控冷工艺对帘线钢盘条组织及性能的影响
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摘要
研究了不同控冷工艺对5.5 mm直径帘线钢盘条的微观组织及性能的影响。结果表明,将吐丝温度从860℃提高至900℃,且斯太尔摩线高温段冷速降低,可使热轧盘条横截面珠光体片层间距由161 nm减少至151 nm,抗拉强度和断面收缩率略有提高;同时氧化铁皮厚度由3μm提高至9.1μm,Fe_(1-y)O/Fe_3O_4的比值由1.89增加至3.18,除鳞性能得到改善。
The effects of different cooling control processes on the microstructure and properties of 准5.5 mm cord wire rod were studied. The results show that when the spinning temperature is raised from 860℃ to 900℃ and the cooling rate of the high temperature section of Styrmor line decreases, thepearlite interlamellar spacing of cross-section of hot rolled wire rod can be reduced from 161 nm to 151 nm, and the tensile strength and section shrinkage can be increased slightly. At the same time, the thickness of iron oxide increases from 3 μm to 9.1 μm, and the ratio of Fe1-yO/Fe3 O4 increases from 1.89 to 3.18. The descaling performance is improved.
The effects of different cooling control processes on the microstructure and properties of 准5.5 mm cord wire rod were studied. The results show that when the spinning temperature is raised from 860℃ to 900℃ and the cooling rate of the high temperature section of Styrmor line decreases, thepearlite interlamellar spacing of cross-section of hot rolled wire rod can be reduced from 161 nm to 151 nm, and the tensile strength and section shrinkage can be increased slightly. At the same time, the thickness of iron oxide increases from 3 μm to 9.1 μm, and the ratio of Fe1-yO/Fe3 O4 increases from 1.89 to 3.18. The descaling performance is improved.
引文
[1]刘振宇,王国栋.热轧钢材氧化铁皮控制技术的最新进展[J].鞍钢技术, 2011(2):1-2.
[2]王世芳,麻晗. Ca O-Mg O-SiO2-Al2O3类夹杂物塑性化对帘线钢加工断丝率的影响[J].特殊钢,2012,33(3):32-35.
[3]贾敏,刘靖,韩静涛.温度制度对帘线钢72A表面质量及微观组织的影响[J].材料热处理学报,2016,37(4):168-174.
[4]张熹,王春旭,史庆南.子午线轮胎钢帘线用钢丝的工艺现状[J].钢铁研究学报, 2007, 19(1):1-5.
[5]付松岳,任勇,程晓茹,等.高碳钢盘条三次氧化铁皮机械剥离性能[J].钢铁,2016,51(3):71-73.
[6] Bhattacharya R, Jha G, Kundu S, et al. Influence of cooling rate on the structure and formation of oxide scale in low carbon steel wire rods during hot rolling[J]. Surface&Coatings Technology, 2006,201(3):526-532.
[7] Kumar A, Mcculloch C, Hawbolt E B, et al. Modelling thermal and microstructural evolution on runout table of hot strip mill[J].Metal Science Journal, 2014, 7(4):360-368.
[8] Han K, Edmonds D V, Smith G D W. Optimization of mechanical properties of high-carbon pearlitic steels with Si and V additions[J]. Metallurgical and Materials Transactions A(Physical Metallurgy and Materials Science), 2001, 32(6):1313-1324.
[9]巩党国,方峰,蒋建清,等.高碳钢氧化皮的形成及其机械剥离性能[J].材料热处理学报,2009,30(5):167-171.
[10]戚正儒.高碳钢盘条氧化皮的组织与机械剥壳性能研究[D].南京:东南大学,2007.
[11] Tominaga J, Wakimoto K Y, Mori T, et al. Manufacture of wire rods with good descaling property[J]. Transactions of the Iron and Steel Institute of Japan, 1982, 22(8):646-656.
[2]王世芳,麻晗. Ca O-Mg O-SiO2-Al2O3类夹杂物塑性化对帘线钢加工断丝率的影响[J].特殊钢,2012,33(3):32-35.
[3]贾敏,刘靖,韩静涛.温度制度对帘线钢72A表面质量及微观组织的影响[J].材料热处理学报,2016,37(4):168-174.
[4]张熹,王春旭,史庆南.子午线轮胎钢帘线用钢丝的工艺现状[J].钢铁研究学报, 2007, 19(1):1-5.
[5]付松岳,任勇,程晓茹,等.高碳钢盘条三次氧化铁皮机械剥离性能[J].钢铁,2016,51(3):71-73.
[6] Bhattacharya R, Jha G, Kundu S, et al. Influence of cooling rate on the structure and formation of oxide scale in low carbon steel wire rods during hot rolling[J]. Surface&Coatings Technology, 2006,201(3):526-532.
[7] Kumar A, Mcculloch C, Hawbolt E B, et al. Modelling thermal and microstructural evolution on runout table of hot strip mill[J].Metal Science Journal, 2014, 7(4):360-368.
[8] Han K, Edmonds D V, Smith G D W. Optimization of mechanical properties of high-carbon pearlitic steels with Si and V additions[J]. Metallurgical and Materials Transactions A(Physical Metallurgy and Materials Science), 2001, 32(6):1313-1324.
[9]巩党国,方峰,蒋建清,等.高碳钢氧化皮的形成及其机械剥离性能[J].材料热处理学报,2009,30(5):167-171.
[10]戚正儒.高碳钢盘条氧化皮的组织与机械剥壳性能研究[D].南京:东南大学,2007.
[11] Tominaga J, Wakimoto K Y, Mori T, et al. Manufacture of wire rods with good descaling property[J]. Transactions of the Iron and Steel Institute of Japan, 1982, 22(8):646-656.