Core replacement type molten aluminum crystallization launder and using method thereof

Abstract

The invention provides a core replacing type molten aluminum crystallization launder and a using method thereof, and relates to the technical field of non-ferrous metal metallurgical equipment.The core replacing type molten aluminum crystallization launder comprises a launder body and an inner core assembly, a liquid flowing groove is formed in the top of the launder body, and a containing groove is formed in the bottom of the launder body; the inner core assembly is arranged in the containing groove, the inner core assembly and the containing groove are detachably installed, the inner core assembly comprises a crystallizer inner core and a heating plate inner core, and the crystallizer inner core and the heating plate inner core are alternately connected with the containing groove; according to the core replacement type molten aluminum crystallization launder, the working mode of the launder is adjusted by replacing different inner cores, different actual requirements are met, meanwhile, the launder body is easier to maintain and upgrade, it is effectively guaranteed that all areas in the launder are dried evenly and thoroughly, and it is guaranteed that the subsequent cooling crystallization process is conducted smoothly.

Description

Technical Field

[0001] The invention relates to the technical field of nonferrous metallurgical equipment, and in particular to a core-replacement type aluminum liquid crystal launder and a use method thereof. Background Art

[0002] In the casting production process of aluminum alloys, it is a crucial step to perform (pre) crystallization treatment before pouring the molten aluminum into the mold. The purpose is to quickly reduce the temperature of the aluminum liquid and form a preliminary crystal structure in the aluminum liquid, thereby optimizing the performance of the aluminum material in the subsequent casting process. To achieve this goal, the industry often uses a flow trough with a crystallization function, which is designed to cool the aluminum liquid as it flows through. Traditional flow troughs with crystallization functions usually adopt a fixed structure, and a circulating water system is directly integrated inside it. The circulating water absorbs and takes away the heat released by the aluminum liquid, thereby achieving the effect of rapid cooling and (pre) crystallization.

[0003] However, before casting production or during use, the launder needs to be cleaned or coated with a release agent regularly to ensure production quality and extend service life. Since a circulating water system is fixed directly inside the launder, it becomes extremely difficult to pre-dry the launder. The use of open flames or electric heating is not only inefficient, but also difficult to accurately control the heating power and causes uneven heating, which can easily lead to incomplete drying of certain areas inside the launder, and may cause explosions and other serious safety accidents when in contact with high-temperature molten aluminum. Summary of the invention

[0004] Based on this, in order to solve the problem that the existing launder becomes extremely difficult during drying pretreatment, one of the purposes of the present invention is to provide a core-replacement type aluminum liquid crystal launder, and its specific technical solution is as follows:

[0005] A core-replaceable aluminum liquid crystallization flow channel comprises a flow channel body and an inner core component, wherein a liquid flow channel is arranged on the top of the flow channel body, and a receiving groove is arranged on the bottom of the flow channel body; the inner core component is arranged in the receiving groove and is detachably mounted on the receiving groove, and the inner core component comprises a crystallizer inner core and a heating plate inner core, and the crystallizer inner core and the heating plate inner core are respectively alternately connected to the receiving groove.

[0006] Furthermore, a cooling water channel is provided in the inner core of the crystallizer, and the cooling water channel is arranged in a curved manner. The cooling water channel includes an inlet water channel, a transition water channel and an outlet water channel, and the inlet water channel, the transition water channel and the outlet water channel are connected in sequence. The outlet water channel is arranged below the side where the aluminum liquid first enters the flow trough, and the distance from the outlet water channel to the flow trough is smaller than the distance from the inlet water channel to the flow trough. The cross-sectional area of ​​the inlet water channel is 3-15 times the cross-sectional area of ​​the outlet water channel.

[0007] Furthermore, a resistance wire is arranged in the inner core of the heating plate, and the outside of the resistance wire is wrapped with a fire-resistant insulating material.

[0008] Furthermore, a temperature sensor is provided on the inner core of the heating plate for detecting and displaying the real-time temperature, and the temperature sensor is electrically connected to the resistance wire.

[0009] Furthermore, clamping blocks are respectively arranged on both sides of the inner core of the crystallizer and the inner core of the heating plate, a clamping slot is arranged in the accommodating groove, and the clamping blocks are engaged with the clamping slots.

