KR101562127B1 - Lubrication treatment material for electro-galvanized steel sheet and method of forming lubrication coating film for electro-galvanized steel sheet using the same - Google Patents
Lubrication treatment material for electro-galvanized steel sheet and method of forming lubrication coating film for electro-galvanized steel sheet using the same Download PDFInfo
- Publication number
- KR101562127B1 KR101562127B1 KR1020140051855A KR20140051855A KR101562127B1 KR 101562127 B1 KR101562127 B1 KR 101562127B1 KR 1020140051855 A KR1020140051855 A KR 1020140051855A KR 20140051855 A KR20140051855 A KR 20140051855A KR 101562127 B1 KR101562127 B1 KR 101562127B1
- Authority
- KR
- South Korea
- Prior art keywords
- steel sheet
- lubricant
- galvanized steel
- electro
- weight
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
- C23C22/12—Orthophosphates containing zinc cations
- C23C22/13—Orthophosphates containing zinc cations containing also nitrate or nitrite anions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Electroplating Methods And Accessories (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
Description
본 발명은 전기아연도금강판(EG 강판)의 윤활피막 형성 기술에 관한 것으로, 보다 상세하게는 내식성, 윤활성 뿐만 아니라 도장성이 우수한 전기아연도금강판용 윤활처리제 및 이를 이용한 전기아연도금강판의 윤활피막 형성 방법에 관한 것이다.
More particularly, the present invention relates to a lubrication treatment agent for an electrogalvanized steel sheet having excellent corrosion resistance and lubricity as well as excellent paintability, and to provide a lubricating film of an electrogalvanized steel sheet using the same ≪ / RTI >
아연도금강판은 도금 방식에 따라 용융아연도금강판 (GI 강판), 합금화용융아연도금강판(GA 강판) 및 전기아연도금강판(EG 강판)으로 구분된다.Galvanized steel sheets are classified into hot-dip galvanized steel sheets (GI steel sheets), galvanized hot-dip galvanized steel sheets (GA steel sheets), and galvanized steel sheets (EG steel sheets) according to the plating method.
이 중, 전기아연도금강판은 전기 도금을 통하여 아연도금층이 형성된 강판으로, 자동차 외판용으로 주로 사용된다. Of these, the galvanized steel sheet is a steel sheet formed by electroplating through a galvanized layer, and is mainly used for automotive shell plating.
전기아연도금강판의 경우, 일반적으로 강판 표면에 윤활피막이 형성된다. 윤활피막은 강판의 내식성을 향상시키고, 강판 표면에 오염물질이 부착되는 것을 방지하며, 특히 강판 표면에 윤활성을 부여하여 성형성을 향상시키는 역할을 한다. In the case of an electrogalvanized steel sheet, an lubricating film is generally formed on the surface of the steel sheet. The lubricating coating improves the corrosion resistance of the steel sheet, prevents the contaminants from adhering to the surface of the steel sheet, and particularly enhances the formability by imparting lubricity to the surface of the steel sheet.
이러한 윤활피막은 도장성 향상을 위하여, 통상 성형 공정 완료 후에 탈지 공정에서 제거된다. 탈지 공정에서 윤활피막이 완전히 제거되지 않는 경우, 잔존하는 금속염으로 인하여 도장불량이 발생할 수 있다.
This lubricating film is removed in the degreasing step after completion of the molding process, in order to improve the paintability. If the lubricating coating is not completely removed in the degreasing step, coating defects may occur due to the remaining metal salts.
본 발명의 배경기술로는 대한민국 등록특허공보 제10-0785989호(2007.12.14. 공고)에 개시되어 있는 고성형성을 부여한 무기인산염계 윤활처리 합금화용융아연도금강판 및 그 제조방법이 있다.
Background Art [0002] The background art of the present invention is an inorganic phosphate-based lubrication-treated hot-dip galvanized steel sheet which is provided with high-formed formation and which is disclosed in Korean Patent Registration No. 10-0785989 (published on Dec. 14, 2007) and a method for producing the same.
