KR20170096643A - Support Device of Ends for Butt Joint Welding - Google Patents

Support Device of Ends for Butt Joint Welding Download PDF

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Publication number
KR20170096643A
KR20170096643A KR1020160017672A KR20160017672A KR20170096643A KR 20170096643 A KR20170096643 A KR 20170096643A KR 1020160017672 A KR1020160017672 A KR 1020160017672A KR 20160017672 A KR20160017672 A KR 20160017672A KR 20170096643 A KR20170096643 A KR 20170096643A
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KR
South Korea
Prior art keywords
support
coupled
welding
welding base
support member
Prior art date
Application number
KR1020160017672A
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Korean (ko)
Inventor
조상명
박정현
김성률
배성호
Original Assignee
부경대학교 산학협력단
매그스위치 테크놀로지 코리아 (주)
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Application filed by 부경대학교 산학협력단, 매그스위치 테크놀로지 코리아 (주) filed Critical 부경대학교 산학협력단
Priority to KR1020160017672A priority Critical patent/KR20170096643A/en
Publication of KR20170096643A publication Critical patent/KR20170096643A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/06—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for positioning the molten material, e.g. confining it to a desired area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/02—Seam welding; Backing means; Inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/035—Seam welding; Backing means; Inserts with backing means disposed under the seam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The present invention provides a welded end support device capable of partial replacement by forming a structure in which an end tab attached to the back and end portions of the butt-welded end portions is removably and integrally joined to the support portion and the side surface portions The purpose. 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; At least a portion of which is in contact with a side surface of the welding base material (10) and is detachably and integrally coupled to the receiving portion (110); And a fixing part 200 for supporting at least any one of the receiving part 110 and the side part 120 to the welding base materials 10 by a magnetic force.

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)

The present invention provides a welded end support device capable of partial replacement by forming a structure in which an end tab attached to the back and end portions of the butt-welded end portions is removably and integrally joined to the support portion and the side surface portions The purpose.

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; At least a portion of which is in contact with a side surface of the welding base material (10) and is detachably and integrally coupled to the receiving portion (110); And a fixing part 200 for supporting at least any one of the receiving part 110 and the side part 120 to the welding base materials 10 by a magnetic force.

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 lateral groove 121 may be formed in the side portion 120 to define a space between the butt weld portion and the width of the side surface of the side groove 121 facing the weld portion may be greater than the width of the butt weld portion .

The width of the side surface of the side groove 121 facing the welding base material 10 may be greater than the distance of the side surface of the side surface groove 121 from 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. [

And an insertion part 130 inserted between the side part 120 and the welding base materials 10 and detachably and integrally coupled to the side part 120.

And an insertion member 140 disposed on the inner surface of the side groove 121 and in direct contact with an arc generated during welding.

The fixing part 200 includes a support part support member 210 which supports the support part 110 on the underside and which is integrally coupled to the support part 110 in a detachable manner, And includes a magnet 220 magnetically coupled to the welding base materials 10 to be removable from the welding base materials 10 and magnetically coupled to support the supporting base material 210 to the welding base materials 10. [ can do.

The pair of magnets 220 (220) extend from both ends of the support portion support member 210 at both ends in the width direction of the support portion 110 and are coupled to both ends of the support portion support member 210, ).

And a case 230 coupled to the support portion support member 210 and accommodating the magnet 220 therein.

The side part 120 may further include a second side groove 121a provided on the opposite side of the side groove 121 to form a space therebetween.

A second support portion 110a protruding in a direction opposite to the direction in which the support portion 110 protrudes from the side portion 120 and at least a part of which comes into contact with the back surface of the weld metal materials 10 of the butt weld portion .

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 material (10) of a butt weld portion; At least a portion of which is in contact with a side surface of the welding base material (10) and is detachably and integrally coupled to the receiving portion (110); And a support part supporting member (210) supporting at least one of the support part (110) and the side part (120) on the underside and integrally coupled to the support part (110) so as to be detachable. And a magnet 220 that magnetically supports the support base support member 210 to the welding base materials 10. [

The magnet 220 is integrally coupled to be detachable from the support portion support member 210, and can be magnetically coupled with the welded base materials 10.

The pair of magnets 220 (220) extend from both ends of the support portion support member 210 at both ends in the width direction of the support portion 110 and are coupled to both ends of the support portion support member 210, ).

