添加含铁碳酸盐水基轧制润滑液的摩润性能
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摘要
为了满足钢铁企业节能环保的生产要求,选择含铁碳酸盐作为冷却润滑介质,添加分散剂、极压抗磨剂、增粘剂等制备稳定分散的水基轧制润滑液。通过正交试验,确定了含铁碳酸盐在水基中的最佳分散条件:超声震荡12 min、pH=8、分散剂浓度10%;通过四球摩擦磨损试验对添加含铁碳酸盐水基轧制润滑液的摩擦学性能进行研究,结果表明:含铁碳酸盐的添加显著提升了水基轧制润滑液的极压抗磨、减摩性能,使其在高载荷、高转速条件下仍具有优异的抗磨减摩性能;通过热轧试验对水基轧制润滑液的轧制润滑性能进行研究,结果表明:使用添加0.6%的含铁碳酸盐水基轧制润滑液轧制时,第一道次、第二道次轧制力分别下降11%和27%,提高了轧件氧化层致密性,使空洞、裂纹等缺陷减少,轧后表面质量得到改善。
In order to meet production requirements for energy saving and environmental protection in steel industry,a stably dispersive water-based rolling lubricant was fabricated by selecting iron carbonate as the cooling and lubricating medium with addition of dispersant,extreme pressure anti-wear agent and tackifier,etc.Orthogonal experiments were carried out to determine optimal dispersion conditions of iron carbonate in the water base,which were found to be ultrasonic oscillation of 12 minutes,pH=8 and dispersant concentration of10%. Through performing four-ball friction and wear tests,the tribological properties of the lubricating liquid containing iron carbonate were studied with results showing that the extreme pressure anti-wear and anti-friction performance of the water-based rolling lubricant was remarkably improved,enabling the lubricant to possess excellent anti-wear and anti-friction performance under the conditions of high loads and high speeds.Moreover,the performance of the water-based rolling lubricant was also investigated in hot rolling trials. The results indicated that adding 0.6% of iron carbonate in the water-based rolling lubricant reduces the first pass and the second pass rolling forces by 11% and 27%,respectively,and increases the density of the oxide layer leading to reduced defects such as cavities and cracks and thus improved surface quality of the products after rolling.
In order to meet production requirements for energy saving and environmental protection in steel industry,a stably dispersive water-based rolling lubricant was fabricated by selecting iron carbonate as the cooling and lubricating medium with addition of dispersant,extreme pressure anti-wear agent and tackifier,etc.Orthogonal experiments were carried out to determine optimal dispersion conditions of iron carbonate in the water base,which were found to be ultrasonic oscillation of 12 minutes,pH=8 and dispersant concentration of10%. Through performing four-ball friction and wear tests,the tribological properties of the lubricating liquid containing iron carbonate were studied with results showing that the extreme pressure anti-wear and anti-friction performance of the water-based rolling lubricant was remarkably improved,enabling the lubricant to possess excellent anti-wear and anti-friction performance under the conditions of high loads and high speeds.Moreover,the performance of the water-based rolling lubricant was also investigated in hot rolling trials. The results indicated that adding 0.6% of iron carbonate in the water-based rolling lubricant reduces the first pass and the second pass rolling forces by 11% and 27%,respectively,and increases the density of the oxide layer leading to reduced defects such as cavities and cracks and thus improved surface quality of the products after rolling.
引文
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[21]马剑奇,王晓波,付兴国,等.油溶性Cu纳米微粒作为15W/40柴油机油添加剂的摩擦学性能研究[J].摩擦学学报,2004,24(2):134-138.
[22]王琼杰,徐玉福,胡献国,等.生物质燃油摩擦磨损特性试验分析[J].农业工程学报,2008,24(9):188-192.
[23]张泽抚,刘维民.含氮有机物修饰的纳米三氟化镧的摩擦学性能研究[J].摩擦学学报,2000,20(3):217-219.
[2]王国栋.中国钢铁轧制技术的进步与发展趋势[J].钢铁,2014,49(7):23-29.
[3]SUN J L,MA Y L.Development and application of lubrication technology for rolling process[J].Special Steel,2007,28(3):47-49.
[4]SHAO J,HE A,YANG Q,et al.Work roll wear prediction model taking in account lubrication in hot rolling[J].China Mechanical Engineering,2009,20(3):361-364.
[5]AZUSHIMA A,XUE W D,YOSHIDA Y.Lubrication mechanism in hot rolling by newly developed simulation testing machine[J].CIRP Annals-Manufacturing Technology,2007,56(1):297-300.
[6]ALEXANDER H R,LAURENS M H,ANDREAS S JB.Metal processing lubricant composition:WO2008056981 A3[P].2008.
[7]吴迪,王国栋.热轧润滑机理及其出现和应用的背景热轧润滑技术讲座(一)[J].轧钢,2001,18(4):50-52.
[8]马艳丽,孙建林,高雅,等.板带钢热轧润滑作用机理及润滑效果[J].北京科技大学学报,2011,33(2):178-181.
[9]刘喜梅,罗新民.水基润滑添加剂的理论及应用[J].合成润滑材料,2001,28(1):9-13.
[10]ZHANG J,WANG C B,GENG Z Y,et al.Effects of several additives on the properties of water-based lubricants[J].China Surface Engineering,2007,20(3):26-29.
[11]BARTZ W J.Ecotribology:environmentally acceptable tribological practices[J].Tribology International,2006,39(8):728-733.
[12]CAO Y,YU L.Effects of tribenyl phosphate and dibutyl phosphite as additives on the tribological behaviors of rape seed oil[J].Tribology,2000,20(2):119-122.
[13]CHEN H,BAN T,ISHIDA M,et al.Adhesion between rail/wheel under water lubricated contact[J].Wear,2002,253(1):75-81.
[14]HAVET L,BLOUET J,VALLOIRE F R,et al.Tribological characteristics of some environmentally friendly lubricants[J].Wear,2001,248(1-2):140-146.
[15]GAO Y,JING Y,ZHANG Z,et al.Tribological properties of aqueous solution of imidazoline borates[J].Wear,2002,253(5-6):576-578.
[16]YANG G B,CHAI S T,XIONG X J,et al.Preparation and tribological properties of surface modified Cu nanoparticles[J].Transactions of Nonferrous Metals Society of China,2012,22(2):366-372.
[17]WEN Y,WANG C B,TIAN B,et al.Effect of ceramic additive in lubricating oil on contact fatigue and wear performance of steel/steel friction pair[J].Transactions of Materials&Heat Treatment,2006,27(6):118-123.
[18]李茂生.水溶性聚醚在金属加工液中的应用[J].合成润滑材料,2003,30(4):8-10.
[19]刘俊铭,张晨辉,张朝辉,等.蓖麻油聚氧乙烯醚水基润滑液摩擦学特性研究[J].摩擦学学报,2011,31(3):240-248.
[20]李磊,顾卓明,顾彩香,等.纳米颗粒作为润滑添加剂的性能研究[J].当代化工,2007,36(3):268-271.
[21]马剑奇,王晓波,付兴国,等.油溶性Cu纳米微粒作为15W/40柴油机油添加剂的摩擦学性能研究[J].摩擦学学报,2004,24(2):134-138.
[22]王琼杰,徐玉福,胡献国,等.生物质燃油摩擦磨损特性试验分析[J].农业工程学报,2008,24(9):188-192.
[23]张泽抚,刘维民.含氮有机物修饰的纳米三氟化镧的摩擦学性能研究[J].摩擦学学报,2000,20(3):217-219.