JP2916129B1 - Manufacturing method of grooved plate-shaped member - Google Patents

Abstract

An object of the present invention is to provide a method for manufacturing an inexpensive grooved plate-like member having a uniform cross-sectional shape and a groove having a flush opening surface, and to manufacture a heat-exchange plate-like member having good heat exchange efficiency. Provide a way. A groove forming step of forming a groove 41 on a surface 70a of a plate-like member 70 by forging, and an outer peripheral groove forming step of forming an outer peripheral groove 42 around the groove 41 by forging. A manufacturing method of a grooved plate member, wherein the step is performed immediately before or simultaneously with the groove forming step to form the grooved plate member 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a grooved plate member by forging, for example, a method for manufacturing a plate-shaped grooved plate member used for a heat exchanger plate member such as a semiconductor. is there.

[0002]

2. Description of the Related Art Heretofore, there has been known a plate heat exchanger which radiates heat of a semiconductor or the like (heat generating body) having a large calorific value through a heat exchanger plate member.

As shown in FIG. 11, a plate member for a heat exchanger of this plate heat exchanger is formed by cutting a thin meandering groove 2 continuous with a surface 1a of a thin plate 1 (plate member) made of aluminum or copper. A thin plate 3 made of aluminum or copper is superimposed on a meandering groove 2 machined on the surface 1a of the grooved plate-like member and brazed. It is sealed (see Nikkei Mechanical Magazine 1994, 5, 308, pp. 9-9).

[0004]

However, when a thin meandering groove 2 is cut in the thin plate 1 (plate-like member), one groove 2a of the meandering groove 2 is cut, and the thin groove 1 is adjacent to the thin plate 1 at a predetermined distance from the groove 2a. The other groove 2b is cut in parallel. However, during cutting of the groove 2b, the intermediate portion 2c with the groove 2a falls down toward the groove 2a, and the cross-sectional shape of the cut groove 2a is deformed. For this reason, there is a problem that the cutting process of the meandering groove 2 is difficult, the processing time is long, the defective rate of the plate member for a heat exchanger is increased, and the manufacturing cost is increased.

Accordingly, an object of the present invention is to provide a method of manufacturing an inexpensive grooved plate-like member having a uniform cross-sectional shape and a groove having a flush opening surface, and to provide a heat exchanger having a high heat exchange efficiency. An object of the present invention is to provide a method for manufacturing a plate-shaped member.

[0006]

Means for Solving the Problems] To achieve this object, a first aspect of the invention includes a serpentine groove forming step of forming by forging a meandering channel on the surface of the plate-shaped member, forged around the meandering channel Forming an outer peripheral groove by forming an outer peripheral groove by immediately before or simultaneously with the meandering groove forming step, thereby forming a grooved plate member. And how to do it.

[0007] Claim 2, wherein the meandering channel forming step is characterized in the that forming said serpentine groove in the recess after the recess forming step of forming the recesses in the surface of the plate-like member.

According to a third aspect of the present invention, the grooved plate member is used as a plate member for a heat exchanger that radiates heat of a heating element.

[0009] Claim 4, the volume of the recess is characterized in that the meandering channel top surface and the amount that may be on the surface and substantially flush upon molding the meandering <br/> groove.

According to a fifth aspect of the present invention, the outer peripheral groove is formed such that a cut portion is formed on the same line and is intermittently formed.

According to a sixth aspect of the present invention, the grooved plate member forms a positioning hole immediately after forming the meandering groove.

A seventh aspect of the present invention is characterized in that the material of the grooved plate member is a heat conductor having good heat conductivity.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a plate heat exchanger 10, in which a grooved plate member 40 of the present invention is used as a plate member 15 for a heat exchanger.

As shown in FIG. 1, the plate heat exchanger 10 includes a mounting board 20 on which semiconductors 21 are mounted, a brazing sheet 30, and a grooved plate member 40.

The mounting substrate 20 is a rectangular plate having a thickness of, for example, 1.0 t. The mounting substrate 20 is made of a heat conductor having good heat conductivity such as aluminum or copper.

On the front surface 20a of the mounting substrate 20, a semiconductor 21 having a large amount of heat, which is a heating element indicated by a dashed line, is mounted, and on the back surface opposite to the semiconductor etc., a brazing sheet 30 is mounted. In addition, location holes 22 for the brazing sheet 30 and the grooved plate-shaped member 40 are formed at two opposing corners of the mounting board 20.

