种SiC陶瓷素坯的制造方法

• Format: Patent
• Language: Chinese
• Published: 30.10.2018
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; PERFORMING OPERATIONS; REFRACTORIES; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE; WORKING CEMENT, CLAY, OR STONE

本发明涉及种SiC陶瓷素坯的制备方法，包括：将SiC粉体、烧结助剂、粘结剂、溶剂经球磨混合后得到混合浆料；将所得混合浆料烘干或喷雾造粒，得到混合均匀粉体粒径在50μm-100μm之间的SiC陶瓷粉体；利用计算机辅助设计软件构造SiC陶瓷素坯的结构模型并采用激光粉体熔融制造技术或液态光敏树脂制造技术将SiC陶瓷粉体逐层打印直至形成所述SiC陶瓷素坯，其中单层厚度为0.1-0.2mm。本发明采用3D打印技术可以根据需求，通过计算机辅助设计制备不同结构的SiC陶瓷，该方法成型过程无需模具，对产品的复杂程度敏感度不高，具有产品开发快等系列优点。 The invention relates to making method of a SiC ceramic green body. The method comprises the following steps: mixing SiC powder, a sintering aid, a bonding agent and a solvent by ball milling to obtain a mixed sizing agent; drying the mixed sizing agent or performing spray granulation to obtain uniformly-mixed SiC ceramic powder of which the particle diameter is between 50mum and 100mum; constructing a structural model of the SiC ceramic green body by computer-aided design software, and gradually printing the SiC ceramic powder by a laser powder fusion making technology or a liquid-state photosensitive resin making technology till the SiC ceramic green body is formed, wherein the single-layer thickness is 0.1-0.2mm. A three-dimensional printi