KR20080103717A - Manufacturing method for color stainless steel with high scar resistance - Google Patents
Manufacturing method for color stainless steel with high scar resistance Download PDFInfo
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- KR20080103717A KR20080103717A KR1020070050799A KR20070050799A KR20080103717A KR 20080103717 A KR20080103717 A KR 20080103717A KR 1020070050799 A KR1020070050799 A KR 1020070050799A KR 20070050799 A KR20070050799 A KR 20070050799A KR 20080103717 A KR20080103717 A KR 20080103717A
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 47
- 239000010935 stainless steel Substances 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 231100000241 scar Toxicity 0.000 title abstract 2
- 238000007747 plating Methods 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 35
- 230000003647 oxidation Effects 0.000 claims abstract description 31
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 31
- 238000011282 treatment Methods 0.000 claims abstract description 17
- 230000003746 surface roughness Effects 0.000 claims abstract description 12
- 230000001590 oxidative effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 238000005498 polishing Methods 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 20
- 239000007769 metal material Substances 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 28
- 239000010949 copper Substances 0.000 description 8
- 239000003086 colorant Substances 0.000 description 7
- 239000012153 distilled water Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 5
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 5
- QDWJUBJKEHXSMT-UHFFFAOYSA-N boranylidynenickel Chemical compound [Ni]#B QDWJUBJKEHXSMT-UHFFFAOYSA-N 0.000 description 4
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 3
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000009500 colour coating Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 description 2
- 229910000033 sodium borohydride Inorganic materials 0.000 description 2
- 239000012279 sodium borohydride Substances 0.000 description 2
- 239000013077 target material Substances 0.000 description 2
- 150000003609 titanium compounds Chemical class 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910018054 Ni-Cu Inorganic materials 0.000 description 1
- 229910018481 Ni—Cu Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 235000019646 color tone Nutrition 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- RYZCLUQMCYZBJQ-UHFFFAOYSA-H lead(2+);dicarbonate;dihydroxide Chemical group [OH-].[OH-].[Pb+2].[Pb+2].[Pb+2].[O-]C([O-])=O.[O-]C([O-])=O RYZCLUQMCYZBJQ-UHFFFAOYSA-H 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/026—Rolling
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
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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
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76871—Layers specifically deposited to enhance or enable the nucleation of further layers, i.e. seed layers
- H01L21/76874—Layers specifically deposited to enhance or enable the nucleation of further layers, i.e. seed layers for electroless plating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
- B05D2202/15—Stainless steel
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- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
도 1은 본 발명의 일 실시예에 따른 표면경도가 우수한 컬러 스테인리스강재 의 제조방법을 나타낸 절차도,1 is a procedure showing a method of manufacturing a color stainless steel having excellent surface hardness according to an embodiment of the present invention,
도 2는 본 발명의 다른 실시예에 따른 표면경도가 우수한 컬러 스테인리스강재의 제조방법을 나타낸 절차도이다.Figure 2 is a procedure showing a method of manufacturing a color stainless steel having excellent surface hardness according to another embodiment of the present invention.
본 발명은 표면경도가 우수한 컬러 스테인리스강재의 제조방법에 관한 것으로, 제조비용이 저렴하면서도 표면경도가 우수하고 동시에 다양한 컬러를 갖는 컬러 스테인리스강재의 제조방법에 관한 것이다.The present invention relates to a method of manufacturing colored stainless steel having excellent surface hardness, and to a method of manufacturing colored stainless steel having excellent surface hardness and at the same time having various colors with low manufacturing cost.
일반적으로, 엘리베이터 벽, 지하철 등의 공공시설의 벽, 화장실 벽 등은 다양한 컬러 또는 광택 등을 포함하는 장식성이 요구됨과 동시에 의류의 단추, 가방, 휠체어 등에 의한 흠집의 발생을 방지하기 위한 내흠집성 즉 높은 표면경도가 요구된다.In general, the walls of the public facilities such as elevator walls, subways, bathroom walls, etc. are required to be decorated with a variety of colors or gloss, and at the same time scratch resistance to prevent scratches caused by buttons, bags, wheelchairs, etc. of clothing In other words, high surface hardness is required.
