Production system

Abstract

The invention provides a production system. The production system is used for producing the porous metal material. The production system comprises: a container for accommodating a molten metal liquid; the ventilation device comprises a guide part and a bubbling part, the guide part comprises a first cavity, the first cavity comprises at least one air inlet, the bubbling part is in a plate shape and comprises a second cavity, the second cavity is communicated with the first cavity, and the second cavity comprises a plurality of air outlet holes penetrating through the upper wall of the second cavity; and the discharging device is used for guiding the foam discharged from the container to move along a target direction.

Description

Technical Field

[0001] The present application relates to the field of porous metal material processing, and in particular to a production system. Background Art

[0002] Porous metal materials have the advantages of low density, high porosity, high strength and toughness, good electrical and thermal conductivity, strong impact resistance, special heat transfer and acoustics, and are widely used in various fields.

[0003] The melt-gas foaming method is a commonly used method for producing porous metal materials. The density and uniformity of the finished porous metal material greatly affect its performance. When the existing equipment uses the melt-gas foaming method to produce porous metal, it is difficult to control the density and uniformity. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the present application discloses a production system for producing porous metal materials, comprising: a container for accommodating molten metal; a ventilation device, comprising a guide part and a bubbling part, the guide part comprising a first cavity, the first cavity comprising at least one air inlet, the bubbling part is plate-shaped and comprises a second cavity, the second cavity is connected to the first cavity, the second cavity comprises a plurality of air outlet holes penetrating the upper wall of the second cavity; and a discharging device, guiding the foam coming out of the container to move in a target direction.

[0005] In some embodiments, the bubbling portion includes an upper wall plate, a lower wall plate, and a side wall plate, and the upper wall plate, the lower wall plate, and the side wall plate enclose the second cavity.

[0006] In some embodiments, the bubbling portion further includes: a supporting structure, in the second cavity, with an upper end connected to the upper wall plate and a lower end connected to the lower wall plate.

[0007] In some embodiments, the support structure includes: a support rod; or a support plate including a plurality of through holes.

[0008] In some embodiments, the upper surface of the upper wall plate includes a plurality of protrusions, and the air outlet holes are arranged at the protrusions.

[0009] In some embodiments, the second cavity is plate-shaped.

[0010] In some embodiments, the target direction includes a vertical direction, the discharging device includes a discharging channel extending along the vertical direction, the discharging device includes a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are parallel and extend along the vertical direction, and the first limiting portion and the second limiting portion are separated by a preset distance.

[0011] In some embodiments, the first limiting portion includes at least one first roller, which is arranged in the vertical direction, and the second limiting portion includes at least one second roller, which is arranged in the vertical direction; or the first limiting portion includes at least one first roller belt, which extends in the vertical direction, and the second limiting portion includes at least one second roller belt, which extends in the vertical direction.

[0012] In some embodiments, the preset spacing is adjustable.

[0013] In some embodiments, the production system also includes a cutting device, which is located above the discharge device in a vertical direction. The cutting device includes: a base; and a cutting head installed on the base. When the cutting head is working, it moves horizontally relative to the base to cut off the solidified foam. When the cutting head is working, the base moves upward in a vertical direction, wherein the upward movement speed of the base is the same as the upward movement speed of the solidified foam.

[0014] In some embodiments, the production system further includes: a driving device, which drives one end of the bubbling part to move horizontally back and forth, thereby driving the entire bubbling part to move horizontally back and forth; and a limiting device, which limits the displacement of the other end of the bubbling part in the vertical direction.

[0015] The production system provided by the present application has a simple gas flow path, and the gas is spread out in the plate-shaped bubbling part. The gas pressure and gas flow rate at each outlet are highly consistent, which improves the consistency of the gas state at each location in the bubbling part, thereby improving the consistency of the size and density of the bubbles coming out of all the outlets, and improving the uniformity of the foam. The bubbling part in the ventilation device is designed as a thin-walled cavity structure, which is simple in structure and reduces the production cost. A support structure is arranged in the second cavity, which can improve the strength of the bubbling part and avoid the deformation of the bubbling part in high-temperature metal. The support rod is used as the support structure, and the influence of the support structure on the airflow in the second cavity can be minimized while achieving the supporting effect. When a support plate is used as the support structure, a through hole is arranged on the support plate, which can avoid the influence of the support plate on the airflow in the second cavity, so that the airflow in the second cavity is connected, and the airflow consistency at each location is better. A plurality of protrusions are arranged on the upper wall plate of the bubbling part, and the outlet holes are arranged at the protrusions, so that the detachment of the bubbles is easier, the detachment of the bubbles is accelerated, and the volume of the bubbles is reduced.

[0016] Furthermore, a discharge channel arranged above the container outlet and extending in the vertical direction guides the foam to move upward in the vertical direction, and the foam cools and solidifies into a porous metal material during the upward movement. The porous metal material produced by this system has a more uniform distribution of bubbles in width, thickness and length, and the performance of the formed porous metal is better.

