KR20200013832A - Manufacturing method of cemented carbide bead - Google Patents

Abstract

The present invention relates to a device for manufacturing a cemented carbide bead and, more specifically, to a device for manufacturing a cemented carbide bead, which has an ultra-small size and uses ion substitution and electric charges (or static electricity). To this end, according to the present invention, the device for manufacturing a cemented carbide bead comprises: a stirring tank preparing a slurry by inputting a bead molding material and stirring the input bead molding material; a vacuum tank arranged adjacent to the stirring tank to remove bubbles in the slurry discharged from the stirring tank through a first transfer pipe; a second transfer pipe having one end connected to the vacuum tank and transferring the slurry discharged from the vacuum tank; a nozzle unit connected and installed on the other end of the second transfer pipe and dropping the slurry transferred from the second transfer pipe; a first reaction vessel in which a space for accommodating a reaction solution is formed, a lower portion is provided to be tapered inwards, and the slurry dropped on the reaction solution from the nozzle unit is solidified to produce beads; and a second reaction vessel which is provided apart from the lower portion of the first reaction vessel, and collects the beads from the first reaction vessel through a third transfer pipe.

Description

Carbide Bead Manufacturing Equipment {Manufacturing method of cemented carbide bead}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cemented carbide bead manufacturing apparatus, and more particularly, to a cemented carbide cemented beads manufacturing apparatus utilizing ion substitution reaction and charge (or static electricity).

In general, cemented carbide beads are used to obtain the target particles of cemented carbide material through pulverized dispersion by mixing tungsten carbide (WC) and cobalt (Co) or nickel (Ni), which are the main constituent materials of cemented carbide.

In general, in order to pulverize and disperse the cemented carbide material, it is pulverized and dispersed through a ball mill or vertical mill, and the cemented carbide beads used therein are 6 mm in size.

However, in order to produce high quality cemented carbide tools, it is necessary to use particles that are ground and dispersed to 0.2-0.3um or even 0.1um at a particle size of 0.5um.

Currently, 0.2-0.3um or 0.1um particles cannot be obtained in a ball mill or vertical mill using 6.0mm cemented carbide beads, so the first milling is performed in a ball mill or vertical mill using 6.0mm cemented carbide beads, and 0.1-0.3mm ultra small It should be obtained by secondary grinding in horizontal mills or basket mills using size cemented carbide beads.

However, the cemented carbides have very high hardness, so that when they are pulverized by using zirconia beads used for conventional grinding dispersion, the hardness of zirconia beads is lower than that of cemented carbide materials. Difficulty in securing

On the other hand, a method for producing by a drop method is disclosed as a general bead manufacturing method, which is made by pulverizing and dispersing the raw material to the target particle size to make a slurry state, by putting a certain amount of binder in the slurry to melt and then through a nozzle of a certain size It is a method of spheroidizing and solidifying by dropping a small drop into the reaction solution through the ion substitution reaction.

However, when the cemented carbide is used as a material, it is impossible to produce beads of a desired ultra-sized size by this method, and the uniformity and sphericity of the bead sizes are remarkably degraded.

Therefore, there is a need for development of a cemented carbide bead manufacturing apparatus having a very small size having a uniform shape, a uniform size, and high productivity using a cemented carbide having a higher density and hardness than a conventional bead material (zirconia, etc.).

Korean Patent Registration No. 10-1545346

The present invention is to solve the above problems, it is possible to produce a super-alloy beads of a very small size that is the target size when manufacturing beads, and to provide a cemented carbide bead manufacturing apparatus that can produce a carbide carbide beads of uniform shape and uniform size. It aims to do it.

The problem to be solved by the present invention is not limited to the above-mentioned problem, another problem to be solved by the present invention not mentioned herein is to those skilled in the art from the following description. It will be clearly understood.

Carbide alloy bead production apparatus of the present invention for achieving the above object is a stirring tank for preparing a slurry by injecting a bead molding material and stirring; A vacuum tank arranged adjacent to the stirring tank to remove bubbles of the slurry discharged through the first transfer pipe from the stirring tank; A second transfer pipe having one end connected to the vacuum tank to transfer the slurry discharged from the vacuum tank; A nozzle unit connected to the other end of the second transfer pipe and dropping the slurry transferred from the second transfer pipe; A first reaction vessel having a space for accommodating a reaction solution therein, having a lower portion tapered inwardly, and solidifying a slurry dropped from the nozzle portion to the reaction solution; And a second reaction vessel provided spaced below the first reaction vessel and collecting beads from the first reaction vessel through a third transfer pipe.

