Spanish designer Bernat Quincy completed a “one coffee cup per day†plan with 3D ceramic printing, and produced a unique ceramic coffee mug every day for 30 days. The time spent on each cup from conception, design, molding, sintering to completion is controlled within 24 hours.
First, 3D printed organic binders were applied to the tiled ceramic powder. Each time a layer was built, ceramic powder and binder were added to the top until the entire model was completed. Second, the model will be sent to the furnace for heating so that the adhesive will be cured. Again, after the furnace is turned off, the outer ceramic powder is swept to obtain a solid model. Finally, after the glaze is sprayed, heating is performed to obtain a bright and glossy coffee cup. Although not every coffee cup has practicality, this fresh idea and technology has caused a sensation in the design world.
This paper introduces the definition and principle of ceramic 3D printing technology, and the difference between the existing 3D effect of ceramic tiles and the development status, to explore its application trend in the daily ceramics and building sanitary ceramics industry.
First, the definition and principle
3D printing technology refers to the technology of generating three-dimensional entities by adding layers of materials in a continuous physical layer. 3D printing can be divided into: layer-by-layer bonding method and direct molding method according to the process. Direct molding method can directly print more complicated closed-cell structures. The layer-by-layer bonding method refers to spraying a binder adhesive onto the ceramic powder bed to be formed by using a nozzle. After finishing one layer, adding a new powder to the surface layer of the bed, and then spraying the binder, repeating this, and finally removing the unjetted A three-dimensional object can be obtained from the binder powder. The direct molding method is to prepare a ceramic ink by using a ceramic powder to be formed and a binder, and directly form the film by 3D printing.
Second, the difference with the existing ceramic tile 3D effect
There are two kinds of 3D effects promoted by ceramic tiles. One is to achieve a three-dimensional visual effect through the design of the pattern, and the other is the actual effect of uneven surface. There are four ways to achieve surface unevenness: concave and convex molds, spray glaze (ink), color glaze and ink accumulation (screening roller printing of conventional color glaze, inkjet printing of conventional ink, large particle ink) The engraving of the water knife. The existing 3D effect of the tile is mainly to achieve a visual stereoscopic or uneven decorative effect on the surface of the ceramic tile, instead of forming a main structure by layer-by-layer printing by 3D technology.
Third, the status quo of development
The Massachusetts Institute of Technology invented 3D printing technology in 1993, using metal and ceramic powders, and molding together through a binder. The University of Washington has developed 3D glass printing technology by adjusting the mixing ratio of glass powder to binder and heating temperature to help architects test which glass design is best for which environment.
In 2007, Shanghai University of Technology used gypsum powder, polyvinyl alcohol, white carbon black and other slurries to produce a gypsum mold with compact structure and small dimensional deformation through 3D printing technology. In 2013, Northwestern Polytechnical University used silicon powder as raw material and dextrin as binder. The porous silicon body was prepared by 3D printing technology, and silicon nitride ceramic parts such as screws and nuts with high porosity were obtained by reaction sintering.
Fourth, the development trend
Ceramic 3D printing technology has the advantages of fast forming speed, printable complex parts, and low cost of personalized products. It can be used to prepare ceramic pins, electronic ceramic devices, porous ceramic filters, ceramic teeth, etc. for optical fiber connectors. Complex, high precision products. Ceramic 3D printing technology also has great potential in the field of daily use and building sanitary ceramics, such as the personalized preparation of art ceramics, the rapid printing of embossed waistline bricks, the manufacture of sanitary ware molds, the custom-made ceramic tiles, and so on. . It can take up to a month to manually make a set of sanitary ceramic molds, and it takes only one or two days to use 3D printing technology.
At the same time, the commercialization of ceramic 3D printing technology faces a series of problems: manufacturing speed, material properties of products, machine and material costs, molding accuracy and quality, and so on. How to effectively pile up ceramic objects with precise dimensions and complex structure, how to eliminate residual stress in complex sintered body during sintering, how to ensure the compact ceramic products, and how to prepare more stable ceramic inks, etc. Further solution.
Antimony Iii Oxide,Diantimony Trioxide,Pure Diantimony Trioxide,Antimony Trioxide 99.8% Min
HUNAN ZHONGNAN ANTIMONY&TUNGSTEN TRADING CO.,LTD , https://www.znat.com.cn