KR830002668Y1 - Surface-treated steel sheet for painting - Google Patents
Surface-treated steel sheet for painting Download PDFInfo
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- KR830002668Y1 KR830002668Y1 KR2019810008664U KR810008664U KR830002668Y1 KR 830002668 Y1 KR830002668 Y1 KR 830002668Y1 KR 2019810008664 U KR2019810008664 U KR 2019810008664U KR 810008664 U KR810008664 U KR 810008664U KR 830002668 Y1 KR830002668 Y1 KR 830002668Y1
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- steel sheet
- nickel
- tin
- treated steel
- painting
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- 229910000831 Steel Inorganic materials 0.000 title claims description 20
- 239000010959 steel Substances 0.000 title claims description 20
- 238000010422 painting Methods 0.000 title description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 21
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 238000007747 plating Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- CLDVQCMGOSGNIW-UHFFFAOYSA-N nickel tin Chemical compound [Ni].[Sn] CLDVQCMGOSGNIW-UHFFFAOYSA-N 0.000 claims description 7
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 6
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 229910000159 nickel phosphate Inorganic materials 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 3
- 239000010960 cold rolled steel Substances 0.000 claims description 3
- JOCJYBPHESYFOK-UHFFFAOYSA-K nickel(3+);phosphate Chemical compound [Ni+3].[O-]P([O-])([O-])=O JOCJYBPHESYFOK-UHFFFAOYSA-K 0.000 claims description 3
- VQWFNAGFNGABOH-UHFFFAOYSA-N O.[Cr+3].O.O Chemical compound O.[Cr+3].O.O VQWFNAGFNGABOH-UHFFFAOYSA-N 0.000 claims 1
- 238000009924 canning Methods 0.000 description 15
- 238000005260 corrosion Methods 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 11
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000003973 paint Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 238000005476 soldering Methods 0.000 description 7
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 6
- XUMBMVFBXHLACL-UHFFFAOYSA-N Melanin Chemical compound O=C1C(=O)C(C2=CNC3=C(C(C(=O)C4=C32)=O)C)=C2C4=CNC2=C1C XUMBMVFBXHLACL-UHFFFAOYSA-N 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- VQWFNAGFNGABOH-UHFFFAOYSA-K chromium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 235000014171 carbonated beverage Nutrition 0.000 description 2
- 239000012611 container material Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000010301 surface-oxidation reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- GSJBKPNSLRKRNR-UHFFFAOYSA-N $l^{2}-stannanylidenetin Chemical compound [Sn].[Sn] GSJBKPNSLRKRNR-UHFFFAOYSA-N 0.000 description 1
- 235000016795 Cola Nutrition 0.000 description 1
- 235000011824 Cola pachycarpa Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- QFSKIUZTIHBWFR-UHFFFAOYSA-N chromium;hydrate Chemical compound O.[Cr] QFSKIUZTIHBWFR-UHFFFAOYSA-N 0.000 description 1
- 235000019987 cider Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 239000002385 cottonseed oil Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000005029 tin-free steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Electroplating Methods And Accessories (AREA)
Abstract
내용 없음.No content.
Description
도장용 표면처리강판의 단면도.Cross section of surface treated steel sheet for painting.
본 발명은 극히 얇은 니켈 전기도금 혹은 니켈 주석합금 도금을 통상 공지된 니켈도금액에 포리에틸렌그리골계(Poly ethylene glycol 계) 첨가제를 첨가하여 전착되는 니켈핵을 적게 하므로써 내식성을 보다 우수하게 하고 도료 밀착성을 보다 향상시키기 위하여 니켈 인산염 처리로써 인산염 피막을 형성시킨 후 마지막으로 크로메이트 처리를 하여 보다 표면 특성을 우수하게 한 표면처리강판 제조에 관한 것이다.In the present invention, the ultra-thin nickel electroplating or nickel tin alloy plating is added to a known nickel plating solution by adding a polyethylene glycol-based additive to reduce nickel cores to be electrodeposited, thereby improving corrosion resistance and coating adhesion. In order to further improve the phosphate coating by nickel phosphate treatment and finally chromate treatment relates to the production of surface-treated steel sheet with more excellent surface properties.
