1140 木材粉末の成形に関する研究 : 射出成形の可能性の検討

概要

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Injection tests of mixed wood powders of Cryptomeria with Japanese cypress were carried out at various temperatures in order to confirm the possibility of near net shape forming of wood powders. Effects of a container temperature on the injection pressure, a filled state of wood powders to cavity and bulk density of injected products were discussed. The experimental results showed that the injection pressure became small with increasing container temperature due to improve the fluidity of wood powders. The filled state of wood powders and bulk density of injected products became good and higher with increasing container temperature. However, when the temperature was higher than 165℃, it was impossible to inject wood powders to cavity and could not get the injected product. On the other hand, under the container temperature of 85℃ wood powders could not be injected because of less fluidity.
2003-08-05