A manufacturing method of a casing including the following steps is provided. A magnesium alloy substrate is provided first. Next, a protective film is formed on the magnesium alloy substrate. A grinding treatment, a cutting treatment, or an engraving treatment is then performed to remove portions of the protective film and portions of the magnesium alloy substrate. An electrophoretic coating treatment is performed afterwards to form a light-transmissive coating layer covering the protective film and the magnesium alloy substrate. A casing is also provided.

A manufacturing method of a casing including the following steps is provided. A magnesium alloy substrate is provided first. Next, a protective film is formed on the magnesium alloy substrate. A grinding treatment, a cutting treatment, or an engraving treatment is then performed to remove portions of the protective film and portions of the magnesium alloy substrate. An electrophoretic coating treatment is performed afterwards to form a light-transmissive coating layer covering the protective film and the magnesium alloy substrate. A casing is also provided.

The embodiments of the present disclosure provide a method of fabricating a display backplate. The method of fabricating the display backplate may include forming a channel layer on a surface of a substrate. The channel layer may include a liquid storage portion, a plurality of pixel channels, and a plurality of moving electrodes. Each of the plurality of pixel channels may include a plurality of sub-pixel grooves. The method of fabricating the display backplate may further include printing ink droplets into the liquid storage portion and moving the ink droplets into the plurality of sub-pixel grooves by applying a moving voltage to the moving electrodes.

The embodiments of the present disclosure provide a method of fabricating a display backplate. The method of fabricating the display backplate may include forming a channel layer on a surface of a substrate. The channel layer may include a liquid storage portion, a plurality of pixel channels, and a plurality of moving electrodes. Each of the plurality of pixel channels may include a plurality of sub-pixel grooves. The method of fabricating the display backplate may further include printing ink droplets into the liquid storage portion and moving the ink droplets into the plurality of sub-pixel grooves by applying a moving voltage to the moving electrodes.

A hot stamped steel includes a base material that is formed of steel, a plated layer that is formed on a surface of the base material, and a phosphate coating that is formed on a surface of the plated layer; chemical composition of the plated layer contains 20.00 to 45.00 mass % of Al, 10.00 to 45.00 mass % of Fe, 4.50 to 15.00 mass % of Mg, 0.10 to 3.00 mass % of Si, 0.05 to 3.00 mass % of Ca, 0 to 0.50 mass % of Sb, 0 to 0.50 mass % of Pb, 0 to 1.00 mass % of Cu, 0 to 1.00 mass % of Sn, 0 to 1.00 mass % of Ti, 0 to 0.50 mass % of Sr, 0 to 1.00 mass % of Cr, 0 to 1.00 mass % of Ni, and 0 to 1.00 mass % of Mn with a remainder of Zn and impurities; the phosphate coating consists of zinc phosphate crystals containing 5.0 to 50.0 mass % of Mg and 0.5 to 5.0 mass % of Ca; and the adhesion amount of the phosphate coating per one surface is in a range of 0.1 to 10.0 g/m.sup.2.

A method for plating a work piece. An electroless layer of material is applied to the work piece using an electroless plating process. The method includes creating a barrier in electrical conductivity in the work piece to divide the work piece into a first segment and a second segment which are substantially electrically insulated from one another, prior to electroplating the work piece. A plurality of methods are disclosed for dividing the work piece into the first and second segments.

A method for plating a work piece. An electroless layer of material is applied to the work piece using an electroless plating process. The method includes creating a barrier in electrical conductivity in the work piece to divide the work piece into a first segment and a second segment which are substantially electrically insulated from one another, prior to electroplating the work piece. A plurality of methods are disclosed for dividing the work piece into the first and second segments.

A corrosion-resistant member including: a metal base material (10); a corrosion-resistant coating (30) formed on the surface of the base material (10); and a buffer layer (20) formed between the base material (10) and the corrosion-resistant coating (30). The base material (10) contains a main element having the highest mass content ratio among elements contained in the base material (10) and a trace element having a mass content ratio of 1% by mass or less. The corrosion-resistant coating (30) contains at least one kind selected from magnesium fluoride, aluminum fluoride, and aluminum oxide. The buffer layer (20) contains an element of the same kind as the trace element, and the content ratio obtained by energy dispersive X-ray analysis of the element of the same kind as the trace element contained in the buffer layer (20) is 2% by mass or more and 99% by mass or less.

A three-dimensional electrode-ozone oxidation-electrocatalytic membrane coupled wastewater treatment device, including a circulating fluidized bed reactor. The circulating fluidized bed reactor includes a funnel-shaped internal, a truncated cone, a fiber ball filter, a gas-liquid distribution plate, an inner cylinder, an intermediate cylinder and an outer cylinder. The inner cylinder, the intermediate cylinder and the outer cylinder are coaxial. The inner cylinder is an electrocatalytic membrane assembly; the intermediate cylinder is a gas diffusion electrode; and the outer cylinder is a stainless-steel mesh. A particle electrode is filled between the intermediate cylinder and the outer cylinder, and between the intermediate cylinder and the inner cylinder. The intermediate cylinder is connected to a negative electrode. The inner cylinder and the outer cylinder are connected to a positive electrode. A wastewater treatment method using the device is also provided herein.

A three-dimensional electrode-ozone oxidation-electrocatalytic membrane coupled wastewater treatment device, including a circulating fluidized bed reactor. The circulating fluidized bed reactor includes a funnel-shaped internal, a truncated cone, a fiber ball filter, a gas-liquid distribution plate, an inner cylinder, an intermediate cylinder and an outer cylinder. The inner cylinder, the intermediate cylinder and the outer cylinder are coaxial. The inner cylinder is an electrocatalytic membrane assembly; the intermediate cylinder is a gas diffusion electrode; and the outer cylinder is a stainless-steel mesh. A particle electrode is filled between the intermediate cylinder and the outer cylinder, and between the intermediate cylinder and the inner cylinder. The intermediate cylinder is connected to a negative electrode. The inner cylinder and the outer cylinder are connected to a positive electrode. A wastewater treatment method using the device is also provided herein.