[0017] Furthermore, the cooling device accelerates the cooling and solidification of the liquid foam metal, thereby improving the production efficiency. The thickness of the formed porous metal is adjusted by adjusting the width of the discharge channel, which is simple to operate and low in cost. The solid porous material coming out of the discharge channel outlet is cut off by the cutting device, and the cutting head of the cutting device moves upward together with the metal foam, thereby improving the flatness of the cut.

[0018] Furthermore, the longitudinal displacement of the second end of the bubbling portion is constrained by a limiting device, thereby enhancing the stability of the bubbling portion in the vertical direction during the operation of the production system, reducing the shaking of the bubbling portion in the vertical direction, avoiding the shaking bubbling portion beating the bubbles and causing the bubbles to burst, increasing the density of the bubbles in the finished porous metal material, and improving the performance of the finished porous metal material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of this specification, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of a production system provided according to an embodiment of the present application is shown;

[0021] Figure 2 A schematic structural diagram of a ventilation device provided according to an embodiment of the present application is shown;

[0022] Figure 3 A cross-sectional view of a ventilation device provided according to an embodiment of the present application is shown;

[0023] Figure 4 A schematic structural diagram of a bubbling portion provided according to an embodiment of the present application is shown;

[0024] Figure 5 A schematic diagram showing the structure of a production system in which a discharging device is extended in a horizontal direction according to an embodiment of the present application; and

[0025] Figure 6 A cross-sectional view of a foamed aluminum plate is shown. DETAILED DESCRIPTION

[0026] The following description provides specific application scenarios and requirements of the present application, with the purpose of enabling those skilled in the art to make and use the content in the present application. It will be apparent to those skilled in the art that various local modifications to the disclosed embodiments are apparent, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present application. Therefore, the present application is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0027] The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting.

[0028] In view of the following description, these and other features of the present application, as well as the operation and function of the related elements of the structure, and the economy of the combination and manufacture of the parts can be significantly improved. With reference to the accompanying drawings, all of which form a part of this application. However, it should be clearly understood that the drawings are only for the purpose of illustration and description and are not intended to limit the scope of this application.

[0029] The following description may significantly improve these and other features of the present application, as well as the operation and function of the relevant elements of the structure, and the combination of components and the economic efficiency of manufacturing. All of these refer to the accompanying drawings to form a part of this application. However, it should be clearly understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of the present application. It should also be understood that the drawings are not drawn to scale.

[0030] Figure 1 A schematic diagram of a production system 01 provided according to an embodiment of the present application is shown. The production system 01 can produce porous metal materials. The metal material refers to a material containing a metal. The metal material may include a pure metal, a metal alloy, or a metal-based composite material. As an example, the metal may include, but is not limited to, aluminum, steel, copper, and the like. As an example, the metal material may be aluminum, an aluminum alloy, or an aluminum-based composite material. For example, the production system 01 can produce foamed aluminum. As an example, the foamed aluminum is a closed-cell foamed aluminum. As an example, in the following description of this article, the production system 01 is introduced as if the metal is aluminum. Reference Figure 1 The production system 01 may include a container 100, a ventilation device 200 and a discharging device 300. In some embodiments, the production system 01 may also include a driving device 400, a limiting device (not shown in the figure), a cutting device 500, a cooling device (not shown in the figure), a supporting device 700 and / or a guiding device 800.

[0031] The container 100 includes a containing cavity 110. The container 110 can contain molten metal liquid. As an example, the molten metal liquid may include aluminum liquid, aluminum alloy liquid, or aluminum-based composite material melt. The molten metal liquid forms metal foam after ventilation. As an example, when the molten metal liquid is aluminum liquid, aluminum alloy liquid, or aluminum-based composite material melt, the metal foam includes foamed aluminum. In some embodiments, the container 100 may be made of a high-temperature resistant heat-insulating material to prevent the molten metal liquid from solidifying after the temperature drops. In some embodiments, a heat-insulating structure may also be provided outside the container 100 to insulate the molten metal liquid in the container. The container 100 includes an opening 101. Under the action of gas pressure, the molten metal foam may move upward and flow out of the opening 101. The discharge device 300 provided near the opening 101 guides the foam coming out of the container 100 to move in a target direction. For example, the target direction may include a vertical direction, and the discharge device 300 may guide the metal foam flowing out of the opening 101 into the discharge channel 301 and move in a vertical direction. As an example, a guide device 901 may be provided in the container 100. The guide device 901 may guide the bubbles to the inlet of the discharge channel 301.

