A high-density forming apparatus for low-porosity powder sintering

Abstract

This utility model relates to the field of powder sintering technology and discloses a high-density forming device for low-porosity powder sintering, including a tank body. A powder filling component is provided at the top of the tank body, and a feeding component runs through the interior of the tank body and the powder filling component. A pressing and forming mechanism is provided at the bottom of the tank body, and a conveying component is provided below the pressing and forming mechanism. A sintering component is provided at the right end of the conveying component, and a steam component is provided to the right of the sintering component. Through the coordinated operation of the powder filling component, the feeding component, and the pressing and forming mechanism, precise feeding of metal powder and high-pressure densification are achieved. The feeding funnel and the conical spiral disk work together to ensure uniform powder filling and avoid uneven density. The hydraulic cylinder drives the upper mold to apply stable high pressure and control the porosity of the green blank, solving the problems of insufficient density and high porosity in traditional forming. The components are linked by a controller to achieve automated production and shorten the cycle time of a single batch.

Description

Technical Field

[0001] This utility model relates to the field of powder sintering technology, specifically a high-density forming device for low-porosity powder sintering. Background Technology

[0002] In traditional metal powder forming processes, it is difficult to balance the density of the green blank with production efficiency, resulting in numerous technical limitations.

[0003] Traditional powder filling relies heavily on manual or simple mechanical pushing, which can easily lead to uneven distribution of powder in the mold, with excessively high density in some areas and insufficient density in the gaps, resulting in a large deviation in the overall density of the green body. Low-pressure equipment is often used in the molding stage, which prevents the powder particles from fully interlocking, and the porosity often exceeds 5%, or even reaches more than 10%, which seriously affects the mechanical properties after subsequent sintering, causing the product's flexural strength to decrease by 20%-30%.

[0004] In terms of production efficiency, each step requires manual coordination: manual powder filling is time-consuming, manual operation of the mold is prone to defects due to unstable pressure, and the production cycle of a single batch is long; labor costs account for a high proportion, and the randomness of manual operation leads to poor product consistency, making it difficult to meet the requirements of precision parts for low porosity and high stability, thus restricting the large-scale application of powder sintered parts. Utility Model Content

[0005] The purpose of this invention is to solve the problems of large deviation in green density and high porosity caused by reliance on manual or simple mechanical filling in traditional metal powder forming processes. This invention provides a high-density forming device for low-porosity powder sintering.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A high-density molding apparatus for sintering low-porosity powder includes a tank body. A powder filling assembly is disposed at the top of the tank body. A feeding assembly runs through the interior of the tank body and the powder filling assembly. A pressing and molding mechanism is disposed at the bottom of the tank body. A conveying assembly is disposed below the pressing and molding mechanism. A sintering assembly is disposed at the right end of the conveying assembly. A steam assembly is disposed to the right of the sintering assembly. A cleaning mechanism is disposed to the right of the steam assembly. A controller is disposed at the front of the cleaning mechanism. The powder filling assembly includes a feeding funnel and a feeding chamber. The feeding funnel is located above the feeding chamber. The feeding assembly includes a rotary motor, a connecting rod, and a conical spiral disk. The bottom output end of the rotary motor is rotatably connected to the top end of the connecting rod. The bottom end of the connecting rod is fixedly connected to the top end of the conical spiral disk. The pressing and molding mechanism includes a hydraulic cylinder, an upper mold, and a lower mold assembly. The bottom end of the hydraulic cylinder is fixedly connected to the top side of the upper mold. The bottom side of the upper mold is slidably connected to the top side of the lower mold assembly.

[0008] Furthermore, the feeding chamber is located inside the tank body, the feeding assembly is located at the inner axis of the feeding funnel, the pressing and forming mechanism is located at the inner axis of the feeding chamber, the bottom end of the tank body is funnel-shaped, the gap between the outer wall of the feeding chamber and the inner wall of the tank body forms a feeding channel, the outer edge of the conical spiral disk is slidably connected to the inner wall of the powder filling assembly, the rotating motor of the feeding assembly starts synchronously, and its output end drives the connecting rod and the conical spiral disk to rotate, and the outer edge of the conical spiral disk slides along the inner wall of the feeding chamber.