본 발명의 하나의 목적은 전기아연도금강판용 윤활처리제를 제공하는 것이다.One object of the present invention is to provide a lubricant treating agent for an electrogalvanized steel sheet.
본 발명이 다른 목적은 상기의 윤활처리제를 이용하여 전기아연도금강판의 윤활피막을 형성하는 방법을 제공하는 것이다.
Another object of the present invention is to provide a method of forming an lubricating coating of an electrogalvanized steel sheet using the above lubricating agent.
상기 하나의 목적을 달성하기 위한 본 발명의 실시예에 따른 전기아연도금강판용 윤활처리제는 용제와, 인산 및 금속화합물을 포함하는 고형분을 포함하고, 상기 고형분 전체 함량이 3.5~8.0중량%인 것을 특징으로 한다. To achieve the above object, according to an embodiment of the present invention, there is provided a lubricant for electro-galvanized steel sheet, comprising a solvent and a solid content including phosphoric acid and a metal compound, wherein the solid content is 3.5 to 8.0 wt% .
이때, 상기 윤활처리제는 유리산도(FA)가 0.2~0.35인 것이 바람직하다. At this time, the lubrication treating agent preferably has a free acidity (FA) of 0.2 to 0.35.
또한, 상기 고형분은 인산 100중량부에 대하여, 산화아연 20~40중량부, 질산니켈 15~25중량부를 포함할 수 있다.
The solid content may include 20 to 40 parts by weight of zinc oxide and 15 to 25 parts by weight of nickel nitrate, based on 100 parts by weight of phosphoric acid.
상기 다른 목적을 달성하기 위한 본 발명의 실시예에 따른 전기아연도금강판의 윤활피막 형성 방법은 (a) 전기아연도금강판 상에 용제와, 인산 및 금속화합물을 포함하는 고형분을 포함하고, 상기 고형분 전체 함량이 3.5~8.0중량%인 윤활처리제를 도포하는 단계; 및 (b) 상기 윤활처리제를 건조하여 피막을 형성하는 단계;를 포함하는 것을 특징으로 한다. According to another aspect of the present invention, there is provided a method for forming an lubricating film on an electro-galvanized steel sheet, comprising the steps of: (a) providing an electro-galvanized steel sheet with a solvent and a solid content including phosphoric acid and a metal compound, Applying a lubricating agent having a total content of 3.5 to 8.0% by weight; And (b) drying the lubricant to form a coating.
이때, 상기 (a) 단계에서 상기 윤활처리제의 도포량을 2~3 g/m2로 조절하는 것이 바람직하다. At this time, it is preferable to adjust the application amount of the lubricant in the step (a) to 2 to 3 g / m 2 .
또한, 상기 (a) 단계에서 상기 윤활처리제는 롤 코팅 방식으로 도포되고, 상기 윤활처리제의 도포량이 2~3 g/m2가 되도록, 롤과 강판의 접촉 압력 및 롤의 회전속도를 조절할 수 있다.
In the step (a), the lubricant may be applied by a roll coating method, and the contact pressure between the roll and the steel sheet and the rotation speed of the roll may be adjusted so that the amount of the lubricant may be 2 to 3 g / m 2 .
본 발명에 따른 윤활처리제의 경우, 고형분 함량을 낮춤으로써 유리산도 및 금속이온 농도를 낮출 수 있다. 이를 통하여 반응속도를 늦출 수 있어 전기아연도금강판 표면에 균일한 윤활피막 형성이 가능하다. 그 결과 탈지 공정에서 잔류 금속염을 제거할 수 있어, 도장성 저하를 방지할 수 있다. In the case of the lubricant according to the present invention, the free acid content and the metal ion concentration can be lowered by lowering the solid content. As a result, the reaction rate can be slowed, and uniform lubricant film formation can be achieved on the surface of the galvanized steel sheet. As a result, the residual metal salt can be removed in the degreasing step, and the paintability can be prevented from lowering.
