金属合金半固态坯料降温保温加热新工艺

New Heating Technology of Reducing Temperature Plus Preservation for Semi-solid Alloy Billet

提出了降温保温新的加热工艺,与传统的恒温保温加热工艺比较,降温保温加热工艺既有利于缩短加热时间,又有利于坯料加热温度场更加均匀。对ZL101半固态合金坯料进行了降温保温和恒温保温加热实验,将试件加热到560℃,最大温差为0.2℃,实验结果为降温保温工艺只需要149min,恒温保温工艺需要179min。同时,对其加热过程进行了有限元模拟,模拟结果为降温保温工艺只需要的时间为156.7min;而恒温保温工艺需要的时间为173.3min。实验结果与模拟结果具有较好地吻合。

The new heating technology of reducing temperature plus preservation was put forward. Compared with the traditional heating technology of isothermal plus preservation, the advantages of new technology are to shorten the heating time, and to make the billet heating temperature more uniformity. The simulation of the heating billet of ZL101 semi-solid aluminum alloy was carried out by finite element method, and some experiment investigation was also carried out. Heating billet to 560℃ with 0.2℃ maximum temperature difference in the billet, the.experiment results show that the new technology takes 149min, the traditional technology is 179min. The finite element simulation results show that the new technology takes 156.7 min, the traditional technology is 173.3 rain. The experimental results are identical to the finite element simulation results.