이에, 표면경도를 향상시키기 위해 종래에는 고진공의 용기내에서 실시소재 가 되는 스테인리스 표면에 이온화된 티티늄 입자를 증착시켜 티타늄 화합물의 피막을 얻는 티타늄 컬러 코팅 방법이 이용되었으며, 이때 투입되는 가스종류에 따라 금색, 청색, 흑색 등 다양한 색상을 얻을 수 있다.Thus, in order to improve the surface hardness, conventionally, a titanium color coating method of depositing ionized titanium particles on a stainless steel surface, which is an embodiment material in a high vacuum vessel, to obtain a titanium compound film was used. Therefore, various colors such as gold, blue, and black can be obtained.
상기한 티타늄 컬러 코팅방법은 티타늄 화합물층의 경도가 높아 표면경도가 우수하지만 제조하기 위한 진공장비가 고가이고 생산성이 높지 못한 단점이 있다.The titanium color coating method has a high hardness of the titanium compound layer, but the surface hardness is excellent, but there is a disadvantage that the vacuum equipment for manufacturing is expensive and the productivity is not high.
또 다른 방법으로서 일본특허공개(특개평 11-152550)에서 스테인리스강의 표면경도를 높이기 위해 고경도 스테인리스강을 사용하는 방법이 개시된 바 있지만, 이러한 방법은 모재 경도가 높아지면 이에 따라 경면연마하는데 어려움이 있으며, 더구나 그 경도는 300Hv ∼ 500Hv 정도이어서 내흠집성이 우수하지 못하고, 제조가능한 색상이 스테인리스강의 은백색인 단색으로, 다양한 컬러를 얻을 수없는 단점이 있다.As another method, Japanese Patent Laid-Open Publication No. 11-152550 discloses a method of using high hardness stainless steel to increase the surface hardness of stainless steel. In addition, since the hardness is about 300Hv to 500Hv, the scratch resistance is not excellent, and the manufacturable color is a silver white of stainless steel, which has a disadvantage in that various colors cannot be obtained.
따라서, 본 발명은 상기한 문제점을 감안하여 안출된 것으로, 제조비용이 저렴하면서도 표면경도가 우수하고 동시에 다양한 컬러를 갖는 컬러 스테인리스강재의 제조방법을 제공하는데 그 목적이 있다.Accordingly, the present invention has been made in view of the above-described problems, and an object thereof is to provide a manufacturing method of color stainless steel having a low manufacturing cost and excellent surface hardness and various colors.
본 발명의 다른 목적 및 장점들은 하기에 설명될 것이며, 본 발명의 실시예에 의해 알게 될 것이다.Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention.
상기한 목적을 달성하기 위하여, 본 발명에 따른 표면경도가 우수한 컬러 스테인리스강재의 제조방법은 (a) 스테인리스강재의 표면조도를 향상시키는 단계; (b) 상기 (a)단계를 거친 스테인리스강재를 Ni도금처리하는 단계; 및 (c) 상기 (b)단계를 거친 스테인리스강재를 180℃~3000℃의 산화성 분위기하에서 0.1초~4시간 동안 산화 열처리하여 상기 스테인리스강재의 표면에 컬러산화피막층을 형성하기 위한 컬러산화공정단계를 포함한다.In order to achieve the above object, the manufacturing method of the color stainless steel having excellent surface hardness according to the present invention comprises the steps of (a) improving the surface roughness of the stainless steel; (b) Ni-plating the stainless steel material passed through step (a); And (c) color oxidation process step of forming a color oxide film layer on the surface of the stainless steel by oxidizing and heat-treating the stainless steel material passed through step (b) for 0.1 seconds to 4 hours in an oxidizing atmosphere of 180 ° C to 3000 ° C. Include.