아울러, 윤활피막 형성시 윤활처리제의 부착량을 2~3 g/m2가 되도록 조절함으로써, 윤활특성 확보와 더불어 균일한 윤활피막 형성이 가능하다.
In addition, by controlling the amount of lubricant to be deposited to 2 to 3 g / m 2 at the time of lubricating film formation, lubricating property can be ensured and a uniform lubricating film can be formed.
도 1은 본 발명의 실시예에 따른 윤활피막이 형성된 전기아연도금강판을 개략적으로 나타낸 것이다.
도 2는 본 발명의 실시예에 따른 전기아연도금강판의 윤활피막 형성 방법을 개략적으로 나타낸 것이다.
도 3은 본 발명에 따른 전기아연도금강판의 윤활피막 형성 방법에 적용될 수 있는 장치를 개략적으로 나타낸 것이다.
도 4는 실시예 2에 따른 윤활처리제를 이용하여 형성된 윤활피막의 사진을 나타낸 것이다.
도 5는 실시예 2에 따른 윤활처리제를 이용하여 형성된 윤활피막을 제거한 후, 전착도장을 수행한 결과를 나타낸 것이다.
1 is a schematic view of an electro-galvanized steel sheet on which an lubricant coating is formed according to an embodiment of the present invention.
2 schematically shows a method of forming an lubricating film of an electrogalvanized steel sheet according to an embodiment of the present invention.
3 schematically shows an apparatus that can be applied to a method of forming an lubricating film of an electrogalvanized steel sheet according to the present invention.
4 is a photograph of a lubricating coating formed using the lubricant according to the second embodiment.
Fig. 5 shows the result of performing electrodeposition coating after removing the lubricating coating formed using the lubricant according to Example 2. Fig.
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나, 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성요소를 지칭한다.BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
이하 첨부된 도면을 참조하여 본 발명에 따른 전기아연도금강판용 윤활처리제 및 이를 이용한 전기아연도금강판의 윤활피막 형성 방법에 관하여 상세히 설명하기로 한다.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a lubricating agent for an electro-galvanized steel sheet according to the present invention and a method for forming an lubricating film of an electro-galvanized steel sheet using the same will be described in detail with reference to the accompanying drawings.
도 1은 본 발명의 실시예에 따른 윤활피막이 형성된 전기아연도금강판을 개략적으로 나타낸 것이다. 1 is a schematic view of an electro-galvanized steel sheet on which an lubricant coating is formed according to an embodiment of the present invention.
본 발명에서, 윤활피막(120)이 형성되는 모재는 강판(열연강판 혹은 냉연강판)(111) 표면에 전기아연도금층(EG층)(112)이 형성된 전기아연도금강판이다. 전기아연도금강판의 경우, 아연도금층의 균일도 및 평활도가 높아 성형후 도장성 및 내식성이 우수한 장점이 있다. In the present invention, the base material on which the
한편, 핫 프레싱 등 가공 공정에서 금형과의 마찰력을 줄이고, 또한 표면 흑화 현상을 방지하기 위해, 전기아연도금강판 표면에 윤활피막이 형성되어 있다. 윤활피막은 윤활처리제의 도포 및 건조를 통하여 형성된다. On the other hand, an lubricating film is formed on the surface of an electrogalvanized steel sheet in order to reduce the frictional force with the mold in the processing step such as hot pressing and also to prevent surface blackening phenomenon. The lubricating coating is formed through application and drying of the lubricating agent.
그런데, 전기아연도금강판의 경우, 전술한 바와 같이 아연도금층의 균일도 및 평활도가 높아, 지나치게 많은 양의 윤활처리제가 부착될 수 있다. 이로 인해 윤활피막에 불균일한 다량의 금속염이 포함되며, 탈지 공정에서 다량의 금속염 중 일부가 잔류하여, 도장성을 저해될 수 있다. 그렇다고 부착량을 지나치게 낮출 경우, 윤활 특성이 저하될 수 있다.