[0032] The ventilation device 200 can guide the target gas provided by the gas source into the container 100. In some embodiments, the target gas can be air. As an example, the air can be compressed air. In some embodiments, the target gas can be carbon dioxide gas. In some embodiments, the target gas can be an inert gas. As an example, the inert gas can include but is not limited to helium (He), neon (Ne), argon (Ar), etc. The target gas is provided by a gas source. In some embodiments, the pressure of the target gas is not less than 0.1Mpa, so that the metal foam in the container is easier to move upward. Specifically, the ventilation device 200 may include a guide portion 210 and a bubbling portion 220.

[0033] As an example, Figure 2 A schematic structural diagram of a ventilation device 200 provided according to an embodiment of the present application is shown. Figure 3 A cross-sectional view of a ventilation device 200 provided according to an embodiment of the present application is shown.

[0034] One end of the guide part 210 is connected to the gas source, and the other end is connected to the bubbling part 220. The guide part 210 can guide the target gas of the gas source to the bubbling part 220. Figure 2 and Figure 3The guide portion 210 may include a first cavity 201, and the first cavity 201 may include at least one gas inlet 21. The gas inlet 21 may be an opening of the first cavity 201. The gas inlet 21 may be connected to a gas source. The gas inlet 21 may introduce a target gas provided by the gas source into the first cavity 201. The gas inlet 21 may be outside the container.

[0035] The foaming part 220 is in the container 100. The foaming part 220 is used to generate foam, that is, foam or foam. As an example, the foaming part 220 is close to the bottom of the container 100. Figures 2 to 3 , the bubbling portion 220 may include a second cavity 202. The second cavity 202 and the first cavity 201 may be connected. The second cavity 202 and the first cavity 201 may be connected to form an air passage. The entrance of the air passage is an air inlet 21. The target gas may enter the second cavity 202 from the first cavity 201 and fill the second cavity 202. The second cavity 202 may include a plurality of air outlet holes 22 that penetrate the upper wall of the second cavity 202. The outlet of the air passage may be the plurality of air outlet holes 22. The plurality of air outlet holes 22 allow the target gas that enters the first cavity 201 and the second cavity 202 via the air inlet 21 to flow out into the molten metal liquid to form foam. As an example, the air outlet holes 22 are close to the bottom 102 of the container 100. The second cavity 202 is plate-shaped. As an example, the second cavity 202 is flat. As an example, the second cavity 202 is in the shape of a curved plate, for example, the second cavity 202 may be in the shape of a wavy plate.

[0036] Continue to refer Figures 2 to 3 , the bubble portion 220 may be in a plate shape. As an example, the shape of the bubble portion 220 may be consistent with the shape of the second cavity 202. For example, the bubble portion 220 and the second cavity 202 may both be in a plate shape. For another example, the bubble portion 220 and the second cavity 202 may both be in a wavy plate shape. The width of the bubble portion 220 may be slightly smaller than the width of the bottom of the container. The length of the bubble portion 220 may be smaller than the width of the bottom of the container to facilitate the horizontal reciprocating movement of the bubble portion in the container 100. As an example, the length of the bubble portion 220 is 1 / 3-1 / 2 of the length of the bottom of the container.

[0037] Combined with the description above, the target gas enters the first cavity 201 from the gas inlet 21, enters the second cavity 202 located at the bottom of the container and connected to the first cavity 201 from the first cavity 201, and then comes out from the plurality of gas outlets 22 on the upper wall of the second cavity 202. The target gas coming out of the gas outlet 22 moves upward in the solution to form foam. For a single gas outlet 22, the size, density and uniformity of the bubbles coming out of the gas outlet 22 are affected by the gas pressure and gas flow rate at the gas outlet 22. Generally speaking: the faster the gas flow rate, the denser the density of the bubbles coming out of the gas outlet; the greater the gas pressure, the larger the bubbles coming out of the gas outlet; the more stable the gas pressure and flow rate at the gas outlet, the better the uniformity of the bubbles coming out of the gas outlet. Combined with the description above, the bubbling portion 220 includes a plurality of gas outlets 22. If the gas state at all gas outlets 22 can be controlled to be consistent, the uniformity of the foam coming out of the bubbling portion can be greatly improved. The production system provided by the present application has a simple gas flow path, the gas is spread out flatly in the plate-shaped bubbling portion, the gas pressure and gas flow rate at each outlet are highly consistent, the consistency of the gas state at each location in the bubbling portion is improved, and the consistency of the size and density of the bubbles coming out of all the outlets is further improved, thereby improving the uniformity of the foam.

