KR101401286B1 - Ceramic backing material for welding - Google Patents

Ceramic backing material for welding Download PDF

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Publication number
KR101401286B1
KR101401286B1 KR1020120135955A KR20120135955A KR101401286B1 KR 101401286 B1 KR101401286 B1 KR 101401286B1 KR 1020120135955 A KR1020120135955 A KR 1020120135955A KR 20120135955 A KR20120135955 A KR 20120135955A KR 101401286 B1 KR101401286 B1 KR 101401286B1
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South Korea
Prior art keywords
welding
backing material
base material
inclined surfaces
shape
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KR1020120135955A
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Korean (ko)
Inventor
진윤근
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현대중공업 주식회사
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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
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • 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
    • B23K5/00—Gas flame welding
    • B23K5/22—Auxiliary equipment, e.g. backings, guides
    • 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

Abstract

The present invention relates to a ceramic backing material for welding which is inserted into any one side of a welded portion having an X-shaped groove of a base material for butt welding to prevent molten metal from flowing down during welding on the other side of the welded portion. The ceramic backing material has V-shaped inclined surfaces on both sides thereof in such a manner as to come into contact with the groove face of the welded portion of the base material for butt welding, has a depressed curved surface on the upper surface where both side inclined surfaces converge, and has a flat surface on the lower surface expanded from both side inclined surfaces thereof. According to the present invention, the ceramic backing material has both side inclined surfaces coming into contact with the groove face of the welding base material at the same angle, thus allowing the backing material to be brought into close contact with the groove face of the base material, and further, the upper surface of the backing material is made into a curved surface extended to the end of the groove face of the welding base material, thus preventing the molten metal from flowing down and at the same time forming good back bead welding to improve the quality of welding.

Description

용접용 세라믹 백킹재{Ceramic backing Material For Welding}{Ceramic backing material for welding}

본 발명은 용접용 세라믹 백킹재에 관한 것으로서, 보다 상세하게는 용접 모재의 개선면부와 접지되는 양측 경사면을 갖는 백킹재에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic backing material for welding, and more particularly, to a backing material having both inclined surfaces to be grounded and an improved surface of a welding base material.

일반적으로 용접이라 함은 접합하려는 두 금속재료 즉, 모재(base metal)의 접합부를 가열하여 용융 또는 반 용융상태로 하여 모재만으로 또는 모재와 용가재(filler metal)을 융합하여 접합하는 방법을 일컫는다.In general, welding refers to a method of joining two metal materials to be bonded, that is, a base metal, by heating them to melt or semi-melt, and then fusing the base metal alone or the filler metal with the base metal.

도 1은 종래기술의 세라믹 백킹재를 이용한 용접의 예를 도시한 개략도이다. 동 도면에서 보는 바와 같은 종래기술은 작은 판재를 연결하여 넓은 판을 형성하기 위한 용접작업을 행하기 전 인접되어 용접이 이루어지게 되는 모재(1)들은 상호 대향되는 일측으로 용접을 수행하기 위한 용접부(2,2')를 먼저 형성하게 되는데, 이러한 용접부(2,2')는 그 단면형상이 대략 'X' 자를 형성하여 양측으로 각각 'V' 자형으로 패인 용접 공간부를 가지게 된다. 이 곳을 따라 모재의 양면을 용접하게 된다.1 is a schematic view showing an example of welding using a ceramic backing material of the prior art. In the prior art as shown in the drawing, the preforms 1 to be welded adjacent to each other before a welding operation for connecting a small plate to form a wide plate are performed, and a welding portion The welding portions 2 and 2 'are formed in a shape of a substantially' X 'in cross-section so that they have welding space portions each having a' V 'shape on both sides. Both sides of the base material are welded along this place.

상기와 같이 모재에 용접을 행하게 되는 용접부(2,2')를 통상적으로 용접 개선 혹은 용접 개선면부라 한다.As described above, the welding portions (2, 2 ') to be welded to the base material are generally referred to as welding improvement or welding improvement.

이와 같은 종래기술에서는 모재(1)의 전, 후면 중 어느 일측을 먼저 용접하고 난 후, 나머지 반대측을 용접하여 전체적인 용접을 마무리하게 된다.In this conventional technique, either one of the front side and the rear side of the base material 1 is first welded, and then the other side is welded to complete the entire welding.

