Abstract:
The invention concerns a method of coating preferably electrically non-conducting surfaces with preferably electrically conducting finely particulate materials by dipping the article to be coated into the following baths in succession: a) an aqueous solution of polymers (pre-dip solution), b) an aqueous dispersion of the finely particulate material, the dispersion also containing surfactants to prevent sedimentation and a salt to ensure the controlled destabilization of the dispersion. Coating with electrically conducting particles, such as graphite or carbon black, can be carried out in preparation for the galvanic deposition of a metal.
Abstract:
A process for coating a molded article of a polypropylene resin composition comprising polypropylene (A), a specified ethylene/propylene/diene terpolymer rubber (B), a specified ethylene/propylene copolymer rubber (C) and a specified polyhydroxypolyolefin (D), each in an amount satisfying the following relations: 10 « (B) + (C)/(A) + (B) + (C) « 60 (wt %), 1 « (C)/(B) + (C) « 50 (wt %), 0.5 « (D)/(A) + (B) + (C) + (D) « 10 (wt %) without the necessity for cleaning with an organohalogen solvent, which process comprises conducting priming or plasma treatment followed by topcoating. The molded article thus coated has a tightly adhered coating, a good gasohol resistance and an excellent appearance.
Abstract:
PURPOSE: An environment-friendly coating method of a vehicle using iron oxide nano-particle photonic crystal is provided to gain good color sense, and to adjust colors according to the intensity of a magnetic field. CONSTITUTION: An environment-friendly coating method of a vehicle using iron oxide nano-particle photonic crystal includes the following steps of: manufacturing iron hydroxide powder by reacting iron precursor compounds and a base; washing hydroxy iron with water; separating the water and the hydroxy iron; manufacturing amorphous hydroxy iron nano particles of a colloidal phase by mixing the hydroxy iron and polymer plastic; manufacturing the hydroxy iron nano particles; manufacturing three-dimensional iron oxide nano particles photonic crystals; and coating the photonic crystals on an object(13).
Abstract:
PURPOSE: A binding method of metal powder in synthesized resin form is provided. Obtained material is excellent in antibacterial effect. CONSTITUTION: A binding method of metal powder in synthesized resin form is : preparing metal solution of 10 ppm, wherein metal is selected from gold, silver and copper, their degree of purity is over 99%, particle size of the metal is from 0.005-0.015 micrometer ; impregnating synthesized resin form in the prepared metal solution or spraying the prepared solution onto synthesized resin form.
Abstract:
PURPOSE: A nanoceramic coating method using electrolysis and a portable terminal using the same are provided to arbitrarily adjust the thickness of a coating layer without damage of a case in adjusting the intensity of applied low voltage. CONSTITUTION: A nanoceramic coating method using electrolysis comprises the following steps: installing a first electrode and a second electrode(24) in an electrolytic cell(10); filling electrolyte(11) in the electrolytic cell; connecting a case(100) on the first electrode; installing the case in the electrolyte; applying synthetic direct current with a power supply unit(20); and forming a coating layer with the electrolysis on the surface of the case.
Abstract:
An electro-spray type film coating system and a spraying device for the same are provided to equally apply a base material on the large area by conglomerating spraying nozzles by installing hollow needles by using sleeves with a fine diameter. The electro-spray type film coating system is composed of a solution supply unit(100) for feeding a coating solution; a high voltage supply unit(103) for applying high voltage to electrically charge the coating solution; a spraying device(105) having spraying nozzles conglomerated and aligned to spray the charged coating solution on a base material in a fine line or particle form; a pretreatment unit(112) changing the electric property of the base material before spraying the charge coating solution; and a thermal treatment unit(116) hardening the base material coated with the coating solution by the spraying device by applying heat to the base material.
Abstract:
PURPOSE: A substrate coater apparatus supplying ions to a substrate chuck and a substrate to be processed by an ionizer is provided to prevent micro particles from sitting down on the surface of a substrate chuck and a substrate to be processed by having micro particles floating around a substrate coater apparatus have an opposite polarity to the micro particles. CONSTITUTION: A substrate coater apparatus (100) comprises a substrate chuck (110) of a non-conducting material which mounts a substrate (G) to be processed; a slit nozzle (120) which coats a chemical solution (55) on the surface of the substrate to be processed which has been mounted on the substrate chuck; a nozzle transport apparatus (125) which transports the slit nozzle along the substrate chuck; and an ionizer (140) which is installed in the nozzle transport apparatus, and neutralizes the substrate chuck. The ionizer is installed in the front site of the nozzle transport apparatus so as to move ahead of the front of the slit nozzle.
Abstract:
PURPOSE: A plastic multicolor electrodeposition coating method is provided to implement design about various characters or patterns on the plastic surface through a simple process, and to increase productivity of a process. CONSTITUTION: A plastic multicolor electrodeposition coating method includes the following steps of: treating and plating the surface of a plastic base material(S110); generating a first deposition layer by depositing a first color on a plated layer(S120); etching a part of the first deposition layer by irradiating a laser on the part of the first deposition layer(S130); generating a second deposition layer by depositing a second color on a first etched groove of the first deposition layer etched by irradiation of the laser(S140); and generating a third deposition layer(S150).
Abstract:
In a powder coating process, a primer step is implemented prior to electrostatically applying the powder coating, either in advance of preheating the object to be coated or subsequent thereto, depending upon the selection of materials used in the object to be coated, the primer material being diluted fabric softener applied in a fine mist spray or fog to the object.
Abstract:
Impregnation plant for internally hollow cylindrical components (stators) of electric motors including working stations arranged linearly and sequentially, managed and controlled by central processing unit; and a plurality of motor-driven elements to impart rotatory motion, in both directions of rotation, and tilting motion, in both directions respective to a predefined plane, to each component mounted onto a respective support device when such support device is inserted into the plant working stations. Each support device has a spring collet in turn has blocks clamping the component onto the inner diameter of its respective cylindrical body. Each spring collet entirely crosses the component cylindrical body to rest on both of its respective circumferential ends. An impregnation method for electric motor components using the impregnation plant, wherein the component is rotatable in both directions about a support device predefined axis, and tiltable respective to a predefined plane of such support device.