Processing method of composite cooler

Abstract

The invention discloses a machining method of a composite cooler, a body of the composite cooler is formed by compositing a metal plate and a steel plate, and the machining method comprises the steps that the metal plate is placed on a machining platform, and a lower groove body is machined in the metal plate so that a preset number of water channels can be formed in the metal plate; the lower groove body is filled with filler, and the filling height is flush with the notch; the filler at least comprises a mold core formed by pouring a mixture of an adhesive, a curing agent and silica sand into the lower groove body and curing the mixture; wherein the adhesive is water glass or resin. The machining method for machining the composite cooler has the advantages of being high in efficiency and low in cost.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchange equipment, and in particular to a processing method of a composite cooler. Background Art

[0002] As one of the most important components in metallurgical equipment, the cooler is mainly used to prevent overheating of metallurgical equipment and protect the shell of metallurgical equipment to maintain the normal operation of metallurgical equipment. In the prior art, coolers usually include pure copper coolers and copper-steel composite coolers. Among them, the processing process of the copper-steel composite cooler is often to first composite the overall plate to form a copper-steel composite part, and then machine the cooling water channel trough, and then obtain the cooling water channel by welding the water channel cover on the water channel, and finally form a composite cooler. However, such a process is not only complicated, but also needs to consider problems such as water channel deformation caused by welding the water channel cover, which makes the entire processing process cumbersome and inefficient. Summary of the invention

[0003] In view of the technical problems existing in the prior art, the present application proposes a method for processing a composite cooler. The method for processing the composite cooler has the advantages of simple process and high efficiency.

[0004] The present application embodiment provides a processing method for a composite cooler, wherein the body of the composite cooler is composited by a metal plate and a steel plate, and the processing method comprises: placing the metal plate on a processing platform, and processing a lower groove body on the metal plate so as to form a preset number of water channels on the metal plate; filling the lower groove body with a filler, the filling height being flush with the notch; the filler at least comprises a core formed by pouring a mixture of an adhesive, a curing agent and silica sand into the lower groove body and curing the mixture; wherein the adhesive is water glass or resin; and covering the metal plate with a steel plate. The metal plate and the steel plate are explosively welded together by explosive composite welding on one side of the plate where the lower groove body is opened, so as to obtain a composite plate for making the main body and a water channel located in the composite plate, wherein the water channel includes the lower groove body and a portion of the steel plate located on the lower groove body; an inlet hole and an outlet hole are opened at a preset position of the composite plate, and the inlet hole and the outlet hole are respectively connected to the two ends of the water channel; the composite plate is heated so that the core collapses into core bulk; the filling in the current water channel is discharged from the outlet hole or the inlet hole to obtain the composite cooler.

[0005] Optionally, the filler also includes a core bone, which is arranged inside the core; before pouring the mixture into the lower groove body, the processing method also includes: placing a core bone in the lower groove body, the core bone including a metal wire and a plurality of strength reinforcements fixed at intervals along the length direction of the metal wire; wherein, after heating the composite plate, the filler in the current waterway includes core bulk and core bone.

[0006] Optionally, the filler also includes a lead plate; filling the filler in the lower groove body further includes: after forming the core, covering the core with a lead plate of a preset thickness, the width of the lead plate is the same as the width of the lower groove body, and the upper surface of the lead plate is flush with the notch of the lower groove body; wherein, after heating the composite plate, the filler in the current waterway includes the core bulk and the melted lead plate.

[0007] Optionally, the filler also includes a lead plate and a core bone; the core bone is arranged inside the core; before pouring the mixture into the lower groove body, the processing method also includes: placing the core bone in the lower groove body, the core bone including a metal wire and a plurality of strength reinforcements fixed at intervals along the length direction of the metal wire; and after forming the core, before the steel plate is covered on the metal plate, the processing method also includes: covering the core with a lead plate of a preset thickness, the width of the lead plate is the same as the width of the lower groove body, and the upper surface of the lead plate is flush with the notch of the lower groove body; wherein, after heating the composite plate, the filler in the current waterway includes the core bulk, the melted lead plate and the core bone.

[0008] Optionally, the thickness of the lead plate is 3-10 mm.

[0009] Optionally, the metal plate is a copper plate.

[0010] Optionally, the metal plate is a copper-steel composite plate, the metal plate includes a steel layer and a copper layer, and the lower groove body is opened through the steel layer and the copper layer of a preset thickness.

[0011] Optionally, a copper-steel explosion composite layer is provided between the copper-steel composite plates.

[0012] Optionally, when the adhesive is water glass, the water glass accounts for 2.5-3.5% of the total mixture, and the curing agent accounts for 0.5-0.8% of the total mixture; when the adhesive is resin, the resin accounts for 0.45-1.25% of the total mixture, and the curing agent accounts for 0.14-0.42% of the total mixture.