In addition, the cemented carbide bead manufacturing apparatus of the present invention is provided on one side of the first conveying pipe, the transfer pump for transferring the slurry of the stirring tank to the vacuum tank; And a first filter formed through the first transport pipe and filtering the slurry in the first transport pipe.

In addition, the cemented carbide bead manufacturing apparatus of the present invention, provided on one side of the second transfer pipe, the fixed-quantity supply pressure pump for supplying a fixed amount of slurry; A second filter formed through the second conveying tube and filtering the slurry in the second conveying tube; It is provided on the other side of the second conveying pipe, the controller for adjusting the amount of slurry supplied to the nozzle portion; characterized in that it further comprises.

In addition, the nozzle unit of the cemented carbide bead manufacturing apparatus of the present invention, one side of the supply pipe is connected to the second transfer pipe, the supply pipe receives the slurry from the second transfer pipe; A control valve formed through the supply pipe and provided with an on / off valve to determine supply of slurry; A nozzle block connected to the lower end of the supply pipe and having a 'Λ' shape to taper outward; And a plurality of nozzles formed along the outermost surface of the nozzle block and dropping the slurry.

In addition, the cemented carbide bead manufacturing apparatus of the present invention, the negative electrode plate is provided in the inner center of the first reaction vessel, the plurality of discharge holes formed along the outermost surface therein; The negative electrode plate is located at the center, and the bars extending in the horizontal direction at both ends of the negative electrode plate is formed, both ends of the bar is provided in a '∩' shape of the ring shape, the negative electrode plate is inserted into the top of the first reaction vessel Government; characterized in that it further comprises.

In addition, the cemented carbide bead manufacturing apparatus of the present invention, characterized in that it further comprises a non-conductive solution provided on top of the reaction solution accommodated in the first reaction vessel.

In addition, the cemented carbide bead manufacturing apparatus of the present invention, the first reaction vessel further includes a charge supply unit, the charge supply unit, supplying a positive charge to the nozzle unit according to a predetermined condition, the predetermined condition according to the The negative charge is supplied to the first reaction vessel.

In addition, the second reaction vessel of the cemented carbide bead manufacturing apparatus of the present invention, the space is provided, the collecting vessel for collecting the beads delivered through the third conveying pipe; A washing unit provided at an upper portion of the collecting container and performing washing with water; A dryer arranged side by side with the collecting container to dry the beads washed in the washing part; And a conveyor belt provided at a lower end of the collection container and the dryer to enable movement of the beads.

In addition, the cemented carbide bead manufacturing apparatus of the present invention, is provided in the lower portion of the second reaction vessel, the circulation pipe connected to the upper portion of the first reaction vessel from the lower portion of the second reaction vessel; A circulation pump installed at one side of the circulation pipe to transfer a solution inside the circulation pipe to an upper portion of the first reaction vessel; And a water level control pipe provided under the first reaction vessel and discharging a predetermined amount of solution to the second reaction vessel when the circulation pump is operated.

According to the present invention, it is possible to produce a cemented carbide beads of a very small size through a drop-type ion substitution reaction using a charge (or electrostatic) when the beads are manufactured.

In addition, according to the present invention, there is an effect that can produce a cemented carbide beads having a uniform size and high sphericity.

1 is an exemplary view showing the structure of a cemented carbide bead manufacturing apparatus according to the present invention.
Figure 2 is a partially enlarged view showing a stirring tank and a vacuum tank of the cemented carbide beads manufacturing apparatus according to the present invention.
Figure 3 is a partially enlarged view showing the nozzle portion of the cemented carbide beads manufacturing apparatus according to the present invention.
Figure 4 is a bottom view showing the nozzle portion of the cemented carbide beads manufacturing apparatus according to the present invention.
Figure 5 is a partially enlarged view showing a first reaction vessel of the cemented carbide beads manufacturing apparatus according to the present invention.
Figure 6 is a bottom view showing the nozzle portion and the negative plate of the cemented carbide beads manufacturing apparatus according to the present invention.
7 is a partially enlarged view showing a negative electrode plate and a negative electrode plate fixing part of the cemented carbide beads manufacturing apparatus according to the present invention, 7a is a perspective view of the negative electrode plate and the negative plate fixing portion, 7b is a side view seen from the side.
Figure 8 is a partially enlarged view showing a second reaction vessel of the cemented carbide beads manufacturing apparatus according to the present invention.

