JPH1077715A - Manufacture of long honeycomb panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a long honeycomb panel simply and at a low cost by plating both ends of a honeycomb core formed by piling corrugated aluminum plates in an ultrasonic immersion method, and sandwiching it with long and short zinc galvernized steel plates and heating them so as to be welded. SOLUTION: Both end faces 21 of a honeycomb core 2 formed by piling many corrugated aluminum plates are soldered by an ultrasonic immersion method. Many honeycomb cores 2 are arranged contacting with each other while contacting the one side end faces 21 of the honeycomb cores 2 with the zinc galvernizing 61 of a long zinc galvernized steel plate 6, and short zinc galvernized steel plates 7 are placed on the other side end faces 21 while contacting them with the zinc galvernizing 71. The honeycomb cores 2 sandwiched with the zinc galvernized steel plates 6, 7 are heated by a heater 8, the soldering of the honeycomb cores 2 and the zinc galvernizing 61, 71 of the zinc galvernized steel plates 6, 7 are joined together by melting, and hence a long honeycomb panel 9 is manufactured.

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 long honeycomb panel in which an arbitrary number of short honeycomb panels are connected.

[0002]

2. Description of the Related Art A conventional general method for manufacturing a honeycomb panel is as follows. That is, the brazing sheet is processed into a wavy shape, and a plurality of the brazing sheets are laminated to produce a honeycomb core. The honeycomb core 100 is sandwiched between two aluminum plates 101 from both end surfaces as shown in FIG. In this state, it is placed in a vacuum furnace and heated to 600 ° C. or higher. As a result, the brazing material of the brazing sheet constituting the honeycomb core 100 is melted, and the brazing sheet itself is joined to each other, and the brazing material that has slightly flowed out from the honeycomb core 100 to the end face side is used to form the honeycomb core 100 and the aluminum plate 101. Are joined,
The honeycomb panel 102 as shown in FIG. 9 is obtained.

However, the conventional method has the following disadvantages. Since the size of the furnace was limited, the size of the obtained honeycomb panel 102 was limited. Then, in order to manufacture a long honeycomb panel, for example, as shown in FIG. 10, an edge of the honeycomb panel 102 is processed, and the two honeycomb panels 102 are butt-welded at the processed portion 103. I was That is, in order to obtain a long honeycomb panel, the honeycomb panel 102 needs to be worked and welded, which is troublesome.

[0004] The aluminum plate 101 may be warped due to heating at a high temperature in a furnace, and it is necessary to use a thick aluminum plate 101 to prevent warping. Contrary.

An object of the present invention is to provide a manufacturing method capable of obtaining a long honeycomb panel which is inexpensive and lightweight with a simple operation.

[0006]

According to the method for manufacturing a long honeycomb panel of the present invention, an ultrasonic vibration is applied to both end surfaces of a honeycomb core made of an aluminum member by dipping the end surfaces in a molten solder for an aluminum member. By adding, the process of forming the solder plating and the zinc plating of the long galvanized steel sheet, while arranging a number of honeycomb cores with the solder plating formed close to each other with one end face abutting, A short galvanized steel sheet is provided on the other end face of each honeycomb core by abutting the galvanized steel sheet, and the honeycomb core sandwiched from both sides by the galvanized steel sheet is heated to solder the honeycomb core. And a step of joining the honeycomb core and the galvanized steel sheet by melting the galvanized steel sheet and the galvanized steel sheet. It is a symptom.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A manufacturing method according to the present invention will be described with reference to FIGS. First, as shown in FIG. 1, a large number of aluminum plates 1 processed into a wave shape are prepared.

Next, the corrugated aluminum plates 1 are superimposed as shown by the arrows in FIG. 1 to produce the honeycomb core 2 shown in FIG.

[0009] Next, as shown in FIG.
Is immersed in a solder for aluminum members in a molten state, for example, 95% Zn-5% Al eutectic solder 3, and ultrasonic vibration is applied to the honeycomb core 2 or the solder bath 4. Specifically, for example, the temperature of the solder 3 is 420 ° C.
The frequency of the ultrasonic vibration to be applied is about 18 kHz. If the honeycomb core 2 is simply immersed in the solder 3, an oxide film is formed on the wall of the honeycomb core 2, so that the solder 3
Although the solder plating is repelled and the formation of solder plating becomes insufficient, in the present invention, since the ultrasonic vibration is applied, the oxide film is destroyed, and the wettability between the wall of the honeycomb core 2 and the solder 3 is improved. As shown in FIG. 4, the solder plating 5 is favorably formed on the end face 21 of the honeycomb core 2. In addition,
Similarly, for the other end face 21 of the honeycomb core 2,
The solder plating 5 is formed.

