material powder using the ball milling device.

That is, when the raw material powder has a characteristic of being easily oxidized such as metal powder and carbide powder, in order to perform dry ball milling using a ball milling processing apparatus, inert gas or hydrogen gas may be injected into the ball milling vessel. do.

For example, when ball milling a metal powder or a carbide powder, an inert gas such as argon or nitrogen is filled in the ball milling container to prevent oxidation, and the metal powder which is easily reacted with magnesium powder and hydrogen is Ball milling may be performed in an inert atmosphere to produce fine magnesium-based powders, or magnesium-based metal hydrogen compounds may be prepared in a hydrogen atmosphere of about 5 atmospheres or more. When magnesium-based metal hydride is produced by ball milling a magnesium-based powder in a hydrogen atmosphere, metal hydride is difficult to be produced when the hydrogen pressure in the ball milling vessel decreases below 5 atm. Therefore, the ball milling vessel should be designed so that the pressurized pressure in the ball milling vessel is not reduced.

Hereinafter, a configuration of a conventional ball milling container will be described with reference to FIG. 1.

1 is a longitudinal sectional view showing the internal configuration of a ball milling container according to the prior art.

As shown in the drawing, the conventional ball milling container 1 has an approximately cylindrical shape, a container body 10 into which a raw material powder and a ball are inserted, and a lid selectively shielding an upper portion of the container body 10. It comprises 20.

The container body 10 is provided with a chamber 12 having a predetermined size, and the raw material powder, the ball 14 and the gas are charged together in the chamber 12.

The sealer 16 is provided at the top of the container body 10. The sealer 16 serves to prevent the gas inside from leaking to the outside when the lid 20 and the container body 10 are coupled to each other.

Therefore, the upper portion of the sealer 16 is in contact with the lower surface of the lid 20, the lower portion of the sealer 16 is fixed in contact with the upper end of the container body (10).

A fastening part 18 is provided outside the sealer 16. The fastening portion 18 is a configuration that the lid 20 and the container body 10 is fastened by a fastening member.

The lower surface of the lid 20 is formed stepped. That is, the center portion of the lower surface of the lid 20 further protrudes to the lower side than the outer side to form the step portion 22, and the outer diameter of the step portion 22 corresponds to the inner diameter of the chamber 12.

Therefore, when the lid 20 and the container body 10 is coupled, the step portion 22 is fitted to the upper chamber 12.

The coupling part 24 is provided outside the step part 22. The coupling portion 24 is formed in the hole corresponding to the fastening portion 18 is the place where the fastening member is fitted.

Left and right sides of the lid 20 is provided with a gas injection unit 26 and a gas discharge unit 28. Although not shown, the gas injection unit 26 and the gas discharge unit 28 are provided with a valve to selectively shield the inside thereof.

Therefore, the gas can be injected into the chamber 12 through the gas injection unit 26, and the gas can be discharged through the gas discharge unit 28.

However, the conventional ball milling container configured as described above has the following problems.

That is, the chamber 12 for crushing the raw material powder is composed of a single space. Therefore, when a high-pressure gas is injected into the chamber 12, even if the lid 20 and the container body 10 are strongly fastened by the sealer 16 and the fastening member, the gas may be leaked finely. As a result, leakage of the metal promotes oxidation of the raw material powder, so that metal oxides are likely to be formed on the powder surface.

In addition, the leakage of such a gas has a problem in that metal hydride is difficult to form when milling powders such as magnesium in a pressurized hydrogen atmosphere due to accelerated oxidation of the raw powder or reduction of hydrogen pressure in the milling vessel.

In addition, when the gas is applied as hydrogen, when sparking occurs in the motor driving the ball milling device, an accident such as explosion may occur due to leakage of hydrogen, which is not preferable for safety. In addition, when the gas is applied as hydrogen, since the leaked hydrogen may spark on the motor driving the ball milling device, an accident such as fire and explosion may occur, which is not preferable for safety.

An object of the present invention to solve the above problems, to provide a ball milling container having a leakage preventing cap to prevent the leakage of the gas filled in the ball milling container.

