JP2019168190A - Metal laminate and method of manufacturing metal laminate - Google Patents

Abstract

To provide a metal laminate which has metal plates and gate tubes integrally jointed in such a way to eliminate the need for postprocessing, and also to provide a method of manufacturing such a metal laminate.SOLUTION: A metal laminate comprises a metal block body and gate tubes. The metal block body has a plurality of first metal plates and a plurality of second metal plates alternatingly stacked on top of each other, the first metal plates and the second metal plates having flow channels formed thereon. The metal block body includes first main planes, second main planes opposite the first main planes, and side planes continuing to the first and second main planes. The gate tubes are inserted and joined to the side planes. The side planes are formed with insertion ports into which the gate tubes are inserted. The plurality of first metal plates, the plurality of second metal plates, and the gate tubes are diffusively joined to one another.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a metal laminate and a method for producing the metal laminate.

  The heat exchanger is used as an element of the refrigeration cycle and is an indispensable part for setting the temperature of the working fluid in the refrigeration cycle to a target value. There are various types of heat exchangers. Among them, the outstanding performance of the micro-channel heat exchanger is being recognized, and development is progressing toward practical use.

  Such microchannel heat exchangers include a stacked microchannel heat exchanger. This laminated micro-channel heat exchanger is configured, for example, by alternately laminating metal plates with fine high-temperature fluid channels formed on the surface and metal plates with fine low-temperature fluid channels formed on the surface. By stacking a pressure-resistant metal plate on the top and bottom surfaces of the laminated body and applying pressure and heating in a vacuum state, each heat transfer plate and each metal plate are diffusion-bonded to each other and integrated (for example, Patent Document 1).

Japanese Patent No. 6056928

  However, the entrance and exit of the high temperature fluid and the cryogenic fluid are made by drilling holes in the side of the metal laminate in which a plurality of laminated metal plates are diffusion-bonded, and by inserting the entrance and exit pipes into the holes, followed by brazing. Each is formed by bonding. Such post-processing is complicated, and there is a possibility that cutting powder may enter the inside of the metal laminate or burrs from the hole during the cutting.

  In view of the circumstances as described above, an object of the present invention is to provide a metal laminate and a method for manufacturing the metal laminate that eliminates post-processing for joining an inlet / outlet pipe to the metal laminate.

In order to achieve the above object, a metal laminate according to an embodiment of the present invention includes a metal block body and an inlet / outlet pipe.
The metal block body is formed by alternately laminating a plurality of first metal plates and a plurality of second metal plates in which a flow path is formed. The first main surface and the first main surface A second main surface opposite to the first main surface, and a side surface continuous with the first main surface and the second main surface.
The entrance / exit pipe is inserted into the side surface.
The side surface is provided with an insertion port into which the inlet / outlet pipe is inserted.
The plurality of first metal plates, the plurality of second metal plates, the inlet / outlet pipe, and the insertion port are diffusion-bonded to each other.

  In the metal laminate, a space portion connected to the insertion port and the flow path is provided inside the metal block body, and the length of the insertion port in the stacking direction is the stack of the space portions. It may be shorter than the length in the direction.

  In the metal laminate, a plurality of threshold plates extending in the stacking direction may be provided inside the entrance / exit pipe.

  In the above metal laminate, at least two insertion openings are provided on the side surface, and the length of the first insertion opening (first insertion opening) in the stacking direction is the second insertion opening (second insertion opening). The length of the first insertion port may be longer than the length of the second insertion port in a direction perpendicular to the stacking direction.

In order to achieve the above object, a metal laminate manufacturing method according to an aspect of the present invention includes a first main surface, a second main surface opposite to the first main surface, and the first main surface. A notch is formed in the side surface with respect to a part of the plurality of metal plates having a side surface continuous with the second main surface.
The plurality of metal plates are laminated so that the notches are connected in the stacking direction, and a metal laminate having an insertion port into which the entrance / exit pipe is inserted is formed by the notches connected in the stacking direction.
The entrance / exit pipe is inserted into the insertion port.
Each of the plurality of metal plates and the entrance / exit pipe are diffusion-bonded to each other.

