科研之友
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摘要
Birefringence distribution in gas-assisted injection molding(GAIM) parts was measured by polarizing microscope with Berek compensator.It is found that birefringence Δn and nθθ-nrr both show a maximum value at the outer wall of the parts and then decline near the outer wall.When the value drops to a certain point,Δn becomes nearly constant down to the gas channel,but nθθ-nrr increases toward the gas channel,which is contributed to the thermal-induced birefringence.Compared with the birefringence distribution...
- 出版日期2008-11
- 单位郑州大学