Another object of the present invention is to provide a ball milling container which can block oxidation of raw material powder in advance by partitioning a plurality of chambers inside the ball milling container to prevent sudden loss of gas.

Still another object of the present invention is to provide a ball milling container in which a safety accident such as a fire or an explosion is prevented when a hydrogen atmosphere is used.

The ball milling container according to the present invention comprises: a container body having a raw material powder, a chamber into which a ball and a gas are charged; A lid provided with a first gas injection unit and a first gas discharge unit for selectively shielding the inside of the container body and allowing the chamber to selectively communicate with the outside; It characterized in that it comprises a closure cap to form a sealed space by receiving the first gas injection portion and the first gas discharge portion in the upper side of the lid.

The sealing cap may be provided in plural to form a first sealing space and a second sealing space separated from each other outside the first gas injection part and the first gas discharge part.

Between the sealing cap and the lid, it is formed of a material having an elastic force, characterized in that the sealing member for disconnecting the sealed space from the outside.

Inside the container body, it is characterized in that the partition container for partitioning the chamber into a plurality of spaces.

The compartment is characterized in that the fixed inside the chamber.

One side of the compartment container, characterized in that the fitting portion is fitted to one side of the inside of the chamber to limit the movement in the chamber.

One side of the lid, it characterized in that the pressing portion for pressing the one side of the compartment container to limit the movement of the compartment container.

The pressing portion has a height corresponding to the distance spaced from the upper surface of the partition container to the lower surface of the lid.

One end of the pressing portion, characterized in that the elastic portion for generating an elastic restoring force to provide a pressure to the partition container.

The partition container is characterized in that it comprises a partition body for partitioning the chamber to form a partition chamber, and a partition lid for selectively shielding the partition chamber.

One side of the compartment lid is characterized in that the gas guide means for selectively communicating with the compartment chamber and the chamber is provided.

The gas guide means may include a second gas injection part to enable gas injection into the compartment chamber, and a second gas discharge part to discharge the gas inside the compartment chamber to the outside. And a second gas discharge part is shorter than a length of the pressurizing part.

According to the present invention configured as described above, because the gas leakage is blocked in advance, safety accidents are prevented, and the quality is improved due to the oxidation prevention of the raw material powder.

Hereinafter, the external configuration of the ball milling container as described above will be described in detail with reference to FIGS. 2 to 4.

Figure 2 is a perspective view showing the external configuration of the ball milling container according to the present invention, Figure 3 is a longitudinal sectional view showing the internal configuration of an embodiment of the ball milling container according to the present invention, Figure 4 A longitudinal sectional view showing the internal configuration of one embodiment of a ball milling container according to the invention is shown.

As shown in these figures, the ball milling container 100 has a cylindrical appearance, and includes a container body 120 having a raw material powder, a ball B, and a chamber 122 into which a gas is charged, and the container. The lid 140 selectively shields the inside of the main body 120, and includes a closure cap 160 that forms an airtight space 166 on the lid 140.

The container body 120 is recessed to have a predetermined depth in the upper surface central portion to form the chamber 122, the chamber 122 is divided into a plurality.

That is, the compartment 122 is provided in the chamber 122 to partition the chamber 122 into a plurality of spaces. The compartment 200 is a place where the raw material powder, the ball (B) and the gas is charged and the raw material powder is ball milled.

The configuration of the compartment container 200 will be described in detail below.

The inner bottom surface of the chamber 122 is provided with a restraining portion 124 recessed downward. The restraining part 124 is configured to limit the movement of the compartment container 200 inside the chamber 122 by accommodating and constraining a lower portion of the compartment container 200 therein.

The sealer 126 is provided at the upper end of the container body 120. The sealer 126 is configured to increase the sealing force of the chamber 122 by contacting the lower surface of the lid 140 and the upper end of the container body 120 when the lid 140 and the container body 120 are coupled.

Therefore, the sealer 126 is formed of a material having an elastic force, and has a ring shape having a predetermined thickness. In addition, the sealer 126 is fixed to the container body 120 is fitted.