[0038] Specifically, the bubbling portion 220 may include an upper wall plate 221, a lower wall plate 222, and a side wall plate 223. As an example, the shape of the upper wall plate 221 may be consistent with the shape of the second cavity 202. For example, the shape of the upper wall plate 221 may be consistent with the shape of the second cavity 202 and both are in the shape of a flat plate. For another example, the shape of the upper wall plate 221 may be consistent with the shape of the second cavity 202 and both are in the shape of a wavy plate. As an example, the shape of the lower wall plate 222 may be consistent with the shape of the second cavity 202. For example, the shape of the lower wall plate 222 may be consistent with the shape of the second cavity 202 and both are in the shape of a flat plate. For another example, the shape of the lower wall plate 222 may be consistent with the shape of the second cavity 202 and both are in the shape of a wavy plate. In some embodiments, the lower wall plate 222 is parallel to the upper wall plate 221. The upper wall plate 221 and the lower wall plate 222 are spaced apart to form the first cavity 201. The upper end of the side wall plate 223 is connected to the upper wall plate 221, and the lower end is connected to the lower wall plate 222. The upper wall plate 221, the lower wall plate 222 and the side wall plate 223 enclose the second cavity 202. The bubbling portion in the ventilation device is designed as a thin-walled cavity structure, which has a simple structure and reduces the production cost. In some embodiments, the upper surface of the upper wall plate 221 may include a plurality of protrusions, and the air outlet 22 may be arranged at the protrusions. A plurality of protrusions are arranged on the upper wall plate of the bubbling portion, and the air outlet is arranged at the protrusions, so that the detachment of the bubbles is easier, the detachment of the bubbles is accelerated, and the volume of the bubbles is reduced.

[0039] As an example, Figure 4FIG. 2 shows a schematic structural diagram of a foaming portion 220 provided according to an embodiment of the present application. Figure 4 In some embodiments, the bubbling portion 220 may include a support structure 225. The support structure 225 may be disposed in the second cavity 202, the upper end of the support structure 225 being connected to the upper wall plate 221, and the lower end of the support structure 225 being connected to the lower wall plate 222. The support structure 225 is disposed in the second cavity 202 to improve the strength of the bubbling portion 220 and prevent the bubbling portion 220 from deforming in high-temperature metal. As an example, the support structure 225 may include a support rod. By using a support rod as a support structure, the influence of the support structure on the airflow in the second cavity can be minimized while achieving the supporting effect. As an example, the support structure 225 may include a support plate, and the support plate may include a plurality of through holes. When a support plate is used as a support structure, through holes are disposed on the support plate, so that the influence of the support plate on the airflow in the second cavity can be avoided, so that the airflow in the second cavity 202 is connected, and the airflow consistency at each location is better.

[0040] refer to Figure 1 In some embodiments, the production system 01 may further include a driving device 400. The driving device 400 may drive the bubbling portion 220 to reciprocate horizontally. When the driving device 400 is working, it drives one end 220-1 of the bubbling portion to reciprocate horizontally, thereby driving the entire bubbling portion 220 to reciprocate horizontally. The driving device 400 drives the bubbling portion 220 to reciprocate horizontally, which can accelerate the detachment of bubbles from the bubbling portion 220, thereby improving efficiency and preventing the bubble volume from being too large.

[0041] refer to Figure 1 and Figure 2 In some embodiments, the driving device 400 can be connected to one end 220-1 of the bubbling portion through the guide portion 210, and drives the guide portion 210 to move horizontally back and forth, thereby driving the bubbling portion 220 to move horizontally back and forth. In some embodiments, the driving device 400 can also be connected to one end 220-1 of the bubbling portion through other supporting structures, and drives the other supporting structures to move horizontally back and forth, thereby driving the bubbling portion 220 to move horizontally back and forth.

[0042] The driving device 400 may include a crank-connecting rod mechanism, one end of which is connected to the motor, and the other end of which may be connected to the guide part 210, and the crank-connecting rod mechanism converts the continuous rotation output by the motor into the reciprocating movement of the guide part 210 in the horizontal direction. The driving device 400 may include a motor 410, a rotating disk 420, a first connecting rod 430, a second connecting rod 440, and a slide rail 450. The motor 410 is a rotary motor. The rotating disk 420 is fixedly connected to the output shaft of the motor 410, and the rotating disk 420 rotates around the axis of the output shaft of the motor 410 under the drive of the motor 410. One end of the first connecting rod 430 is connected to the rotating disk 420, and the other end is connected to the second connecting rod 440. The connection portion between the first connecting rod 430 and the rotating disk 420 deviates from the output axis of the motor 410. The slide rail 450 limits the longitudinal displacement of the second connecting rod 440 and guides the second connecting rod 440 to move in the horizontal direction. One end of the second connecting rod 440 is connected to the first connecting rod 430, and the other end is rigidly connected to the guide portion 210 of the ventilation device 200. The rotating disk 420, the first connecting rod 430, the second connecting rod 440, and the slide rail 450 constitute an eccentric crank connecting rod mechanism, which converts the continuous rotation of the output shaft of the motor 410 into the reciprocating movement of the second connecting rod 440, and then drives the ventilation device 200 rigidly connected to the second connecting rod 440 to reciprocate.

