A preparation process of cobalt-antimony alloy material

Abstract

The invention belongs to the technical field of cobalt-antimony alloy preparation, and specifically is a preparation process of a cobalt-antimony alloy material. The preparation process of the cobalt-antimony alloy material described in the invention comprises the following steps: by setting a mold, and by using the mold and a spark plasma sintering device, a mixed cobalt-antimony powder is put into the mold, and the inner cavity of the mold is the shape and size required by the required cobalt-antimony alloy material; then, the spark plasma sintering device is used to sinter the cobalt-antimony powder to form a cobalt-antimony alloy; then, after the sintering is completed, the mold is taken out of the spark plasma sintering device, and after cooling, the mold is opened to take out the sintered solid cobalt-antimony alloy; the prepared cobalt-antimony alloy material directly meets the required shape and size, and does not need to be processed accordingly, and the simplified process flow is conducive to improving the preparation efficiency of the cobalt-antimony alloy material.

Description

Technical Field

[0001] The invention belongs to the technical field of cobalt-antimony alloy preparation, in particular to a preparation process of a cobalt-antimony alloy material. Background Art

[0002] Cobalt, element symbol Co, atomic number 27, atomic weight 58.9332, close-packed hexagonal crystal, located in the 4th period and Group VIII in the periodic table; it is a shiny steel-gray metal, relatively hard and brittle, ferromagnetic, and its magnetism disappears when heated to 1150°C; antimony is a metallic element, element symbol Sb, atomic number 51, a silvery-white, shiny, hard and brittle metal; alloys prepared from cobalt and antimony are currently commonly used thermoelectric materials.

[0003] The existing cobalt-antimony alloy material is prepared through the process of vacuum melting - annealing - crushing - sintering. In the actual preparation process, the shape and size of the cobalt-antimony alloy material required have precise requirements; therefore, after the cobalt-antimony alloy material is sintered, it needs to undergo subsequent processing to achieve the required shape and size, which makes the entire process more cumbersome.

[0004] To this end, the present invention provides a preparation process of a cobalt-antimony alloy material. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a preparation process of a cobalt-antimony alloy material according to the present invention comprises the following steps:

[0007] S1. Take cobalt powder and antimony powder of specified content in a ratio of 1:3, put the cobalt powder and antimony powder into a mixing device, and take them out after they are evenly mixed;

[0008] S2, putting the uniformly mixed powder mixture into a powder grinder, and simultaneously filling the grinder with inert gas during grinding;

[0009] S3, putting the ground mixed powder into a mold, then placing the mold into a spark plasma sintering device, setting the sintering environment to vacuum; sintering time 3 to 10 minutes; temperature controlled at 200 to 600 degrees Celsius; sintering pressure controlled at 40 to 1000 MPa;

[0010] S4. After sintering is completed, the mold is taken out from the spark plasma sintering equipment, and after cooling, the mold is opened to take out the sintered solid cobalt-antimony alloy.

[0011] Preferably, the mixing equipment includes a mixing box, and a plurality of supporting legs are arranged around the center of the bottom end of the mixing box; an output motor is installed at the center of the bottom end of the mixing box, and the output end of the output motor passes through the interior of the mixing box, and a rotating shaft is arranged at the top of the output end of the output motor, and a pair of stirring frames are arranged on the side of the rotating shaft, and a cross bar is arranged at the top of the rotating shaft, and a docking barrel is symmetrically arranged at both ends of the cross bar based on the center, a first connecting piece is arranged between the receiving barrel and the cross bar, the bottom end of the receiving barrel is arranged to be conical, and the bottom end of the receiving barrel is connected to a discharge pipe.

[0012] Preferably, a mounting bracket is provided at the top of the receiving barrel, a driving motor is installed at the top of the mounting bracket, a spiral rod is provided at the bottom of the output end of the driving motor, the bottom end of the spiral rod is inserted into the discharge pipe, and the diameter of the spiral rod is the same as the inner diameter of the discharge pipe.

