KR20120074149A - Metal cored weld wire and method for manufacturing the same - Google Patents

Metal cored weld wire and method for manufacturing the same Download PDF

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KR20120074149A
KR20120074149A KR1020100136112A KR20100136112A KR20120074149A KR 20120074149 A KR20120074149 A KR 20120074149A KR 1020100136112 A KR1020100136112 A KR 1020100136112A KR 20100136112 A KR20100136112 A KR 20100136112A KR 20120074149 A KR20120074149 A KR 20120074149A
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South Korea
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wire
metal
core metal
steel
welding
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KR1020100136112A
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Korean (ko)
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KR101220696B1 (en
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한일욱
이봉근
정보영
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주식회사 포스코
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • B23K35/0261—Rods, electrodes, wires
    • B23K35/0266—Rods, electrodes, wires flux-cored
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • B23K35/0261—Rods, electrodes, wires
    • B23K35/0272—Rods, electrodes, wires with more than one layer of coating or sheathing material
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • B23K35/0261—Rods, electrodes, wires
    • B23K35/0283—Rods, electrodes, wires multi-cored; multiple
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3026—Mn as the principal constituent
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3033—Ni as the principal constituent
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40—Making wire or rods for soldering or welding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

PURPOSE: A metal cored welding wire and a manufacturing method thereof are provided to facilitate the content change for alloy elements. CONSTITUTION: A metal cored welding wire comprises a core metal wire(120) and a skin(110). The core metal wire includes alloy elements. The skin covers a core metal wire. The core metal wire is composed of one or more strands. A flux or metal powder(130) is added between the core metal wire and the skin. The flux or metal powder includes deoxidizer, arc stabilizer, or slag forming materials.

Description

메탈 코어드 용접 와이어 및 그 제조방법{METAL CORED WELD WIRE AND METHOD FOR MANUFACTURING THE SAME}Metal cored welding wire and its manufacturing method {METAL CORED WELD WIRE AND METHOD FOR MANUFACTURING THE SAME}

본 발명은 용접 와이어에 관한 것으로써, 보다 상세하게는 용접에 필요한 합금원소를 다량 함유할 수 있는 메탈 코어드 용접 와이어와 이를 제조하는 방법에 관한 것이다.
The present invention relates to a welding wire, and more particularly to a metal cored welding wire that can contain a large amount of alloying elements required for welding and a method of manufacturing the same.

고규소강(전기강판), 고망간강 및 고니켈강 등 고합금강이나 특수강과 같이 다량의 합금성분을 함유한 강을 모재로 하여 용접을 행하는 경우, 모재의 특성에 따라 다량의 합금원소가 함유된 용접 와이어를 사용되어야 한다.
When welding with high alloy steel such as high silicon steel (electric steel sheet), high manganese steel and high nickel steel or steel containing a large amount of alloying components such as special steel, welding wires containing a large amount of alloying elements depending on the characteristics of the base metal Should be used.

기존에 용접 와이어로 사용되는 것으로는 외피내에 플럭스(flux) 또는 금속분말을 충진한 플럭스 코어드 용접 와이어가 사용되어 왔다. 이러한 플럭스 코어드 용접 와이어는 상기 플럭스나 금속분말을 외피내에 충진한 후, 압출 또는 인발을 통해 일정한 세선으로 만들어진다. 상기 플럭스 코어드 용접 와이어에 포함될 수 있는 합금원소는 최대 25중량%에 불과하여, 상기와 같은 고합금강이나 특수강의 용접의 사용에는 부적합한 문제가 있다.
Conventionally, as a welding wire, a flux cored welding wire filled with a flux or metal powder in an outer shell has been used. The flux cored welding wire is made of a constant fine wire through the extrusion or drawing after filling the flux or metal powder into the shell. The alloy element that can be included in the flux cored welding wire is only 25% by weight at most, there is a problem that is not suitable for the use of welding of high alloy steel or special steel as described above.

이러한 문제를 해결하기 위해서, 솔리드 용접 와이어가 있다. 이러한 솔리드 용접 와이어는 다량의 합금원소를 포함하는 합금을 제조하여, 이를 압출 또는 인발하여 세선을 제조함으로서 만들어진다.
To solve this problem, there is a solid welding wire. Such a solid welding wire is made by manufacturing an alloy including a large amount of alloying elements, and extruding or drawing it to produce fine wire.