And a case 230 coupled to both end portions of the support portion support member 210 and accommodating the magnet 220 therein.

And a case 230 coupled to the support portion support member 210 to support the magnet support member 210 to support the support base member 210.

According to another aspect of the present invention, there is provided a welding end supporting apparatus comprising: a supporting portion (110) at least a portion of which is in contact with a back surface of a welding base material (10) of a butt weld portion; At least a portion of which is in contact with a side surface of the welding base material (10) and is detachably and integrally coupled to the receiving portion (110); And a bottom support member 210 supporting at least one of the support portion 110 and the side portion 120 on the underside and integrally coupled to the support portion 110 or the side portion 120 in a detachable manner. And a lower supporting member 210 detachably coupled to the lower supporting member 210 and being magnetically coupled with the welding base members 10 so as to support the lower supporting member 210 to the welding base members 10 And may include magnets 220.

The side portion 120 may be coupled to the receiving portion 110 and the lower supporting member 210 may be coupled to the lower surface of the receiving portion 110. [

The side portion 120 may be coupled to the side of the receiving portion 110 and the bottom supporting member 210 may be coupled to the bottom of the receiving portion 110.

The side part 120 may be coupled to the side of the receiving part 110 and the bottom supporting member 210 may be coupled to the bottom of the side part 120. [

The support member 210 includes a coupling portion 211 coupled to a lower surface of the side portion 120 in the width direction of the side portion 120 and a coupling portion 211 coupled to the welding base material 10 And a magnet coupling part (220) to which the magnet (220) magnetically coupled with the lower surface of the welding base material (10) is coupled to an end of the extending part (212) 213).

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 material (10) of a butt weld portion; A bottom support member (not shown) integrally coupled to the end tab 100 to support the end tab 100 including the side part 120, which is in contact with the side surface and is integrated with the support part 110, 210); And a lower supporting member 210 detachably coupled to the lower supporting member 210 and being magnetically coupled with the welding base members 10 so as to support the lower supporting member 210 to the welding base members 10 And may include magnets 220.

According to the present invention, the end tabs attached to the back and end portions of the butt-welded end portions are formed in a structure in which the support portion and the side portion are removably and integrally joined to each other, do.

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 explain the principles of the invention, It should not be interpreted.
1 is a perspective view schematically showing an end tap of a butt welding end supporting device according to an embodiment of the present invention, which is fixed to a welding base material by an end tap fixing part.
FIG. 2 is a perspective view schematically showing an end tap fixing portion coupled to the end tap of FIG. 1. FIG.
3 is a graph schematically showing the temperature distribution near the welded portion by the Rosenthal equation.
FIG. 4 is a perspective view schematically illustrating a state in which an inserting portion in direct contact with an arc is interposed between a side portion and a welding base material in a butt welding end supporting apparatus according to another embodiment of the present invention.
Fig. 5 is a perspective view schematically illustrating a butt welding end support device which can be used as an end tap on both sides according to another embodiment of the present invention.
6 is a view schematically showing an end tap fixing part coupled to the bottom surface of the end tap in the butt welding end support of FIG.
7 is an exploded perspective view schematically showing each component of the butt welding end supporting apparatus according to another embodiment of the present invention.
8 is a view schematically showing a state in which the support part is coupled to the side of the side part facing the welding base material in the butt welding end supporting device according to another embodiment of the present invention.
9 is a view schematically showing a state in which the support portion of the butt welding end support device according to another embodiment of the present invention is coupled to the side surface of the side portion facing the welding base material and the end tapped fixing portion is coupled to the side lower surface.

Hereinafter, the present invention will be described in detail with reference to the drawings. The present invention will be described by taking the butt welding end supporting device shown in the figure as an example, but the present invention is not limited to the butt welding end supporting device shown in the drawings.

Various embodiments are described herein that can support the present invention. The components and features applied to different embodiments may be selectively applied thereto, and a detailed description thereof will be omitted.

FIG. 1 shows an end tap 100 fixed to a welding base material 10 by an end tap fixing part 200 in a butt welding end supporting device according to an embodiment of the present invention. FIG. 2 shows a state where the end-tab fixing unit 200 is coupled to 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 welding end supporting device for welding is integrally coupled to the end tap 100 so as to be detachable from the end tap 100 so as to facilitate detachment and attachment of the end tap 100 to attach the end tap 100 to the welding base materials 10 with a magnetic force And an end tap fixing means (200) for fixing the end tap.