[0043] In combination with the foregoing description, one end 220-1 of the bubbling portion can be connected to the driving device 400 through the guide portion 210 or other supporting structures. In some embodiments, the production system 01 may further include a limiting device (not shown in the figure). The other end 220-2 of the bubbling portion can be connected to the limiting device, for example, the other end 220-2 of the bubbling portion is connected to the limiting device through a supporting structure. The limiting device can limit the displacement of the other end 220-2 of the bubbling portion in the vertical direction, enhance the stability of the bubbling portion 220 in the vertical direction during the operation of the production system, reduce the shaking of the bubbling portion 220 in the vertical direction, avoid the shaking bubbling portion 220 beating the bubbles to cause the bubbles to burst, increase the density of the bubbles in the finished porous metal material, and improve the performance of the finished porous metal material.

[0044] Continue to refer Figure 1 , the discharge device 300 is above the container 100. The discharge device 300 may include a discharge channel 301. The discharge channel 301 allows the metal foam to pass through. The metal foam moves upward and flows out of the opening 101, then enters the discharge channel 301 and moves along the direction in which the discharge channel 301 extends and is formed into solid foam, i.e., a finished porous metal material.

[0045] In some embodiments, the discharge channel 301 extends in the horizontal direction. As an example, Figure 5The schematic diagram of the structure of a production system 02 with a discharge device extending horizontally according to an embodiment of the present application is shown. After the metal foam moves upward and flows out of the opening 101, it turns into a discharge channel 301 extending horizontally under the guidance of the guide part, and moves horizontally along the discharge channel 301 and is formed into solid foam. Figure 5 In the embodiment shown, during the horizontal movement of the metal foam along the discharge channel 301, the bubbles will move upward due to the influence of density, gravity, gas pressure, etc., and the bubbles in the solid metal foam finally formed are uneven: the higher the foam density is, the lower the foam density is. This unevenness greatly affects the performance of the finished foam metal. As an example, Figure 6 A cross-sectional view of a foam aluminum plate is shown. Figure 6 In the thickness direction, the number of bubbles in the aluminum foam plate decreases from top to bottom, and the uniformity of the bubbles in the thickness direction is very poor. In addition, when the bubbles come out of the container 100, they need to turn to enter the discharge channel 301. At the turning point, the number and distribution of bubbles will also change, affecting the bubble density and uniformity of the formed metal foam.

[0046] In some embodiments, the discharge channel 301 extends in the vertical direction. Figure 1 The discharge device 300 includes a discharge channel 301 extending in the vertical direction. After the metal foam moves upward and flows out from the opening 101, it enters the discharge channel 301 extending in the vertical direction and moves vertically upward to be formed into a solid foam. In the process of the movement of the metal foam, the movement direction of the metal foam is consistent with the gravity and the rising direction of the gas, so that the bubbles in the solid metal foam finally formed are more uniform in thickness and length. As an example, the discharge channel 301 can be directly above the opening 110. The entrance of the discharge channel 301 is directly opposite to the bubbling part 220 provided with an air outlet. After the metal foam flows out from the opening 101, it does not need to turn and directly moves vertically upward to enter the discharge channel 301, thereby avoiding the influence of the bend on the bubbles and improving the bubble density and uniformity of the formed metal foam.

[0047] The discharge channel 301 can constrain the shape of the metal foam. The discharge channel 301 serves as a mold to shape the molten metal into a desired shape. The cross-sectional shape of the formed solid metal foam is consistent with the cross-sectional shape of the discharge channel 301. As an example, the cross-sectional shape of the discharge channel 301 may include, but is not limited to, a rectangle, a circle, a triangle, and the like. Correspondingly, the formed solid metal foam may be plate-shaped, cylindrical, triangular prism-shaped, and the like.

[0048] Continue to refer Figure 1In some embodiments, the discharge device 300 may include a first limiter 310 and a second limiter 320. The first limiter 310 and the second limiter 320 are parallel and extend in the vertical direction. The first limiter 310 limits the molten metal foam entering the discharge channel 301 to move horizontally to the left, and the second limiter 320 limits the molten metal foam to move horizontally to the right. The first limiter 310 and the second limiter 320 are spaced by a preset spacing H to form the discharge channel 301. As an example, the formed metal foam is in the shape of a plate, and the thickness of the metal foam plate is H. In some embodiments, the preset spacing L is adjustable. The production personnel can adjust the spacing H between the first limiter 310 and the second limiter 320 according to the required thickness of the metal foam, so as to obtain the metal foam of the required thickness. In this way, there is no need to change the mold, and only the spacing H needs to be simply adjusted to produce metal foam plates of various thicknesses, which is simple to operate, efficient, and reduces costs.