[0013] Optionally, the content of SiO2 in the silica sand is greater than 96%, the particle size of the silica sand is 40-70 meshes, and the content of fine powder less than 200 meshes in the silica sand is less than 1%.

[0014] Optionally, heating the composite plate further comprises: heating the composite plate in a heating furnace at a temperature of 550° C. to 750° C. for 0.5 h to 1 h.

[0015] Optionally, the processing accuracy of the composite surface of the copper layer and the steel layer is not less than 6.3.

[0016] Optionally, the strength reinforcement member is a sheet-like structure, a filament-like structure, a rib-like structure, or a combination of two or more thereof.

[0017] Optionally, when the strength reinforcement member is a sheet-like structure, the metal wire is passed through the central position of the sheet-like structure; and / or the metal wire and the long sides of the sheet-like structure are fixed, and multiple sheet-like structures are distributed along the circumference of the metal wire; when the strength reinforcement member is a wire-like structure or a rib-like structure, multiple strength reinforcement members are distributed and fixed along the circumference of the metal wire.

[0018] Optionally, when the strength reinforcement member is a sheet-like structure and the metal wire is inserted into the central position of the sheet-like structure, the maximum single-side length of the strength reinforcement member does not exceed the depth or width of the lower groove body; when the strength reinforcement member is a sheet-like structure and the metal wire and the long sides of the sheet-like structure are fixed, and multiple sheet-like structures are distributed along the circumference of the metal wire, the radial diameters of multiple strength reinforcement members along the radial direction of the metal wire do not exceed the depth or width of the lower groove body; when the strength reinforcement member is a wire-like structure or a rib-like structure, the radial diameters of multiple strength reinforcement members along the radial direction of the metal wire do not exceed the depth or width of the lower groove body.

[0019] Optionally, the metal wire is iron wire.

[0020] Optionally, the diameter of the metal wire is 3-10 mm, and the distance between adjacent strength reinforcements along the length direction of the metal wire is 50-80 mm.

[0021] Optionally, the cross-section of the lower groove body is rectangular or dovetail-shaped.

[0022] Optionally, it further includes: welding the water inlet and outlet pipes at the position of the introduction hole, and welding the water outlet pipe at the position of the outlet hole, so that the water inlet pipe and the water outlet pipe are formed on the composite cooler.

[0023] In the composite cooler processing method proposed in the embodiment of the present application, it is necessary to process the water channel first and then perform the explosive composite of the metal plate, thereby eliminating the welding of the water channel cover and the corresponding heat treatment and testing processes due to welding deformation and stress relief, thereby improving production efficiency. Moreover, in the present application, a mixture of water glass sand or resin sand is used to fill the lower groove body. Since the mixture has not yet solidified during filling, the flowing mixture can better fit the various surfaces of the lower groove body than the processed solid filler, so that the core formed after solidification can highly fit the shape of the lower groove body, so that when the metal plate and the steel plate are explosively welded together, the support coverage rate of the core on the various surfaces of the lower groove body can be improved, reducing the occurrence of deformation, and the stress concentration of the composite cooler formed in this way will be improved, and the structural stability of the composite cooler will also be more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Below, the preferred embodiments of the present application will be further described in detail with reference to the accompanying drawings, wherein:

[0025] Figure 1 It is a flowchart of a processing method of a composite cooler proposed in an embodiment of the present application;

[0026] Figure 2 is a schematic diagram of the three-dimensional structure of the core bone in the embodiment of the present application;

[0027] Figure 3 is a schematic diagram of the three-dimensional structure of a composite cooler according to an embodiment of the present application;

[0028] Figure 4 yes Figure 3 A view of the structure shown;

[0029] Figure 5 yes Figure 4 The structure shown is a cross-sectional view along BB;

[0030] Figure 6 yes Figure 4 The structure shown is a cross-sectional view along CC;

[0031] Figure 7 is a perspective structural diagram of a steel plate clad on a copper plate using the processing method of an embodiment of the present application;

[0032] Figure 8 yes Figure 7 The structure shown is a cross-sectional view along FF;

[0033] Fig. 9 yes Figure 8 A local enlarged view of the structure at M;

[0034] Fig.10is a schematic diagram of the three-dimensional structure of another composite cooler according to an embodiment of the present application;

[0035] Fig.11 yes Fig.10 N-direction view of the structure shown;

[0036] Fig.12 yes Fig.10 The structure shown is a cross-sectional view along DD;

[0037] Fig.13 yes Fig.10 The structure shown is a cross-sectional view along EE;

[0038] Fig.14 It is a schematic structural diagram of a bone core in another embodiment of the present application.

