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 containing molten metal and comprising an opening; the ventilation device comprises an air channel, the air channel is configured to allow target gas to pass through, and a plurality of through holes are formed in a target area of a target section of the ventilation device; the discharging device comprises a discharging channel extending in the vertical 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] To solve the above technical problems, the present application discloses a production system for producing porous metal materials, comprising: a container for accommodating molten metal liquid, comprising an opening; a ventilation device, comprising an airway, wherein the airway is configured to allow a target gas to pass through, and a target area of ​​a target section of the ventilation device is provided with a plurality of through holes; and a discharge device, comprising a discharge channel extending in a vertical direction.

[0005] In some embodiments, the discharge channel is directly above the opening.

[0006] In some embodiments, 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 to form the discharging channel.

[0007] 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.

[0008] In some embodiments, the preset spacing is adjustable.

[0009] In some embodiments, the production system further includes a cooling device, which is outside the discharge channel and cools the foam in the discharge channel, wherein the foam is in a solid state after cooling, wherein: the cooling device cools the foam by cold air; the cooling device cools the foam by cooling water; and / or the cooling device cools the foam by cold mist.

[0010] In some embodiments, the production system further includes a cutting device, which is located vertically above the discharging device, and includes: a base; and a cutting head installed on the base and configured to cut the solid foam.

[0011] In some embodiments, when the cutting head is working, the base moves upward in a vertical direction, wherein a speed at which the base moves upward is the same as a speed at which the solid foam moves upward.

[0012] In some embodiments, the production system further comprises a driving device for driving the target segment to move horizontally back and forth, wherein the driving device comprises: a crank-connecting rod mechanism; or a sliding rod and slide rail mechanism.

[0013] In some embodiments, the production system further includes: a guiding device, guiding the container to move in a vertical direction or in a horizontal direction.

[0014] The production system provided by the present application introduces a target gas into a container through a ventilation device, and the target gas moves upward to form a foam. A discharge channel arranged above the container outlet and extending in a vertical direction guides the foam to move upward in a 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. Furthermore, the cooling and solidification of the liquid foam metal is accelerated by the cooling device, thereby improving the production efficiency. The thickness of the formed porous metal is adjusted by 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 a cutting device, and the cutting head of the cutting device moves upward together with the metal foam, thereby improving the flatness of the cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 A schematic diagram of a production system provided according to an embodiment of the present application is shown;

[0017] Figure 2 A schematic diagram showing a production system in which a discharging device extends in a horizontal direction;

[0018] Figure 3 A cross-sectional view of a foamed aluminum plate is shown; and

[0019] Figure 4 A schematic diagram of a driving device provided according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0020] 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.

[0021] The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting.

[0022] 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.

[0023] 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.

[0024] Figure 1 A production system 01 provided according to an embodiment of the present application is shown. The production system 01 can be used to 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 with the metal being aluminum. Reference Figure 1 The production system 01 may include a container 100, a venting device 200 and a discharging device 300. In some embodiments, the production system 01 may also include a driving device 400, a cutting device 500, a cooling device ( Figure 1 (not shown), the supporting device 700 and / or the guiding device 800.

[0025] The container 100 includes a containing cavity 110. The container 110 can contain molten metal liquid. As an example, the molten metal liquid can 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 can 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 can 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, the molten metal foam can move upward and flow out of the opening 101. The discharge device 300 provided near the opening 101 guides the metal foam flowing out of the opening 101 to the discharge channel 301. As an example, a guide device 901 can be provided in the container 100. The guide device 901 can guide the bubbles to the entrance of the discharge channel 301.

[0026] The ventilation device 200 includes an airway 201. The airway 201 is configured to allow a target gas to pass through. In some embodiments, the target gas may be air. As an example, the air may be compressed air. In some embodiments, the target gas may be carbon dioxide gas. In some embodiments, the target gas may be an inert gas. As an example, the inert gas may 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 more likely to move upward.