[0049] refer to Figure 1 In some embodiments, the first limiting portion 310 includes at least one first roller 311, the axis of the first roller 311 is horizontally arranged, and the at least one first roller 311 is arranged in the vertical direction, and the second limiting portion 320 includes at least one second roller 321, the axis of the second roller 321 is horizontally arranged, and the at least one second roller 321 is arranged in the vertical direction. Figure 1 The axes of the first roller 311 and the second roller 321 are both arranged horizontally (perpendicular to the drawing). The axes of the first roller 311 and the second roller 321 are parallel to each other. One first roller 311 and one second roller 321 constitute a group of rollers. Multiple groups of rollers arranged vertically together form the discharge channel 301.

[0050] The use of a vertically arranged roller group can, on the one hand, form a vertically extending discharge channel to guide the metal foam to move in the vertical direction; on the other hand, the friction between the rollers and the foam metal during rolling can drive the foam metal to move upward.

[0051] Compared with the metal foam at the bottom, the metal foam at the top has been out of the container 100 for a longer time, so it has a higher degree of solidification and is less likely to spread. The metal foam at the bottom has a lower degree of solidification. In some embodiments, along the vertical direction, the roller arrangement density at the bottom is greater than the roller arrangement density at the top. Figure 1 In the vertical direction, the lower it is, the denser the arrangement density of the roller group is, so as to prevent the liquid molten metal foam from diffusing at the interface between the opening 101 and the discharge channel 301. The higher it is, the sparser the arrangement density of the stick group is, so as to reduce the resistance to the upward movement of the metal foam.

[0052] In some embodiments, the roller can be replaced by a roller belt. For example, the first limiting portion 310 may include at least one first roller belt, the first roller belt extends in the vertical direction, and the second limiting portion 320 may include at least one second roller belt, the second roller belt extends in the vertical direction. The first roller belt and the second roller belt arranged opposite to each other may also form a discharge channel, and the rolling of the roller belt may also provide a driving force for the metal foam to move upward.

[0053] The cooling device can accelerate the solidification of the metal foam. The cooling device can be arranged outside the discharge channel 301. The cooling device can cool the foam coming out of the container 100, and the foam is in a solid state after cooling. In some embodiments, the cooling device blows cold air to the discharge channel 301 to cool the foam. In some embodiments, the cooling device cools the foam by cooling water. In some embodiments, the cooling device cools the foam by cold mist.

[0054] The cutting device 500 is vertically disposed above the discharging device 300. The cutting device 500 can be disposed at the outlet of the discharging channel. After the foam metal comes out of the outlet of the discharging device 500, the cutting device 500 can cut the foam metal. The width of the cut foam metal is then cut to form a finished foam metal.

[0055] In some embodiments, the cutting device 500 includes a base 510 and a cutting head 520. Figure 1 The cutting head 520 is mounted on the base 510. The cutting head 510 moves horizontally relative to the base 520 during operation to cut off the solidified foam.

[0056] In some embodiments, the base 510 is fixedly connected to the supporting device 700. During the horizontal movement of the cutting head 520, the base 510 is stationary relative to the ground.

[0057] In some embodiments, when the cutting head 520 is working, the base 510 moves upward in the vertical direction. For example, one of the base 510 and the support device 700 is provided with a slide rail extending in the vertical direction, and the other is provided with a slider matched with the slide rail, so that the base 510 can move vertically up and down relative to the support device 700. In some embodiments, the speed v2 of the base 510 moving upward is the same as the speed v1 of the solid foam moving upward, so that the fracture of the solid foam after being cut is horizontal.

[0058] The guide device 800 is used to guide the container 100 to move in a vertical direction or in a horizontal direction. Figure 1In the embodiment shown, a slider can be provided at the bottom of the container 100, and a guide rail can be provided on the guide device 800, and the slider can move horizontally along the guide rail. When the metal solution in the container 100 is about to run out, the container 100 can be moved horizontally to move the container out from under the discharge device 300 to add the metal solution into the container 100. In some embodiments, the guide device 800 can be provided on the left and / or right side of the container 100, and the container 100 moves vertically up and down under the guidance of the guide device 800. When the metal solution in the container 100 is about to run out, the container 100 can be moved downward in the vertical direction, and then the metal solution can be added into the container 100. In production practice, the weight of the container containing molten metal liquid is very heavy, and the ventilation device that reciprocates in the metal liquid will cause the metal liquid to shake, which will cause the entire container to vibrate left and right during operation. The vertical guide device can not only guide the container to move to add solution, but also limit the shaking of the container in the horizontal direction.

[0059] The support device 700 can provide support for part or all of the discharging device 300, the cooling device, and the cutting device 500. The discharging device 300, the cooling device, and / or the cutting device 500 can be installed on the support device 700. Of course, in some embodiments, the discharging device 300, the cooling device, and / or the cutting device 500 can also be directly installed on the ground or the wall.

