KR200303110Y1 - a manufacturing equipment to be make a globe silica to be used EMC - Google Patents

Abstract

The present invention does not have a smooth surface due to its hard hardness when the silica is hardened to a Moh's hardness of 7.0 to produce silica powder by a conventional mill such as ball mill or vibrating mill. For the silica powder which forms a lot of sharp acute angles, the particles of the silica powder are pressed by using Nurm Laura, and the abrasive powder is pressed to change the acute angle of the silica powder to an obtuse angle by the frictional force and the crushing force of the Nurm Laura. The present invention relates to a ball-shaped silica powder manufacturing apparatus, which is a ball mill, a vibrating mill, and other conventional grinding apparatuses, which sphericalizes finely ground silica powder particles to improve the fluidity and dispersibility of the powder. Used for semiconductor package using 70 ~ 90% or more of total weight In addition to maximizing the flowability of EMC products and reducing the wear of high-quality precision molds, it also makes it easy to manufacture large quantities of particles for spherical silica powder particles.

Description

Spherical Silica Powder Manufacturing Device for EMMC {a manufacturing equipment to be make a globe silica to be used EMC}

The present invention relates to an apparatus for producing spherical silica powder for EMS, and in particular, to manufacture silica powder, a solid silica having a Moh's hardness of 7.0 is widely used in ball mills, vibrating mills, and raymond mills. When crushed by a crusher, the silica powder, which has a smooth surface due to its rigid hardness and forms acute angles, is laid with particles of silica powder and acute angle of the silica powder with friction and crushing force using Nurulora. The present invention relates to a silica powder production apparatus for polishing a sphere by changing it to an obtuse angle.

Currently, high purity silica powder is an essential inorganic material of EMC (EPOXY MOLDING COMPOUND), which is used for semiconductor memory chip package due to the development of electric and electronic industry, and the amount of silica powder is 70 ~ 90% of the total weight of EMC. Is increasing day by day.

In particular, EMC must be spherical in shape due to its good flow dispersibility in its manufacture and molding.

However, only the powder manufacturing apparatus used to date does not improve the spherical shape of the silica powder in a large amount, and there is a problem in that it is impossible to remove the sharp acute angle in a large amount.

In order to solve the problems as described above, the present invention aims to be able to manufacture a large amount of the powder having a sharp acute angle by grinding the powder particles that can not remove the sharp acute angle in the grinding device.

In order to achieve the above object, the present invention, the main body connected to the shaft is rotated by the rotation of the drive pulley connected to the motor to press the acute angle crushed silica powder particles injected into the main body to rotate left and right in the press roller. The object is achieved by providing a device capable of producing spherical silica powder by friction with the surface of the Laura and pressing and crushing force of the Laura itself.

1 is a cross-sectional configuration of the present invention.

Figure 2 is a cross-sectional view of the A-A line of the present invention.

3 is a functional diagram showing the operation of the present invention

Figure 4 is an illustration of the shape of the silica powder particles before treatment with the device of the present invention

Figure 5 is an exemplary view of the shape of silica powder particles after treatment with the device of the present invention.

<Description of Signs for Main Parts in Drawings>

1: main body 2: inlet and outlet

3: top cover chute 4: top cover

5: 6: shaft 8: bearing housing

9: drive pulley 10: wear-resistant liner

11: Laura Base 12: Nurmola

13: Filler 14: Wear Resistant Liner

15: Press roller support roll bearing 16: lower cover chute

17: on-off valve 19: support

20: shaft connecting portion 21: rotation drive means

22: outlet

Hereinafter will be described in more detail on the basis of the configuration of the present invention and the effects thereof according to the accompanying drawings.

1 is a cross-sectional configuration of the present invention and Figure 2 is a cross-sectional view of the AA line of the present invention, as shown in Figures 1 to 2 are usually pulverized by a ball mill or a vibrating mill, etc. In a device configured to produce spherical silica powder, which is a filler for EMC, which is one of computer memory and non-memory parts manufacturing raw materials,

A main body 1 having an abrasion resistant liner 10 installed on an inner surface thereof, a roller support 11 formed on a portion of the liner, an inlet discharge port 2 formed on an upper side thereof, and a shaft connecting portion 20 formed on both outer sides thereof;

