KR200201245Y1 - A surface structure of metal resource for a watch - Google Patents

A surface structure of metal resource for a watch Download PDF

Info

Publication number
KR200201245Y1
KR200201245Y1 KR2020000002571U KR20000002571U KR200201245Y1 KR 200201245 Y1 KR200201245 Y1 KR 200201245Y1 KR 2020000002571 U KR2020000002571 U KR 2020000002571U KR 20000002571 U KR20000002571 U KR 20000002571U KR 200201245 Y1 KR200201245 Y1 KR 200201245Y1
Authority
KR
South Korea
Prior art keywords
plating layer
layer
plating
nip
ticn
Prior art date
Application number
KR2020000002571U
Other languages
Korean (ko)
Inventor
이상곤
Original Assignee
이상곤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이상곤 filed Critical 이상곤
Priority to KR2020000002571U priority Critical patent/KR200201245Y1/en
Application granted granted Critical
Publication of KR200201245Y1 publication Critical patent/KR200201245Y1/en

Links

Classifications

    • 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
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
    • 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
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
    • 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
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • 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
    • C25D7/005—Jewels; Clockworks; Coins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

(1)고안이 속하는 기술분야(1) Technical Field

본 고안은 금속으로 된 손목시계의 본체나 줄 표면, 또는 기타 시계류의 표면에 도금이나 도장, 코팅 등의 표면처리를 하여 구성되는 표면처리부의 구조를 개량하여 내식성 등을 향상시키려는 것이다.The present invention is to improve the corrosion resistance and the like by improving the structure of the surface treatment unit consisting of a surface treatment such as plating, painting, coating, etc. on the surface of the main body, string or other watches of metal watch.

(2)고안의 목적(2) Purpose of design

본 고안은 금속재 손목시계등의 표면처리 구조를 개량하여 생산원가를 줄이면서도 내식성과 내한성 및 내마모성을 크게 향상시킴으로써 뛰어난 품질을 가지면서 수명이 매우 긴 제품을 제공할 수 있게 함을 목적으로 하는 것이다.The object of the present invention is to improve the surface treatment structure of metal wristwatches, and to reduce the cost of production while greatly improving corrosion resistance, cold resistance and abrasion resistance, thereby providing a product having a very long life with excellent quality.

(3)고안의 구성(3) Composition of design

본 고안은 손목시계등에 사용되는 소재의 표면부에 표면처리를 함에 있어서, 통상 실시하는 도금층의 중간 일정위치에 NiP도금층을 형성함을 요지로 하는 것으로, 구체적인 실시 예를 살펴보면,The present invention is to the surface treatment of the surface portion of the material used in the wristwatch, etc., to form a NiP plated layer in a certain position in the middle of the plating layer to be carried out normally, looking at a specific embodiment,

소재(M)의 표면에 Ni도금층을 구성하고 그 위에 NiP도금층을 구성한 후 다시 그 위에 PNP 및 TiCN 도금층을 형성할 수가 있고, 또는 소재(M)의 표면에 Ni도금층과 NiP도금층 및 PNP도금층을 구성하고 그 위에 Pd도금층 및 TiCN처리층을 차례로 한 후 TiCN과 Au의 복합층 및 Au도금층을 형성할 수 있으며, 소재(M)의 표면에 Ni도금층을 구성한 후 그 위에 NiP도금층을 구성하고 다시 그 위에 PNP도금층을 형성할 수도 있다.The Ni plating layer may be formed on the surface of the material M, and the NiP plating layer may be formed thereon, and then the PNP and TiCN plating layers may be formed thereon, or the Ni plating layer, the NiP plating layer, and the PNP plating layer may be formed on the surface of the material M. After the Pd plating layer and the TiCN treatment layer are sequentially formed thereon, a composite layer of TiCN and Au and an Au plating layer can be formed, and after forming a Ni plating layer on the surface of the material (M), a NiP plating layer is formed thereon and again A PNP plating layer can also be formed.