[0010] Furthermore, a plurality of the crystallizer inner cores and the heating plate inner cores are provided, and each crystallizer inner core and each heating plate inner core is provided with an electronic sensor for identifying the type of the inner core component.

[0011] Furthermore, it includes a mechanical locking device, which includes a conductive block, a chip and a sensing group. The sensing group is composed of two identical sensing structures, which are electrically connected. The sensing structure is arranged in the accommodating groove, the conductive block is arranged on the inner core component and corresponds to the position of the sensing structure, the chip is arranged on the outer surface of the inner core component, and the conductive block is connected to the chip through a wire. When the conductive block presses down the sensing structure, if the wire and the sensing structure form a complete circuit, the chip sends a signal, and the inner core component is correctly installed and locked.

[0012] Furthermore, the sensing structure includes a pressure pin, a spring and a needle sleeve, the needle sleeve is fixedly arranged in the accommodating groove, the spring is fixedly connected to the accommodating groove and arranged on the needle sleeve, the pressure pin is fixedly connected to the spring, and the pressure pin and the needle sleeve are arranged correspondingly. When the conductive block presses the pressure pin downward, the spring is compressed to make the pressure pin enter the needle sleeve. If the wire and the sensing structure form a complete circuit, the chip sends a signal, and the inner core component is correctly installed and locked.

[0013] Another object of the present invention is to provide a method for using a core-replacement type aluminum liquid crystal trough.

[0014] A method for using a core-replacement type aluminum liquid crystal trough, which is applied to the core-replacement type aluminum liquid crystal trough as described above, comprises the following steps:

[0015] The heating plate inner core is installed in the receiving tank, and the heating plate inner core is used to preheat and dry the flow tank body;

[0016] Remove the inner core of the heating plate, replace the inner core of the crystallizer, start the circulating water cooling, pour the molten aluminum liquid into the launder body, and quickly cool the aluminum liquid through the circulating water to promote crystallization;

[0017] The cooled and crystallized aluminum liquid is put into the mold to complete the final cooling and solidification forming.

[0018] Furthermore, in the process of preheating and drying the flow channel body using the inner core of the heating plate, the flow channel body is heated by the resistance wire to reach the required temperature and completely dry the flow channel body.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: a receiving groove is provided at the bottom of the flow trough body for disassembly and installation of the inner core assembly; by providing a replaceable inner core assembly, the inner core can be selected according to different needs, and the inner core assembly includes a crystallizer inner core and a heating plate inner core. When the flow trough body needs to be preheated and dried, the heating plate inner core can be installed, thereby avoiding the safety risks that may be caused by using open flames or electric heating, so that the flow trough body can be preheated before casting production, ensuring that the flow trough has reached a suitable temperature when the aluminum liquid is poured in, which is conducive to the uniform flow and crystallization of the aluminum liquid; when the aluminum liquid on the flow trough body needs to be crystallized, the crystallizer inner core is replaced, and rapid cooling is achieved through the built-in circulating water system to promote the crystallization process of the aluminum liquid. The core-replaceable aluminum liquid crystallization flow trough of the present invention adjusts the working mode of the flow trough by replacing different inner cores to meet different actual needs, and at the same time makes the maintenance and upgrading of the flow trough body simpler, effectively ensuring that each area inside the flow trough is dried evenly and thoroughly, and ensuring that the subsequent cooling and crystallization process proceeds smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention may be further understood from the following description in conjunction with the accompanying drawings, in which the components are not necessarily drawn to scale, but emphasis is placed on illustrating the principles of the embodiments, and in different views, the same reference numerals designate corresponding parts.

[0021] Figure 1 This is a schematic diagram of the use state of the core-replacement type aluminum liquid crystal flow trough of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the core-replacement type aluminum liquid crystal flow trough of the present invention.

[0023] Figure 3 is a side cross-sectional view of the flow channel body of the present invention;

[0024] Figure 4 is a schematic diagram of the internal structure of the crystallizer core according to Example 1 of the present invention;

[0025] Figure 5 is a side cross-sectional view of the inner core of the heating plate of the present invention;

[0026] Figure 6 It is a schematic diagram of the combined structure of the flow channel body, the inner core component and the mechanical locking device of the present invention;

[0027] Figure 7 is a schematic diagram of the internal structure of the crystallizer core according to Example 2 of the present invention;

[0028] Figure 8 is a side cross-sectional view of the inner core of the crystallizer according to Example 2 of the present invention;

[0029] Fig. 9 It is a flow chart of the method for using the core-replacement type aluminum liquid crystal launder of the present invention;

[0030] Fig.10 It is a schematic diagram of the internal structure of the crystallizer core described in Comparative Example 3 of the present invention.