여기서, 상기 (a)단계는 연마, 폴리싱, 랩핑, 버핑, 전해연마 중에서 선택된 적어도 1종의 방법으로 경면가공할 수 있으며, 이때 상기 경면가공 후 상기 스테인리스강재의 표면조도는 충분한 광택도를 확보하기 위해 Ra는 2.0㎛이하로 하는 것이 바람직하다.Here, the step (a) may be mirrored by at least one method selected from polishing, polishing, lapping, buffing, electrolytic polishing, wherein the surface roughness of the stainless steel after the mirroring process to ensure sufficient glossiness Ra is preferably 2.0 µm or less.
또한, 상기 (a)단계는 Cu 또는 Ni도금처리 후 압연가공할 수 있다.In addition, the step (a) may be rolled after Cu or Ni plating treatment.
그리고, 상기 (b)단계의 Ni 도금처리는 전해 Ni 도금 또는 무전해 Ni 도금 중에서 선택된 1종으로 실시하고, 상기 Ni도금은 Ni에 대하여 P, B, Co, W, Fe, Mn, Zn, Cu, Mo 중 선택된 적어도 1종의 원소와 합금으로 되는 합금도금을 포함한다.In the step (b), the Ni plating process is performed using one selected from electrolytic Ni plating or electroless Ni plating, and the Ni plating is performed on P, B, Co, W, Fe, Mn, Zn, and Cu with respect to Ni. And alloy plating made of an alloy with at least one element selected from Mo.
이하 첨부한 도면을 참조로 하여 본 발명의 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명의 일 실시예에 따른 표면경도가 우수한 컬러 스테인리스강재 의 제조방법을 나타낸 절차도이고, 도 2는 본 발명의 다른 실시예에 따른 표면경도가 우수한 컬러 스테인리스강재의 제조방법을 나타낸 절차도이다.1 is a procedure showing a method of manufacturing a color stainless steel with excellent surface hardness according to an embodiment of the present invention, Figure 2 shows a method of manufacturing a color stainless steel with excellent surface hardness according to another embodiment of the present invention. It is a procedure diagram.
먼저, 본 발명에 따른 컬러 스테인리스강재의 제조방법은 광택도를 향상시키기 위해 실시대상 소재인 스테인리스강재에 표면조도를 향상시키는 단계와, 높은 표면경도를 획득하기 위하여 Ni도금처리하는 단계 및 산화열처리를 통하여 컬러 산화피막층을 형성시키는 컬러 산화공정단계를 포함한다.First, the manufacturing method of the color stainless steel according to the present invention is to improve the surface roughness on the stainless steel material of the target material to improve the glossiness, Ni-plating treatment and oxidation heat treatment to obtain a high surface hardness It comprises a color oxidation process step of forming a color oxide film layer through.
여기서, 상기 표면조도를 향상시키는 것은 이후 공정인 산화열처리 후 광택도를 향상시키기 위한 것으로, 이는 산화열처리후의 표면상태는 Ni 도금처리전 스테인리스강재의 조도에 의해 결정되기 때문이다.Here, the surface roughness is improved to improve glossiness after the oxidation heat treatment, which is a subsequent process, since the surface state after the oxidation heat treatment is determined by the roughness of the stainless steel before Ni plating.
한편, 본 발명은 상기 표면조도를 향상시키는 방법을 각각 달리하여 표면경도가 우수한 컬러 스테인리스강재를 제조할 수 있는 다양한 실시예가 있으며, 이에 먼저 본 발명의 일 실시예에 따른 표면경도가 우수한 컬러 스테인리스강재의 제조방법을 살펴보면 도 1과 같다.On the other hand, the present invention has a variety of embodiments that can produce a color stainless steel with excellent surface hardness by varying the method for improving the surface roughness, respectively, first of all color stainless steel with excellent surface hardness according to an embodiment of the present invention Looking at the manufacturing method of the same as FIG.
도면을 참조하면, 본 발명의 일 실시예에 따른 컬러 스테인리스강재의 제조방법은 표면조도를 향상시키기 위하여 실시대상인 스테인리스강재에 경면가공을 실시한다(S10). Referring to the drawings, the manufacturing method of the color stainless steel according to an embodiment of the present invention is subjected to mirror processing on the stainless steel material to be carried out in order to improve the surface roughness (S10).