[0009] Furthermore, the hydraulic cylinder penetrates the interior of the powder filling assembly, and the outer side of the bottom end of the lower mold assembly is fixedly connected to the outer side of the conveying assembly. The lower mold assembly includes a lower mold body and a bottom chamber door. The top side of the bottom chamber door is slidably connected to the bottom of the lower mold body. The hydraulic cylinder drives the upper mold to slide down along the top side of the lower mold body, closing with the lower mold body to form a sealed cavity, applying high pressure to the internal powder.

[0010] Furthermore, the conveying assembly includes a second rotary motor, a rotary shaft, and a conveyor belt. The output end of the second rotary motor is movably connected to the front end of the rotary shaft. The inner side of the conveyor belt is connected to the outer side of the rotary shaft. When the second rotary motor of the conveying assembly is started, it drives the rotary shaft and the conveyor belt to rotate, and smoothly conveys the green billet to the inlet of the sintering assembly.

[0011] Furthermore, the sintering assembly includes a sintering chamber, a graphite heating element, a temperature sensor, a display, a vacuum pump, and a valve. The graphite heating element is disposed on the inner wall of the sintering chamber. The temperature sensor penetrates the interior of the sintering chamber. The display is located on the outer side of the sintering chamber and is connected to the temperature sensor. The vacuum pump penetrates the interior of the sintering chamber. The valve is slidably connected to the inlet and outlet of the sintering assembly to smoothly transport the green billet to the inlet of the sintering assembly. The valve of the sintering assembly is opened, and the valve is closed after the green billet enters the sintering chamber.

[0012] Furthermore, the steam assembly includes a steam chamber, a U-shaped frame, and an electric cylinder. The steam chamber is located at the right end of the sintering assembly. The inner side of the U-shaped frame is slidably connected to the inner bottom end of the sintering assembly. The left end of the electric cylinder is connected to the right end of the U-shaped frame to lift the sintered workpiece into the steam chamber. The surface of the workpiece in the steam chamber reacts with the steam to form a uniform black oxide film.

[0013] Furthermore, the cleaning mechanism includes a transport component, a cleaning component, a spray component, and a waste liquid basin. The transport component is located below the cleaning component, the spray component is located at the top of the cleaning component, and the waste liquid basin is located below the transport component. The rotating motor of the transport component drives the movable shaft and the conveyor belt to rotate.

[0014] Furthermore, the transport assembly includes a rotary motor three, a movable shaft, and a conveyor belt. The output end of the rotary motor three is movably connected to the front end of the rotary motor three. The inner side of the conveyor belt is connected to the outer side of the movable shaft. The rotary motor three of the transport assembly drives the movable shaft and the conveyor belt to rotate, sending the workpiece into the cleaning chamber of the cleaning assembly.

[0015] Furthermore, the cleaning assembly includes a cleaning chamber and a water curtain. The water curtain is located at the entrance and exit of the cleaning chamber. The rotating motor of the transport assembly drives the movable shaft and the conveyor belt to rotate, sending the workpiece into the cleaning chamber of the cleaning assembly.

[0016] Furthermore, the spray assembly includes a drive motor, a water pump, a water tank, a water pipe, a tank cover, and spray heads. The output end of the drive motor is connected to the water pump. The bottom end of the water pump passes through the interior of the water tank via a pipe. The top end of the water pump is connected to the interior of the tank cover via the water pipe. The spray heads are located on the bottom side of the tank cover. When the spray assembly is activated, the drive motor drives the water pump to extract cleaning media (such as hot water or fish oil) from the water tank and delivers it to the spray heads on the bottom side of the tank cover via the water pipe, spraying the workpiece surface from all directions.

[0017] Compared with the prior art, this utility model provides a high-density forming device for low-porosity powder sintering, which has the following beneficial effects:

[0018] This high-density forming device for low-porosity powder sintering achieves precise feeding and high-pressure compaction of metal powder through the coordinated operation of the powder filling component, feeding component, and pressing forming mechanism. The feeding funnel and conical spiral disk work together to ensure uniform powder filling and avoid uneven density. The hydraulic cylinder drives the upper mold to apply stable high pressure and control the porosity of the green blank, solving the problems of insufficient density and high porosity in traditional forming. At the same time, the various components are linked by the controller to achieve automated production, shorten the cycle of a single batch, reduce labor costs, and improve the overall production quality and efficiency of low-porosity powder sintered parts. Attached Figure Description

[0019] Figure 1 A three-dimensional view of the overall external structure of this utility model is provided.

