KR20160053416A - Support Device of Ends for Butt Joint Welding - Google Patents

Abstract

The present invention relates to a support device of ends for welding, which can reduce a protruding bead on ends remaining after welding by enabling a reverse side material to form a reverse side bead and an end tap attached to the ends to become one body. According to an aspect of the present invention, a support device of ends for welding comprises: a support unit (110) of which at least a portion is in contact with a reverse side of a welding base material (10) of a butt joint welding portion; and a side surface unit (120) of which at least a portion is in contact with a side surface of the welding base material (10) in the vicinity of the butt joint welding portion. Moreover, the support unit (110) and the side surface unit (120) may be integrated.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a butt joint welding apparatus,

[0001] The present invention relates to a supporting device mounted on an end portion of a butt welding portion, more particularly, to a butt welding portion for preventing welding defects, which are likely to occur at the start portion and the end portion of a welding bead, The present invention relates to an end support apparatus.

Butt welds are welds that join together the facing weld metal. Butt welding can be performed by welding methods such as gas metal arc welding (GMAW), flux cored arc welding (FCAW), gas tungsten arc welding (GTAW), and covered metal arc welding (SMAW). At this time, when one side welding is performed, an iron plate or a ceramic backing material is attached to the back side corresponding to the opposite side of the arc to easily obtain the back side bead. In addition, end taps can be attached to the end surface of the end portion of the welded portion to prevent welding defects that may occur at the start and end portions of the weld.

Conventionally, a method of extending a grooved steel plate on the end face side of the welded part by attaching the steel plate to the welded part, and then removing the extended steel plate after welding. Another method is to fix a ceramic end-tab having a groove similar to a welding groove with a heat-resistant tape, attach an extended steel plate to the lower part of the ceramic end tap so as to prevent molten metal from flowing down, . At this time, when the welding is finished, protruding beads are formed at the starting portion and the end portion side surface. Therefore, after the welding is finished, the ceramic end tab is removed, and the lower extension plate and the projecting bead are cut and removed.

However, in the prior art, the side protruding beads at the end portion of the tail are removed mainly by carbon arc gouging, noise, dust, and metal spatter due to gouging may occur, thereby causing air pollution to become serious.

In addition, in the prior art, it is necessary to allow the ceramic end tabs and the lower extended steel plates to be attached to each other, and after the welding, the ceramic end tabs are removed and the projected beads of the finished ends and the lower extended steel plates are cut, .

Korean Patent No. 10-0359257 (issued on Nov. 11, 2002) Korean Patent Publication No. 10-2010-0013211 (2010.02.09. Disclosed) Korean Patent Publication No. 10-2011-0077613 (Published July 7, 2011) Korean Patent No. 10-1141005 (Bulletin of May 2, 2012) Korean Registered Patent No. 10-1320207 (issued October 23, 2013) Korean Registered Patent No. 10-1398443 (Announced 2014.05.28) Korean Registered Patent No. 10-1423617 (Announcement of July 28, 2014) Korean Utility Model Registration No. 20-0354860 (Bulletin of June 30, 2004)

It is an object of the present invention to provide a welding end support device capable of reducing the protruding bead of the welding end portion remaining after welding by allowing the backing material for forming the backside bead and the end tap attached to the welding end portion to be one body do.

A welding end supporting apparatus according to an aspect of the present invention includes: a supporting unit 110 at least a portion of which is in contact with a back surface of a welding base material 10 of a butt weld; And a side surface portion 120 at least partially in contact with the side surface of the welding base materials 10 in the vicinity of the butt weld portion, and the receiving portion 110 and the side surface portion 120 can be formed integrally.

The receiving portion 110 and the side portion 120 may be made of a material including copper or copper.

The side part 120 may be provided with a side groove 121 forming a space with the butt weld.

A side surface groove 121 is formed in the side surface portion 120 to define a space between the side surface portion 120 and the butt weld portion and a width of a surface of the side surface groove 121 facing the welding portion may be larger than a width of the butt weld portion have.

Wherein a width of a side surface of the side groove (121) facing the welding base material (10) is smaller than a width of a side surface of the side groove (121) Can be made larger than the distance between the welding base material (121) and the welding base material (10).

A support groove 111 may be formed along the weld line of the welded portion so that a stable back bead is formed on the back surface of the support portion 110. [

The side part 120 further includes a side groove 121 forming a space with the welding base material 10 and an insertion member 140 located at least a part of the inner surface of the side groove 121 .

The welding end supporting device according to another aspect of the present invention includes a supporting portion 110 at least a portion of which is in contact with the back surface of the welding base materials 10 of the butt weld portion and at least a portion of the welding base materials End tapped fixing means 200 for supporting the end tap 100 including the side portion 120 in contact with the side surface of the base 110 and the side portion 120 integral with the base 110 by the magnetic force to the welding base materials 10 .

The end tab fixing means 200 is spaced apart from each other by a predetermined distance and supports the end tab 100 therebetween and the side surface portion 120 of the end tab 100 is in close contact with the side surfaces of the welding preforms 10 (Not shown).