종래로부터 통조림 용기 재료로서 주석도금강판이 널리 사용되고 현재까지 주석도금강판을 많이 사용하고 있으나 근년에는 주석도금강판에 사용되는 주석(Tin)이 전세계적으로 고갈이 되어가고 있고 또한 고가의 금속이므로 자연히 주석 도금 강판 대용으로 T.F.S--C.T(Tin Free Steel Chromium Treated 이하 약하여 T.F.S-C.T라 함) 즉 전해 크롬산 처리강판이 출현하게 되었으며 외국에서는 탄산음료관(맥주, 사이다, 콜라등) 및 각종 통조림 용기로써 널리 사용되고 있다.Conventionally, tin-coated steel sheet is widely used as a canning container material, and tin plated steel sheet has been widely used until now, but in recent years, tin (tin) used in tin-coated steel sheet has been depleted all over the world, and it is naturally expensive. As a substitute for plated steel, TFS-CT (Tin-Free Steel Chromium Treated) is called TFS-CT, or electrolytic chromic acid-treated steel sheet, and is widely used in carbonated beverage tubes (beer, cider, cola, etc.) and various canning containers in foreign countries. It is used.
통상 통조림 깡통은 3피스(Piece)관 즉 위뚜껑 부분과 몸통부분 또 밑짝부분으로 나누어져 몸통부분의 접합시 재료가 주서거도금강판의 경우는 제관시 납땜을 하여 접합시킨다.Canning cans are generally divided into three-piece pipes, namely, upper lids, body parts, and bottom parts. When the body parts are joined together, the material can be soldered together when soldering.
이때 표면 주석의 용융점인 232℃ 이상으로 열을 가해 납땜을 하기 때문에 납땜 주위에 땜납이 융착되어 미관을 손상시키고 납땜 후락스(Flux)를 사용하기 때문에 후락스의 일부가 깡통용기에 잔류하여 표면변색과 납땜시 높은 온도로 내면에 납땜침투 및 주석이 재용융 결정되여 표면산화로 내용물이 강부식성 통조림의 경우 그 부분의 부식이 빨라 중금속(식품규정) 공해의 문제가 야기될 가능성이 많았다.At this time, the solder is applied by applying heat above 232 ℃, the melting point of surface tin, so that the solder is fused around the solder, damaging the aesthetics and using soldering flux, so some of the flux remains in the can container and the surface discoloration. When over soldering, solder penetration and tin were remelted on the inner surface due to high temperature, and if the contents were strongly corroded due to surface oxidation, corrosion of the parts was likely to occur quickly, causing problems of heavy metal (food regulations) pollution.
그리고 주석 자체가 매우 고가이고 한정된 주석자원이 고갈된 경향이므로 보다 저렴한 통조림 용기 개발로써 T.F.S-C.T이 개발되어 외국에서는 각종 통조림 용기로써 대부분 사용되여지고 있으나 T.F.S-C.T 강판은 크롬산전해처리한 강판이므로 강판 표면에 형성된 크롬의 용융점(1900℃)이 매우 높고 또한 크롬수화 산화물 피막이 있어 납땜이 전혀 불가능하고 최근 개발된 깡통 제관시 몸통부분 전기용접방법도 크롬의 용융점이 높고 크롬수산화물 피막 때문에 불가능하다.And since tin itself is very expensive and limited tin resources are depleted, TFS-CT has been developed as a cheaper canning container, and it is mostly used as various canning containers in foreign countries, but TFS-CT steel plate is a chromic acid-treated steel plate. Since the melting point of chromium formed on the surface is very high (1900 ℃) and the chromium hydroxide oxide film, soldering is not possible at all, and the recent electric welding method of the body part can be impossible due to the high melting point of chromium and the chromium hydroxide film.
