CN205324701U - Device and have its system of infiltrating infiltrates - Google Patents

Abstract

The utility model discloses an impregnation equipment and an impregnation system with the same. The impregnation equipment comprises: a first airtight container, the first container defines a first chamber; a second container, the first Two containers are placed in the first chamber and define a second chamber for containing the infiltration liquid; a forming mold, the forming mold is provided with a third chamber, and the forming mold is provided with a device for communicating with the A communication structure between the second chamber and the third chamber, the communication structure is configured such that the impregnating liquid in the second container can at least partially enter the third chamber through the communication structure by gravity Indoor: a temperature field control device, the temperature field control device is configured to control the temperature of the immersion liquid. According to the impregnation equipment of the utility model, the control is simple, the production is safe, and the product yield is high, without defects such as shrinkage cavity/shrinkage defect.

Description

Impregnation device and impregnation system with same

technical field

The utility model relates to the technical field of ceramic and metal composite material production, in particular to an impregnation device and an impregnation system with the same.

Background technique

The metal and ceramic composite substrates in the related art have low production efficiency and low yield rate, and the production equipment has a complex structure, which is difficult to manufacture and has potential safety hazards during production.

Utility model content

The utility model aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present utility model is to provide an impregnation equipment, which is simple to control, safe to produce, has a high yield of products, and has no defects such as shrinkage cavities or poor shrinkage.

Another purpose of the present utility model is to provide an infiltration system with the above infiltration equipment.

The impregnation equipment according to the present invention includes: a first container, the first container defines a first chamber; a second container, the second container is placed in the first chamber and defines a container for containing The second chamber of the infiltrating liquid; a forming mold, the forming mold is provided with a third chamber, and the forming mold is provided with a communication structure for communicating the second chamber and the third chamber, so The communication structure is configured so that the impregnating liquid in the second container can enter the third chamber at least partially through the communication structure by gravity; the temperature field control device is configured to use In order to control the temperature of the impregnating liquid, the temperature field control device includes a heating unit, the heating unit is an induction heating coil arranged outside the peripheral wall of the second container; the upper end of the second container is provided with a The thermal insulation device is used to keep the impregnating liquid in the upper part of the second container warm.

According to the impregnation equipment of the present invention, the impregnating liquid in the second container can enter into the third container under the action of gravity, so the control is simple, safe and easy to realize.

In addition, the temperature of the impregnating liquid inside the second container can be controlled, and thus the solidification speed of the impregnating liquid can be controlled, thereby ensuring the quality of the finished product without defects such as shrinkage cavity/shrinkage defects.

In addition, the impregnation equipment according to the utility model can also have the following additional technical features;

According to an embodiment of the present invention, the temperature field control device is arranged in the first container and arranged adjacent to the second container.

According to an embodiment of the present utility model, the temperature field control device includes: a cooling unit arranged below the bottom wall of the second container.

According to an embodiment of the present invention, there are multiple groups of the heating units, and the multiple groups of the heating units are sequentially distributed outside the peripheral wall of the second container from bottom to top.

According to an embodiment of the present invention, the multiple groups of heating units are arranged in the vertical direction based on the required process temperature to control the temperature gradient of the impregnation compound process.

According to an embodiment of the utility model, the forming mold includes: a first template and a second template that are oppositely arranged, and a partition is provided between the first template and the second template to separate the first template and the second template. The three-chamber is divided into two molding cavities.

According to an embodiment of the present utility model, there are multiple forming molds, and the multiple forming molds are placed in the second cavity.

According to an embodiment of the present invention, the communication structure is configured as a communication hole, and the communication hole is located above the third chamber.

According to an embodiment of the present invention, the second container is a cylindrical structure with an open upper end, and during the impregnation and compounding process, the liquid level of the impregnation liquid is above the communication hole.

According to an embodiment of the present invention, the first container is an airtight container, and the first chamber is evacuated before impregnation and compounding.

According to an embodiment of the present invention, the first container includes: a body part and a top cover part, and the top cover part is openably and closably arranged on the body part for opening or closing the first cavity room.

According to an embodiment of the present utility model, the top cover is provided with a temperature measuring hole for measuring the temperature of the soaking liquid.

Utility model According to an embodiment of the utility model, the first container is provided with a vacuum valve and a pressure valve.

According to an embodiment of the present invention, the second container is a cylindrical structure with an open upper end, and the longitudinal section of the second chamber is an inverted truncated cone.