[0013] Preferably, a pair of mounting plates are symmetrically arranged on the annular inner wall of the mixing box based on the center, a support spring is arranged on the side of the mounting plate facing the center of the mixing box, and a receiving block is arranged on the end of the support spring away from the mounting plate; when the receiving barrel is driven to rotate by the cross bar, it intermittently collides with the receiving block.

[0014] Preferably, an annular groove is provided on the side of the material receiving barrel, and the first connecting piece includes an annular part and an L-shaped part, the annular part is inserted in the annular groove, one end of the L-shaped part is connected to the side of the annular part, and the other end is connected to the top surface of the cross bar; a rubber ring is sleeved on the side of the material receiving barrel and is located at the same height as the receiving block.

[0015] Preferably, a plurality of balls are connected to the top end of the annular portion of the first connecting member in an annular rotational manner.

[0016] Preferably, a pair of cover plates are symmetrically arranged on the top of the material receiving barrel based on the mounting frame, and a pair of fixing barrels are symmetrically arranged on the side of the material receiving barrel based on the mounting frame. A connecting frame is inserted into the interior of the fixing barrel, and the end of the connecting frame away from the fixing barrel is connected to the top surface of the cover plate.

[0017] Preferably, a first partition is provided inside the receiving barrel, the center of the first partition is penetrated by the top end of the rotating shaft, a second partition is provided on the outer side of the first partition, the second partition is at the same height as the first partition, and there is a gap between the second partition and the first partition, an annular plate is inserted in the gap, a linkage frame is provided between the bottom surface of the first partition and the bottom surface of the second partition, and the bottom end of the discharge pipe penetrates the annular plate.

[0018] Preferably, the mixing box comprises a lower part and an upper part, the bottom end of the upper part and the top end of the lower part are butt-jointed to form the mixing box; and a plurality of second connecting members are arranged between the upper part and the lower part.

[0019] Preferably, the second connecting member includes a hydraulic cylinder and a connecting rod, the hydraulic cylinder is installed on the side of the lower part, the bottom end of the connecting rod is connected to the top end of the hydraulic cylinder output end, and the top end of the connecting rod is connected to the side of the upper part.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. A preparation process of a cobalt-antimony alloy material described in the present invention comprises the following steps: setting a mold, using the mold and a spark plasma sintering device, and putting the mixed cobalt-antimony powder into the mold, wherein the inner cavity of the mold is the shape and size required for the required cobalt-antimony alloy material; then sintering the cobalt-antimony powder through the spark plasma sintering device to form a cobalt-antimony alloy; and then taking the mold out of the spark plasma sintering device after sintering, opening the mold after cooling, and taking out the sintered solid cobalt-antimony alloy; the prepared cobalt-antimony alloy material directly meets the required shape and size, and does not need to be processed accordingly, and the simplified process flow is conducive to improving the preparation efficiency of the cobalt-antimony alloy material.

[0022] 2. The preparation process of a cobalt-antimony alloy material described in the present invention comprises the following steps: providing a receiving cylinder, and when mixing cobalt powder and antimony powder; respectively putting a certain amount of cobalt powder and antimony powder into the receiving cylinders at both ends of a cross bar; then gradually stacking the powders on each other in a mixing box through the receiving cylinder, and then stirring and mixing the stacked powders by rotating a stirring rack. During the stirring process, the cobalt powder and antimony powder have been preliminarily stacked and mixed on each other, so the cobalt powder and antimony powder can be quickly stirred and mixed evenly by the stirring rack, thereby improving the mixing efficiency of the cobalt powder and the antimony powder, which is beneficial to further improving the preparation efficiency of the cobalt-antimony alloy material. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a process flow chart of the present invention;

[0025] Figure 2 is an overall schematic diagram of the mixing device of the present invention;

[0026] Figure 3 The present invention Figure 2 The enlarged schematic diagram of part A in the middle;

[0027] Figure 4 It is a schematic diagram of the lower part of the mixing box of the present invention;

[0028] Figure 5 It is a schematic diagram of the crossbar connection structure of the present invention;