The end tap fixing means 200 may be a fixing portion 200 for supporting the receiving portion 110 and / or the side portion 120 of the present invention to the welding base materials 10 by magnetic force.

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 portion 110 and the side portion 120 may be integrated. In this case, the receiving portion 110 and the side portion 120 are fastened together by a fastening means such as a bolt, and can be integrally and detachably coupled to each other.

Also, the receiving portion 110 and / or 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. Also, since the thermal conductivity of copper and the weld bead is different, the end tab 100 can be easily separated from the protruding bead after the welding by extending the weld bead.

Accordingly, workability for separating the end tab 100 from the projecting bead after the work is improved, and the end tab 100 can be reused. When the end tab 100 made of copper or copper is used as compared with the conventional end tab, the cost can be increased, but the re-use becomes possible and the expensive price can be compensated.

Further, by making the protruding beads on the sides left on the starting portion and / or the terminal end after welding small or short, it is possible to easily remove the protruding beads, shorten the removing time of the protruding beads, and shorten the working time.

At this time, the receiving portion 110 and the side portion 120 may be integrally formed to improve the detachability of the end tab 100. At this time, in the butt welding end supporting apparatus according to an embodiment of the present invention, the receiving unit 110 and the side part 120 can be detachably and integrally combined.

In the conventional integrated-type end tap 100, in order to manufacture the end tab 100, a large member must be formed by cutting out unnecessary portions by processing. However, in the butt welding end supporting apparatus according to an embodiment of the present invention, the support unit 110 and the side unit 120 are manufactured and joined together, thereby facilitating manufacture and reducing the material cost. In addition, it is necessary to replace the end tab 100 according to the use, but the support part 110 or the side part 120 can be partially replaced, thereby improving the economical efficiency.

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 . So that the lifetime of the end tab 100 can be improved.

At this time, the insertion member 140 may be integrally coupled to the side portion 120 in a detachable manner at a portion contacting the welding bead. For this purpose, fastening means such as bolts may be used to facilitate coupling and separation in the future. At this time, a through hole through which the bolt can be inserted is formed in the insertion member 140, and an insertion hole is formed in a portion of the side portion 120, which is in contact with the insertion member 140, . At this time, the through holes and the insertion holes may be arranged in two or more holes along the vertical center line of the insertion member 140. In addition, a groove is provided at a position where the through hole of the insertion member 140 is formed so that the bolt is not exposed to the outside of the surface, and the bolt head can be housed in the groove.

Alternatively, the insertion member 140 may be inserted into the side groove 121 by means of fastening means such as a bolt or may be inserted. In another embodiment, a slot may be provided in the side groove 121, 140 may be interposed between them. In this case, the engagement and disconnection of the bolt can be easily performed in the side groove 121 of the insertion member 140, and it is unnecessary to process holes and / or grooves for bolt connection, It is not necessary to arrange the bolt at the portion where the bolt is disposed. Therefore, workability and separability between the projecting beads and the like are improved.

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.

In another embodiment, as in the embodiment shown in FIG. 4, a separate insertion portion 130 may be integrally coupled to the side portion 120 in a detachable manner. In this case, a separate side groove 121 is not formed in the side portion 120, and a side groove 131 may be formed in the insertion portion 130.

At this time, the insertion portion 130 may be integrally coupled to the side surface of the side portion 120 in a detachable manner. For this purpose, fastening means such as bolts 132 may be used to facilitate coupling and separation in the future. At this time, the insertion portion 130 is formed with a through hole into which the bolt 132 can be inserted, and at a portion of the side portion 120 which contacts the insertion portion 130, a thread is formed in at least a part communicating with the through- Holes may be formed. At this time, the through hole and the insertion hole may be formed at a position where the through hole and the insertion hole are in contact with the welding base material 10, not the side groove 131 contacting the welding bead. In addition, a groove 132a is formed at a position where the through hole of the insertion portion 130 is formed so that the bolt is not exposed to the outside of the surface, and the bolt head can be housed in the groove.

At this time, the fastening means can be a bolt made of a material stronger in strength than a material to be fastened, such as stainless steel, coupled with a thread formed on a material including copper or copper. That is, the bolt 132 can be fastened to the side portion 120 by screwing. In this case, a repeated fastening and separating operation may be required for reuse, so that a portion that is to be screwed with the bolt 132 in the insertion hole of the side portion 120 to protect the side portion 120 where a relatively weak material is used A reinforcement tab, such as a bushing, may be inserted.