[0031] Description of reference numerals:

[0032] 1. Flow channel body; 11. Liquid flow channel; 12. Receiving channel; 13. Card slot; 2. Inner core assembly; 21. Inner core of crystallizer; 211. Cooling water channel; 2111. Inlet water channel; 2112. Transition water channel; 2113. Outlet water channel; 22. Inner core of heating plate; 221. Resistance wire; 23. Card block; 24. Handle; 3. Mechanical locking device; 31. Conductive block; 32. Chip; 33. Induction group; 331. Induction structure; 3311. Press needle; 3312. Spring; 3313. Needle sleeve; 34. Wire; 4. Mold. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the adsorption scope of the present invention.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0037] Example 1

[0038] like Figure 1-Figure 3 As shown, a core-replaceable aluminum liquid crystallization flow channel in one embodiment of the present invention includes a flow channel body 1 and an inner core component 2. A liquid flow channel 11 is arranged on the top of the flow channel body 1, and a receiving groove 12 is arranged on the bottom of the flow channel body 1; the inner core component 2 is arranged in the receiving groove 12 and is detachably installed with the receiving groove 12, and the inner core can be replaced according to different needs. The inner core component 2 includes a crystallizer inner core 21 and a heating plate inner core 22. The crystallizer inner core 21 and the heating plate inner core 22 are alternately connected with the receiving groove 12 respectively. By replacing different inner cores, the working mode of the flow channel can be adjusted according to actual needs. By setting the flow channel body 1, a flow channel 11 is provided on the top of the flow channel body 1 for the circulation of aluminum liquid; a receiving groove 12 is provided at the bottom of the flow channel body 1 for detachable installation with the inner core component 2; by setting the inner core component 2, the inner core can be replaced according to different needs. When the flow channel body 1 needs to be preheated and dried, the heating plate inner core 22 can be installed to avoid the safety risks caused by the use of open flames or electric heating, so that the flow channel body 1 can be preheated before casting production to ensure that the flow channel has reached a suitable temperature when the aluminum liquid is poured in, which is conducive to the uniform flow and crystallization of the aluminum liquid; when the aluminum liquid on the flow channel body 1 needs to be crystallized, the crystallizer inner core 21 is replaced, and rapid cooling is achieved through the built-in circulating water system to promote the crystallization process of the aluminum liquid. In this embodiment, the flow channel body 1 is made of high temperature resistant material to ensure that it does not crack or deform under the simultaneous or alternating effects of high and low temperatures. The upper surface of the flow channel 11 is coated with a release agent, which can be selected from aluminum oxide, silicon nitride, graphite, and zirconium oxide; the receiving groove 12 is adapted to the shape of the inner core component 2. Of course, the shapes of the flow channel 11 and the receiving groove 12 can be designed differently according to different needs, and are not specifically limited here.

[0039] See also Figure 4As a preferred embodiment of the present invention, it may also have the following additional technical features: a cooling water channel 211 is arranged in the inner core 21 of the crystallizer, and the cooling water channel 211 is arranged in a curved manner, which helps to increase the length of the water channel, thereby prolonging the residence time of the cooling water in the inner core 21 of the crystallizer and improving the heat exchange efficiency. The curved arrangement can also cause the cooling water to form eddies and turbulence during the flow process, thereby enhancing the cooling effect on the inner core 21 of the crystallizer; the cooling water channel 211 includes an inlet water channel 2111, a transition water channel 2112 and an outlet water channel 2113, and the inlet water channel 2111, the transition water channel 2112 and the outlet water channel 2113 are connected in sequence, and the outlet water channel 2113 is arranged in the aluminum liquid. First, it enters the lower side of the liquid flow trough 11. The distance from the outlet waterway 2113 to the liquid flow trough 11 is smaller than the distance from the inlet waterway 2111 to the liquid flow trough 11, which helps to quickly take away the heat released by the aluminum liquid and promote the cooling and crystallization of the aluminum liquid. The cross-sectional area of ​​the inlet waterway 2111 is 3-15 times the cross-sectional area of ​​the outlet waterway 2113, which is used to increase the cold water storage capacity, prevent the crystallizer from overheating, and accelerate the discharge of hot water. The inlet waterway 2111 is the inlet of the cooling water, and its cross-sectional area is large, which can accommodate more cooling water and play a buffering role. The outlet waterway 2113 is the outlet of the cooling water, and its cross-sectional area is small, which can accelerate the flow rate of the cooling water and improve the cooling efficiency. In this embodiment, the cooling water channel 211 is arranged in an S-shaped spiral, and the cross-sectional area of ​​the water inlet water channel 2111 is 9 times the cross-sectional area of ​​the water outlet water channel 2113. There is more water stored at the water inlet, which plays a role in buffering and preventing the overall overheating of the crystallizer. The flow rate of the water channel in contact with the flow channel body 1 is large, achieving the effect of cooling and crystallizing the aluminum liquid. In this embodiment, the material of the crystallizer core 21 is copper alloy, rust-proof steel or cast iron to ensure excellent thermal conductivity and corrosion resistance.