[0029] Figure 6 The present invention Figure 5The enlarged schematic diagram of part B in the middle;

[0030] Figure 7 It is a side schematic diagram of the material receiving barrel of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the material receiving barrel of the present invention;

[0032] Fig. 9 It is a schematic diagram of a material receiving barrel of the present invention;

[0033] Fig.10 It is a schematic diagram of the internal structure of the material receiving barrel of the present invention;

[0034] Fig.11 It is a schematic diagram of the positions of the first partition and the second partition of the present invention;

[0035] Fig.12 The present invention Fig.11 Enlarged schematic diagram of part C in the middle.

[0036] In the figure: 1. mixing box; 10. lower part; 11. upper part; 2. rotating shaft; 21. stirring frame; 22. cross bar; 3. receiving barrel; 31. first connecting piece; 32. discharging pipe; 33. screw rod; 34. mounting frame; 35. driving motor; 36. annular groove; 4. mounting plate; 41. supporting spring; 42. receiving block; 43. rubber ring; 5. cover plate; 51. fixing barrel; 52. connecting frame; 6. first partition plate; 61. second partition plate; 62. annular plate; 63. linkage frame; 7. hydraulic cylinder; 71. connecting rod. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figure 1 As shown, a preparation process of a cobalt-antimony alloy material according to an embodiment of the present invention comprises the following steps:

[0039] S1. Take cobalt powder and antimony powder of specified content in a ratio of 1:3, put the cobalt powder and antimony powder into a mixing device, and take them out after they are evenly mixed;

[0040] S2, putting the uniformly mixed powder mixture into a powder grinder, and simultaneously filling the grinder with inert gas during grinding;

[0041] S3, putting the ground mixed powder into a mold, then placing the mold into a spark plasma sintering device, setting the sintering environment to vacuum; sintering time 3 to 10 minutes; temperature controlled at 200 to 600 degrees Celsius; sintering pressure controlled at 40 to 1000 MPa;

[0042] S4, after sintering is completed, the mold is taken out from the spark plasma sintering equipment, and after cooling, the mold is opened to take out the sintered solid cobalt-antimony alloy;

[0043] The existing cobalt-antimony alloy material is prepared through the process of vacuum melting-annealing-crushing-sintering. In the actual preparation process, the shape and size of the cobalt-antimony alloy material required have precise requirements; therefore, after the cobalt-antimony alloy material is sintered and formed, it needs to undergo subsequent processing to achieve the required shape and size, which makes the whole process more complicated. To solve the above problems, the embodiment of the present invention uses a mold and a spark plasma sintering device; when in use, the following steps are performed:

[0044] S1. Take cobalt powder and antimony powder of specified content in a ratio of 1:3, put the cobalt powder and antimony powder into a mixing device, and take them out after they are evenly mixed;

[0045] S2, putting the uniformly mixed powder mixture into a powder grinder, and simultaneously filling the grinder with inert gas during grinding;

[0046] S3, putting the ground mixed powder into a mold, then placing the mold into a spark plasma sintering device, setting the sintering environment to vacuum; sintering time 3 to 10 minutes; temperature controlled at 200 to 600 degrees Celsius; sintering pressure controlled at 40 to 1000 MPa;

[0047] S4, after sintering is completed, the mold is taken out from the spark plasma sintering equipment, and after cooling, the mold is opened to take out the sintered solid cobalt-antimony alloy;

[0048] By using a mold and a spark plasma sintering device, the mixed cobalt-antimony powder is put into the mold, and the inner cavity of the mold is the shape and size required for the required cobalt-antimony alloy material; then, the cobalt-antimony powder is sintered through the spark plasma sintering device to form a cobalt-antimony alloy, and then after the sintering is completed, the mold is taken out of the spark plasma sintering device, and after cooling, the mold is opened to take out the sintered solid cobalt-antimony alloy; the prepared cobalt-antimony alloy material directly meets the required shape and size, and does not need to be processed accordingly, and the simplified process flow is conducive to improving the preparation efficiency of the cobalt-antimony alloy material.

