Dynamic spray cooling control model based on the tracking of velocity and superheat for the continuous casting steel

被引：23

作者：

Zhang, Jian ^{[1
,2
,3
]}

Chen, Deng-Fu ^{[1
]}

Zhang, Cheng-Qian ^{[4
]}

Wang, Shui-Gen ^{[1
]}

Hwang, Weng-Sing ^{[2
,3
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400030, Peoples R China

[2] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 701, Taiwan

[3] Natl Cheng Kung Univ, Res Ctr Energy Technol & Strategy, Tainan 701, Taiwan

[4] Tianjin Univ, Sch Elect Informat Engn, Tianjin 300072, Peoples R China

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2016年 / 229卷

基金：

中国国家自然科学基金;

关键词：

Continuous casting; Secondary cooling; Dynamic control; Casting speed; Superheat; CONTROL-SYSTEM; TEMPERATURE; SIMULATION;

D O I：

10.1016/j.jmatprotec.2015.10.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An open-loop dynamic spray cooling control strategy is explained in details. The strand was divided into many slices of a certain length and the midpoint of each cooling zone was set as a control point. The casting speed and temperature of each slice were tracked by using a control algorithm. Compared with the steady-state control model, the maximum temperature fluctuation values of cooling zone I-IV dropped from 70 degrees C, 61 degrees C, 51 degrees C and 35 degrees C to 17 degrees C, 16 degrees C, 12 degrees C and 10 degrees C, respectively, when using the dynamic control strategy in theoretical case. This dynamic control strategy has been applied to an actual billet continuous casting machine. The results of field trials showed that the surface temperature of the billets was well stabilized at the target temperature, and the number of strand defects, such as mid-way cracks, was reduced significantly. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：651 / 658

页数：8

共 18 条

[1]

BRIMACOMBE JK, 1976, CAN METALL QUART, V15, P163, DOI 10.1179/000844376795050796

[2] Design and implementation of an automated secondary cooling system for the continuous casting of billets [J].

Chaudhuri, Subhasis ;

Singh, Rajeev Kumar ;

Patwari, Kuntal ;

Majumdar, Susanta ;

Ray, Asim Kumar ;

Singh, Arun Kumar Prasad ;

Neogi, Nirbhar .

ISA TRANSACTIONS, 2010, 49 (01) :121-129

[3] Evolution of Control Models for Secondary Cooling in Continuous Casting Process of Steel [J].

Dou, Zhichao ;

Liu, Qing ;

Wang, Bao ;

Zhang, Xiaofeng ;

Zhang, Jianfeng ;

Hu, Zhigang .

STEEL RESEARCH INTERNATIONAL, 2011, 82 (10) :1220-1227

[4]

Gilles H.L., 2003, MAKING SHAPING TREAT, V11th

[5] A transient simulation and dynamic spray cooling control model for continuous steel casting [J].

Hardin, RA ;

Liu, K ;

Kapoor, A ;

Beckermann, C .

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2003, 34 (03) :297-306

[6]

INAZAKI K, 1984, T IRON STEEL I JPN, V24, P75

[7]

Jiang G., 1993, C CONT CAST STEEL DE, P567

[8] Novel online temperature control system with closed feedback loop for steel continuous casting [J].

Long, M. J. ;

Chen, D. F. ;

Zhang, J. ;

Ouyang, Q. .

IRONMAKING & STEELMAKING, 2011, 38 (08) :620-629

[9] REAL-TIME SIMULATION OF HEAT-TRANSFER IN CONTINUOUS-CASTING [J].

LOUHENKILPI, S ;

LAITINEN, E ;

NIEMINEN, R .

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1993, 24 (04) :685-693

[10]

Morwald K, 1998, IRONMAK STEELMAK, V25, P323

← 1 2 →