JPS6026754A - Connection of roof material made of stainless steel plate - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for joining roofing materials made of stainless steel sheets, in which side edges of the roofing materials made of stainless steel sheets are formed and joined by soldering to prevent infiltration of rainwater, etc. It is related to.

Traditionally, asphalt and Portland cement have been used as waterproofing methods for roofs of concrete structures.

Construction methods using various materials such as synthetic resin 2 and synthetic rubber have been devised, and generally, as shown in FIG. 1, an asphalt waterproof layer 11 is laminated on a concrete slab 1.
A method of waterproofing is used by connecting waterproof concrete 12 with expansion joints 16. However, in this construction method, asphalt materials are sensitive to ultraviolet rays and heat, and concrete is prone to cracking, causing problems in the durability of both materials and causing water leaks. In order to solve this problem, a waterproofing method in which stainless steel plates are joined by seam welding has recently been increasingly used in large-area structures. However, this method
Although it is durable, it has high construction costs, is not common, requires advanced welding technology, and the equipment is expensive.
There were problems that made construction difficult for small-scale sheet metal companies.

The present inventors conducted various studies to solve the above problems, and as a result of considering durability, cost, workability, etc., the present inventors formed the side edges of a stainless steel plate and soldered the side edges. The present invention was completed by discovering that the above problems could be solved by adhesion.

That is, in the present invention, a solder clamping part that clamps solder and a suppressing part that abuts each other are continuously raised on the adjacent side ends of each of the stainless steel sheet roofing materials to be joined to each other, and the solder Solder is continuously held between the clamping parts, the solder clamping part is heated, the molten solder is filled into the solder clamping part of the stainless steel roofing material, and then the stainless steel roofing materials are watertightly joined together by cooling. The present invention provides a method for joining stainless steel sheet roofing materials.

Hereinafter, the method for joining stainless steel plate roofing materials according to the present invention will be further explained based on the drawings.

Fig. 2 is an explanatory diagram of an embodiment of a roof constructed by the method of joining stainless steel plate roofing materials according to the present invention, and Fig. 6 is an illustration of an example of a roof constructed by the method of joining stainless steel plate roofing materials according to the present invention. A cross-sectional view showing an example of a state in which solder is sandwiched between the roofing members and the roof material is placed on a concrete slab. FIG. FIG. 5 is a sectional view showing the state of the embodiment shown in FIG. 6 after completion of joining.

In the drawing, 1 is a concrete slab that constitutes the base of the roof, and 2 IT is made of stainless steel plates whose side ends are erected at the factory or construction site, placed on the concrete slab 1, and joined to each other by soldering. It is a roofing material, and the thickness of this roofing material 2 is preferably 0.1 to 11 mm.

The reason for setting the plate thickness to 0.1~1rn& is that if it is less than Q, imx-, there will be problems with strength, and if it exceeds 1rn&, it will require a great deal of force to process the side edges, and the heat of stainless steel will increase. This is because it is difficult to control the temperature of the solder paste sandwiched between the stainless steel plate roofing material 2 due to its low conductivity. Reference numeral 2a denotes a solder clamping part which is provided by upright processing at the side end of the roof material 2 in order to clamp the solder 6 in a continuous state, and is heated by the heating burner 4 after the solder 6 is clamped. As shown in FIG. 6, 2a has a part that clamps the solder 6 and a lower part of the part that clamps the solder that is inclined upward at a small angle θ (preferably within 15 degrees) with respect to the horizontal plane, so that the solder 6 is It is preferable to have a structure having an L-shaped cross-sectional shape, which has a solder joint part that expands the joint area by spreading the molten solder horizontally without causing it to flow down due to capillary action when melted, as shown in FIG. 6. The solder clamping part 2a of one roofing material 2 is extended upward and bent as shown in FIG. 5 after soldering, thereby covering the upper part of the solder clamping part 2a and preventing rainwater from entering the solder clamping part 2a. 2d does not change the gist of the present invention.Instead of the heating burner 4, a heater using an electric heater may be brought into contact with both sides of the solder clamping part 2a to heat it. In addition to linear solder as shown in the drawing, strip-shaped solder can also be used as the continuous solder 6, but even when granular solder is melted and pressed, voids may be created between the solder clamping parts 2a. The strength of the joint is high,
It is difficult to ensure watertightness, which is undesirable. 2b c) The side end of the roof material 2 is raised up together with the solder clamping part 2a so as to be continuous with the lower part of the solder clamping part 2a, and the solder 6 sandwiched between the solder clamping parts 2a is heated by the heating burner 4. When the solder 6 is melted, it is pressed by the pressure rollers 5 from both sides.This is a suppression part that is brought into contact with each other by the pressure rollers 5 to prevent the melted solder 6 from flowing down. It is more preferable that the deformation absorbing portion 2c with a diagonal linear or arcuate cross section is provided, since it can absorb the expansion and contraction of the stainless steel plate roofing material 2 due to temperature changes.

