JP3992399B2 - Ceramic end tab for welding - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a ceramic end tab for welding, and more particularly to a ceramic end tab for welding provided with a mark that can correspond to the thickness of a weld base material.
[0002]
[Prior art]
Conventionally, two welding base materials 10 and 11 are brought into contact with each other as shown in FIG. 6 , and welding end tabs 1i are illustrated at both ends of the welding groove 16 as shown in FIG. 7 without using a backing material. There are known methods of fixing and welding with no retainer. However, the conventional welding end tab 1i used in the above-described welding method is difficult to align because there is no mark that can correspond to the thickness of the weld base materials 10 and 11. However, since there were few weldings by the said welding method, the end tab for welding suitable for the said welding method was not developed.
[0003]
Also, as shown in FIG. 8 , side plates 15 are placed on both sides of the flange 14 of the beam 13 so as to prevent cracks in the welded portion of the column 12 and the beam 13 even when a large load is recently applied due to an earthquake or the like. A joining method has been developed. In this construction method, the flange 14 and the side plate 15 are abutted and the welding ceramic end tab is fixed and welded without using a backing material, but positioning is easy as a welding ceramic end tab used for that purpose. There has been a demand for the development of a ceramic end tab for welding that does not have a ceramic end tab for welding and is easy to align.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide a ceramic end tab for welding that can be easily aligned even when welding is performed without using a backing material.
[0005]
[Means for Solving the Problems]
In order to solve the above problem, the ceramic end tab for welding of the present invention has a surface 4 in contact with one welding base material and a surface 5 in contact with the other welding base material provided with a groove. A molten metal receiving portion 3 that is one step lower than the surface 5 in contact with the other welded base metal provided at the tip is provided at two positions above and below, and a mark 2b that can correspond to the thickness of the welded base metal . 2c, 2bm, and 2cm are provided.
[0006]
Furthermore, in order to solve the above-mentioned problems, in the welding ceramic end tab of the present invention, the left and right and front and back surfaces of the welding ceramic end tab are the same or similar or mirror-symmetric.
In order to solve the above-mentioned problem, in the welding ceramic end tab of the present invention, the welding ceramic end tab is the same or similar in the left and right and the front and back, or mirror-symmetrical, and upside down. It is to be.
In order to solve the above-mentioned problem, in the ceramic end tab for welding according to the present invention, an angle formed between the surface 4 in contact with one welding base material and the surface 5 in contact with the other welding base material provided with a groove. The angle θ is obtuse.
In addition, in order to solve the above-mentioned problems, the use of the ceramic end tab for welding provided with marks 2b, 2c, 2bm, and 2cm that can correspond to the thickness of the welding base material is used for the side plate to the beam to be welded to the steel column. Is for welding.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The configuration and operation of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view of a ceramic end tab for welding according to an embodiment of the present invention, FIG. 2 is a ceramic end tab for welding according to another embodiment of the present invention, and FIG. 3 is a perspective view of a ceramic end tab for welding according to another embodiment of the present invention, and FIG. 4 is a ceramic end tab for welding according to another embodiment of the present invention. FIG. (B) is a plan view, and (c) is a right side view .
[0008]
The present invention, mark 2b to accommodate the thickness of the welding base material, 2c, 2BM, is a welding ceramic end tab 2cm is provided, the mark 2b, 2c, 2BM, 2cm is as shown in FIG. 1 In the state of use, it is provided on one side of the position visible from the outside or on both sides as shown in FIG. 2, etc. If it is provided on both sides, it may be provided in a different position or in a similar position. Also good.
Further, the marks are drawn by slits ( see 2a and 2am in FIG. 9 ) , grooves 2b and 2bm as shown in FIG. 1, protrusions 2c and 2cm as shown in FIG. 2, or printing (not shown). Such as a line.
[0009]
The landmarks slit bets, grooves 2b, 2BM, projections 2c, 2 cm, etc., as a reference of at least the alignment position 2BM, provided 2 cm, are preferably used position 2BM as a reference for alignment, 2 cm and One or more are provided at positions 2b and 2c corresponding to the thickness of the possible weld base material, and may be as short as shown in FIG. 3 , as shown in FIGS. You may provide long. The mark 2bm provided at a position serving as a reference of alignment, 2cm is large to be distinguished from other marks, for example, 2cm 2, large or as 2bm in FIG. 3, preferably thicker. Further, the shape of the grooves 2b and 2bm and the protrusions 2c and 2cm of the mark may be triangular, semicircular as shown in FIGS. 1 and 2, etc. The shape may be sufficient.
[0010]
The mark 2b, 2c, 2BM, welding ceramic end tabs for attaching a 2 cm, even of 1b provided bottom 7 as shown in FIG. 1 in the molten metal receiving portion 3, the molten metal receiving portion 3 as shown in FIG. 2 A deformed V-shaped one with a bottom and one provided on the top and bottom and the front and back, or one provided only on the surface, as shown in FIG. 1, there is no V-shaped vertical weir 8 with the molten metal receiving part 3 deformed, The one having the bottom 7 is provided on the front and back surfaces 1b or provided only on the front surface.
[0011]
