JPH0641750Y2 - End tab - Google Patents

Description

[Detailed Description of the Invention] <Industrial field of application> The present invention, in the groove welding, forms excess metal deposits on both sides of the groove between the butt welded steel and the welded steel. About the end tab to do.

<Prior Art> In groove welding used for butt welded joints and T-welded joints, etc., in order to form extra bulges on both sides of the groove,
The end tabs shown in FIGS. 3a and 4a are used.

As shown in FIGS. 3a and 3b, when the butt welding of the H-shaped steel material 1 as the welded steel material is performed on the surface of the steel material 2 to be welded, the shape of the groove portion 3 generally has a concave shape. An inclined step portion 4 is formed on the side surface of the end tab B so as to substantially match with.

Therefore, as shown in the drawing, the step portion 4 of the end tab B is brought into close contact with the slope of the end surface 1a in the width direction of the H-shaped steel material 1 so that the step portion 4, the side surface of the end tab B and the surface of the steel material 2 to be welded 2 A groove portion 6a surrounded by can be formed, and if a weld metal is poured into this portion, a swell can be formed in the inner surface shape of the groove portion 6a. At this time, the backing metal 7 is in close contact with the bottom of the groove 6a to prevent leakage of the deposited metal from below.

Further, as shown in FIGS. 4a and 4b, the end surface 2a of the welded steel material 2 is
, The end tab C used at this time is substantially aligned with the widthwise end face 1a of the H-shaped steel material 1, the end tab C used at this time is a stepped portion 8 inclined so as to substantially match the shape of the groove-shaped groove portion 3, It has a step portion 9 along the corner portion 2b of the welded steel material 2.

Thus, the step portion 8 of the end tab C having the step portions 8 and 9 is closely adhered along the inclination of the end face 1a of the H-shaped steel material 1, and the step portion 9 of the end tab C is connected to the corner portion 2b of the welded steel material 2. By making them adhere closely along the steps 8, end tabs C
A groove 6b surrounded by the side surface and the stepped portion 9 can be formed, and if a weld metal is poured into this portion, a surplus can be formed on the inner surface shape of the groove 6b. At this time, the backing metal 7 is in close contact with the bottom of the groove 6b to prevent leakage of the deposited metal from below.

<Problems to be Solved by the Invention> As described above, conventionally, the abutting portion of the welded steel material such as the H-shaped steel material 1 and the welded steel material is different from the end tab to be used on the surface side and the end surface side of the welded steel material. 2 because the shapes are different
There was a problem that it was necessary to prepare various types of end tabs, which made parts management and construction work complicated.

The present invention has been made to solve the above inconvenience,
It is an object of the present invention to provide an end tab in which a butted portion of a welded steel material and a welded steel material can be used on both the front surface side and the end surface side of the welded steel material.

<Means for Solving the Problems> The present invention has been made in view of the above objects, and its gist is to provide a weld metal on both sides of a groove between a welded steel material and a welded steel material that are butted against each other. A first and a second step portion that substantially match the inclination of the groove portion to form a surplus of
End tabs having third step portions formed along the corners of the steel material to be welded on both side surfaces, wherein an end surface in the width direction of the welded steel material is located inside the end surface of the steel material to be welded. In this case, the first step portion is brought into close contact with the end surface of the groove portion that is inclined, whereby the first step portion is formed.
Of the step portion, the end tab side surface and the surface of the welded steel material constitute a first groove portion for forming an excess of the deposited metal, and the end surface in the width direction of the welded steel material is the end surface of the welded steel material. When the second step portion is in close contact with the end surface of the inclined groove portion and the third step portion is in close contact with the corner of the steel material to be welded, The second step portion, the side surface of the end tab, and the third step portion form an end tab that constitutes a second groove portion for forming an excess of the deposited metal.

<Example> An end tab according to the present invention will be described with reference to FIGS. 1 and 2. The members having the same functions as those of the end tabs B and C described above are designated by the same reference numerals to avoid redundant description.

In the figure, the end tab A has a substantially rectangular shape, and on both opposite side surfaces thereof, a step portion 4 that substantially matches the slope of the groove 3 of the groove portion 3 and a step portion that is spaced apart from the step portion 4 are provided. Step 8 formed substantially parallel to the portion 4 and the corner of the steel material 2 to be welded
2b and a step portion 9 formed along the line 2b.