The magnets 210 are accommodated in such a manner that the magnets 210 are replaceable by being built-in or inserted / extracted, and the magnets 210 are welded to the welds 10 And a case 220 for separating the base materials 10 from each other.

The case 220 may include a ceramic material or a ceramic material.

An empty space may be provided in the case 220 between the magnets 210 and the welding base materials 10.

The magnets 210 are heated to a temperature not more than the heat resistant temperature of the magnets 210 or a position farther than a position satisfying the Rosenthal's equation based on the heat resistance temperature of the magnets 210, It can be arranged to fall away from the arc.

The magnets 210 may be arranged to be separated by 15 +/- 2 mm or more from the arc generated at the time of welding.

The end-tapped fastening means 200 includes a pair of cases 220 separately accommodating the respective magnets 210 therein, and a pair of end- And a lower surface support member 230 for supporting the tab 100.

The end tap fastening means 200 includes a pair of cases 220 separately accommodating the respective magnets 210 therein and both ends of the end fittings 220 mounted on the respective cases 220, And an elastic member 240 for providing an elastic force to adhere the side surface portion 220 of the end tab 100 to the side surface of the welding base material 10.

The elastic member 240 may be a line spring or a leaf spring.

According to another aspect of the present invention, there is provided a welding end supporting apparatus comprising at least a support part (110) at least a part of which is in contact with a back surface of a welding base material (10) of a butt weld part, And a side surface portion 120 which is provided in an area opposite to a side of the side surface portion 120 in contact with the welding base materials 10 and which is in contact with the side surface portion 120 And a heat dissipation unit 130 for absorbing and discharging heat.

At least one or a plurality of heat dissipating holes 131 having a shape penetrating the upper and lower surfaces or at least one or a plurality of heat dissipating holes having a shape penetrating both side surfaces or at least one or a plurality of And may include heat dissipation holes.

A plurality of the side portions 120 may be formed so as to protrude in a pin shape from the opposite side of the side contacting the welding base materials 10 or may be spaced apart from the side of the side surface portions 120 in contact with the welding base materials 10 And a plurality of heat radiating fins 132 protruding in a pin shape from the upper surface, the lower surface, or the side surface of the heat radiating fin 132.

A plurality of the side portions 120 may be provided so as to protrude in a plate shape from the opposite side of the side contacting the welding base materials 10 or may be spaced apart from the side of the side portion 120 in contact with the welding base materials 10 And a plurality of heat dissipating plates 133 protruding in a plate shape from an upper surface, a lower surface, or a side surface of the region.

According to another aspect of the present invention, there is provided a welding end supporting apparatus comprising a support portion 110 at least a portion of which is in contact with a back surface of a welding base member 10 of a butt weld portion, (10) of the end part (120) of the end tab (100) including the side part (120) integrated with the receiving part (110) And a heat pipe 150 disposed on the side portion 120 to absorb and discharge heat from the side portion 120 through the circulation of the working fluid.

The heat pipe 150 may be disposed such that one side thereof contacts the side part 120 and extends in a direction away from the side part 120. [

The one side may have a thickness similar to that of the side portion, and the other side may have a thickness thinner than the one side.

The heat dissipating unit 130 or the heat pipe 150 may be removably and tightly mounted to the side surface 120. [

A spatula blocking member 160 may be provided between the heat pipe 150 and the welding base material 10 to block at least a part of the spatters generated during a welding operation.

According to the present invention, the back bead for forming the backside bead and the end tab attached to the end portion are formed as one body, so that the protruding bead of the end portion remaining after welding can be reduced to easily remove the lead bead.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be interpreted.
1 is a perspective view schematically showing an end tap fixed to a welding base material by an end tap fixing means in a butt welding end supporting apparatus according to an embodiment of the present invention.
Fig. 2 is a perspective view schematically showing the end-tab of Fig. 1;
3 is a graph schematically showing the temperature distribution near the welded portion by the Rosenthal equation.
4 is a perspective view schematically showing a state in which the end tap is fixed to the welding base material by the end tap fixing means in the butt welding end supporting device according to another embodiment of the present invention.
5 is a perspective view schematically showing an end tap according to another embodiment of the present invention.
6 is a perspective view schematically illustrating an end tap according to another embodiment of the present invention.
7 is a perspective view schematically illustrating an end tap according to another embodiment of the present invention.
FIG. 8 is a perspective view schematically showing an end tap with a heat pipe fixed to a welding base material by an end tap fixing means in a butt welding end supporting device according to an embodiment of the present invention.
9 is a perspective view schematically showing an end tap equipped with the heat pipe of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

1 shows an end tap 100 fixed to a welding base material by an end tap fixing means 200 in a butt welding end supporting apparatus according to an embodiment of the present invention. FIG. 2 shows the end-tab 100 of FIG. Fig. 3 shows an embodiment of the temperature distribution in the vicinity of the welded portion by the Rosenthal equation.