  In the metal laminate manufacturing method, a plurality of threshold plates extending in the stacking direction are provided inside the entrance / exit pipe, and each of the plurality of metal plates and the entrance / exit pipe are diffusion-bonded to each other. Good.

  As described above, according to the present invention, a metal laminate and a method for manufacturing the metal laminate are provided in which post-processing for joining the inlet / outlet pipe to the metal laminate is eliminated.

It is a schematic perspective view of the metal laminated body which concerns on this embodiment. FIG. 2A is a schematic cross-sectional view along the line A1-A1 of FIG. FIG. 2B is a schematic cross-sectional view taken along line A2-A2 of FIG. It is a schematic perspective view explaining the method to manufacture the metal laminated body of this embodiment. It is a schematic perspective view explaining the method to manufacture the metal laminated body of this embodiment. It is a schematic perspective view explaining the method to manufacture the metal laminated body of this embodiment. It is a schematic perspective view which shows the laminated body after diffusion bonding. It is a schematic sectional drawing which shows the modification of this embodiment. It is a schematic perspective view which shows another modification of this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, XYZ axis coordinates may be introduced.

  [Configuration of metal laminate]

FIG. 1 is a schematic perspective view of a metal laminate according to this embodiment.
FIG. 2A is a schematic cross-sectional view along the line A1-A1 of FIG.
FIG. 2B is a schematic cross-sectional view taken along line A2-A2 of FIG.

  As shown in FIG. 1, the metal laminate 10 includes a metal block main body 1, a pair of entrance / exit pipes 5A and 5B, and a pair of entrance / exit pipes 5C and 5D. The metal laminate 10 is applied to, for example, a part of a laminated microchannel heat exchanger. For example, in the metal laminate 10, a high-temperature medium flows from the inlet / outlet pipe 5 </ b> A, and is discharged from the inlet / outlet pipe 5 </ b> B through the metal block body 1. On the other hand, a low-temperature medium flows in from the inlet / outlet pipe 5C, passes through the metal block body 1, and is discharged from the inlet / outlet pipe 5D.

  The metal block body 1 includes a plurality of metal plates 2A (first metal plates), a plurality of metal plates 2B (second metal plates), an outer shell plate 3A, and an outer shell plate 3B. In the metal block body 1, the outer shell plate 3A is disposed in the lowermost layer, the outer shell plate 3B is disposed in the uppermost layer, and a plurality of metal plates 2A and a plurality of metal plates 2A are disposed between the outer shell plate 3A and the outer shell plate 3B. The metal plates 2B are alternately laminated. A plurality of metal plates 2A and 2B laminated between the outer shell plate 3A and the outer shell plate 3B are collectively referred to as a laminate 2.

  The metal block body 1 includes a first main surface 1u (upper surface), a second main surface 1d opposite to the first main surface 1u, and a side surface 1w continuous with the first main surface 1u and the second main surface 1d. And have. A channel is formed in each of the plurality of metal plates 2A and each of the plurality of metal plates 2B (described later). The metal block body 1 has, for example, a substantially rectangular parallelepiped shape.

  The entrance / exit pipes 5A, 5B and the entrance / exit pipes 5C, 5D are inserted and joined to the side surface 1w of the metal block body 1. For example, the entrance / exit tubes 5A and 5B are inserted and joined to the side surface 1w of the metal block body 1 in the Y-axis direction, and the entrance / exit tubes 5C and 5D are inserted and joined to the side surface 1w of the metal block body 1 in the X-axis direction. . That is, the direction from the entrance / exit pipe 5A toward the entrance / exit pipe 5B intersects the direction from the entrance / exit pipe 5C toward the entrance / exit pipe 5D.