[0039] Description of reference numerals:

[0040] 600, core bone; 601, metal wire; 602, strength reinforcement; 200, composite cooler; 201, copper plate; 202, lower groove body; 203, steel plate; 701, core; 702, lead plate; 204, waterway; 2031, part of steel plate; 210, water inlet; 220, water outlet; 801, copper layer; 802, first steel layer; 803, second steel layer. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] In the following detailed description, reference may be made to the various specification drawings that are part of the present application and are used to illustrate specific embodiments of the present application. In the accompanying drawings, similar reference numerals describe substantially similar components in different figures. The various specific embodiments of the present application are described below in sufficient detail so that a person of ordinary skill in the art with relevant knowledge and skills in the art can implement the technical solutions of the present application. It should be understood that other embodiments may also be used or structural, logical or electrical changes may be made to the embodiments of the present application.

[0043] Figure 1 The main body of the composite cooler of the embodiment of the present application is composed of a metal plate and a steel plate. Figure 1As shown, the processing method of the composite cooler proposed in the embodiment of the present application includes the following steps:

[0044] S101: placing a metal plate on a processing platform, and processing a groove body on the metal plate to form a preset number of water channels on the metal plate;

[0045] S102: filling the lower groove body with a filler, the filling height being level with the notch; the filler at least comprises a core formed by pouring a mixture of an adhesive, a curing agent and silica sand into the lower groove body and curing the mixture; wherein the adhesive is water glass or resin;

[0046] S103: Covering the steel plate on one side of the metal plate where the lower groove body is formed, and explosively welding the metal plate and the steel plate together by explosive composite welding to obtain a composite plate for manufacturing a body and a waterway in the composite plate, wherein the waterway includes the lower groove body and a portion of the steel plate located on the lower groove body;

[0047] S104: opening an inlet hole and an outlet hole at a preset position of the composite plate, wherein the inlet hole and the outlet hole are connected to two ends of the water channel respectively;

[0048] S105: heating the composite plate so that the core collapses into bulk core material;

[0049] S106: The filling material in the current water channel is led out from the outlet hole or the inlet hole to obtain a composite cooler.

[0050] In an embodiment of the present application, the body of the composite cooler is composed of a metal plate and a steel plate. In some embodiments of the present application, the metal plate is optionally a copper plate or a copper-steel composite plate or a steel plate, etc. In the processing method of the composite cooler proposed in the embodiment of the present application, it is necessary to first process a lower groove body on the metal plate, and the lower groove body is one of the components of the water channel. In the composite cold zone device, the water channel is composed of a lower groove body and a cover on the lower groove body. In the embodiment of the present application, the cover refers to a part of the steel plate composited on the metal plate located on the lower groove body. Since a part of the steel plate covers the upper part of the lower groove body, when the steel plate and the metal plate are explosively composited, the steel plate and the metal plate except the surface of the lower groove body are explosively composited, so that the lower groove body can be sealed, so that a water channel can be formed in the composite metal plate and the steel plate, and then a cooling water outlet hole and a cooling water inlet hole connected to the water channel are opened at a preset position on the composite plate, and a composite cooler can be obtained. In some embodiments of the present application, optionally, the processing method further includes: welding the inlet and outlet water pipes at the position of the introduction hole, and welding the outlet water pipe at the position of the outlet hole, so that the composite cooler forms an inlet pipe and an outlet water pipe. In some embodiments of the present application, the inlet and outlet water pipes can also be welded on the outlet hole and the introduction hole of the composite cooler of the embodiment of the present application, so as to form a composite cooler with an inlet and outlet water pipes.

[0051] In addition, in the processing method of the composite cooler of the present application, it is necessary to fill the processed lower groove body with a filler to support the shape of the waterway in the subsequent explosive composite and prevent the waterway from deforming during the explosive composite process. In an embodiment of the present application, optionally, the filler includes at least a core formed by curing the injected adhesive, curing agent and silica sand. After the explosive composite is completed, the core can be collapsed into a core bulk material by heating the composite plate, and then the current filler can be guided out from the outlet hole or the inlet hole to obtain the composite cooler. In some embodiments of the present application, optionally, the filler is only the core, then the core collapses after the composite plate is heated, and the collapsed core can be guided out from the outlet hole or the inlet hole, and the current filler is the collapsed core bulk material.

[0052] In the composite cooler processing method proposed in the embodiment of the present application, it is necessary to process the water channel first and then perform the explosive composite of the metal plate, thereby eliminating the welding of the water channel cover and the corresponding heat treatment and testing processes due to welding deformation and stress relief, thereby improving production efficiency. Moreover, in the present application, a mixture of water glass sand or resin sand is used to fill the lower groove body. Since the mixture has not yet solidified during filling, the flowing mixture can better fit the various surfaces of the lower groove body than the processed solid filler, so that the core formed after solidification can highly fit the shape of the lower groove body, so that when the metal plate and the steel plate are explosively welded together, the support coverage rate of the core on the various surfaces of the lower groove body can be improved, reducing the occurrence of deformation, and the stress concentration of the composite cooler formed in this way will be improved, and the structural stability of the composite cooler will also be more durable.