Specific matters including the problem to be solved, the means for solving the problem, and the effects of the present invention as described above are included in the following embodiments and the drawings. Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

The scope of the present invention is not limited to the embodiments described below, and may be variously modified and implemented by those skilled in the art without departing from the technical gist of the present invention.

Hereinafter, the cemented carbide bead manufacturing apparatus of the present invention will be described in detail with reference to the accompanying Figures 1 to 8.

The cemented carbide bead manufacturing apparatus of the present invention is a stirring tank (10) for preparing a slurry by injecting and then mixing the bead molding material as shown in Figure 1 to 8, the stirring tank 10 is arranged adjacent to the stirring Vacuum tank 30 for removing the bubbles of the slurry discharged through the first transfer pipe 20 from the tank 10, one end is connected to the vacuum tank 30, the slurry discharged from the vacuum tank 30 The second conveying pipe 40 for transporting the nozzle, the nozzle portion 50 is connected to the other end of the second conveying pipe 40 and the slurry transferred from the second conveying pipe 40, the reaction solution therein The first reaction vessel 70, the first reaction is formed to form a space for accommodating the lower portion is tapered toward the inside and to solidify the slurry dropped to the reaction solution from the nozzle unit 50, the first reaction It is provided spaced below the container 70 and the It comprises a second reaction vessel 100 for collecting the beads from the first reaction vessel 70 through the third transfer pipe (90).

First, the stirring tank 10 may have a polygonal shape such as a quadrangle as well as a circular cross section as shown in FIGS. 1 and 2. However, it is preferable that the material accommodated therein has a circular cross-section in order to facilitate washing while remaining less residue in the stirring tank 10.

The material of the present invention is a fluid slurry, which includes raw materials (tungsten carbide, cobalt, nickel crushed and dispersed products or cemented carbide scraps), distilled water and additives (dispersants, binders, etc.). 10) It is injected into the space inside.

As shown in FIG. 2, a first impeller stirring motor 12 for rotating the first impeller 11 and the first impeller 11 having a plurality of wings is formed inside the stirring tank 10. ) May be provided. The first impeller 11 may be rotated at a predetermined speed by the first impeller stirring motor 12, and the slurry may be flowed to remove bubbles therein and at the same time maintain a constant viscosity of the slurry. To increase the stability.

Next, the lower portion of the stirring tank 10 is penetrated and connected to the first transfer pipe 20.

As shown in Figures 1 to 2, the first transfer pipe 20 is provided in a tubular shape, one end is connected to the lower portion of the stirring tank 10, the other end is a vacuum tank which will be described later It is connected to the upper portion of the 30, receives the slurry into the stirring tank 10 serves to transfer to the vacuum tank (30).

On the other hand, the first transfer pipe 20 is provided on one side through the transfer pump 21 and the first transfer pipe 20 for transferring the slurry of the stirring tank 10 to the vacuum tank 30 It may include a first filter 22 formed to filter the slurry in the first transfer pipe.

The transfer pump 21 transfers a predetermined amount of slurry through the inside of the first transfer pipe 20 to the vacuum tank 30 for a predetermined time, and the first filter 22 supplies the first filter 22 to the vacuum tank 30. 1 The slurry moving to the inside of the transfer pipe 20 is filtered to remove raw materials, unmelted additives and residual debris that have not been pulverized to the desired size in the slurry.

Next, the vacuum tank 30 is arranged adjacent to the stirring tank 10, is connected to the first transfer pipe (20).

As shown in Figure 1 and 2, the vacuum tank 30 may have a circular cross-section, such as a shape of the stirring tank 10, of course, may have a polygonal shape such as a square.

In addition, as shown in Figure 2, the inside of the vacuum tank 30, the second impeller (31) having a plurality of wings, and the second impeller for stirring to rotate the second impeller (31) A motor 32 and a vacuum pump 33 for maintaining the inside of the vacuum tank 30 in a vacuum state.