[0020] Figure 2 A cross-sectional three-dimensional view showing the internal structure of the powder filling assembly, feeding assembly and compression molding mechanism of this utility model;

[0021] Figure 3 A three-dimensional sectional view showing the structure of the lower mold assembly and conveying assembly of this utility model;

[0022] Figure 4A three-dimensional diagram showing the internal structure of this practical sintered component;

[0023] Figure 5 The right side shows a three-dimensional view of the internal structure of this practical steam assembly;

[0024] Figure 6 This is a three-dimensional view showing the internal structure of this practical cleaning mechanism.

[0025] Figure 7 This is a three-dimensional structural diagram of the transportation component, cleaning component, and spraying component of this utility model.

[0026] In the diagram: 1. Tank body; 2. Powder filling assembly; 21. Feeding funnel; 22. Feeding chamber; 3. Feeding assembly; 31. Rotary motor one; 32. Connecting rod; 33. Conical spiral disk; 4. Pressing and molding mechanism; 41. Hydraulic cylinder; 42. Upper mold; 43. Lower mold assembly; 431. Lower mold body; 432. Bottom chamber door; 5. Conveying assembly; 51. Rotary motor two; 52. Rotating shaft; 53. Conveyor belt; 6. Sintering assembly; 61. Sintering chamber; 62. Graphite heating element; 63. Temperature sensor; 64. 65. Display; 66. Vacuum pump; 7. Valve; 8. Steam assembly; 71. Steam chamber; 72. U-shaped frame; 73. Electric cylinder; 8. Cleaning mechanism; 81. Transport assembly; 811. Rotary motor three; 812. Movable shaft; 813. Conveyor belt; 82. Cleaning assembly; 821. Cleaning chamber; 822. Water curtain; 83. Spray assembly; 831. Drive motor; 832. Water pump; 833. Water tank; 834. Water pipe; 835. Tank cover; 836. Spray head; 84. Waste liquid basin; 9. Controller. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1:

[0028] like Figures 1-7 As shown, a high-density molding device for low-porosity powder sintering includes a tank 1, and a powder filling assembly 2 is provided on the top of the tank 1. The powder filling assembly 2 includes a feeding funnel 21 and a feeding chamber 22. The feeding funnel 21 is located above the feeding chamber 22. The operator starts the equipment through the controller 9 and pours the metal powder into the feeding funnel 21 of the powder filling assembly 2.

[0029] A feeding assembly 3 runs through the interior of the tank body 1 and the powder filling assembly 2. The feeding assembly 3 includes a rotary motor 31, a connecting rod 32, and a conical spiral disk 33. The bottom output end of the rotary motor 31 is rotatably connected to the top end of the connecting rod 32, and the bottom end of the connecting rod 32 is fixedly connected to the top end of the conical spiral disk 33. A pressing and forming mechanism 4 is provided at the bottom of the tank body 1. The pressing and forming mechanism 4 includes a hydraulic cylinder 41, an upper mold 42, and a lower mold assembly 43. The bottom end of the hydraulic cylinder 41 is fixedly connected to the top side of the upper mold 42, and the bottom side of the upper mold 42 is slidably connected to the top side of the lower mold assembly 43. The hydraulic cylinder 41 runs through... Inside the powder filling assembly 2, the bottom outer side of the lower mold assembly 43 is fixedly connected to the outer side of the conveying assembly 5. The lower mold assembly 43 includes a lower mold body 431 and a bottom box door 432. The top side of the bottom box door 432 is slidably connected to the bottom of the lower mold body 431. The rotary motor 31 of the feeding assembly 3 starts synchronously, and its output end drives the connecting rod 32 and the conical spiral disk 33 to rotate. The outer edge of the conical spiral disk 33 slides along the inner wall of the feeding cavity 22, and pushes the powder evenly into the lower mold assembly 43 (lower mold body 431) of the pressing and forming mechanism 4 along the feeding channel between the feeding cavity 22 and the inner wall of the tank 1.

[0030] The feeding chamber 22 is located inside the tank body 1, the feeding assembly 3 is located at the inner axis of the feeding funnel 21, the pressing and forming mechanism 4 is located at the inner axis of the feeding chamber 22, the bottom of the tank body 1 is funnel-shaped, the gap between the outer wall of the feeding chamber 22 and the inner wall of the tank body 1 forms a feeding channel, and the outer edge of the conical spiral disk 33 is slidably connected to the inner wall of the powder filling assembly 2.