As described above, the suppression row 25 presses the pressing portions 2b of the roofing material 2 from both sides to bring the pressing portions 2b of the roofing material 2 into contact with each other, narrowing the distance between the side edges of the roofing material 2, and joining by soldering. It also serves to widen the surface 1fR and increase the bonding strength. Therefore, it is preferable that the lawn support member 5a is always pressed by the roller pressing spring 5b so that the pressing roller 5 can obtain a constant pressing force. Although there is only one roller 5 on each side of the suppression part b in FIG. 4, it is preferable that there be a plurality of rollers if possible, and furthermore, the roller 25 is made of a copper alloy material with good thermal conductivity. It is preferable to use it because it can also promote the solidification of the solder. Reference numeral 6 denotes a hose for injecting cooling water or air to the solder clamping portion 2a in order to cool and solidify the molten solder 6, and a heating burner 4. Pressing roller 5. It is preferable if the hose 6 is set on one trolley because the work becomes much more complicated.

As described above, the method for joining stainless steel roofing materials according to the present invention involves raising the adjacent side ends of the stainless steel roofing materials to be joined together, and soldering the parts between the side ends. Since it is a joining method, it is not susceptible to ultraviolet rays and heat like asphalt material, or cracks like concrete, and does not require special technology or expensive equipment, so it can be used for small-scale sheet metal work. It is a method that can be carried out even by a trader, and is extremely easy to install from an industrial perspective.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of an embodiment of a conventional roof structure of a concrete structure, FIG. 2 is an explanatory diagram of an embodiment of a roof constructed by the method of joining stainless steel plate roofing materials according to the present invention, and FIG. The figure shows the concrete roof 2 with solder sandwiched between the roofing materials made of stainless steel sheets, with the side edges being raised up.
Fig. 4 is a cross-sectional view showing an example of the state in which the solder is sandwiched between the roofing material made of stainless steel plate, which is heated, suppressed, and
A perspective view illustrating the method of cooling and joining, Figure 5 and Figure 6.
FIG. 3 is a cross-sectional view showing the state of the illustrated embodiment after completion of joining. 1. Concrete slab 2. Stainless steel plate roofing material 2a. Solder clamping portion 2b. Suppressing portion 2c. Deformation absorbing portion 2d. Bending portion 6. Solder 4. Heating burner 5. Pressure 0. −． 7 5a... Roller support material 5b - Roller pressure spring 6 - Hose 11... Asphalt waterproof layer 12... Waterproof concrete 16... Expansion joint patent applicant Nisshin Steel Co., Ltd. Figure 1 Figure 2 Figure 4 Figure 5

Claims (1)

[Claims] 1. A solder clamping part that clamps the solder and a pressing part that is brought into contact with each other are successively raised at the adjacent side ends of each of the stainless steel plate roofing materials to be joined to each other. The solder is sandwiched in a continuous state, the solder sandwiched portion is heated, the molten solder is filled into the solder sandwiched portion of the stainless steel sheet roofing material, and the solder sandwiched portion of the stainless steel sheet roofing material is cooled, thereby joining the stainless steel sheet roofing materials in a water-tight manner. A method for joining stainless steel roofing materials.