상기 경면가공은 연마, 폴리싱, 랩핑, 버핑, 전해연마 중에서 선택된 1종의 방법으로 하는 것이 바람직하지만 그 외 다른 가공방법으로도 가능하다. 그리고, 상기 경면가공 후의 스테인리스강재의 표면조도는 Ra가 2.0㎛ 이하가 바람직하다.The mirror processing is preferably performed by one method selected from polishing, polishing, lapping, buffing, and electropolishing, but other processing methods are also possible. And, as for the surface roughness of the stainless steel material after the said mirror surface processing, Ra is 2.0 micrometers or less.
상기한 방법에 따라 표면조도가 향상된 스테인리스강재는 높은 표면경도를 얻기 위하여 Ni 도금처리한다(S20).According to the above method, the stainless steel material having improved surface roughness is Ni plated to obtain high surface hardness (S20).
여기서, 상기 Ni 도금처리는 전해 니켈도금 또는 무전해 니켈도금으로 실시할 수 있으며, 보다 높은 표면경도를 위하여 순수 니켈도금보다 니켈에 인, 붕소, 코발트, 텅스텐, 철, 망간, 아연, 구리, 몰리브덴 등의 합금을 단독 또는 복합첨가 한 니켈-합금도금이 바람직하다. Here, the Ni plating treatment may be performed by electrolytic nickel plating or electroless nickel plating, and phosphorus, boron, cobalt, tungsten, iron, manganese, zinc, copper, and molybdenum in nickel than pure nickel plating for higher surface hardness. Nickel-alloy plating in which alloys such as these are added alone or in combination is preferred.
상기한 Ni 도금처리에 의하여 니켈-합금도금층의 경도는 800Hv 정도의 높은 표면경도을 가질 수 있으며, 이후 공정인 산화열처리에 따른 가열시 산화열처리 온도에 따라 1200Hv 정도의 표면경도의 확보도 가능하다. By the Ni plating treatment, the hardness of the nickel-alloy plated layer may have a high surface hardness of about 800 Hv, and a surface hardness of about 1200 Hv may also be secured according to the oxidation heat treatment temperature during heating according to the oxidation heat treatment.
상기한 Ni 도금처리에 대한 실시예를 살펴보면 다음과 같다.Looking at the embodiment for the Ni plating treatment as described above are as follows.
(Ni-B 도금처리 실시예1)(Ni-B Plating Example 1)
표준 무전해 니켈-붕소 도금처리를 하였으며, 증류수 1,000cc에 염화니켈 30g, 에틸렌디아민 62g, 티오글리콜산 1g, 염화납 10mg, 수소화 붕소나트륨 0.5g pH 는 12, 온도 50℃로 하였다.Standard electroless nickel-boron plating was performed, and the pH of nickel chloride 30g, ethylenediamine 62g, thioglycolic acid 1g, lead chloride 10mg, sodium borohydride 0.5g in 1,000 cc of distilled water was set to 12 and a temperature of 50 ° C.
(Ni-B 도금처리 실시예2)(Ni-B Plating Example 2)
와트욕을 이용한 전기 니켈-붕소도금처리를 하였으며, 증류수 1,000cc, 황산니켈 240g, 염화니켈 50g, 붕산 40g, 1, 2차 광택제 약간, 전류밀도 5A/dm , pH 4.5, 도금액 온도 45℃로 하였다.Electric nickel-boron plating was performed using a watt bath. Distilled water 1,000cc, nickel sulfate 240g, nickel chloride 50g, boric acid 40g, 1st and 2nd varnishes, a current density of 5A / dm, pH 4.5, and a plating solution temperature of 45 ° C were obtained. .
(Ni-Cu 도금처리)(Ni-Cu Plating)
표준 전기 니켈-구리도금처리를 하였으며, 증류수 1,000cc에 황산동 150g, 황산 50g, 광택제는 적당량, 염소이온 50mg, 전류밀도는 5A/dm, 도금액 온도 40℃로 하였다.Standard electro-nickel-copper plating treatment was performed, and 150 g of copper sulfate, 50 g of sulfuric acid, an appropriate amount of a brightener, 50 mg of chlorine ion, a current density of 5 A / dm, and a plating solution temperature of 40 ° C. were used for 1,000 cc of distilled water.
