Method and system for manufacturing three-dimensional porous structures
A three-dimensional porous, porous structure technology, applied in the field of drying and/or calcining 3D-fabricated porous structures, manufacturing three-dimensional porous structures, drying and/or calcining units, which can solve problems such as difficulty in predicting the mechanical and porous properties of porous structures
Pending Publication Date: 2022-04-15
威拓控股有限公司
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Problems solved by technology
As a result, producing porous structures with high precision and reproducibility using conventional drying and / or calcination processes can be challenging
Also, it can be difficult to predict the mechanical and porous properties of porous structures
Method used
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Embodiment Construction
[0139] figure 1 A schematic diagram of the printing path in the extrusion process used to fabricate the three-dimensional porous structure 1 is shown. The printed paths illustrate how the porous structured filaments are deposited in multiple layers. The method includes depositing interconnected filaments in a predetermined arrangement in a plurality of stacked layers. The successive layers of filaments are connected to each other to obtain a porous structure with interconnected pores. Furthermore, the filaments of the successive layers are angled relative to each other.
[0140] During extrusion, the nozzle 1 is scanned along the print bed 3 where the filaments are deposited, following the print path 5 shown. It should be understood that moving the print bed 3, rather than moving the nozzle 1 (kinematic reversal), is also envisaged. There may also be combinations. In an alternative example, the nozzle 1 and print bed 3 may be moved during at least part of the deposition p...
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Abstract
A method and system for manufacturing a three-dimensional porous structure. Filaments are deposited in a plurality of stacked layers in a predetermined interconnection arrangement to form a porous structure having interconnected pores. Furthermore, the porous structure is subjected to a heat treatment (drying and / or calcining) in a heating chamber by irradiating microwave energy through the porous structure to reduce moisture, solvent and / or organic material, solvent or organic material content of the porous structure. The applied microwave energy is selected based on an arrangement of structurally interconnects of the deposited filaments, the arrangement of structurally interconnects of the deposited filaments defining the shape and size of the pores of the three-dimensional porous structure.
Description
technical field [0001] The present invention relates to a method and system for fabricating three-dimensional (3D) porous structures. The method further involves drying and / or calcining units. Furthermore, the present invention relates to a method of drying and / or calcining 3D produced porous structures. Furthermore, the invention relates to a porous structure obtained by extrusion-based additive manufacturing. Background technique [0002] Additive manufacturing is now widely used and various technologies exist. Additive manufacturing helps build structures layer by layer, and the fabricated structures can be used in a variety of applications. [0003] Extrusion-based additive manufacturing methods have been used to fabricate porous structures. Materials (eg pastes, polymers, hydrogels, etc.) are extruded in filaments through a nozzle. By relatively moving the nozzles relative to the print bed during deposition, a certain alignment of the filaments can be achieved. Du...
Claims
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IPC IPC(8): B29C64/118B29C64/209B29C64/264B29C64/295B29C64/393B33Y10/00B33Y30/00B33Y50/02F26B3/347F26B5/04F26B23/08
CPCB29C64/106B33Y10/00B33Y70/10B33Y80/00B29C64/295B29C64/393B33Y50/02B33Y30/00B29C64/264B29C64/118B29C64/30B33Y40/20
Inventor 贾斯珀·勒菲弗尔巴特·米希尔森莫妮卡·古斯
Owner 威拓控股有限公司