[0049] like Figures 2 to 6As shown, the mixing equipment includes a mixing box 1, and a plurality of supporting legs are arranged around the center of the bottom end of the mixing box 1; an output motor is installed at the center of the bottom end of the mixing box 1, and the output end of the output motor passes through the inside of the mixing box 1, and a rotating shaft 2 is arranged at the top of the output end of the output motor, and a pair of stirring frames 21 are arranged on the side of the rotating shaft 2, and a cross bar 22 is arranged at the top of the rotating shaft 2, and a docking barrel 3 is symmetrically arranged at both ends of the cross bar 22 based on the center, and a first connecting piece 31 is arranged between the receiving barrel 3 and the cross bar 22, and the bottom end of the receiving barrel 3 is arranged in a cone shape, and a discharge pipe 32 is arranged at the bottom end of the receiving barrel 3; when mixing cobalt powder and antimony powder; the quantitative cobalt powder and antimony powder are respectively put into the receiving barrel 3 at both ends of the cross bar 22, and then the output motor at the bottom of the mixing box 1 is started. The output motor drives the rotating shaft 2 to rotate, and the rotating shaft 2 drives the stirring frame 21 to rotate inside the mixing box 1, and the powder entering the receiving barrel 3 falls into the discharge pipe 32 through the conical structure at the bottom, and then falls downward into the mixing box 1 through the discharge pipe 32, and as the rotating shaft 2 drives the cross bar 22 to rotate, the receiving barrel 3 rotates synchronously in the mixing box 1, and the powders falling from the discharge pipe 32 are gradually stacked on each other, and then the stacked powders are stirred and mixed by the rotating stirring frame 21. Since the cobalt powder and the antimony powder have been initially stacked and mixed with each other during the stirring process, the cobalt powder and the antimony powder can be quickly stirred and mixed evenly by the stirring frame 21, thereby improving the mixing efficiency of the cobalt powder and the antimony powder, which is beneficial to further improve the preparation efficiency of the cobalt-antimony alloy material.

[0050] like Figures 8 to 10 As shown, a mounting bracket 34 is provided at the top of the material receiving barrel 3, and a driving motor 35 is installed at the top of the mounting bracket 34. A spiral rod 33 is provided at the bottom end of the output end of the driving motor 35, and the bottom end of the spiral rod 33 is inserted into the discharge pipe 32, and the diameter of the spiral rod 33 is the same as the inner diameter of the discharge pipe 32; when powder is added to the mixing box 1 through the material receiving barrel 3, the driving motor 35 is started, and the output end of the driving motor 35 drives the spiral rod 33 to rotate. Since the bottom end of the spiral rod 33 is inserted into the discharge pipe 32, and the diameter of the spiral rod 33 is the same as the inner diameter of the discharge pipe 32; therefore, the powder inside the material receiving barrel 3 will stably enter the discharge pipe 32 through the rotation of the spiral rod 33, and finally be discharged through the discharge pipe 32. During the entire discharge process of the discharge pipe 32, the spiral rod 33 can stably transport the powder into the discharge pipe 32 to avoid uneven falling of the powder through the discharge pipe 32, which affects the mutual stacking effect of the cobalt powder and the antimony powder.

[0051] like Figure 5 to Figure 6As shown, a pair of mounting plates 4 are symmetrically arranged on the annular inner wall of the mixing box 1 based on the center, a supporting spring 41 is arranged on the side of the mounting plate 4 facing the center of the mixing box 1, and a receiving block 42 is arranged on the end of the supporting spring 41 away from the mounting plate 4; when the receiving barrel 3 is driven to rotate by the cross bar 22, it intermittently collides with the receiving block 42; when the receiving barrel 3 rotates, the surface intermittently collides with the receiving block 42, causing the receiving barrel 3 to vibrate intermittently, and the vibrating receiving barrel 3 causes the internal powder to concentrate to the middle position, and then fully driven into the discharge pipe 32 through the spiral rod 33, ensuring that the powder inside the receiving barrel 3 stably falls through the discharge pipe 32.