According to an embodiment of the present utility model, the infiltration equipment is used for making aluminum silicon carbide composite material plates.

The impregnation system according to the present invention includes: the above impregnation equipment; the impregnation liquid supply equipment, the impregnation liquid supply equipment is used to supply the impregnation liquid into the impregnation equipment; the vacuum equipment, the Vacuum equipment is connected to the impregnation equipment for vacuuming the interior of the impregnation equipment; high-pressure loading equipment, the high-pressure loading equipment is connected to the impregnation equipment for pressurizing/releasing the impregnation equipment pressure.

According to the impregnation system of the utility model, the finished product quality of the product can be guaranteed and the production cost of the product can be reduced.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is the schematic diagram of the impregnation equipment according to the utility model embodiment;

Fig. 2 is a schematic diagram of a forming mold placed in a second container according to an embodiment of the present invention.

Reference signs:

Infiltration equipment 100,

The first container 110, the body part 111, the top cover part 112, the first chamber 101, the vacuum valve 113, the pressure valve 114, the boost valve 114a, the pressure relief valve 114b,

The second container 120, the second chamber 102,

Forming mold 130, first template 131, second template 132, third cavity 103, communication hole 104, cavity 105,

Temperature field control device 140, cooling unit 141, heating unit 142,

Partition 150.

detailed description

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components , unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

The impregnation equipment 100 of the embodiment of the utility model is described in detail below in conjunction with FIGS. limited to this.

The infiltration equipment 100 according to the embodiment of the present utility model may include a first container 110 , a second container 120 , a forming mold 130 and a temperature field control device 140 .

Wherein, the first container 110 is airtight and defines the first chamber 101 , and the first container 110 is an airtight container to facilitate subsequent vacuuming of the first chamber 101 .

The second container 120 is placed in the first chamber 101 and defines the second chamber 102 for containing the infiltration liquid. The infiltration liquid can be molten metal, such as aluminum liquid or copper liquid. Since the second container 120 needs to contain high-temperature molten liquid such as molten metal, the second container 120 needs to be resistant to high temperature. For example, the second container 120 can be a crucible.

The forming mold 130 is provided with a third chamber 103 for placing the product to be formed (for example, a silicon carbide skeleton), and the forming mold 130 is provided with a communication structure for communicating with the second chamber 102 and the third chamber 103, and the communication structure is configured Such that the immersion liquid in the second chamber 102 can enter the third chamber 103 at least partially through the communication structure by gravity.

That is to say, the impregnating liquid in the embodiment of the present invention can flow into the third chamber 103 under the action of gravity, which is simple and safe to operate, without the need of anti-gravity operation, for example relying on pressure to make the impregnating liquid flow from bottom to top into the mold.

Optionally, the communication structure may be a communication hole 104, and the communication hole 104 may be arranged above the third chamber 103, so that the infiltrating liquid can enter the third chamber 103 through the communication hole 104, and under the action of pressure Next, generate a composite material plate with the product to be formed.

The temperature field control device 140 is configured to control the temperature of the immersion liquid. For example, the temperature in the second container 120 can be maintained at a certain temperature, or the temperature of the impregnating liquid in the third chamber 103 can be gradually lowered from bottom to top, so as to realize the step-by-step molding of the composite material board.

The working process of the impregnation equipment 100 in the embodiment of the present utility model is briefly described below.

Place the forming mold 130 in the second container 120, heat the second container 120, and when the temperature of the second container 120 reaches the set value, introduce the impregnating liquid into the second container 120 until the impregnating liquid is submerged in the forming mold 130 The connecting structure above, the impregnating liquid enters the third chamber 103 through the connecting structure under the action of gravity;

Vacuumize the first chamber 101 to avoid the generation of fine pores inside the finished product, fill the first chamber 101 with inert gas to pressurize the first container 110, and keep the pressure for a period of time;

The temperature field control device 140 controls the temperature of the impregnating liquid, so that the temperature of the impregnating liquid gradually decreases from bottom to top, that is, the temperature of the lower part of the impregnating liquid decreases first, and then the temperature of the upper part of the impregnating liquid decreases, thus , the upper impregnating liquid can solidify and feed the gradually solidifying impregnating liquid in the lower part;

After the solidification is completed, the first chamber 101 is depressurized, the second container 120 is taken out and the solidified metal block inside is ejected, then the metal block is cut to take out the forming mold 130, and the forming mold 130 is removed with a demoulding tool. The molded parts in the ejection.