  As an example, FIG. 2A shows a view in which the inlet / outlet pipes 5A and 5B are inserted and joined to the side surface 1w of the metal block body 1. FIG. As shown in FIG. 2A, the side surface 1w is provided with an insertion port 21 into which one entrance / exit tube 5A is inserted and an insertion port 22 into which the other entrance / exit tube 5B is inserted. In addition, in the drawings for explaining the present embodiment, a configuration in which one insertion port is provided on one side surface is illustrated, but the insertion port provided on one side surface is not limited to one location, and a plurality of locations. It can also be provided. In addition, the shape of the insertion port seen toward the side surface should just be a rectangle. This is because if the shape is circular or elliptical, a step corresponding to the plate thickness of the metal plates 2A and 2B occurs on the inner wall of the insertion slot. If there is a level difference, it becomes a factor that causes a problem in joining with the entrance / exit pipe.

  The insertion port 21 is disposed to face the insertion port 22. Such an insertion port is also provided on the side surface 1w into which the inlet / outlet pipes 5C and 5D are inserted. The insertion ports into which the inlet / outlet pipes 5C and 5D are inserted are also arranged to face each other. Moreover, the height from the interface of 3 A of outer shell plates and the laminated body 2 of each insertion port is substantially the same.

  In order to form the insertion ports 21 and 22 in the central portion of the side surface 1w, the metal plate 2A includes a metal plate 2Aa in which the insertion ports 21 and 22 are not formed and a metal plate 2Ab in which the insertion ports 21 and 22 are formed. Including. Similarly, the metal plate 2B includes a metal plate 2Ba in which the insertion ports 21 and 22 are not formed, and a metal plate 2Bb in which the insertion ports 21 and 22 are formed.

  For example, as shown in FIGS. 2A and 2B, the metal plates 2 </ b> Aa and the metal plates 2 </ b> Ba are alternately stacked in the stacking direction (Z-axis direction) where the insertion openings 21 and 22 are not formed. In the locations where the insertion ports 21 and 22 are formed, the metal plates 2Ab and the metal plates 2Bb are alternately stacked in the stacking direction.

  Inside the metal block main body 1, a space portion 1 s connected to the insertion port 21 and a space portion 1 t connected to the insertion port 22 are provided. In the stacking direction of the metal block main body 1, the length Lp of the insertion port 21 is shorter than the length Ls of the space portion 1s, and the length of the insertion port 22 is shorter than Lq and the length Lt of the space portion 1t. In addition, the insertion ports 21 and 22 are configured such that the length in the direction (X-axis direction or Y-axis direction) orthogonal to the stacking direction is longer than the lengths Lp and Lq in the stacking direction.

  A plurality of threshold plates 51 extending in the stacking direction are provided inside the entrance / exit pipes 5A to 5D. For example, in the entrance / exit pipe 5A illustrated in FIG. 2B, a plurality of threshold plates 51 are disposed inside the entrance / exit pipe 5A. Each of the plurality of threshold plates 51 extends in the stacking direction and is arranged in a direction intersecting the stacking direction (X-axis direction). Each of the plurality of threshold plates 51 extends in the Y-axis direction. The plurality of threshold plates 51 are located in the insertion slot 21.

  In such a metal laminate 10, each of the plurality of metal plates 2A, each of the plurality of metal plates 2B, the outer shell plate 3A, and the outer shell plate 3B are diffusion-bonded to each other. Furthermore, at least a part of the entrance / exit pipe 5A and the insertion port 21, and the entrance / exit pipe 5B and at least a part of the insertion port are diffusion-bonded to each other. Also in each of the entrance / exit pipes 5C and 5D, diffusion bonding is performed with at least a part of the insertion opening provided in the side surface 1w.

  The metal plates 2A and 2B, the outer shell plate 3A, and the outer shell plate 3B have high thermal conductivity, and are, for example, the same type of metal plate. The metal plates 2A and 2B, the outer shell plate 3A, and the outer shell plate 3B are, for example, aluminum, a stainless steel plate, or the like. Each of the entrance / exit pipes 5A to 5D may be made of the same material as the metal plates 2A and 2B, and may be made of a different material from the metal plates 2A and 2B. The dissimilar material may be a combination capable of diffusion bonding. For example, the combination includes copper, aluminum, aluminum alloy, stainless steel (SUS), titanium, magnesium alloy, and two or more of these. The material is selected according to the purpose. Specific examples of the diffusion bonding method include solid phase bonding, hot pressure welding, and cold pressure welding.