The fastening part 128 is provided outside the sealer 126. The fastening portion 128 is a configuration for maintaining the lid 140 and the container body 120 is coupled by the fastening member (S), where the lower portion of the fastening member is screwed.

In addition, the fastening portion 128 is preferably provided with a plurality in order to increase the coupling force of the lid 140 and the container body 120.

The lid 140 is provided on the upper side of the container body 120. The lid 140 allows the chamber 122 to be shielded from the outside of the ball milling container 100, and at the same time, a gas (gas for preventing oxidation of raw powder) is injected into the chamber 122. It serves to discharge the gas inside the chamber 122 to the outside.

To this end, a lower portion of the lid 140 has a stepped portion 142 protruding downward to have a disc shape, and a first gas injection portion 144 and a first portion are provided on the left and right sides of the lid 140. Each gas discharge unit 146 is provided.

The stepped portion 142 is molded into an outer diameter corresponding to the inner diameter of the chamber 122 and is fitted to the upper portion of the chamber 122 when the lid 140 and the container body 120 are coupled to each other.

In addition, the first gas injection unit 144 and the first gas discharge unit 146 are fixed through the lid 140, and the first gas injection unit 144 and the first gas discharge unit 146 are fixed. The interior of the communication with the top / bottom of the lid 140.

Therefore, when the lid 140 is coupled to the container body 120, the stepped portion 142 is inserted into the chamber 122 to shield the chamber 122, the first gas injection portion 144 Gas is injected into the chamber 122 through the gas, or the gas inside the chamber 122 may be discharged to the outside through the first gas discharge part 146.

In addition, although not shown, the first gas injection unit 144 and the first gas discharge unit 146 are preferably provided with a separate valve so that the injection or discharge of gas can be selectively performed by the user.

The coupling part 148 is provided at the left / right side of the lid 140. The coupling part 148 generates a compressive force to prevent the lid 140 and the container body 120 from being separated from each other by generating a compressive force in the lid 140 and the container body 120. It is formed through the up / down direction of the 140, a plurality is formed in a position corresponding to the fastening portion (128).

In addition, a fastening member is fastened to the coupling part 148 and the fastening part 128. Therefore, the container body 120 and the lid 140 are not separated unless the fastening force of the fastening member is terminated.

On the other hand, the compartment 122 is provided in the chamber 122. The compartment container 200 is a configuration in which the ball milling process of the raw powder is made by rotating together with the ball milling container 100 in a fixed state inside the chamber 122.

To this end, the compartment 200 is provided with a fitting portion 222 so as not to move inside the chamber 122. The fitting portion 222 has a size and shape corresponding to the above-described restriction portion 124 is formed to protrude downward from the bottom surface of the partition container 200.

Therefore, when the fitting portion 222 is fitted to the restraining portion 124, the lower portion of the compartment container 200 may be restricted in the front / rear and left / right directions inside the chamber 122.

In addition, the partition vessel 200 partitions the internal space of the chamber 122 to form a partition chamber 224 in which a ball milling process is performed.

Looking in more detail, the partition container 200 partitions the chamber 122 in the chamber 122 to form a partition chamber 224 and the partition chamber 224 selectively It is configured to include a partition lid 240 for shielding, the partition vessel 200 is to form a separate partition chamber 224 in the chamber (122).

In addition, a raw material powder, a ball B, and a gas are charged into the compartment chamber 224.

The partition main body 220 is recessed downward from the upper side to form the partition chamber 224, and a partition sealer 226 is provided at an upper end of the partition main body 220.

The compartment sealer 226 generates elastic restoring force so that the compartment main body 220 and the compartment lid 240 come into close contact with each other so that the compartment chamber 224 forms a space independent of the chamber 122. .

That is, the compartment sealer 226 is fixed to the lower state is inserted into the upper end of the base body for partition 220, the upper portion protrudes to the upper side of the base body for partition 220. Therefore, when the compartment main body 220 and the compartment lid 240 are coupled to each other, the compartment sealer 226 is in contact with the bottom surface of the compartment lid 240 while generating an elastic restoring force, compartment compartment 224 The interior is sealed.