(4)고안의 효과(4) effect of design

본 고안에 의하면 도금층의 일정한 위치에 NiP도금층을 형성함으로써 NiP도금의 장점을 최대한 누리면서 아울러 기타 다른 도금층의 장점도 얻을 수 있게되는 것으로, 저렴한 생산비용으로 표면처리가 가능하고 장식효과가 뛰어나면서 수명도 연장되는 등의 효과를 얻을 수 있다.According to the present invention, by forming the NiP plating layer at a certain position of the plating layer, it is possible to enjoy the advantages of the NiP plating as well as the advantages of the other plating layers. The surface treatment is possible at a low production cost, and the decorative effect is excellent while the service life is achieved. The effect of extending | stretching also can be acquired.

Description

시계용 금속소재의 표면구조{A surface structure of metal resource for a watch}A surface structure of metal resource for a watch}

본 고안은 금속으로 된 손목시계의 본체나 줄, 또는 벽시계 등 기타 시계용 금속소재의 표면에 도금이나 도장, 코팅 등의 표면처리를 하여 구성하되는 표면구조를 개량하여 내식성과 내한성 및 내 마모성을 향상시키려는 것이다.The present invention improves the surface structure that is made by plating, painting or coating the surface of metal watch body, strap, wall clock or other metal material such as wall clock. To improve.

주지된 바와 같이 금속재로 된 손목시계의 표면이나 벽시계, 탁상시계 등에는 외관상 장식적인 기능을 갖게하고 아울러 내식성 등을 향상시키기 위하여 도금, 도장, 코팅 등의 표면처리층을 구성하고 있다.As is well known, the surface of a metal watch, wall clock, table clock, and the like have a surface treatment layer such as plating, painting, coating, etc. in order to have a decorative function in appearance and to improve corrosion resistance.

그러한 종래의 표면구조 예를 살펴보면, 도 1과 같이 소재(M)의 표면에 Ni도금층을 구성한 후 그 위에 PNP도금층을 구성하고 그 위에 TiCN 도금층과 Au도금층을 형성하고 있으며, 또는 도 2와 같이 소재의 표면에 Ni도금층을 구성한 후 그 위에 PNP도금층만을 구성하여 제품을 생산하고 있다.통상은 습식도금을 이용하여 이러한 도금층을 구성하는데, 습식도금은 전기 분해에 의한 전착(전기적으로 부착되는 것)을 이용하여 음극(Cathode) 소재의 표면을 금속막층으로 덮는 것인데, 소재인 금속표면을 Emergy Paper 등으로 연마한 다음, 가열한 알칼리 용액으로 표면부위를 세척하고 다시 증류수로 깨끗이 한 다음 즉시 전해조 속에 넣어 행하는 것이다.Looking at an example of such a conventional surface structure, after forming a Ni plating layer on the surface of the material (M) as shown in FIG. 1 and then to form a PNP plating layer thereon, and formed a TiCN plating layer and Au plating layer thereon, or as shown in FIG. The Ni-plated layer is formed on the surface of the product, and only the PNP-plated layer is formed thereon to produce the product. Usually, such a plating layer is formed by wet plating, and the wet plating is electrodeposition (electrically attached) by electrolysis. The surface of the cathode material is covered with a metal film layer.The metal surface, which is the material, is polished with Emergy Paper, etc., and then the surface area is washed with a heated alkaline solution, cleaned with distilled water, and then immediately put into an electrolytic cell. will be.

이러한 종래의 표면구조로는 내식성과 내한성이 부족하여 표면장식에 따르는 수명이 짧을 수밖에 없고 내식성을 향상시키기 위해 Pd가 함유된 PNP도금층을 구성하고는 있지만 Pd의 가격이 고가이기 때문에 생산원가가 높을 수 밖에 없으며, PNP와 아울러 TiCN도금층을 구성하더라도 내식성과 내한성 및 내마모성 등의 모든 조건을 골고루 향상시키는 데는 한계가 있는 것이다.Such a conventional surface structure is short in corrosion resistance and cold resistance, and has a short lifespan due to surface decoration and constitutes a PNP plated layer containing Pd to improve corrosion resistance, but the production cost may be high due to the high price of Pd. In addition, even if PNP and TiCN plated layer is formed, there is a limit to evenly improving all conditions such as corrosion resistance, cold resistance and abrasion resistance.

상기 문제점을 충분히 감안하여 안출한 본 고안은 시계용 금속소재의 표면구조를 개량하여 생산원가를 줄이면서도 내식성과 내한성 및 내마모성을 골고루 향상시킴으로써 뛰어난 품질을 가지면서 수명이 매우 긴 제품을 제공할 수 있게 함을 목적으로 하는 것이다.The present invention devised in view of the above problems sufficiently improves the surface structure of the metal material for watches to reduce the cost of production and to improve the corrosion resistance, cold resistance and wear resistance evenly to provide a product having a very long life and excellent quality. The purpose is to.