한편, 상기 컬러산화공정단계는 상기 Ni도금처리를 통해 형성된 도금층의 표면에 산화열처리를 실시하여 컬러 산화피막층 형성시키고(S30), 이러한 컬러 산화피막층의 두께에 따른 빛의 간섭효과 차이로 인해 다양한 컬러가 구현되는데 산화 처리조건에 따라 금색, 보라색, 청색, 연두색, 녹색, 노란색 등으로 발현된다. On the other hand, the color oxidation process step is subjected to oxidation heat treatment on the surface of the plating layer formed through the Ni plating treatment to form a color oxide film layer (S30), various colors due to the difference in the interference effect of light according to the thickness of the color oxide film layer It is expressed in gold, purple, blue, light green, green and yellow depending on the oxidation treatment conditions.
구체적으로, 상기 컬러 산화공정단계에서 산화처리 조건은 발현시키고자 하는 색상에 따라 다르지만, 180℃∼3000℃의 산화성 분위기하에서 0.1초∼4시간 동안 실시하는 것이 바람직하다. Specifically, the oxidation treatment conditions in the color oxidation process step is different depending on the color to be expressed, it is preferably carried out for 0.1 seconds to 4 hours in an oxidizing atmosphere of 180 ℃ to 3000 ℃.
이러한 이유는, 산화열처리온도가 180℃를 하회하는 경우 소망하는 색상을 발현시키기 위해서는 지나치게 장시간 열처리를 하여야 하므로 경제적 관점에서 바람직하지 못하고, 또한 산화처리온도가 3000℃를 초과하는 경우에는 고온유지에 따른 비용상승의 문제가 있다.For this reason, when the oxidation heat treatment temperature is lower than 180 ° C., it is not preferable from an economic point of view because heat treatment must be performed for a long time to express a desired color, and when the oxidation heat treatment temperature exceeds 3000 ° C. There is a problem of cost increase.
한편, 산화열처리시간과 관련해서도 상기한 3000℃정도의 고온에서는 아주 짧은시간, 예를 들면 0.1초정도의 순간적인 산화열처리시간에서도 원하는 색상을 발현시킬 수 있음을 의미하며, 산화열처리시간이 4시간을 초과하는 경우에는 지나치게 장시간 산화처리에 따른 비용상승의 문제가 있다.On the other hand, in relation to the oxidation heat treatment time, it means that the desired color can be expressed even in a very short time, for example, an instant oxidation heat treatment time of about 0.1 seconds, and the oxidation heat treatment time is 4 If the time is exceeded, there is a problem of a cost increase due to the oxidation treatment for too long.
따라서, 본 발명에 따른 산화열처리 공정에서는 산화열처리 온도와 시간의 범위내에서 발현시키고자 하는 색상을 고려하여 임의로 선택할 수 있다.Therefore, the oxidation heat treatment process according to the present invention may be arbitrarily selected in consideration of the color to be expressed within the range of the oxidation heat treatment temperature and time.
이때 특히, 다양한 색상을 얻기 위해 고온에서 장시간 가열하는 경우에는 일정 두께의 컬러 산화피막층을 얻을 수 있으나, 산화물의 입자가 조대해져 원하는 광택과 내식성을 달성하는 것이 곤란하므로 산화처리에 필요한 온도와 시간을 적절히 관리할 필요가 있다.At this time, in particular, when a long time heating at high temperature to obtain a variety of colors can be obtained a color oxide film layer of a certain thickness, it is difficult to achieve the desired gloss and corrosion resistance due to the coarse particles of the oxide, the temperature and time required for the oxidation treatment It needs to be properly managed.