[0052] like Figures 6 to 10 As shown, an annular groove 36 is provided on the side of the material receiving barrel 3, and the first connecting member 31 includes an annular portion and an L-shaped portion. The annular portion is inserted into the annular groove 36, one end of the L-shaped portion is connected to the side of the annular portion, and the other end is connected to the top surface of the cross bar 22; a rubber ring 43 is sleeved on the side of the material receiving barrel 3 and is located at the same height as the receiving block 42; when the material receiving barrel 3 collides with the receiving block 42, the rubber ring 43 will actively contact the receiving block 42, and in the process of the material receiving barrel 3 and the receiving block 42 being staggered, the rubber ring 43 will be subjected to tangential friction; since the annular portion of the first connecting member 31 is inserted into In the annular groove 36, when the rubber ring 43 is subjected to tangential friction, the rubber ring 43 will drive the receiving barrel 3 to rotate relative to the annular part of the first connecting member 31, and the receiving barrel 3 is fixed to the end of the cross bar 22 through the L-shaped part of the first connecting member 31; the annular part of the first connecting member 31 cooperates with the annular groove 36 to ensure the smooth rotation of the receiving barrel 3; the discharge pipe 32 at the bottom end of the receiving barrel 3 rotates synchronously, and the powder falling off from the discharge pipe 32 is thrown and further dispersed in the mixing box 1, thereby improving the dispersion effect of the powder in the mixing box 1, which is beneficial to increasing the mixing speed of cobalt powder and antimony powder.

[0053] The top end of the annular portion of the first connecting member 31 is connected to a plurality of balls in a circular rotation; when the annular portion of the first connecting member 31 rotates relative to the annular groove 36, the balls at the top end of the annular portion of the first connecting member 31 support the inner wall of the annular groove 36, and the balls roll relative to the inner wall of the annular groove 36 during rotation, thereby reducing the rotational friction resistance between the first connecting member 31 and the annular groove 36, thereby improving the smoothness of the rotation of the receiving barrel 3.

[0054] like Figure 8As shown, a pair of cover plates 5 are symmetrically arranged at the top of the material receiving barrel 3 based on the mounting frame 34, and a pair of fixed barrels 51 are symmetrically arranged on the side of the material receiving barrel 3 based on the mounting frame 34. A connecting frame 52 is inserted into the interior of the fixed barrel 51, and the end of the connecting frame 52 away from the fixed barrel 51 is connected to the top surface of the cover plate 5; after the powder is placed into the inside of the material receiving barrel 3, the cover plate 5 is restricted to the top of the material receiving barrel 3 by using the fixed barrel 51 and the connecting frame 52 in cooperation with each other, and the top of the material receiving barrel 3 is blocked in cooperation with the mounting frame 34 to prevent the powder in the material receiving barrel 3 from floating out when the material receiving barrel 3 rotates with the cross bar 22; it should be pointed out that when the connecting frame 52 is inserted into the interior of the fixed barrel 51, there is friction between it and the inner wall of the fixed barrel 51, thereby stabilizing and restricting the position of the cover plate 5.

[0055] like Figure 11 to Figure 12 As shown, a first partition plate 6 is provided inside the receiving barrel 3, and the center of the first partition plate 6 passes through the top end of the rotating shaft 2, and a second partition plate 61 is provided on the outer side of the first partition plate 6. The second partition plate 61 is at the same height as the first partition plate 6, and there is a gap between the second partition plate 61 and the first partition plate 6, and an annular plate 62 is inserted in the gap. A linkage frame 63 is provided between the bottom surface of the first partition plate 6 and the bottom surface of the second partition plate 61, and the bottom end of the discharge pipe 32 passes through the annular plate 62; when in use, the discharge pipe 32 passes through the annular plate 62, and as the receiving barrel 3 rotates, the discharge pipe 32 synchronously drives the annular plate 62 to rotate in the gap between the second partition plate 61 and the first partition plate 6, and the stirring frame 21 located below the first partition plate 6 mixes the powder, and the first partition plate 6 and the second partition plate 61 cooperate with the annular plate 62 to isolate the area where the powder is stirred, so as to prevent the powder from splashing upward and escaping from the mixing box 1 when being stirred.