[0027] The ventilation device 200 can guide the gas of the gas source into the container 100. The ventilation device 200 may include an inlet 210 and an outlet 220. The inlet 210 is connected to the gas source. The outlet 220 is in the container 100 to pass the target gas into the molten metal liquid in the container 100. As an example, the outlet 220 is close to the bottom 102 of the container 100. As an example, the target area S1 of the target section L1 of the ventilation device 200 is provided with a plurality of through holes. The outlet 220 may include the through holes. As an example, the target section L1 may be a portion of the ventilation device 200 that is horizontally placed in the container, such as Figure 1 As shown, as an example, the target area S1 is the surface of the target segment L1 facing the opening 101. The through hole allows the target gas entering the molten metal via the gas passage 201 to flow out into the molten metal and move upward in a vertical direction to form foam.

[0028] As an example, when the production system 01 is working, the ventilation device 200 reciprocates in the horizontal direction. For example, one end of the ventilation device 200 can be connected to the driving device 400, and the ventilation device 200 can reciprocate horizontally under the drive of the driving device 400. In some embodiments, the other end of the ventilation device 200 can be in the container 100, such as Figure 1 In some embodiments, the other end of the ventilation device 200 may be outside the container 100 and its longitudinal displacement is constrained to ensure that the target segment 220 is stable in the vertical direction when the ventilation device 200 reciprocates, so as to avoid affecting the bubbles that have just come out of the through hole of the target segment 220 and causing the bubbles to burst.

[0029] 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. Under the action of the target gas, 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.

[0030] In some embodiments, the discharge channel 301 extends in the horizontal direction. As an example, Figure 2 A schematic diagram of a production system 02 in which a discharge device 301 extends in a horizontal direction is shown. The metal foam moves upward under the action of gas pressure and flows out of the opening 101. Then, under the guidance of the guide portion 901, it turns and enters the discharge channel 301 extending horizontally, and moves horizontally along the discharge channel 301 and is formed into solid foam. In the process of the metal foam moving horizontally 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 3 A cross-sectional view of a foam aluminum plate is shown. Figure 3 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.

[0031] In some embodiments, the discharge channel 301 extends in the vertical direction. Figure 1The discharging device 300 includes a discharging channel 301 extending in the vertical direction. After the metal foam moves upward and flows out from the opening 101, it enters the discharging channel 301 extending in the vertical direction and moves vertically upward to be formed into solid foam. In the process of the movement of the metal foam, the moving 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 discharging channel 301 can be directly above the opening 110. The entrance of the discharging channel 301 is directly opposite to the target area S1 where the vent hole is provided. After the metal foam flows out from the opening 101, it does not need to turn and directly moves vertically upward to enter the discharging channel 301, thereby avoiding the influence of the bend on the bubbles and improving the bubble density and uniformity of the formed metal foam.

[0032] 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.

[0033] Continue to refer Figure 1 In 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.

[0034] 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.

[0035] 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.

[0036] Compared with the metal foam at the bottom, the metal foam at the top takes longer to come out of the container 100, 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, in the vertical direction, the lower the roller group is, the denser the arrangement density is, so as to prevent the liquid molten metal foam from spreading at the interface between the opening 101 and the discharge channel 301. The higher the roller group is, the sparser the arrangement density is, so as to reduce the resistance to the upward movement of the metal foam.

[0037] 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.

[0038] 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 in the discharge channel 301, and the foam is solid after cooling. In some embodiments, the cooling device cools the foam by cold air. In some embodiments, the cooling device cools the foam by cooling water. In some embodiments, the cooling device cools the foam by cold mist.

[0039] 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.

[0040] In some embodiments, the cutting device 500 includes a base 510 and a cutting head 520. Figure 1The 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 solid foam.

[0041] 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.

[0042] 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.