The second impeller 31 may be rotated at a predetermined speed by the second impeller agitating motor 32, and the slurry may be flowed to remove bubbles therein and at the same time maintain a constant viscosity of the slurry. To increase the stability.

On the other hand, the vacuum pump 33 is provided on one side of the vacuum tank 30, serves to maintain the inside of the vacuum tank 30 in a vacuum state.

The vacuum tank 30 may further include a suction bottle and a compression compressor in order to smoothly maintain the vacuum state therein.

By maintaining the inside of the vacuum tank 30 in a vacuum state by using the vacuum pump 33, it is generated by the bubbles contained in the material, the rotation of the first impeller 11 and the second impeller 31 The foam | bubble to remove is prevented and the viscosity change of a slurry is prevented.

In addition, when the slurry is made into beads by the substitution reaction, if bubbles are present in the beads, mechanical properties such as strength and toughness of the beads may be lowered. Thus, bubbles are removed to prevent degradation of mechanical properties. Improves compressive strength

Next, the lower portion of the vacuum tank 30 is penetrated and installed in connection with the second transfer pipe 40.

As shown in FIG. 1, the second transfer pipe 40 is provided in a tubular shape, one end of which is connected to the lower portion of the vacuum tank 30, and the other end of the plurality of nozzle units (described later). 50) is connected to the upper portion, and receives the slurry supplied to the vacuum tank 30 to transfer to the nozzle unit (50).

On the other hand, the second transfer pipe 40 is formed on one side of the second transfer pipe 40 is formed through the fixed quantity supply pressure pump 41 and the second transfer pipe 40 for supplying a quantitative slurry. And a second filter 42 for filtering the slurry in the second transfer pipe 40 and the other side of the second transfer pipe 40 to adjust the amount of slurry supplied to the nozzle unit 50. ) May be included.

The fixed quantity supply pressure pump 41 supplies the slurry of the quantity to the second transfer pipe 40 to the nozzle unit 50, and the second filter 43 is inside the second transfer pipe 40. The moving slurry is second filtered.

In addition, the controller 43 regulates the amount of the slurry supplied by the predetermined speed and pressure from the fixed-quantity supply pressure pump 41 by the mass flow controller, and supplies it to the nozzle unit 50.

Next, a nozzle unit 50 connected to the other end of the second transfer pipe 40 is provided. The nozzle unit 50 serves to drop the slurry transferred from the second transfer pipe 40 to the first half container 70 to be described later.

As shown in FIG. 1, a plurality of nozzle units 50 may be provided, and a plurality of nozzle units 50 may be connected to the other end of the second transfer pipe 40.

As shown in FIG. 3, the nozzle unit 50 has a supply pipe 51 having one end connected to the second transfer pipe 40, a control valve 52 provided at the supply pipe 51, and the supply pipe ( The nozzle block 53 connected to the lower end of the 51 and the nozzle 54 formed along the outermost surface are provided at the lower end of the nozzle block 53.

The supply pipe 51 is provided in a tubular shape, connected to the second transfer pipe 40 and provided to extend, and receives the slurry from the second transfer pipe 40.

The control valve 52 may be provided at one side of the supply pipe 51 to stop the supply of slurry from the supply pipe 51 to the nozzle block 53 by a user's operation, or to control the supply to be performed. .

The control valve 52 is further provided with a sensor for measuring the viscosity, it is possible to measure the viscosity of the slurry, to control the supply through the control valve 52 to improve the sphericity of the beads.

As shown in FIG. 3, the nozzle block 53 has a cylindrical shape and is provided in a 'Λ' shape so that the inside thereof is tapered outward. Since the inside of the nozzle block 53 has a 'Λ' shape, the slurry can be smoothly supplied to the nozzle 54 formed at the edge of the nozzle block 53.

A plurality of nozzles 54 are formed and are provided in one row of the outermost edge of the nozzle block 53 as shown in FIG. 4. The slurry supplied through the nozzle block 53 is sprayed and dropped in the form of droplets of a predetermined size by the nozzle 54.

The nozzle 54 is preferably 0.08 to 0.3mm in order to precisely adjust the size of the drop.

