(1. 北京林業(yè)大學(xué) 工學(xué)院，北京 100083；
2. 內(nèi)蒙古農(nóng)業(yè)大學(xué) 機(jī)電工程學(xué)院，呼和浩特 010018；
3. 航天科工集團(tuán)第六研究所，呼和浩特 010076)
摘 要: 為研究柱塞嚙合式生物質(zhì)環(huán)模成型機(jī)摩擦特性，利用傳熱學(xué)原理及柱塞環(huán)模冷壓成型特點(diǎn)，以42CrMo鋼為凹模材料，建立成型機(jī)凹模摩擦熱分析數(shù)學(xué)模型，并借助Solidworks及ANSYS軟件對(duì)物料成型過(guò)程中凹模摩擦熱進(jìn)行溫度場(chǎng)數(shù)值模擬試驗(yàn)及數(shù)據(jù)對(duì)比分析。結(jié)果表明：凹模溫度隨工作時(shí)間增加呈上升趨勢(shì)，其耐磨襯套及保型筒內(nèi)、外壁及凹模體外壁溫度增加速度不同；凹模溫度增速隨凸模轉(zhuǎn)速變化而變化，其內(nèi)壁溫度在凸模轉(zhuǎn)速達(dá)240r/min時(shí)達(dá)最佳生物質(zhì)物料木質(zhì)素軟化狀態(tài)；通過(guò)調(diào)整模具材料、物料、生產(chǎn)率等相關(guān)因素，可有效縮短物料木質(zhì)素達(dá)軟化溫度時(shí)間，提高物料成型質(zhì)量。
關(guān)鍵字: 柱塞式；生物質(zhì)；成型；摩擦熱；ANSYS軟件
（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