도 1은 종래 시계의 표면구조 예를 도시한 확대 단면도1 is an enlarged cross-sectional view showing an example of the surface structure of a conventional watch;

도 2는 종래 시계의 다른 표면구조 예를 도시한 확대 단면도Figure 2 is an enlarged cross-sectional view showing another surface structure example of a conventional watch

도 3은 본 고안의 한 실시 예를 나타낸 확대 단면도Figure 3 is an enlarged cross-sectional view showing an embodiment of the present invention

도 4는 본 고안의 다른 실시 예를 도시한 확대 단면도Figure 4 is an enlarged cross-sectional view showing another embodiment of the present invention

도 5는 본 고안의 다른 실시 예를 도시한 확대 단면도***도면중 주요 부분에 대한 부호의 설명***1:NiP도금층 11:Ni도금층12:PNP도금층 13:TiCN처리층14:Pd도금층 15:복합층(TiCN+Au)16:Au도금층5 is an enlarged cross-sectional view showing another embodiment of the present invention *** Explanation of symbols for the main parts of the drawings *** 1: NiP plating layer 11: Ni plating layer 12: PNP plating layer 13: TiCN treatment layer 14: Pd plating layer 15: composite layer (TiCN + Au) 16: Au plated layer

본 고안은 시계용 금속소재의 표면부에 표면처리층을 구성함에 있어서, 통상 실시하는 여러개의 도금층 중간 임의의 위치에 NiP도금층(1)을 형성함을 요지로 하는 것으로, NiP도금은 Ni와 P를 6:4로 하여 습식도금 방법으로 도금층을 형성하는 것이고 도금조건은 pH범위 3.5 ~ 5.5, 온도범위 40 ~ 90℃, 전류밀도 0.5A/d㎡ ~ 5A/d㎡, 도금두께 1 ~ 10㎛ 로 하는 것이다.The present invention aims to form the NiP plating layer 1 at any position among a plurality of plating layers that are commonly used in forming a surface treatment layer on the surface portion of a watch metal material. Is 6: 4 to form a plating layer by the wet plating method, the plating conditions are pH range 3.5 ~ 5.5, temperature range 40 ~ 90 ℃, current density 0.5A / dm ~ 5A / dm, plating thickness 1 ~ 10㎛ It is to be.

상기 도금조건은 제품의 장식기능을 하기 위한 NiP도금층(1)을 구성함에 있어서 최적의 효과를 나타내는 것이 실험을 통하여 얻어진 것이다.The plating conditions are obtained through experiments to show the optimum effect in forming the NiP plated layer (1) for the decorative function of the product.

이러한 본 고안에 따른 구체적인 실시 예를 살펴보면 다음과 같다.Looking at a specific embodiment according to the present invention as follows.

도 3에 도시된 표면구조는 소재(M)의 표면에 Ni도금층(11)을 구성하고 그 위에 NiP도금층(1)을 구성한 후 다시 그 위에 PNP도금층(12) 및 TiCN처리층(13)을 차례로 구성하는 것이다.In the surface structure shown in FIG. 3, the Ni plating layer 11 is formed on the surface of the material M, and the NiP plating layer 1 is formed thereon, and then the PNP plating layer 12 and the TiCN treatment layer 13 are sequentially formed thereon. To construct.

도 4에 도시된 표면구조는 소재(M)의 표면에 Ni도금층(11)을 구성한 후 그 위에 NiP도금층(1)을 구성하며, 다시 그 위에 PNP도금층(12)과 Pd도금층(14) 및 TiCN처리층(13)을 차례로 구성한 후 TiCN과 Au의 복합층(15) 및 Au도금층(16)을 구성하는 것이다.The surface structure shown in FIG. 4 constitutes a NiP layer 11 on the surface of the material M, and then constitutes a NiP plated layer 1 thereon, and again a PNP plated layer 12, a Pd plated layer 14, and TiCN thereon. After the treatment layer 13 is sequentially formed, the composite layer 15 of TiCN and Au and the Au plating layer 16 are formed.