The bolt-type fastening structure using the bolt 132, the groove 132a for the bolt head, and the insert for protecting the body include the receiving portion 110 and the side portion 120, the receiving portion 110, The present invention is equally applicable to a detachable integral coupling structure of the auxiliary support member 210, the support portion support member 210 and the magnet 220, and the side portion 120 and the insertion portion 130 or the insertion member 140 . 6, the support portion 110 and the side portion 120 are coupled by the first bolt 151, and the support portion 110 and the support portion support member 210 are coupled to each other by the second bolt 152 And the support portion support member 210 and the magnet 220 can be coupled by the third bolt 153. [

However, the present invention is not limited thereto, and various types of fastening means other than bolts can be used.

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 may include a bearing support member 210 and a magnet 220. The support portion support member 210 may be a bottom support member 210 for supporting the end tab 100 of the present invention on the underside. The end tab fastening means 200 can easily hold and attach the end tab 100 to the weld base materials 10 because the end tab 100 is supported and / So that the workability can be improved.

The support portion support member 210 may be integrally coupled to the support portion 110 and / or the side portion 120 so as to be detachable from the support portion 110 and / or the side portion 120. The magnet 220 is magnetically coupled with the welded base materials 10 so as to magnetically support and / or fix the base support member 210 to the welded base materials 10. Accordingly, the magnet 220 becomes able to magnetically support and / or fix the end tab 100 to the weld base materials 10. [ The magnet 220 may be integrally coupled to the support portion supporting member 210 in a detachable manner.

In the embodiment shown in FIGS. 2 and 4, the support portion support member 210 may be installed on the lower surface of the support portion 110 as shown in FIG.

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 220 may be included. To this end, both end portions of the support portion support member 210 extend outward at both ends in the width direction of the support portion 110, and a pair of magnets 220 are provided at both end portions of the support portion support member 210 Can be combined.

In this case, a pair of magnets 220 are magnetically attached to the welding base materials 10 on both sides of the side surface 120, which contact the lower surface of the welding base materials 10, And can be supported and / or fixed in close contact with the welded portion of the base 10. Thus, by utilizing the pair of magnets 220, the end tab 100 can be easily fixed and / or separated.

Meanwhile, as the magnets 220, magnets of a kind 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 220.

On the other hand, the end-tap fastening means 200 is housed so that the magnets 220 are interchangeable with the built-in or inserted / withdrawn inside of the end tap fastening means 200, so that the magnets 220 are not brought into direct contact with the weld- (220) from the weld preforms (10). The case may be made of a ferromagnetic material so that the magnetic force of the magnet can be transmitted well. The case may block the direct transfer of heat from the weld metal 10 or welding arc during welding to the magnets 220. Therefore, the case can prevent the magnets 220 from being damaged by heat.

The case is coupled to both end portions of the support portion support member 210, and a magnet 220 can be housed in the case. The case may be coupled to the support portion support member 210 to support the magnet 220 to support the support portion support member 210 on the weld base material 10. The case may be adapted to support the magnet and be easily fixed to the support portion support member 210. At this time, the magnet may be supported to expose a part of the magnet. The case may support the magnet and a portion of the magnet may be exposed to directly contact the welds 10.

At this time, the case may include a ceramic material or a ceramic material. By forming the case using a ceramic material, it is possible to effectively prevent heat from being transmitted from the outside to the magnet.

In another embodiment, an empty space may be provided between the magnets 220 and the weld matrixes 10 inside the case. The space between the magnets 220 inside the case 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 220 are separated from the arc generated at the welding at a position below the heat resistance temperature of the magnet 220, or at a position farther from the position satisfying the Rosenthal equation on the basis of the heat resistance temperature of the magnet 220 . Accordingly, it is possible to prevent the magnets 220 from being damaged by heat transmitted from the welding base materials 10 or welding arc to the magnets 220 at the time of welding. For this, the magnets 220 may be arranged to be spaced apart by 15 mm or more from the arc generated during welding.

The case may be constructed so that two magnets 220 can be built in or inserted / withdrawn so as to be respectively attached to the cross sections of two adjacent welding base materials 10 for welding. The case may be made of a heat shielding material containing ceramic to protect the magnet 220 by cutting off heat generated during welding, so that the magnet 220 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 220.

