A preparation method of 3D printing rapid prototyping inorganic powder material

Abstract

The invention discloses a preparation method of 3D printing rapid prototyping inorganic powder material, which is characterized in that the method comprises: adding vinyltriethoxysilane: 8% to 22% in a grinding machine according to the mass percentage concentration, Add inorganic powder materials: 78%~92%, turn on the grinder at 200 rpm, grind at room temperature for 4~6? h, to obtain the pretreated inorganic powder material; then in the grinder, add the pretreated inorganic powder material according to the mass percentage concentration: 85%~96%, add EVA hot melt adhesive powder: 4%~15%, and turn on the grinder speed At 200 rpm, grind 4~6 at room temperature? h, The obtained 3D printing rapid prototyping inorganic powder material. The preparation process is simple, the conditions are easy to control, the production cost is low, and the industrial production is easy. The material does not need to be sprayed with adhesive, and can be directly formed by heating at 140-180°C and pressure within the range of 2MPa-6MPa, and the forming operation is simple.

Description

technical field [0001] The invention relates to a method for preparing a 3D printing inorganic powder rapid prototyping material, which belongs to the field of rapid prototyping materials, and in particular to a preparation process for a 3D printing rapid prototyping inorganic powder material. Background technique [0002] Three Dimonsion Printing (Three Dimonsion Printing, referred to as Three DP) is a rapid prototyping technology that can divide the three-dimensional model data designed by the computer into layer model data, and build specific raw materials layer by layer until the entire entity is constructed. Three-DP molding has the advantages of low cost, no pollution in the working process, and fast molding speed. [0003] Rapid prototyping technology, also known as rapid prototyping manufacturing (RPM) technology, was born in the late 1980s. It is a high-tech manufacturing technology based on material accumulation method and is considered to be a major achievement in...

AI Technical Summary

Problems solved by technology

[0004] 3D printing technology includes three DP technology, FDM fusion lamination molding technology, SLA stereolithography technology, SLS selective laser sintering technology, DLP laser molding technology and UV ultraviolet molding technology. The materials used in different technologies are completely different, which are different from our ordinary people and families. The most common application is FDM 3D printing technology. This technology can be used in the home. It is easy to operate and the materials used are widely available. The products printed by this technology are also close to our daily necessities. The materials used are mainly environmentally friendly and high-quality. Molecular materials, such as: PLA, PCLPHAPBSPA ABSPCPS POM PVC, because this technology is generally printed on the desktop, the smell or decomposition of the molten polymer material produces harmful substances that come into direct contact with our people, which is likely to cause safety problems

[0007] Due to the large particle size of the three DP rapid prototyping material powder, it is difficult to form thin-walled parts, the forming accuracy of tiny parts is not high enough, and the surface has a more obvious roughness; Insufficient

In addition, the three-DP process molding materials currently sold in the market are basically monopolized by foreign companies, and the price is high, which seriously restricts the promotion and popularization of the three-DP molding technology in my country.