However, in the case of the electro-galvanized steel sheet, as described above, the uniformity and smoothness of the zinc plated layer are high, and an excessive amount of the lubricant can be attached. As a result, a large amount of uneven metal salt is contained in the lubricant coating, and a large amount of metal salt remains in the degreasing step, which may hinder the paintability. However, if the adhesion amount is excessively lowered, the lubricating property may be deteriorated.
본 발명에서는 이러한 윤활피막의 균일도 및 부착량을 낮출 수 있는 전기아연도금강판용 윤활처리제를 제공한다.The present invention provides a lubrication treating agent for an electrogalvanized steel sheet which can lower the uniformity and adhesion amount of the lubricating coating.
본 발명에 따른 전기아연도금강판용 윤활처리제는 용제와 고형분을 포함한다. 용제는 물, 알코올, 아세톤 등 공지된 용제를 1종 이상 이용할 수 있다. 고형분은 인산 및 금속화합물을 포함한다. 이때, 본 발명에서는 고형분 전체 함량이 3.5~8.0중량%이다. 나머지는 용제가 될 수 있고, 필요에 따라서는 소포제, 평활제 등 첨가제가 대략 1중량% 이하의 소량으로 포함될 수 있다. The lubricating agent for an electro-galvanized steel sheet according to the present invention includes a solvent and a solid content. As the solvent, one or more known solvents such as water, alcohol, and acetone may be used. Solids include phosphoric and metal compounds. At this time, in the present invention, the solid content is 3.5 to 8.0 wt%. The remainder may be a solvent, and if necessary, additives such as antifoaming agents and smoothing agents may be contained in a small amount of about 1% by weight or less.
피막처리제에서, 고형분의 함량이 3.5중량% 미만일 경우, 윤활피막의 밀도가 너무 낮은 관계로 윤활성을 충분히 발휘하기 어렵다. 반대로, 고형분의 함량이 8.0중량%를 초과하는 경우, 유리산도가 높아지고 금속 이온의 농도가 높아져 부착량이 높아지고, 피막 균일성이 저하될 수 있다. When the content of the solid content in the coating agent is less than 3.5% by weight, it is difficult to sufficiently exhibit lubricity because the density of the lubricating coating is too low. On the other hand, when the content of the solid content exceeds 8.0% by weight, the free acidity increases and the concentration of metal ions increases, resulting in an increase in the amount of deposited film and a decrease in film uniformity.
또한, 본 발명에 따른 윤활처리제는 유리산도(Free Acidity; FA)가 0.2~0.35인 것이 보다 바람직하다. 유리산도는 피막처리제에서 고형분 함량 조절, 고형분을 구성하는 성분들의 함량 조절을 통하여 조절될 수 있다. 유리산도가 0.35를 초과하는 경우, 반응속도가 높아지고 이로 인해 윤활피막의 균일성이 저하될 수 있다. 반대로, 유리산도가 0.2미만일 경우, 윤활피막의 내식성 및 윤활성 확보가 어려운 문제점이 있다. In addition, the lubricant according to the present invention preferably has a free acidity (FA) of 0.2 to 0.35. The free acidity can be controlled by controlling the content of solids in the coating agent and controlling the content of the constituents of the solid. When the free acidity is more than 0.35, the reaction rate is increased and the uniformity of the lubricating film may be lowered. On the other hand, when the free acidity is less than 0.2, there is a problem that it is difficult to secure the corrosion resistance and lubricity of the lubricating coating.