According to the impregnation equipment 100 of the embodiment of the present invention, the impregnation liquid in the second container 120 can enter into the third container under the action of gravity, so the control is simple, safe and easy to implement.

In addition, the temperature of the impregnating liquid inside the second container 120 can be controlled, thereby controlling the solidification speed of the impregnating liquid, ensuring the quality of the finished product without defects such as shrinkage cavities/shrinkage defects.

In some embodiments of the present invention, as shown in FIG. 1 , the temperature field control device 140 is disposed in the first container 110 and adjacent to the second container 120 .

Specifically, the temperature field control device 140 includes a cooling unit 141 and a heating unit 142 , the cooling unit 141 is disposed below the bottom wall of the second container 120 , and the heating unit 142 may be disposed outside the peripheral wall of the second container 120 .

Thus, the cooling of the impregnating liquid can start from the bottom, ensuring that the molten impregnating liquid at the top can feed the gradually solidified impregnating liquid below, avoiding defects such as shrinkage cavities or poor shrinkage of the formed product.

Advantageously, as shown in FIG. 1 , there are multiple groups of heating units 142 , each group of heating units 142 surrounds the outside of the peripheral wall of the second container 120 , and multiple groups of heating units 142 are sequentially distributed in the second container 120 in the direction from bottom to top. outside the peripheral wall of the container 120 . Thus, the cooling of the impregnating liquid can be gradually controlled by opening or closing each group of heating units 142 to ensure the yield rate of the product.

Preferably, the heating unit 142 may be an induction heating coil. Therefore, the heating of the impregnating liquid is realized through the magnetic field, which is safe and reliable and occupies less space.

Multiple groups of heating units 142 are arranged in an up-and-down direction based on the process temperature required by the product to be formed to perform temperature gradient control on the impregnation and compounding process. In other words, by arranging multiple sets of heating units 142 in the up and down direction, and closing and adding multiple sets of heating units 142 sequentially from bottom to top, the gradual solidification of the impregnating liquid can be realized, so that the upper part of the impregnating liquid can be heated to the lower part. Freezing and feeding.

For example, the number of heating units 142 can be three or four. During the impregnation and compounding process, the cooling unit 141 at the bottom can be used to cool the impregnating liquid, and then gradually close multiple groups of heating units 142 from bottom to top, thereby realizing The temperature gradient control of the impregnation solution during the impregnation compounding process.

Advantageously, the height of the impregnating liquid in the second container 120 is greater than that of the mould, so that the impregnating liquid in the second container 120 can solidify and feed the impregnating liquid in the third chamber 103 at any time. In addition, defects such as shrinkage cavities can be left in the metal block above the mold without affecting the formed part.

In some embodiments of the present utility model, as shown in FIG. 2 , the molding die 130 includes a first template 131 and a second template 132 arranged oppositely, and a partition 150 is provided between the first template 131 and the second template 132 to The third chamber 103 is divided into two cavities 105 .

Each cavity 105 can place a product to be formed (for example, a silicon carbide skeleton), and when the product to be formed is placed in the cavity 105, at least two sides on it (for example, the two surfaces with the largest projected area) should It is spaced apart from the inner wall of the cavity 105 and the partition 150 to facilitate the inflow of the impregnating liquid to combine with the product to be formed.

Optionally, there may be multiple molding molds 130 , and multiple molding molds 130 are placed in the second cavity 102 . Thus, the molding efficiency of the product can be improved, and the production cost of the product can be reduced at least to a certain extent.

In some embodiments of the present utility model, as shown in Figures 1 and 2, the second container 120 is a cylindrical structure with an open upper part, and during the process of impregnation and compounding, the liquid level of the impregnating liquid is located between the communication holes 104 superior. Thus, it can be ensured that the impregnating liquid above the mold can feed the impregnating liquid in the third chamber 103 .

Preferably, the first chamber 101 may be evacuated before infiltration and compounding. Thus, the generation of fine pores inside the finished product can be avoided.

In some embodiments of the present invention, as shown in FIG. 1 , the first container 110 includes a body portion 111 and a top cover portion 112, and the top cover portion 112 is openably and closably arranged on the body portion 111 for opening or closing. The first chamber 101 . When the top cover portion 112 closes the first chamber 101 , the first container 110 is an airtight container.

That is to say, the first container 110 can be reused and has a simple structure, which improves the production efficiency of the product and reduces the cost of the product at least to a certain extent.