The brazing sheet 30 is mounted on the mounting board 20.
It is a thin plate having the same shape and the same dimensions as above, and a plate thickness of, for example, 1.2 t. The brazing sheet 30 is a heat conductor having good heat conductivity, for example, brazed with tin or the like on both surfaces of an aluminum thin plate. The brazing sheet 30 is interposed between the mounting board 20 and the grooved plate member 40. Note that location holes 31 are formed at two opposing corners of the brazing sheet 30 (see FIG. 10).

The grooved plate member 40 is a thin plate having the same shape and the same size as the mounting substrate 20 and a thickness of, for example, 2.5 t.
The grooved plate member 40 is a heat conductor having good heat conductivity, such as aluminum or copper, like the mounting substrate 20. The surface 40 a side of the grooved plate member 40 is a mounting surface for the brazing sheet 30.

As shown in FIG. 2, the grooved plate member 40 has a meandering groove 41 (groove) formed on the surface 40a and an outer peripheral groove 42 formed around the meandering groove 41. .
At the opposite corner of the grooved plate member 40, the mounting substrate 2
And the location hole 40 with the brazing sheet 30
h is formed.

The meandering groove 41 has a starting groove 41b formed near one side of one short side 40b on the left side in FIG. 2 as a starting point, and a terminal groove 41c formed near the other side end of one short side 40b. It is the end point.

A plurality of bent grooves 41d are formed between the start and end grooves 41b and 41c at a position spaced a predetermined distance from the edge of the short side 40b along one short side 40b. On the other short side 40c side (right side in FIG. 2), a plurality of bent grooves 41e are formed along the other short side 40c at a position separated from the edge of the short side 40c by a predetermined distance. One end of the filling groove 41a is communicated with substantially the center of the bending groove 41d 'near the starting groove 41b among the plurality of bending grooves 41d. This filling groove 41
a is formed in a direction orthogonal to the short side portion 40b and the short side portion 4
0b.

A plurality of straight grooves 41f are formed between the curved grooves 41d and 41e substantially in parallel with the long sides 40d and 40e. Among the plurality of straight groove portions 41f, a straight groove portion 41g continuing from the start end groove portion 41b is one long side portion 4
0d (front side in FIG. 2) is formed at a position separated by a predetermined distance from the edge. On the other hand, a straight groove 41h reaching the terminal groove 41c is formed at a position separated by a predetermined distance from the edge of the other long side 40e (the far side in FIG. 2).
As described above, the formation region 42i of the meandering groove 41 is located substantially at the center of the surface 40a of the grooved plate-like member 40 as shown by the two-dot chain line (see FIG. 2).

As shown in FIG. 3, the grooved plate-shaped member 40 has a meandering groove 41 having a groove depth (T1) of, for example, 1.5 mm and a remaining thickness (T3) of 1.0 mm. The remaining thickness T3 is less than twice the groove depth T1 of the meandering groove 41. The meandering groove 41 has, for example, a substantially U-shaped cross section.

The outer peripheral groove 42 starts from the outer peripheral start end groove 42a at a position spaced apart from the filling groove 41a by a predetermined distance on one long side portion 40d, and extends from the filling groove 41c in a direction facing the outer peripheral start end groove 42a. The outer peripheral end groove portion 42b is an end point at an interval.

The outer circumferential groove 42 is a continuous groove having a rectangular shape and a cut annular shape, and surrounds the formation area 41i of the meander groove 41 at a predetermined distance from the formation area 41i of the meander groove 41. Further, the outer peripheral groove 42 includes a linear groove 41g of the meandering groove 41 on the outer peripheral side, a plurality of bent grooves 41e, and a linear groove 41h.
And a predetermined distance from the plurality of bent grooves 41d. The outer peripheral start / end groove ends 42a and 42b are filled with the filling groove 4
1a, the filling grooves 41 are located at predetermined intervals.
The position may be near the end of the short side portion 40b along the line a.

Next, the manufacture of the grooved plate member 40 will be described with reference to FIGS.

First, FIG. 4 shows a pressing machine 50 (dashed line) which is an apparatus for manufacturing the grooved plate member 40.

This press 50 is, as shown in FIG.
The mold 51 includes a die member 54 fixed to the press lower base 52 and a punch member 60 mounted on the press upper base 53. The press upper base 53 is moved up and down toward the press lower base 52 via, for example, a guide member 55, and a punch member 60 is mounted on the die member 54. (Shaped member) is pressed.

The punch member 60 includes a concave punch member 61 for forming and pressing a concave portion 81 described later, and a groove punch member 62 for forming and pressing the meandering groove 42 and the outer peripheral groove 43.

