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Patent
Korea Automotive Technology Institute | Date: 2014-06-04

Provided are an aluminum alloy including an iron-manganese complete solid solution and a method of manufacturing the same. According to an embodiment of the present invention, iron-manganese alloy powder is provided. The iron-manganese alloy powder is introduced into an aluminum melt. An aluminum alloy including an iron-manganese complete solid solution is manufactured by die casting the aluminum melt.


Patent
Korea Automotive Technology Institute | Date: 2012-12-21

Provided is an apparatus of manufacturing a seamless pipe. The apparatus includes a container receiving a work therein, a stem pressing one end of the work within the container, a die installed in a direction opposite to the stem, and having an extrusion hole comprised of a plurality of ports, a rotation member installed on a front end of the die, having a stirring tip inserted into a joint surface formed by abutting a plurality of metal pieces to each other on one surface, and rotating to perform a friction stir bonding in a state in which the one surface contacts the joint surface, and a correction mold including a metal pipe discharging path receiving a metal pipe manufactured by the friction stir bonding and discharging the metal pipe to an outside.


Patent
Korea Automotive Technology Institute | Date: 2015-09-30

The present invention provides an apparatus for controlling the temperature of a battery, which is capable of cooling a battery such as a lithium ion battery and the like by using the circulation of a liquid refrigerant and controlling the temperature of the battery through an endothermic reaction or an exothermic reaction caused by a phase transformation process of the corresponding supersaturated liquid refrigerant. To this end, the present invention comprises: at least one temperature sensor for sensing the temperature of a battery pack so as to generate a temperature detection signal; a refrigerant pipe which is extended between arrangement spaces of a plurality of battery cells included in the battery pack and circulates the supersaturated liquid refrigerant through the inside thereof; a refrigerant circulation driving unit which drives a cooling operation by circulating the supersaturated liquid refrigerant through the refrigerant pipe when the temperature of the battery pack rises; and a control unit for driving and controlling the refrigerant circulation driving unit when the rise in the temperature of the battery pack is detected according to a temperature detection signal received from at least one temperature sensor.


Provided are an aluminum alloy including an iron-manganese complete solid solution and a method of manufacturing the same. According to an embodiment of the present invention, iron-manganese alloy powder is provided. The iron-manganese alloy powder is introduced into an aluminum melt. An aluminum alloy including an iron-manganese complete solid solution is manufactured by die casting the aluminum melt.


Patent
Korea Automotive Technology Institute | Date: 2014-10-29

Provided is an apparatus of manufacturing a seamless pipe. The apparatus includes a container receiving a work therein, a stem pressing one end of the work within the container, a die installed in a direction opposite to the stem, and having an extrusion hole comprised of a plurality of ports, a rotation member installed on a front end of the die, having a stirring tip inserted into a joint surface formed by abutting a plurality of metal pieces to each other on one surface, and rotating to perform a friction stir bonding in a state in which the one surface contacts the joint surface, and a correction mold including a metal pipe discharging path receiving a metal pipe manufactured by the friction stir bonding and discharging the metal pipe to an outside.


Patent
Korea Automotive Technology Institute | Date: 2013-10-02

Provided are an extruded aluminum (Al)-magnesium (Mg) material and a method of producing the same. An Al-Mg master alloy having a first Mg content is provided. An Al-Mg alloy having a second Mg content less than the first Mg content is prepared by adding the Al-Mg master alloy into molten Al and then casting the molten Al. An extruded Al-Mg material is prepared by extruding the Al-Mg alloy.


The present invention relates to an extrusion-type connecting rod which is installed between a piston and a crank and can convert the reciprocating motion of the piston into the rotary motion of a crank shaft, an extrusion apparatus for a connecting rod, and a manufacturing method for the extrusion-type connecting rod. The extrusion-type connecting rod may comprise: a first big end having a portion of a crank shaft hole formed on one side and having a seam-line divided surface, which comprises a seam line formed at the time of extrusion, formed on the other side; a second big end, being extrusion-molded simultaneously with the first big end, having the other portion of the crank shaft hole formed on one side, and having a seam-line divided surface, which comprises a seam line formed at the time of extrusion, formed so as to contact the seam-line divided surface of the first big end; a connection part which is extrusion-molded integrally with the second big end; and a small end which is extrusion-molded integrally with the connection part.


The present invention relates to an extrusion-type connecting rod which is installed between a piston and a crank and can convert the reciprocating motion of the piston into the rotary motion of a crank shaft, an extrusion apparatus for a connecting rod, and a manufacturing method for the extrusion-type connecting rod. The extrusion-type connecting rod may comprise: a first big end having a portion of a crank shaft hole formed on one side and having a seam-line divided surface, which comprises a seam line formed at the time of extrusion, formed on the other side; a second big end, being extrusion-molded simultaneously with the first big end, having the other portion of the crank shaft hole formed on one side, and having a seam-line divided surface, which comprises a seam line formed at the time of extrusion, formed so as to contact the seam-line divided surface of the first big end; a connection part which is extrusion-molded integrally with the second big end; and a small end which is extrusion-molded integrally with the connection part.


Patent
Korea Automotive Technology Institute | Date: 2013-11-05

The present invention provides an apparatus for controlling the temperature of a battery, which is capable of cooling a battery such as a lithium ion battery and the like by using the circulation of a liquid refrigerant and controlling the temperature of the battery through an endothermic reaction or an exothermic reaction caused by a phase transformation process of the corresponding supersaturated liquid refrigerant. To this end, the present invention comprises: at least one temperature sensor for sensing the temperature of a battery pack so as to generate a temperature detection signal; a refrigerant pipe which is extended between arrangement spaces of a plurality of battery cells included in the battery pack and circulates the supersaturated liquid refrigerant through the inside thereof; a refrigerant circulation driving unit which drives a cooling operation by circulating the supersaturated liquid refrigerant through the refrigerant pipe when the temperature of the battery pack rises; and a control unit for driving and controlling the refrigerant circulation driving unit when the rise in the temperature of the battery pack is detected according to a temperature detection signal received from at least one temperature sensor.


Patent
Korea Automotive Technology Institute | Date: 2011-11-21

Provided are an extruded aluminum (Al)-magnesium (Mg) material and a method of producing the same. An AlMg master alloy having a first Mg content is provided. An AlMg alloy having a second Mg content less than the first Mg content is prepared by adding the AlMg master alloy into molten Al and then casting the molten Al. An extruded AlMg material is prepared by extruding the AlMg alloy.

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