In this case, it is preferable that the magnets 220 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 obtained from the Rosenthal formula It can be attached so as to be separated by about 20 mm or more 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.

Figure pat00001

(I * V, Watt), where T is the limit temperature of the magnet, T 0 is the original temperature (preheating temperature, K), K s is the thermal conductivity (J / , α s: thermal diffusion coefficient (mm 2 / s), U : distance from the heat source (√ (x 2 + y 2 ), x:: welding speed (mm / s), R the distance of the direction in which welding proceeds, y : Distance perpendicular to the direction of travel of the weld)

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)

Figure pat00002

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 220 can be attached at least 10 mm 2 ~ 3 mm away from the weld bead, and stably spaced at least about 20 mm 5 mm away from the weld bead.

On the other hand, the magnet 220 may be disposed so as to be separated by at least 15 mm 2 mm from the arc generated at the time of welding. To meet this requirement, the case may be arranged such that the magnets 220 are separated from the arc by at least about 15 mm and at least 2 mm apart from the arc about 20 mm and 5 mm or more from the weld bead, respectively, so as to attach to both welded base materials 10.

The end-tap securing means 200 may include a pair of cases that accommodate the respective magnets 220 separately therein. Each of the magnets 220 can be accommodated separately in a pair of cases. That is, the case is formed of 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 attraction between the magnets 110 in the case. Thus, the end tab 100 can be easily fixed and / or detached.

4 shows a state in which a separate insertion portion 130 in direct contact with an arc is interposed between the side portion 120 and the welding base materials 10 in the butt welding end supporting apparatus according to another embodiment of the present invention. . A separate insertion part 130 may be integrally coupled to the side part 120 so as to be detachable. In this case, a separate side groove 121 is not formed in the side portion 120, and a side groove 131 may be formed in the insertion portion 130.

Therefore, since the side portion 120 does not directly contact the arc and / or protruding bead, only the insertion portion 130 contacts the arc and / or protruding bead, The cost can be reduced when a material including copper or copper, which is relatively expensive, is used.

In addition, as shown in the drawing, it is possible to improve workability such as joining and fastening by being integrally joined so as to be detachable using a fastening element such as a bolt.

Fig. 5 shows a butt welding end support device that allows both ends to be used as end taps in accordance with another embodiment of the present invention. Fig. 6 is a view of the butt welding end supporting apparatus of Fig. 5 in which the end tap fixing portion is coupled to the bottom surface of the end tap. Respectively. Fig. 7 shows separate components of a butt welding end support device, which allows both ends to be used as end taps in accordance with another embodiment of the present invention.

Referring to the drawings, in the embodiment shown in FIGS. 5 to 7, the receiving portions 110 and 110a and the side portion 120 are configured to be used on both sides. Therefore, when the support part 110 and the side part 120 on one side are used to replace the support part 200, the support part 200 is coupled to the second support part (110a) 110a and the side portion 120 can be installed on the welding base materials 10. [ Therefore, the end tab 100 can be easily reused.

The side part 120 may further include a second side groove 121a provided on the opposite side of the side groove 121 so as to form a space with the butt weld. In other words, the side grooves 121 and the second side grooves 121a may be formed on both sides of one side portion 120 so that both sides can be used.

The second receiving portion 110a protruding from the side portion 120 in a direction opposite to the direction in which the receiving portion 110 protrudes and at least partially contacting the back surface of the welding base materials 10 of the butt weld portion .

At this time, the second support portion 110a may be further provided with a second support groove 111a along the weld line of the weld portion so that a stable back bead is formed on the back surface of the weld bead. At this time, the second receiving portion 110a may be integrated with the receiving portion 110 so as to simplify the structure. As shown in FIG. 7, the insertion portions 130 and 130a having side grooves 121 and 121a formed on both sides of the body of the side portion 120 may be integrally coupled to each other.

The side part 120 may be coupled to the receiving part 110 and the receiving part supporting member 210 may be coupled to the lower surface of the receiving part 110. In this case, the end tabs 100 can be formed by combining the two rectangular parallelepipeds formed with the grooves, so that the simple structure can be manufactured. This is equally applicable to the embodiment of FIG.

8 shows a butt welding end support according to another embodiment of the present invention in which the support portion is joined to the side of the side portion facing the weld metal blank. Fig. 9 shows a butt welding end support device in which the support portion is coupled to the side of the side portion of the side portion facing the weld base material, and the end tapped portion is coupled to the side portion bottom according to another embodiment of the present invention.

