KR100350068B1 - Conductor roll for electro galvanizing line having superior conductivity and corrosion resistance and manufacturing method thereof - Google Patents

Conductor roll for electro galvanizing line having superior conductivity and corrosion resistance and manufacturing method thereof Download PDF

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KR100350068B1
KR100350068B1 KR1019970071574A KR19970071574A KR100350068B1 KR 100350068 B1 KR100350068 B1 KR 100350068B1 KR 1019970071574 A KR1019970071574 A KR 1019970071574A KR 19970071574 A KR19970071574 A KR 19970071574A KR 100350068 B1 KR100350068 B1 KR 100350068B1
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South Korea
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band
main body
corrosion resistance
elastic polymer
inner band
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KR1019970071574A
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Korean (ko)
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KR19990052132A (en
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송진화
조원국
이상용
이규창
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주식회사 포스코
재단법인 포항산업과학연구원
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • C25D7/0657—Conducting rolls

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

PURPOSE: A conductor roll for electro galvanizing line having superior conductivity and corrosion resistance is provided to minimize required cost of the outer band to be exchanged and use the inner band and elastic polymer semi-permanently by coating an elastic polymer on the main body at both sides of inner and outer bands, and a manufacturing method thereof is provided. CONSTITUTION: The conductor roll for electro galvanizing line having superior conductivity and corrosion resistance is characterized in that an inner band(5) formed of an inexpensive ordinary steel product or stainless steel having superior conductivity and an outer band(6) formed of a material selected from Ni group alloy, Co group alloy and stainless steel having superior corrosion resistance are bonded to the central part of main body(1) in turn, and an elastic polymer(3) is fixed to both end parts of the main body(1) so that the elastic polymer(3) is closely adhered to both sides of the inner and outer bands(5,6). The manufacturing method thereof comprises the processes of fixing the inner band(5) to the main body(1) by heat shrink fitting the inner band(5) on the central part of the main body(1); fixing the outer band(6) to the inner band(5) by heat shrink fitting the outer band(6) having a higher thermal expansion coefficient than the inner band(5) on the outer circumference of the inner band(5); and coating the elastic polymer(3) on both end parts of the main body(1) so that the elastic polymer(3) is closely adhered to both sides of the inner and outer bands(5,6).

Description

전도성과 내부식성이 우수한 전기도금용 전극롤 및 그 제조방법Electroplating electrode roll with excellent conductivity and corrosion resistance and its manufacturing method

본 발명은 전도성과 내부식성이 우수한 전기도금용 전극롤 및 그 제조방법에 관한 것으로, 특히 본체에 제조비가 싼 내측밴드와 제조비가 비싼 외측밴드를 차례로 결합한 후, 내외측밴드 양측의 본체에 탄성중합체를 코팅함으로써 교환되는 외측밴드의 소요비용을 최소화하고, 내측밴드와 탄성중합체를 반영구적으로 사용할 수 있는 전도성과 내부식성이 우수한 전기도금용 전극롤 및 그 제조방법에 관한 것이다.The present invention relates to an electroplating electrode roll having excellent conductivity and corrosion resistance, and a method for manufacturing the same. In particular, after combining an inner band having a low manufacturing cost and an outer band having a high manufacturing cost, an elastomer is formed on both sides of the inner and outer bands. Minimizing the cost of the outer band to be replaced by coating, and relates to an electroplating electrode roll having excellent conductivity and corrosion resistance that can be used semi-permanently using the inner band and the elastomer and a method of manufacturing the same.

종래의 전기도금용 전극롤은 도1에 도시한 바와같이 강재로 만들어진 본체(1)중 그 외주면의 중앙부에 황산 또는 염화물과 같은 도금용액에 의해 부식되는 현상을 방지하기 위하여 내부식성이 우수한 금속재질의 밴드(2)로 피복되고, 본체중 양측편에 각각 우레탄과 같은 탄성중합체(3)로 피복되어 있다.Conventional electroplating electrode roll is a metal material with excellent corrosion resistance in order to prevent the phenomenon of corrosion by the plating solution such as sulfuric acid or chloride in the center of the outer peripheral surface of the body (1) made of steel as shown in FIG. It is covered with a band (2) of, and each side of the main body is covered with an elastomer (3) such as urethane.

여기서 전극롤의 본체(1)가 밴드(2)와 탄성중합체(3)로 피복되는 이유는 도금용액에 잠기는 전극롤 본체부분이 도금되거나, 본체의 표면이 도금용액에 의해 부식될 경우 더 이상 전극역할을 할 수 없기 때문이다.The reason why the main body 1 of the electrode roll is covered with the band 2 and the elastomer 3 is that the electrode roll body submerged in the plating solution is plated or the surface of the body is no longer corroded by the plating solution. It can't play a role.

