A method for producing metal decorations on a curved dial made of insulating material includes forming, by a method of the LIGA-UV type, a mould made of photosensitive resin and of galvanically depositing a layer of at least one metal from the conductive layer in order to form a block substantially reaching the upper surface of the photosensitive resin.

A method for producing metal decorations on a curved dial made of insulating material includes forming, by a method of the LIGA-UV type, a mould made of photosensitive resin and of galvanically depositing a layer of at least one metal from the conductive layer in order to form a block substantially reaching the upper surface of the photosensitive resin.

An object of the present invention is to provide a method and system of electroplating using an anode that can be prepared relatively easily without the need for ancillary equipment or anolyte management, and without the need for expensive metals or special metals.

The present invention relates to a method of electroplating an article with metal, the method comprising the steps of: allowing a current to flow in a plating bath containing ions of the metal and an organic compound additive, wherein the plating bath comprises the article as a cathode and a conductive base material as an anode, a part of a surface of the conductive base material is covered with an insulating material, and a remaining part is exposed, and a current flowing portion is dispersedly present in the anode.

An object of the present invention is to provide a method and system of electroplating using an anode that can be prepared relatively easily without the need for ancillary equipment or anolyte management, and without the need for expensive metals or special metals.

The present invention relates to a method of electroplating an article with metal, the method comprising the steps of: allowing a current to flow in a plating bath containing ions of the metal and an organic compound additive, wherein the plating bath comprises the article as a cathode and a conductive base material as an anode, a part of a surface of the conductive base material is covered with an insulating material, and a remaining part is exposed, and a current flowing portion is dispersedly present in the anode.

A method for surface treatment of a matte tin-plated product, which is configured for heating the matte tin electroplated on a surface of the product into a bright tin. The method for surface treatment includes heating the surface of the matte tin-plated product with infrared rays.

A method for surface treatment of a matte tin-plated product, which is configured for heating the matte tin electroplated on a surface of the product into a bright tin. The method for surface treatment includes heating the surface of the matte tin-plated product with infrared rays.

A method for surface treatment of a matte tin-plated product, which is configured for heating the matte tin electroplated on a surface of the product into a bright tin. The method for surface treatment includes heating the surface of the matte tin-plated product with infrared rays.

A method for surface treatment of a matte tin-plated product, which is configured for heating the matte tin electroplated on a surface of the product into a bright tin. The method for surface treatment includes heating the surface of the matte tin-plated product with infrared rays.

Provided is a zinc-nickel-alloy-electroplated steel sheet comprising a base steel sheet, and a zinc-nickel-plated layer which is located on at least one surface of the base steel sheet and which has a hairline pattern formed thereon, wherein the surface roughness of the surface of the base steel sheet, which forms an interface with the zinc-nickel-plated layer, is 0.7-1.0 um on the basis of the center line average roughness (R.sub.a). According to the present invention, provided are: a zinc-nickel-electroplated steel sheet, which has a beautiful surface appearance after hairline processing, has better price competitiveness than a conventional stainless steel or a vinyl-coated steel, and can ensure high productivity in a coil polishing line; and a manufacturing method therefor.

Provided is a zinc-nickel-alloy-electroplated steel sheet comprising a base steel sheet, and a zinc-nickel-plated layer which is located on at least one surface of the base steel sheet and which has a hairline pattern formed thereon, wherein the surface roughness of the surface of the base steel sheet, which forms an interface with the zinc-nickel-plated layer, is 0.7-1.0 um on the basis of the center line average roughness (R.sub.a). According to the present invention, provided are: a zinc-nickel-electroplated steel sheet, which has a beautiful surface appearance after hairline processing, has better price competitiveness than a conventional stainless steel or a vinyl-coated steel, and can ensure high productivity in a coil polishing line; and a manufacturing method therefor.