이때, 모재(1)의 'X'자 형상의 일측에 위치된 용접부(2,2')내에는 백킹재(100)를 설치함으써, 타측에서의 용접열에 의한 금속의 흘러내림을 방지하여 양호한 용접비드가 형성되도록하고 있다.At this time, the backing material 100 is installed in the welded portions 2 and 2 'positioned at one side of the' X 'shape of the base material 1, thereby preventing the metal from flowing down due to the welding heat at the other side, So that beads are formed.

이와 같이 용접면 반대측의 용접부(2,2') 개선 내에 설치되는 백킹재(100)는 무게가 가벼운 세라믹 백킹재(100)를 사용하고 있다.As described above, the backing material 100 installed in the welds 2, 2 'on the opposite side of the welding surface uses a ceramic backing material 100 having a light weight.

이와 같은 백킹재(100)는 도 1에서와 같이 단면형상이 원형인 막대형상을 갖는다.Such a backing material 100 has a rod shape having a circular sectional shape as shown in Fig.

그러나, 상기한 바와 같은 종래기술은 용접시 백킹재(100)가 용접부(2,2')의 개선면에 밀착되지 않아 용접 비이드(Bead)의 형성이 불균일한 문제가 있었다.
However, the above-described conventional technique has a problem that the backing material 100 is not brought into close contact with the improved surface of the welded portions 2 and 2 'during welding, resulting in non-uniform formation of weld beads.

종래기술의 문제점을 개선하기 위해 안출된 본 발명의 목적은 용접 모재의 개선면부와 접지되는 양측 경사면을 갖는 백킹재를 제공함으로써, 용접 비이드의 형성을 일정하게 하고 용접품질을 향상시키는데 있다.
SUMMARY OF THE INVENTION It is an object of the present invention, which is devised to solve the problems of the prior art, to provide a backing material having both inclined surfaces to be grounded and an improved surface of a welding base material, thereby making the formation of the welding bead uniform and improving the welding quality.

본 발명의 일측면에 따르면, 맞대기 용접용 모재의 'X'자 홈 형상으로 이루어진 용접부(2,2') 어느 일측에 삽입되어 다른 일측 용접부(2',2)의 용접 작업 시 용융금속의 흘러내림을 방지하도록 된 세라믹 백킹재(100)로서,상기 세라믹 백킹재(100)는, 맞대기 용접용 모재(1)의 용접부(2,2')의 개선면부(3,3')에 접하는 "V"자형 양측 경사면(110)이 형성되고, 상기 양측 경사면(110)이 수렴되는 상부면(120)은 양단은 용접 모재(1)의 상기 일측의 개선면부(3,3')의 끝단(4)에 각각 연결되고, 상기 경사면(110)은 상기 일측의 개선면부(3,3') 밀착되어, 상기 일측의 개선면부는 상기 끝단으로부터 일정거리까지 상기 세라믹 백킹재와 밀착되며,상기 상부면(120)은 만곡진 곡면형태를 이루고, 상기 끝단(4)에 연결되는 다른 일측의 용접부(2',2)의 바닥면은 상부면(120)의 형상에 따라 만곡진 곡면 형태로 형성되어, 용접 작업 시 상기 만곡진 곡면의 형상에 대응되도록 돌출된 곡면으로 백비드를 형성하며, 상기 양측 경사면(110)의 확산되는 하부면(130)을 평면으로 형성하는 것을 특징으로 하는 용접용 세라믹 백킹재가 제공될 수 있다.According to one aspect of the present invention, molten metal flows during the welding operation of the other one-side welded part (2 ', 2) by being inserted into one side of the welded part (2, 2' The ceramic backing material 100 is a ceramic backing material 100 which is prevented from falling down and which is in contact with the improved surface portions 3 and 3 'of the welded portions 2 and 2' of the butt- Shaped side slopes 110 are formed and both ends of the upper surface 120 on which the both side slopes 110 are converged are connected to both ends 4 of the improved surface portion 3, 3 ' And the inclined surface 110 is in close contact with the one improvement surface portion 3,3 'so that the improvement surface portion of one side is in close contact with the ceramic backing material from the end to a certain distance, and the upper surface 120 And the bottom surface of the welding portion 2 ', 2 on the other side connected to the end portion 4 is formed in a curved surface shape according to the shape of the upper surface 120 A back bead is formed with a curved surface protruding to correspond to the shape of the curved curved surface during the welding operation and the lower surface 130 of the both side inclined surfaces 110 to be diffused is formed as a flat surface A ceramic backing material for welding may be provided.