이때 전극롤의 본체(1)를 밴드(2)와 탄성중합체(3)로 피복하는 것은 열팽창계수가 작은 금속재질의 밴드(2)와 상대적으로 열팽창가 큰 탄성중합체가 도금용액에 의해 가열되고, 이로써 각각의 열팽창량 차이가 발생되면서 서로 밀착성이 강해지며, 이 때문에 도금용액이 본체로 침투하지 못하게 된다.At this time, the main body 1 of the electrode roll is coated with the band 2 and the elastomer 3 so that the metal band 2 having a small coefficient of thermal expansion and the elastomer having a relatively high thermal expansion are heated by the plating solution. As the difference in thermal expansion occurs, adhesion between the two becomes stronger, which prevents the plating solution from penetrating into the main body.

그리고 종래의 전극롤 수명은 밴드(2) 및 탄성중합체(3)에 부착된 이물질을 제거하기 위하여 실시되는 연마작업으로 밴드와 탄성중합체의 두께가 감소되고, 이로써 밴드와 탄성중합체의 밀착성이 더 이상 유지될 수 없을 시점에 이르면 종료된다.And the conventional electrode roll life is reduced by the thickness of the band and the elastomer by a polishing operation performed to remove foreign matter attached to the band (2) and the elastomer (3), thereby the adhesion between the band and the elastomer is no longer It ends when it reaches a point that cannot be maintained.

그러나 종래에는 밴드(2)와 탄성중합체(3) 사이의 밀착성이 떨어지면서 도금용액이 그 사이를 통해 본체(1)로 침투되면 상당한 두께를 가진 밴드 및 탄성중합체를 동시에 폐기한 후, 다시 시공함으로써 상당한 경제적 손실을 초래하였다.However, conventionally, when the adhesion between the band 2 and the elastomer 3 is inferior and the plating solution penetrates into the main body 1 therebetween, the band and the elastomer having a considerable thickness are simultaneously discarded and then reconstructed. It caused a significant economic loss.

이러한 문제점을 개선하기 위해 종래에는 도2에 도시한 바와같이 연마작업으로 두께가 감소된 밴드(2-1)의 외주면에 탄성중합체(3)의 두께까지 내식성이 우수한 Ni기 합금 또는 Co기 합금으로 용사코팅(4)을 실시하였다.In order to solve this problem, conventionally, as shown in FIG. 2, Ni-based alloys or Co-based alloys having excellent corrosion resistance up to the thickness of the elastomer 3 on the outer circumferential surface of the band 2-1 reduced in thickness by polishing operations. A thermal spray coating (4) was performed.

그러나 이러한 종래의 용사코팅(4)은 그 비용이 고가이고, 시공 가능한 코팅두께에 한계가 있기 때문에 자주 실시하여야 하고, 용사코팅층 내에 기공과 같은 내부결함이 발생됨으로써 도금불량을 초래하게 되며, 이러한 이유로 실용성에 한계가 있었다.However, the conventional thermal spray coating (4) has to be performed frequently because its cost is expensive and there is a limit to the coating thickness that can be applied, and internal defects such as pores are generated in the thermal spray coating layer, thereby causing plating defects. There was a limit to practicality.

본 발명은 본체에 제조비가 싼 내측밴드와 제조비가 비싼 외측밴드를 차례로 결합한 후, 내외측밴드 양측의 본체에 탄성중합체를 코팅함으로써 교환되는 외측밴드의 소요비용을 최소화하고, 내측밴드와 탄성중합체를 반영구적으로 사용할 수 있는 전도성과 내부식성이 우수한 전기도금용 전극롤 및 그 제조방법을 제공함에 그 목적이 있다.According to the present invention, after combining the inner band with a low manufacturing cost and the outer band with a high manufacturing cost to the main body, the cost of the outer band to be exchanged is minimized by coating an elastomer on both sides of the inner and outer band, and the inner band and the elastomer are It is an object of the present invention to provide an electroplating electrode roll having excellent conductivity and corrosion resistance which can be used semi-permanently, and a method of manufacturing the same.

도1은 종래의 전기도금용 전극롤을 나타내는 단면도,1 is a cross-sectional view showing a conventional electrode roll for electroplating,

도2는 종래의 용사코팅된 전기도금용 전극롤을 나타내는 단면도,2 is a cross-sectional view showing a conventional thermally coated electrode roll for electroplating;

도3은 본 발명에 따른 전도성과 내부식성이 우수한 전기도금용 전극롤을 나타내는 단면도이다.3 is a cross-sectional view showing an electroplating electrode roll excellent in conductivity and corrosion resistance according to the present invention.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1: 본체 2,2-1: 밴드 3: 탄성중합체1: Body 2, 2-1: Band 3: Elastomer

4: 용사코팅 5: 내측밴드 6: 외측밴드4: spray coating 5: inner band 6: outer band

상기한 목적을 달성하기 위하여 본 발명은 본체의 중앙부에 내외측밴드가 차례로 결합되고, 상기 내외측밴드의 양측면에 밀착되도록 탄성중합체가 상기 본체의 양단부에 고정되는 전도성과 내부식성이 우수한 전기도금용 전극롤을 제공한다.In order to achieve the above object, the present invention is for electroplating excellent in conductivity and corrosion resistance that the inner and outer bands are sequentially coupled to the central portion of the main body, the elastomer is fixed to both ends of the main body so as to be in close contact with both sides of the inner and outer bands. An electrode roll is provided.