도 5에 도시된 것은 소재(M)의 표면에 Ni도금층(11)을 구성한 후 그 위에 NiP도금층(1)을 구성하고 다시 그 위에 PNP도금층(12)만을 형성하는 것이다.5 shows that after forming the Ni plating layer 11 on the surface of the material M, the NiP plating layer 1 is formed thereon, and only the PNP plating layer 12 is formed thereon.

상기한 바와 같은 본 고안의 구조에 따르면 NiP도금층(1)과 함께 Ni도금층(11), PNP도금층(12), TiCN처리층(13) 혹은 복합층(TiCN + Au ;15)을 복합 표면 처리함으로써 NiP도금층(1)의 단점을 보완하고 내마모성도 향상시킬 수 있으며, 아울러 각 소재의 표면처리 과정 중 각도금층 사이의 임의의 위치에 NiP도금층(1)을 구성함으로써 각 도금층의 장점을 살리며 매우 뛰어난 제품의 표면을 얻을 수 있게 되는 것으로, NiP의 도금물질은 미세 조직상 비정질구조를 나타내기 때문에 내식성 및 내한성이 가장 뛰어나면서 비용도 적게 소요되는 장점이 있는 도금이기 때문이다.According to the structure of the present invention as described above by the composite surface treatment of the Ni plating layer 11, PNP plating layer 12, TiCN treatment layer 13 or the composite layer (TiCN + Au; 15) together with the NiP plating layer (1) The NiP plating layer 1 can be used to compensate for the shortcomings of the NiP plating layer and to improve wear resistance. The NiP plating layer 1 can be formed at arbitrary positions between the angular gold layers during the surface treatment of each material to take advantage of each plating layer and to provide excellent products. It is possible to obtain the surface of, because the NiP plating material is a plating having the advantages of excellent corrosion resistance and cold resistance and low cost because it exhibits an amorphous structure on the microstructure.

각 표면처리층 구성의 특성과 NiP도금과 대비한 성질을 자세히 살펴보면 다음의 표 1과 같다.The characteristics of each surface treatment layer composition and the properties compared with NiP plating are described in detail in Table 1 below.

[표 1] TABLE 1

그리고 복합층(TiCN+Au)은 PVD방법으로 0.5~5μ두께로 구성되는 것으로, Ti, C, N 및 Au성분이 층착되면서 복합된 층 및 다양한 층을 형성하는 것이다.상기한 각 실시 예는 제품에 따라 가장 적합한 도금구조를 제시한 것으로, NiP도금의 장점을 최대한 살릴 수 있는 구성이라 할 것이다.In addition, the composite layer (TiCN + Au) is composed of 0.5 ~ 5μ thickness by the PVD method, to form a composite layer and various layers as the Ti, C, N and Au components are laminated to each other. According to the most suitable plating structure is presented, it will be called a configuration that can make the most of the advantages of NiP plating.

이상 설명한 바와 같이 본 고안에 의하면 도금층의 일정한 위치에 NiP도금층(1)을 형성함으로써 NiP도금의 장점을 최대한 누리면서 아울러 기타 다른 도금층의 장점도 얻을 수 있게 되는 것으로, 저렴한 생산비용으로 표면처리가 가능하고 장식효과가 뛰어나면서 수명도 연장되는 효과를 얻을 수 있는 매우 유용한 고안인 것이다.As described above, according to the present invention, by forming the NiP plating layer 1 at a predetermined position of the plating layer, it is possible to enjoy the advantages of the NiP plating as much as possible and to obtain the advantages of the other plating layers, and the surface treatment can be performed at a low production cost. It is a very useful design that can achieve the effect of extending the life and excellent decorative effect.

Claims (3)