  (Metal laminate manufacturing method)

  FIG. 3A to FIG. 5 are schematic perspective views for explaining a method for producing the metal laminate of this embodiment.

  For example, as the metal plate 2A constituting the metal block body 1, a metal plate 2Ab shown in FIG. 3A and a metal plate 2Aa shown in FIG. 3B are prepared.

  The metal plate 2Ab shown in FIG. 3A is continuous to the first main surface 2u, the second main surface 2d opposite to the first main surface 2u, the first main surface 2u, and the second main surface 2d. Side surface 2w. The metal plate 2Ab is provided with notches 211, 221, 231, 241 and openings 212, 222, 232, 242. Here, the notch 211 communicates with the opening 212. The notch 221 communicates with the opening 222. The notch 231 communicates with the opening 232. The notch 241 communicates with the opening 242.

  In the metal plate 2Aa shown in FIG. 3B, notches 211, 221 231 and 241 are not provided, but openings 212, 222, 232 and 242 are provided.

  Furthermore, the metal plates 2Aa and 2Ab are provided with grooves 25A, 30A, and 31A that form a flow path for high-temperature fluid. The grooves 25A, 30A, 31A are provided on one surface of the metal plates 2Aa, 2Ab by, for example, a half etching technique. The depths of the grooves 25A, 30A, and 31A may be uniform at any location.

  In the metal plates 2 </ b> Aa and 2 </ b> Ab, a plurality of grooves 25 </ b> A and 30 </ b> A communicating between the opening 212 and the opening 222 are provided between the opening 212 and the opening 222 provided at both ends in the Y-axis direction. , 31A are formed. The number of grooves 25A is not limited to the three illustrated.

  For example, the plurality of grooves 25A are formed along the X-axis direction. The grooves 30A and 31A are formed along the Y-axis direction. One end of the groove 30 </ b> A communicates with the opening 212. One end of the groove 31 </ b> A communicates with the opening 222. The plurality of grooves 25A communicate between the groove 30A and the groove 31A.

  Thus, the notches 211, 221, 231, and 241 are formed in advance on the side surface 2w of a part of the plurality of metal plates 2A (metal plate 2Ab) constituting the metal block main body 1.

  Moreover, as metal plate 2B which comprises the metal block main body 1, metal plate 2Bb shown to Fig.4 (a) and metal plate 2Ba shown to FIG.4 (b) are prepared.

  The metal plate 2Bb shown in FIG. 4A has a first main surface 2u, a second main surface 2d, and a side surface 2w. The metal plate 2Bb is provided with notches 211, 221, 231, 241 and openings 212, 222, 232, 242.

  The metal plate 2Ba shown in FIG. 4 (b) is not provided with the notches 211, 221, 231, 241 but is provided with openings 212, 222, 232, 242.

  The metal plates 2Ba and 2Bb are provided with grooves 25B that form a flow path for a low-temperature fluid. The groove 25B is provided on one surface of the metal plates 2Ba and Bb by, for example, a half etching technique. The depth of the groove 25B may be uniform at any location.

  In the metal plates 2Ba and 2Bb, a plurality of grooves 25B communicating between the opening 232 and the opening 242 are formed between the opening 232 and the opening 242 respectively provided at both ends in the X-axis direction. Has been. The number of grooves 25B is not limited to the three illustrated.

  For example, the plurality of grooves 25B are formed along the X-axis direction. The groove 25 </ b> B has one end communicating with the opening 232 and the other end communicating with the opening 242.

  Thus, the notches 211, 221, 231 and 241 are formed in advance on the side surface 2w of a part of the plurality of metal plates 2B (metal plate 2Bb) constituting the metal block main body 1.