[0060] In summary, the present application provides a production system. In the production system, the gas flow path is simple, the gas is spread out in the plate-shaped bubbling part, the gas pressure and gas flow rate at each outlet are highly consistent, the consistency of the gas state at each location in the bubbling part is improved, and then the consistency of the size and density of the bubbles coming out of all the outlets is improved, and the uniformity of the foam is improved. The bubbling part in the ventilation device is designed as a thin-walled cavity structure, which is simple in structure and reduces the production cost. The support structure is arranged in the second cavity, which can improve the strength of the bubbling part and avoid the deformation of the bubbling part in high-temperature metal. The support rod is used as the support structure, and the influence of the support structure on the airflow in the second cavity can be minimized while achieving the supporting effect. When the support plate is used as the support structure, a through hole is arranged on the support plate, which can avoid the influence of the support plate on the airflow in the second cavity, so that the airflow in the second cavity is connected, and the airflow consistency at each location is better. A plurality of protrusions are arranged on the upper wall plate of the bubbling part, and the outlet holes are arranged at the protrusions, so that the detachment of the bubbles is easier, the detachment of the bubbles is accelerated, and the volume of the bubbles is reduced.

[0061] Furthermore, a discharge channel arranged above the container outlet and extending in the vertical direction guides the foam to move upward in the vertical direction, and the foam cools and solidifies into a porous metal material during the upward movement. The porous metal material produced by this system has a more uniform distribution of bubbles in width, thickness and length, and the performance of the formed porous metal is better.

[0062] Furthermore, the cooling device accelerates the cooling and solidification of the liquid foam metal, thereby improving the production efficiency. The thickness of the formed porous metal is adjusted by adjusting the width of the discharge channel, which is simple to operate and low in cost. The solid porous material coming out of the discharge channel outlet is cut off by the cutting device, and the cutting head of the cutting device moves upward together with the metal foam, thereby improving the flatness of the cut.

[0063] Furthermore, the longitudinal displacement of the second end 220-2 of the bubbling portion is constrained by a limiting device, thereby enhancing the stability of the bubbling portion in the vertical direction during the operation of the production system, reducing the vertical shaking of the bubbling portion, avoiding the shaking bubbling portion beating the bubbles and causing the bubbles to burst, increasing the density of the bubbles in the finished porous metal material, and improving the performance of the finished porous metal material.

[0064] In summary, after reading this detailed disclosure, it will be apparent to those skilled in the art that the aforementioned detailed disclosure may be presented only by way of example and may not be restrictive. Although not explicitly stated herein, it will be appreciated by those skilled in the art that this application is intended to encompass various reasonable changes, improvements and modifications to the embodiments. These changes, improvements and modifications are intended to be proposed by this application and are within the spirit and scope of the exemplary embodiments of this application.

[0065] In addition, certain terms in this application have been used to describe embodiments of the present application. For example, "one embodiment", "embodiments" and / or "some embodiments" mean that a particular feature, structure or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. Therefore, it can be emphasized and should be understood that two or more references to "embodiments" or "one embodiment" or "alternative embodiments" in various parts of this specification do not necessarily refer to the same embodiment. In addition, particular features, structures or characteristics may be appropriately combined in one or more embodiments of the present application.

[0066] It should be understood that in the foregoing description of the embodiments of the present application, in order to help understand a feature and for the purpose of simplifying the present application, the present application sometimes combines various features in a single embodiment, drawings or their description. Alternatively, the present application disperses various features in multiple embodiments of the present application. However, this does not mean that the combination of these features is necessary. It is entirely possible for those skilled in the art to extract some of the features and understand them as separate embodiments when reading the present application. In other words, the embodiments in the present application can also be understood as the integration of multiple secondary embodiments. This is also true when the content of each secondary embodiment is less than all the features of a single aforementioned disclosed embodiment.

[0067] In some embodiments, numbers expressing quantities or properties used to describe and claim certain embodiments of the present application are understood to be modified in some cases by the terms "about", "approximately" or "substantially". For example, unless otherwise indicated, "about", "approximately" or "substantially" may represent a ±20% variation of the value it describes. Therefore, in some embodiments, the numerical parameters listed in the written description and the attached claims are approximate values, which may vary depending on the desired properties sought to be obtained by a particular embodiment. In some embodiments, numerical parameters should be interpreted in light of the number of reported significant digits and by applying ordinary rounding techniques. Although some embodiments of the present application are described with a wide range of numerical ranges and parameters that are approximate, the specific examples are listed as accurately as possible.

[0068] The terms used herein are only used for the purpose of describing specific example embodiments and are not restrictive. For example, as used herein, the singular forms "a", "an" and "the" may also include plural forms unless the context clearly indicates otherwise. When used in this application, the terms "comprise", "include" and / or "contain" mean that the associated integers, steps, operations, elements and / or components exist, but do not exclude the existence of one or more other features, integers, steps, operations, elements, components and / or groups or that other features, integers, steps, operations, elements, components and / or groups may be added in the system / method.