Referring to the drawings, the side part 120 is coupled to the side surface of the receiving part 110 so that the end tap 100 can be realized. In this case, it is possible to form a hole toward the side part 120 from the front side of the receiving part 110, and to insert the bolt into the hole to fasten the side part 120.

At this time, the lower surface supporting member 210 is coupled to the lower surface of the receiving unit 110, and the magnets 220 fixed to the end of the lower surface supporting member 210 are attached to the lower surface of the welding base materials 10, The tabs 100 can be magnetically fixed to the ends of the welding base materials 10. [

The lower surface supporting member 210 is coupled to the lower surface of the side surface portion 120 and the magnets 220 fixed to the lower surface of the lower surface supporting member 210 are attached to the lower surface of the welding base materials 10 , The end tab 100 can be magnetically fixed to the end of the welding base materials 10. When the supporting unit 110 is replaced more frequently, it is possible to reduce the work of separating and connecting the bottom supporting member 210 as much as it is.

In this case, the lower surface support member 210 may include a coupling portion 211, a pair of extending portions 212, and a magnet coupling portion 213. The engaging portion 211 may be coupled to the lower surface of the side portion 120 in the width direction of the side portion 120. The pair of extensions 212 may extend to the lower portion of the weld metal materials 10 at the opposite ends of the joint portion 211, respectively. The magnet coupling part 213 may be coupled to the magnet 220 magnetically coupled to the lower surface of the welding base material 10 at the end of the extended part 212.

It is possible to stably support the end tab 100 to the welding base members 10 by making it possible to easily support the downward force acting on the end tab 100 by the bottom supporting member 210 of the end tab fixing means 200. [ As shown in Fig. In this case, in the butt welding end supporting apparatus, the end taps 100 can be supported and / or fixed to the welding base materials 10 by the end tap fixing means 200.

On the other hand, the heat dissipating unit may be attached to the end tab 100 to effectively dissipate heat transmitted to the end tab 100. The heat dissipating portion may be provided in an area opposite to a surface of the support portion 110 and / or the side surface portion 120 that is in contact with the welding base materials 10 to absorb and discharge heat from the support portion 110 and / or the side surface portion 120 . Thus, the heat dissipating portion enables the end tab 100 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 can be efficiently dissipated, the size of the end tab can be made smaller and lighter. Particularly, even when the end tap 100 made of a copper material having a relatively small heat capacity is used, the end tab 100 can be reduced in size and weight.

The heat dissipation unit may include at least one or a plurality of heat dissipation holes passing through the upper and lower surfaces or at least one or a plurality of heat dissipation holes passing through both side surfaces or at least one or a plurality of heat dissipation Holes. At this time, the upper and lower surfaces and / or the left and right sides corresponding to the heat radiating portion are opened, so that the heat radiation can be efficiently performed.

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

A plurality of heat dissipating units may be provided so as to protrude from the opposite surface of the side surface portion 120 that is in contact with the welding base materials 10 or may be formed in a region spaced apart from a surface of the side surface portion 120 in contact with the welding base materials 10 A plurality of heat radiating plates may be provided so as to protrude from the upper surface, the lower surface, or the side surface of the heat sink.

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, fixing and / or separation of the end tab can be facilitated, 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, 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.

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: insertion portion, 140: insertion member,
210: support part supporting member, 220: magnet.

Claims (24)

