为了给钛合金的模锻工艺制定提供理论依据,利用稳态法在自制的接触热阻测量装置上研究了玻璃润滑剂对TA15钛合金与模具用K403镍基高温合金界面接触热阻的影响.结果表明:在TA15和K403合金接触面间加入玻璃润滑剂可显著增大两者间的接触热阻;当界面平均温度不超过636℃,玻璃润滑剂厚度在0.06～0.96 mm范围内时,TA15与K403合金界面接触热阻与玻璃润滑剂厚度大致呈线性关系;TA15与K403合金的界面接触热阻随着温度的升高及压力的增大而减小.
In order to provide theoretical basis for the forging process of Ti alloy, an experimental study for examining thermal contact resistance(Rt)of TA15 (Ti alloy)/glass lubrication/K403 (Ni base alloy) joint was carried out by using steady heat flow method with a set of self-developed thermal contact resistance experimental system. The results show that glass lubrication had a great adiabatic characteristic. R, was linear with the thickness of glass lubrication when the thickness of glass lubrication changed from 0.06 to 0.96 mm and the temperature of the joint was below 636 ℃. Rt of TA15/glass lubrication/K403 decreased with increasing pressure and temperature.
参考文献
| [1] | Yeau-Ren Jeng;Jen-Tin Chen;Ching-Yang Cheng .Theoretical and experimental study of a thermal contact conductance model for elastic, elastoplastic and plastic deformation of rough surfaces[J].Tribology letters,2003(4):251-259. |
| [2] | 徐烈,张涛,赵兰萍,李兆慈,胡永刚.双热流法测定低温真空下固体界面的接触热阻[J].低温工程,1999(04):185-189,192. |
| [3] | 湛利华,李晓谦,胡仕成.界面接触热阻影响因素的实验研究[J].轻合金加工技术,2002(09):40-43. |
| [4] | S. Sun/7 Kumar;K. Ramamurthi .Thermal contact conductance of pressed contacts at low temperatures[J].Cryogenics,2004(10):727-734. |
| [5] | Chia-Ken Leong;D.D.L. Chung .Carbon black dispersions as thermal pastes that surpass solder in providing high thermal contact conductance[J].Carbon: An International Journal Sponsored by the American Carbon Society,2003(13):2459-2469. |
| [6] | 陈晓燕,石玉美,汪荣顺.玻璃钢低温下导热及接触热阻的实验研究[J].低温与超导,2006(06):414-416,477. |
| [7] | Cheng WW;Madhusudana C .Effect of electroplating on the thermal conductance of fin-tube interface[J].Applied thermal engineering: Design, processes, equipment, economics,2006(17-18):2119-2131. |
| [8] | 任红艳,胡金刚.接触热阻与接触导热填料[J].宇航材料工艺,1999(06):11-15. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%