热轧带钢喷浆除鳞压力对基体冲蚀磨损行为的影响  

Influence of spouting descaling pressure on erosion wear behavior of substrate in hot rolled strip

作　　者：郭瑞[1,2] 周存龙[1] 柴泽琳[1] 温永威 齐浩 GUO Rui;ZHOU Cun-long;CHAI Ze-lin;WEN Yong-wei;QI Hao(School of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;School of Vehicle and Traffic Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)

机构地区：[1]太原科技大学机械工程学院,山西太原030024 [2]太原科技大学车辆与交通工程学院,山西太原030024

出　　处：《塑性工程学报》2022年第12期188-196,共9页Journal of Plasticity Engineering

基　　金：山西省重点研发计划(201903D421046);中央引导地方科技发展(20221070);山西省高等学校科技创新计划(2022L308)。

摘　　要：为解决热轧带钢高压喷浆除鳞对基体造成的冲蚀磨损问题,降低喷浆除鳞生产中的压力成本和磨料成本,提高带钢表面的除鳞均匀性,对Q235热轧带钢在10、12、14和16 MPa压力下进行了喷浆除鳞试验,采用k-ε湍流模型,基于固液两相流冲蚀理论建立了热轧带钢喷浆除鳞中基体冲蚀磨损的数值模拟模型,预测喷浆除鳞中带钢基体表面冲蚀磨损的几何形貌。结果表明,随着喷浆压力的增大,冲蚀长度、冲蚀宽度和冲蚀面积呈现逐步增长的趋势,而颗粒集中度峰值呈现逐步下降的趋势,最终冲蚀率和冲蚀率峰值在10~16 MPa范围内随压力增大表现为线性增长。To solve the problem of erosion and wear of substrate caused by high pressure spouting descaling of hot rolled strip steel,reduce the pressure cost and abrasive cost in spouting descaling production,and improve the descaling uniformity of the strip surface,the spouting descaling tests of Q235 hot rolled strip were carried out with pressures of 10,12,14 and 16 MPa.Using k-εturbulence model,based on the theory of solid-liquid two-phase flow erosion,the numerical simulation model of substrate erosion and wear in hot rolled strip spouting descaling was established to predict the geometric appearance of erosion wear on the surface of steel substrate during spouting descaling.The results show that with the increase of spouting pressure,the erosion length,erosion width and erosion area show a trend of gradual increase,while the peak value of particle concentration degree shows a gradual decrease trend,and the final erosion rate and peak erosion rate show a linear increase with the increase of pressure in the range of 10-16 MPa.

关 键 词：热轧带钢 喷浆除鳞 压力 表面形貌 冲蚀率 

分 类 号：TG731[金属学及工艺—刀具与模具]