In addition, the nozzle 54 is disposed only in the first row of the outermost edge because agglomeration of droplets may occur when the distance to the surrounding nozzle is close, and the nozzle 54 is 10 to 10 for one nozzle block 53. It is preferable to provide 20 pieces.

In addition, an adapter may be further provided at the lower end of the nozzle block 53 so that the nozzle 54 may be easily detached, and thus, when a problem such as clogging of the nozzle 54 occurs, rapid replacement may be possible.

Next, the first reaction vessel 70 is provided below the nozzle unit 50 spaced apart. The first semi-container 70 has a space therein to accommodate the reaction solution 71 to ionize the slurry falling into the reaction solution 71 from the nozzle 54 of the nozzle unit 50. Beads are prepared by solidification via substitution.

As shown in FIGS. 1 and 5, the first reaction vessel 70 may have a circular cross section as well as a polygonal shape, such as a quadrangle. The lower portion of the first reaction vessel 70 may be configured to smoothly collect the beads. It is preferred to have a tapered shape to have a '∨' shape.

The reaction solution 71 accommodated in the first reaction vessel 70 is preferably provided with a solution capable of generating an ion exchange reaction, and may be, for example, a mixture of calcium chloride and distilled water.

On the other hand, the cemented carbide bead manufacturing apparatus of the present invention may use the electric charge in order to obtain the beads of the target size and to maintain the sphericity of the beads when the slurry drop in the nozzle unit 50 and the beads manufacturing. In order to use the electric charge, a negative electrode plate 60 fixed to the inner center of the first reaction vessel 70 and a negative electrode plate fixing part 62 for fixing the negative electrode plate 60 may be further provided. One side of the reaction solution 70 may be further provided with a charge supply unit 80 for supplying charge.

As shown in FIG. 5, a negative electrode plate 60 is arranged under the nozzle unit 50 so as to be symmetrical in the longitudinal direction, and the negative electrode plate 60 is connected to the first reaction vessel by the negative plate fixing part 62. 70) is fixed.

As shown in FIG. 6, the cathode plate 60 has a plurality of discharge holes 61 formed along the outermost surface, and the discharge holes 61 are formed from the nozzles 54 of the nozzle unit 50. In order to smoothly pass the droplets when the slurry falls, the diameter must be larger than the nozzle and provided symmetrically at the position of the nozzle 54.

As shown in FIGS. 7A and 7B, the cathode plate fixing part 62 has a cathode plate 60 positioned at the center thereof and provided with bars extending in a horizontal direction at both ends, and both ends of the bar have a ring shape. It is provided in the 'shape, it is inserted into the upper end of the first reaction vessel 70 enables the fixing of the negative electrode plate (60).

The charge supply unit 80 supplies positive charge to the nozzle block 53 of the nozzle unit 50 according to a predetermined condition as shown in FIG. 5, and is provided at the top center of the first reaction vessel 70. A negative charge is supplied to the negative electrode plate 60 and the reaction solution 71 inside the first reaction vessel 70.

In addition, the charge supply unit 80 may be replaced with an electrostatic generator.

In more detail with reference to FIG. 5, when the positive charge of a predetermined intensity is supplied to the nozzle unit 50 through the charge supply unit 80, it is formed from the nozzle 54 due to the metallic property of the cemented carbide. The falling droplets are positively charged.

When the negative charge of a predetermined intensity is supplied to the negative electrode plate 60 at the center of the upper end of the first reaction vessel through the charge supply unit 80, the positively charged droplets may be dropped, in this case according to the strength of the charge. You can control the size of the droplets and create tiny droplets.

In addition, when the drop is continuously carried out using charge as described above, the strength of the energization may vary according to each nozzle 54 of the nozzle unit 50. If this phenomenon persists, the slurry may be weakly energized. The feed is delayed and the nozzle 54 is blocked.

In order to reduce the clogging of the nozzle and form a drop of a certain size, the negative electrode plate 60 is arranged below the nozzle unit 50 to maintain a uniform negative charge in each nozzle 54. .

On the other hand, the first reaction vessel 70 may further include a non-conductive solution 72 on the upper reaction solution 71.

When the drop of the charge is continuously performed, a portion of the slurry is not dropped by the charge, but a deposition phenomenon may be caused to stick to the needle of the nozzle, which is a metal component, and the deposition phenomenon may occur due to the nozzle 54. The problem arises that the size of the droplets increases due to an increase in the outer diameter (surface area).

