A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Gypsum powder for 3D printing
The invention relates to gypsum powder for 3D printing, which is prepared from the following components in parts by mass: 70 to 90 percent of base material alpha-hemihydrate gypsum, 10 to 25 percent of binding agent, 0.5 to 5 percent of coagulant, 0.5 to 2 percent of dispersing agent and 5 to 10 percent of other auxiliary agents. The granularity of the base material alpha-hemihydrate gypsum powderis 100 to 500 meshes. The gypsum powder effectively overcomes the defects of low strength, slow curing, boundary diffusion of printed products, high water absorption, poor water resistance and the like of the printed products in the prior art, and has the advantages of high molding hardening speed, proper permeation, high molding precision, high strength, no toxicity, environment friendliness andthe like; gypsum powder is uniform, fine and free of agglomeration; the powder supply system is good in powder flowability, not prone to blockage, capable of being laid into a thin layer, even and smooth in powder laying, free of wrinkles, free of powder flying and capable of not blocking a printing head, the effect is ideal, the raw materials are low in price and easy to obtain, the production process is simple, and the production cost is effectively reduced.
本发明涉及一种用于3D打印的石膏粉料，所述石膏粉料按质量份计算由以下组分组成，包括基料α‑半水石膏70～90％、粘结剂10～25％、促凝剂0.5～5％、分散剂0.5～2％、其它助剂5～10％。所述基料α‑半水石膏粉末的粒度为100～500目。本发明有效地解决了现有技术存在的打印产品强度较低、固化慢、打印产品边界扩散、吸水率高、耐水性差等不足，本发明石膏粉末具有成型硬化速度快、渗透合适、成形精度高、强度好、无毒环保；本发明石膏粉末均匀细腻，无团聚；粉末流动性好，使供粉系统不易堵塞，能铺成薄层，且铺粉均匀顺畅，没有皱褶，无粉末飞扬，不会堵塞打印头，效果比较理想，并且本发明的原料价廉宜得，生产工艺简单，有效地降低了生产成本。
Gypsum powder for 3D printing
The invention relates to gypsum powder for 3D printing, which is prepared from the following components in parts by mass: 70 to 90 percent of base material alpha-hemihydrate gypsum, 10 to 25 percent of binding agent, 0.5 to 5 percent of coagulant, 0.5 to 2 percent of dispersing agent and 5 to 10 percent of other auxiliary agents. The granularity of the base material alpha-hemihydrate gypsum powderis 100 to 500 meshes. The gypsum powder effectively overcomes the defects of low strength, slow curing, boundary diffusion of printed products, high water absorption, poor water resistance and the like of the printed products in the prior art, and has the advantages of high molding hardening speed, proper permeation, high molding precision, high strength, no toxicity, environment friendliness andthe like; gypsum powder is uniform, fine and free of agglomeration; the powder supply system is good in powder flowability, not prone to blockage, capable of being laid into a thin layer, even and smooth in powder laying, free of wrinkles, free of powder flying and capable of not blocking a printing head, the effect is ideal, the raw materials are low in price and easy to obtain, the production process is simple, and the production cost is effectively reduced.
本发明涉及一种用于3D打印的石膏粉料，所述石膏粉料按质量份计算由以下组分组成，包括基料α‑半水石膏70～90％、粘结剂10～25％、促凝剂0.5～5％、分散剂0.5～2％、其它助剂5～10％。所述基料α‑半水石膏粉末的粒度为100～500目。本发明有效地解决了现有技术存在的打印产品强度较低、固化慢、打印产品边界扩散、吸水率高、耐水性差等不足，本发明石膏粉末具有成型硬化速度快、渗透合适、成形精度高、强度好、无毒环保；本发明石膏粉末均匀细腻，无团聚；粉末流动性好，使供粉系统不易堵塞，能铺成薄层，且铺粉均匀顺畅，没有皱褶，无粉末飞扬，不会堵塞打印头，效果比较理想，并且本发明的原料价廉宜得，生产工艺简单，有效地降低了生产成本。
Gypsum powder for 3D printing
用于3D打印的石膏粉料
LI TIANCAI (author) / BAI JINCHENG (author) / WANG MIN (author) / YAN SHENGHUI (author)
2020-07-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
3D printing gypsum powder and preparation method thereof
| European Patent Office | 2021
Gypsum 3D printing powder as well as preparation method and application thereof
| European Patent Office | 2023