Referring to the drawings, a butt welding end supporting apparatus according to an embodiment of the present invention includes a pair of welding base members 10 that are attached to each other on an extension line of a weld line at a start portion and / Attachment of the end tab 100 can prevent welding defects that may occur at the beginning and / or end of the weld bead.

The end tab 100 may include a receiving portion 110 and a side portion 120. At least a portion of the receiving portion 110 can be in contact with the rear end of the welding base materials 10 of the butt weld portion. At least a portion of the side portion 120 may be in contact with the side surface of the weld metal materials 10 in the vicinity of the butt weld portion. At this time, the receiving part 110 and the side part 120 may be integrated. In this case, it is possible to make the projecting beads easier to remove by shortening or shortening the side projecting beads remaining at the start portion and / or the end portion after welding, and shortening the removal time of the projecting beads, .

Also, the receiving portion 110 and the side surface portion 120 may be made of a material including copper or copper. In this case, since the end tap 100 is made of a material including copper or copper, the heat transmitted from the end tap 100 can be rapidly discharged due to the thermal conductivity of the copper, so that the end tap 100 Can be quickly cooled down. Therefore, after the welding, the end tab 100 can be easily separated from the projected bead by extending the weld bead, thereby improving workability.

Further, the side surface portion 120 may be provided with a side groove 121 which forms a space with the welded portion before welding. The side grooves 121 may be provided such that a space between the welding base materials 10 on the extension of the weld line is on an extended line. Thus, by filling the side groove 121 with molten metal at the beginning and / or the end of the weld line, defects that may occur at the start portion and / or the end portion can be prevented.

At this time, the butt welding end supporting apparatus according to an embodiment of the present invention improves the shape of the side groove 121 so that the side projecting beads remaining on the start portion and / or the end portion after welding are made small or short , The protruding bead can be easily removed, the removal time of the protruding bead can be shortened, and the working time can be shortened.

The width of the side surface of the side groove 121 facing the weld may be greater than the width of the butt weld or the weld seam. In this case, it is possible to make the projecting beads easier to remove by shortening or shortening the side projecting beads remaining at the start portion and / or the end portion after welding, and shortening the removal time of the projecting beads, .

The side grooves 121 may be formed such that the width of the surface facing the welding base materials 10 is larger than the distance between the side grooves 121 and the welding base material 10. In this case, it is possible to make the projecting beads easier to remove by shortening or shortening the side projecting beads remaining at the start portion and / or the end portion after welding, and shortening the removal time of the projecting beads, .

The receiving portion 110 may be provided with a receiving groove 111 along the weld line of the welded portion so that a stable backside bead is formed at the end of the back surface of the welding base materials 10. At this time, the support groove 111 may be formed in the shape of a groove in the longitudinal direction along the weld line of the portion of the support portion 110, which is formed integrally with the side portion 120, in contact with the welding base materials 10. In this case, by forming the back bead according to the shape of the receiving groove 111, a stable back bead can be formed at the end of the weld line.

On the other hand, the insertion member 140 may be positioned on at least a part of the inner surface of the side groove 121. The insertion member 140 may be formed in a shape that can prevent the welding arc from being directly in contact with the main body of the end tap 100 during welding. Accordingly, the insertion member 140 prevents the welding arc from directly contacting the main body of the end tap 100 at the start and end of welding, thereby preventing the main body of the end tab 100 from melting by the welding arc .

The body of the end tab 100 may include a receiving portion 110 and a side portion 120.

The insertion member 140 may be formed in a shape such that the molten metal flowing out from the welding portion at the time of welding is not in direct contact with the body or the side groove 121 of the end tap 100. The insertion member 140 prevents the body of the end tab 100 from contacting the molten metal flowing into the side flaps 121 during welding so that the body of the end tab 100 is separated from the end tab 100 Can be prevented from melting.

Accordingly, the insert metal 140 can be easily separated from the weld bead after the welding, and the end tap 100 can be reused, thereby achieving economical efficiency.

At this time, the insertion member 140 may be located on the inner surface of the side groove 121 or on the entire inner surface or a part thereof. The insertion member 140 may be prepared in advance according to the shape of the inner surface of the side groove 121 and inserted into the side groove 121. At this time, the side groove 121 may be provided with a space and / or a position where the insertion member 140 can be disposed. For this purpose, additional grooves may be provided in the side grooves 121. Therefore, the insertion member 140 can be easily attached and detached, and workability can be improved.

Meanwhile, the butt welding end supporting apparatus according to an embodiment of the present invention includes the end tap fixing means 200 so that the end tap 100 is welded to the welding base members 10 by the end tap fixing means 200, And / or fixed by a magnetic force. In this case, the end tab 100 can be easily fixed before the welding, by supporting and / or fixing the end tab 100 by using the magnetic force, and after the welding, the end tab 100 ) Can be easily fixed, the working time can be shortened, and the workability can be improved.

