摘要
轧制温度、压下率、轧制速度以及辊径等变量是金属热轧开坯过程中控制鳄鱼嘴现象的重要工艺参数。借助Deform-3D模拟5052铝合金热轧开坯过程中的鳄鱼嘴现象,通过点追踪与正交试验相结合的方法得出影响鳄鱼嘴现象的首要因素。结果表明,在金属热轧开坯过程中影响鳄鱼嘴产生的首要因素为压下率,其次为轧辊直径和轧制温度,轧辊转速对鳄鱼嘴长度的影响最小。其次,在单道次轧制模拟过程中,当轧辊直径为450mm,压下率为20%,轧制温度为540℃,轧辊转速为5r/min时,产生的鳄鱼嘴长度最短。
Effective control of the rolling process parameters include tempterature,reduction ratio,roller rotation speed and roller diameter is important for controlling crocodile mouth phenomenon in the hot rolling cogging process.The Deform-3D software was used to simulate the alligator phenomenon during the 5052 Aluminum hot rolling and cogging process.Through the combination with the point track and orthogonal experiment method,the primary factors influencing the alligator phenomenon were obtained.The experimental results reveal that the main factor affecting alligator phenomenon is the reduction ratio,followed by the roller diameter and rolling temperature,and then the roller rotation speed.In the single pass rolling-simulation process,alligator length is controlled shortest when roller diameter is 450 mm,and the reduction ratio（e）is 20%,rolling tempter is 540℃ as well as roller rotation speed of 5 r/min.
作者
王金辉
贺丽萍
杨彩云
金培鹏
Wang Jinhui;He Liping;Yang Caiyun;Jin Peipeng(Qinghai Provincial Key Laboratory of New Light Alloys,Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming,Qinghai Universit)
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2018年第11期1261-1264,共4页
Special Casting & Nonferrous Alloys
基金
青海省新型轻合金重点实验室资助项目(2017-ZJ-Y17)
关键词
5052铝合金
热轧开坯
鳄鱼嘴
数值模拟
5052 Aluminum Alloy
Hot Rolling Cogging
Alligator
Numerical Simulation