또한, 상기 양측 경사면의 각도를 30~40도 범위로 형성할 수 있다.In addition, the angles of the both inclined surfaces may be in the range of 30 to 40 degrees.

또한, 상기 상부면은 폭 대비 깊이의 비가 4:1.2의 만곡진 곡면을 갖도록 할 수 있다.In addition, the upper surface may have a curved surface having a width to depth ratio of 4: 1.2.

또한, 상기 상부면의 폭 대비 상부면으로부터 하부면까지의 높이 비를 1:3.7~4가 되도록 할 수 있다.
In addition, the height ratio from the upper surface to the lower surface with respect to the width of the upper surface may be 1: 3.7 to 4.

본 발명은 용접 모재의 개선면부와 동일한 각도로 접지되는 양측 경사면을 형성함으로써 백킹재가 모재의 개선면부에 밀착되도록 할 수 있고, 백킹재의 상부면을 용접 모재의 개선면부 끝단에 연장되는 만곡진 곡면형태로 제작함으로써, 용융금속이 흘러내리는 것을 방지하는 동시에 양호한 백 비드를 형성함으로써, 용접품질이 향상되는 효과를 갖는다.
The present invention can form a double-sided inclined surface that is grounded at the same angle as the improved surface of the welding base material, so that the backing material can be brought into close contact with the improved surface portion of the base material and the upper surface of the backing material is formed into a curved curved surface shape The molten metal is prevented from flowing down and a good back bead is formed, whereby the welding quality is improved.

도 1은 종래기술의 세라믹 백킹재를 이용한 용접의 예를 도시한 개략도.
도 2는 본 발명에 따른 세라믹 백킹재를 이용한 용접 예를 도시한 예시도.
도 3은 본 발명에 따른 세라믹 백킹재의 단면구조를 도시한 단면도.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing an example of welding using a ceramic backing material of the prior art; Fig.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ceramic backing material.
3 is a sectional view showing a cross-sectional structure of a ceramic backing material according to the present invention.

이하, 본 발명의 바람직한 실시예에 대해 첨부된 도면을 참조하여 자세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 세라믹 백킹재를 이용한 용접 예를 도시한 예시도이고, 도 3은 본 발명에 따른 세라믹 백킹재의 단면구조를 도시한 단면도이다.FIG. 2 is an exemplary view showing a welding example using a ceramic backing material according to the present invention, and FIG. 3 is a sectional view showing a cross-sectional structure of a ceramic backing material according to the present invention.

동 도면에서 보는 바와 같은 본 발명은 맞대기 용접용 모재(1)의 'X'자 홈 형상으로 이루어진 용접부(2,2') 어느 일측에 삽입되어 다른 일측 용접부(2,2')의 용접 작업 시 용융금속의 흘러내림을 방지하도록 된 세라믹 백킹재(100)에 관한 것이다.As shown in the drawing, the present invention is characterized in that when welding is carried out on one side of a welded portion (2, 2 ') having an "X" groove shape of a butt joint base material (1) To a ceramic backing material (100) for preventing molten metal from flowing down.

상기 세락믹 백킹재(100)는 길이방향으로 연장되는 선형 막대형태로 제작되는데, 단면형상을 개선함으로써, 종래기술에 비해 용접품질이 향상되도록 하는 것이다.The ceramic backing material 100 is formed in the shape of a linear bar extending in the longitudinal direction. The improvement of the cross-sectional shape improves the welding quality compared to the prior art.

상기 세라믹 백킹재(100)의 단면 형상에 대해 설명하면 다음과 같다.The cross-sectional shape of the ceramic backing material 100 will now be described.

본 발명에 따른 세라믹 백킹재(100)는 맞대기 용접용 모재(1)의 용접부(2,2') 개선면부(3,3')에 접하는 "V"자형 양측 경사면(110)을 형성하며, 상기 양측 경사면(110)의 수렴되는 상부면(120)을 함몰형 곡면으로 형성하고, 상기 양측 경사면(110)의 확산되는 하부면(130)을 평면으로 형성하게 된다.The ceramic backing material 100 according to the present invention forms a "V" -shaped both side inclined surface 110 in contact with the welded portions 2, 2 'of the butt welded base material 1, The converging upper surface 120 of the both side inclined surfaces 110 is formed into a depressed curved surface and the lower surface 130 of the both side inclined surfaces 110 is formed as a flat surface.

