JPS60106633A - Manufacture of plate type heat pipe container - Google Patents

Abstract

PURPOSE:To manufacture a plate type heat pipe container easily and efficiently by providing plural fluid passages in the body of plate type container, and after grinding partition walls at the end of the fluid passages by a grinding tool, sealing the end of the body of the container. CONSTITUTION:Aluminium material is formed by extrusion and plural partition walls 2 are provided in parallel on the inside and the body 1 of a plate type container provided with plural fluid passages 3 is obtained. The body 1 of the container is fixed by a jig, etc., and a discoid cutter 11 having thickness nearly equal to the height of the fluid passages and provided with grinding teeth 12 on the outer peripheral face is advanced while rotating around a rotation shaft 13 to grind the partition walls 2 at the end of the body of the container. At the same time, end parts of both side walls 1a of the body of the container 1 are ground to form an arcuate end part communicating passage 14 in the fluid passages 3. After retreating the cutter 11, the end part of the body 1 of the container is press worked and sealed, and a plate type heat pipe container is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for manufacturing a flat heat-quip container having a plurality of fluid passages therein.

[Technical background of the invention and its problems]

Conventionally, when manufacturing flat plate heat-nip containers,
The method shown in FIGS. 1(A) and 1(B) is used.

1 is a flat container body obtained by extrusion molding of aluminum material, and inside this is a plurality of partition walls 2...
A plurality of fluid passages 3... are formed by. Then, end caps 4, 4 are fitted to the ends of the container body 1 in order to exhaust the fluid passages 3 of the container body 1 and seal in the heat medium, and to improve heat retention performance. Each of the fluid passages 3... is communicated with each other, and an arm 5 for evacuation and sealing is attached to one end cap 4 of the fluid passages 3.

However, as mentioned above, when the end characters F4.4 are fitted to both ends of the container body 1, there is a step at the end, which is inconvenient when inserting the heat pipe into another object and making it stick tightly. In addition, when welding the end caps 4, 4, fillet welding must be performed on the thin walled portions.
The work was troublesome.

1. As a means for communicating each fluid passage 3 at the end of the container body 1, as shown in FIGS. There is also a method of welding the end plate 7 to the end of the container body l after grinding the partition wall 2 at the end of the main body l, but the grinding process and welding work are troublesome and cause an increase in cost. There is.

Furthermore, as mentioned above, the tool 6 such as an end mill is
As shown in Figures (A) and (B), after grinding both sides of the container body 1 along with the partition wall 2 by moving in the direction of the arrow, the end of the container body 1 is press-formed, and then, There is also a method of overlaying the periphery of the end, but this method is also difficult to weld and increases the number of steps as described above.

Further, as shown in FIGS. 4A and 4B, a tool 6 such as an end mill is moved in the direction of the arrow as shown in FIG. There is also a method of grinding, press-forming the end, and then welding the periphery of the end, but when press-forming the container body 10
Cracks may appear near both side walls.

[Purpose of the invention]

This invention was made in view of the above-mentioned circumstances, and its purpose is to make it possible to easily and efficiently process the communicating end portion of a flat container body, and to make it suitable for mass production. The present invention aims to provide a method for manufacturing a flat heat pipe container.

[Summary of the invention]

In this invention, the partition wall at the end of the container body is cut by a grinding tool until t'+! is characterized in that the end portions of each fluid passage are made to communicate with each other by grinding into an arc shape, and then the end portions are sealed to form an end communication portion of the fluid passage at the end of the container body.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Since the structure of the container body 1 of the disc-shaped heat/mother plate is the same as that of the conventional one, the same number will be given and the explanation will be omitted, and the process order of the manufacturing method will be explained. 5 and 6, reference numeral 11 denotes a disc-shaped cutter as a grinding tool, which has a wall thickness that is approximately equal to the height of the fluid passage 3 formed by the partition wall 2 of the container body 1. , cutting teeth 12 are formed on its outer peripheral surface. This disc-shaped cutter 11 is attached to a rotating shaft 13 of a drive motor (not shown) and is movable in the direction of the arrow. When the disc-shaped cutter 1 is moved forward while rotating with the container body 1 fixedly held by a jig or the like, the partition wall 2 at the end of the container body 1 is cut and , both sides of the container body 1 are ground simultaneously. Therefore, an arc-shaped end communication portion 14 is formed at the end of the container body 1. After grinding the end of the container body 1 to a predetermined depth with the disc-shaped cutter 1, the disc-shaped cutter 1 is retreated,
Next, when the end portions of the container body I are pressed, the ends of the container body 1 are joined as shown in FIG.

Then, when the joints of the container body 1 are butt welded, the end communication portion 14 is sealed, and each fluid passage 3.
... will communicate at the end communication portion 14.

In the above embodiment, the container bodies 1 are ground one by one using the disc-shaped cutter 11Vc, but as shown in FIG. A disc-shaped cutter 11 is set and faces the disc-shaped cutter 11...
By laminating the container bodies 1 through the spacers 15, it is possible to simultaneously grind a plurality of container bodies 1 in the same grinding direction as in the above-mentioned embodiment, and the grinding can be carried out efficiently.

Further, although a disc-shaped cutter 1 is used as the grinding tool, the invention is not limited to this, and a disc-shaped grinding wheel, a chainsaw, or other grinding tool may be used.

〔Effect of the invention〕

As explained above, the present invention grinds the partition wall at the end of the container body into a substantially circular arc shape by relatively moving the grinding tool back and forth to connect the ends of each fluid passage, and then seals the ends. By stopping and forming the end communicating portion, the grinding time can be shortened and efficiency can be improved. Furthermore, by cutting both end walls of the container body at the same time and then sealing them by pressing, it is possible to prevent cracks during pressing and also to facilitate welding.

[Brief explanation of drawings]

1 to 4 show different conventional examples, (A) is a perspective view, (B) is a sectional view thereof, and FIGS. 5 to 7 show one embodiment of the method of the present invention. So, the fifth
The figure is a partially cutaway front view of the machined state, Fig. 6 is an enlarged sectional view of the end communication section, Fig. 7 is a perspective view of the end after being press-formed, and Fig. 8 is the present invention. FIG. 3 is a perspective view showing another embodiment of the invention. DESCRIPTION OF SYMBOLS 1... Container main body, 2... Partition wall, 3... Fluid passage, 1... Disk-shaped cutter (cutting tool), 14... End communication part.

Claims (2)

[Claims] (1) Grinding the partition wall at the end of a flat container body in which a plurality of partition walls are arranged in parallel to form a plurality of fluid passages by relative movement of a grinding tool and the container body; a first step of communicating the ends of each fluid passage;
A method for manufacturing a flat heat pipe container, comprising a second step of pressing an end of the container body and then sealing it to form an end communication portion of the fluid passage. (2) A method for manufacturing a flat heat/IP IG container according to claim 1, characterized in that a plurality of grinding tools are stacked, and each partition wall of the stacked container body is simultaneously ground. .