预埋Monel管铸造铜水套的界面特征研究
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摘要
针对预埋Monel 400合金管的铸造铜水套,重点研究了不同Monel管外壁形貌(光滑管,螺纹管)在不同的浇注温度(1150、1200、1250℃)下的界面特征。结果表明:浇注温度和埋管形状显著影响预埋Monel400合金管铸造铜水套的界面冶金结合特性。随着浇注温度的升高,光滑管和螺纹管铸件界面层的平均厚度逐渐增加。浇注温度1150℃时,铸件界面层的显微硬度和剪切强度都明显低于浇注温度大于1200℃的铸件。在同一浇注温度下,光滑管铸件扩散层的厚度大于螺纹管铸件,界面处的显微硬度小于螺纹管铸件,但光滑管铸件的界面剪切强度与螺纹管铸件的界面剪切强度相当。
For the cast copper water jacket with pre-embedded Monel 400 alloy tube, the interfacial characteristics of different outer wall morphologies(smooth tube, threaded tube) of Monel tube at different pouring temperatures(1150, 1200 and1250℃) were mainly studied. The results show that the interfacial metallurgical bonding characteristics of the cast copper water jacket with pre-embedded Monel 400 alloy tube are significantly affected by pouring temperature and the shape of embedded tube. With the pouring temperature rising, the average thickness of the interface layer of the smooth tube and the threaded tube casting gradually increases. When the casting temperature is 1150 ℃, the micro-hardness and shear strength of the interfacial layer of the castings are obviously lower than those of the castings with casting temperature greater than 1200 ℃.At the same pouring temperature, the thickness of diffusion layer of smooth tube castings is bigger than that of threaded tube castings, and the micro-hardness at interface is smaller than that of threaded tube castings, but the interfacial shear strength of the smooth tube castings is equivalent to that of the threaded tube castings.
For the cast copper water jacket with pre-embedded Monel 400 alloy tube, the interfacial characteristics of different outer wall morphologies(smooth tube, threaded tube) of Monel tube at different pouring temperatures(1150, 1200 and1250℃) were mainly studied. The results show that the interfacial metallurgical bonding characteristics of the cast copper water jacket with pre-embedded Monel 400 alloy tube are significantly affected by pouring temperature and the shape of embedded tube. With the pouring temperature rising, the average thickness of the interface layer of the smooth tube and the threaded tube casting gradually increases. When the casting temperature is 1150 ℃, the micro-hardness and shear strength of the interfacial layer of the castings are obviously lower than those of the castings with casting temperature greater than 1200 ℃.At the same pouring temperature, the thickness of diffusion layer of smooth tube castings is bigger than that of threaded tube castings, and the micro-hardness at interface is smaller than that of threaded tube castings, but the interfacial shear strength of the smooth tube castings is equivalent to that of the threaded tube castings.
引文
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[9]王志刚,韦雯.高温炉窑用铜基合金冷却水套研究进展[J].有色冶金设计与研究,2012,33(2):12-14.
[10] Verscheure Kareel, Kyllo Andrew K, Filzwieser Andreas, et al.Furnace cooling technology in pyrometallurgical processes[J].JOM,2006,58(4):139-154.
[11] Tanaka Y, Kajihara M, Watanabe Y.Growth behaviour of compound layers during reactive diffusion between solid Cu and liquid Al[J].Mater.Sci.Eng.A,2007,445:355-363.
[12]周毅.埋管铸造铜水套组织与性能研究[D].广州:华南理工大学,2012.
[13] Pineau A, Benzerga A A, Pardoen T.Failure of metals I:brittle and ductile fracture[J].Acta Materialia,2016,107:424-483.
[2]李恺钦.蒙乃尔合金铸铜水套工业化实验关键技术研究[J].有色矿冶,2015(6):39-41.
[3] Choi S W, Kim D.On-line ultrasonic system for measuring thickness of the copper stave in the blast furnace[J].Review of Progress in Quantitative Nondestructive Evaluation,2012,A31:1715-1721.
[4] Yeh C P, Ho C K, Yang R J.Conjugate heat transfer analysis of copper staves and sensor bars in a blast furnace for various refractory lining thickness[J].International Communications in Heat&Mass Transfer,2012,39(1):58-65.
[5] Kong L F, Li Y, Lu Y J, et al.Stability and nonlinear dynamic behavior of drilling shaft system in copper stave deep hole drilling[J].Journal of Central South University of Technology,2009,16(3):451-457.
[6] Xiao Jun, Ning Shusen.Analysis of temperature,stress,and displacement distributions of staves for a blast furnace[J].Journal of Mineral Metallurgy Materials,2009,16(5):512-515.
[7] Xie N Q, Cheng S S.Xie N Q,et al.Analysis of effect of gas temperature on cooling stave of blast furnace[J].Iron Steel Res,2010,17(1):1-5.
[8] Robert G, Carmichael I.Application of copper staves for BF[J].Iron and Steel Engineer,1996(8):30-35.
[9]王志刚,韦雯.高温炉窑用铜基合金冷却水套研究进展[J].有色冶金设计与研究,2012,33(2):12-14.
[10] Verscheure Kareel, Kyllo Andrew K, Filzwieser Andreas, et al.Furnace cooling technology in pyrometallurgical processes[J].JOM,2006,58(4):139-154.
[11] Tanaka Y, Kajihara M, Watanabe Y.Growth behaviour of compound layers during reactive diffusion between solid Cu and liquid Al[J].Mater.Sci.Eng.A,2007,445:355-363.
[12]周毅.埋管铸造铜水套组织与性能研究[D].广州:华南理工大学,2012.
[13] Pineau A, Benzerga A A, Pardoen T.Failure of metals I:brittle and ductile fracture[J].Acta Materialia,2016,107:424-483.