그리고, 상기 컬러 산화열처리를 실시하는 산화처리장치는 가스, 전기 등의 대류열원을 이용하는 모든 연속로 및 뱃치로 또는 레이저빔, 전자빔, 플라즈마빔 등의 복사열을 이용하는 모든 연속로 및 뱃치로중에서 선택된 1종의 산화처리장치로 할 수 있지만, 상기 산화열처리 조건을 만족시킬 수 있다면 다른 산화처리로도 사용할 수 있다.The oxidation treatment apparatus for performing color oxidation heat treatment is selected from all continuous furnaces and batch furnaces using convective heat sources such as gas and electricity, or all continuous furnaces and batch furnaces using radiant heat such as laser beams, electron beams, plasma beams, and the like. Although the oxidation treatment apparatus of the species can be used, other oxidation treatments can be used as long as the oxidation heat treatment conditions are satisfied.
한편, 본 발명에 의한 실시대상 소재인 스테인리스 강은 모재의 내식성을 확보하기 위해 사용하는 것으로 SUS 304, SUS 430, SUS 201 등으로 할 수 있지만 이에 특별히 제한되지 않는다.On the other hand, the stainless steel which is the target material of the present invention is used to secure the corrosion resistance of the base material, but may be SUS 304, SUS 430, SUS 201 or the like, but is not particularly limited thereto.
도 2는 본 발명의 다른 실시예에 따른 표면경도가 우수한 컬러 스테인리스강재의 제조방법을 나타낸 절차도이다.Figure 2 is a procedure showing a method of manufacturing a color stainless steel having excellent surface hardness according to another embodiment of the present invention.
도면을 참조하면, 본 발명의 다른 실시예에 따른 표면경도가 우수한 컬러 스테인리스강재의 제조방법은 상기한 경면가공을 실시하는 것과는 달리 표면조도를 개선하는 다른 방법으로 구리 또는 니켈도금(S11) 후 압연가공(S12)을 실시한다.Referring to the drawings, according to another embodiment of the present invention, a method of manufacturing a color stainless steel having excellent surface hardness is different from the above-described mirror processing, and then rolled after copper or nickel plating (S11) by another method of improving surface roughness. Processing (S12) is performed.
먼저, 상기 구리 또는 니켈도금처리는 전해도금 또는 무전해 도금 중 선택된 어느 1종의 처리로 하는 것이 좋다.First, the copper or nickel plating treatment may be any one selected from electroplating or electroless plating.
상기 압연가공은 구리 또는 니켈도금 후 원하는 조도 또는 이와 동등한 수준의 조도를 가지는 압연 롤을 사용하는 것이 바람직하다.The rolling process is preferably using a rolling roll having a desired roughness or an equivalent level roughness after copper or nickel plating.
상기한 구리 또는 니켈도금 후 압연가공을 하게되면, 상기 경면가공하는 방법에 비해 용이하게 실시할 수 있으며 특히 그 경면 연마면적이 크거나 고경도 스테인리스강 연마시 편리한 장점이 있다.When the rolling process after the copper or nickel plating is carried out, it can be easily carried out compared to the method of mirror processing, and in particular, the mirror polishing area is large or has the advantage of being convenient when polishing high hardness stainless steel.
(실시예1)Example 1
500mm×500mm×1.4t의 SUS 304 스테인리스강재를 조도 0.5㎛Ra로 랩핑연마한 후 증류수 1,000cc에 염화니켈 30g, 에틸렌디아민 62g, 티오글리콜산 1g, 염화납 10mg, 수소화 붕소나트륨 0.5g pH 는 12, 온도 50℃로 표준 무전해 니켈-붕소 도금을 실시하고(도금층 두께 8㎛) 공기분위기의 800℃에서 1분간 가열후 냉각한 결과 황금색의 색상을 얻었으며, 도금층의 경도는 900Hv 이었다.After lapping and polishing 500mm × 500mm × 1.4t SUS 304 stainless steel with roughness 0.5㎛Ra, 1,000g of distilled water 30g nickel chloride, 62g ethylenediamine, thioglycolic acid 1g, lead chloride 10mg, sodium borohydride 0.5g pH is 12 Standard electroless nickel-boron plating was carried out at a temperature of 50 ° C. (plating layer thickness was 8 μm), and after heating for 1 minute at 800 ° C. in an air atmosphere, a golden color was obtained. The hardness of the plating layer was 900 Hv.