그러므로 외국에서는 깡통 문체의 접합부분을 특수 강력 나이롱 접착을 시켜 통조림 용기로써 사용하여오고 있으나 국내에서는 아직 특수강력 접착제의 개발이 되지 않아 T.F.S-C.T의 통조림 용기로써는 거의 사용불가능한 실정이고 단지 T.F.S-C.T 국내 사용은 통조림 용기가 아닌 접착이 필요없는 용도 즉, 각종 병뚜껑(王缶)에만 사용하고 있는 실정이다.Therefore, in foreign countries, the joints of the can style have been used as canned containers with special strong nylon adhesion, but in Korea, the development of special strong adhesive has not been developed yet, so it is almost impossible to use as a canning container of TFS-CT. The use is not a canning container, but a use that does not require adhesion, that is, the situation is used only for various bottle caps (王 缶).
또한 T.F.S-C.T 제조시 크롬산을 재료로 사요하기 때문에 크롬산처리 공해설비 및 처리비용 등 공해에 큰 문제가 야기되는 실정이다. 그리하여 통조림 용기로써 주석도금판은 물론 T.F.S-C.T 보다 월등히 저렴하고 통조림 용기로써 사용이 가능한 표면처리강판 즉 니켈 또는 니켈주석 합금 도금후 내식성 및 도료밀착성 등을 우수하게 하기 위하여 인산염 피막처리후 크로메이트 처리한 강판이 개발되었다.In addition, since T.F.S-C.T uses chromic acid as a material, it causes a big problem in pollution such as chromic acid treatment pollution facilities and treatment costs. Thus, the tinned plate as a canning container, as well as a surface-treated steel sheet that is much cheaper than TFS-CT and can be used as a canning container, that is, after phosphate coating and chromate treatment for excellent corrosion resistance and paint adhesion after plating nickel or nickel tin alloy Steel plate was developed.
통상 니켈 및 니켈주석합금 도금은 색상이 미려하고 원래 내식성이 우수한 것이 특징으로서 옛부터 방식을 목적으로 하는 분야에 많이 사용되어 왔다. 예를 들어 보면 자동차부품, 기계부품, 가구류, 완구류 또는 장식품 도금 등에 폭넓게 사용되어 왔다. 그러나 통조림 용기로써는 이제까지 실용화되지는 않았다.In general, nickel and nickel tin alloy plating has been widely used in the field for the purpose of anticorrosion since it is characterized by beautiful color and excellent corrosion resistance. For example, it has been widely used in plating of automobile parts, machinery parts, furniture, toys or ornaments. However, it has not been practically used as a canning container.
특히 통조림 용기로써 갖추어야 할 특성은 내식성과 도료밀착성이 우수해야 하며 또한 접착이 가능해야 하고 접착강도가 높아야 된다는 조건이 필수적이다. 이러한 문제점들을 해결하기 위하여 니켈 및 니켈주석합금 도금강판을 개발하였는데 이는 통조림 용기 재료로써 특성을 다 갖춘 것으로써 내식성 및 도료 밀착성이 우수하고 근년에 개발된 통상의 납땜방법과 나이롱 접착방법이 아닌 접합비용이 어느 방법보다 저렴한 동선을 촉매로 하는 고성능 전기용접제관 방법으로 양호하게 통조림관 제작을 종전 방법보다 저렴하게 대량 생산 제작을 할 수 있다.In particular, the characteristics that can be provided as a canning container must be excellent in corrosion resistance and paint adhesion, and must be capable of adhesion and high adhesive strength. In order to solve these problems, nickel and nickel tin alloy plated steel sheets were developed, which have all the characteristics as canning container materials. They are excellent in corrosion resistance and paint adhesion, and are not related to the conventional soldering method and nylon bonding method developed in recent years. The high-performance electric welding tube method using a copper wire which is cheaper than any of these methods, can produce a canned tube can be mass-produced at a lower cost than the conventional method.