The partition fastening part 228 is provided outside the partition sealer 226. The partition fastening part 228 is a place where the fastening member is coupled, and receives a lower portion of the fastening member penetrating the partition lid 240 therein to generate a fastening force.

The compartment lid 240 is provided on an upper side of the compartment main body 220. The compartment lid 240 has a smaller size than the lid 140 and has a similar shape.

That is, the partition lid 240 has a partition stepped portion 242 protruding downward with an outer diameter corresponding to the inner diameter of the partition chamber 224, and is partitioned on the left and right sides of the partition lid 240. Compartment coupling portion 244 is formed perforated by the position and the number corresponding to the melted portion 228.

Therefore, when the lower part of the fastening member is fastened to the partition fastening part 228 in a state in which the fastening member is inserted into the partition coupling part 244, the partition step part 242 opens the upper part of the partition chamber 224. The compartment sealer generates an elastic restoring force so that the compartment chamber 224 is completely sealed.

The central portion of the compartment lid 240 is provided with a gas guide means 245 for the compartment chamber 224 to selectively communicate with the chamber 122 or the outside.

The gas guide means 245 may include a second gas injection unit 246 to enable gas injection into the compartment chamber 224, and a second gas to allow the gas inside the compartment chamber 224 to be discharged to the outside. It is configured to include a discharge portion (247).

The second gas injection unit 246 is charged with the raw material powder and the ball (B) in the compartment chamber 224, and selectively opened in a state in which the compartment lid 240 and the compartment main body 220 are coupled to each other. Gas injection into the compartment chamber 224 is possible.

In addition, the second gas discharge part 247 is selectively opened when the ball milling process is completed to allow the gas inside the compartment chamber 224 to be discharged to the outside of the compartment container 200.

Accordingly, the second gas injection unit 246 and the second gas discharge unit 247 may be separately opened by a user such as the first gas injection unit 144 and the first gas discharge unit 146. It is preferable that the valve is provided.

On the other hand, the pressing unit 260 is provided between the compartment container 200 and the lid 140. The pressurizing unit 260 serves to limit the partition container 200 from moving inside the chamber by applying pressure to the partition container 200 when the lid 140 and the container body 120 are coupled to each other.

To this end, the pressing unit 260 has a height corresponding to the distance spaced from the upper surface of the partition container 200 to the lower surface of the lid 140. More specifically, as shown in FIG. 3, the distance from the upper surface of the partition lid 240 to the lower surface of the lid 140 in a state in which the fitting portion 222 and the restricting portion 124 are fitted is a portion of the pressing portion 260. It is configured to correspond with the height.

In addition, the lower end of the pressing portion 260 is provided with an elastic portion 262 for generating an elastic restoring force to provide pressure to the partition vessel 200.

Accordingly, when the lid 140 and the container body 120 are coupled to each other, and the pressing unit 260 and the compartment lid 240 are close to each other, the elastic portion 262 and the upper surface of the compartment lid 240 The elastic restoring force is generated by contact, thereby limiting the movement of the compartment container 200.

An airtight cap 160 is provided on the lid 140. The sealing cap 160 is configured to block the gas inside the chamber 122 from leaking to the outside so that safety accidents can be prevented.

That is, the gas inside the compartment chamber 224 leaks into the chamber 122, and a bad condition in which the gas leaked into the chamber 122 may leak to the outside may be prevented, thereby preventing safety such as an explosion accident. It is a configuration that prevents accidents.

For example, although the first gas injection unit 144 and the first gas discharge unit 146 are firmly coupled to the lid 140, when the pressure inside the chamber 122 is increased, a seam may open and leakage may occur. There may be room.

The closure cap 160 is configured to block even this possibility of leakage in advance.

To this end, the sealing cap 160 has a ring-shaped flange 162 and a cap body 164 protruding upward from the inside of the flange 162 and having an empty interior to form a sealed space 166. It is configured to include).

The flange 162 is coupled to the upper surface of the lid 140 to accommodate the first gas injection portion 144 and the first gas discharge portion 146 in the sealed space 166, and generates a sealing force The gas leaked through the first gas injection unit 144 and the first gas discharge unit 146 may be controlled so as not to be discharged to the outside.