[0053] In some embodiments of the present application, optionally, the filler further includes a core bone, which is arranged inside the core, and before the mixture is poured into the lower groove body, the processing method further includes:

[0054] A core bone is placed in the lower groove body, wherein the core bone includes a metal wire and a plurality of strength reinforcement members fixed at intervals along the length direction of the metal wire;

[0055] When the composite plate is heated, the filler is deformed into the core and collapses, and the filler in the current water channel includes the collapsed core bulk material and core bones.

[0056] In some embodiments of the present application, the filler includes a core and a core bone formed in the core. When processing the composite cooler, before filling the core in the filler in the lower groove body, the core bone can be placed in the lower groove body, and then the mixture for forming the core is poured into the lower groove body, then a core bone is added to the solidified core, and the core bone can enhance the supporting strength of the core. Further, after heating the composite plate, the core collapses, and the collapsed core and the core bone are led out from the lead-out hole or the lead-in hole together.

[0057] In some embodiments of the present application, the strength reinforcement in the core bone is optionally a sheet structure, a filament structure, a rib structure, or a combination of two or more thereof. In this way, after the core collapses, the strength reinforcement can also be used to scrape the collapsed material out of the waterway, thereby improving the discharge efficiency of the collapsed material. Figure 2 Schematic diagram of the three-dimensional structure of the core bone in the embodiment of the present application. Figure 2 As shown, the core bone 600 includes a metal wire 601 and a strength reinforcement 602 inserted on the metal wire 601. The strength reinforcement 602 is a triangular sheet structure, and the length of the three sides of the triangular sheet structure is about 20 mm. The strength reinforcement 602 is distributed at intervals along the length direction of the metal wire 601. In some embodiments of the present application, optionally, the distance between adjacent strength reinforcements is 50-80 mm. In some embodiments of the present application, the metal wire is an iron wire. Optionally, the diameter of the metal wire is 3-10 mm.

[0058] In some embodiments of the present application, optionally, if the filler only includes a core, or the filler includes a core and a core bone, then the upper surface of the core or the core including the core bone is flush with the surface of the metal plate except the lower groove body, that is, the upper surface of the core is flush with the notch. In this way, when the steel plate is covered on the metal plate, the steel plate contacts the upper surface of the core (including the core of the core bone). In some embodiments of the present application, optionally, in order to prevent the core (including the core of the core bone) formed after the mixture is solidified from sticking sand, a water-based paint, for example, an alcohol-based quick-drying paint, can be applied to the upper surface of the core (including the core of the core bone) after solidification, and the surface needs to be dried after the paint is applied.

[0059] In some embodiments of the present application, optionally, the filler also includes a lead plate; filling the filler in the lower groove body further includes: after forming the core, covering the core with a lead plate of a preset thickness, the width of the lead plate is the same as the width of the lower groove body, and the upper surface of the lead plate is flush with the surface of the metal plate except the inner surface of the lower groove body; wherein, when the composite plate is heated, the deformation of the filler includes the collapse of the core and the melting of the lead plate; the filler in the current waterway includes the collapsed core bulk and the melted lead plate.

[0060] In an embodiment of the present application, a lead plate of a preset thickness can also be covered on the formed core, and after covering the lead plate, the upper surface of the lead plate is flush with the surface of the metal plate except the lower groove. In this way, when the steel plate is covered on the metal plate, the upper surface of the steel plate and the lead plate are in contact, so that the filler in the lower groove can support the steel plate. In this embodiment, the role of the lead plate is the same as that of the core bone in another embodiment, both of which are to enhance the supporting strength of the core. Moreover, the lead plate has a low melting point and strong fluidity, which can drive the collapsed core material to be discharged from the waterway together, thereby improving the discharge efficiency of the filler. In some embodiments of the present application, optionally, the thickness of the lead plate is 3-10mm. In this embodiment, after heating the composite plate, the deformation of the filler includes the collapse of the core and the melting of the lead plate. Afterwards, the collapsed core and the melted lead plate are led out from the lead-out hole or the lead-in hole together.

[0061] In some embodiments of the present application, optionally, the filler further includes a lead plate and a core bone; the core bone is arranged inside the core; before the mixture is poured into the lower groove body, the processing method further includes:

[0062] A core bone is placed in the lower groove body, wherein the core bone includes a metal wire and a plurality of strength reinforcement members fixed at intervals along the length direction of the metal wire;

[0063] And, after forming the core and before the steel plate is covered on the metal plate, the processing method further comprises:

[0064] A lead plate of a preset thickness is covered on the core, the width of the lead plate is the same as the width of the lower groove body, and the upper surface of the lead plate is flush with the notch of the lower groove body;

[0065] Among them, after heating the composite plate, the filling in the current waterway includes core bulk material, melted lead plate and core bone.

