公开(公告)号：US10126285B2

公开(公告)日：2018-11-13

申请号：US14416429

申请日：2012-12-28

Applicant: POSCO

Inventor： Sang Woo Han ,  Yong Jin Kim ,  Joong Kil Park ,  Sung Kwang Kim

IPC: G01N33/20 ,  B22D11/16 ,  B22D11/20

Abstract: Provided are an apparatus and method for predicting slab quality including a plurality of meniscus height detecting units prepared in a plurality of region on a top side of a mold receiving molten steel, and detecting a meniscus height of the molten steel, a meniscus flow detecting unit creating a meniscus flow pattern using meniscus heights at the plurality of regions, which are detected by the plurality of meniscus height detecting units, a data storage unit storing the meniscus flow pattern and quality data of a slab produced accordingly and a slab quality predicting unit extracting the meniscus flow pattern detected by the meniscus flow detecting unit and consequent slab quality from the data storage unit to predict slab quality.

公开(公告)号：US20150204837A1

公开(公告)日：2015-07-23

申请号：US14416429

申请日：2012-12-28

Applicant: POSCO

Inventor： Sang Woo Han ,  Yong Jin Kim ,  Joong Kil Park ,  Sung Kwang Kim

IPC: G01N33/20 ,  B22D11/16

CPC classification number: G01N33/206 ,  B22D11/16 ,  B22D11/201

Abstract: Provided are an apparatus and method for predicting slab quality including a plurality of meniscus height detecting units prepared in a plurality of region on a top side of a mold receiving molten steel, and detecting a meniscus height of the molten steel, a meniscus flow detecting unit creating a meniscus flow pattern using meniscus heights at the plurality of regions, which are detected by the plurality of meniscus height detecting units, a data storage unit storing the meniscus flow pattern and quality data of a slab produced accordingly and a slab quality predicting unit extracting the meniscus flow pattern detected by the meniscus flow detecting unit and consequent slab quality from the data storage unit to predict slab quality.

Abstract translation: 提供了一种用于预测板坯质量的装置和方法，包括在接收钢水的模具的上侧的多个区域中准备的多个弯月面高度检测单元，以及检测钢水的弯液面高度，弯液面流量检测单元 在由多个弯液面高度检测单元检测到的多个区域中使用弯液面高度形成弯液面流动图案，存储相应地生产的板坯的弯液面流动图案和质量数据的数据存储单元，以及板坯质量预测单元提取 由弯液面流量检测单元检测到的弯液面流动模式，并且从数据存储单元得到板坯质量以预测板坯质量。

公开(公告)号：US11203059B2

公开(公告)日：2021-12-21

申请号：US16630982

申请日：2018-07-12

Applicant: POSCO

Inventor： Hyun Jin Cho ,  Ju Han Choi ,  Sang Woo Han ,  Tae In Chung ,  Jang Hoon Kim

IPC: B22D11/117 ,  B22D11/118 ,  B22D1/00 ,  B22D41/00

Abstract: Provided is a molten material treatment apparatus including: a container having an upper portion, on which a molten material injection part is disposed, and a bottom part in which a hole is formed; a gas injection part attached to the bottom part between the molten material injection part and the hole; a chamber part formed on the upper portion of the container so as to face the gas injection part and having an inside open downward; and a plurality of vertical members disposed so as to cross a plurality of positions of a rotary flow region formed between the chamber part and the bottom part, wherein an inclusion removal efficiency can be improved while maintaining the molten material surface by a method in which a plurality of mutually different rotary flows are generated in a plurality of sections within the rotary flow region and are partially overlapped.

公开(公告)号：US10710152B2

公开(公告)日：2020-07-14

申请号：US15528199

申请日：2015-11-19

Applicant: POSCO

Inventor： Sang Woo Han ,  Seon Yong Jin ,  Hyun Jin Cho

IPC: B22D11/18 ,  B22D11/115 ,  B22D2/00

Abstract: Provided is a meniscus flow control device that includes: a meniscus flow detection unit for detecting, in a meniscus flow form of molten steel, relative temperature values for positions measured by temperature measurers, and relatively comparing the temperature values measured by the temperature measurers to thereby determine the flow state of the molten steel meniscus to be normal or abnormal; a magnetic field generation unit, installed outside a mold, for generating a magnetic field and controlling the flow of the molten steel by the magnetic field; and a flow control unit for maintaining the operation of the magnetic field generation unit in the current state when the meniscus flow state detected by the meniscus flow detection unit is determined to be normal, and for controlling the magnetic field generation unit to adjust the meniscus flow to be normal when the detected meniscus flow state is determined to be abnormal.