In order to prevent the deposition phenomenon, by forming a two-liquid layer by placing a non-conductive solution of an oil layer (kerosene, etc.) on the first reaction vessel 70, it is possible to reduce the interaction of excessive charges.

In addition, a predetermined negative charge may be supplied to the reaction solution 71 of the first reaction vessel 70 through the charge supply unit 80.

Drops falling into the reaction solution 71 is very small and very small weight does not pass through the non-conductive solution, and when the two or three drops agglomerate when a certain weight is formed so that the case falls into the reaction solution 71 In order to solve this problem, by supplying a negative charge to the reaction solution 71 to guide the droplets located at the interface and inside of the non-conductive solution 72 down to solidify the beads in the reaction solution 71 To manufacture.

Next, the lower portion of the first reaction vessel 70 is penetrated and connected to the third transfer pipe 90.

As shown in FIG. 1, the third transfer pipe 90 is provided in a tubular shape, one end of which is connected to the lower portion of the first reaction vessel 70, and the other end of which is a second reaction. It is connected to the upper portion of the container 100, and serves to transfer the beads and the reaction solution 71 from the first reaction vessel 70 to the second reaction vessel (100).

Next, the second reaction vessel 100 is installed in connection with the third transfer pipe (90), to collect and post-treat the beads transferred through the third transfer pipe (90), the reaction solution (71) Circulate).

As shown in FIG. 8, the second reaction container 100 includes a collecting container 101 for collecting beads and a water washing unit 102 and the collecting container 101 provided at an upper end of the second reaction container 100. It may include a dryer 103 arranged side by side on the side.

The collection container 101 may collect the beads and the reaction solution 71 transferred through the third transfer pipe 90 and perform a residual ion replacement reaction by the residual reaction solution 71 for a predetermined time. Make sure

In addition, the collection vessel 101 is a mesh network is installed, the bead moves after washing after a predetermined time, to prevent the bead shape deformation, such as the pressing phenomenon that can occur even with a small amount of loading.

The water washing unit 102, when a predetermined time of the residual ion replacement reaction in the collection container 101 elapses, by spraying distilled water for washing with water at the top of the unreacted reaction solution and other residues on the bead surface Wash with water.

In addition, a conveyor belt 104 is provided at the lower ends of the collection container 101 and the dryer 103 to move the beads collected in the collection container 101 to the dryer.

On the other hand, the circulation for connecting the reaction solution to the circulation pipe 110 and the circulation pipe 110 for circulating the reaction solution 71 by connecting the first reaction vessel 70 and the second reaction vessel 100 The pump 111 may further include.

The circulation pipe 110 is provided in a tubular shape, is connected to the upper portion of the first reaction vessel 70 from the lower portion of the second reaction vessel 100, the second reaction vessel 70 from the second The reaction solution 71 lowered into the reaction vessel 100 is re-transmitted by the operation of the circulation pump 111 to maintain the level of the reaction solution 71 in the first reaction vessel 70 at a constant level. Play the role of making (71) reusable;

At this time, a separate water level control pipe 120 is provided in a tubular shape, by connecting the lower portion of the first reaction vessel 70 and the upper portion of the second reaction vessel 100, by the operation of the circulation pump 111 When the reaction solution 71 is moved to the circulation pipe 110, a predetermined amount of the reaction solution 71 is discharged so that the reaction solution 71 and the non-conductive solution 72 in the first reaction vessel 70 do not overflow.

In addition, the first reaction vessel 70 may be further provided with a level sensor for sensing the water level of the reaction solution 71, it can be determined whether the operation of the circulation pump 111 by the level sensor.

The cemented carbide bead manufacturing apparatus of the present invention described above can produce cemented carbide beads of a very small size through a drop-type ion substitution reaction using charge (or static electricity) when the beads are prepared, and have a uniform size and high sphericity. It is possible to produce cemented carbide beads having.

As such, the technical configuration of the present invention described above will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.

Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the appended claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from an equivalent concept should be construed as being included in the scope of the present invention.