At this time, since the end tap fixing means 200 supports and / or fixes the end tap 100 by using a magnetic force, the end tap 100 and the supporting member on the lower surface thereof are fixed by taping work, A separate additional process may be omitted. In addition, a separate and additional process for removing the end tab 100 and the support member on its underside can be omitted after welding. Therefore, the working time can be shortened and the workability can be improved.

Particularly, when the end tab 100 integrally formed with the receiving portion 110 and the side portion 120 is detached and attached by a magnetic force, the process of attaching and detaching the end tab 100 can be simplified and facilitated.

The end tap securing means 200 includes a pair of end tabs 100 spaced from each other by a predetermined distance and supporting the end tab 100 therebetween and closely fitting the side portions 120 of the end tab 100 to the sides of the weld base materials 10. [ Magnets 210 may be included. A pair of magnets 210 support the end tab 100 therebetween and can hold and fix the end tab 100 in close contact with the welded portion of the welded base materials 10. [ Therefore, by utilizing the pair of magnets 210, the end tab 100 can be easily fixed and / or separated.

At this time, as the magnets 210, magnets of a type and size that can have a magnetic force enough to support and / or fix the end tab 100 to the welded portion can be used. For example, special magnets such as cobalt magnets with sufficient magnetism and strong against heat can be used. At this time, a special magnet capable of withstanding a high temperature of 300 ° C or higher can be used for the magnet 210.

The end tab fastening means 200 is accommodated in such a manner that the magnets 210 can be inserted or inserted / withdrawn to be replaced therein and the magnets 210 are inserted into the magnets 210 And a case 220 that separates the base material 210 from the weld metal materials 10. The case 220 may prevent direct transfer of heat from the weld metal 10 or weld arc during welding to the magnets 210. Therefore, the case 220 can prevent the magnets 210 from being damaged by heat.

At this time, the case 220 may include a ceramic material or a ceramic material. The case 220 is formed using a ceramic material so that heat can be effectively prevented from being transmitted from the outside to the magnet.

As another example, a void may be provided between the magnets 210 and the weld metal materials 10 inside the case 220. [ The space between the magnets 210 inside the case 220 and the welding base materials 10 can more effectively block heat from being transmitted to the magnets from the outside.

On the other hand, the magnets 210 are separated from the arc generated at the welding at a position below the heat-resistant temperature of the magnet 210, or at a position farther from the position satisfying the Rosenthal equation on the basis of the heat- . Therefore, it is possible to prevent the magnets 210 from being damaged by the heat transmitted from the welding base materials 10 or welding arc to the magnets 210 at the time of welding. For this purpose, the magnets 210 may be arranged to be at least 15 +/- 2 mm away from the arc that occurs during welding.

The case 220 can be manufactured so that two magnets 210 can be built in or inserted / withdrawn so as to be respectively attached to the cross sections of two mutually adjacent welding base materials 10 for welding. The case 220 may be made of a heat shielding material including ceramic to protect the magnet 210 by cutting off heat generated during welding, so that the magnet 210 does not come into direct contact with the welding base material 10. At this time, a special magnet such as a cobalt magnet capable of withstanding a high temperature of 300 ° C at maximum can be used for the magnet 210.

In this case, it is preferable that the magnets 210 are attached to a region of 300 DEG C or less when they are attached to the welding base material 10 according to the characteristics of the magnets. This is because the results are calculated on the basis of the Rosenthal formula Can be attached so as to be at least about 20 5 mm or more away from the weld bead. Here, the Rosenthal equation is an equation for analyzing the movement of the heat source using the heat quantity and the welding speed.

(T: the limit temperature of the magnet, T _0: temperature of the original workpiece (pre-heating temperature, K), K _s : Heat conductivity (J / mmKs), Q: the welding power (I * V, Watt) and, α _s: thermal diffusion coefficient ^{(mm 2 / s), U} : distance from the heat source: welding speed (mm / s), R (√ (x ² + y ² ), x: distance in the direction of welding, y: distance perpendicular to the direction of welding)

From the equation (1), the temperature distribution near the welded part is calculated by setting the limit temperature of the magnet to 300 DEG C, and the following equation (2) is derived, and the graph of FIG. This is an example in which T is set to 300 캜, Q is fixed to 10 kW, and U is set to 6.2 mm / s. In the graph of FIG. 3, the point (0, 0) is the starting point of the welding to the point where the arc first occurred, and the point (0,140)

At this time, the portion at 300 ° C at the starting point of the welding may be about 10 mm around the point, and the portion at about 300 ° C at the end point of the welding can be 7 to 8 mm or less around the periphery. Thus, the magnet 210 can be attached at least 10 ± 2 to 3 mm or more from the weld bead, and stably to be at least 20 ± 5 mm or more apart.

On the other hand, the magnet 210 may be disposed so as to be separated by at least 15 +/- 2 mm from the arc generated at the time of welding. To meet this requirement, the case 220 can be arranged so that the magnets 210 are separated from the arc by at least about 20 +/- 5 mm or more from the weld bead, at least 15 +/- 2 mm, .