이와 같은 세라믹 백킹재(100)의 단면은 사다리꼴 형상과 유사한 형상을 갖는 것으로서, 용접용 모재(1)의 상부 또는 하부 용접부(2,2')의 각 개선면부(3,3')에 경사면(110)이 밀착되고 도 2, 3에서와 같이 모재(1)의 하부 용접부(2,2')에 가접된 상태로 상부 용접부(2,2')의 용접을 지지하게 된다.The cross section of the ceramic backing member 100 has a shape similar to a trapezoidal shape and is formed on each of the improved surface portions 3 and 3 'of the upper or lower welded portions 2 and 2' And the welding of the upper welding portions 2 and 2 'is supported in a state where the upper welding portions 2 and 2' are adhered to the lower welding portions 2 and 2 'of the base material 1 as shown in FIGS.

이때, 상기 세라믹 백킹재(100)의 단면은 양측 경사면(110)의 각도를 30~40도 범위로 형성하는 것이 바람직하다.At this time, it is preferable that the cross-section of the ceramic backing material 100 be formed in a range of 30 to 40 degrees with respect to both side inclined surfaces 110.

이때, 경사면(110)의 각도가 30도 이하일 경우에는 용착량이 부족하여 접합력이 떨어지거나 용접결함이 발생되는 문제가 발생되며, 40도 이상일 경우에는 용착량이 과도하게 증가하여 용접시간 및 비용이 증가하는 문제가 발생될 수 있다.At this time, if the angle of the inclined surface 110 is 30 degrees or less, there is a problem that the welding amount is decreased and welding defect is generated. If the angle is 40 degrees or more, the welding amount is excessively increased and welding time and cost are increased Problems can arise.

또한, 상기 백킹재(100)의 상부면(120)이 모재(1) 상부 용접부(2,2')의 개선면부(3,3') 끝단을 연결하는 바닥면을 형성하도록 함으로써, 용융금속이 흘러내리는 것을 방지하게 된다.The upper surface 120 of the backing material 100 forms a bottom surface connecting the ends of the improved surface portions 3, 3 'of the upper welded portion 2, 2' of the base material 1, Thereby preventing it from flowing down.

이와 같은 백킹재(100)의 상부면(120)은 폭 대비 깊이의 비가 4:1.2의 만곡진 곡면을 갖도록 할 수 있는데, 이는 백비드(back bead)의 형상을 만곡진 형태가 되도록 유도함으로써, 양호한 표면비드를 형성할 수 있고, 용입불량 문제를 개선하게 된다.The top surface 120 of the backing material 100 may have a curved surface having a width to depth ratio of 4: 1.2, which induces the shape of the back bead to be curved, Good surface beads can be formed, and the problem of poor penetration can be solved.

또한, 상기 백킹재(100)의 상부면(120)의 폭 대비 상부면(120)으로부터 하부면(130)까지의 높이 비를 1:3.7~4가 되도록 할 수 있다.The height ratio of the upper surface 120 to the lower surface 130 of the backing material 100 may be 1: 3.7 to 4.

그리고, 상기 백킹재(100)의 하부면(130)과 양측 경사면(110)이 만나는 부위에 라운드(140)를 형성할 수 있다.The round 140 may be formed at a portion where the lower surface 130 of the backing member 100 and the both inclined surfaces 110 meet.

상기한 바와 같은 특징을 갖는 본 발명의 백킹재(100)를 이용한 용접작업에 대해 설명하면 다음과 같다.The welding operation using the backing material 100 of the present invention having the above-described characteristics will now be described.

먼저, 맞대기 용접용 모재(1)가 각각 준비된다. 각각의 모재(1)는 각각 상, 하부 용접부(2,2')를 형성하고, 상기 용접부(2,2')는 일정한 각도를 갖는 개선면부(3,3')를 형성한다.First, a butt welding base material 1 is prepared. Each of the base materials 1 forms upper and lower welded portions 2 and 2 ', respectively, and the welded portions 2 and 2' form an improved surface portion 3, 3 'having a constant angle.

