JPS6251711B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seam welding method for a joint portion of a coated metal envelope, which enables smooth initial seam welding of the joint portion of a coated metal envelope. .

BACKGROUND ART Recently, there has been active research and development into coated metal envelopes that are watertight and airtightly constructed by seam welding (resistance welding) coated metal materials (mainly stainless steel materials) to the inner and outer surfaces of structures. In the coated metal envelope, the rising portions of the coated metal materials formed on the main plate are overlapped with each other to form a joint portion by seam welding. For seam welding, since joints are generally long, a self-propelled seam welding machine is used to improve efficiency and to weld to a uniform height. Therefore, when the seam welding machine is used to seam weld the rising parts of both coated metal materials and is run from the end of the rising part, the sliding base plate that supports the seam welding machine is moved from the tip of the rising part. Even if you configure it so that it curves upward, it will get stuck on the edge of the main plate,
If the main plate was damaged or jammed, the position of the electrode roll would shift, making it impossible to perform seam welding at the desired position. These drawbacks occur at the beginning of the rising end of the seam welding operation. This initial work had an extremely high failure rate even for highly skilled workers. Then, it is possible to work from a place other than the end of the rising part, but in order to seam weld the entire length, the seam welding machine must be reversed, which greatly reduces work efficiency. It was hot.

Therefore, in the work of seam welding the rising parts of the coated metal materials that formed the rising parts of the main plate, the guide plate with the V-shaped notch is placed so as to cover the edge of the main plate. The V-shaped notch is inserted into the ends of both rising parts, and then a seam welding machine with a sliding base plate is placed on the guide plate, pressure is applied from the ends of both rising parts with both electrode rolls, and the electrode rolls are driven. By seam welding both rising parts, the sliding base plate of the seam welding machine slides on the guide plate, and the V-shaped notch holds both rising parts and the sliding The moving bed plate does not get stuck at the end of the main plate at all, and both electrode rolls bite into it well, making it possible to perform seam welding at an extremely accurate position on the rising edge, making it possible to start seam welding smoothly, and by extension, seam welding. This improves work efficiency and solves the above-mentioned drawbacks.

The method will be explained with reference to the drawings. A is the outer enclosure of the structure, such as walls, roofs (rooftops), floors, etc., and may be new or existing. In addition, the outer enclosure A
It consists of steel-framed concrete (see drawings), concrete blocks, steel frames, deck plates, wooden structures, etc. B is a long plate or a plate thickness of appropriate length that can be seam welded (approximately 0.2 m/m to approximately 1 m/m)
The main plate 1 is made of a coated metal material (for example, stainless steel, etc.), and rising portions 2, 2 of about 2 cm to about 8 cm are formed on both sides of the main plate 1 in the width direction. The covering metal material B constituted by the rising portions 2, 2 of the main plate 1 is formed by integrally forming a coiled steel plate using a roll forming machine or the like. The covered metal material B is brought into contact with the inner or outer surface of the outer enclosure A, and a movable hanger 3 is attached to the rising portion 2 on one side of the covered metal material B and fixed to the outer enclosure A with bolts or the like. The movable tongue pieces 5 are superimposed. A plurality of movable hangers 3 are provided at appropriate intervals in the longitudinal direction of the rising portion 2. The movable hanger 3 is constructed by having a movable tongue piece 5 slidably provided in the hanger main body 4 through a long hole, etc.
sticks to. Next, the rising portion 2 on the other side of the adjacent covering metal material B is superimposed on the rising portion 2 on one side of the preceding covering metal material B, and at the same time, the movable tongue piece 5 is held between them. At this time, the clamping portion may be spot welded. A guide plate 6 is made of a relatively thin metal material, and has a V-shaped notch 7 formed on one side thereof. Then, the V-shaped notch 7 of the guide plate 6 is inserted into the longitudinal ends of the rising parts 2, 2 to sandwich the ends of the rising parts 2, 2, and at the same time, the guide plate 6 is used to The coated metal materials A and A are placed so as to cover the main plates 1 and 1 (see Fig. 2). Reference numeral 8 is a self-propelled seam welding machine, and a sliding base plate 9 that supports the main body is fixed to the lower part of the machine, and electrode rolls 1 are mounted on the left and right sides of the lower front side of the machine.
0 and 10 are provided so as to be drivable. The pressing force of the electrode rolls 10, 10 is adjustable, and the electrode roll 10 is configured to allow current to flow in accordance with the plate thickness, material, etc. A cooling device is provided at the bottom of the main body. The seam welding machine 8 with the sliding base plate 9 is connected to the guide plate 6.
The electrode rolls 10, 10 are driven while applying pressure from both ends of the rising portions 2, 2, and a current is applied to start the seam welding operation (see Fig. 3). Then, the expansion joint 11 is formed by seam welding near the upper ends of both rising parts 2 (in the case of spot welding, below these) (see the left side of FIG. 1 and FIG. 4). The expansion joint portion 11 is formed so that rising portions 2, 2 on the lower side of the seam welded portion gradually open as they move downward (see the drawing). The upper end of the expansion joint part 11 may be left as is (see the drawing), or the upper end may be folded downward to form a folded part. By repeating these steps one after another, a covered metal enclosure is constructed by seam welding.