본 발명에서, 고형분은 인산 100중량부에 대하여, 산화아연 20~40중량부, 질산니켈 15~25중량부를 포함하는 것을 이용할 수 있다. 인산이 윤활성을 향상시키는 주요 인자라고 하면, 산화아연 및 질산니켈은 내식성, 피막 경도 등을 향상시키는 주요 인자라 할 수 있다. 인산 100 중량부 대비 산화아연 20중량부 미만 또는 질산니켈 15중량부 미만일 경우, 충분한 내식성 확보가 어려운 문제점이 있다. 반대로, 인산 100 중량부 대비 산화아연 40중량부 초과 또는 질산니켈 25중량부 초과일 경우, 불균일한 사이즈의 금속염을 형성함으로써 피막 균일성이 저하되는 문제점이 있다.
In the present invention, the solid content may be 20 to 40 parts by weight of zinc oxide and 15 to 25 parts by weight of nickel nitrate, based on 100 parts by weight of phosphoric acid. When phosphoric acid is a main factor for improving lubricity, zinc oxide and nickel nitrate are major factors for improving corrosion resistance, film hardness and the like. When zinc oxide is less than 20 parts by weight or nickel nitrate is less than 15 parts by weight based on 100 parts by weight of phosphoric acid, it is difficult to ensure sufficient corrosion resistance. On the other hand, when zinc oxide is more than 40 parts by weight or nickel nitrate is more than 25 parts by weight based on 100 parts by weight of phosphoric acid, there is a problem that uniformity of film is lowered by forming a metal salt of uneven size.
도 2는 본 발명의 실시예에 따른 전기아연도금강판의 윤활피막 형성 방법을 개략적으로 나타낸 것이다. 2 schematically shows a method of forming an lubricating film of an electrogalvanized steel sheet according to an embodiment of the present invention.
도 2를 참조하면, 본 발명에 따른 전기아연도금강판의 윤활피막 형성 방법은 윤활처리제 도포 단계(S210) 및 건조 단계(S220)를 포함한다.Referring to FIG. 2, a method of forming an lubricating film of an electrodynamic galvanized steel sheet according to the present invention includes a lubricating agent applying step (S210) and a drying step (S220).
윤활처리제 도포 단계(S210)에서는 전기아연도금강판 상에 전술한 윤활처리제를 도포한다. In the lubrication treatment agent application step (S210), the aforementioned lubricant is applied onto the galvanized steel sheet.
이때, 상기 윤활처리제의 도포량을 2~3 g/m2로 조절하는 것이 바람직하다. 윤활처리제의 도포량이 2 g/m2 미만일 경우, 윤활 특성 발휘가 어려워질 수 있다. 반대로 윤활처리제의 도포량이 3 g/m2를 초과하는 경우, 탈지 공정 후에 금속염이 잔류하여 불균일한 피막을 형성하여 도장성을 저하시킬 수 있다. At this time, it is preferable to adjust the amount of the lubricant to be applied to 2 to 3 g / m 2 . When the amount of the lubricant is less than 2 g / m 2 , it may become difficult to exhibit the lubrication characteristics. On the other hand, when the amount of the lubricant is more than 3 g / m 2 , the metal salt may remain after the degreasing process to form a non-uniform coating film, which may reduce the paintability.
그리고, 건조 단계(S220)에서는 열풍 건조, 오븐 건조 등의 방식으로 윤활처리제를 대략 70~200℃ 정도에서 건조하여 피막을 형성한다.
In the drying step (S220), the lubricant is dried at about 70 to 200 DEG C by a method such as hot air drying or oven drying to form a film.
도 3은 본 발명에 따른 전기아연도금강판의 윤활피막 형성 방법에 적용될 수 있는 장치를 개략적으로 나타낸 것이다.3 schematically shows an apparatus that can be applied to a method of forming an lubricating film of an electrogalvanized steel sheet according to the present invention.
도 3에 도시된 장치를 이용하면, 롤 코팅에 의한 윤활처리제의 부착 및 건조가 순차적으로 수행될 수 있다. Using the apparatus shown in Fig. 3, attachment and drying of the lubricant by roll coating can be performed sequentially.