10. Stirring tank 11. 1st impeller
12. 1st impeller stirring motor 20. 1st feed pipe
21. Transfer pump 22. First filter
30. Vacuum tank 31. Second impeller
32. Motor for stirring 2nd impeller 33. Vacuum pump
40. Second conveying pipe 41. Pressure supply pump
42. Second filter 43. Controller
50. Nozzle 51. Supply pipe
52. Control valve 53. Nozzle block
54.Nozzle 60.Negative plate
61.Exhaust hole 62.Negative plate fixing part
70. First reaction vessel 71. Reaction solution
72. Non-conductive solution 80. Charge supply
90. Third conveyance pipe 100. Second reaction vessel
101. Collection container 102. Hand wash
103. Dryers 104. Conveyor Belts
110. Circulation piping 111. Circulation pump
120. Water level control piping

Claims (9)

A stirring tank for adding a bead molding material and stirring to prepare a slurry;
A vacuum tank arranged adjacent to the stirring tank to remove bubbles of the slurry discharged through the first transfer pipe from the stirring tank;
A second transfer pipe having one end connected to the vacuum tank to transfer the slurry discharged from the vacuum tank;
A nozzle unit connected to the other end of the second transfer pipe and dropping the slurry transferred from the second transfer pipe;
A first reaction vessel having a space for accommodating a reaction solution therein, a lower portion of which is tapered inwardly, and solidifying a slurry dropped from the nozzle portion to the reaction solution;
A cemented carbide bead manufacturing apparatus comprising a second reaction vessel provided spaced below the first reaction vessel and collecting beads from the first reaction vessel through a third transfer pipe. The method of claim 1,
A transfer pump provided at one side of the first transfer pipe to transfer the slurry of the stirring tank to the vacuum tank; And
Cemented carbide beads manufacturing apparatus further comprises; a first filter formed through the first conveying pipe, the first filter for filtering the slurry in the first conveying pipe The method of claim 1,
A fixed-quantity supply pressurizing pump provided on one side of the second transfer pipe to supply a fixed-quantity slurry;
A second filter formed through the second conveying tube and filtering the slurry in the second conveying tube;
Cemented carbide bead manufacturing apparatus further comprises; the controller is provided on the other side of the second conveying pipe, and controls the amount of slurry supplied to the nozzle portion; The method of claim 1,
The nozzle unit,
A supply pipe having one side connected to the second transport pipe and receiving the slurry from the second transport pipe;
A control valve formed through the supply pipe and provided with an on / off valve to determine supply of slurry;
A nozzle block connected to the lower end of the supply pipe and having a 'Λ' shape to taper outward;
Cemented carbide beads manufacturing apparatus comprising a; a plurality is formed along the outermost surface of the nozzle block, the nozzle for dropping the slurry The method of claim 1,
An anode plate provided in the center of the first reaction vessel and having a plurality of discharge holes formed along the outermost surface thereof;
The negative electrode plate is located in the center, the bars extending in the horizontal direction at both ends of the negative electrode plate is formed, both ends of the bar is provided in a '∩' shape of the ring shape, the negative plate plate is installed on the top of the first reaction vessel Carbide alloy bead manufacturing apparatus characterized in that it further comprises; The method of claim 1,
Cemented carbide beads manufacturing apparatus further comprises; non-conductive solution provided on top of the reaction solution accommodated in the first reaction vessel The method of claim 1,
The first reaction vessel further includes a charge supply;
The charge supply unit,
Positive charge is supplied to the nozzle unit according to preset conditions,
Cemented carbide beads production apparatus characterized in that to supply negative charge to the first reaction vessel according to a predetermined condition The method of claim 1,
The second reaction vessel,
A collection container having a space to collect beads transferred through the third transfer pipe;
A washing unit provided at an upper portion of the collecting container and performing washing with water;
A dryer arranged side by side with the collecting container to dry the beads washed in the washing part;
Cemented carbide beads manufacturing apparatus comprising a; conveyor belt provided at the lower end of the collecting container and the dryer, to enable the movement of the beads The method of claim 1,
A circulation pipe provided below the second reaction vessel and connected to an upper portion of the first reaction vessel from a lower portion of the second reaction vessel;
A circulation pump installed at one side of the circulation pipe to transfer a solution inside the circulation pipe to an upper portion of the first reaction vessel;
A cemented carbide bead manufacturing apparatus, further comprising: a water level control pipe provided under the first reaction vessel and discharging a predetermined amount of solution to the second reaction vessel when the circulation pump is operated.

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