또한 본 발명은 본체의 중앙부에 내외측밴드가 열박음방법에 의해 결합되고, 상기 내외측밴드의 양측면에 밀착되도록 탄성중합체가 상기 본체의 양단부에 코팅되는 것을 특징으로 하는 전도성과 내부식성이 우수한 전기도금용 전극롤의 제조방법을 제공한다.In another aspect, the present invention is characterized in that the inner and outer bands are coupled to the central portion of the main body by a shrink fit method, and the elastomer is coated on both ends of the main body so as to be in close contact with both sides of the inner and outer bands. Provided is a method of manufacturing an electrode roll for plating.

도면을 참조하여 본 발명을 설명한다.The present invention will be described with reference to the drawings.

도3은 본 발명에 따른 전도성과 내부식성이 우수한 전기도금용 전극롤을 나타내는 단면도이다.3 is a cross-sectional view showing an electroplating electrode roll excellent in conductivity and corrosion resistance according to the present invention.

강재로 제작되는 전극롤본체(1)에 저렴한 가격이면서 전도성이 우수한 일반강재 또는 스테인레스강 등으로 제작된 내측밴드(5)가 결합되어 있고, 이 내측밴드(5)에 내식성이 우수한 Ni기 합금 또는 Co기 합금 그리고 스테인레스강 등으로 제작된 외측밴드(6)가 결합되어 있다.An inner band 5 made of general steel or stainless steel having low conductivity and excellent conductivity is bonded to the electrode roll body 1 made of steel, and the Ni-based alloy having excellent corrosion resistance to the inner band 5 or The outer band 6 made of Co-based alloy and stainless steel is combined.

그리고 내측밴드(5)는 본체(1)와 외측밴드(6) 사이에서 전류가 흐를 수 있는 통로 역할을 수행하게 되고, 외측밴드(6)는 연마작업에 의한 마모로 수명이 다해 교체될 경우 내측밴드(5)로부터 용이하게 분리될 수 있도록 내측밴드보다 열팽창계수가 큰 재질로 제작하여야 한다.The inner band 5 serves as a passage through which current can flow between the main body 1 and the outer band 6, and the outer band 6 has an inner life when the outer band 6 is replaced due to wear caused by polishing. It should be made of a material with a larger coefficient of thermal expansion than the inner band so that it can be easily separated from the band (5).

한편 본 발명에 따른 전극롤은 먼저 본체(1)에 열박음을 이용하여 내측밴드(5)가 끼워지고, 다시 내측밴드에 외측밴드(6)가 열박음에 의해 조립되어지게 된다.Meanwhile, in the electrode roll according to the present invention, the inner band 5 is fitted to the main body 1 by using the shrinkage, and the outer band 6 is assembled to the inner band by the shrinkage.

이때 본체(1)에 결합되는 내외측밴드(5,6)는 상기 열박음방법외에 상기 본체(1)에 결합된 밴드의 양단을 그 원주방향으로 용접하여 조립하는 방법도 있으며, 내외측밴드(5,6)의 두께는 탄성중합체(3)와의 밀착성을 고려하여 종래 밴드(2,2-1)의 두께에 상당하게 제작되어야 하고, 연마작업에 의한 손상으로 교체되는 외측밴드는 탄성중합체와의 밀착성과 제조비용을 고려하여 최소한의 두께로 제작되도록 한다.In this case, the inner and outer bands 5 and 6 coupled to the main body 1 may be assembled by welding both ends of the band coupled to the main body 1 in the circumferential direction in addition to the shrinkage method. The thickness of 5 and 6 should be made to correspond to the thickness of the conventional bands 2 and 2-1 in consideration of the adhesiveness with the elastomer 3, and the outer band to be replaced by the damage caused by polishing is It should be made to the minimum thickness considering adhesiveness and manufacturing cost.

여기서 본체(1)에 내외측밴드(5,6)가 열박음 또는 용접방법으로 결합되며 본체의 양측에 탄성중합체(3)가 각각 코팅되어 본 발명의 전극롤을 완성하게 된다.Here, the inner and outer bands 5 and 6 are coupled to the main body 1 by shrinking or welding, and the elastomer 3 is coated on both sides of the main body to complete the electrode roll of the present invention.

