Abstract: An evaporating device comprises a gas guiding element, an evaporating boat received in the gas guiding element to define a receiving space between the evaporation tray and the gas guiding element, and a gas channel. The evaporation tray comprises a bottom wall and two opposing first sidewalls and two opposing second sidewalls extending from the periphery of the first bottom wall. At least one of the first sidewalls and/or at least one of the second sidewalls defines a number of gas holes. The gas holes communicate with the receiving space. One end of the gas channel connects the gas guiding element and communicates with the receiving space to feed gas into the receiving space. A vacuum evaporation device using the evaporating device is also provided.

Abstract: A device for making nano-scale particles of titanium dioxide includes a vacuum chamber; an evaporator, a gas supplier, a vacuum pump assembly, and a product collecting device. The evaporator is mounted in the vacuum chamber. The gas supplier communicates with the vacuum chamber. The vacuum pump assembly communicates with the vacuum chamber. The product collecting device includes a pump, a guide pipe connected with the pump, and a powder collector communicating with the guide pipe. The pump communicates with the vacuum chamber. The guide pipe is inserted in the powder collector, the powder collector is filled with organic solvents. A method of making nano-scale particles of titanium dioxide using the device is also provided.

Abstract: A coated article includes a metal substrate, a carbosiliconized layer formed on the metal substrate, a metal bonding layer formed on the carbosiliconized layer, and a color layer formed on the metal bonding layer. The carbosiliconized layer is formed by carbosiliconizing the metal substrate to enable elemental carbon and elemental silicon to penetrate into a surface layer of the metal substrate. The color layer consists of ceramic material. A method for making the coated article is also described.

Abstract: A binding agent includes 3-glycidyloxypropyltrimethoxysilane, ethanol, isopropyl alcohol, alkylphenol ethoxylate, acetic acid and sodium dodecylbenzenesulfonate. The surface treatment method using the binding agent and articles manufactured by the method is also provided.

Abstract: A surface treatment method for metal substrate includes: a metal substrate is provided; a first color layer is deposited on the metal substrate, the first color layer being a TiC layer or a TiN layer; a second color layer is deposited on the first color layer, the first color layer being a CrC layer or a CrN layer, the color of the first color layer being different from the color of the second color layer; forming a shielding layer on partially of the second color layer; electrochemical etching the metal substrate, the second color layer not covered with the shielding layer being removed to form a recessed portion, the recessed portion being extend through the second color layer. A coated article for manufactured by the surface treatment method is also provided.

Abstract: A housing for an electronic device includes a substrate made of plastic, a base paint layer, a pattern layer, a tin layer, a silicon oxide layer, and a top paint layer. The substrate has an outer surface and an inner surface opposite to the outer surface and facing the interior of the electronic device. The base paint layer is formed on the outer surface. The pattern layer is directly formed on the base paint layer and partially covers the base paint layer. The tin layer is directly formed on the pattern layer and covers the pattern layer and portions of the base paint layer not covered by the pattern layer. The silicon oxide layer is directly formed on the entire tin layer. The top paint layer is formed on the silicon oxide layer. A method for making the housing is also described.

Abstract: A coated article includes a substrate, a layer formed on the substrate. The layer containing polytetrafluroethylene and aluminum oxide, and the weight ratio of the aluminum oxide to the polytetrafluroethylene being between about 1:1.5 and 1:1.2. A method for making the coated article is also described.

Abstract: A polydimethyl siloxane sol includes polydimethyl siloxane, isopropyl alcohol, ethanol, fumed silicon dioxide, hydrochloric acid, and water. A surface treatment method for a metal substrate using the polydimethyl siloxane sol and a coated article manufactured by the method is also provided.

Abstract: An evaporating device comprises a gas guiding element, an evaporating boat received in the gas guiding element to define a receiving space between the evaporation tray and the gas guiding element, and a gas channel. The evaporation tray comprises a bottom wall and two opposing first sidewalls and two opposing second sidewalls extending from the periphery of the first bottom wall. At least one of the first sidewalls and/or at least one of the second sidewalls defines a number of gas holes. The gas holes communicate with the receiving space. One end of the gas channel connects the gas guiding element and communicates with the receiving space to feed gas into the receiving space. A vacuum evaporation device using the evaporating device is also provided.

Abstract: A method for making a device housing includes the steps of: providing a substrate; forming a base paint layer on the substrate by spraying; sensitizing a surface of the base paint layer; activating the surface of the base paint layer; providing a first water solution and a second water solution, the first water solution containing silver nitrate and ammonia water, the second water solution containing potassium sodium tartrate and sodium hydroxide; forming a silver layer on the sensitized and activated surface of the base paint layer by simultaneously spraying the first water solution and the second water solution on the sensitized and activated surface of the base paint layer; and forming a protective layer on the silver layer.