[0043] The driving device 400 is used to drive the target segment L1 of the ventilation device 200 to move back and forth in the horizontal direction. In combination with the above description, the target area S1 of the target segment L1 of the ventilation device 200 is provided with a plurality of through holes to introduce the target gas into the metal solution. The driving device 400 drives the ventilation device to move back and forth horizontally to accelerate the bubbles from falling off the ventilation device, which not only improves the efficiency but also prevents the bubbles from being too large.

[0044] In some embodiments, the driving device 400 includes a crank-connecting rod mechanism, one end of which is connected to the motor, and the other end is connected to the ventilation device 200, and the crank-connecting rod mechanism converts the continuous rotation output by the motor into the reciprocating movement of the ventilation device 200 in the horizontal direction. As an example, 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 part 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 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.

[0045] In some embodiments, the driving device may include a slide bar and slide rail mechanism. Figure 4 FIG. 6 is a schematic diagram showing the structure of another driving device 600 provided according to an embodiment of the present application. Figure 4 The driving device 600 may include a motor 610, a slide bar 620, and a slide rail 630. The motor 610 may be a linear motor. The output end of the motor 610 is connected to the slide bar 620, and the motor 610 drives the slide bar 620 to move horizontally back and forth, thereby driving the ventilation device 200 connected to one end of the slide bar 620 to move horizontally back and forth. The slide rail 630 is used to support the slide bar 620 and can guide the slide bar 620 to move back and forth in the horizontal direction.

[0046] The guide device 800 is used to guide the container 100 to move in a vertical direction or in a horizontal direction. Figure 1 In 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 right sides 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.

[0047] 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.

[0048] In summary, the present application provides a production system for producing porous metal materials, wherein a target gas is introduced into a container 100 through a venting device 200, the target gas moves upward to form foam, and a discharge channel 301 arranged above the outlet of the container 100 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. Further, the cooling and solidification of the liquid foam metal is accelerated by the cooling device, thereby improving the production efficiency. The thickness of the formed porous metal is adjusted by adjusting the width of the discharge channel 301, which is simple to operate and low in cost. The rollers or roller belts are arranged in the first limiting part and the second limiting part to provide a driving force for the metal foam to move upward. The solid porous material coming out of the outlet of the discharge channel 301 is cut off by the cutting device 500, and the cutting head 520 of the cutting device 500 moves upward with the metal foam, thereby improving the flatness of the cut.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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, comprising an opening; A ventilation device, comprising an airway, the airway being configured to allow a target gas to pass therethrough, a target area of ​​a target section of the ventilation device being provided with a plurality of through holes; and The discharging device comprises a discharging channel extending in a vertical direction.

2. The production system according to claim 1, characterized in that The discharge channel is directly above the opening.

3. The production system according to claim 1, characterized in that The discharging device comprises a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are parallel to each other and extend in a vertical direction, and the first limiting portion and the second limiting portion are spaced apart by a preset distance to form the discharging channel.

4. The production system according to claim 3, 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.

5. The production system according to claim 3, characterized in that: The preset spacing is adjustable.

6. The production system according to claim 1, characterized in that: Also includes A cooling device is provided outside the discharge channel to cool the foam in the discharge channel, wherein the foam is in a solid state after being cooled, wherein: The cooling device cools the foam by cold air; The cooling device cools the foam by cooling water; and / or The cooling device cools the foam by means of cold mist.

7. The production system according to claim 1, characterized in that: It also includes a cutting device, which is vertically above the discharging device, and includes: a base; and A cutting head, mounted on the base, is configured to cut off the solid foam.

8. The production system according to claim 7, characterized in that 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 solid foam moves upward.

9. The production system according to claim 1, characterized in that: It also includes a driving device for driving the target segment to move horizontally back and forth, wherein the driving device includes: Crank-connecting rod mechanism; or Sliding bar and slide rail mechanism.

10. The production system according to claim 1, characterized in that Also includes: A guiding device guides the container to move in a vertical direction or in a horizontal direction.

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