[0066] In some embodiments of the present application, the filler includes a core formed by curing a mixture of an adhesive, a curing agent and silica sand, a core bone arranged in the core, and a lead plate covering the upper surface of the core. The height of the upper surface of the lead plate is level with the height of the notch. After heating the composite plate, the core collapses and the lead plate melts. The current filler is the collapsed core bulk, the core bone and the melted lead. These three can then be led out from the lead-out hole or the lead-in hole to obtain a composite cooler. In this embodiment, adding a core bone and a lead plate can further improve the supporting strength of the filler.

[0067] In order to facilitate the understanding of the processing steps of the present application, the processing will be explained and illustrated in conjunction with the structure of the composite cooler.

[0068] Figure 3 It is a schematic diagram of the three-dimensional structure of a composite cooler according to an embodiment of the present application. Figure 4 yes Figure 3 A view of the structure shown. Figure 5 yes Figure 4 The structure shown is a cross-sectional view along BB. Figure 6 yes Figure 4 The structure shown is a cross-sectional view along CC. Figure 3-6 As shown, the metal plate of the composite cooler 200 of the embodiment of the present application is a copper plate 201. When processing the composite cooler 200, it is necessary to first place the copper plate 201 on the processing platform, and process the lower groove body 202 on the copper plate 201, and then fill the lower groove body 202 with fillers. If the filler is only a core formed by curing a mixture of adhesive, curing agent and silica sand. Then, after processing the lower groove body 202 and pouring the mixture of adhesive, curing agent and silica sand into the lower groove body 202, the steel plate 203 can then be covered on the side surface of the copper plate 201 where the lower groove body 202 is opened.

[0069] If the filler includes a core bone in addition to the core formed by curing the mixture of adhesive, curing agent and silica sand, the core bone needs to be placed behind the lower groove body, and then the mixture of adhesive, curing agent and silica sand is poured into the lower groove body. The mixture is cured at room temperature to form a core. The upper surface of the cured core is flush with the surface of the metal plate except the lower groove body. After that, the steel plate 203 can be covered on the side surface of the copper plate 201 where the lower groove body 202 is opened.

[0070] If the filler includes a lead plate on the core in addition to a core formed by curing a mixture of adhesive, curing agent and silica sand, then after the mixture of adhesive, curing agent and silica sand is poured into the downward groove body 202 and the mixture is cured to form a core, a lead plate needs to be placed on the core. The upper surface of the lead plate after placement should be flush with the surface of the copper plate 201 except for the lower groove body 202. After that, the steel plate 203 can be covered on the side surface of the copper plate 201 where the lower groove body 202 is opened. Figure 7 It is a perspective structural diagram of a steel plate being clad on a copper plate using the processing method of an embodiment of the present application. Figure 8 yes Figure 7 The structure shown is a cross-sectional view along FF. Fig. 9 yes Figure 8 A partial enlarged view of the structure at M. Figure 7-Figure 9 As shown, during the processing of the composite cooler, the filler includes a core 701 formed by curing a mixture of an adhesive, a curing agent and silica sand, and a lead plate 702 covering the core 701, both of which are arranged in the lower groove body 202 of the semi-finished composite cooler. The upper surface of the lead plate 702 is flush with the surface of the copper plate 201 except the lower groove body 202.

[0071] Continue to see Figure 3-Figure 6As shown, after the lower groove body 202 is filled with filler, the copper plate 201 and the steel plate 203 are explosively welded together by explosive composite welding. A composite plate for making a main body is obtained. A water channel 204 is formed in the composite plate, and the water channel 204 includes the lower groove body 202 and a portion of the steel plate 2031 located on the lower groove body. In order to allow the coolant to pass into the water channel, it is necessary to open an inlet hole and an outlet hole at a preset position of the composite plate. In some embodiments of the present application, optionally, the preset position is the side of the composite plate, and in some other embodiments of the present application, optionally, the preset position is the front and back of the composite plate. As shown in FIG. Figure 5 As shown, an inlet hole can be opened at the water inlet 210 of the lower groove body 202, and an outlet hole can be opened at the water outlet 220 of the lower groove body 202. After processing the outlet hole and the inlet hole, the composite plate can be heated to deform the filler. If the filler only has a core, the collapsed core is led out from the outlet hole or the inlet hole to obtain a composite cooler. If the filler includes a core and a core bone, then after heating, the core collapses, and the core and the core bone are led out from the outlet hole or the inlet hole together. In the above two embodiments, the collapsed material after being led out can also be recycled, thereby saving costs and realizing the reuse of industrial materials.

[0072] If the filler includes a core and a lead plate, then after heating, the core collapses and the lead plate melts, and the two are led out from the lead-out hole or the lead-in hole together. It should be explained that although the instantaneous temperature is high during explosive composite welding, since heat is not released continuously, the core formed by water glass and silica sand or resin and silica sand will not collapse during explosive composite welding, and the hardness of the core can support the lower groove body to prevent the lower groove body from deforming during explosive welding.