도 3을 참조하면, 윤활피막 형성 장치는 윤활처리제(315)를 저장하는 용기(310), 2 이상의 롤(320, 330, 340) 및 건조 수단(350)을 포함한다. 3, the lubricant film forming apparatus includes a
이때, 윤활처리제의 도포량이 2~3 g/m2가 되도록, 롤과 강판의 접촉 압력 및 롤의 회전속도를 조절하는 것이 바람직하다. 롤과 강판의 접촉 압력이 낮거나 롤의 회전속도가 빠르면 윤활처리제의 부착량이 증가하고, 롤과 강판의 접촉 압력이 높거나 롤의 회전속도가 느리면 윤활처리제의 부착량이 감소하는 바, 이를 조절하여 윤활처리제의 도포량이 2~3 g/m2가 되도록 하는 것이 가능하다.
At this time, it is preferable to adjust the contact pressure between the roll and the steel plate and the rotation speed of the roll so that the application amount of the lubricant becomes 2 to 3 g / m 2 . If the contact pressure between the roll and the steel sheet is low or the rotation speed of the roll is fast, the amount of the lubricant applied increases. If the contact pressure between the roll and the steel sheet is high or the rotation speed of the roll is low, It is possible to make the application amount of the lubricant treatment agent 2 to 3 g / m 2 .
실시예Example
이하, 본 발명의 바람직한 실시예를 통해 본 발명의 구성 및 작용을 더욱 상세히 설명하기로 한다. 다만, 이는 본 발명의 바람직한 예시로 제시된 것이며 어떠한 의미로도 이에 의해 본 발명이 제한되는 것으로 해석될 수는 없다. Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.
여기에 기재되지 않은 내용은 이 기술 분야에서 숙련된 자이면 충분히 기술적으로 유추할 수 있는 것이므로 그 설명을 생략하기로 한다.
The contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.
본 발명에서는 고형분에 인산 100중량부 대비 산화아연 33중량부 및 질산니켈 22중량부를 포함하고, 고형분이 각각 7.5중량%(실시예 1), 4.3중량%(실시예 2) 및 3.7중량%(실시예 3) 포함되고 나머지가 물(city water)인 윤활처리제를 이용하였다. In the present invention, 33 parts by weight of zinc oxide and 22 parts by weight of nickel nitrate are contained in a solid content of 100 parts by weight of phosphoric acid and the solids are 7.5% by weight (Example 1), 4.3% by weight (Example 2) and 3.7% Example 3) and the remainder is water (city water).
표 1은 실시예 1~3에 따른 윤활처리제를 도포한 결과를 나타낸 것이다. Table 1 shows the results of applying the lubricant according to Examples 1 to 3.
[표 1][Table 1]
표 1을 참조하면, 실시예 1~3에 따른 윤활처리제를 이용할 경우, 유리산도가 0.20~0.35 정도로 매우 낮아 반응속도를 낮출 수 있으며, 아울러 2~3 g/m2의 종래보다 낮은 부착량을 발휘하는 것을 볼 수 있다. Referring to Table 1, when using a lubricating agent according to Example 1-3, the glass acidity and to lower the very low reaction rate about 0.20 ~ 0.35, and also exhibits a lower coating weight than that of the 2 ~ 3 g / m 2 prior Can be seen.
도 4는 실시예 2에 따른 윤활처리제를 이용하여 형성된 윤활피막의 사진을 나타낸 것이다. 도 4를 참조하면, 실시예 2에 따른 윤활처리제로부터 형성된 윤활피막의 경우, 피막 조직이 매우 균일한 것을 볼 수 있다. 4 is a photograph of a lubricating coating formed using the lubricant according to the second embodiment. Referring to FIG. 4, in the case of the lubricating coating formed from the lubricant according to Example 2, the coating structure is very uniform.