The end-tapped fastening means 200 may include a pair of cases 220 separately accommodating respective magnets 210 therein. Each of the magnets 210 can be accommodated separately in the pair of cases 220. [ That is, the case 220 is formed as a pair of mutually short-circuited, and the end tab 100 can be positioned therebetween. At this time, the end tab 100 can be fixed by an attractive force between the magnets 110 in the case 220. Thus, the end tab 100 can be easily fixed and / or detached.

On the other hand, the end-tapped fastening means 200 is mounted on each of the cases 220 at both ends so as to be elastically deformed to provide an elastic force for bringing the side portions 220 of the end taps 100 into close contact with the side surfaces of the weld- Member 240 as shown in FIG.

At this time, the case 220 is brought into close contact with the welding base materials 10 by the magnetic force acting between the magnets 210 accommodated in the case 220 and the welding base materials 10, The elastic member 240 can be used to secure the end tab 100 to the welded joints 10 by using the forces acting on the welded joints 10 by the cases 210 while supporting the end tabs 100 between the end tabs 100, ) Direction. Therefore, the elastic member 240 makes it possible to more stably support and / or attach the end tab 100 to the weld base materials 10.

At this time, the elastic member 240 may be a line spring or a leaf spring. The elastic members 240 of the line spring or leaf spring are supported and / or fixed to the case 220 at both ends thereof so that the intermediate portion thereof can elastically contact the end tab 100 in the direction of the weld metal materials 10 . Accordingly, it is possible to provide a structure that can elastically support the end tab 100 while the elastic member 240 is effectively supported by the case.

The end tap 100 can be supported and / or fixed to the welding base materials 10 by the end tap fixing means 200 in the butt welding end supporting device according to the embodiment of the present invention. To this end, the end-tab fastening means 200 includes a pair of magnets 210 spaced apart with the end tab 100 therebetween, a case 220 housing the magnets 210, And an elastic member 240 attached to the end tabs 220 to elastically contact the end tabs 100 in the direction of the welding base materials 10.

The length of the end tab 100 in the weld line direction may be greater than the length of the weld line direction of the case 220 so that the end tab 100 protrudes further backward than the case 220 as shown in the drawing. In this case, both ends of the elastic member 240 are fixed to both sides of the cases 220 so that the middle portion of the elastic member 240 can elastically press the rear surface of the end tab 100 toward the weld base materials 10 So that it is possible to efficiently form a structure having the above structure.

Fig. 4 shows a state where the end tap 101 is fixed to the welding base materials 10 by the end tap fixing means 200 in the butt welding end supporting device according to another embodiment of the present invention. Here, although the butt welding end support device shown in the drawings has the same or similar function as the butt welding end support device shown and described in Figs. 1 to 3, And detailed description thereof will be omitted.

Referring to the drawings, the endtap fastening means 200 may include a bottom support member 230 connecting between the cases 220 and supporting the end tab 101 thereon. Therefore, it is possible to easily support the load acting on the end tab 101 downward by the lower surface support member 230, so that the end tab 101 can be stably supported and / or attached to the welding preforms 10 .

In this case, the magnets 210 can be inserted or inserted / withdrawn into the case 220 on both sides, and the case 220 (see FIG. 2) can be supported by the lower surface support member 230 to support the lower surface of the end tab 101 Can be connected. At this time, the end tab 101 may be mounted on the lower surface support member 230 so as to be removably attached thereto. In this case, it is possible to support the end tap 101 in a stable manner by supporting the end tap 101 with a load acting downward by the lower surface support member 230, It becomes possible to attach it.

In this case, in the butt welding end supporting apparatus, the end tap 101 can be supported and / or fixed to the welding base materials 10 by the end tap fixing means 200. To this end, the end-tab fastening means 200 includes a pair of magnets 210 arranged to be spaced apart with the end tab 101 therebetween, a case 220 housing the magnets 210, A bottom support member 230 for supporting the end tabs 100 and connecting the ends of the end tabs 100 to the case members 220, The elastic member 240 may be formed of a metal.

The elastic member 240 may be a line spring or a leaf spring, which is a member that provides an elastic force capable of firmly bringing the end tab 100 into close contact with the side surface of the welding base material 10. The elastic member 240 of the present invention is not limited to the elastic member 240 and may be formed by supporting the end tab 100 on the opposite side of the welding base material 10 and applying force to the end tab 100 in the direction of the welding base material 10 Various means of structure can also be used. For example, a structure may be provided for connecting the case 220 to the back end of the end tab 100.

The elastic member 240 is installed on both sides of the case 220 so that both ends of the elastic member 240 are fixed to the end portion of the case 220. The center portion of the elastic member 240 pushes the back surface of the end tab 100, Can be brought into close contact with each other. Other means for replacing the elastic member 300 include a support member having both ends fixed to both sides of the case 100 and a support member supported by the support member, have.