[0040] See also Figure 5 As a preferred embodiment of the present invention, it may also have the following additional technical features: a resistance wire 221 is arranged in the heating plate core 22 for drying and preheating the flow channel body 1, and the outside of the resistance wire 221 is wrapped with a refractory insulating material to provide uniform and efficient heating performance while preventing the resistance wire 221 from short-circuiting. The setting of the resistance wire 221 needs to ensure that the temperature distribution of the entire heating plate core 22 is uniform in the clamped state.

[0041] As a preferred embodiment of the present invention, it may also have the following additional technical features: a temperature sensor is provided on the inner core 22 of the heating plate to detect and display the real-time temperature, ensuring that the operator can understand the current heating status at any time; the temperature sensor is electrically connected to the resistance wire 221, and is used to feedback the heating power of the resistance wire 221, control the temperature and heating process, and make a high temperature warning; when the temperature is lower than the set value, the resistance wire 221 will increase the heating power to increase the temperature; when the temperature is higher than the set value, the resistance wire 221 will reduce the heating power or stop heating to prevent overheating. In this embodiment, the temperature sensor is electrically connected to the heating system, can receive the signal of the temperature sensor, and automatically adjust the heating power of the resistance wire 221 according to the preset heating program and temperature curve to achieve precise temperature control.

[0042] As a preferred embodiment of the present invention, it may also have the following additional technical features: blocks 23 are respectively provided on both sides of the crystallizer inner core 21 and the heating plate inner core 22, and a slot 13 is provided in the receiving groove 12. The blocks 23 are engaged with the slot 13 to ensure the stable position of the inner core in the flow channel body 1, and also prevent loosening caused by vibration or temperature change. In this embodiment, a handle 24 is provided on the side of the crystallizer inner core 21 and the heating plate inner core 22 away from the flow channel 11, so as to facilitate the removal of the crystallizer inner core 21 and the heating plate inner core 22 for replacement, and a plurality of locking screw holes are provided in the direction of the slot 13 away from the flow channel 11, and bolts are used to enter the locking screw holes to further lock and limit the crystallizer inner core 21 or the heating plate inner core 22.

[0043] As a preferred embodiment of the present invention, it may also have the following additional technical features: a plurality of crystallizer cores 21 and heating plate cores 22 are respectively provided. By providing a plurality of cores, quick replacement and alternating use can be achieved, thereby improving production efficiency. When a core needs to be replaced due to wear, aging or damage, a spare core can be immediately replaced to ensure the continuity and stability of the production process. Each crystallizer core 21 and each heating plate core 22 is respectively provided with an electronic sensor for identifying the category of the core assembly 2. By reading the data in the sensor, the operator can quickly understand information such as the type, specification and status of the core currently in use.