To this end, a sealing member 163 is provided on the lower surface of the flange 162. The sealing member 163 is formed of a material having an elastic force, and when the flange 162 is coupled to the lid 140 by a fastening member, the sealing member 163 is pressed simultaneously in contact with the upper surface of the lid 140 and the lower surface of the flange 162. This makes it possible to limit the flow of gas.

Hereinafter, the configuration of another embodiment of the ball milling container 100 will be described with reference to FIG. 5.

Figure 5 is a longitudinal cross-sectional view showing the internal configuration of another embodiment of the ball milling container according to the present invention.

As shown in the figure, in another embodiment of the ball milling container 100, the configuration of the pressing portion 260 and the fitting portion 222 is changed.

That is, in one embodiment, but only one pressing unit 260 is configured, in another embodiment is provided with a plurality so as to press a plurality of places of the compartment lid 240.

In addition, the fitting portion 222 and the restraining portion 124 are configured to be fitted by protruding or recessed to have a shape corresponding to each other in one embodiment, but in another embodiment, a screw shape is formed on an outer circumferential surface of the fitting portion 222. The inner circumferential surface of the restraint part 124 was machined so as to process a female screw corresponding to the outer circumferential surface of the fitting part 222 to be screwed together.

Therefore, the pressurizing portion 260, the fitting portion 222, and the restraining portion 124 may be variously modified within the range in which the partition vessel 200 is restricted in the movement of the chamber 122.

On the other hand, the sealing cap 160 may be provided in plurality as shown in FIG. That is, the sealing cap 160 may be configured to accommodate the first gas injection unit 144 and the first gas discharge unit 146 independently therein, so that each sealed space may be formed.

That is, the sealing cap 160 is provided with the number corresponding to the sum of the number of the first gas injection unit 144 and the first gas discharge unit 146 provided in the lid 140, the first sealed space 167 ) And the second sealed space 168 may be configured to independently seal a component in which gas leakage may occur.

Hereinafter, the operation of the ball milling container 100 configured as described above will be described with reference to FIGS. 4 to 7.

Figure 6 is a longitudinal sectional view showing a state in which the sealing cap is separated in one embodiment of the ball milling container according to the present invention, Figure 7 is a sealing cap in another embodiment of the ball milling container according to the present invention A longitudinal cross-sectional view is shown showing the separated state.

First, the lid 140 and the sealing cap 160 and the container body 120 is separated, ball milling in the compartment chamber 224 in a state in which the compartment lid 240 and the compartment main body 220 are separated. The raw material powder and the ball B required to be processed are charged.

Thereafter, the compartment lid 240 and the compartment base body 220 are coupled to each other so that the compartment chamber 224 is sealed to the outside. In this case, the partition step portion 242 is inserted into the partition chamber 224, the partition sealer 226 is in contact with the lower surface of the partition lid 240 and the lower end of the partition main body 220 at the same time, A fastening member is fastened to the partition coupling part 244 and the partition fastening part 228.

In addition, the second gas injection unit 246 is opened to inject gas in a state of shielding the gas guide means 245.

When the raw material powder, the ball (B) and the gas is charged into the compartment chamber 224 by the above process, the compartment vessel 200 is inserted into the chamber 122 and then fixed.

That is, the insertion part 222 is inserted into the restraint part 124 to restrain the lower part of the partition container 200.

Thereafter, the lid 140 and the container body 120 are combined to be disconnected from the chamber 122 and the outside. More specifically, the stepped portion 142 is fitted to the upper portion of the chamber 122, the sealer 126 is in contact with the bottom of the lid 140 and the top of the container body 120 at the same time, the coupling portion The fastening member is fastened to the 148 and the fastening portion 128.

When the above process is completed, the state becomes as shown in FIG. 6, wherein the elastic part 262 receives the pressure from the pressurizing part 260 and transmits the pressure to the upper surface of the partition lid 240, so that the partition container 200 is provided. ) Is restricted in flow within the chamber 122.

