公开(公告)号：US20240182365A1

公开(公告)日：2024-06-06

申请号：US18286115

申请日：2022-04-13

申请人： PORCELANAS DA COSTA VERDE S.A. ,  UNIVERSIDADE DE AVEIRO

发明人： Paula Maria Lousada Silveirinha VILARINHO ,  José Martinho Marques DE OLIVEIRA ,  Pedro Gonçalo Pereira DUARTE ,  Jorge Miguel Simões MARINHEIRO

IPC分类号： C04B33/04 ,  B28B1/00 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  C04B33/13 ,  C04B33/32 ,  C04B35/626 ,  C04B35/634

CPC分类号： C04B33/04 ,  B28B1/001 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10 ,  C04B33/1315 ,  C04B33/32 ,  C04B35/6265 ,  C04B35/62675 ,  C04B35/63416 ,  C04B2235/3418 ,  C04B2235/3427 ,  C04B2235/349 ,  C04B2235/6026 ,  C04B2235/6567

摘要： Composition for additive manufacturing by binder jet printing, comprising a ceramic particulate material subjected to a heat treatment and a binder particulate material, wherein the heat treatment comprises heating a particulate ceramic material from 600 to 1200° C. for 1 to 20 h, to produce the ceramic particulate material subjected to a heat treatment and the binder particulate material is a water-soluble compound. Method for additive manufacturing by binder jet printing of a conformed object comprising repeating the steps of depositing a layer of composition of the invention on a printing bed and depositing a liquid binder.
The invention solves the problems of mechanical fragility of objects conformed by binder jet printing and design defects thereof, wherein the heat treatment creates bonds and aggregations between particles of the ceramic material, maintaining them during printing.