[0044] See also Figure 6As a preferred embodiment of the present invention, it may also have the following additional technical features: including a mechanical locking device 3, which is used to detect whether each inner core is correctly installed and locked, ensuring that the crystallization function of the crystallizer inner core 21 or the heating function of the heating plate inner core 22 can be activated only after the inner core is fully clamped, or according to different needs, activating and triggering the high-pressure water inlet mode or the extremely fast drying mode. The mechanical locking device 3 includes a conductive block 31, a chip 32 and a sensing group 33. The sensing group 33 is composed of two identical sensing structures 331. The two sensing structures 331 are electrically connected. The sensing structure 331 is arranged in the receiving groove 12. The conductive block 31 is arranged on the inner core component 2 and corresponds to the position of the sensing structure 331. The chip 32 is arranged on the outer surface of the inner core component 2. The conductive block 31 and the chip 32 are connected through a wire 34. When the conductive block 31 presses the sensing structure 331 downward, if the wire 34 and the sensing structure 331 form a complete circuit, the chip 32 sends a signal, and the inner core is correctly installed and locked. Once the chip 32 confirms that the inner core state is correct, it can send a signal to the remote control system to activate the corresponding function. In this embodiment, there is one sensing group 33; in addition, in other embodiments, the specific number and position of the sensing group 33 can be designed differently according to different needs.

[0045] As a preferred embodiment of the present invention, it may also have the following additional technical features: the sensing structure 331 includes a pressure needle 3311, a spring 3312 and a needle sleeve 3313, the needle sleeve 3313 is fixedly arranged in the receiving groove 12, the spring 3312 is fixedly connected to the receiving groove 12 and is arranged on the needle sleeve 3313, the pressure needle 3311 is fixedly connected to the spring 3312, when the pressure needle 3311 is pressed down, the spring 3312 will be compressed and store energy; when the conductive block 31 is moved away, the spring 3312 will push The dynamic pressure needle 3311 returns to its initial position; the pressure needle 3311 and the needle sleeve 3313 are arranged correspondingly, ensuring that the pressure needle 3311 can smoothly enter the needle sleeve 3313 when subjected to downward pressure. Adjacent needle sleeves 3313 are electrically connected. When the conductive block 31 presses the pressure needle 3311 downward, the compression spring 3312 allows the pressure needle 3311 to enter the needle sleeve 3313. If the wire 34 and the sensing structure 331 form a complete circuit, the chip 32 sends a signal, and the inner core is correctly installed and locked.

[0046] See also Fig. 9 The present embodiment also provides a method for using a core-replacement type aluminum liquid crystal trough, which is applied to the core-replacement type aluminum liquid crystal trough as described above, and includes the following steps:

[0047] S1. Install the heating plate inner core 22 in the receiving tank 12, and use the heating plate inner core 22 to preheat and dry the flow channel body 1. During the preheating process, the heating should be uniformly heated to avoid local overheating that may damage the flow channel body 1. During the preheating process, the heating plate inner core 22 can also dry the flow channel body 1. The water and impurities on the surface of the flow channel body 1 are removed by heating, creating favorable conditions for the subsequent aluminum liquid crystallization process.

[0048] S2. Remove the heating plate core 22, replace the crystallizer core 21, start circulating water cooling, pour the molten aluminum liquid into the flow channel body 1, and quickly cool the aluminum liquid through circulating water to promote crystallization; the temperature of the cooling water is set differently according to different needs.

[0049] S3, the cooled and crystallized aluminum liquid enters the mold 4 to complete the final cooling and solidification forming.

[0050] As a preferred embodiment of the present invention, it may also have the following additional technical features: In step S1, during the process of preheating and drying the flow channel body 1 using the heating plate inner core 22, the flow channel body 1 is heated by the resistance wire 221 to reach the required temperature and completely dry the flow channel body 1 to prevent the aluminum liquid from contacting with water vapor and causing quality and safety problems. When current passes through the resistance wire 221, due to the existence of resistance, electrical energy is converted into thermal energy, thereby generating heat. This heat is transferred to the flow channel body 1 through the heat conductive material of the heating plate inner core 22, causing it to gradually heat up.

[0051] The replaceable core type aluminum liquid crystallization flow trough of the present embodiment has a reasonable structural design and is easy to use. This structure can also be used for other equipment with similar usage requirements. In the present embodiment, the replaceable core type aluminum liquid crystal flow trough adjusts the working mode of the flow trough by replacing different inner cores to meet different actual needs. At the same time, it makes the maintenance and upgrading of the flow trough body 1 simpler, effectively ensuring that each area inside the flow trough 11 is dried evenly and thoroughly, ensuring that the subsequent cooling and crystallization process proceeds smoothly.

