光固化树脂基陶瓷单层成型工艺研究

在陶瓷光固化三维成型工艺中,单层成型效果对坯体堆积成型起着决定性作用.文章主要研究在单层坯体打印成型中,光源波长、扫描速度、光照时间和光源的照射距离对成型件质量和精度的影响.实验结果表明,光源波长越接近引发剂吸收波长范围,固化效果越好;光源的曝光量达到临界曝光量时,浆料才能发生完全固化;随着扫描速度的不断增大,陶瓷坯体的硬度不断降低,固化厚度逐渐减小,当扫描速度很大时,坯体表面致密度极低,组织样貌变得疏松.此外,紫外光源的照射距离对坯体的成型质量没有影响.

Study on Single Layer Forming Technology of Light Curing Resin Based Ceramic

In the ceramic light curing three-dimensional molding process , the single-layer forming effect on the accumulation of green body plays a decisive role .In this paper , we mainly study the influence of the wavelength , the scanning speed , the illumination time and the irradiation distance of the light source on the quality and precision of the molded parts in the printing of single layer blank .The results show that the wavelength of the light source is closer to the absorption wavelength range of the initiator , and the curing effect is better .When the exposure amount of the light source reaches the critical exposure , the slurry can be completely cured .With the increasing scanning speed , continuously reduced , the thickness of the curing gradually reduced , when the scanning speed is very large , the body surface density is very low, the organization looks become loose .In addition , the irradiation distance of the ultraviolet light source has no effect on the molding quality of the green body .