[0069] It should be understood that in the foregoing description of the embodiments of the present application, unless the context clearly indicates otherwise, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "vertical", "horizontal", "lateral", "longitudinal", etc. used herein to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0070] In addition, some of the above terms may be used to express other meanings in addition to indicating a direction or position relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0071] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0072] In the present application, "X includes at least one of A, B or C" means that X includes at least A, or X includes at least B, or X includes at least C. That is, X may include only any one of A, B, and C, or may include any combination of A, B, and C and other possible contents / elements at the same time. Any combination of A, B, and C may be A, B, C, AB, AC, BC, or ABC.

[0073] In this application, unless otherwise specified, the term "and / or" is merely a term used to describe the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0074] In this application, unless explicitly stated otherwise, the association relationship between structures can be a direct association relationship or an indirect association relationship. For example, when describing "A is connected to B", unless it is explicitly stated that A is directly connected to B, it should be understood that A can be directly connected to B or indirectly connected to B; for another example, when describing "A is above B", unless it is explicitly stated that A is directly above B (AB is adjacent and A is above B), it should be understood that A can be directly above B or indirectly above B (AB is separated by other elements and A is above B). And so on.

[0075] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, articles, etc., cited herein may be incorporated herein by reference in its entirety for all purposes, except for any prosecution document history related thereto, any equivalent that may be inconsistent or conflicting with this document, or any equivalent prosecution document history that may have a limiting effect on the broadest scope of the claims now or later associated with this document. For example, if there is any inconsistency or conflict between the description, definition, and / or use of a term associated with any of the incorporated materials and the term, description, definition, and / or use associated with this document, the term in this document shall control.

[0076] Finally, it should be understood that the embodiments of the application disclosed herein are explanations of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Therefore, the embodiments disclosed in the present application are merely examples and not limitations. Those skilled in the art can adopt alternative configurations according to the embodiments in the present application to realize the application in the present application. Therefore, the embodiments of the present application are not limited to those embodiments that have been accurately described in the application.

Claims

1. A production system for producing porous metal materials, characterized in that: include: A container for containing molten metal; A ventilating device, comprising a guide portion and a bubbling portion, wherein the guide portion comprises a first cavity, the first cavity comprises at least one air inlet, the bubbling portion is plate-shaped and comprises a second cavity, the second cavity is connected to the first cavity, and the second cavity comprises a plurality of air outlet holes penetrating an upper wall of the second cavity; and A discharging device guides the foam coming out of the container to move in a target direction.

2. The production system according to claim 1, characterized in that The bubbling portion includes an upper wall plate, a lower wall plate and a side wall plate, and the upper wall plate, the lower wall plate and the side wall plate surround the second cavity.

3. The production system according to claim 2, characterized in that The foaming portion further comprises: A supporting structure is in the second cavity, with an upper end connected to the upper wall plate and a lower end connected to the lower wall plate.

4. The production system according to claim 3, characterized in that: The support structure comprises: support rods; or The supporting plate includes a plurality of through holes.

5. The production system according to claim 2, characterized in that: The upper surface of the upper wall plate includes a plurality of protrusions, and the air outlet holes are arranged at the protrusions.

6. The production system according to claim 1, characterized in that: The second cavity is in a plate shape.

7. The production system according to claim 1, characterized in that: The target direction includes a vertical direction, and the discharging device includes a discharging channel extending along the vertical direction. The discharging device includes a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are parallel and extend in a vertical direction, and the first limiting portion and the second limiting portion are spaced apart by a preset distance.

8. The production system according to claim 7, characterized in that: The first limiting portion includes at least one first roller, and the at least one first roller is arranged in the vertical direction, and the second limiting portion includes at least one second roller, and the at least one second roller is arranged in the vertical direction; or The first limiting portion includes at least one first roller belt, and the first roller belt extends along the vertical direction. The second limiting portion includes at least one second roller belt, and the second roller belt extends along the vertical direction.

9. The production system according to claim 7, characterized in that: The preset spacing is adjustable.

10. The production system according to claim 7, characterized in that It also includes a cutting device, which is vertically above the discharging device, and includes: a base; and A cutting head is installed on the base, and when the cutting head is working, it moves horizontally relative to the base to cut off the solidified foam. When the cutting head is working, the base moves upward in a vertical direction, wherein the speed at which the base moves upward is the same as the speed at which the solidified foam moves upward.

11. The production system according to claim 1, characterized in that: Also includes: A driving device, which drives one end of the bubbling part to move horizontally back and forth when in operation, thereby driving the entire bubbling part to move horizontally back and forth; as well as A limiting device limits the displacement of the other end of the bubbling portion along the vertical direction.

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