In addition, as shown in FIG. 3 , the welding ceramic end tab for marking has an obtuse angle θ between the surface 4 in contact with one welding base material and the surface 5 in contact with the other welding base material provided with a groove. to be those provided in the mirror symmetrical to the upper and lower surfaces 5 where molten metal receiving portion 3 in contact with the other of the welding base material, welding the other also GMA on the back side are provided as shown in FIG. 4 The surface 5 in contact with the base material 11 is also provided with the molten metal receiving portion 3. These welding ceramic end tabs 1g, the angle θ between the surface 5 in contact with one face 4 and the other welding base material in contact with the welding base material of 1h, may be a 135 degrees as shown in FIG. 4, 120 °, It may be 90 degrees. The welding ceramic end tabs 1g and 1h are suitable for use when welding the side plate 15 on both sides of the flange 14 of the beam 13 above and below.
[0012]
Further, the welding ceramic end tab to be marked has a shape as described above in which the molten metal receiving portion 3 on the back surface is turned upside down from the molten metal receiving portion 3 on the front surface as shown in FIG. Gas which is not shown in the shape of the molten metal receiving part 3 on the back surface of the molten metal receiving part 3 having a shape which is mirror-symmetrical with the molten metal receiving part 3 on the surface and upside down. As shown in FIG. 1 and FIG. 2 and the like, a boundary surface 6 between the molten metal receiving portion 3 and the weir 8 is provided with a punched hole, an inclined surface (not shown) having the above shape. is etc. also the name of was in a tapered shape.
[0013]
Next, an example of use of the ceramic end tabs for welding of the present invention with reference to FIG.
When the side plates 15 are welded to the upper and lower sides of the flange 14 of the beam 13 to be welded to the column 12, the side plate 15 is fixed to the side of the flange 14 by a method not shown, and is similar to the ceramic end tab 1h for welding. Mark 2bm is the center of the thickness of the side plate of the ceramic end tab 1j for welding, the upper mark 2b is the upper surface of the side plate, and the lower mark 2b is the lower surface of the side plate. Is fixed with a fixing tool (not shown). Similarly, a welding ceramic end tab 1k similar to the welding ceramic end tab 1d (see FIG. 9) is fixed to the opposite side of the welding groove in the same manner as the welding ceramic end tab 1j, and then the welding groove 16 is welded. Similarly, the opposite and lower welding grooves 16 are welded.
[0014]
【The invention's effect】
According to the present invention, since the ceramic end tab for welding has the above-described configuration, even when welding is performed without using a backing material, an excellent effect is obtained in that the positioning becomes easy.
[Brief description of the drawings]
FIG. 1 is a perspective view of a ceramic end tab for welding according to an embodiment of the present invention.
[2] In another embodiment the ceramic end tab for the welding of the present invention, is a perspective view of (a) front side perspective view and (b) back side.
FIG. 3 is a perspective view of a ceramic end tab for welding according to another embodiment of the present invention.
FIG. 4 is a welding ceramic end tab according to another embodiment of the present invention, in which (a) is a front view, (b) is a plan view, and (c) is a right side view.
FIG. 5 is a perspective view for explaining a method of using the welding ceramic end tab of the present invention.
FIG. 6 is a view for explaining a method of matching two welding base materials and welding them without using a backing material.
FIG. 7 is a perspective view for explaining a conventional welding method in the case as shown in FIG . 6 ;
FIG. 8 is a perspective view for explaining a method of joining side plates on both sides of a flange of a beam to be welded to a column.
FIG. 9 is a perspective view of a welding ceramic end tab used for explaining the configuration and usage of the welding ceramic end tab of the present invention, and is a reference view .
[Explanation of symbols]
Ceramic end tab for 1b, 1c, 1g to 1k welding
2a ~ 2c, 2 am~2cm
3 Molten metal receiving part
4 Surface in contact with one weld base material
5 Surface in contact with the other weld base metal
6 Interface between molten metal receiving part and weir
7 Bottom
8 Weir
10 One weld base material
11 Weld base metal on the other side
12 pillars
13 Beam
14 Flange
15 Side plate
16 Weld groove

Claims (5)

A surface having a surface (4) in contact with one weld base material and a surface (5) in contact with the other weld base material provided with a groove, and in contact with the other weld base material provided with a groove (5) On the side, the molten metal receiving part (3) is provided at two places on the upper and lower sides, and marks ( 2b, 2c, 2bm, 2cm ) that can correspond to the thickness of the welded base metal are provided. A ceramic end tab for welding.   2. The ceramic end tab for welding according to claim 1, wherein the ceramic end tab for welding has the same or similar or mirror-symmetrical shape on the left and right and front and back.   2. The ceramic end tab for welding according to claim 1, wherein the left and right and front and back surfaces of the welding ceramic end tab are the same or similar or mirror symmetrical, and are upside down.   The angle (θ) between the surface (4) in which the ceramic end tab for welding is in contact with one welding base material and the surface (5) in contact with the other welding base material in which a groove is provided is an obtuse angle The ceramic end tab for welding according to any one of claims 1 to 3.   5. The welding ceramic end tab for welding a side plate (15) to a flange (14) of a beam (13) to be welded to a steel column (12). The ceramic end tab for welding according to any one of the above.

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