그러나, 이러한 솔리드 용접 와이어는 합금원소의 변경이 용이하지 않아, 소량 다품종의 용접 와이어를 생산하는데 어려움이 있다. 또한, 솔리드 용접 와이어의 특성상 용접시 용접용 가스가 고가의 아르곤(Ar), 질소(N2) 및 헬륨(He) 등을 이용하여 용접을 행하거나, 서브 머지드 아크 용접(Submerged arc welding, SAW)을 이용할 수 밖에 없고, 이러한 SAW 용접은 전자세 용접이 불가능하고, 용접시 높은 입열량이 필요하다는 단점이 있다.
However, such a solid welding wire is not easy to change the alloying elements, it is difficult to produce a small amount of a variety of welding wire. In addition, due to the characteristics of the solid welding wire, the welding gas is welded using expensive argon (Ar), nitrogen (N 2 ), helium (He), or submerged arc welding (SAW). ), And SAW welding cannot be carried out in electron beam welding, and high heat input is required for welding.

이에, 상기 고합금강이나 특수강에 사용될 수 있고, 합금원소를 25중량% 이상 함유함과 동시에 다양한 용접방법에 적용될 수 있는 용접 와이어에 대한 요구가 절실히 요구되고 있는 실정이다.
Therefore, there is an urgent need for a welding wire that can be used in the high alloy steel or special steel, and contains 25 wt% or more of alloying elements and can be applied to various welding methods.

본 발명의 일측면은 합금원소를 다량 함유하고, 다양한 용접방법에 용이하게 적용가능한 메탈 코어드 용접 와이어 및 이를 제조하는 방법을 제공하고자 하는 것이다.
One aspect of the present invention is to provide a metal cored welding wire containing a large amount of alloying elements, and easily applicable to various welding methods and a method of manufacturing the same.

본 발명은 합금원소를 포함하는 코어 메탈 와이어; 및The present invention is a core metal wire containing an alloy element; And

상기 코어 메탈 와이어를 감싸는 외피을 포함하는 메탈 코어드 와이어를 제공한다.
It provides a metal cored wire including an outer shell surrounding the core metal wire.

또한, 본 발명은 외피 제조를 위한 강스트립과 코어 메탈 와이어를 준비하는 단계;In addition, the present invention comprises the steps of preparing a steel strip and core metal wire for the outer shell manufacturing;

상기 강스트립과 코어 메탈 와이어를 세척하는 단계;Washing the steel strip and the core metal wire;

상기 코어 메탈 와이어를 감싸도록 상기 강스트립을 관형으로 성형하는 단계; 및Forming the steel strip into a tubular shape so as to surround the core metal wire; And

상기 코어 메탈 와이어를 포함하는 강스트립을 드로잉하여 용접 와이어를 제조하는 단계를 포함하는 메탈 코어드 용접 와이어의 제조방법을 제공한다.
It provides a method for manufacturing a metal cored welding wire comprising the step of manufacturing a welding wire by drawing a steel strip including the core metal wire.

본 발명에 의하면 합금원소를 다량 함유한 용접 와이어를 제공함으로서, 고합금강이나 특수강의 용접에 손쉽게 적용가능하고, 다양한 용접방법에 적용 가능하여 높은 상업적 가치를 창출할 수 있다는 장점이 있다.
According to the present invention, by providing a welding wire containing a large amount of alloying elements, it can be easily applied to welding of high alloy steel or special steel, and can be applied to various welding methods to create a high commercial value.

도 1의 (a) 및 (b)는 각각 본 발명 용접 와이어의 일태양의 단면을 나타낸 모식도임.
도 2는 본 발명 용접 와이어의 제조방법을 나타낸 모식도임.(A) and (b) is a schematic diagram which shows the cross section of one aspect of the welding wire of this invention, respectively.
Figure 2 is a schematic diagram showing a manufacturing method of the welding wire of the present invention.

이하, 본 발명에 대하여 상세히 설명한다.
Hereinafter, the present invention will be described in detail.