(실시예2)Example 2
500mm×500mm×1.4t의 SUS 316 스테인리스강재를 0.4㎛Ra로 연마한 후 와트욕을 이용하여 증류수 1,000cc, 황산니켈 240g, 염화니켈 50g, 붕산 40g, 1, 2차 광택제 약간, 전류밀도 5A/dm , pH 4.5, 도금액 온도 45℃로 전기 니켈-붕소 도금을 실시하고(도금층 두께 9㎛) 공기분위기의 900℃에서 3분간 가열후 냉각한 결과 청색의 색상을 얻었으며 도금층의 경도는 850Hv 이었다.After grinding 500mm × 500mm × 1.4t SUS 316 stainless steel with 0.4µmRa, using watt bath, 1,000cc of distilled water, nickel sulfate 240g, nickel chloride 50g, boric acid 40g, 1st, 2nd varnish polisher, current density 5A / Electrolytic nickel-boron plating was carried out at a dm, pH 4.5, and plating solution temperature of 45 ° C. (plating layer thickness of 9 μm), and after cooling for 3 minutes at 900 ° C. in an air atmosphere, blue color was obtained and the hardness of the plating layer was 850 Hv.
(실시예3) Example 3
직경 27.8mm, 두께 0.8mm, 길이 300mm의 SUS 304 파이프를 0.3㎛Ra로 버프연마한 후 와트욕을 이용하여 증류수 1,000cc, 황산니켈 240g, 염화니켈 50g, 붕산 40g, 1, 2차 광택제 약간, 전류밀도 5A/dm , pH 4.5, 도금액 온도 45℃로 전기 니켈-붕소 도금을 실시하고(도금층 두께 11㎛) 공기분위기에서 900℃에서 5분간 가열후 냉각한 결과 연두색의 색상을 얻었으며 도금층의 경도는 870Hv 이었다.Buffing a SUS 304 pipe with a diameter of 27.8 mm, a thickness of 0.8 mm, and a length of 300 mm with 0.3 μm Ra, and then using a watt bath, 1,000 cc of distilled water, 240 g of nickel sulfate, 50 g of nickel chloride, 40 g of boric acid, a little of a first and second varnish Electro-nickel-boron plating was carried out at a current density of 5 A / dm, pH 4.5, and plating solution temperature of 45 ° C. (plating layer thickness 11 μm), and after cooling for 5 minutes at 900 ° C. in an air atmosphere, a greenish green color was obtained. Was 870 Hv.
상기한 바와 같이 이루어진 본 발명의 표면경도가 우수한 컬러 스테인리스강재의 제조방법은 다음과 같은 효과를 제공한다.The manufacturing method of the color stainless steel excellent surface hardness of the present invention made as described above provides the following effects.
첫째, 표면경도가 높아 내흠집성이 우수하고 다양하고 미려한 컬러 색조를 갖는 컬러 스테인리스강재의 제조방법을 제공할 수 있다.First, it is possible to provide a method for producing a colored stainless steel having a high surface hardness and excellent scratch resistance and having various and beautiful color tones.
둘째, 고온의 열원에 의해 금속소재의 산화에 의한 색상이 제공되므로 인체 에 무해하고, 장기간 사용시에도 탈색이 일어나지 않는다.Second, since the color of the metal material is provided by the high temperature heat source, it is harmless to the human body and does not discolor even after long-term use.
이상과 같이, 본 발명은 비록 한정된 실시예에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술사상과 아래에 기재될 특허청구범위의 균등 범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.As described above, although the present invention has been described by means of a limited embodiment, the present invention is not limited thereto and will be described below by the person skilled in the art and the technical spirit of the present invention. Of course, various modifications and variations are possible within the scope of the claims.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070050799A KR20080103717A (en) | 2007-05-25 | 2007-05-25 | Manufacturing method for color stainless steel with high scar resistance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070050799A KR20080103717A (en) | 2007-05-25 | 2007-05-25 | Manufacturing method for color stainless steel with high scar resistance |
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| KR20080103717A true KR20080103717A (en) | 2008-11-28 |
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| KR1020070050799A KR20080103717A (en) | 2007-05-25 | 2007-05-25 | Manufacturing method for color stainless steel with high scar resistance |
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