[0073] In some embodiments of the present application, the metal plate is optionally a copper-steel composite plate, the metal plate includes a steel layer and a copper layer, and the lower groove body is opened through the steel layer and the copper layer of a preset thickness. Optionally, there is a copper-steel explosion composite layer between the copper-steel composite plates. Fig.10 It is a schematic diagram of the three-dimensional structure of another composite cooler according to an embodiment of the present application. Fig.11 yes Fig.10 N-view of the structure shown. Fig.12 yes Fig.10 The structure shown is a cross-sectional view along DD. Fig.13 yes Fig.10 The structure shown is a cross-sectional view along EE. Figure 10-13As shown, the composite cooler includes a metal plate composed of a copper layer 801 and a first steel layer 802, on which a lower groove body 202 is opened, and the lower groove body 202 passes through the copper layer 801 and the first steel layer 802, and the second steel layer 803 covers the lower groove body 202, and the lower groove body 202 is sealed, so as to form a waterway 204 in the composite plate. In some embodiments of the present application, optionally, the copper layer and the first steel layer are composited together by explosion welding, and in other embodiments of the present application, optionally, the copper layer and the first steel layer are composited together by rolling. In some embodiments of the present application, optionally, the processing accuracy of the composite surface of the copper layer and the steel layer is not less than 6.3.

[0074] In the embodiment of the present application, the first steel layer 802 and the second steel layer 803 are composited together by explosion welding. In addition, by opening the lower groove body in the copper-steel composite plate, the cross-sectional area of ​​the water channel can be increased, the flow cross section of the cooling water can be increased, and the cooling effect of the composite cooler can be improved.

[0075] In some embodiments, the adhesive may be water glass or resin. When different adhesives are used, the proportion of the curing agent in the total amount of the mixture will be adjusted accordingly, as illustrated in the following Table 1.

[0076] Table 1

[0077]

[0078] It can be seen from the above table that in some embodiments of the present application, optionally, when the adhesive is water glass, the water glass accounts for 2.5-3.5% of the total mixture, and the curing agent accounts for 0.5-0.8% of the total mixture; when the adhesive is resin, the resin accounts for 0.45-1.25% of the total mixture, and the curing agent accounts for 0.14-0.42% of the total mixture.

[0079] That is to say, when water glass is selected as a binder, water glass accounts for 2.5-3.5% (0.5-0.8% of the curing agent is required) and silica sand (the rest) is mixed into molding sand in a certain proportion, a core bone is placed in the water channel, and the water channel is filled with mixed sand. After molding, it is naturally solidified at room temperature. For the core formed by water glass, the core has higher strength after hardening, and the amount of water glass added is small, which significantly improves the disintegration of water glass sand and the recycling of old sand. In addition, water glass sand has good high-temperature yield, which basically solves the problem of supporting the sand mold (core) filling the water channel and the disintegration and recycling of old sand after the composite is completed.

[0080] When resin sand is used as the core, the resin as a binder accounts for 0.45-1.25% (the curing agent needs to be added accounts for 0.14-0.42%) and is mixed with silica sand (the rest) in a certain proportion to form molding sand. The core bone is placed in the water channel, and the water channel is filled with mixed sand. After molding, it is naturally cured at room temperature.

[0081] The hardness of the core formed with resin as a binder is higher than that of water glass sand.

[0082] Considering that increasing the amount of water glass / resin added will increase the strength of the sand mold, but the residual strength of the water glass / resin will also increase, making sand cleaning difficult. When the amount of water glass / resin added is too little, the final strength is too small and cannot meet the use requirements. The embodiment of the present application has determined the above-mentioned optimal matching ratio through multiple tests, so that the combination of core strength and sand cleaning effect is optimal.

[0083] In the embodiment of the present application, by selecting appropriate contents of water glass, resin and corresponding curing agent, the hardness of the core can be improved so that it has good disintegration properties.

[0084] In the embodiments of the present application, optionally, the content of SiO2 in the silica sand is greater than 96%, the particle size of the silica sand is 40-70 mesh, and the content of micro powder less than 200 mesh in the silica sand is less than 1%. The particle size of the sandstone selected in the embodiments of the present application is relatively large, so that in some embodiments, when the water glass sand or the resin sand collapses, the silica sand can be quickly separated by a sieve to improve the reuse rate of the silica sand. In addition, the silica sand of the present application is selected sand. Although the price of artificial sand (SiO2≥98%) is low, the angular coefficient is large, that is, it is a sharp angle, resulting in low strength and poor air permeability of the molding sand.

