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Tangjin, South Korea

Patent
Hyundai Hysco Co. and Hyundai Steel Company | Date: 2013-05-15

Disclosed are a hot stamping part with enhanced toughness and a method for manufacturing the same, in which the hot stamping part has a tensile strength (TS) of 700-1,200 MPa after hot stamping while guaranteeing elongation (EL) of 12% or more by adjusting alloy components and controlling process conditions.


Patent
Hyundai Steel Company | Date: 2013-11-13

An apparatus for measuring the shape of a material includes: a width roller configured to roll a width of the material; a plurality of transfer rollers arranged in a rear side of the width roller to transfer the width rolled material; and a measurement unit disposed between the transfer rollers to contact the material moved over the transfer rollers to measure the shape of the material.


Patent
Hyundai Steel Company | Date: 2013-10-28

A steam-blocking apparatus includes: a rolling mill configured to roll a material; a transfer roller disposed at a rear side of the rolling mill and configured to transfer the material from the rolling mill; a descaler disposed above the transfer roller and configured to spray wash water toward the transfer roller; a width-measuring part disposed at a rear side of the descaler and configured to measure the width of the material; and a shield disposed between the descaler and the width-measuring part and configured to prevent steam, generated from evaporation of the wash water, from being introduced into the width-measuring part.


Patent
Hyundai Steel Company | Date: 2014-01-29

Disclosed are a steel sheet having excellent and a method for producing the same. The disclosed steel sheet comprises, by weight, 0.005-0.06% carbon (C), 0.2% or less silicon (Si), 1.0-2.0% manganese (Mn), 0.01% or less sulfur (S), 0.2-2.0% aluminum (Al), one or more of chromium (Cr) and molybdenum (Mo) in an amount satisfying 0.3[Cr wt %]+0.3[Mo wt %]2.0, and 0.008% or less nitrogen (N), with the remainder being iron (Fe) and inevitable impurities, wherein the density of dislocations in the ferrite matrix of the steel sheet is 110


Patent
Hyundai Steel Company and Inha Industry Partnership Institute | Date: 2014-07-29

Disclosed herein is a method of reducing slag, including the steps of: examining the components of slag to be reduced, and setting a target composition ratio after reduction; determining the mixing ratio and input amount of a complex reducing agent of a plurality of reducing agents in accordance with the set target composition ratio to determine the complex reducing agent; and supplying the complex reducing agent into molten slag to reduce the slag. The method is advantageous in that the reduction efficiency of slag can be maximized, various kinds of reducing agents can be efficiently used, and the recovery amount of valuable metals can be increased, thus reducing cost.

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