基于数值模拟的节能减排型热处理料盘结构轻量化设计

Lightweight Design of Heat Treatment Tray Structure for Energy Saving and Emission Reduction Based on Numerical Simulation

为降低大型航空模锻件热处理能耗和辅具应用成本,采用高温拉伸、数值模拟等方法对热处理料盘的选材和结构进行了优化设计,结果表明,相同工况下ZG35Cr24Ni7SiN的高温强度优于ZG40Ni35Cr26Si2,推荐使用。10 t载荷下,随着料盘厚度的减少,承受的等效应力增大,当使用叉车出炉时,40 mm的料盘厚度满足使用要求,当使用吊装出炉时,65 mm料盘厚度满足使用要求,Hon1蜂窝孔料盘在相同工况下,因最大等效应力低而优于Rec1矩形孔料盘结构。生产应用结果表明,优化后的料盘减重34.15%,寿命提升50%,平均能耗降低77.5 kWh,经济效益明显。

In order to reduce the heat treatment energy consumption of large aviation die forgings and the application cost of auxiliary tools,the material selection and structure of heat treatment material tray have been optimized by high temperature tensile and numerical simulation.The results show that the high temperature strength of ZG35Cr24Ni7SiN is better than that of ZG40Ni35Cr26Si2 under the same working conditions,and it is recommended to use.Under the load of 10 t,with the decrease of the thickness of the material plate,the equivalent stress increases.When the forklift is used,the thickness of the 40 mm material plate meets the requirements of use.When the hoisting is used for discharging,the thickness of the 65 mm material plate meets the requirements of use.Under the same working conditions,the Hon1 honeycomb hole material plate is superior to the Rec1 rectangular hole material plate structure due to the low maximum equivalent stress.The production application results show that the weight of the optimized material plate is reduced by 34.15%,the life is increased by 50%,the average energy consumption is reduced by 77.5 kWh,and the economic benefit is obvious.