[0052] Example 2

[0053] The present application also provides Example 2, such as Figure 7-Figure 8 As shown, as a modified structure of Example 1, the difference between Example 2 and Example 1 is only the shape of the cooling water channel 211, which is as follows: the cooling water channel 211 is set in a U shape, and the cross-sectional area of ​​the water inlet water channel 2111 is 4 times the cross-sectional area of ​​the water outlet water channel 2113. There is more water stored at the water inlet, which plays a role in caching and preventing the overall overheating of the crystallizer. The flow rate of the water channel in contact with the flow channel body 1 is large, achieving the effect of cooling and crystallizing the aluminum liquid. The structure of the U-shaped cooling water channel 211 is relatively simple, without complex bends and connections, so it is easier to clean and maintain.

[0054] See also Fig. 9 The present embodiment also provides a method for using a core-replacement type aluminum liquid crystal trough, which is applied to the core-replacement type aluminum liquid crystal trough as described above, and includes the following steps:

[0055] The heating plate inner core 22 is installed in the receiving groove 12, and the flow channel body 1 is preheated and dried by the heating plate inner core 22; during the preheating process, the heating should be uniformly heated to avoid local overheating and damage to the flow channel body 1. During the preheating process, the heating plate inner core 22 can also dry the flow channel body 1. The moisture and impurities on the surface of the flow channel body 1 are removed by heating, creating favorable conditions for the subsequent aluminum liquid crystallization process.

[0056] The heating plate core 22 is removed, the crystallizer core 21 is replaced, the circulating water cooling is turned on, the molten aluminum liquid is poured into the flow channel body 1, and the aluminum liquid is quickly cooled by the circulating water to promote crystallization; the temperature of the cooling water is set differently according to different needs.

[0057] The cooled and crystallized aluminum liquid enters the mold 4 to complete the final cooling and solidification forming.

[0058] As a preferred embodiment of the present invention, it may also have the following additional technical features: in the process of preheating and drying the launder body 1 using the heating plate inner core 22, heating by the resistance wire 221 ensures that the launder reaches the required temperature and the launder body 1 is completely dried, so as to prevent the aluminum liquid from contacting with water vapor and causing quality and safety problems. When current passes through the resistance wire 221, due to the existence of resistance, electrical energy is converted into thermal energy, thereby generating heat. This heat is transferred to the launder body 1 through the heat-conducting material of the heating plate inner core 22, causing it to gradually heat up.

[0059] Comparative Example 1

[0060] A conventional crystallization trough is used, and a fixed cooling water circulation system is set inside, which cannot be removed. Open flame is used for drying before use. At the same time, the shape, cooling water rate, and the dimensions and specifications of other parts are the same as those in Example 1.

[0061] Comparative Example 2

[0062] A fixed heating resistance wire is used for preheating and drying, and cooling water cannot be switched for pre-crystallization, and cooling is completely performed in the mold 4. At the same time, the shape, the size specifications of other parts and the resistance wire power are the same as those in Example 1.

[0063] Comparative Example 3

[0064] See also Fig.10The cooling water channel 211 is of equal cross-section, and the cross-sections of the inlet water channel 2111, the transition water channel 2112 and the outlet water channel 2113 are equal. At the same time, the shape, cooling water inlet rate, and the sizes and specifications of other parts are the same as those in Example 1.

[0065] The effects of Example 1 and Comparative Examples 1-3 are compared, including the launder drying time and the solidification quality of the ingot. The launder drying time refers to the time required for drying from 90% to 10% humidity. The solidification quality of the ingot includes the average diameter of the grains at the center of the circular surface at an equal distance from the bottom surface of the inner cavity of the mold 4 and the depth of the top layer shrinkage tail. The comparison is recorded in the following table:

[0066] Table 1 The use effect of Example 1 and Comparative Examples 1-3

[0067]

[0068]

[0069] Analysis of the above data shows that Example 1 uses open flame baking, which greatly increases the time required and has poor safety and uniformity; Example 2 has no cooling (pre-) crystallization process in the launder, the temperature of the aluminum liquid entering the mold is high, the grains are coarse, the tail shrinkage is large, and the quality is poor; the cooling water channel 211 of Example 3 has a constant cross-section, and the flow rate cannot be increased, resulting in poor cooling and (pre-) crystallization effects, coarse grains, and large tail shrinkage.