Next, the effects will be explained. In the present invention, the guide plate 6 in which the V-shaped notch 7 is formed is placed so as to cover the edges of the main plates 1 and 1.
into the two ends of the rising parts 2, 2, and then place the seam welding machine 8 with the sliding base plate 9 on the guide plate 6,
Pressure is applied to both electrode rolls 10, 10 from the ends of both rising parts 2, 2, and the sliding of the seam welding machine 8 is performed by seam welding both rising parts 2, 2 while driving the electrode rolls 10, 10. Since the base plate 9 slides on the guide plate 6, the sliding base plate 9 does not touch the end of the main plate 1 at all, and the end of the main plate 1 can be prevented from being damaged. Furthermore, since jamming can be prevented, the seam welding position by the electrode roll 10 can be accurately determined from the beginning. Therefore, the initial seam welding can be performed extremely smoothly using the guide plate 6 without requiring any special skills. Moreover, the fact that the V-shaped notch 6 is fitted into the two ends of the rising parts 2 and 2 means that the two ends of the rising parts 2 and 2 are held between the electrode rolls 10 and 2.
10 is made good, and the start of seam welding can be made even smoother. As described above, the seam welding from the two ends of the rising portion 2 can be smoothly performed at the correct position, while the seam welding from the ends must be performed many times in order to construct the coated metal envelope. , the seam welding work efficiency can be greatly improved, and the work cost can be significantly reduced. Further, the method of the present invention has a great feature in that the seam welding operation can be performed with high efficiency simply by using an extremely simple structure and an inexpensive guide plate 6.

Note that the guide plate 6 can also be applied to a self-propelled folding machine.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the guide plate and the coated metal envelope, Fig. 2 is a perspective view of the guide plate placed on the edge of the coated metal material during the implementation of the present invention, and Fig. 3 is the implementation of the present invention. FIG. 4 is a perspective view of a joint formed according to the present invention. B...Coated metal material, 1...Main plate, 2...Rising portion, 6...Guide plate, 7...V-shaped notch, 8...
Seam welding machine, 9...Sliding base plate, 10...Electrode roll.

Claims (1)

[Claims] 1. In the work of seam welding the rising parts of the coated metal materials that formed the rising parts of the main plate, a guide plate with a V-shaped notch formed therein was placed so as to cover the edge of the main plate, and the V-shaped notch was The seam welding machine with a sliding base plate is placed on the guide plate, pressure is applied from the ends of the rising part with both electrode rolls, and while driving the electrode rolls, the seam welding machine with a sliding base plate is placed on the guide plate. A seam welding method for a joint part in a coated metal enclosure, characterized by seam welding the joint part.