Then, through the operation shown in FIG. 5, a long honeycomb panel is manufactured. FIG. 6 is a perspective view of the operation of FIG. In FIG. 5, 6 is a long galvanized steel sheet, 7 is a short galvanized steel sheet, and 8 is a heater. The operation of FIG. 5 is as follows. That is, a large number of honeycomb cores 2 are arranged in contact with one end face 21 of the honeycomb core 2 in contact with the zinc plating 61 of the long galvanized steel sheet 6. At the same time, a short galvanized steel sheet 7 is provided on the other end face 21 of the honeycomb core 2 with the galvanized steel sheet 71 abutting thereon. Then, the honeycomb core 2 sandwiched from both sides by the galvanized steel sheets 6 and 7 is heated by the heater 8, and the solder plating 5 of the honeycomb core 2 and the zinc plating 6 of the galvanized steel sheets 6 and 7 are heated.
The honeycomb core 2 and the galvanized steel sheets 6 and 7 are joined by melting 1,1. The heating temperature is specifically about 400 ° C. Thereby, a long honeycomb panel 9 is obtained.

Immediately after the solder plating 5 of the honeycomb core 2 and the zinc plating 61, 71 of the galvanized steel sheets 6, 7 are heated and melted, as shown in FIG. 7, ultrasonic vibration is applied via the horn 10a. May be added to the galvanized steel sheet 7. 10b is an ultrasonic transducer, and 10c is a guide roller.

Also, as a component of the honeycomb core 2, an aluminum alloy plate may be used instead of the aluminum plate 1.

[0013]

As described above, according to the method for manufacturing a long honeycomb panel of the present invention, the following effects can be obtained.

(1) A solder plating 5 is formed on the honeycomb core 2 by an ultrasonic immersion method, and a large number of honeycomb cores 2 are arranged on a zinc plating 61 of a long galvanized steel sheet 6 and a short galvanized steel sheet 7 is formed. The work is extremely simple, since it is only provided and heated.

(2) Since the galvanized steel sheets 6 and 7 are inexpensive, the resulting honeycomb panel 9 is also inexpensive.

(3) Since the heating temperature is lower than the case where a brazing material is used, there is no possibility that the galvanized steel sheets 6 and 7 will warp. Since it can be used, the weight of the obtained honeycomb panel 9 can be reduced.

(4) Since the solder plating 5 is formed on the honeycomb core 2 by the ultrasonic immersion method, the solder 3 also penetrates into the gaps between the aluminum plates 1 constituting the honeycomb core 2, and the aluminum plates 1 also cross each other. Joined to. For this reason, the strength of the honeycomb core 2 can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one step of the manufacturing method of the present invention.

FIG. 2 is a perspective view showing a honeycomb core obtained through the steps of FIG.

FIG. 3 is a perspective view showing a step that follows the step of FIG. 1;

FIG. 4 is an enlarged perspective partial view showing a honeycomb core on which solder plating is formed in the step of FIG. 3;

FIG. 5 is a side view showing a step following the step shown in FIG. 3;

FIG. 6 is a perspective view showing a step of FIG. 5;

FIG. 7 is a perspective view showing a step that may be adopted after the step of FIG. 5;

FIG. 8 is a perspective view showing one step of a conventional method for manufacturing a honeycomb panel by brazing.

FIG. 9 is a partially cutaway perspective view showing the honeycomb panel obtained through the process of FIG.

FIG. 10 is a partial perspective view showing one step of a conventional method for manufacturing a long honeycomb panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Aluminum plate 2 Honeycomb core 21 End surface 3 Solder 5 Solder plating 6,7 Galvanized steel plate 61,71 Zinc plating

Claims (1)

[Claims] 1. A step of forming a solder plating on both end faces of a honeycomb core made of an aluminum member by immersing the end faces in a molten aluminum member solder and applying ultrasonic vibration thereto; On the galvanized steel sheet, a number of honeycomb cores formed with solder plating are arranged side by side with one end face in contact with each other, and a short galvanized steel sheet is placed on the other end face of each honeycomb core. The honeycomb core is sandwiched between galvanized steel sheets, and the honeycomb core is sandwiched between both sides by heating to melt the solder plating of the honeycomb core and the zinc plating of the galvanized steel sheet. And a step of joining a galvanized steel sheet to a long honeycomb panel.