[0070] In the description of the above embodiments, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, "several" and "multiple" mean more than one, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" and "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction between the combinations of these technical features, they should be considered to be within the scope recorded in this specification.

[0072] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A core-replacement type aluminum liquid crystal launder, characterized in that: include: A flow channel body, wherein a liquid flow channel is arranged on the top of the flow channel body and a receiving channel is arranged on the bottom of the flow channel body; The inner core component is arranged in the receiving groove and is detachably connected to the receiving groove. The inner core component includes a crystallizer inner core and a heating plate inner core. The crystallizer inner core and the heating plate inner core are respectively and alternately connected to the receiving groove.

2. The core-replacement type aluminum liquid crystal launder according to claim 1, characterized in that: A cooling water channel is arranged in the inner core of the crystallizer, and the cooling water channel is arranged in a curved manner. The cooling water channel comprises an inlet water channel, a transition water channel and an outlet water channel, and the inlet water channel, the transition water channel and the outlet water channel are connected in sequence. The outlet water channel is arranged below the side where the aluminum liquid first enters the flow trough, and the distance from the outlet water channel to the flow trough is smaller than the distance from the inlet water channel to the flow trough. The cross-sectional area of ​​the inlet water channel is 3-15 times the cross-sectional area of ​​the outlet water channel.

3. The core-replacement type aluminum liquid crystal launder according to claim 1, characterized in that: A resistance wire is arranged in the inner core of the heating plate, and the outer part of the resistance wire is wrapped with a fire-resistant insulating material.

4. The core-replacement type aluminum liquid crystal flow trough according to claim 3, characterized in that: A temperature sensor is arranged on the inner core of the heating plate for detecting and displaying the real-time temperature, and the temperature sensor is electrically connected to the resistance wire.

5. The core-replacement type aluminum liquid crystal flow trough according to claim 1, characterized in that: Blocks are respectively arranged on both sides of the inner core of the crystallizer and the inner core of the heating plate, and a card slot is arranged in the accommodating groove, and the block is engaged with the card slot.

6. The core-replacement type aluminum liquid crystal flow trough according to claim 1, characterized in that: A plurality of the crystallizer inner cores and the heating plate inner cores are provided respectively, and each crystallizer inner core and each heating plate inner core is provided with an electronic sensor for identifying the type of the inner core component.

7. The core-replacement type aluminum liquid crystal launder according to claim 1, characterized in that: It comprises a mechanical locking device, which comprises a conductive block, a chip and a sensing group. The sensing group consists of two identical sensing structures, which are electrically connected. The sensing structure is arranged in the accommodating groove. The conductive block is arranged on the inner core component and corresponds to the position of the sensing structure. The chip is arranged on the outer surface of the inner core component. The conductive block is connected to the chip through a wire. When the conductive block presses down the sensing structure, if the wire and the sensing structure form a complete circuit, the chip sends a signal, and the inner core is correctly installed and locked.

8. The core-replacement type aluminum liquid crystal flow trough according to claim 7, characterized in that: The sensing structure includes a pressure pin, a spring and a needle sleeve. The needle sleeve is fixedly arranged in the accommodating groove. The spring is fixedly connected to the accommodating groove and arranged on the needle sleeve. The pressure pin is fixedly connected to the spring. The pressure pin and the needle sleeve are arranged correspondingly. When the conductive block presses the pressure pin downward, the spring is compressed to make the pressure pin enter the needle sleeve. If the wire and the sensing structure form a complete circuit, the chip sends a signal, and the inner core is correctly installed and locked.

9. A method for using a core-replacement type aluminum liquid crystal flow trough, applied to the core-replacement type aluminum liquid crystal flow trough as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: The heating plate inner core is installed in the receiving tank, and the heating plate inner core is used to preheat and dry the flow tank body; Remove the inner core of the heating plate, replace the inner core of the crystallizer, start the circulating water cooling, pour the molten aluminum liquid into the launder body, and quickly cool the aluminum liquid through the circulating water to promote crystallization; The cooled and crystallized aluminum liquid is put into the mold to complete the final cooling and solidification forming.

10. The method for using the core-replacement type aluminum liquid crystal launder according to claim 9, characterized in that: In the process of preheating and drying the flow channel body by using the heating plate inner core, the flow channel body is heated by the resistance wire to reach the required temperature and completely dry the flow channel body.

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