이와 같은 각각의 모재(1)를 일정간격 이격시켜 배치하게 되는데, 이때의 배치 단면의 형상을 보면, 모재(1)의 상, 하부측에 각각 "V"자홈을 형성한 것과 같은 형태를 갖는다.Each of the base materials 1 is arranged at a predetermined distance apart. The shape of the arrangement cross-section at this time is the same as that of forming the "V" groove on the upper and lower sides of the base material 1.

이와 같은 상태에서 하부 용접부(2,2')에 본 발명의 백킹재(100)를 위치시켜 가접하게 된다. 이때, 백킹재(100)의 상부면(120)의 폭과 모재(1) 간의 간격이 일치되도록 하며, 이후, 상부 용접부(2,2')를 용접한다.In this state, the backing material 100 of the present invention is placed in contact with the lower welded portion 2, 2 '. At this time, the width of the upper surface 120 of the backing material 100 is made to coincide with the distance between the base material 1 and then the upper welded portion 2, 2 'is welded.

상부 용접부(2,2')의 용접작업이 완료되면, 백킹재(100)를 제거한 상태에서 하부 용접부(2,2')에 대한 용접작업을 시행하도록 한다.When the welding operation of the upper welded part 2, 2 'is completed, the welding operation is performed on the lower welded part 2, 2' with the backing material 100 removed.

앞서 살펴본 바와 같은 본 발명은 용접 모재의 개선면부와 동일한 각도로 접지되는 양측 경사면을 형성함으로써 백킹재가 모재의 개선면부에 밀착되도록 할 수 있고, 백킹재의 상부면을 용접 모재의 개선면부 끝단에 연장되는 만곡진 곡면형태로 제작함으로써, 용융금속이 흘러내리는 것을 방지하는 동시에 양호한 백 비드를 형성함으로써, 용접품질이 향상되는 이점을 갖는다.As described above, according to the present invention, the backing material can be brought into close contact with the improved surface portion of the base material by forming both side inclined surfaces that are grounded at the same angle as the improved surface portion of the welding base material, and the upper surface of the backing material is extended The curved surface is formed in a curved shape to prevent the molten metal from flowing down and to form a good back bead, thereby improving the quality of welding.

이상 첨부된 도면을 참조하여 본 발명의 실시예를 설명하였지만, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자는 본 발명이 그 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 예를 들어 당업자는 각 구성요소의 재질, 크기 등을 적용 분야에 따라 변경하거나, 실시형태들을 조합 또는 치환하여 본 발명의 실시예에 명확하게 개시되지 않은 형태로 실시할 수 있으나, 이 역시 본 발명의 범위를 벗어나지 않는 것이다. 그러므로 이상에서 기술한 실시예는 모든 면에서 예시적인 것으로 한정적인 것으로 이해해서는 안되며, 이러한 변형된 실시예는 본 발명의 특허청구범위에 기재된 기술사상에 포함된다고 하여야 할 것이다.
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not clearly disclosed in the embodiment of the present invention, Of the range. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and that such modified embodiments are included in the technical idea described in the claims of the present invention.

1: 모재
2: 상부 용접부
2': 하부 용접부
3: 상부 개선면부
3': 하부 개선면부
4 : 끝단
100: 백킹재
110: 경사면
120: 상부면
130: 하부면
140: 라운드1: base metal
2: upper welding part
2 ': Lower weld
3:
3 ': bottom improved surface
4: End
100: backing material
110:
120: upper surface
130: Lower surface
140: Round

Claims (4)

