Transactions of Materials and Heat Treatment

Title：Analysis on failure causes and improvement measures for release agent spraying in aluminum alloy automatic forging production line under low temperature environment

Authors： Li Siqi Yuan Hongxia Bai Lu Shao Changbin Liang Peixin Chen Yujin Gao Bingkun Shi Yiqing

Unit： Beijing Research Institute of Mechanical & Electrical Technology Co. Ltd. CAM

KeyWords： aluminum alloy oil-based release agent viscosity spray flow rate viscosity-temperature characteristic

ClassificationCode：TG306

year,vol(issue):pagenumber：2023,48(11):29-34

Abstract：

In order to solve the problem that the amount of release agent spraying was too small or even impossible to spray under the low temperature environment for the aluminum alloy automatic forging production line, the causes for spraying failure were analyzed. Then, the structure principle of spray system for the aluminum alloy automatic forging production line was introduced, and the fluid mathematical model of release agent was established to analyze the influences of various parameters for the spray system on the spray flow rate. Furthermore, the kinematic viscosity of HYKOGEEN AL 2931 MBA release agent for aluminum alloy forging at different temperatures was measured by the experiment, and the viscosity-temperature equation was established. Finally, the relationship between release agent temperature and spray flow rate under the studied process conditions of the automatic forging production line was calculated, and it was revealed that the root cause of spraying failure was the increase in the kinematic viscosity of release agent caused by too low temperature. The measures to control the temperature of release agent to be above 20 ℃ and to improve the production line are put forward which achieve good results.

Funds：

作者简介：李思奇（1987-），男，硕士，工程师，E-mail：sikylee@163.com；通信作者：石一磬（1982-），男，学士，研究员，E-mail：shiyiqing1005@163.com

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