  Note that the process for forming the grooves, notches, and openings is performed by etching, laser processing, precision press processing, cutting, or the like. In addition, an additive manufacturing technique such as a 3D printer can also be used as the processing.

  Next, as shown in FIG. 5, the laminate 2 composed of the metal plates 2 </ b> A and 2 </ b> B is disposed between the outer shell plate 3 </ b> A and the outer shell plate 3 </ b> B.

  For example, after a plurality of metal plates 2Aa and a plurality of metal plates 2Ba are alternately stacked on the outer shell plate 3A, a plurality of metal plates 2Ab and a plurality of metal plates 2Bb are alternately stacked. Furthermore, after alternately laminating a plurality of metal plates 2Aa and a plurality of metal plates 2Ba, an outer shell plate 3B is laminated.

  Thereby, the insertion ports 21 and 22 facing in the Y-axis direction and the insertion ports 23 and 24 facing in the X-axis direction are formed on the side surface 1w of the stacked body 2. That is, by stacking, the notch 211 is connected in the stacking direction to form the insertion port 21, and the notch 221 is connected to the stacking direction to form the insertion port 22. Further, by stacking, the cutout 231 is connected in the stacking direction to form the insertion port 23, and the cutout 241 is connected in the stacking direction to form the insertion port 24.

  In addition, the opening 212 is connected in the stacking direction to form a space 1s, and the opening 222 is connected in the stacking direction to form the space 1t. Further, by stacking, the opening 232 is connected in the stacking direction to form the space 1u, and the opening 242 is connected in the stacking direction to form the space 1v. The insertion port 21 communicates with the space portion 1s, and the insertion port 22 communicates with the space portion 1t. The insertion port 23 communicates with the space 1u, and the insertion port 24 communicates with the space 1v.

  Next, as illustrated in FIG. 1, the entrance / exit tube 5 </ b> A is inserted into the insertion port 21, the entrance / exit tube 5 </ b> B is inserted into the insertion port 22, the entrance / exit tube 5 </ b> C is inserted into the insertion port 23, and the entrance / exit tube is inserted into the insertion port 24. Insert 5D. A plurality of threshold plates 51 (FIGS. 2A and 2B) extending in the stacking direction are provided inside the entrance / exit pipes 5A to 5D.

  Thereafter, the plurality of metal plates 2Aa and the plurality of metal plates 2Ba, the plurality of metal plates 2Ab and the plurality of metal plates 2Bb, respectively, the outer shell plate 3A, the outer shell plate 3B, and the inlet / outlet pipes 5A to 5D, respectively. By pressurizing and heating in a reduced pressure atmosphere, the metal plates 2A and 2B, the metal plates 2A and 2B, and any of the inlet / outlet pipes 5A to 5D are mutually bonded by solid phase diffusion bonding. Join. At the time of solid phase diffusion bonding, a load is applied to the laminate 2, the outer shell plate 3A, and the outer shell plate 3B in the stacking direction to pressurize it. The state after diffusion bonding has already been shown in FIG.

  Next, heat exchange between the high-temperature fluid channel and the low-temperature fluid channel that occurs in the laminate 2 will be described.

  FIG. 6A and FIG. 6B are schematic perspective views showing the laminate after diffusion bonding. FIG. 6A illustrates a state in which the metal plate 2B which is the uppermost layer in the stacked body 2 is removed. 6 (a) and 6 (b), the outer shell plate 3A, the outer shell plate 3B, and the inlet / outlet pipes 5A to 5D are provided to describe the flow direction of the medium in the laminated body 2 with arrows. It is not displayed.

  As shown in FIGS. 6A and 6B, the metal plates 2A (2Aa, 2Ab) and the metal plates 2B (2Ba, 2Bb) are oriented on the surfaces provided with both grooves 25A, 25B, 30A, 31A. Are overlapped and stacked one on top of the other. Here, the metal plate 2A functions as a high temperature heat transfer plate, and the metal plate 2B functions as a low temperature heat transfer plate.

