Effect of Pouring Temperature and Carbon Equivalent on Shrinkage Defects of Hook Casting

Author of the article:QIAN Dongdong, CHENG Zhaohu, ZHOU Shaolei, HU Ping, ZHANG Jinyu

Author's Workplace：Hefei Casting and Forging Factory, Anhui Heli Co., Ltd., Hefei 230601, China

Key Words： shrinkage; pouring temperature; carbon equivalent; porosity

Abstract：MAGMA was used to simulate the tendency of shrinkage cavity of hooks castings under different carbon
equivalent and different pouring temperature, and the reason of porosity change caused by the change of carbon equivalent
and pouring temperature was analyzed. The actual production was verified according to the best pouring temperature and
carbon equivalent process parameters. The results show that with the increase of pouring temperature, the porosity firstly
decreases, then increases and then decreases, and the porosity is lower at 1 380 ℃ to 1 400 ℃. With the increase of carbon
equivalent, the porosity tends to decrease, and the carbon equivalent CE4.5%~4.7% is suitable, and there is no shrinkage
defects in hook casting.