Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第24卷    第6期    总第183期    2014年6月

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文章编号:1004-0609(2014)06-1578-07
柱塞式环模成型模具摩擦热数值分析
德雪红1, 2,俞国胜1,翟晓敏3

(1. 北京林业大学 工学院,北京 100083;
2. 内蒙古农业大学 机电工程学院,呼和浩特 010018;
3. 航天科工集团第六研究所,呼和浩特 010076
)

摘 要: 为研究柱塞啮合式生物质环模成型机摩擦特性,利用传热学原理及柱塞环模冷压成型特点,以42CrMo钢为凹模材料,建立成型机凹模摩擦热分析数学模型,并借助Solidworks及ANSYS软件对物料成型过程中凹模摩擦热进行温度场数值模拟试验及数据对比分析。结果表明:凹模温度随工作时间增加呈上升趋势,其耐磨衬套及保型筒内、外壁及凹模体外壁温度增加速度不同;凹模温度增速随凸模转速变化而变化,其内壁温度在凸模转速达240r/min时达最佳生物质物料木质素软化状态;通过调整模具材料、物料、生产率等相关因素,可有效缩短物料木质素达软化温度时间,提高物料成型质量。

 

关键字: 柱塞式;生物质;成型;摩擦热;ANSYS软件

Numerical analysis of friction heat of plunger biomass ring briquetting mold
DE Xue-hong1, 2, YU Guo-sheng1, ZHAI Xiao-min3

1. College of Mechanical Engineering, Beijing Forestry University, Beijing 100083, China;
2. College of Mechanical and Electrical Engineering,Inner Mongolia Agricultural University, Hohhot 010018, China;
3. Sixth Research Institute, Aerospace Science and Industry Group of China, Hohhot 010076, China

Abstract:Heat transfer theory and characteristics of biomass ring briquetting mold under general condition were used to establish friction heat analysis model of the female die of ring briquetting mold. Numerical simulation experiment about friction heat formation process of the female die with material of 42CrMo was carried out by using of Solidworks and ANSYS software. The results show that the female die temperature of briquetting presents increasing trend with running time increasing. The temperature rising speeds are different from the internal and external surface and the shape holding tube of female die. The temperature of female die internal surface increases with rotating speed of punch increasing. The positive softening rate of lignin appears when the rotating speed of punch reaches 240 r/min. By adjusting the relevant factors of the mold material, structure, materials and production efficiency, etc., the time of reaching softening temperature point of lignin is shorten, and the material shaping quality is improved.

 

Key words: plunger; biomass; briquetting; friction heat; ANSYS software

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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