5 to 7 illustrate end tabs 101, 102, and 103, respectively, to which respective heat sinks 130 are mounted according to other embodiments of the present invention.

Here, in the butt welding end support device shown in the drawings, components performing the same or similar functions as those in the butt welding end support device shown and described in Figs. 1 to 4 use the same reference numerals, And detailed description thereof will be omitted.

Referring to the drawings, the end tabs 101, 102, and 103 may include a receiving portion 110, a side portion 120, and a heat radiating portion 130. Here, the heat dissipation unit 130 may be provided in an area opposite to a side of the side surface 120 that is in contact with the welding base materials 10, and may absorb heat and discharge the heat from the side surface 120. Therefore, the heat dissipating portion 130 allows the end tabs 101, 102, and 103 to efficiently discharge the heat transmitted from the welded portion or the welded base materials 10.

In this case, the heat transmitted from the welded portion of the end tab 100 is rapidly discharged, so that the end tab 100 can be cooled faster than the weld bead. Therefore, after the welding, the end tab 100 can be easily separated from the projected bead by extending the weld bead, thereby improving workability.

In addition, since the heat transmitted by the heat dissipating unit 130 can be efficiently dissipated, the sizes of the end taps 101, 102, and 103 can be made smaller and lighter. Particularly, even when the end tabs 101, 102, 103 of copper material having a relatively small heat capacity are used, the end tabs 101, 102, 103 can be reduced in size and weight.

5, the heat dissipating unit 130 may include at least one or more heat dissipating holes 131 passing through the upper and lower surfaces, or at least one or a plurality of heat dissipating units Holes, or at least one or a plurality of heat dissipating holes of a shape passing through the upper and lower surfaces and intersecting with the both side surfaces.

At this time, the position corresponding to the heat dissipation holes of the case 220 and / or the lower surface support member 230 may be opened to smooth the air flow in the heat dissipation holes, or the case 220 and / Holes or holes may be formed at positions corresponding to the heat dissipating holes in the heat dissipating unit 230.

6, a plurality of heat dissipating units 130 may be provided so as to protrude in a pin shape from the opposite side of a side of the side surface 120 that is in contact with the welding base materials 10, And a plurality of heat radiating fins 132 protruding in a pin shape from an upper surface, a lower surface, or a side surface of an area spaced apart from a surface contacting the welding base materials 10 of the heat sink.

At this time, the position corresponding to the radiating fins 132 of the case 220 and / or the lower surface supporting member 230 may be opened or the case 220 and / or the lower surface of the case 220 may be opened to smooth airflow in the radiating fin 132. [ Hole or holes may be formed in the support member 230 at positions corresponding to the heat radiation fins 132.

7, a plurality of heat dissipating units 130 may be provided so as to protrude in a plate form from opposite surfaces of the side surfaces 120, which are in contact with the welding base materials 10. Alternatively, And a plurality of heat dissipating plates 133 protruding in a plate shape from an upper surface, a lower surface, or a side surface of an area spaced apart from a surface contacting the welding base materials 10 of the heat sink.

At this time, the position corresponding to the radiating fin 132 of the case 220 and / or the lower surface supporting member 230 may be opened or the case 220 and / Holes or holes may be formed at positions corresponding to the heat sink 133 in the support member 230).

8, the end tap 104 to which the heat pipe 150 is mounted in the butt welding end supporting apparatus according to the embodiment of the present invention is fixed to the welding base materials 10 by the end tap fixing means 240 Is shown. FIG. 9 shows a more detailed configuration of the end tap 104 on which the heat pipe 150 of FIG. 8 is mounted.

Here, in the butt welding end support unit shown in the drawings, components performing the same or similar functions as those in the butt welding end support unit shown and described in Figs. 1 to 7 use the same reference numerals, And detailed description thereof will be omitted.

Referring to the drawings, a butt welding end supporting apparatus is provided in an area opposite to a surface of a side part 120 of an end tap 104 that is in contact with a welding base material 10, And a heat pipe 150 for absorbing and discharging the heat. Here, the heat pipe 150 may perform a heat dissipation function of heat transmitted alone or in combination with a separate heat dissipation unit 134.

The end tab 105 may include a receiving portion 110, a side portion 120, a heat dissipating portion 134, and a heat pipe 150. The heat pipe 150 may be provided with heat dissipation promotion means such as a heat dissipation fin or the like alone or in combination with the heat dissipation portion 134.

Here, the heat pipe 150 may be provided in an area opposite to a side of the side part 120 that is in contact with the welding base materials 10, and may absorb and discharge heat from the side part 120. Thus, the heat pipe 150 allows the end tabs 104 to efficiently discharge the heat transmitted from the welds or welds 10.

In this case, the heat transmitted from the welded portion of the end tab 100 is rapidly discharged, so that the end tab 100 can be cooled faster than the weld bead. Therefore, after the welding, the end tab 100 can be easily separated from the projected bead by extending the weld bead, thereby improving workability.

