A kind of clay material for laser sintering 3D printing and preparation method thereof

Abstract

The invention discloses a clay material for laser sintering 3D printing and a preparation method of the clay material. In order to obtain the clay material applicable to a laser sintering 3D printing forming technique, clay is modified and adsorbed through an inorganic sol solution, and the spherical powdery clay material is obtained through emulsification coating. The clay material has the advantages of good fluidity, good mechanical performance and high precision, is applicable to the laser sintering 3D printing forming technique, promotes popularization and application of the 3D printing forming technique and has wide market prospect.

Description

technical field [0001] The invention relates to a 3D printing material and a preparation method thereof, in particular to a clay material for laser sintering 3D printing and a preparation method thereof. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, is an emerging technology in the field of rapid prototyping. It is based on digital model files and uses bondable materials such as powdered metal or plastic to print layer by layer. Techniques for constructing objects. With the development and application of 3D printing technology, the development of materials determines whether 3D printing can be more widely used, and materials have become one of the key factors limiting the future direction of 3D printing technology. At present, 3D printing materials mainly include engineering plastics, photosensitive resins, rubber materials, metal materials, and ceramic materials. The field of printing has been applied. [0003] As ...

AI Technical Summary

Problems solved by technology

When using 3D printing technology to form ceramic products, the 3D printing materials used are all ceramic powders fired from clay, and then ceramic products are obtained by direct or indirect methods, but the preparation methods of ceramic powders are complex and costly , which seriously hinders the development and application of 3D printing technology in ceramic molding

Clay itself has excellent viscosity and plasticity, and can be directly formed into a ceramic green body, and then sintered to obtain ceramics. However, due to defects in technology and technology, the molded ceramic green body has shortcomings such as simple structure and poor dimensional accuracy, which severely limits the use of clay. For the application of clay and its products in daily life, if 3D printing technology is used for clay and then molded to obtain ceramics, the above-mentioned defects can be completely improved and solved. Therefore, the application of clay and its products in daily life Significant and market value

[0004] Unmodified clay materials are not suitable for 3D printing. High plasticity clay has poor mechanical properties, which is not conducive to support and modeling during the forming process. Clay with good mechanical properties has poor cohesiveness and plasticity, which is not conducive to 3D printing. Bonding and extrusion during the molding process, therefore, it is necessary to modify the clay to obtain a clay material suitable for laser sintering 3D printing technology, which is a prerequisite for clay to be used in 3D printing technology