作者机构：
[Luo Ying-she; Li Xian-jun; Ma Yuan-rong] Cent S Univ Forestry & Technol, Inst Rheol Mech & Mat Engn, Changsha 410004, Hunan, Peoples R China.
通讯机构：
[Luo Ying-she] C;Cent S Univ Forestry & Technol, Inst Rheol Mech & Mat Engn, Changsha 410004, Hunan, Peoples R China.
会议名称：
第九届全国流变学学术会议
会议时间：
2008-09-28
会议地点：
长沙
会议论文集名称：
第九届全国流变学学术会议论文集
关键词：
WOOD;RHEOLOGY;creep;mechano-sorptive;CREEP;DRYING;stress;DEFORMATION;set;wood rheology;creep;mechano-sorptive creep;drying stress;deformation set
摘要：
By studying and summarizing the characteristics of wood rheology, the mathematic models of creep and mechano-sorptive creep of wood were analyzed. Rheology behaviors in process, especially drying stress and deformation set were discussed. Application of wood rheology in woodcraft process was elaborated and the research prospects and orientation were forecasted.
作者机构：
[Zhou Jian; Li Li-jun; Li Xin-hua] Ctr S Univ Forestry & Technol, Coll Machinery & Elect, Changsha 410004, Hunan, Peoples R China.;[Luo Yin-she; Yin Shui-ping] Ctr S Univ Forestry & Technol, Inst Rheol Mech & Mat Engn, Changsha 410004, Hunan, Peoples R China.;[Zhong Qi-wen] Ctr S Univ Forestry & Technol, Dept Teaching Affair, Changsha 410004, Hunan, Peoples R China.
通讯机构：
[Zhou Jian] C;Ctr S Univ Forestry & Technol, Coll Machinery & Elect, Changsha 410004, Hunan, Peoples R China.
会议名称：
第九届全国流变学学术会议
会议时间：
2008-09-28
会议地点：
长沙
会议论文集名称：
第九届全国流变学学术会议论文集
关键词：
Laser-induced chemical vapor deposition (LCVD);growing rapid;diameter;microcarbon
摘要：
Argon ion laser was used as the induced light source and ethane (C2H4) was selected as the precursor gas, in the variety ranges of laser power from 0.5 W to 4.5 W and the pressure of the precursor gas from 225×133.3 Pa to 680×133.3 Pa, the experiments of laser induced chemical vapor deposition were proceeded for fabrication of micro carbon pillar. In the experiments, the influences of power of laser and pressure of work gas on the diameter and length of micro carbon pillar were investigated, the variety on averaged growth rate of carbon pillar with the laser irradiation time and moving speed of focus was discussed. Based on experiment data, the micro carbon pillar with an aspect ratio of over 500 was built through the method of moving the focus.
摘要：
The rapeseed oil extracted from the mature seeds was purified by refining processing, and the rheological characteristic analysis of the viscosity and dynamic shear rate at gradient temperatures was made. The result shows that at 20, 40, 60 and 80 °C respectively, when the shear rate gradually rises, the torque increases accordingly but its viscosity does not vary distinctly. The result suggests that when rapeseed oil is used as the raw of edible oils and industries, the working procedures at high temperature will not influence its rheological characteristic distinctly.
作者机构：
[Luo, Yingshe] Cent S Univ Forestry Technol, Inst Rheol Mech & Mat Engn, Changsha 410004, Peoples R China.;[Peng, Xianghua] Xiangtan Univ, Coll Informat Engn, Xiangtan 411105, Peoples R China.
通讯机构：
[Luo, Yingshe] C;Cent S Univ Forestry Technol, Inst Rheol Mech & Mat Engn, Changsha 410004, Peoples R China.
关键词：
3D Modeling;Deform 3D;Finite Element;Heat Rheological Forming;TC 11 Titanium Alloy
摘要：
The heat rheological forming of the TC11 titanium alloy vane disk has been studied. The dies of rheological forming were 3D-modeled based on UG and the heat rheological forming of the TC11 titanium alloy under a certain temperature and a low strain rate was analyzed by DEFORM 3D based on variation principle of rigid viscoplastic non-compressed material. A series of results including rheological forming procedure, equivalent strain field, temperature field and load-stroke curves of punch and cavity die, were obtained by finite element method. The deformation characteristic of the TC11 titanium alloy was well known and its heat rheological forming process and parameters were determined. Moreover, the local underfilled phenomenon in practical manufacture was predicted and analyzed, and we found that the defects could be restricted by reducing the forming velocity.