[0056] like Figures 2 to 3 As shown, the mixing box 1 includes a lower part 10 and an upper part 11, and the bottom end of the upper part 11 is connected to the top end of the lower part 10 to form the mixing box 1; a plurality of second connecting parts are arranged between the upper part 11 and the lower part 10; when taking out the mixed powder inside the mixing box 1, the connection between the second connecting part and the upper part 11 is contacted, and then the upper part 11 is picked up, and then the first partition plate 6, the second partition plate 61, the annular plate 62 and the upper structure are picked up, and the lower part 10 is leaked out, and the mixed powder is located in the lower part 10, which is convenient for the staff to take out.

[0057] The second connecting member includes a hydraulic cylinder 7 and a connecting rod 71. The hydraulic cylinder 7 is installed on the side of the lower part 10. The bottom end of the connecting rod 71 is connected to the top of the output end of the hydraulic cylinder 7, and the top of the connecting rod 71 is connected to the side of the upper part 11. The hydraulic cylinder 7 cooperates with the connecting rod 71 to ensure that the bottom end of the upper part 11 and the top end of the lower part 10 are tightly connected and combined to prevent powder leakage during use.

[0058] During operation, the mixed cobalt-antimony powder is put into the mold by using a mold and a spark plasma sintering device, and the inner cavity of the mold is the shape and size required for the required cobalt-antimony alloy material; then, the cobalt-antimony powder is sintered by the spark plasma sintering device to form a cobalt-antimony alloy, and then the mold is taken out from the spark plasma sintering device after sintering is completed, and the mold is opened after cooling to take out the sintered solid cobalt-antimony alloy; the prepared cobalt-antimony alloy material directly meets the required shape and size, and does not need to be processed accordingly, and the simplified process flow is conducive to improving the preparation efficiency of the cobalt-antimony alloy material; when the cobalt powder and the antimony powder are mixed; the quantitative cobalt powder and the antimony powder are respectively put into the receiving barrels 3 at both ends of the cross bar 22, and then the mixing box 1 is started. The output motor at the bottom drives the rotating shaft 2 to rotate, and the rotating shaft 2 drives the stirring frame 21 to rotate inside the mixing box 1. The powder entering the receiving barrel 3 falls into the discharge pipe 32 through the conical structure at the bottom, and then falls downward into the mixing box 1 through the discharge pipe 32. As the rotating shaft 2 drives the cross bar 22 to rotate, the receiving barrel 3 rotates synchronously in the mixing box 1, and the powders falling from the discharge pipe 32 are gradually stacked on each other, and then the stacked powders are stirred and mixed by the rotating stirring frame 21. Since the cobalt powder and the antimony powder have been initially stacked and mixed during the stirring process, the cobalt powder and the antimony powder can be quickly stirred and mixed evenly by the stirring frame 21, thereby improving the mixing efficiency of the cobalt powder and the antimony powder, which is beneficial to further improve the preparation efficiency of the cobalt-antimony alloy material.