먼저, 도 1을 참고하여 본 발명의 용접 와이어에 대하여 상세히 설명한다. 상기 도 1은 본 발명의 이해를 위한 것으로, 도 1에 의해서 본 발명이 한정되는 것은 아니다. 본 발명에서 코어 메탈 와이어와 용접 와이어는 구분된다. 즉, 용접 와이어는 코어 메탈 와이어와 이를 감싸는 외피를 의미한다.
First, the welding wire of the present invention will be described in detail with reference to FIG. 1. 1 is for understanding the present invention, and the present invention is not limited by FIG. In the present invention, the core metal wire and the welding wire are distinguished. In other words, the welding wire refers to the core metal wire and the shell surrounding it.

도 1(a)에 나타난 바와 같이, 본 발명의 용접 와이어는 합금원소를 포함하는 코어 메탈 와이어(120)와 상기 코어 메탈 와이어(120)를 감싸는 외피(110)을 포함한다. As shown in Figure 1 (a), the welding wire of the present invention includes a core metal wire 120 including the alloying element and the outer shell 110 surrounding the core metal wire 120.

상기 합금원소는 고규소강(전기강판), 고망간강 및 고니켈강 등 고합금강이나 특수강 등의 용접시에 모재와의 조성 및 물성 차이를 최소화하기 위한 원소를 의미한다. 즉, 고규소강(전기강판), 고망간강 및 고니켈강 등 고합금강이나 특수강 등의 용접시 용접이음부의 강도, 인성 및 내식성 등이 모재에 비해 동일하거나 우위한 수준을 유지하기 위한 원소를 의미한다.
The alloy element refers to an element for minimizing the difference in composition and physical properties with a base metal during welding of high alloy steel or special steel such as high silicon steel (electric steel sheet), high manganese steel and high nickel steel. That is, it means an element to maintain the same or superior level of strength, toughness and corrosion resistance of the welded joint when welding high alloy steel such as high silicon steel (electric steel sheet), high manganese steel and high nickel steel or special steel, etc. .

상기 코어 메탈 와이어(120)는 하나 이상의 가닥으로 이루어지는 것이 바람직하다. 상기 코어 메탈 와이어(120)를 한 종류의 합금원소가 아닌 2 이상이 합금원소가 요구되는 경우(예를 들어, Ni과 Mn 두개의 합금원소가 필요한 경우)에는 서로 다른 성분의 합금원소를 갖는 2 이상의 가닥으로 코어 메탈 와이어를 제조하여 동시에 넣으면 2 이상의 합금원소를 충족시킬 수 있기 때문이다.
The core metal wire 120 is preferably made of one or more strands. When two or more alloy elements of the core metal wire 120 are not one kind of alloy element (for example, when two alloy elements of Ni and Mn are required), two elements having alloy elements of different components may be used. This is because if the core metal wire is manufactured and put at the same time with the above strands, two or more alloying elements can be satisfied.

상기 외피(110)는 강재로서, Fe를 주성분으로 하고, C, Mn, Si 등의 성분을 하나 이상 함유하는 강스트립으로 제조된다. 상기 외피는 통상의 플럭스 코어드 용접 와이어에서 사용되는 것이면 족하고, 그 종류를 특별히 한정하는 것은 아니다.
The outer shell 110 is made of a steel strip containing Fe as a main component and one or more components such as C, Mn, and Si. The outer shell is sufficient as long as it is used in a conventional flux cored welding wire, and the type thereof is not particularly limited.

한편, 도 1 (b)에 나타난 바와 같이, 본 발명의 용접 와이어는 상기 코어 메탈 와이어(120)와 외피(110)사이에 플럭스 또는 금속분말(130)가 충진되는 것이 바람직하다. 상기 플럭스는 탈산제, 아크 안정제 또는 슬래그 형성제를 포함하여, 용접시 작업의 안정성을 높이고, 보다 높은 용접 효율을 확보하기 위함이다.
On the other hand, as shown in Figure 1 (b), the welding wire of the present invention is preferably filled with a flux or metal powder 130 between the core metal wire 120 and the shell 110. The flux includes a deoxidizer, an arc stabilizer or a slag forming agent, to increase the stability of the work during welding and to ensure higher welding efficiency.

상기 금속분말은 상기 탈산제, 아크 안정제 또는 슬래그 형성제 뿐만 아니라, 모재와의 용접에 필요한 주요 합금원소를 더 포함할 수 있다. 즉, 상기 코어 메탈 와이어(120)외에 추가적 필요한 합금원소가 있는 경우, 이를 공급하는 역할을 한다.
The metal powder may further include not only the deoxidizer, the arc stabilizer or the slag forming agent, but also major alloying elements required for welding with the base material. That is, if there is an additional alloy element other than the core metal wire 120, it serves to supply it.

