CAJ | 학술논문

实验选用流变性优异、混料工艺简单的EVA体系黏结剂，重点研究了氧化锆陶瓷注射成型过程中注射温度和注射压力的变化对坯体外观形态和微观结构的影响，以及注射温度和升温速率对脱脂过程的影响。研究发现注射温度的变化对 EVA 体系氧化锆陶瓷坯体的外观形态以及微观结构的影响较注射压力更为明显，确定了EVA体系黏结剂最佳注射压力为70～80,MPa，试样的最佳注射温度为160,℃；通过对比和分段推进实验找到脱脂过程中缺陷产生的原因并制定了合理的脱脂方案，最终得到了外观平整光洁无变形，内部密实均匀无缺陷的脱脂坯体。
실험선용류변성우이、혼료공예간단적EVA체계점결제，중점연구료양화고도자주사성형과정중주사온도화주사압력적변화대배체외관형태화미관결구적영향，이급주사온도화승온속솔대탈지과정적영향。연구발현주사온도적변화대 EVA 체계양화고도자배체적외관형태이급미관결구적영향교주사압력경위명현，학정료EVA체계점결제최가주사압력위70～80,MPa，시양적최가주사온도위160,℃；통과대비화분단추진실험조도탈지과정중결함산생적원인병제정료합리적탈지방안，최종득도료외관평정광길무변형，내부밀실균균무결함적탈지배체。
The EVA system binder with excellent rheological property and simple mixing process was selected in this ex-periment to focus on the effect of the changes in injection pressure and injection temperature in the zirconia ceramic injection molding process on the morphology and microstructure of the body,and the effect of the injection temperature and heating rate in the debinding process. The research finds that the effect of the changes in injection temperature on the morphology and microstructure of the body is more obvious in comparison with the injection pressure. The optimum injection pressure of EVA system binder is determined to be 70-80 Mpa;the optimum injection temperature of the sample is determined to be 160℃. The cause of the defects during the definding process is found out by conducting a contrast experiment and a multi-stage experiment,and then a reasonable debinding scheme is established. Finally,the debinded body which has a smooth and clean appearance without distortion,and which is dense and uniform without inside defect is obtained.