[0085] In an embodiment of the present application, optionally, heating the composite plate to cause the core to collapse further includes: heating the composite plate at a temperature of 550°C-750°C in a heating furnace for 0.5h--1h to cause the core to collapse. By heating the composite plate for a long time, the core can be collapsed and then be smoothly discharged from the waterway. In some embodiments of the present application, when the filler also includes a lead plate, the heating temperature and heating time can also be selected. After heating, not only the core collapses, but the lead plate also melts, and then the core collapse and the lead plate will be discharged from the outlet hole or the inlet hole together.

[0086] In some embodiments of the present application, optionally, when the strength reinforcement member is a sheet structure, the metal wire is passed through the center of the sheet structure; in some embodiments of the present application, optionally, when the strength reinforcement member is a sheet structure and the metal wire is passed through the center of the sheet structure, the maximum single side length of the strength reinforcement member does not exceed the depth or width of the lower groove body. For example, see Figure 6As shown, the strength reinforcement member 602 is a sheet structure, and when the sheet structure is an unequal-sided triangle, the maximum single-side length is the length of the longest side of the triangle.

[0087] In some embodiments of the present application, optionally, the long sides of the metal wire and the sheet-like structure are fixed, and the plurality of sheet-like structures are distributed along the circumference of the metal wire. Fig.14 FIG. 1 is a schematic diagram of the structure of a bone core in another embodiment of the present application. Fig.14 As shown, the core bone 600 includes a strength reinforcement 602, which is a sheet-like structure and is distributed along the circumference of the metal wire 601. The radial diameter R of the multiple strength reinforcements 602 along the radial direction of the metal wire does not exceed the depth or width of the lower groove body.

[0088] In some other embodiments of the present application, the strength reinforcement members are filamentary structures or rib-like structures, and a plurality of strength reinforcement members are distributed and fixed along the circumference of the metal wire. The distribution form of the strength reinforcement members being filamentary structures or rib-like structures is similar to the ribs of an umbrella, so that when the core collapses, it can also help the collapsed materials of the core to be discharged from the waterway. In addition, when the strength reinforcement members are filamentary structures or rib-like structures, the radial diameters of the plurality of strength reinforcement members along the radial direction of the metal wire do not exceed the depth or width of the lower groove body. In this embodiment, the radial diameter of the strength reinforcement members along the radial direction of the metal wire can refer to the radial diameter of the above-mentioned sheet-like structure when it is distributed along the circumference of the metal wire.

[0089] It should be noted that the strength reinforcement member is located in the waterway, and therefore the height of the strength reinforcement member cannot exceed the depth of the lower groove body.

[0090] In some embodiments of the present application, the cross section of the lower groove body is optionally rectangular or dovetail-shaped. Setting the cross section of the lower groove body to a dovetail shape can increase the bonding area of ​​the flowing mixture of adhesive, curing agent and silica sand and the lower groove body, thereby increasing the bonding strength of the two, and can be tightly filled in the waterway during transportation.

[0091] In summary, the composite cooler processing method proposed in the embodiment of the present application simplifies the processing steps of the composite cooler by first processing the water channel, and reduces the probability of deformation of the water channel in subsequent explosion composite by filling fillers in the water channel, thereby enhancing the structural strength of the composite cooler.

[0092] The above embodiments are only used to illustrate the present application, and are not intended to limit the present application. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the scope of the present application. Therefore, all equivalent technical solutions should also fall within the scope disclosed in the present application.

Claims

1. A method for processing a composite cooler, wherein the body of the composite cooler is composited with a metal plate and a steel plate, and the processing method comprises: Placing a metal plate on a processing platform and processing a groove body on the metal plate so as to form a preset number of water channels on the metal plate; Filling the lower groove with a filler, with the filling height being level with the groove opening; The filler at least comprises a core formed by pouring a mixture of adhesive, curing agent and silica sand into the lower groove body and curing the mixture; Wherein, the adhesive is water glass or resin; Covering the steel plate on the side surface of the metal plate where the lower groove body is formed, and explosively welding the metal plate and the steel plate together by explosive composite welding to obtain a composite plate for making the body and a waterway in the composite plate, wherein the waterway includes the lower groove body and a portion of the steel plate located on the lower groove body; An inlet hole and an outlet hole are provided at a preset position of the composite plate, and the inlet hole and the outlet hole are respectively connected to two ends of the water channel; Heating the composite plate so that the core collapses into bulk core material; The filling material in the current water channel is led out from the outlet hole or the inlet hole to obtain the composite cooler.

2. The processing method of the composite cooler according to claim 1, characterized in that: The filler further includes a core bone, and the core bone is arranged inside the core; before pouring the mixture into the lower groove body, the processing method further includes: A core bone is placed in the lower groove body, wherein the core bone comprises a metal wire and a plurality of strength reinforcement members fixed at intervals along the length direction of the metal wire; Wherein, after the composite plate is heated, the filler in the water channel currently includes core bulk material and core bones.