In addition, since the heat transmitted by the heat pipe 150 can be efficiently dissipated, the size of the end tap 104 can be made smaller and lighter. Particularly, even when the end tap 104 made of a copper material having a relatively small heat capacity is used, the end tab 104 can be downsized and lightweight.

The heat pipe 150 may be disposed such that one side of the heat pipe 150 is in close contact with the side surface portion 120 and extends in a direction away from the side surface portion 120. In this case, the heat transmitted through the side portion 120 can be transmitted through the working fluid of the heat pipe 150 in a direction opposite to the welding base material 10 to dissipate heat.

At this time, one side of the heat pipe 150 may have a thickness similar to that of the side surface 120, and the other side may have a thickness thinner than one side. In this case, one side can have a thickness similar to that of the side part 120 to have a sufficient contact area with the side part 120, and the other side has a thickness thinner than one side so that the working fluid can easily circulate. Therefore, it is possible to maximize the heat radiation efficiency by the end tap 104. [

The heat dissipating unit 130 and / or the heat pipe 150 may be detachably attached to the side surface 120 in a detachable manner. In this case, since the heat dissipating unit 130 and / or the heat pipe 150 are removably attached to the end tab 104, even when the end tab 104 has reached the end of its life, only the end tab 104 is replaced, 130 and / or the heat pipe 150 can be reused. Thus, it is possible to operate the end tab 104 economically.

Meanwhile, a spatula blocking member 160 may be provided between the heat pipe 150 and the welding base material 10 to block at least a part of the spatters generated during the welding operation. Therefore, it is possible to prevent the spatter generated during welding from deteriorating the heat pipe 150, thereby improving the heat radiation performance of the heat pipe 150, and enabling the operation of the end tap 104 economical .

On the other hand, the working fluid circulates inside the heat pipe 150 to transmit heat. The working fluid is a medium that absorbs the heat when the end tap 104 is heated by the welding heat and is heated, and moves the heat quickly to the heat pipe 150 through the convection phenomenon. This working fluid is usually water, and a liquid having a boiling point lower than that of water can be used. A portion of the inner space of the body 240 on the side of the welding base material 10 may be formed to have a lower height than the other portions so that the working fluid collects toward the welding base material 10.

According to the present invention, the back bead for forming the backside bead and the end tab attached to the end portion are formed into a single body, thereby reducing the protruding bead at the end portion remaining after welding, thereby easily removing the lead bead .

In addition, it is possible to reduce the number of steps for cutting the extended steel plate under the end tap, and to simplify the process of cutting and removing the long end weld bead protruding after the end tap is removed by carbon arc gouging, .

Further, by using a copper material as the end tap, the welding heat can be cooled quickly, and the end tab and the weld bead can be easily separated, and workability can be improved.

Further, by simply fixing the end tab using the magnet of the case, the end tab can be fixed and / or separated easily, and workability can be improved.

Also, since the end support device can be reused, the industrial waste is not produced compared to the conventional disposable end tap and the backing material, and thus, there is an eco-friendly effect.

Further, there is an effect that the length of the bead of the end tap can be shortened, and the grinding time after welding can be shortened.

In addition, when the end tap is above a predetermined temperature, it can be easily replaced with a new end tap, and the post-replacement operation can be continuously performed.

Further, since the end tab can be strongly adhered to the weld base material through the elastic member, there is an effect of improving the heat radiation performance through the end tab.

Further, the insertion member is attached to the side groove and / or the support groove so that the arc or the bead does not directly touch the end tab, thereby preventing the end tab from melting, changing shape or breaking.

In addition, the magnet can be repeatedly used repeatedly by locating the magnet at a position below a certain temperature in a high-temperature welded portion based on the Rosenthal formula.

In addition, there is an effect that it is possible to prevent the heat pipe, the heat radiation fin or the heat radiation plate from being damaged by the spatters by providing the spatters blocking member.

Further, by forming the heat dissipating holes, it is possible to increase the cooling speed of the end tap and reduce the weight.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made therein without departing from the spirit and scope of the invention. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention.

10: welding base material, 100: end tap,
130: heat dissipating part, 140: insertion member,
150: heat pipe, 160: spatters blocking member,
210: magnet, 220: case,
230: lower support member, 240: elastic member.

Claims (26)