Advantageously, as shown in FIG. 1 , the top cover part 112 is provided with a temperature measuring hole 112a for measuring the temperature of the immersion liquid. When the temperature measuring hole on the top cover 112 detects that the temperature of the impregnating liquid inside the second container 120 reaches the set value, the vacuuming of the first chamber 101 can be stopped, and then the first chamber 101 can be pressurized , the maximum pressure can reach 9Mpa.

In some embodiments of the present invention, the upper end of the second container 120 is further provided with a thermal insulation device for keeping the soaking liquid in the upper part of the second container 120 warm. In this way, excessive loss of heat in the second container 120 is avoided, so that the impregnating liquid in the upper part of the second container 120 is kept in a molten state during the impregnation and compounding process, and the impregnating liquid in the third chamber 103 can be fed. .

In some embodiments of the present utility model, as shown in FIG. 1 , the first chamber 101 is provided with a vacuum valve 113 and a pressure valve 114 . The vacuum valve 113 is connected with a vacuum device to vacuumize the first chamber 101 , and the pressure valve 114 is connected with a high-pressure loading device to pressurize/release the first chamber 101 . Specifically, the pressure valve 114 may include a boost valve 114a and a pressure relief valve 114b.

In some embodiments of the present invention, as shown in FIG. 1 and FIG. 2 , the second container 120 is a cylindrical structure with an open upper end, and the longitudinal section of the second chamber 102 is an inverted frustum of a cone. That is to say, the area of the cross section of the second chamber 102 gradually increases from bottom to top. As a result, the impregnating liquid in the second container 120 can more easily pass through the forming mold 130 , reducing the amount of impregnating liquid used each time.

The impregnation system of the embodiment of the utility model is briefly described below.

The infiltration system according to the embodiment of the present utility model includes the infiltration equipment 100 of the above-mentioned embodiment, the infiltration liquid supply equipment, the vacuum equipment and the high-pressure loading equipment.

Wherein, the impregnating liquid supply equipment is connected with the impregnating equipment 100 for supplying the impregnating liquid into the impregnating equipment 100; the vacuuming equipment is connected with the impregnating equipment 100 for vacuuming the interior of the impregnating equipment 100; the high pressure loading equipment, The high pressure loading equipment is connected to the impregnation equipment 100 for pressurizing/depressurizing the impregnation equipment 100 .

According to the impregnation system of the embodiment of the utility model, the quality of the finished product can be guaranteed and the production cost of the product can be reduced.

A specific embodiment and working process of the impregnation system of the present invention will be described in detail below.

The impregnation equipment 100 of the embodiment of the utility model can be used to realize precise molding of an aluminum silicon carbide composite material IGBT (Insulated Gate Bipolar Transistor) substrate.

The top cover 112 of the first container 110 can be opened and closed automatically. The top cover 112 is provided with a temperature measuring hole 112a. The inner wall of the first container 110 is made of stainless steel and polished. The inside can withstand high pressure and the maximum service temperature can reach 1250 degree; the cylinder wall of the first container 110 is provided with a vacuum valve 113 and a pressure valve 114 (may include: a booster valve 114a and a pressure relief valve 114b); temperature.

A cooling unit 141 is arranged below the bottom wall of the second container 120, and a cooling medium is introduced inside the cooling unit 141; the flow rate and input temperature of the cooling medium can be adjusted according to the process requirements, thereby adjusting the cooling rate of the cooling unit 141 to finally adjust the first Second, the solidification speed of the soaking liquid inside the container 120.

A second container 120 is arranged inside the first container 110, and the second container 120 can be placed on the top surface of the cooling unit 141; a heating unit 142 is arranged on the periphery of the second container 120, which is divided into an upper heating unit and a lower heating unit that can be controlled separately; The upper heating unit and the lower heating unit can heat the second container 120 and the substance inside the second container 120 (that is, the impregnation liquid), and the heating temperature can reach up to 1250 degrees; the port of the second container 120 can also be provided with thermal insulation device (not shown); a forming mold 130 is placed inside the second container 120, and a partition 150 is provided inside the forming mold 130 to separate the third chamber 103 into two forming cavities 105, and a silicon carbide skeleton is placed in the forming cavity 105 The top of the forming mold 130 is provided with a communication hole 104 for the aluminum liquid to flow into the third chamber 103 in the forming mold 130; the second container 120, the forming mold 130 and the separator 150 are all resistant to high temperatures above 800 degrees and have a relatively high thermal expansion coefficient. It is made of low-cost materials (such as graphite, tungsten and molybdenum materials, etc.), and can be used repeatedly.