3. The processing method of the composite cooler according to claim 1, characterized in that: The filler also includes a lead plate; and filling the lower groove body with the filler further includes: After forming the core, a lead plate of a preset thickness is covered on the core, the width of the lead plate is the same as the width of the lower groove body, and the upper surface of the lead plate is flush with the notch of the lower groove body; Wherein, after the composite plate is heated, the filling in the current water channel includes core bulk material and melted lead plate.

4. The processing method of the composite cooler according to claim 1, characterized in that: The filler also includes a lead plate and a core bone; the core bone is arranged inside the core; before pouring the mixture into the lower groove body, the processing method also includes: A core bone is placed in the lower groove body, wherein the core bone comprises a metal wire and a plurality of strength reinforcement members fixed at intervals along the length direction of the metal wire; And, after forming the core and before the steel plate is covered on the metal plate, the processing method further comprises: A lead plate of a preset thickness is covered on the core, wherein the width of the lead plate is the same as the width of the lower groove body, and the upper surface of the lead plate is flush with the notch of the lower groove body; Wherein, after the composite plate is heated, the filling in the current water channel includes core bulk material, melted lead plate and core bone.

5. The processing method of the composite cooler according to claim 4, characterized in that: The thickness of the lead plate is 3-10 mm.

6. The processing method of the composite cooler according to claim 1, characterized in that: The metal plate is a copper plate.

7. The processing method of the composite cooler according to claim 2, characterized in that: The metal plate is a copper-steel composite plate, and the metal plate includes a steel layer and a copper layer. The lower groove body is opened through the steel layer and the copper layer of a preset thickness.

8. The processing method of the composite cooler according to claim 7, characterized in that: A copper-steel explosion composite layer is provided between the copper-steel composite plates.

9. The processing method of the composite cooler according to claim 1, characterized in that: When the adhesive is water glass, the water glass accounts for 2.5-3.5% of the total amount of the mixture, and the curing agent accounts for 0.5-0.8% of the total amount of the mixture; When the adhesive is a resin, the resin accounts for 0.45-1.25% of the total amount of the mixture, and the curing agent accounts for 0.14-0.42% of the total amount of the mixture.

10. The processing method of the composite cooler according to claim 1, characterized in that: The content of SiO2 in the silica sand is greater than 96%, the particle size of the silica sand is 40-70 meshes, and the content of fine powder less than 200 meshes in the silica sand is less than 1%.

11. The processing method of the composite cooler according to claim 1, characterized in that: Heating the composite plate further comprises: The composite plate is heated in a heating furnace at a temperature of 550° C. to 750° C. for 0.5 h to 1 h.

12. The method for processing a composite cooler according to claim 7, characterized in that: The processing accuracy of the composite surface of the copper layer and the steel layer is not less than 6.

3.

13. The processing method of the composite cooler according to claim 2, characterized in that: The strength reinforcement member is a sheet-like structure, a filament-like structure, a rib-like structure, or a combination of two or more thereof.

14. The processing method of the composite cooler according to claim 13, characterized in that: When the strength reinforcement member is a sheet-like structure, the metal wire is inserted into the central position of the sheet-like structure; and / or the metal wire and the long side of the sheet-like structure are fixed, and a plurality of sheet-like structures are distributed along the circumference of the metal wire; When the strength reinforcement member is a wire-like structure or a rib-like structure, a plurality of strength reinforcement members are distributed and fixed along the circumference of the metal wire.

15. The processing method of the composite cooler according to claim 12, characterized in that: When the strength reinforcement member is a sheet structure, and the metal wire is inserted in the center of the sheet structure, the maximum single side length of the strength reinforcement member does not exceed the depth or width of the lower groove body; When the strength reinforcement member is a sheet-like structure, and the metal wire and the long sides of the sheet-like structure are fixed, and a plurality of sheet-like structures are distributed along the circumference of the metal wire, the radial diameters of the plurality of strength reinforcement members along the radial direction of the metal wire do not exceed the depth or width of the lower groove body; When the strength reinforcement members are of a wire-like structure or a rib-like structure, the radial diameters of the plurality of strength reinforcement members along the radial direction of the metal wire do not exceed the depth or width of the lower groove body.

16. The processing method of the composite cooler according to claim 2, characterized in that: The metal wire is iron wire.

17. The processing method of the composite cooler according to claim 2, characterized in that: The diameter of the metal wire is 3-10 mm, and the distance between adjacent strength reinforcements along the length direction of the metal wire is 50-80 mm.

18. The processing method of the composite cooler according to claim 1, characterized in that: The cross section of the lower groove body is rectangular or dovetail-shaped.

19. The processing method of the composite cooler according to claim 1, characterized in that: Also includes: The water inlet and outlet pipes are welded at the position of the introduction hole, and the water outlet pipe is welded at the position of the outlet hole, so that the water inlet pipe and the water outlet pipe are formed on the composite cooler.

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