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

Provided is a method of manufacturing a zinc-nickel alloy electroplated steel sheet. The method includes operations of: temper rolling a base steel sheet; immersing the temper-rolled base steel sheet in a sulfuric acid bath including nickel sulfate hydrate and zinc sulfate hydrate to form a zinc-nickel plating layer on the base steel sheet; and polishing the zinc-nickel plating layer and processing a hairline pattern.

Provided is a method of manufacturing a zinc-nickel alloy electroplated steel sheet. The method includes operations of: temper rolling a base steel sheet; immersing the temper-rolled base steel sheet in a sulfuric acid bath including nickel sulfate hydrate and zinc sulfate hydrate to form a zinc-nickel plating layer on the base steel sheet; and polishing the zinc-nickel plating layer and processing a hairline pattern.

A film plating machine and electroplating production line are provided. The film plating machine has a plating solution tank, conductive substrate film conveying devices and a power supply. A plating solution and an anode member are provided in the plating solution tank. The conductive substrate film conveying devices are provided at both sides of the plating solution tank and configured to clamp two opposite side edges of a horizontally-placed conductive substrate film and drive the conductive substrate film to horizontally enter and exit the plating solution tank in a first direction. A positive electrode of the power supply is electrically connected with the anode member, and a negative electrode of the power supply is electrically connected with the conductive substrate film through the conductive substrate film conveying devices.

A film plating machine and electroplating production line are provided. The film plating machine has a plating solution tank, conductive substrate film conveying devices and a power supply. A plating solution and an anode member are provided in the plating solution tank. The conductive substrate film conveying devices are provided at both sides of the plating solution tank and configured to clamp two opposite side edges of a horizontally-placed conductive substrate film and drive the conductive substrate film to horizontally enter and exit the plating solution tank in a first direction. A positive electrode of the power supply is electrically connected with the anode member, and a negative electrode of the power supply is electrically connected with the conductive substrate film through the conductive substrate film conveying devices.

A multilayered film for performing spectroscopic measurements in a fluid are provided. The multilayered film includes a substrate; a porous layer adjacent to the substrate; and a reflective layer formed on the porous layer, wherein the porous layer selectively allows a component of a fluid to be optically measured when the multilayered film is immersed in the fluid. A sensor for spectroscopic measurements in crude oil samples including a multilayered film as above is also provided. A method of manufacturing a multilayered film for spectroscopic measurements in fluids as above is also provided.

A multilayered film for performing spectroscopic measurements in a fluid are provided. The multilayered film includes a substrate; a porous layer adjacent to the substrate; and a reflective layer formed on the porous layer, wherein the porous layer selectively allows a component of a fluid to be optically measured when the multilayered film is immersed in the fluid. A sensor for spectroscopic measurements in crude oil samples including a multilayered film as above is also provided. A method of manufacturing a multilayered film for spectroscopic measurements in fluids as above is also provided.

A surface treatment process for a metal article provides a uniform and unblemished surface finish to the metal article. The surface treatment process anodizes the metal article to form an anodic oxide layer on a surface, and the metal article is activated using a pre-dyeing solution. The pre-dyeing solution contains complex organic acid and sodium acetate. The anodic oxide layer of the metal article is dyed for color and the dyed anodic oxide layer of the metal article is finally sealed.

Electroplating process is described for coating a ferrous alloy steel cathode substrate with an aluminum coating, the process comprises: a) immersing an aluminum anode substrate in a plating bath formulation comprising: a source of aluminum, an ionic liquid, a brightening agent, and a metal-salt compound; b) etching the cathode substrate by immersing it into the aluminum plating bath and conducting an anodic polarization step; c) electroplating the etched cathode substrate with the aluminum plating bath formulation; and d) rinsing with alcohol and water, and drying. Preferably, the process further comprises a heat treatment applied to the aluminum coated ferrous steel alloy obtained in step d).