도 5는 실시예 2에 따른 윤활처리제를 이용하여 형성된 윤활피막을 제거한 후, 전착도장을 수행한 결과를 나타낸 것이다. 도 5를 참조하면, 전착도장 후 충격성 테스트 결과 도막박리가 발생하지 않았는 바, 도장성이 우수하다고 볼 수 있다.
Fig. 5 shows the result of performing electrodeposition coating after removing the lubricating coating formed using the lubricant according to Example 2. Fig. Referring to FIG. 5, after the electrodeposition test, the coating film peeling did not occur as a result of the impact test, so that the coating property is excellent.
이상에서는 본 발명의 실시예를 중심으로 설명하였으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 기술자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 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 embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.
Accordingly, the true scope of protection of the present invention should be defined by the following claims.
110 : 전기아연도금강판
111 : 강판
112 : 전기아연도금층
310 : 용기
315 : 윤활처리제
320, 330, 340 : 롤
350 : 건조 수단110: Electric galvanized steel sheet
111: steel plate
112: Electric galvanized layer
310: container
315: lubricating agent
320, 330, 340: Roll
350: drying means
Claims (7)
상기 윤활처리제의 유리산도(FA)가 0.2~0.35인 것을 특징으로 하는 전기아연도금강판용 윤활처리제.
A lubricant containing a solvent and a solid content including phosphoric acid and a metal compound and having a solid content of 3.5 to 8.0 wt%
Wherein the lubricating agent has a free acidity (FA) of 0.2 to 0.35.
상기 고형분은 인산 100중량부에 대하여, 산화아연 20~40중량부, 질산니켈 15~25중량부를 포함하는 것을 특징으로 하는 전기아연도금강판용 윤활처리제.
The method according to claim 1,
Characterized in that the solid content comprises 20 to 40 parts by weight of zinc oxide and 15 to 25 parts by weight of nickel nitrate based on 100 parts by weight of phosphoric acid.
(b) 상기 윤활처리제를 건조하여 피막을 형성하는 단계;를 포함하고,
상기 윤활처리제는 유리산도(FA)가 0.2~0.35인 것을 특징으로 하는 전기아연도금강판의 윤활피막 형성 방법.
(a) applying a lubrication treatment agent containing a solvent, a solid content including phosphoric acid and a metal compound, and an overall solid content of 3.5 to 8.0% by weight on an electrogalvanized steel sheet; And
(b) drying the lubricant to form a coating,
Wherein the lubrication treating agent has a free acidity (FA) of 0.2 to 0.35.
상기 (a) 단계에서 상기 윤활처리제의 도포량을 2~3 g/m2로 조절하는 것을 특징으로 하는 전기아연도금강판의 윤활피막 형성 방법.
5. The method of claim 4,
Wherein the coating amount of the lubricant is adjusted to 2 to 3 g / m 2 in the step (a).
상기 (a) 단계에서 상기 윤활처리제는 롤 코팅 방식으로 도포되고, 상기 윤활처리제의 도포량이 2~3 g/m2가 되도록, 롤과 강판의 접촉 압력 및 롤의 회전속도를 조절하는 것을 특징으로 하는 전기아연도금강판의 윤활피막 형성 방법.
