Because of the lack of an accurate mathematical model of oxide scale removal and process parameters in slurry blasting, the oxide scale of the Q235 hot rolled strip is taken as the research object in this article. According to the energy conservation principle, the kinetic energy change law of the mixed slurry of abrasive particles and water in the slurry blasting process during the impact was analyzed. The strain energy change law of the oxide scale on the surface of the matrix after the slurry blast was analyzed based on the strain energy theory, the mathematical model between the oxide scale removal amount and the slurry blasting process parameters was established, and the finite element ANSYS/ AUTODYN module and smooth particle hydrodynamics are used to simulate the process of oxide scale and matrix deformation during the slurry blasting process. Finally, the integrated descaling test platform is used to carry out the slurry descaling test. The results show that the oxide scale cracks and peels off when the oxide scale strain on the substrate surface is higher than the critical strain, the ratio of the influence of abrasive particle size on the increase rate of impact range to the impact velocity is 105.35%∶24.14%, the ratio of the influence of abrasive particle size on the increase rate of impact depth to the impact velocity is 233.67%∶5.86%, the maximum deviation rate between the finite element calculation and experimental results in the impact range is 8.71%, and the maximum deviation rate of impact depth is 8.55%. The finite element calculation results are consistent with the experimental results, and the model applicability is verified by the results of 304 stainless steel and 45 steel slurry descaling tests.
VOGESK, MUETHA R, LEHANEB,et al .Eco-pickled surface:an environmentally advantageous alternative to conventional acid pickling[J].Iron and Steel Technology,2008,5:81-96.
[2]
刘旭东. 磨料浆射流工艺参数对金属板材表面形貌的影响研究[D]. 太原:太原科技大学,2019.
[3]
LIUX D. Study on the influence of abrasive slurry jet process parameters on the surface morphology of metal sheets[D]. Taiyuan: Taiyuan University of Science and Technology,2019. (in Chinese)
GUOR, ZHOUC L, DUANJ J,et al .Study on ineterlayer and interface bonding strength of hot-rolled 304 stainless steel oxide scale[J].Journal of Plasticity Engineering,2023,30(3): 183-189.(in Chinese)
[6]
KOVACICI, BRENNANM J, WATERST P .A study of a nonlinear vibration isolator with a quasi-zero stiffness characteristic[J].Journal of Sound and Vibration, 2008, 315(3): 700-711.
[7]
王尚. 轧制带钢无酸除鳞的抛丸冲击工艺仿真与实验研究[D]. 北京:北京科技大学,2018.
[8]
WANGS. Simulation and experimental study on shot blasting impact process for acid free descaling of rolled strip steel [D]. Beijing: University of Science and Technology Beijing,2018. (in Chinese)
[9]
MODIO P, MONDALD P, PRASADB K,et al .Abrasive wear behaviour of a high carbon steel:effects of microstructure and experimental parameters and correlation with mechanical properties[J].Materials Science and Engineering :A, 2003, 343(1/2): 235-242.
[10]
HAMDIH, DURSAPTM, ZAHOUANIH .Characterization of abrasive grain’s behavior and wear mechanisms[J].Wear,2003,254(12): 1294-1298.
ZHOUX C. Research on fracture failure mechanismof oxide scale of Q235 hot rolled stripbased on acoustic emission [D]. Taiyuan: Taiyuan University of Science and Technology,2020. (in Chinese)
[13]
张校诚. Q235带钢表面氧化铁皮破裂机理及实验研究[D]. 太原:太原科技大学,2016.
[14]
ZHANGX C. The theoretical and experimental study of Q235 steel strip surface oxide scales fracture [D]. Taiyuan: Taiyuan University of Science and Technology,2016. (in Chinese)
[15]
卞大鹏. Q235氧化铁皮临界断裂应力研究[D]. 太原:太原科技大学,2013.
[16]
BIAND P. Study on the critical fracture stress of Q235 iron oxide scale[D]. Taiyuan: Taiyuan University of Science and Technology,2013. (in Chinese)
[17]
LIT Q, CHENX L, XUY H .Research into technology of Bao steel’s pickling tension leveler[J].Journal of Iron and Steel Research (International),1997,4(1):24-30.
[18]
NAGLM M, EVANSW T .The mechanical failure of oxide scales under tensile or compressive load[J].Journal of Materials Science,1993,28(23):6247-6260.
[19]
CHAUDHURIS K, ROLLSR .Fracture mechanisms in oxide scale on iron during substrate deformation[J].Journal of Materials Science,1977,12(11):2303-2309.
[20]
李诗卓. 材料的冲蚀与微动[M]. 北京:机械工业出版社,1987:336-340.
[21]
LIS Z. Erosion and fretting of materials[M]. Beijing: Machinery Industry Press,1987:336-340.(in Chinese)
[22]
刘增文 .硬脆材料冲蚀机理及前混合微细磨料水射流抛光技术研究[D].济南:山东大学,2011.
[23]
LIUZ W .Study on erosion mechanism of hard and brittle materials and polishing technology of premixed micro-abrasive water jet[D].Jinan:Shandong University,2011.(in Chinese)
[24]
朱洪涛 .精密磨料水射流加工硬脆材料冲蚀机理及抛光技术研究[D].济南: 山东大学,2007.
[25]
ZHUH T. Study on erosion mechanism and polishing technology of precision abrasive water jet machining hard and brittle materials[D]. Jinan: Shandong University,2007.(in Chinese)
[26]
LEH R, SUTCLIFFEM P F, WANGP Z,et al .Surface oxide fracture in cold aluminium rolling[J].Acta Materialia,2004, 52(4): 911-920.
[27]
PICQUÉB, BOUCHARDP O, MONTMITONNETP,et al .Mechanical behaviour of iron oxide scale:experimental and numerical study[J].Wear, 2006, 260(3): 231-242.
[28]
KRZYZANOWSKIM, RAINFORTHW M .Oxide scale modelling in hot rolling:assumptions,numerical techniques and examples of prediction[J].Ironmaking & Steelmaking,2010, 37(4):276-282.
[29]
ROBERTSONJ, MANNINGM I .Limits to adherence of oxide scales[J].Materials Science and Technology,1990,6(1):81-92.
CHENF G, GEW .A review of smoothed particle hydrodynamics family methods for multiphase flow[J].Chinese Journal of Theoretical and Applied Mechanics,2021,53(9):2357-2373.(in Chinese)
[32]
李治丹. 抛浆剥离金属表面氧化层的工艺研究[D]. 太原:太原科技大学,2019.
[33]
LIZ D. Study on the technology of removing oxide layer from metal surface by slurry blasting[D]. Taiyuan: Taiyuan University of Science and Technology,2019. (in Chinese)
[34]
XIEG L, YUX T, GAOZ F,et al .The modified Johnson-Cook strain-stress constitutive model according to the deformation behaviors of a Ni-W-Co-C alloy[J].Journal of Materials Research and Technology,2022,20:1020-1027.