As shown in FIG. 5, the recess punch member 61 has a recess forming portion 61b formed on a press surface 61a. The concave part forming part 61b has a bottom part forming part 61c for forming a bottom part 81a of the concave part 81 described later, and a slope forming part 61d for forming an inclined part 82 from the peripheral part 81b of the concave part 81 toward the bottom part 81a. It has a trapezoidal shape.

As shown in FIG. 6, when the meandering groove 41 is formed on the press surface 62a, the groove punching member 62 forms a meandering groove forming part 62b and an outer circumferential groove forming part 62c for forming the outer circumferential groove 42. ing.

The meandering groove forming portion 62b and the outer peripheral groove forming portion 62c are provided on the surface 40 of the grooved plate member 40 shown in FIG.
a facing the meandering groove 41 and the outer peripheral groove 42.

The meandering groove forming portion 62b has a substantially U-shaped cross section, and the outer peripheral groove forming portion 62c has, for example, a trapezoidal cross section. The projecting length of the outer peripheral groove forming portion 62c is shorter than the projecting length of the meandering groove forming portion 62b, and as shown in FIG.
The groove depth T1 of the meandering groove 41 is formed deeper than the groove depth T2 of the outer peripheral groove 42.

A knockout forming member (not shown) for forming a location hole 40h of the grooved plate member 40 is provided in the groove punch member 62.

Next, a method of manufacturing the grooved plate member 40 by the press machine 50 will be described.

First, a thin plate of aluminum having a thickness of 1.0 t is cut into substantially the same diameter and the same size as the mounting substrate 20 to prepare a substrate 70 of a grooved plate-like member as shown in FIG.

The press machine 50 is set in the operating state, the concave punch member 61 is mounted on the press upper base 53, and the substrate 70 is set on the die member 54.

After setting the substrate 70, the press machine 50 is operated to lower the press upper base 53 at a predetermined pressure. Then, the bottom surface forming portion 61c of the concave punch member 61 comes into contact with the surface 70a of the substrate 70, and as the bottom surface forming portion 61b presses the surface 70a of the substrate 70, the inclined forming portion 6
1d is pressed to form a recess 81 in the surface 70a of the substrate 70 as shown in FIG. A bottom surface portion 81a is formed substantially at the center of the concave portion 81 by the bottom portion forming portion 61c, and a peripheral portion 81 of the concave portion 81 is formed by the inclined formed portion 61d.
An inclined portion 82 is formed from b toward the bottom surface portion 81a. This inclined portion 82 is gentle as shown in FIG. Although the concave portion 81 is press-formed, it may be formed by cutting.

When the formation of the concave portion 81 is completed, the press upper base 53 is raised, the primary formed substrate 80 of the grooved plate member 40 in which the formation of the concave portion 81 is completed is removed, and the substrate 70 is set again and repeated. The primary forming substrate 80 is formed (recess forming step).

When a predetermined amount of the primary molded substrate 80 is completed, the grooved plate member 40 is formed using the primary molded substrate 80.
Get ready to manufacture.

First, the groove punch member 62 is attached to the press upper base 53 instead of the concave punch member 61, and the substrate 7
0, the primary molded substrate 80 is
Set to.

When the press machine 50 is operated to lower the press upper base 53 at a predetermined pressure, the outer peripheral groove forming portion 62c of the groove punch member 62 comes into contact with the surface 80a of the primary forming substrate 80, and The outer periphery of the meandering groove forming portion 62b is in contact with the inclined portion 82.

Further, the groove punch member 62 descends, the outer peripheral groove forming portion 62c forms the outer peripheral groove 42 (outer peripheral groove forming step), and the meandering groove forming portion 62b moves to the bottom portion 8.
1a is formed in the meandering groove 41 (radiation groove forming step), and FIG.
Is press-formed.

At this time, the meandering grooves 41g and 41h start to be formed in the inclined portion 82 almost at the same time as the outer peripheral groove 42 starts to be formed. Then, the outer peripheral groove 42 and the meandering grooves 41g, 4
The excess thickness of 1h tends to flow to the back side of the grooved plate member 40, but the depth of the meandering groove 41 to be formed (T1)
, The remaining thickness (T3) decreases, and the outer peripheral groove 42
And the surplus thickness of the meandering grooves 41g and 41h is the grooved plate-like member 4.
0 cannot flow to the back side, and the excess thickness of the outer circumferential groove 42 is
Side and the side opposite to the recess 81, and the meandering groove 4
Excess portions of 1 g and 41 h tend to flow toward the outer peripheral groove 42 and the concave portion 81. Therefore, of the surplus portions of the meandering grooves 41g and 41h, the surplus portion flowing toward the outer peripheral groove 42 faces the surplus portion flowing toward the concave portion 81 side of the outer peripheral groove 42, so that the surplus portions of the two portions do not flow.