[0059] When adding powder to the mixing box 1 through the material receiving barrel 3, the driving motor 35 is started, and the output end of the driving motor 35 drives the screw rod 33 to rotate. Since the bottom end of the screw rod 33 is inserted into the discharge pipe 32, and the diameter of the screw rod 33 is the same as the inner diameter of the discharge pipe 32; therefore, the powder inside the material receiving barrel 3 will stably enter the discharge pipe 32 through the rotation of the screw rod 33, and finally be discharged through the discharge pipe 32. During the whole discharge process of the discharge pipe 32, the screw rod 33 can stably transport the powder into the discharge pipe 32, avoiding the powder from passing through The discharge tube 32 drops the material unevenly downward, which affects the mutual stacking effect of the cobalt powder and the antimony powder. When the receiving barrel 3 rotates, the surface intermittently collides with the receiving block 42, causing the receiving barrel 3 to vibrate intermittently. The vibrating receiving barrel 3 causes the internal powder to concentrate to the middle position, and then fully driven into the discharge tube 32 through the spiral rod 33, ensuring that the internal powder of the receiving barrel 3 falls stably through the discharge tube 32. When the receiving barrel 3 collides with the receiving block 42, the rubber ring 43 will actively contact the receiving block 42. During the process of the cylinder 3 and the receiving block 42 being offset, the rubber ring 43 will be subjected to tangential friction; since the annular portion of the first connecting member 31 is inserted into the annular groove 36, when the rubber ring 43 is subjected to tangential friction, the rubber ring 43 will drive the receiving cylinder 3 to rotate relative to the annular portion of the first connecting member 31, and the receiving cylinder 3 is fixed to the end of the cross bar 22 through the L-shaped portion of the first connecting member 31; the annular portion of the first connecting member 31 cooperates with the annular groove 36 to ensure the smooth rotation of the receiving cylinder 3; the discharge pipe 32 at the bottom end of the receiving cylinder 3 rotates synchronously, The powder that falls off from the discharge pipe 32 is shaken and further dispersed in the mixing box 1, thereby improving the dispersion effect of the powder in the mixing box 1, which is beneficial to increasing the mixing speed of the cobalt powder and the antimony powder; when the annular part of the first connecting piece 31 rotates relative to the annular groove 36, the ball at the top of the annular part of the first connecting piece 31 supports the inner wall of the annular groove 36, and the ball rolls relative to the inner wall of the annular groove 36 during rotation, thereby reducing the rotational friction resistance between the first connecting piece 31 and the annular groove 36, and improving the smoothness of the rotation of the receiving barrel 3.

[0060] After the powder is placed inside the receiving barrel 3, the cover plate 5 is restricted to the top of the receiving barrel 3 by using the fixing barrel 51 in conjunction with the connecting frame 52, and the top of the receiving barrel 3 is blocked by the mounting frame 34 to prevent the powder in the receiving barrel 3 from floating out when the receiving barrel 3 rotates with the cross bar 22; when in use, the discharge pipe 32 passes through the annular plate 62, and as the receiving barrel 3 rotates, the discharge pipe 32 synchronously drives the annular plate 62 to rotate in the gap between the second partition plate 61 and the first partition plate 6, and the stirring frame 21 located below the first partition plate 6 mixes the powder, and the first partition plate 6 and the second partition plate 61 cooperate with the annular plate 62 to The area where the powder is stirred is isolated to prevent the powder from splashing upward and escaping from the mixing box 1 when being stirred; when taking out the mixed powder inside the mixing box 1, the second connecting piece is contacted to the connection of the upper part 11, and then the upper part 11 is picked up, and then the first partition 6, the second partition 61, the annular plate 62 and the upper structure are picked up, and the lower part 10 is leaked out. The mixed powder is located in the lower part 10, which is convenient for the staff to take out; the hydraulic cylinder 7 cooperates with the connecting rod 71 to ensure that the bottom end of the upper part 11 and the top end of the lower part 10 are tightly docked and combined to prevent powder leakage during use.