이 전기용접 방법을 접착강도는 물론 용접된 표면외관이 미려함은 물론 통상 납땜방법보다 월등히 저렴하고 납땜시 야기되는 모든 문제점이 해결되고 내식성 도장성이 우수하기 때문에 탄산음료관 및 기타 농수산물 통조림용 깡통에 사용 가능한 것이 본 발명의 특징이다.This welding method is not only beautiful in adhesive strength, but also in appearance of welded surface, which is much cheaper than the usual soldering method, solves all the problems caused by soldering, and has excellent corrosion resistance paintability. It is a feature of the present invention that can be used.
그리고 본 발명의 표면처리 방법은 대단히 용이하고 종래의 주석도금강판 및 T.F.S-C.T의 제조설비를 큰 개조 없이 그대로 도금액만 교체하여 생산이 가능하고 또한 고속 연속 가능하며 고가인 주석을 사용하지 않고 통상의 통조림 용기로 사용하는 주석량의 20분의 1정도의 얇은 니켈 혹은 니켈주석의 합금 도금이므로 통조림 용기의 비용으로서는 최저의 가격으로도 공급이 가능하므로 더더욱 염가의 통조림 용기가 가능한 것이 또한 특징이다. 더우기 특성으로서는 우수한 도료밀착성과 가공내식성을 구비하고 있기 때문에 종래 대량으로 사용되여 온 각종 농수산물 쥬스관은 물론 탄산음료관에도 적용이 가능하다.And the surface treatment method of the present invention is very easy and can be produced by replacing the plating solution as it is without significant modifications of the conventional tin-plated steel sheet and TFS-CT manufacturing facilities, and can also be used in high speed continuous and expensive tin without the usual It is also characterized by the fact that it can be supplied at the lowest price as the cost of the canning container, because the alloy plating of the thin nickel or nickel tin of about 20% of the tin used in the canning container is also possible. In addition, since it has excellent paint adhesion and processing corrosion resistance, it can be applied to various agricultural and marine product juice tubes, which are used in large quantities in the past, as well as carbonated beverage tubes.
이하 본 발명의 내용을 예를 들어 더욱 상세히 설명하면 본 발명의 도장용 표면처리강판의 상세한 설명을 위하여 도금피막층의 구성과 그 상태를 단면 확대도로 도시(圖示)하여 설명하면 제1도에서는 통상의 주석도금강판 두께인 0.3m/m 이하의 냉간압연강판소지(1) 위에 니켈 혹은 니켈주석합금(2)으로 하고 그 위에 도장성 및 도료 밀착성을 우수하게 하기 위한 인산니켈층(3)과 그 위에 크로메이트 처리·피막층 즉, 크롬수화산화물층(4)으로 하고 그 위에 표면산화 및 운송시 마찰방지를 위한 엷은 유막층(5)을 가진 상태를 나타내는 것이다.Hereinafter, the content of the present invention will be described in more detail, for example, for the detailed description of the coated surface-treated steel sheet of the present invention, the structure and the state of the plated coating layer will be described in a cross-sectional enlarged view. Nickel or nickel phosphate layer (3) on a cold rolled steel sheet (1) having a tin plated steel sheet thickness of 0.3 m / m or less (1) and having excellent paintability and paint adhesion thereon, and its It shows the state which has the chromate-processed coating layer, ie, the chromium hydroxide oxide layer 4 above, and the thin oil film layer 5 for surface oxidation and the friction prevention at the time of transport on it.
통상 공지의 표면처리 방법인 냉간압연 강판에 1,2차 탈지처리 후 수세산처리하여 아래 실시예의 (가)의 조건으로 니켈 및 니켈주석 합금 도금을 0.01μ-0.11μ의 얇게 도금한 다음 표면특성을 우수하게 하기 위하여 아래 실시예의 (나)(다)의 조건으로 미량의 인산염 및 크롬 수화물 피막을 형성시킨후 수세, 건조후 표면에 면실유 및 D.O.S(디옥틸세바케이트)를 미량 도포한다.Cold rolled steel sheet, which is a commonly known surface treatment method, is subjected to a first and second degreasing treatment and washed with water, followed by plating a thin layer of nickel and nickel tin alloys at 0.01 μ-0.11 μ under the conditions (A) of the following examples. In order to make excellent, a small amount of phosphate and chromium hydrate coating film was formed under the conditions of (b) (c) of the following example, followed by washing with water and drying a small amount of cottonseed oil and DOS (dioctyl sebacate) on the surface.