Immediately thereafter, a meandering groove 41f is formed in the bottom surface 81a of the concave portion 81, and the surplus flow flowing to the meandering grooves 41g and 41h of the meandering groove 41f close to the meandering grooves 41g and 41h flows to the concave portion 81 side. The excess portions of the grooves 41g and 41h clash with each other, so that the excess portions of both channels do not flow. For this reason, the meandering grooves 41g and 41h have a groove cross-section having no deformation and a groove depth T.
1 and the opening surfaces of the meandering grooves 41g and 41h can be made substantially flush.

On the other hand, the excess thickness of the other meandering groove 41f flows upward by the outer circumferential groove 42 and the meandering grooves 41g and 41h formed first, and the meandering groove 41f formed on the surface of the concave portion 81 is not deformed. The shape can be formed to the groove depth T1, and the opening surface of the meandering groove 41f can be made substantially flush. In addition, the outer peripheral groove 42 that is to flow to the opposite side (outside) of the concave portion 81
There is nothing to block the flow of the excess meat,
As shown in FIG. 3, a gentle outer wall 42b is formed from the outer end of the bottom wall 42a.

Then, a location hole 40h is formed by a knockout forming member (not shown) in the groove punch member 62. Due to the location holes 40h, the assembling accuracy of the mounting board 2 and the brazing sheet 30 is improved.

When the formation of the meandering groove 41 and the outer peripheral groove 42 is completed, the press upper base 53 is raised and the grooved plate member 40 is removed. The primary molding substrate 80 is set again, and the grooved plate member 40 is molded repeatedly. Then, a predetermined amount of the grooved plate member 40 is completed. In addition,
The excess thickness of the meandering groove 41 is such that the upper surface of the meandering groove 41 can be substantially flush with the surface 80a of the primary molding substrate 80 during molding.

In the above-described embodiment, the meandering groove 41 and the outer peripheral groove 42 are formed by cold forging, but may be formed by hot forging depending on the forging equipment owned.

In the above-described embodiment, the cross-sectional shape of the outer peripheral groove forming portion 62c of the groove punch member 62 is, for example, trapezoidal, but the excess flow of the meandering grooves 41g and 41h and the later-described meandering groove 41 is controlled. If it can be prevented, it will not be trapezoidal.

In the above-described embodiment, the groove punch member 62 is connected to the meandering groove forming portion 62b and the outer peripheral groove forming portion 6b.
2c are integrated, but the meandering groove forming portion 62b and the outer circumferential groove forming portion 62c are separate parts, and while maintaining the state in which the outer circumferential groove 42 is first formed by the outer circumferential groove forming portion, the meandering groove forming portion 62b is thereafter formed. The groove 41 may be formed.

By doing so, the inclined portion 82 of the concave portion 81 is formed.
The surplus of the meandering grooves 41g and 41h formed in the
And the meandering grooves 41g and 41h can be formed to have a groove depth T1 with an undeformed groove cross-sectional shape, and the opening surfaces of the meandering grooves 41g and 41h can be made substantially flush.
The meandering groove 41 formed in the bottom surface portion 81a of the concave portion 81
f can be formed to have a groove depth T1 with a groove cross-sectional shape without deformation as in the above-described embodiment, and the opening surface of the meandering groove 41f can be made substantially flush.

In the above embodiment, the concave punch member 6
Although the concave portion 81 was formed in the substrate 70 of the grooved plate-like member 40 in Step 1, if the remaining thickness T3 is more than twice the groove depth T1 of the meandering groove 41 to be formed, the concave portion forming step is performed. It is not necessary to omit the recess 81 by omitting it.

In this way, even if the meandering groove 41 and the outer circumferential groove 42 are formed at the same time, the excess thickness of the meandering groove 41 to be formed can flow at the remaining portion of the thickness T3. The shape can be formed to the groove depth,
The opening surface of the meandering groove 41 can be made substantially flush.

Further, the groove punch member 62 is formed separately from the meandering groove forming portion 62b and the outer circumferential groove forming portion 62c. The meandering groove 41 may be formed at the portion.