그리고 외측밴드(6)의 수명이 다하게 되면 그 분리를 용이하게 하기 위하여 탄성중합체(3)의 외경을 내측밴드(5)의 두께로 절삭한 후, 수명이 다한 외측밴드를 내측밴드로부터 제거한 다음, 다시 새로운 외측밴드를 내측밴드에 결합하고, 외측밴드의 교환을 위해 절삭된 탄성중합체의 외경을 교환된 외측밴드의 두께이상으로 덧붙이기 코팅을 함으로써 내측밴드(5)와 탄성중합체(3)를 반복 사용할 수 있게 된다.When the life of the outer band 6 is reached, the outer diameter of the elastomer 3 is cut to the thickness of the inner band 5 to facilitate separation, and then the outer band at the end of its life is removed from the inner band. The inner band (5) and the elastomer (3) are again bonded by joining a new outer band to the inner band, and coating the outer diameter of the cut elastomer for replacement of the outer band over the thickness of the replaced outer band. Can be used repeatedly.

본 발명은 본체에 제조비가 싼 내측밴드와 제조비가 비싼 외측밴드를 차례로 결합한 후, 내외측밴드 양측의 본체에 탄성중합체를 코팅함으로써 교환되는 외측밴드의 소요비용을 최소화하고, 내측밴드와 탄성중합체를 반영구적으로 사용함으로써 보수비 및 보수시간을 절약할 수 있는 효과를 제공한다.According to the present invention, after combining the inner band with a low manufacturing cost and the outer band with a high manufacturing cost to the main body, the cost of the outer band to be exchanged is minimized by coating an elastomer on both sides of the inner and outer band, and the inner band and the elastomer are It can be used semi-permanently to reduce the cost of maintenance and repair time.

Claims (2)

본체(1)의 중앙부에 가격이 저렴하면서 전도성이 우수한 일반강재 또는 스테인레스강으로 된 내측밴드(5) 및 내식성이 우수한 Ni기합금, Co기합금, 스테인레스강중에서 선택된 어느 하나로 된 외측밴드(6)가 차례로 결합되고,An inner band 5 made of general steel or stainless steel having low conductivity and excellent conductivity at the center of the body 1, and an outer band 6 made of any one selected from Ni base alloy, Co base alloy and stainless steel having excellent corrosion resistance. Are combined in turn, 상기 내외측밴드(5,6)의 양측면에 밀착되도록 탄성중합체(3)가 상기 본체(1)의 양단부에 고정된 것을 특징으로 하는 전도성과 내부식성이 우수한 전기도금용 전극롤.Electroplating electrode roll having excellent conductivity and corrosion resistance, characterized in that the elastomer (3) is fixed to both ends of the body (1) so as to be in close contact with both sides of the inner and outer bands (5,6). 본체(1)의 중앙부에 내측밴드(5)를 열박음시켜 고정하는 과정과;Fixing the inner band 5 by shrinking the central portion of the main body 1; 상기 내측밴드(5)의 외주에 그보다 더 큰 열팽창계수를 갖는 외측밴드(6)를 재차 열박음시켜 고정하는 과정과;Fixing the outer band 6 to the outer periphery of the inner band 5 by shrinking the outer band 6 again; 상기 내외측밴드(5,6)의 양측면에 밀착되도록 탄성중합체(3)를 상기 본체(1)의 양단부에 코팅하는 과정을 포함하여 제조되는 것을 특징으로 하는 전도성과 내부식성이 우수한 전기도금용 전극롤의 제조방법.Electroplating electrode having excellent conductivity and corrosion resistance, characterized in that the manufacturing process comprising the step of coating the elastomer 3 to both ends of the main body 1 to be in close contact with both sides of the inner and outer bands (5,6) Method of manufacturing rolls.
KR1019970071574A 1997-12-20 1997-12-20 Conductor roll for electro galvanizing line having superior conductivity and corrosion resistance and manufacturing method thereof KR100350068B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5052216U (en) * 1973-09-14 1975-05-20
JPH01147090A (en) * 1987-12-01 1989-06-08 Kubota Ltd Conductor roll for electroplating
KR920000738U (en) * 1990-06-01 1992-01-27 광성고무롤 주식회사 Transfer and electrode roll for steel plate electroplating at steel mill
KR19980066985A (en) * 1997-01-30 1998-10-15 김원중 Doctor roll and its molding method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5052216U (en) * 1973-09-14 1975-05-20
JPH01147090A (en) * 1987-12-01 1989-06-08 Kubota Ltd Conductor roll for electroplating
KR920000738U (en) * 1990-06-01 1992-01-27 광성고무롤 주식회사 Transfer and electrode roll for steel plate electroplating at steel mill
KR19980066985A (en) * 1997-01-30 1998-10-15 김원중 Doctor roll and its molding method

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