(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;
At least a portion of which is in contact with a side surface of the welding base material (10) and is detachably and integrally coupled to the receiving portion (110); And
And a fixing part (200) for magnetically supporting at least one of the receiving part (110) and the side part (120) to the welding preforms (10).
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,
Wherein a width of the side surface of the side groove (121) facing the welded portion is greater than a width of the butt welded portion, the side groove (121) forming a space between the side surface portion (120) End support device.
The method according to claim 1,
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) Is longer than the distance from the welding base material (10) of the welding end (121).
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,
Further comprising an insertion part (130) inserted between the side part (120) and the welding base materials (10) and removably integrated with the side part (120).
The method according to claim 1,
A side groove 121 is formed in the side part 120 to form a space with the welding base material 10 and an insertion member disposed in the inner surface of the side groove 121 and in direct contact with an arc 140). ≪ / RTI >
The method according to claim 1,
The fixing part (200)
A support unit 210 supporting the support unit 110 at a lower surface thereof and integrally coupled to the support unit 110 so as to be detachable,
And is magnetically coupled with the welding preforms 10 to be magnetically coupled to the welding preforms 10 so as to be detachable from the receiving part support member 210, And a magnet (220) for applying a magnetic field to the butt joint.
10. The method of claim 9,
The pair of magnets 220 (220) extend from both ends of the support portion support member 210 at both ends in the width direction of the support portion 110 and are coupled to both ends of the support portion support member 210, ) Of the butt weld.
11. The method of claim 10,
And a case which is coupled to the support part support member (210) and in which the magnet (220) is housed.
9. A method according to any one of claims 3 to 5 and 8,
Further comprising a second side groove (121a) provided on the opposite side of the side groove (121) so that the side portion (120) can form a space with the butt weld portion (121a).
13. The method of claim 12,
A second support portion 110a protruding in a direction opposite to the direction in which the support portion 110 protrudes from the side portion 120 and at least a part of which comes into contact with the back surface of the weld metal materials 10 of the butt weld portion Further comprising a butt welding end support device.
(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;
At least a portion of which is in contact with a side surface of the welding base material (10) and is detachably and integrally coupled to the receiving portion (110); And
A supporting part 210 supporting at least one of the supporting part 110 and the side part 120 on the underside and being integrally coupled to the supporting part 110 in a detachable manner; And
And a magnet (220) for magnetically supporting the support base support member (210) to the welding base materials (10).
15. The method of claim 14,
Wherein the magnet (220) is integrally coupled to the bearing support member (210) in a detachable manner and is magnetically coupled to the welding base materials (10).
16. The method of claim 15,
The pair of magnets 220 (220) extend from both ends of the support portion support member 210 at both ends in the width direction of the support portion 110 and are coupled to both ends of the support portion support member 210, ) Of the butt weld.
17. The method of claim 16,
And a case coupled to both end portions of the support portion support member 210 and having the magnet 220 housed therein.
15. The method of claim 14,
And a case coupled to the support portion support member 210 and supporting the magnet 220 so that the support portion support member 210 is supported by the welding base material 10. [ .
(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;
At least a portion of which is in contact with a side surface of the welding base material (10) and is detachably and integrally coupled to the receiving portion (110); And
A bottom support member 210 which supports at least one of the support portion 110 and the side portion 120 on the underside and is integrally coupled to the support portion 110 or the side portion 120 in a detachable manner; And
The magnet support member 210 is integrally coupled to the support member 210 in a detachable manner and is magnetically coupled to the welding base materials 10 to magnetically support the bottom support member 210 to the welding base materials 10. [ (220). ≪ / RTI >
20. The method of claim 19,
Wherein the side portion 120 is coupled to the receiving portion 110 and the lower supporting member 210 is coupled to the lower surface of the receiving portion 110. [
20. The method of claim 19,
Wherein the side portion 120 is coupled to the side of the receiving portion 110 and the bottom supporting member 210 is coupled to the lower surface of the receiving portion 110.
20. The method of claim 19,
Wherein the side portion 120 is coupled to the side of the receiving portion 110 and the bottom support member 210 is coupled to the bottom of the side portion 120. [
23. The method of claim 22,
The support member 210,
An engaging portion 211 coupled to a lower surface of the side portion 120 in the width direction of the side portion 120,
A pair of extending portions 212 extending from the both ends of the coupling portion 211 to the lower portion of the welding base material 10,
And a magnet coupling part (213) to which the magnet (220) magnetically coupled with a lower surface of the welding base material (10) is coupled to an end of the extension part (212).
At least a part 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 side surface portion which is in contact with the side surface of the welding base materials 10 and is integrated with the receiving portion 110 A bottom support member (210) supporting the end tab (100) on the bottom surface and being integrally coupled to the end tab (100) so as to be detachable; And
The magnet support member 210 is integrally coupled to the support member 210 in a detachable manner and is magnetically coupled to the welding base materials 10 to magnetically support the bottom support member 210 to the welding base materials 10. [ (220). ≪ / RTI >
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11482359B2 (en) 2020-02-20 2022-10-25 Magnetic Mechanisms L.L.C. Detachable magnet device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11482359B2 (en) 2020-02-20 2022-10-25 Magnetic Mechanisms L.L.C. Detachable magnet device

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