The aluminum liquid automatic feeding system can load the molten aluminum alloy liquid from the melting furnace (not shown in the figure) into the second container 120, and the weight of the aluminum liquid loaded each time can be adjusted according to the process requirements. The vacuum system can perform vacuum treatment on the first container 110, and the ultimate vacuum value is 0.1 Pa, so as to ensure that all the gas inside the silicon carbide skeleton is exhausted before impregnation and compounding. The high-pressure loading system can pressurize the first container 110, and the pressurizing medium is an inert gas (such as nitrogen/argon), and the maximum pressure can reach 9Mpa.

Aluminum silicon carbide composite material is a new type of composite material, which has the advantages of low density, high thermal conductivity, and low thermal expansion coefficient. It is widely used in electronic heat dissipation packaging and aerospace fields. In the environment of energy shortage and severe air pollution, many companies are launching vehicles with new energy power solutions. Aluminum silicon carbon composite materials are key components in new energy power control devices, and are used to carry chips in IGBT modules. And heat dissipation, the application prospect is long-term. In the actual preparation process and the use of finished products, it is necessary to control the thickness of the aluminum coating on the surface of the silicon carbide skeleton within 0.15mm, the flatness within 0.2mm, the internal texture is tight, no pores, shrinkage cavities, smooth surface, no scratches, sink marks. Since the silicon carbide skeleton has a pore structure and does not infiltrate with the aluminum alloy liquid, it is generally compounded by high temperature and high pressure infiltration process.

Specific implementation plan: adopt the principle of near-net shape, design and process the mold core of the mold 130 according to the external dimensions of the silicon carbide skeleton, and ensure that the gap between the silicon carbide skeleton and the mold core in the mold is ≤0.15mm on one side, so as to control the surface of the composite material The thickness of aluminum cladding ensures product quality. A partition 150 is placed in the middle of the first template 131 and the second template 132 which are arranged oppositely, and a corresponding number of forming molds 130 and partitions 150 can be placed according to the size of the composite material and the second container 120 .

The forming mold 130 and the separator 150 equipped with the silicon carbide skeleton are placed inside the second container 120 , the top cover of the first container 110 is automatically opened, and then the second container 120 is placed on the cooling unit 141 . The heating unit 142 heats the second container 120. When the temperature of the forming mold 130 reaches the set value, the aluminum liquid automatic feeding system loads the set weight of aluminum liquid into the second container 120, and the aluminum liquid completely submerges the mold. The top cover of the first container 110 is automatically closed, the vacuum valve 113 is opened, the vacuum system works, and the first container 110 is vacuumed, and the ultimate vacuum value can reach 0.1 Pa. When the temperature measuring hole 112a of the top cover detects that the internal temperature of the second container 120 reaches the set value, the vacuum valve 113 is closed, the booster valve 114a is opened, and the high-pressure loading system pressurizes the first container 110 (inert gas), the maximum pressure It can reach 9Mpa. When the internal pressure of the first container 110 reaches the set value, the booster valve 114a is closed and the pressure maintaining process is performed. Under the action of the pressure, the molten aluminum can be better compounded with the silicon carbide ceramic skeleton in the cavity 105 .

After the pressure holding is completed, the cooling medium of the cooling unit 141 is introduced at a certain speed, the lower heating unit stops working, and the upper heating unit keeps working, so that the impregnating liquid in the second container 120 is sequentially solidified from the bottom to the top; after solidification for a period of time, The upper heating unit also stops working, and at the same time increases the gradient to control the flow rate of the cooling medium in the cooling tray to complete the sequential solidification of the upper part of the preform inside the second container 120 . During the entire sequential cooling process of the impregnating liquid inside the second container 120, the upper heating unit is in working state at the beginning to ensure that the aluminum liquid in the upper part of the forming mold 130 is at a higher temperature, and the lower part can be solidified and fed.

After the solidification process is completed, the pressure release valve 114b is opened to release the internal pressure of the first container 110 , the top cover 112 is opened and the second container 120 is taken out. After cooling, the preform inside the second container 120 is taken out by tooling, the preform is cut, and the forming mold 130 is taken out. The aluminum-silicon carbide composite material in the forming mold 130 is ejected with a demoulding tool to obtain a near-net-shaped finished product. From the actual production situation, adopting the cooling gradient control process of the utility model, the good product rate is extremely high. After post-processing and surface treatment of the near-net-shaped finished product, a qualified finished product can be obtained. The first container 110 , the second container 120 , the molding die 130 and the separator 150 can all be reused, and the cut aluminum ingots can also be remelted for use.