As shown in Fig. 1, the actual usage is as follows.
When the butt welding of the H-shaped steel material 1 as the welded steel material is performed on the surface of, the end surface of the end of the end tab A is pressed against the surface of the steel material to be welded, and the end surface 1a in the width direction of the H-shaped steel material 1 is inclined to By closely adhering the step portion 4 along the side (see FIG. 3b), a groove portion 6a surrounded by the step portion 4, the side surface of the end tab A and the surface of the steel material 2 to be welded can be formed,
If a weld metal is poured into this portion, an extra swell can be formed on the inner surface of the groove 6a. At this time, below the groove 6a,
The backing metal 7 is in close contact with the backing metal 7 to prevent leakage of the deposited metal from below.

Further, as shown in FIG. 2, the end surface 2a of the steel material 2 to be welded is
When the end surface 1a of the H-shaped steel material 1 is substantially coincident with the end surface 1a of the H-shaped steel material 1, the end tab A is inverted by 180 ° in the direction shown by the arrow a (FIG. 1), and the stepped portion 8 of the end surface 1a of the H-shaped steel material 1 is By closely contacting along the slope and by closely contacting the step portion 9 from the outside along the corner 2b of the steel material 2 to be welded (see FIG. 4b),
A groove portion 6b surrounded by the step portion 8, the side surface of the end tab A and the step portion 9 can be formed, and if a weld metal is poured into this portion, a swell can be formed on the inner surface shape of the groove portion 6b. At this time, the backing metal 7 is in close contact with the bottom of the groove 6b to prevent leakage of the deposited metal from below.

The step portions 4 and 8 shown in the present embodiment are inclined according to the shape of the groove portion, but the invention is not limited to this. In addition to this, a groove portion such as a root gap determined at the design stage is also used. If the shape and inclination of the step portions 4 and 8 are matched with the above shape in advance, it can be used for the shape of other groove portions.

<Effect> According to the end tab of the present invention, the first and second step portions that substantially match the inclination of the groove portion and the third step portion that is formed so as to follow the corner portion of the steel material to be welded And 1 for each
We adopted a configuration that is provided on both sides of one end tab.

Therefore, when the end surface of the welded steel material in the width direction is located inside the end surface of the welded steel material, the first step portion is brought into close contact with the end surface of the inclined groove portion, The first step portion, the side surface of the end tab, and the surface of the steel material to be welded can form first groove portions that project outward on both left and right end surfaces of the groove portion. When the end face in the width direction of the welded steel material substantially coincides with the end face of the welded steel material, the second step portion is brought into close contact with the end surface of the inclined groove portion, and the third By bringing the stepped portion into close contact with the corner of the steel material to be welded, the second stepped portion, the end tab side surface, and the third stepped portion projecting outward at the left and right end surfaces of the groove portion. Can be formed.

As described above, the end tab of the present invention is formed by both side surfaces of one end tab even if the abutting portion of the welded steel material and the welded steel material is the front surface side of the welded steel material or the abutting portion is the left side surface or the right side surface. Since the second groove portion can be used to form a deposit of the deposited metal in the first groove portion area, the complexity of component management and construction work can be eliminated.

[Brief description of drawings]

FIG. 1 is a perspective view showing a method of using the end tab A when the end face in the width direction of the welded steel is located inside the end face of the welded steel, and FIG. 2 is the end face in the width direction of the welded steel and the end face A. Fig. 3a is a perspective view showing how to use the end tab A when the end faces of the welded steel are substantially coincident with each other, Fig. 3a is a perspective view showing how to use the conventional end tab B, Fig. 3b is its side view, and Fig. 4a is conventional. FIG. 4b is a side view showing the usage of the end tab C of FIG. 1 ... H-shaped steel material (welded steel material), 1a ... end surface, 2 ... welded steel material, 2a ... end surface, 2b ... corner portion, 3 ... groove portion, 4 ...
... step portion (first step portion), 6a ... groove portion (first groove portion), 6b ... groove portion (second groove portion), 8 ... step portion (second groove portion)
Step portion), 9 ... step portion (third step portion).

Claims (1)

[Scope of utility model registration request] 1. A first and a first portion which substantially coincide with the inclination of the groove portion to form excess metal deposits on both sides of the groove portion between the steel materials to be welded and the welded steel material which are butted against each other. And the third step formed so as to be along the corner of the steel material to be welded
An end tab having a step portion on each side and a widthwise end surface of the welded steel material located inside the end surface of the welded steel material, the first step portion is inclined. By making close contact with the end surface of the groove portion, the first step portion, the end tab side surface and the surface of the steel material to be welded constitute a first groove portion for forming a swell of the deposited metal, When the end surface of the welded steel material in the width direction substantially coincides with the end surface of the welded steel material, the second step portion is in close contact with the end surface of the inclined groove portion, and the third step portion By closely adhering to the corner of the steel material to be welded, the second step portion, the side surface of the end tab, and the third step portion form a second groove portion for forming an excess of the deposited metal. An end tab that is characterized by: