1. Technology Center, AVIC Shangda Super Alloys Co., Ltd., Xingtai 054800, Hebei, China 2. Hebei Engineering Research Center for Special Alloy Regeneration, AVIC Shangda Super Alloys Co., Ltd., Xingtai 054800, Hebei, China
Abstract：The production process of super duplex stainless steel S32760 is 20 t EAFAODLF30 cm mold casting. As the feature of the S32760 composition design is high Cr, low P, low S and ultra- low carbon, the peroxidative degree of steel is serious in the later period of smelting. In order to improve the purity of molten steel and reduce the oxygen mass fraction in steel, the Al- Si- Ca composite deoxidation was adopted, which effectively controlled the gas and inclusions in steel and improved the purity of molten steel. The sulfur and oxygen mass fraction in the finished steel were stably controlled less than 0.002% and 0.004%, respectively.
收稿日期: 2017-02-27
出版日期: 2017-09-07
通讯作者:
崔利民
E-mail: cuiliminde@126.com
引用本文:
崔利民 ，张欣杰 ，才丽娟 . 超级双相不锈钢生产工艺实践[J]. 中国冶金, 2017, 27(9): 44-47.
CUI Li- min，ZHANG Xin- jie，CAI Li- juan,. Process practice of super duplex stainless steel. China Metallurgy, 2017, 27(9): 44-47.
2017, Vol. 27 