In this way, the excess thickness of the meandering groove 41 is prevented by the flow of the excess thickness of the outer circumferential groove 42, so that the meandering groove 41 can be formed to have a groove cross-sectional shape without deformation and to the groove depth. The opening surface can be made substantially flush.

In the above embodiment, the outer peripheral groove 42
Is a rectangular and cut annular continuous groove, but an interrupted groove having a predetermined length may be continuously formed on the same line as the continuous groove. Further, another intermittent groove may be formed so as to be wrapped at a predetermined distance inside and outside the cut portion of each intermittent groove. Even if you do this,
It has the same effect as the outer peripheral groove 42 that is continuous in a square shape and a cut annular shape.

Next, a method of manufacturing the plate heat exchanger 10 using the completed grooved plate member 40 will be described.

The plate heat exchanger 10 is manufactured, for example, in a factory having a vacuum brazing furnace.

First, the mounting substrates 20, the brazing sheet 30, and the grooved plate member 40 are prepared in the number of plate heat exchangers 10 to be manufactured.

Then, for example, a long bolt (not shown) is inserted into each location hole 22 of the mounting board 20, and the brazing sheet 30 is inserted into the long bolt via each location hole 31. Next, each location hole 4
A laminated product of a pair of heat exchanger plate members 15 is inserted by inserting the grooved plate members 40 through 0h. Similarly,
A predetermined number of laminates are laminated. Then, a nut or the like (not shown) is screwed from the end of a long bolt protruding from the grooved plate member 40 of the last laminated product, and each laminated product is pressed.

Thereafter, it is placed in a vacuum brazing furnace and heated at a predetermined temperature for a predetermined heating time. Then, the tin and the like on both sides of the brazing sheet 30 of each laminated product are melted, and the tin and the like on the mounting substrate 20 are brazed to the back surface of the mounting substrate 20, and the tin and the like on the grooved plate-like member 40 are also removed. It is brazed to the surface 40a of the grooved plate-like member 40 and the substantially flush opening surfaces of the meandering grooves 41f, 41g and 41h. Thus, the mounting board 20, the brazing sheet 30, and the grooved plate-like member 40 are integrally brazed together to become a base member of the heat exchanger plate-like member 15.

After the elapse of the predetermined heating time, the furnace is taken out of the vacuum brazing furnace, the nut is removed from the end of the long bolt, and the long bolt is pulled out to complete a predetermined amount of each grooved plate member 40. I do.

Thereafter, a refrigerant injection pipe (not shown) is inserted into the filling groove 41a opened in the grooved plate member 40, and the refrigerant is injected from the filling groove 41a into the meandering groove 41.
The heat exchanger plate member 15 in which the refrigerant is sealed in the meandering groove 41 by closing the opening is completed. Then, the plate-like heat exchanger 10 is completed by mounting the semiconductor 21 on the mounting substrate 20.

As described above, by using the grooved plate-shaped member 40 in which the cross-sectional shape of the meandering groove 41 is uniform and the opening surface is substantially flush, the refrigerant sealed in the meandering groove 41 can be easily inserted into the meandering groove 41. Therefore, the heat-exchanging plate-like member 15 having good heat radiation efficiency can be obtained.

In the above embodiment, the grooved plate member 4
The heat exchanger plate-like member 15 (heat pipe) in which the refrigerant is sealed in the meandering groove 41 is a circulation groove, and the plate-like member for a heat exchanger has cooling water circulated in the circulation groove. It may be applied to uses other than the member (heat pipe).
In this case, the heat-radiating device can be used as a heat-radiating device.

Although the meandering groove 41 is formed on the surface 40a of the grooved plate member 40, the meandering groove 41 may be formed on the mounting substrate 20 and the mounting substrate 20 may be formed as a grooved plate member.
By doing so, the mounting substrate 20 can be omitted, and a plate member for a heat exchanger with improved heat radiation efficiency can be obtained.

The surface 40a of the grooved plate member 40
Although the meandering groove 41 is formed in the groove, the meandering groove may be formed on the front and back surfaces of the grooved plate member 40, and the meandering groove on the front surface may communicate with the meandering groove on the back surface. In this way, a heat exchanger plate-shaped member having twice the heat radiation efficiency can be obtained.

[0070]

As described above, according to the first aspect of the present invention, since the outer peripheral groove is formed immediately before or simultaneously with the periphery of the groove formed by forging on the surface of the plate member, the outer peripheral groove is formed in the plate member. Production of inexpensive grooved plate-shaped members that can prevent the excess flow of grooves flowing on the surface side of the surface and form grooves with a uniform cross-section and a uniform opening surface, and can form grooves in a short time by forging A method can be provided.