  For example, as shown to Fig.6 (a), a high temperature fluid flow path is formed between each groove | channel 25A, 30A, 31A of the metal plate 2A, and the lower surface of the metal plate 2B. The high-temperature fluid flows from the insertion port 21 and is distributed to the plurality of grooves 25A through the groove 30A via the space 1s. The high-temperature fluid that has passed through the plurality of grooves 25A merges in the groove 31A and flows out from the insertion port 22 through the space 1t. Such a high-temperature fluid flow is generated in each metal plate 2A (high-temperature fluid flow path layer).

  Further, as shown in FIG. 6B, the low-temperature fluid flow path is formed between the groove 25B of the metal plate 2B, the lower surface of the outer shell plate 3B, and the lower surface of the metal plate 2A. The cryogenic fluid flows from the insertion port 23 and is distributed by the plurality of grooves 25B through the space 1u. Further, the cryogenic fluid joins in the space 1 v and flows out from the insertion port 24. Such a low-temperature fluid flow occurs in each metal plate 2B (low-temperature fluid flow path layer).

  Since the high temperature fluid flow path layer (metal plate 2A) and the low temperature fluid flow path layer (metal plate 2B) are alternately laminated in the laminate 2, the high temperature fluid and the low temperature fluid are interposed via the metal plate 2A and the metal plate 2B. Heat exchange between the two. In addition, the laminated body 2 is also called a heat exchanger main body.

  As described above, according to the present embodiment, the notches 211, 221, 231 and 241 provided in the metal plates 2A and 2B are communicated in the stacking direction, thereby inserting the inlet / outlet pipes 5A to 5D. 24 is formed.

  Here, when diffusion bonding of the outer shell plate 3A and the outer shell plate 3B of each of the plurality of metal plates 2A and 2B is performed at the stage before the entrance / exit pipes 5A to 5D are inserted into the insertion ports 21 to 24, stacking is performed. Depending on the load applied in the direction, the insertion ports 21 to 24 may be deformed or the laminated body 2 may be buckled.

  On the other hand, in the present embodiment, the outer shell plate 3A, the outer shell plate 3B, and the plurality of metal plates 2A and 2B, respectively, in a state where the inlet / outlet tubes 5A to 5D are inserted into the insertion ports 21 to 24, and Each diffusion bonding of the entrance / exit pipes 5A to 5D is performed. Thereby, even if a load is applied in the stacking direction, the stacked body 2 is reinforced by the entrance / exit pipes 5A to 5D, the insertion ports 21 to 24 are not easily deformed, and the stacked body 2 is not easily buckled.

  In particular, when a plurality of threshold plates 51 extending in the stacking direction are provided inside the entrance / exit pipes 5 </ b> A to 5 </ b> D, the stacked body 2 is more resistant to loads in the stacking direction. Further, by providing a plurality of threshold plates 51 inside the entrance / exit pipes 5A to 5D, the fluid is efficiently distributed in front of the space portions 1s, 1u, and the fluid is evenly distributed to the space portions 1s, 1u.

  Moreover, according to this embodiment, the insertion ports 21 to 24 can be formed without using mechanical post-processing such as a lathe. For this reason, cutting powder is not generated from the metal block body 1, and the cutting powder does not enter the laminated body 2. Moreover, since metal plate 2A, 2B and each of the entrance / exit pipes 5A-5D are diffusion-joined with each other, the brazing process of the entrance / exit pipes 5A-5D and the laminated body 2 is not required.

  (Modification 1)

  FIG. 7 is a schematic cross-sectional view showing a modification of the present embodiment.

  In the metal laminated body 10 shown in FIG. 7, the height of the insertion slot which opposes may differ in the lamination direction. For example, in the example of FIG. 7, the height of the insertion port 21 from the outer shell plate is different from the height of the insertion port 22.