[0031] Below the pressing and forming mechanism 4, there is a conveying assembly 5. The conveying assembly 5 includes a second rotary motor 51, a rotary shaft 52, and a conveyor belt 53. The output end of the second rotary motor 51 is movably connected to the front end of the rotary shaft 52. The inner side of the conveyor belt 53 is connected to the outer side of the rotary shaft 52. When the second rotary motor 51 of the conveying assembly 5 is started, it drives the rotary shaft 52 and the conveyor belt 53 to rotate, and smoothly conveys the green blank to the inlet of the sintering assembly 6.

[0032] A sintering assembly 6 is provided at the right end of the conveying assembly 5. The sintering assembly 6 includes a sintering chamber 61, a graphite heating element 62, a temperature sensor 63, a display 64, a vacuum pump 65, and a valve 66. The graphite heating element 62 is located on the inner wall of the sintering chamber 61. The temperature sensor 63 penetrates the interior of the sintering chamber 61. The display 64 is located on the outside of the sintering chamber 61 and is connected to the temperature sensor 63. The vacuum pump 65 penetrates the interior of the sintering chamber 61. The valve 66 is slidably connected to the inlet and outlet of the sintering assembly 6. When the valve 66 of the sintering assembly 6 is opened, the valve closes after the green billet enters the sintering chamber 61. The vacuum pump 65 starts, and at the same time, the graphite heating element 62 starts heating. The temperature sensor 63 monitors the temperature inside the sintering chamber 61 in real time and transmits the data to the display 64, so that the green billet particles form a metallurgical bond through diffusion welding, further eliminating porosity.

[0033] A steam assembly 7 is provided on the right side of the sintering assembly 6. The steam assembly 7 includes a steam chamber 71, a U-shaped frame 72, and an electric cylinder 73. The steam chamber 71 is located at the right end of the sintering assembly 6. The inner side of the U-shaped frame 72 is slidably connected to the bottom of the sintering assembly 6. The left end of the electric cylinder 73 is connected to the right end of the U-shaped frame 72. The electric cylinder 73 of the steam assembly 7 drives the U-shaped frame 72 to extend into the sintering chamber 61 and lift the sintered workpiece into the steam chamber 71. The surface of the workpiece in the steam chamber 71 reacts with the steam to form a uniform black oxide film, which enhances the oxidation resistance and corrosion resistance. After the treatment is completed, the U-shaped frame 72 pushes the workpiece onto the transport assembly 81 of the cleaning mechanism 8. Example 2:

[0034] A cleaning mechanism 8 is located to the right of the steam assembly 7. The cleaning mechanism 8 includes a transport assembly 81, a cleaning assembly 82, a spray assembly 83, and a waste liquid basin 84. The transport assembly 81 is located below the cleaning assembly 82, the spray assembly 83 is located at the top of the cleaning assembly 82, and the waste liquid basin 84 is located below the transport assembly 81. The transport assembly 81 includes a rotary motor 811, a movable shaft 812, and a conveyor belt 813. The output end of the rotary motor 811 is movably connected to the front end of the rotary motor 811. The inner side of the conveyor belt 813 is connected to the outer side of the movable shaft 812. The cleaning assembly 82 includes a cleaning chamber 821 and a water curtain 822. The water curtain 822 is located at the entrance and exit of the cleaning chamber 821. The spray assembly 83 includes a drive motor 831, a water pump 832, a water tank 833, a water pipe 834, a tank cover 835, and a spray head 836. The output end of the drive motor 831 is connected to the water pump 832. The bottom end of the water pump 832 passes through the interior of the water tank 833 via a pipe, and the top end of the water pump 832 is connected to the interior of the tank cover 835 via a water pipe 834. The spray head 836 is located on the bottom side of the tank cover 835. The rotary motor 811 of the transport component 81 drives the movable shaft 812 and the conveyor belt 813 to rotate, sending the workpiece into the cleaning chamber 821 of the cleaning component 82. At the same time, the spray component 83 starts: the drive motor 831 drives the water pump 832 to work, drawing the cleaning medium (such as hot water or fish oil) from the water tank 833, and delivering it through the water pipe 834 to the spray head 836 on the bottom side of the tank cover 835 to spray the surface of the workpiece in all directions, dissolving residual sintering aids (such as wax) or impurities. The sweeping water curtain 822 at the entrance and exit of the cleaning chamber 821 further rinses the surface of the workpiece to ensure thorough cleaning.

[0035] A controller 9 is installed on the front side of the cleaning mechanism 8, which integrates parameter setting and linkage control functions for each component.