(110) at least a portion of which is in contact with the back surface of the welding base material (10) of the butt weld portion; And
At least a portion of which has a side portion (120) in contact with a side surface of the weld metal (10) in the vicinity of the butt weld portion,
Wherein the support part (110) and the side part (120) are integrally formed.
The method according to claim 1,
Wherein the support portion (110) and the side portion (120) are made of a material including copper or copper.
The method according to claim 1,
Wherein the side portion (120) is provided with side grooves (121) forming a space between the butt weld portion and the butt weld portion.
The method according to claim 1,
A side groove 121 for forming a space between the butt weld portion and the side surface portion 120 is provided,
Wherein the width of the surface of the side groove (121) facing the welded portion is larger than the width of the butt welded portion.
The method according to claim 1,
The side surface portion 120 is provided with a side groove 121 for forming a space between itself and the welding base material 10,
Wherein a width of a surface of the side groove (121) facing the welding base material (10) is larger than a distance of the side surface of the side groove (121) away from the welding base material (10).
The method according to claim 1,
Wherein a receiving groove (111) is provided along the weld line of the welding portion so that a stable back bead is formed on the back surface of the receiving portion (110).
The method according to claim 1,
The side surface portion 120 is provided with a side groove 121 for forming a space between itself and the welding base material 10,
Further comprising an insertion member (140) located at least a part of the inner surface of the side groove (121).
At least a part of which is in contact with the back surface of the welding base materials (10) of the butt welding part and at least a part of the supporting base part And an end tap fixing means (200) for supporting the end tap (100) including the side portion (120) composed of the end portions (120) made of the same.
9. The method of claim 8,
The end tab fixing means 200 is spaced apart from each other by a predetermined distance and supports the end tab 100 therebetween and the side surface portion 120 of the end tab 100 is in close contact with the side surfaces of the welding preforms 10 (210). ≪ RTI ID = 0.0 > [0002] < / RTI >
10. The method of claim 9,
The magnets 210 are accommodated in such a manner that the magnets 210 are replaceable by being built-in or inserted / extracted, and the magnets 210 are welded to the welds 10 (220) spaced from the base materials (10).
11. The method of claim 10,
Wherein the case (220) comprises a ceramic material or a ceramic material.
11. The method of claim 10,
Wherein the case (220) is provided with an empty space between the magnets (210) and the welding base materials (10).
10. The method of claim 9,
The magnets 210 are heated to a temperature not more than the heat resistant temperature of the magnets 210 or a position farther than a position satisfying the Rosenthal's equation based on the heat resistance temperature of the magnets 210, A butt weld end support device disposed to fall from the arc.
10. The method of claim 9,
Wherein the magnets (210) are arranged so as to be spaced apart by 15 +/- 2 mm or more from the arc generated in welding.
10. The method of claim 9,
The end-tab fastening means (200)
A pair of cases 220 separately accommodating the respective magnets 210 therein,
And a bottom support member (230) connecting between the cases (220) and supporting the end tab (100) thereon.
10. The method of claim 9,
The end-tab fastening means (200)
A pair of cases 220 separately accommodating the respective magnets 210 therein,
Further comprising an elastic member (240) mounted at each of the cases (220) at both ends to provide an elastic force to adhere the side surface portion (220) of the end tab (100) to the side surface of the welding base material Bottom end support device for butt welding.
17. The method of claim 16,
Wherein the elastic member (240) is a line spring or a leaf spring. At least a part of which is in contact with the back surface of the welding base materials 10 of the butt weld portion,
At least a part of which is in contact with the side surface of the welding base material (10) in the vicinity of the butt weld portion, and which is integrated with the receiving portion (110)
And a heat dissipation part (130) provided in an area opposite to a surface of the side part (120) in contact with the welding base materials (10) and absorbing and discharging heat from the side part (120).
19. The method of claim 18,
At least one or a plurality of heat dissipating holes 131 having a shape penetrating the upper and lower surfaces or at least one or a plurality of heat dissipating holes having a shape penetrating both side surfaces or at least one or a plurality of A butt welding end bearing assembly comprising heat dissipating holes.
19. The method of claim 18,
A plurality of the side portions 120 may be formed so as to protrude in a pin shape from the opposite side of the side contacting the welding base materials 10 or may be spaced apart from the side of the side surface portions 120 in contact with the welding base materials 10 And a plurality of heat radiating fins (132) protruding in a fin shape from an upper surface, a lower surface, or a side surface of the heat radiating fin.
19. The method of claim 18,
A plurality of the side portions 120 may be provided so as to protrude in a plate shape from the opposite side of the side contacting the welding base materials 10 or may be spaced apart from the side of the side portion 120 in contact with the welding base materials 10 And a plurality of heat dissipating plates (133) protruding in a plate shape from an upper surface, a lower surface, or a side surface of the heat dissipating plate.
At least a part of which is in contact with the back surface of the welding base materials (10) of the butt welding part and at least a part of the supporting base part Is provided in an area opposite to a side of the side part (120) of the end tab (100) including the side part (120) which is in contact with the welding base materials (10) And a heat pipe (150) for absorbing and discharging the heat pipe (150).
23. The method of claim 22,
Wherein the heat pipe (150) is disposed so that one side thereof contacts the side part (120) and extends in a direction away from the side part (120).
24. The method of claim 23,
Wherein the one side has a thickness similar to that of the side portion and the other side has a thickness thinner than the one side.
23. The method of claim 22,
Wherein the heat radiating part (130) or the heat pipe (150) is removably and tightly mounted to the side part (120).
23. The method of claim 22,
And a spatters blocking member (160) provided between the heat pipe (150) and the welding base material (10) so as to block at least a part of spatters generated during a welding operation.

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