  For example, when using the heat exchanger body as an evaporator by flowing the working fluid in two phases, the inlet is located on the bottom side and the outlet is at the center or top surface in consideration of the effect of gravity acting on the working fluid. It should be placed on the side. By doing in this way, a gaseous-phase refrigerant | coolant can be easily flowed into the groove | channel of the gravity direction lower part among the groove | channel 25A provided in the laminated body 2, or the groove | channel 25B. The gas-liquid mixing ratio can be adjusted and distributed.

  (Modification 2)

  FIG. 8 is a schematic perspective view showing another modification of the present embodiment.

  In the metal laminate 10 shown in FIG. 8, the length of the insertion port 21 is shorter than the length of the insertion port 22 in the stacking direction. In addition, the length of the insertion port 21 is longer than the length of the insertion port 22 in the direction orthogonal to the stacking direction. In the stacking direction, the length of the insertion port 23 is shorter than the length of the insertion port 24. In addition, the length of the insertion port 23 is longer than the length of the insertion port 24 in the direction orthogonal to the stacking direction. That is, the insertion ports facing each other cross in the X-axis direction or the Y-axis direction.

  Since the entrance / exit of the heat exchanger can be set according to the installation space of the heat exchanger, there are merits that workability is improved and excessive force is not applied to the connected piping.

  As mentioned above, although embodiment of this invention was described, this invention is not limited only to the above-mentioned embodiment, Of course, a various change can be added. Each embodiment is not limited to an independent form, and can be combined as much as technically possible.

DESCRIPTION OF SYMBOLS 1 ... Metal block main body 1s, 1t, 1u, 1v ... Space part 1u, 2u ... 1st main surface 1d, 2d ... 2nd main surface 1w, 2w ... Side surface 2 ... Laminate 2A, 2Aa, 2Ab, 2B, 2Ba, 2Bb ... Metal plate 3A, 3B ... Outer shell plate 5A, 5B, 5C, 5D ... Entrance / exit tube 10 ... Metal laminate 21, 22, 23, 24 ... Insertion port 25A, 25B, 30A, 31A ... Groove 51 ... Threshold plate 211, 221, 231, 241... Notch 212, 222, 232, 242, opening

Claims (6)

A plurality of first metal plates and a plurality of second metal plates in which a flow path is formed are alternately stacked, and the first main surface is opposite to the first main surface. A metal block body having two main surfaces, and a side surface continuous with the first main surface and the second main surface;
An inlet / outlet pipe inserted in the side surface,
The side surface is provided with an insertion port into which the inlet / outlet pipe is inserted,
The metal laminate in which the plurality of first metal plates, the plurality of second metal plates, the inlet / outlet pipe and the insertion port are diffusion-bonded to each other. The metal laminate according to claim 1,
Inside the metal block main body, a space portion connected to the insertion port and the flow path is provided,
The length of the insertion slot in the stacking direction is shorter than the length of the space portion in the stacking direction. The metal laminate according to claim 1 or 2,
A metal laminate in which a plurality of threshold plates extending in the laminating direction are provided inside the entrance / exit pipe. The metal laminate according to any one of claims 1 to 3,
The side surface is provided with at least two insertion ports, and the length of the first insertion port in the stacking direction is shorter than the length of the second insertion port in the stacking direction, and a direction orthogonal to the stacking direction. The length of the first insertion slot is longer than the length of the second insertion slot. For part of a plurality of metal plates having a first main surface, a second main surface opposite to the first main surface, and a side surface continuous to the first main surface and the second main surface Forming a notch in the side surface,
Laminating the plurality of metal plates so that the cutouts are connected in the stacking direction, and forming a laminate provided with an insertion port into which an inlet / outlet pipe is inserted by the cutouts connected in the stacking direction,
Inserting the inlet / outlet pipe into the insertion port;
A method for manufacturing a metal laminate, in which each of the plurality of metal plates and the inlet / outlet pipe are diffusion-bonded to each other. It is a manufacturing method of the metal laminated body of Claim 5,
Provide a plurality of threshold plates extending in the stacking direction inside the entrance pipe,
A method for manufacturing a metal laminate, in which each of the plurality of metal plates and the inlet / outlet pipe are diffusion-bonded to each other.

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