[0061] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A process for preparing a cobalt-antimony alloy material, characterized in that: The following steps are involved: S1. Take cobalt powder and antimony powder of specified content in a ratio of 1:3, put the cobalt powder and antimony powder into a mixing device, and take them out after they are evenly mixed; S2, putting the uniformly mixed powder mixture into a powder grinder, and simultaneously filling the grinder with inert gas during grinding; S3, putting the ground mixed powder into a mold, and then placing the mold into a spark plasma sintering device, setting the sintering environment to vacuum; sintering time 3 to 10 minutes; temperature controlled at 200 to 600 degrees Celsius; The sintering pressure is controlled between 40 and 1000Mpa; S4, after sintering is completed, the mold is taken out from the spark plasma sintering equipment, and after cooling, the mold is opened to take out the sintered solid cobalt-antimony alloy; The mixing device comprises a mixing box (1), wherein a plurality of supporting legs are arranged around the center of the bottom end of the mixing box (1); an output motor is installed at the center of the bottom end of the mixing box (1), the output end of the output motor passes through the interior of the mixing box (1), a rotating shaft (2) is arranged at the top end of the output end of the output motor, a pair of stirring frames (21) are arranged on the side of the rotating shaft (2), a cross bar (22) is arranged at the top end of the rotating shaft (2), a docking barrel (3) is symmetrically arranged at both ends of the cross bar (22) based on the center, a first connecting member (31) is arranged between the receiving barrel (3) and the cross bar (22), the bottom end of the receiving barrel (3) is arranged in a conical shape, and the bottom end of the receiving barrel (3) is connected to a discharge pipe (32); a mounting frame (34) is arranged at the top end of the receiving barrel (3), a driving motor (35) is installed at the top end of the mounting frame (34), and a spiral rod is arranged at the bottom end of the output end of the driving motor (35) (33), the bottom end of the spiral rod (33) is inserted into the discharge pipe (32), and the diameter of the spiral rod (33) is the same as the inner diameter of the discharge pipe (32); the annular inner wall of the mixing box (1) is symmetrically provided with a pair of mounting plates (4), the side of the mounting plate (4) facing the center of the mixing box (1) is provided with a support spring (41), and the end of the support spring (41) away from the mounting plate (4) is provided with a receiving block (42); when the receiving barrel (3) is driven to rotate by the cross bar (22), it intermittently collides with the receiving block (42); an annular groove (36) is provided on the side of the receiving barrel (3), and the first connecting member (31) includes an annular portion and an L-shaped portion, the annular portion is inserted into the annular groove (36), one end of the L-shaped portion is connected to the side of the annular portion, and the other end is connected to the top surface of the cross bar (22); a rubber ring (43) is sleeved on the side of the receiving barrel (3) and located at the same height as the receiving block (42).

2. The process for preparing a cobalt-antimony alloy material according to claim 1, characterized in that: The top end of the annular portion of the first connecting member (31) is connected to a plurality of balls in an annular rotatable manner.

3. The process for preparing a cobalt-antimony alloy material according to claim 1, characterized in that: A pair of cover plates (5) are symmetrically arranged on the top of the material receiving barrel (3) based on the mounting frame (34), and a pair of fixed barrels (51) are symmetrically arranged on the side of the material receiving barrel (3) based on the mounting frame (34). A connecting frame (52) is inserted into the interior of the fixed barrel (51), and the end of the connecting frame (52) away from the fixed barrel (51) is connected to the top surface of the cover plate (5).

4. The process for preparing a cobalt-antimony alloy material according to claim 1, characterized in that: A first partition (6) is arranged inside the receiving barrel (3), and the center of the first partition (6) passes through the top end of the rotating shaft (2). A second partition (61) is arranged on the outer side of the first partition (6), and the second partition (61) is at the same height as the first partition (6). There is a gap between the second partition (61) and the first partition (6), and an annular plate (62) is inserted in the gap. A linkage frame (63) is arranged between the bottom surface of the first partition (6) and the bottom surface of the second partition (61), and the bottom end of the discharge pipe (32) passes through the annular plate (62).

5. The process for preparing a cobalt-antimony alloy material according to claim 4, characterized in that: The mixing box (1) comprises a lower part (10) and an upper part (11), wherein the bottom end of the upper part (11) and the top end of the lower part (10) are butt-jointed to form the mixing box (1); a plurality of second connecting members are provided between the upper part (11) and the lower part (10).

6. The process for preparing a cobalt-antimony alloy material according to claim 5, characterized in that: The second connecting member comprises a hydraulic cylinder (7) and a connecting rod (71); the hydraulic cylinder (7) is mounted on the side of the lower part (10); the bottom end of the connecting rod (71) is connected to the top end of the output end of the hydraulic cylinder (7); and the top end of the connecting rod (71) is connected to the side of the upper part (11).

Images