[실시예 1]Example 1
[실시예 2]Example 2
[실시예 3]Example 3
위의 실험결과를 평가하면 표 1과 같다.Evaluation of the above experimental results are shown in Table 1.
본 발명 강판에 대한 각종 표면 특성 시험을 크롬산전해처리강판 및 석판과 비교한 결과는 다음과 같다.The results of comparing various surface property tests of the steel sheet of the present invention with chromic acid electrolytically treated steel sheets and slabs are as follows.
도료밀착성시험 : 메라닌알카드 도료계수지를 10μ 두께로 도포후 KSD 3520에 의거 Cross Cut Tape 시험후 도막박리 정도를 관찰함.Paint adhesion test: After coating melanin paint card with 10μ thickness, measure the peeling of film after Cross Cut Tape test according to KSD 3520.
염수분무발청시험 : 상온에서 48시간 염수분무후 발청정도를 비교했음.Brine spray test: Compared the degree of staining after 48 hours of salt spraying at room temperature.
도장후가공성시험 : 메라닌알키드 도료계수지를 10μ 두께로 도포후 에릭슨으로 5m/m 민 후 돌기부에 Tape 시험후 도막박리 정도를 관찰함.Post-paintability test: After coating melanin alkyd paint resin with 10μ thickness, push 5m / m with Ericsson, and then check the degree of peeling after tape test on the projection.
구연산침적시험 : 구연산 1% 용액중에서 5분간 끊임.Citric acid deposition test: 5 minutes in 1% solution of citric acid.
[표 1]TABLE 1
표중의 기호 A는 전혀 이상없음 B는 점부식 또는 도막박리Symbol A in the table is not abnormal at all B is corrosion or peeling
C는 일부 부식 또는 도막박리 D는 전면부식 또는 도막박리C is for some corrosion or peeling off. D is for corrosion or peeling off.
다음은 본 발명품과 크롬산 전해처리강판, 석판과의 통조림실관 시험을 실시한 결과임.The following is the result of the canning room test of the present invention, chromic acid electrolytically treated steel sheet, slabs.
(상온에서 24개월 저장시험식품관의 용출금속량)(Eluted metal content of food storage tube for 24 months at room temperature)
상기 결과중 본 발명품의 조건별 표면특성과의 관계를 표기하면 다음과 같다.If the relationship between the surface characteristics of the conditions of the present invention of the above results are described as follows.
(ㄱ) 니켈부착량과 내발청성과의 관계(A) Relationship between nickel deposition and rust resistance
(ㄴ) 인산염 파막량과 밀착강도와의 관계(B) Relationship between phosphate rupture amount and adhesion strength
(ㄷ) 크로메트처리 Coulomb량과 발청과의 관계(C) Relationship between the amount of chromate treated coulomb and rust
(ㄹ) 크로메이트처리 Coulomb량과 밀착강도와의 관계(D) Relationship between chromate treated coulomb content and adhesion strength
Claims (1)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019810008664U KR830002668Y1 (en) | 1981-12-21 | 1981-12-21 | Surface-treated steel sheet for painting |
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| Application Number | Priority Date | Filing Date | Title |
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| KR2019810008664U KR830002668Y1 (en) | 1981-12-21 | 1981-12-21 | Surface-treated steel sheet for painting |
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| KR830002668Y1 true KR830002668Y1 (en) | 1983-12-08 |
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| KR2019810008664U Expired KR830002668Y1 (en) | 1981-12-21 | 1981-12-21 | Surface-treated steel sheet for painting |
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