A press roller 12 having a wear-resistant liner 14 attached thereto and a filler 13 filled therein so as to be rotated from side to side in the main body so as to perform a grinding process on the powder particles;

A bearing housing 8 having bearings installed thereon is installed at the top to connect the shafts 5 and 6 to the shaft connecting portions 20 formed at both sides of the main body 1 to support the main body and to rotate at the same time. A pair of supports 19;

Rotation driving means connected to the motor and the drive pulley 9 by a belt so that the main body 1 is rotated by connecting the shaft 6 connected to the bearing housing 8 of the one side support 19 to the center of the drive pulley 9 21;

An upper and lower cover chute (3) and (16) are installed to allow the main body (1) to be installed outside so as to discharge the polished silica powder particles. 4) is formed and the outlet 22 which is opened and closed by the valve is formed in the lower portion of the lower cover chute (16).

On the other hand, both sides of the pressing roller 12 is provided with a pressing roller supporting roll bearing 15 for supporting the pressing roller.

The operational effects of the present proposal thus constructed will be described in detail as follows.

As shown in FIG. 3, when the power source is turned on, the main body 1 connected to the shaft 6 rotates in one direction while the driving pulley 9 rotates by a belt.

When the main body 1 is rotated, the roller support 11 installed therein is rotated to push the lower end of the pressed roller 12 installed in the main body, and the pressed roller 12 moves in the pushed direction and the pressed roller supporting roll bearing (15) will be rotated about the axis.

Silica powder particles having an acute angle introduced into the main body 1 by the above operation are subjected to the friction and the pressing force by the pressing roller's own weight and the crushing force of the pressing roller due to the rotation and the forward and backward movement of the pressing roller 12. The sharp acute angles formed on the particles of the particles collide with each other and are abraded to produce a spherical silica powder.

Usually, the average particle size of the pulverized silica powder is 25 μm, but the average size of the spherical powder particles is 15 μm due to the frictional force and the crushing force of Nurul.

In order to discharge the particles thus produced, the inlet outlet 2 formed at the top of the body 1 is opened, and then the body 1 is rotated so that the inlet outlet of the body faces downward. It is dropped to the cover chute 16 and is discharged to the outside by opening the outlet 22 of the lower cover chute by the on-off valve 17.

As described above, the present invention requires the silica powder used as a filler for EMC by removing the sharp acute angles formed on the solid silica powder particles having a Moh's hardness of 7.0 and making them into spherical silica. It is an apparatus suitable for improving fluidity and dispersibility.

The present invention devised as described above is a spherical shape of the silica powder particles crushed in a sharp acute shape by the conventional grinding device such as ball mill, vibrating mill to improve the flowability and dispersibility of the powder, and the silica powder 70 ~ of the total weight It not only maximizes the fluidity of EMC products used for semiconductor packages that use more than 90% and reduces the wear of high-quality precision molds, but also makes it easy to manufacture large quantities of spheres for spherical silica powder particles. It also made the effect.

Claims (1)

A device for producing spherical silica powder, which is a filler for EMC, which is one of computer memory and non-memory parts manufacturing raw materials, which is normally crushed by a ball mill or a vibrating mill and crushed into sharp acute shapes. In constructing The wear-resistant liner 10 is installed on the inner surface, and a roller support 11 is formed on a portion of the liner, and an inlet discharge port 2 is formed on the upper side, and a cylindrical main body 1 on which the axial connection part 20 is formed on both outer sides. )Wow; The wear-resistant liner 14 is attached to the surface of the main body 1 and rotates from side to side to abrasion-process the silica powder particles, and the press roller 12 having the filler 13 filled therein. )Wow; A bearing housing 8 having bearings installed thereon is installed at the top to connect the shafts 5 and 6 to the shaft connecting portions 20 formed at both sides of the main body 1 to support the main body and to rotate at the same time. A pair of supports 19; Rotation driving means connected to the motor and the drive pulley 9 by a belt so that the main body 1 is rotated by connecting the shaft 6 connected to the bearing housing 8 of the one side support 19 to the center of the drive pulley 9 21; An upper and lower cover chute (3) and (16) are installed to allow the main body (1) to be installed outside so as to discharge the polished silica powder particles. 4) is formed and the spherical silica powder manufacturing apparatus for the EMS type, characterized in that the outlet 22 which is opened and closed by a valve formed in the lower portion of the lower cover chute 16