LIU Guoyong1 ， SONG Ming1 ， ZHANG Yingna2 ， CAI Ayun3 ， KONG Ning1 ， ZHU Dongmei1 ， ZHANG Shaojun1
（1. School of Mechanical Engineering， University of Science and Technology Beijing， Beijing 100083， China； 2. China Petroleum Engineering & Construction Corp， Beijing 100101， China； 3. Beijing Shougang Cold Rolling Co. Ltd.， Beijing 101304， China）
Abstract：The effects of different factors on the rheological properties of abrasive suspension were experimentally conducted by measuring the rheological parameter of abrasive suspension, which polyacrylamide (PAM) , garnet and steel grit were selected as additive and abrasive respectively in the field of descaling of abrasive suspension jet. The results show that, abrasive concentration and abrasive grit have little influence on the viscosity of suspension. The garnet and steel grit, abrasive slurry viscosity change curves have almost the same rule which the viscosity decreases with the shearing rate increasing. The measured data were fitted using power-law model, Bingham model and Herschel-Bulkley model. It is found that Herschel-Bulkley model is more accurate to describe rheological properties of two kinds of abrasive slurry. Based on Herschel-Bulkley model, the constitutive equations are established and rheological law is obtained.
Keywords： abrasive suspension; polyacrylamide; rheological property; constitutive equation
文章编号：1008-5548（2018）02-0026-06
DOI：10.13732/j.issn.1008-5548.2018.02.005
收稿日期：2017-07-20， 修回日期：2018-01-21，在线出版时间：2018-03-28。
基金项目：国家自然科学基金项目，编号 ：51605026；中央高校基本科研业务费专项资金资助项目，编号：FRF-TP-15-082A1。
第一作者简介：刘国勇（1969—），男，博士，副教授，硕士生导师，研究方向为金属材料控冷强韧化。E-mail：gy_liu666@ustb.edu.cn。
通信作者简介：宋鸣（1993—），男，硕士研究生，研究方向为金属材料控冷强韧化。E-mail：ustb_songm@163.com。