본 발명의 메탈 코어드 용접 와이어는 종래의 플럭스 코어드 용접 와이어 비해 다량의 합금원소를 함유할 수 있고, 솔리드 용접 와이어 비해 낮은 입열량 조건에서 전자세 용접이 가능하며, 합금원소의 함량변화를 용이하게 할 수 있다는 장점을 갖는다.
The metal cored welding wire of the present invention may contain a large amount of alloying elements compared to the conventional flux cored welding wires, and may be subjected to electron thin welding under low heat input conditions compared to solid welding wires, and easily change the content of alloying elements. Has the advantage of being able to.

이하, 도 2를 참조하여 본 발명의 용접 와이어 제조방법에 대하여 상세히 설명한다. 도 2는 본 발명의 이해를 위한 것일 뿐, 도 2에 의해서 본 발명이 한정되는 것은 아니다.
Hereinafter, a method of manufacturing a welding wire of the present invention will be described in detail with reference to FIG. 2. 2 is only for understanding the present invention, the present invention is not limited by the FIG.

먼저, 외피 제조를 위한 강스트립과 코어 메탈 와이어를 준비한다(A단계). 상기 강스트립은 용접 와이어의 외피를 형성하기 위한 것으로써, 전술한 바와 같이 Fe를 주성분으로 하고, C, Mn, Si 등의 성분을 하나 이상 함유하는 박판인 것이 바람직하다.
First, to prepare a steel strip and core metal wire for the outer skin (step A). The steel strip is for forming the shell of the welding wire, and is preferably a thin plate containing Fe as a main component and one or more components such as C, Mn, and Si as described above.

상기 강스트립과 코어 메탈을 세척한다(B단계).
The steel strip and the core metal are washed (step B).

상기 코어 메탈 와이어를 감싸도록 상기 강스트립을 관형으로 성형한다(C단계). 먼저, 상기 강스트립은 U자형으로 성형한 후, 상기 U자형의 강스트립 내에 상기 코어 메탈 와어를 위치시키고, 최종 관형으로 제조한다. The steel strip is formed into a tubular shape so as to surround the core metal wire (step C). First, the steel strip is molded into a U-shape, and then the core metal wire is placed in the U-shaped steel strip and manufactured into a final tubular shape.

상기 U자형의 강스트립 내에 상기 코어 메탈 와이어을 위치시키는 동시에 플럭스 또는 금속분말을 추가적으로 투입할 수 있다.
The core metal wire may be placed in the U-shaped steel strip and additionally, flux or metal powder may be added.

상기 코어 메탈 와이어를 포함하는 강스트립을 드로잉(drawing)하여 최종 메탈 코어드 용접 와이어를 제조한다(D단계). 상기 드로잉(drawing)은 상기 관형으로 제조된 스트립은 코어 메탈 와이어와 플럭스가 충분히 투입될 수 있도록 관의 구경이 크게 된다(통상 4㎜). 이를 드로잉(drawing)하여 최종 구경을 용접 와이어에 적합하도록 만든다(통상 0.9~1.5㎜수준).
A steel strip including the core metal wire is drawn to prepare a final metal cored welding wire (step D). The drawing shows that the tubular strip has a large diameter (typically 4 mm) so that the core metal wire and the flux can be sufficiently introduced. This is then drawn to make the final aperture suitable for the welding wire (typically 0.9-1.5 mm).

추가적으로, 상기 메탈 코어드 용접 와이어를 오일 코팅하는 것이 바람직하다(E단계). 이는 스풀링(spooling)을 통한 와이어의 보관 및 이송시에 산화 등에 의한 와이어의 품질 저하를 방지하기 위한 것이다.
In addition, it is preferable to oil coat the metal cored welding wire (step E). This is to prevent deterioration of the wire quality due to oxidation during storage and transport of the wire through spooling.