Abstract: A co-evaporation alloy material includes a first evaporation material and a second evaporation material, the first evaporation material being completely covered by the second evaporation material. The second evaporation material is a metal or metal alloy different from the first evaporation material. The melting point of the first evaporation material is lower than the melting point of second evaporation material. An evaporation coating method using the co-evaporation alloy material is also provided.

Abstract: An electrolyte for removing metal-carbide/nitride coatings or metal-carbide-nitride coatings from substrates, the electrolyte includes an acid, an inhibiter and a complexant. The acid is a mixture of a sulfuric acid and a weak acid. The inhibiter is an organic compound containing hydrophilic group, lipophilic group, and at least one polar group selected from nitrogen-containing group, sulfur-containing group, and hydroxyl group. The complexant is capable of complexing with Fe3+. A method for removing the metal-carbide/nitride coatings or metal-carbide-nitride coatings using the electrolyte is also provided.

Abstract: A coated article includes a metal substrate, a TiSiN layer formed on the metal substrate, and a TiN layer formed on the TiSiN layer. The TiSiN layer consists essentially of elemental Ti, elemental Si, and elemental N in non-homogenous deposition. The elemental Si within the TiSiN layer has a mass percentage gradually decreasing from the bottom of the TiSiN layer near the substrate to the top of the TiSiN layer away from the substrate. The elemental N has a mass percentage gradually increasing from the bottom of the TiSiN layer near the substrate to the top of the TiSiN layer away from the substrate. The TiN layer consists essentially of elemental Ti and elemental N. A method for making the coated article is also described.

Abstract: A silicon dioxide sol includes tetraethyl silicate, sodium silicate, dimethylformamide, absolute ethanol, hydrochloric acid and water. A surface treatment method for metal substrate using the silicon dioxide sol and articles manufactured by the method is also provided, the surface treatment providing significantly better ant-corrosion and anti-wear properties for the metal substrate.

Abstract: A surface treatment method for metal substrate includes: a metal substrate is provided; a first color layer is deposited on the metal substrate, the first color layer being a TiC layer or a TiN layer; a second color layer is deposited on the first color layer, the first color layer being a CrC layer or a CrN layer, the color of the first color layer being different from the color of the second color layer; forming a shielding layer on partially of the second color layer; electrochemical etching the metal substrate, the second color layer not covered with the shielding layer being removed to form a recessed portion, the recessed portion being extend through the second color layer. A coated article for manufactured by the surface treatment method is also provided.

Abstract: A windpipe used in a vacuum coating device includes an outer pipe and an inner pipe positioned in the outer pipe. The inner pipe defines a plurality of first outlets arranged in a line in the peripheral wall of the inner pipe along the axial direction. The outer pipe defines a plurality of second outlets arranged in a line in the peripheral wall of the outer pipe along the axial direction.

Abstract: A device housing is provided. The device housing includes a substrate, a base paint layer formed on the substrate, a silver layer formed on the base paint layer, and a protective layer directly formed on the silver layer. A method for making the device housing is also provided.

Abstract: A device for making nano-scale particles of titanium dioxide includes a vacuum chamber; an evaporator, a gas supplier, a vacuum pump assembly, and a product collecting device. The evaporator is mounted in the vacuum chamber. The gas supplier communicates with the vacuum chamber. The vacuum pump assembly communicates with the vacuum chamber. The product collecting device includes a pump, a guide pipe connected with the pump, and a powder collector communicating with the guide pipe. The pump communicates with the vacuum chamber. The guide pipe is inserted in the powder collector, the powder collector is filled with organic solvents. A method of making nano-scale particles of titanium dioxide using the device is also provided.

Abstract: A surface treatment method for diamond-like carbon layer include at least the following steps: a substrate is provided; a diamond-like carbon layer is formed on the substrate by ion beam assisted magnetron sputtering deposition; fluorine ions and silicone ions is doped in the diamond-like carbon layer at a temperature of about 400° C. to about 600° C. A coated article manufactured by the method is also provided.

Abstract: A housing for an electronic device includes a substrate made of plastic, a base paint layer, a pattern layer, a tin layer, a silicon oxide layer, and a top paint layer. The substrate has an outer surface and an inner surface opposite to the outer surface and facing the interior of the electronic device. The base paint layer is formed on the outer surface. The pattern layer is directly formed on the base paint layer and partially covers the base paint layer. The tin layer is directly formed on the pattern layer and covers the pattern layer and portions of the base paint layer not covered by the pattern layer. The silicon oxide layer is directly formed on the entire tin layer. The top paint layer is formed on the silicon oxide layer. A method for making the housing is also described.