[0036] Working principle: such as Figures 1-7 As shown, powder filling and precise feeding: The operator starts the equipment through the controller 9 and pours the metal powder into the feed funnel 21 of the powder filling component 2; the rotary motor 31 of the feeding component 3 starts synchronously, and its output end drives the connecting rod 32 and the conical spiral disk 33 to rotate. The outer edge of the conical spiral disk 33 slides along the inner wall of the feeding cavity 22, and pushes the powder evenly along the feeding channel between the feeding cavity 22 and the inner wall of the tank 1 into the lower mold component 43 (lower mold body 431) of the pressing and forming mechanism 4; ensuring that the powder filling amount in the lower mold body 431 is accurate;

[0037] High-pressure compaction molding: When the powder is filled to the preset amount in the lower mold body 431, the controller 9 triggers the pressing and molding mechanism 4 to work: the hydraulic cylinder 41 drives the upper mold 42 to slide down along the top side of the lower mold body 431 and close with the lower mold body 431 to form a closed cavity, applying high pressure to the powder inside. Under the pressure, the powder particles tightly interlock to form a green blank with low porosity. After pressing is completed, the hydraulic cylinder 41 drives the upper mold 42 to reset, and the bottom box door 432 of the lower mold assembly 43 slides open along the bottom of the lower mold body 431, and the green blank is placed on the conveyor belt 53 of the conveying assembly 5.

[0038] Green billet conveying and vacuum sintering: The rotary motor 51 of the conveying assembly 5 starts, driving the rotary shaft 52 and the conveyor belt 53 to rotate, smoothly conveying the green billet to the inlet of the sintering assembly 6; at this time, the valve 66 of the sintering assembly 6 opens, and the valve closes after the green billet enters the sintering chamber 61; the vacuum pump 65 starts, and the graphite heating element 62 starts heating at the same time; the temperature sensor 63 monitors the temperature in the sintering chamber 61 in real time and transmits the data to the display 64, so that the green billet particles form a metallurgical bond through diffusion welding, further eliminating porosity and improving mechanical properties;

[0039] Steam treatment and surface strengthening: After sintering, valve 66 is opened again, and the electric cylinder 73 of steam assembly 7 drives U-shaped frame 72 to extend into sintering chamber 61, lifting the sintered workpiece into steam chamber 71; the surface of the workpiece in steam chamber 71 reacts with steam to form a uniform black oxide film, which enhances oxidation resistance and corrosion resistance; after treatment, U-shaped frame 72 pushes the workpiece onto transport assembly 81 of cleaning mechanism 8;

[0040] Precision cleaning and impurity removal: The rotary motor 811 of the transport component 81 drives the movable shaft 812 and the conveyor belt 813 to rotate, sending the workpiece into the cleaning chamber 821 of the cleaning component 82; at the same time, the spray component 83 starts: the drive motor 831 drives the water pump 832 to work, drawing cleaning medium (such as hot water or fish oil) from the water tank 833, and transporting it through the water pipe 834 to the spray head 836 on the bottom side of the box cover 835, spraying the workpiece surface in all directions to dissolve residual sintering aids (such as wax) or impurities; the sweeping water curtain 822 at the entrance and exit of the cleaning chamber 821 further rinses the workpiece surface to ensure thorough cleaning, and the waste liquid falls into the waste liquid basin 84 below through the mesh of the conveyor belt 813 for collection, and the cleaned workpiece can be transported to the next process through the transport component 81.

Claims

1. A high-density molding apparatus for sintering low-porosity powder, comprising a tank (1), characterized in that: A powder filling assembly (2) is provided at the top of the tank (1), and a feeding assembly (3) runs through the inside of the tank (1) and the powder filling assembly (2). A pressing and molding mechanism (4) is provided at the bottom of the tank (1), and a conveying assembly (5) is provided below the pressing and molding mechanism (4). A sintering assembly (6) is provided at the right end of the conveying assembly (5), and a steam assembly (7) is provided on the right side of the sintering assembly (6). A cleaning mechanism (8) is provided on the right side of the steam assembly (7), and a controller (9) is provided on the front side of the cleaning mechanism (8). The powder filling assembly (2) includes a feed funnel (21) and a feeding chamber (22), with the feed funnel (21) located above the feeding chamber (22); The feeding assembly (3) includes a rotary motor (31), a connecting rod (32) and a conical spiral disk (33). The bottom output end of the rotary motor (31) is rotatably connected to the top end of the connecting rod (32), and the bottom end of the connecting rod (32) is fixedly connected to the top end of the conical spiral disk (33). The pressing and forming mechanism (4) includes a hydraulic cylinder (41), an upper mold (42) and a lower mold assembly (43). The bottom end of the hydraulic cylinder (41) is fixedly connected to the top side of the upper mold (42), and the bottom side of the upper mold (42) is slidably connected to the top side of the lower mold assembly (43).