110.....외피 120.....코어 메탈 와이어
130.....플럭스 또는 금속분말110 ..... Jacket 120 .... Core Metal Wire
130 ..... flux or metal powder

Claims (7)

합금원소를 포함하는 코어 메탈 와이어; 및
상기 코어 메탈 와이어를 감싸는 외피을 포함하는 메탈 코어드 와이어.
A core metal wire including an alloy element; And
Metal cored wire including an outer shell surrounding the core metal wire.
청구항 1에 있어서,
상기 코어 메탈 와이어는 하나 이상의 가닥으로 이루어진 메탈 코어드 와이어.
The method according to claim 1,
The core metal wire is a metal cored wire consisting of one or more strands.
청구항 1에 있어서,
상기 합금원소는 모재가 고규소강, 고망간강 또는 고니켈강의 고합금강인 경우에 상기 모재의 합금과 대비되는 Si, Mn 또는 Ni인 메탈 코어드 와이어.
The method according to claim 1,
The alloy element is a metal cored wire of Si, Mn or Ni in contrast to the alloy of the base material when the base material is a high alloy steel of high silicon steel, high manganese steel or high nickel steel.
청구항 1에 있어서,
상기 코어 메탈 와이어 및 외피 사이에 플럭스 또는 금속분말을 더 포함하는 메탈 코어드 와이어.
The method according to claim 1,
Metal cored wire further comprising a flux or a metal powder between the core metal wire and the shell.
청구항 4에 있어서,
상기 플럭스 또는 금속분말은 탈산제, 아크 안정제 또는 슬래그 형성제를 포함하는 메탈 코어드 와아어.
The method of claim 4,
The flux or metal powder is metal cored hua including a deoxidizer, arc stabilizer or slag forming agent.
외피 제조를 위한 강스트립과 코어 메탈 와이어를 준비하는 단계;
상기 강스트립과 코어 메탈 와이어를 세척하는 단계;
상기 코어 메탈 와이어를 감싸도록 상기 강스트립을 관형으로 성형하는 단계; 및
상기 코어 메탈 와이어를 포함하는 강스트립을 드로잉하여 용접 와이어를 제조하는 단계
를 포함하는 메탈 코어드 용접 와이어의 제조방법.
Preparing a steel strip and a core metal wire for manufacturing the shell;
Washing the steel strip and the core metal wire;
Forming the steel strip into a tubular shape so as to surround the core metal wire; And
Manufacturing a welding wire by drawing a steel strip including the core metal wire
Method of manufacturing a metal cored welding wire comprising a.
청구항 6에 있어서,
상기 용접 와이어에 오일 코팅을 행하는 단계를 더 포함하는 메탈 코어드 용접 와이어의 제조방법.The method of claim 6,
The method of manufacturing a metal-cored welding wire further comprising the step of performing an oil coating on the welding wire.
KR1020100136112A 2010-12-27 2010-12-27 Metal cored weld wire and method for manufacturing the same KR101220696B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102814594A (en) * 2012-09-10 2012-12-12 桂林市庆通有色金属工艺材料开发有限公司 Composite automatic aluminum brazing wire for aluminum alloy automobile frame and skin joint brazing and preparation method thereof
KR20150125843A (en) * 2014-04-30 2015-11-10 (주)부경대학교 기술지주회사 Filler metal shape for welding

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KR101812005B1 (en) 2016-03-25 2017-12-26 현대종합금속 주식회사 Metal Cored Arc Welding
KR101839410B1 (en) 2017-08-22 2018-04-27 정영수 A welding device for industrial apparatus and a process of welding industrial workpieces

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JPS59110178U (en) * 1983-01-17 1984-07-25 三井造船株式会社 Welding rods
JPH11226781A (en) 1998-02-20 1999-08-24 Nippon Steel Weld Prod & Eng Co Ltd Manufacture of flux cored wire for welding
KR100543693B1 (en) 2003-12-26 2006-01-20 고려용접봉 주식회사 Flux cored wire for overlaying of roll and method for overlaying of roll using thereof
KR20090090561A (en) * 2008-02-21 2009-08-26 주식회사 지엔텍 홀딩스 Flux cored welding wire and its fabricating method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102814594A (en) * 2012-09-10 2012-12-12 桂林市庆通有色金属工艺材料开发有限公司 Composite automatic aluminum brazing wire for aluminum alloy automobile frame and skin joint brazing and preparation method thereof
KR20150125843A (en) * 2014-04-30 2015-11-10 (주)부경대학교 기술지주회사 Filler metal shape for welding

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