Beneficial effect:

1. The molding die 130 is used for near-net molding, which meets the requirements that the thickness of the outer surface of the composite material is not more than 0.15mm and the flatness is not more than 0.2mm. The second container 120 and the molding die 130 can be reused, which greatly saves the cost of consumables;

2. Using the gravity of the impregnating liquid for feeding, which is different from the feeding of the impregnating liquid in the direction of anti-gravity, the control is simple and easy to realize;

3. The cooling and solidification rate of the impregnating liquid inside the second container 120 is controllable, which fully guarantees the quality of the finished product without shrinkage cavity/shrinkage defect;

4. The impregnation liquid is smelted outside, which improves the safety factor and reduces the volume of equipment;

5. Before impregnation and compounding, vacuum treatment is adopted to avoid the generation of fine pores inside the finished product;

6. The second container 120 is placed inside the first container 110, which has a high safety factor and is conducive to ensuring production safety.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limitations of the present invention, and those skilled in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (16)

1. A kind of impregnation equipment, is characterized in that, comprises: a first container defining a first chamber; a second container placed within the first chamber and defining a second chamber for holding an infiltration liquid; A forming mold, the forming mold is provided with a third cavity, and the forming mold is provided with a communication structure for communicating the second cavity and the third cavity, and the communication structure is configured such that the first The soaking liquid in the second container can enter the third chamber at least partially through the communication structure by gravity; A temperature field control device, the temperature field control device is configured to control the temperature of the immersion liquid, the temperature field control device includes a heating unit, and the heating unit is arranged outside the peripheral wall of the second container induction heating coil; The upper end of the second container is provided with a thermal insulation device for keeping the soaking liquid in the upper part of the second container warm. 2 . The infiltration equipment according to claim 1 , wherein the temperature field control device is arranged in the first container and adjacent to the second container. 3 . 3. The impregnation equipment according to claim 1, wherein the temperature field control device comprises: a cooling unit, the cooling unit is arranged below the bottom wall of the second container. 4. The impregnation equipment according to claim 3, characterized in that there are multiple groups of the heating units, and the multiple groups of the heating units are sequentially distributed on the peripheral wall of the second container in the direction from bottom to top outside. 5 . The impregnation equipment according to claim 4 , wherein the multiple groups of heating units are arranged in an up-and-down direction based on the required process temperature to control the temperature gradient of the infiltration composite process. 6 . 6. The impregnation equipment according to claim 1, wherein the forming mold comprises: a first template and a second template oppositely arranged, and a partition is arranged between the first template and the second template plate to divide the third chamber into two molding cavities. 7. The impregnation equipment according to claim 6, characterized in that there are multiple forming molds, and the multiple forming molds are placed in the second chamber. 8. The infiltration equipment according to claim 1, wherein the communication structure is configured as a communication hole, and the communication hole is located above the third chamber. 9. The impregnation equipment according to claim 8, characterized in that, the second container is a cylindrical structure with an open upper end, and during the impregnation and compounding process, the liquid level of the impregnation liquid is located at the above the connecting hole. 10. The impregnation equipment according to claim 1, wherein the first container is a closed container, and the first chamber is evacuated before impregnation and compounding. 11. The impregnation equipment according to claim 1, wherein the first container comprises: a body part and a top cover part, and the top cover part is openably and closably provided on the body part for use in Open or close the first chamber. 12. The impregnation equipment according to claim 11, characterized in that, the top cover is provided with a temperature measuring hole for measuring the temperature of the impregnating liquid. 13. The impregnation equipment according to claim 1, wherein a vacuum valve and a pressure valve are arranged on the first container. 14. The impregnation equipment according to claim 1, characterized in that, the second container is a cylindrical structure with an open upper end, and the longitudinal section of the second chamber is an inverted truncated cone. 15. The infiltration equipment according to any one of claims 1-14, characterized in that the infiltration equipment is used for making aluminum silicon carbide composite plates. 16. An impregnation system, characterized in that it comprises: The impregnation device according to any one of claims 1-14; an impregnating liquid supply device, the impregnating liquid supply device is used to supply the impregnating liquid into the impregnating device; Vacuuming equipment, the vacuuming equipment is connected to the impregnation equipment for vacuuming the inside of the impregnation equipment; High-pressure loading equipment, the high-pressure loading equipment is connected to the infiltration equipment for pressurizing/depressurizing the infiltration equipment.