Accordingly, the chamber 122 and the compartment chamber 224 partitioned together exist in the ball milling container 100, and the chamber 122 leaks even when the gas inside the compartment chamber 224 leaks to the outside. Since the gas is interrupted once again, it is possible to prevent the sudden loss of gas.

Thereafter, the cap 140 is coupled to the sealing cap 160. The sealing cap 160 is in contact with the upper surface of the cap 140 by a fastening member, wherein the sealing member 163 is in line contact with the lower surface of the flange 162 and the upper surface of the lid 140 at the same time to leak gas You can crack down again.

In addition, as described above, even when a plurality of sealing caps 160 are provided according to the configuration of another embodiment as shown in FIG. 7, the sealing cap 160 may include a first gas injection unit 144 and a first gas discharge unit. By forming the first sealed space 167 and the second sealed space 168 on the outside of the (146), it is possible to block the gas leakage.

The scope of the present invention is not limited to the above-described embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the scope of the present invention.

For example, in the embodiment of the present invention, a ball milling container consisting of a sequential combination of the container body, the lid and the sealing cap in the upward direction described as an example, it can prevent the gas leakage through the components for gas injection or discharge. As a matter of course, the present invention can be applied to various types of ball milling containers.

In the present invention, the pressurizing part was provided to prevent the leakage of the gas filled in the ball milling container, and the sealing cap was further provided to prevent the leakage of the gas that may be generated despite the pressurizing part.

Therefore, the gas filled in the compartment chamber is triple shielded by the compartment container, the container body and the sealing cap has the advantage that safety accidents such as fire or explosion due to leakage is prevented in advance.

In addition, since the rapid loss of the gas inside the ball milling container is prevented, the oxidation of the raw material powder can be blocked in advance, and thus, there is an advantage of preventing the oxidation of the highly oxidizable raw material powder such as magnesium.

In addition, there is an advantage that the magnesium-based hydride can be easily produced when the magnesium-based powder is ball milled under a pressurized hydrogen atmosphere.

In addition, there is an advantage that a high quality powder can be obtained for the above reasons.

Claims (12)

A container body having a raw material powder and a chamber into which a ball and a gas are charged; A lid provided with a first gas injection unit and a first gas discharge unit for selectively shielding the inside of the container body and allowing the chamber to selectively communicate with the outside; Ball milling container characterized in that it comprises a closed cap to form a sealed space by receiving the first gas injection portion and the first gas discharge portion in the upper side of the lid. The ball milling container of claim 1, wherein a plurality of the sealing caps are provided to form a first sealing space and a second sealing space separated from each other outside the first gas injection part and the first gas discharge part. . According to claim 2, Between the closure cap and the lid, Ball milling container is formed of a material having an elastic force, characterized in that the sealing member is provided to disconnect the sealed space from the outside. According to claim 3, wherein the container body, Ball milling container, characterized in that the partition container for partitioning the chamber into a plurality of spaces. The ball milling container of claim 4, wherein the partition container is fixed inside the chamber. According to claim 4, One side of the compartment container, Ball milling container characterized in that the fitting portion is fitted to one side of the chamber to limit the movement in the chamber. The method of claim 4, wherein one side of the lid, Ball milling container characterized in that the pressing portion is provided to press the one side of the compartment container to limit the movement of the compartment container. The ball milling container of claim 7, wherein the pressing part has a height corresponding to a distance spaced from an upper surface of the compartment container to a lower surface of the lid. The method of claim 7, wherein one end of the pressing portion, Ball milling container characterized in that the elastic portion for generating an elastic restoring force to provide pressure to the compartment container The method of claim 4, wherein the compartment container, Compartment main body for partitioning the chamber to form a compartment chamber, Ball milling container comprising a compartment lid for selectively shielding the compartment chamber. The method of claim 10, wherein the compartment lid side, Ball milling container, characterized in that the gas guide means for selectively communicating with the compartment chamber and the chamber. The method of claim 11, wherein the gas guide means, A second gas injection part to enable gas injection into the compartment chamber; A second gas discharge unit is provided to discharge the gas inside the compartment chamber to the outside, And the second gas injection portion and the second gas discharge portion are shorter than the length of the pressurization portion.

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