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Patent
Korea Institute of Machinery and Materials | Date: 2017-02-15

The present invention provides a plasma nozzle atomizing and pyrolyzing a liquid supplied by generating plasma therein to be mixed and sprayed with a gas with a fast speed by heat due to a plasma arc and flow excited chemical species. The plasma nozzle according to an exemplary embodiment of the present invention includes: a first housing discharging a supplied gas to a narrowed discharging port and being electrically grounded; a second housing provided near the discharging port of the first housing and spraying a liquid supplied through a spraying hole in the discharging port; and a driving electrode built in the first housing, forming a discharge gap along with the discharging port at an end part, and applied with a driving voltage.


Patent
Korea Institute of Machinery and Materials | Date: 2017-01-06

There is provided an electrostatic precipitation device of explosive exhaust gas particles that can remove by unipolar charging a particulate material such as SiO_(2 )that is included in an explosive exhaust gas by charging the explosive exhaust gas with an indirect charging method of charging through ions that are injected from the outside.


Patent
Korea Institute of Machinery and Materials | Date: 2017-03-22

The present invention relates to a linear expander that can structurally offset vibration and noise caused from piston movement by moving pistons combined to two linear generators symmetrically provided in a body portion where a suction valve and a discharge valve are respectively provided to bilaterally opposite directions, and accordingly the expander has a simple structure and motion stability of the compressor can be improved.


Patent
Korea Institute of Machinery and Materials | Date: 2017-03-22

A method of manufacturing a wire grid polarizer includes: preparing a stamp having a nanostructure body at one surface and forming a mask layer with anisotropic vapor deposition at the one surface; forming a metal film on a substrate; transferring a mask layer of an upper portion of a nanostructure body in the mask layer onto the metal film; and patterning the metal film into metal lines by removing a portion that is not covered with the mask layer in the metal film with dry etching.


Patent
Korea Institute of Machinery and Materials | Date: 2015-11-30

A detachable device of a loading unit for a robot, detachably combining the loading unit to a connection unit of the robot, includes: a first magnet unit provided in the loading unit and having a first magnet pattern; a second magnet unit provided in the connection unit, having a second magnet pattern including a pattern that corresponds to the first magnet pattern, and combined with the first magnet unit by a magnetic force generated by power applied thereto; a pattern recognition unit recognizing an object held by the loading unit and one of the first magnet pattern and the pattern corresponding to the first magnet pattern; and a matching control unit controlling power applied to the second magnet unit to apply magnetic attraction force to the first magnet pattern from a part of the second magnet pattern according to operation of the pattern recognition unit.


Patent
Korea Institute of Machinery and Materials | Date: 2015-12-04

A method of manufacturing a wire grid polarizer includes: preparing a stamp having a nanostructure body at one surface and forming a mask layer with anisotropic vapor deposition at the one surface; forming a metal film on a substrate; transferring a mask layer of an upper portion of a nanostructure body in the mask layer onto the metal film; and patterning the metal film into metal lines by removing a portion that is not covered with the mask layer in the metal film with dry etching.


Patent
Korea Institute of Machinery and Materials | Date: 2015-08-31

An apparatus for processing the surface of a workpiece includes: a first rotating body connected to a first rotating shaft and including a first protruding portion connected to a part of the outer circumference thereof; a second rotating body connected to a second rotating shaft and including a second protruding portion connected to a part of the outer circumference thereof; and a third rotating body connected to a third rotating shaft and including a third protruding portion connected to a part of the outer circumference thereof, wherein the first to third rotating shafts are in the same plane, a first angle between the first and second rotating shafts, a second angle between the first and third rotating shafts, and a third angle between the second and third rotating shafts are identical, outer circumferences of the first to third rotating shafts adjacent to one another form a pathway through which a workpiece can pass, and the size of the pathway is adjusted by moving the first rotating body.


Patent
Korea Institute of Machinery and Materials | Date: 2016-11-29

A method of manufacturing a silicon carbide (SiC) sintered body and a SiC sintered body obtained by the method are provided. The method includes: preparing a composite powder by subjecting a SiC raw material and a sintering aid raw material to mechanical alloying; and sintering the composite powder, wherein the sintering aid is at least one selected from the group consisting of an AlC-based material, an AlBC-based material, and a BC-based material. Accordingly, a SiC sintered body that can be sintered at low temperature, can be densified, and has high strength and high electrical conductivity can be prepared.


Patent
Korea Institute of Machinery and Materials | Date: 2016-05-13

The present disclosure related to a thin metal film substrate and a method for preparing the same and more particularly, to a thin metal film substrate including a substrate; and a thin metal film comprising Ag or an Ag alloy formed on the substrate, wherein the thin metal film is formed to have preferred orientation corresponding to the preferred orientation of the substrate during the initial growth. The thin metal film substrate according to an example grows in a 2D continuous thin film from the initial growth to provide excellent light transmittance and conductivity.


Patent
Korea Institute of Machinery and Materials | Date: 2016-06-30

A device for lubrication and noise attenuation of a gear box for driving a hydraulic pressure pump of an extra-large sized excavator according to an exemplary embodiment of the present invention includes: a case housing where a lubricant is provided in the bottom side thereof; a driving gear provided in the case housing and rotating by a driving torque of an engine; first and second driven gears engaged to lateral sides of the driving gear and rotating in the case housing; and a third driven gear engaged to an upper side of the driving gear and rotating, wherein the case housing may include a lubrication plate provided in an inclined manner from an upper side of the first driven gear to one side of the third driven gear such that the lubricant drawn up by rotation torque of the first driven gear is churned to an inner surface of the lubrication plate and then dropped at the upper side of the first driven gear and one side of the third driven gear for lubrication.

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