맞대기 용접용 모재(1)의 'X'자 홈 형상으로 이루어진 용접부(2,2') 어느 일측에 삽입되어 다른 일측 용접부(2',2)의 용접 작업 시 용융금속의 흘러내림을 방지하도록 된 세라믹 백킹재(100)로서,
상기 세라믹 백킹재(100)는, 맞대기 용접용 모재(1)의 용접부(2,2')의 개선면부(3,3')에 접하는 "V"자형 양측 경사면(110)이 형성되고,
상기 양측 경사면(110)이 수렴되는 상부면(120)은 양단은 용접 모재(1)의 상기 일측의 개선면부(3,3')의 끝단(4)에 각각 연결되고, 상기 경사면(110)은 상기 일측의 개선면부(3,3') 밀착되어, 상기 일측의 개선면부는 상기 끝단으로부터 일정거리까지 상기 세라믹 백킹재와 밀착되며,
상기 상부면(120)은 만곡진 곡면형태를 이루고, 상기 끝단(4)에 연결되는 다른 일측의 용접부(2',2)의 바닥면은 상부면(120)의 형상에 따라 만곡진 곡면 형태로 형성되어, 용접 작업 시 상기 만곡진 곡면의 형상에 대응되도록 돌출된 곡면으로 백비드를 형성하며,
상기 양측 경사면(110)의 확산되는 하부면(130)을 평면으로 형성하는 것을 특징으로 하는 용접용 세라믹 백킹재.Is inserted into one side of the welding part (2, 2 ') formed in the' X 'groove shape of the butt welding base material (1) to prevent the molten metal from flowing down during welding work of the other side welding part (2' As the ceramic backing material 100,
The ceramic backing material 100 is formed by forming both side slopes 110 of a V shape in contact with the improved surface portions 3 and 3 'of welded portions 2 and 2' of the butt material 1,
The upper surface 120 on which the both side inclined surfaces 110 are converged is connected at both ends to the end 4 of the improved surface portion 3,3 'of the one side of the weld base material 1, Wherein the one improvement surface portion is in close contact with the ceramic backing member to a certain distance from the end surface,
The bottom surface of the welding part 2 ', 2 on the other side connected to the end 4 is formed into a curved surface shape according to the shape of the upper surface 120 A back bead is formed by a curved surface protruded to correspond to the shape of the curved curved surface during the welding operation,
Wherein a lower surface (130) of the both side inclined surfaces (110) is formed as a flat surface. 제1항에 있어서,
상기 양측 경사면(110)의 각도를 30~40도 범위로 형성하는 것을 특징으로 하는 용접용 세라믹 백킹재.
The method according to claim 1,
Wherein an angle of the both inclined surfaces (110) is in a range of 30 to 40 degrees.
제1항에 있어서,
상기 상부면(120)은 폭 대비 깊이의 비가 4:1.2의 만곡진 곡면을 갖는 것을 특징으로 하는 용접용 세라믹 백킹재.
The method according to claim 1,
Wherein the upper surface (120) has a curved surface with a width to depth ratio of 4: 1.2.
제1항에 있어서,
상기 상부면(120)의 폭 대비 상부면(120)으로부터 하부면(130)까지의 높이 비를 1:3.7~4가 되도록 하는 것을 특징으로 하는 용접용 세라믹 백킹재.The method according to claim 1,
Wherein a height ratio from a top surface (120) to a bottom surface (130) of the top surface (120) is 1: 3.7 to 4.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101875709B1 (en) * 2016-12-23 2018-07-06 삼성물산(주) LNG Inner Shell Horizontal Auto Welding Backing material and Welding Method using thereof
KR20180078101A (en) * 2016-12-29 2018-07-09 대우조선해양 주식회사 Flexible Glass fiber Backing Method of welding X groove
KR20190020945A (en) * 2017-08-22 2019-03-05 주식회사 포스코 Copper shoe for electro gas arc welding and welding method using the same

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Publication number Priority date Publication date Assignee Title
KR900005840Y1 (en) * 1987-12-11 1990-06-30 대우조선공업 주식회사 Weld backing
KR19990052136A (en) * 1997-12-22 1999-07-05 김형벽 Ceramic backing material for narrowing and improvement

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Publication number Priority date Publication date Assignee Title
KR900005840Y1 (en) * 1987-12-11 1990-06-30 대우조선공업 주식회사 Weld backing
KR19990052136A (en) * 1997-12-22 1999-07-05 김형벽 Ceramic backing material for narrowing and improvement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101875709B1 (en) * 2016-12-23 2018-07-06 삼성물산(주) LNG Inner Shell Horizontal Auto Welding Backing material and Welding Method using thereof
KR20180078101A (en) * 2016-12-29 2018-07-09 대우조선해양 주식회사 Flexible Glass fiber Backing Method of welding X groove
KR102599227B1 (en) * 2016-12-29 2023-11-08 한화오션 주식회사 Flexible Glass fiber Backing Method of welding X groove
KR20190020945A (en) * 2017-08-22 2019-03-05 주식회사 포스코 Copper shoe for electro gas arc welding and welding method using the same
KR102015508B1 (en) * 2017-08-22 2019-08-28 주식회사 포스코 Copper shoe for electro gas arc welding and welding method using the same

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