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| Analysis of Broken Reasons for Wire of Big-Size and High Strengh SWRH82B During Drawed Process |
| KONG Xiang-tao1,ZHOU De1,CHEN Hong2,ZHANG Bao-quan2,WANG Li-feng1 |
1. Shougang Research Institute of Technology, Beijing 100043, China
2. Shougang No.2 Steel Making Plant, Beijing 100043, China |
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Abstract Shougang’s big-size and high strength SWRH82B was broken during drawed process, which had relation with broken corner, subcutaneous crack of billet and wire of micro-section cellular structure. The intensity of cooling was improved for mold and secondary cooling by seasonal temperature. The product quality can meet requirements of bloom through adjusting cooling water of mold, regulating the secondary cooling water distribution, changing suitable characteristic mold powder, adopting catch carbon of finish point with micro-nitrogen carburant in converter.
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Received: 07 March 2011
Published: 20 February 2012
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2012, Vol. 47 