5. The method of claim 4,
In the step (a), the lubricant is applied by a roll coating method, and the contact pressure between the roll and the steel sheet and the rotation speed of the roll are controlled so that the amount of application of the lubricant is 2 to 3 g / m 2 Wherein said method comprises the steps of:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140051855A KR101562127B1 (en) | 2014-04-29 | 2014-04-29 | Lubrication treatment material for electro-galvanized steel sheet and method of forming lubrication coating film for electro-galvanized steel sheet using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140051855A KR101562127B1 (en) | 2014-04-29 | 2014-04-29 | Lubrication treatment material for electro-galvanized steel sheet and method of forming lubrication coating film for electro-galvanized steel sheet using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101562127B1 true KR101562127B1 (en) | 2015-10-20 |
Family
ID=54400048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140051855A KR101562127B1 (en) | 2014-04-29 | 2014-04-29 | Lubrication treatment material for electro-galvanized steel sheet and method of forming lubrication coating film for electro-galvanized steel sheet using the same |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101562127B1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100645180B1 (en) | 2005-01-14 | 2006-11-10 | 현대하이스코 주식회사 | Method for producing lubricated inorganic solution compositions and galvanized steel sheet coated thereof, having a good formability and weldability |
-
2014
- 2014-04-29 KR KR1020140051855A patent/KR101562127B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100645180B1 (en) | 2005-01-14 | 2006-11-10 | 현대하이스코 주식회사 | Method for producing lubricated inorganic solution compositions and galvanized steel sheet coated thereof, having a good formability and weldability |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5044976B2 (en) | Method for producing alloyed hot-dip galvanized steel sheet and alloyed hot-dip galvanized steel sheet | |
| JP6694876B2 (en) | Use of sulphate and method for producing steel parts by molding in a molding machine | |
| JP6487474B2 (en) | Method for producing metal sheet with oiled Zn-Al-Mg coating and corresponding metal sheet | |
| JP5338243B2 (en) | Plated steel sheet for hot press forming and manufacturing method thereof | |
| JP6279723B2 (en) | ZnAlMg-coated metal sheet with improved flexibility and corresponding manufacturing method | |
| JP6581116B2 (en) | Method for manufacturing a steel part formed by hot forming of a steel sheet having a metal coating, such a steel sheet, and a steel part manufactured from the steel sheet using a hot forming process | |
| JP2007517135A (en) | Surface treatment with hydroxysulfate | |
| JP2010090463A (en) | Plated steel sheet to be hot-press-formed, and method for manufacturing the same | |
| JPWO2016017186A1 (en) | Method for producing hot-dip galvanized steel | |
| JP2009203547A (en) | Galvanized steel sheet and manufacturing method therefor | |
| JP2010090462A (en) | Plated steel sheet to be hot-press-formed, and method for manufacturing the same | |
| JP6348107B2 (en) | Method for producing pre-lacquered metal sheet with Zn-Al-Mg coating and corresponding metal sheet | |
| KR101562127B1 (en) | Lubrication treatment material for electro-galvanized steel sheet and method of forming lubrication coating film for electro-galvanized steel sheet using the same | |
| MY161932A (en) | Hot-dip zinc-aluminium alloy coated steel sheet having high corrosion resistance and formability and method for producing the same | |
| KR20160083313A (en) | Coated steel sheet having excellent corrosion resistance at cut end face and method for manufacturing the same | |
| KR101597450B1 (en) | Electro-galvanized steel sheet and method of manufacturing the same | |
| WO2007129393A1 (en) | Anticorrosive metal part and process for producing the same | |
| JP5044924B2 (en) | Method for producing alloyed hot-dip galvanized steel sheet and alloyed hot-dip galvanized steel sheet | |
| KR20190078902A (en) | Hot dip zinc alloy plated steel sheet having high slippage and the method of the same | |
| JP2010090401A (en) | Zn-Al-BASED PLATED STEEL SHEET, AND METHOD FOR MANUFACTURING THE SAME | |
| KR20150120680A (en) | Mechanical Plating Method | |
| JP2019507238A (en) | Zinc-based galvanized steel sheet with post-treatment coating film and post-treatment method | |
| WO2017128846A1 (en) | Wear-resisting processing method for metal product | |
| JP6682260B2 (en) | Manufacturing method of anti-rust steel plate for automobile | |
| JP3903904B2 (en) | Surface-treated steel sheet with excellent paintability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20181002 Year of fee payment: 4 |
|
| FPAY | Annual fee payment |
Payment date: 20190926 Year of fee payment: 5 |