손목시계의 본체나 줄, 또는 기타 시계류에 사용되는 금속재 소재의 표면구조에 있어서, 소재(M)의 표면에 통상적으로 구성하는 Ni도금층(11), PNP도금층(12), Pd도금층(14), TiCN처리층(13), TiCN과 Au의 복합층(15) 및 Au도금층(16) 등 여러가지 도금층의 중간 임의의 위치에 NiP도금층(1)을 구성함을 특징으로 하는 시계용 금속소재의 표면구조.In the surface structure of the metallic material used for the main body, the strap, or other watches of the watch, the Ni plating layer 11, PNP plating layer 12, Pd plating layer 14, which are usually formed on the surface of the material M, Surface structure of a metal material for watches, comprising the NiP plating layer 1 formed at an arbitrary position in the middle of various plating layers such as the TiCN treatment layer 13, the TiCN and Au composite layer 15, and the Au plating layer 16. . 제 1항에 있어서,The method of claim 1, 소재(M)의 표면에 공지와 같이 Ni도금층(11)과 PNP도금층(12)을 차례로 구성하되, Ni도금층(11)의 위에 NiP도금층(1)을 먼저 구성한 후 그 위에 PNP도금층(12)을 구성함을 특징으로 하는 시계용 금속소재의 표면구조.The Ni plating layer 11 and the PNP plating layer 12 are sequentially formed on the surface of the material M, and the NiP plating layer 1 is first formed on the Ni plating layer 11, and then the PNP plating layer 12 is formed thereon. Surface structure of a metal material for watch, characterized in that the configuration. 제 1항 또는 제 2항에 있어서,The method according to claim 1 or 2, 소재(M)의 표면에 Ni도금층(11)과 NiP도금층(1) 및 PNP도금층(12)을 차례로 구성하되, 그 위에 또 다시 Pd도금층(14), TiCN처리층(13), TiCN과 Au의 복합층(15), Au도금층(16)을 차례로 구성함을 특징으로 하는 시계용 금속소재의 표면구조.The Ni plating layer 11, the NiP plating layer 1, and the PNP plating layer 12 are sequentially formed on the surface of the material M, and the Pd plating layer 14, the TiCN treatment layer 13, TiCN and Au Surface structure of a metal material for a watch, characterized in that the composite layer (15), Au plating layer (16) in order.
KR2020000002571U 2000-01-31 2000-01-31 A surface structure of metal resource for a watch KR200201245Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020000002571U KR200201245Y1 (en) 2000-01-31 2000-01-31 A surface structure of metal resource for a watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020000002571U KR200201245Y1 (en) 2000-01-31 2000-01-31 A surface structure of metal resource for a watch

Publications (1)

Publication Number Publication Date
KR200201245Y1 true KR200201245Y1 (en) 2000-11-01

Family

ID=19639895

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020000002571U KR200201245Y1 (en) 2000-01-31 2000-01-31 A surface structure of metal resource for a watch

Country Status (1)

Country Link
KR (1) KR200201245Y1 (en)

Similar Documents

Publication Publication Date Title
US9453287B2 (en) Ceramic element inlaid with at least one metallic decoration
US9150978B2 (en) Device for fixedly securing a metallic inlay
KR101636331B1 (en) Method for manufacturing decorative metal plate using cloisonne technique and decorative metal plate by the mehtod
WO2002014583A3 (en) Electroplated aluminum parts and process of production
JP4642317B2 (en) Decorative article with white coating
JP5436569B2 (en) Precious metal-containing layer continuum for decorative articles
KR200201245Y1 (en) A surface structure of metal resource for a watch
KR20050049404A (en) Method for the deposition of nickel- and chromium(vi)-free metal matt layers
JP3621874B2 (en) Watch exterior parts
KR200310431Y1 (en) The precious metal with a negative ion or bio infrared rays radiation material
KR200191855Y1 (en) A surface of steel rim of spectacles treating structure
KR20090034672A (en) Alloy electroforming method
CN102899695A (en) Electroplating method of nickel-free alloy plating layer
KR20090093122A (en) Plating Method of RF Devices and RF Devices Produced by the Method
KR20000024227A (en) A surface treating method of steel material for ornament
EP2864526B1 (en) Process for the production of a component of valves, of fittings or of tap assemblies, and component
CN202954113U (en) Copper-tin alloy plating structure
ES2661493T3 (en) Object with surface coating layer obtained by electrolytic deposition, electrolytic solution used for said deposition and method for manufacturing said object
KR20030072218A (en) Method for plating marble with gold
KR20070010514A (en) Sinker
JPH04329893A (en) External ornamental parts for timepiece
JPH0118610Y2 (en)
CN111826698A (en) Method for preparing clock parts by using hard gold
CA1303802C (en) Gold colored ware
JP2000355793A (en) White plated product and its production

Legal Events

Date Code Title Description
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20011214

Year of fee payment: 3

LAPS Lapse due to unpaid annual fee