According to the second aspect of the present invention, after the concave portion is formed in the plate-like member, the outer peripheral groove is formed immediately before or simultaneously with the periphery of the groove to be formed by forging. A method for manufacturing an inexpensive grooved plate-like member that prevents excess flow of a groove and forms a groove having a uniform cross-sectional shape in a concave portion with a uniform cross-sectional surface, and can form a groove in a short time by forging. Can be provided.

According to the third aspect of the present invention, since the grooved plate-like member is used as a heat exchanger plate-like member for dissipating heat of the heating element, the grooved plate-like member formed by forging in a short time is used. An inexpensive method for manufacturing a plate member for a heat exchanger used as a plate member for a heat exchanger can be provided.

According to a fourth aspect of the present invention, since the volume of the concave portion is such that the upper surface of the groove is substantially flush with the surface of the plate member, the excess thickness of the groove satisfies the volume of the concave portion and the upper surface of the groove is Can be made almost flush with the surface.

According to the fifth aspect of the present invention, since the outer peripheral groove is formed intermittently on the same line, the outer peripheral groove prevents the excess flow of the groove flowing on the surface side of the plate-shaped member or in the vicinity of the outer peripheral groove. A groove having a uniform opening shape can be formed with a simple sectional shape.

According to the invention of claim 6, since the positioning hole is formed immediately after the formation of the groove, the positioning hole can position the groove with respect to the grooved plate member.

According to the seventh aspect of the present invention, since the material of the grooved plate member is a heat conductor having good heat conduction, a plate member for a heat exchanger having good heat radiation efficiency can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a plate heat exchanger of a semiconductor or the like using a grooved plate member according to the present invention as a heat exchanger plate member.

FIG. 2 is a perspective view showing a grooved plate-like member.

FIG. 3 is a cross-sectional view showing an AA cross section of the grooved plate member.

FIG. 4 is a cross-sectional view of a main part showing a press as an apparatus for manufacturing a grooved plate member.

FIG. 5 is a sectional view of a main part showing a die member and a concave punch member.

FIG. 6 is a sectional view of a main part showing a die member and a groove punch member.

FIG. 7 is a perspective view showing a substrate of a grooved plate member.

FIG. 8 is a perspective view showing a primary molded substrate of a grooved plate member.

FIG. 9 is a sectional view showing a BB section of the primary molded substrate.

FIG. 10 is a perspective view of each component constituting the plate heat exchanger.

FIG. 11 is an explanatory diagram illustrating an example of a plate member for a heat exchanger in a conventional plate heat exchanger.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 15 ... Plate member for heat exchangers 20 ... Mounting substrate of semiconductor etc. 21 ... Semiconductor etc. 30 ... Brazing sheet 40 ... Plate member with groove 41 ... Groove (meandering groove) 42 ... Outer peripheral groove 50 ... Press machine 54 ... Die member 61 ... concave punch member 62 ... groove punch member 70 ... substrate (plate-like member) 70a ... surface of plate-like member 80 ... primary molded substrate 81 ... concave portion

Claims (7)

(57) [Claims] 1. A consists of a meandering groove forming step of forming by forging a meandering channel on the surface of the plate-shaped member, the outer peripheral groove forming step of forming a circumferential groove by forging around the meandering channel, the peripheral groove forming step Is performed immediately before or simultaneously with the meandering groove forming step to form a grooved plate-shaped member. Wherein said meandering groove forming step, according to claim 1, characterized in that forming said serpentine groove in the recess after the recess forming step of forming the recesses in the surface of the plate-like member A method for manufacturing a grooved plate member. 3. The grooved plate member according to claim 1, wherein the grooved plate member is used as a heat exchanger plate member for radiating heat of a heating element. Production method. 4. The volume according to claim 2, wherein the volume of the recess is such that the upper surface of the meandering groove can be made substantially flush with the surface when the meandering groove is formed. A method for manufacturing a grooved plate member. Wherein said outer peripheral groove, the manufacture of the grooved plate member according to any one of claims 1 to 4, characterized in that the cutting unit on the same line are formed intermittently formed Method. 6. The positioning device according to claim 1, wherein said grooved plate-like member forms a positioning hole immediately after forming said meandering groove.
A method for manufacturing a grooved plate-shaped member according to any one of claims 3 to 3. 7. The method of manufacturing a grooved plate member according to claim 3, wherein the material of the grooved plate member is a heat conductor having good thermal conductivity.