2. The high-density forming apparatus for low-porosity powder sintering according to claim 1, characterized in that: The feeding chamber (22) is located inside the tank (1), the feeding assembly (3) is located at the inner axis of the feeding funnel (21), the pressing and forming mechanism (4) is located at the inner axis of the feeding chamber (22), the bottom of the tank (1) is funnel-shaped, the gap between the outer wall of the feeding chamber (22) and the inner wall of the tank (1) forms a feeding channel, and the outer edge of the conical spiral disk (33) is slidably connected to the inner wall of the powder filling assembly (2).

3. The high-density forming apparatus for low-porosity powder sintering according to claim 1, characterized in that: The hydraulic cylinder (41) penetrates the interior of the powder filling assembly (2), and the bottom outer side of the lower mold assembly (43) is fixedly connected to the outer side of the conveying assembly (5). The lower mold assembly (43) includes a lower mold body (431) and a bottom box door (432), and the top side of the bottom box door (432) is slidably connected to the bottom of the lower mold body (431).

4. The high-density forming apparatus for low-porosity powder sintering according to claim 1, characterized in that: The conveying assembly (5) includes a second rotary motor (51), a rotary shaft (52) and a conveyor belt (53). The output end of the second rotary motor (51) is movably connected to the front end of the rotary shaft (52), and the inner side of the conveyor belt (53) is connected to the outer side of the rotary shaft (52).

5. The high-density forming apparatus for low-porosity powder sintering according to claim 1, characterized in that: The sintering assembly (6) includes a sintering chamber (61), a graphite heating element (62), a temperature sensor (63), a display (64), a vacuum pump (65), and a valve (66). The graphite heating element (62) is disposed on the inner wall of the sintering chamber (61). The temperature sensor (63) penetrates the interior of the sintering chamber (61). The display (64) is located on the outside of the sintering chamber (61) and is connected to the temperature sensor (63). The vacuum pump (65) penetrates the interior of the sintering chamber (61). The valve (66) is slidably connected to the inlet and outlet of the sintering assembly (6).

6. The high-density forming apparatus for low-porosity powder sintering according to claim 1, characterized in that: The steam assembly (7) includes a steam chamber (71), a U-shaped frame (72), and an electric cylinder (73). The steam chamber (71) is located at the right end of the sintering assembly (6). The inner side of the U-shaped frame (72) is slidably connected to the inner bottom end of the sintering assembly (6). The left end of the electric cylinder (73) is connected to the right end of the U-shaped frame (72).

7. The high-density forming apparatus for low-porosity powder sintering according to claim 1, characterized in that: The cleaning mechanism (8) includes a transport component (81), a cleaning component (82), a spray component (83), and a waste liquid basin (84). The transport component (81) is located below the cleaning component (82), the spray component (83) is located at the top of the cleaning component (82), and the waste liquid basin (84) is located below the transport component (81).

8. A high-density forming apparatus for low-porosity powder sintering according to claim 7, characterized in that: The transport assembly (81) includes a rotary motor (811), a movable shaft (812), and a conveyor belt (813). The output end of the rotary motor (811) is movably connected to the front end of the rotary motor (811), and the inner side of the conveyor belt (813) is connected to the outer side of the movable shaft (812).

9. A high-density forming apparatus for low-porosity powder sintering according to claim 7, characterized in that: The cleaning assembly (82) includes a cleaning chamber (821) and a water curtain (822), the water curtain (822) being located at the entrance and exit of the cleaning chamber (821).

10. A high-density forming apparatus for low-porosity powder sintering according to claim 7, characterized in that: The spray assembly (83) includes a drive motor (831), a water pump (832), a water tank (833), a water pipe (834), a tank cover (835), and a spray head (836). The output end of the drive motor (831) is connected to the water pump (832). The bottom end of the water pump (832) passes through the interior of the water tank (833) through a pipe. The top end of the water pump (832) is connected to the interior of the tank cover (835) through the water pipe (834). The spray head (836) is located on the bottom side of the tank cover (835).

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