摘要:
In one example, a method of fabricating a three-dimensional object includes depositing a layer of build material, depositing a coalescing agent onto the layer of build material according to a slice of three-dimensional model data, irradiating the coalescing agent with microwave radiation such that the coalescing agent converts the microwave radiation into heat to coalesce the build material in which the coalescing agent was deposited.
摘要:
The invention relates to a binder, which contains water glass and further a phosphate or a borate or both. The invention further relates to a method for constructing molds and cores layer by layer, the molds and cores comprising a construction material mixture, which at least comprises a fireproof molding base material, and the binder. In order to produce the molds and cores layer by layer in 3-D printing, the fireproof molding base material is applied layer by layer and is selectively printed with the binder layer by layer, and consequently a body corresponding to the molds or cores is constructed and the molds or cores are released after the unbonded construction material mixture has been removed.
摘要:
A method for drying a ceramic article (10) comprises providing microwave radiation from a microwave generating source (30), providing a ceramic honeycomb structure (10) having a middle portion (17) and at least one end (13), and exposing the ceramic honeycomb structure to the microwave radiation while shielding the at least one end from directly receiving the microwave radiation, such that the radiation absorbed by the middle portion is equal to or greater than the radiation absorbed by the at least one end, and the proper drying of the entire honeycomb structure without heat-induced structural degradation is thus ensured.
摘要:
A sealed honeycomb structure which can suppress increase of pressure loss and improve durability favorably is disclosed. A sealed honeycomb structure 100 including a honeycomb structure 4 having porous walls 1 dividedly forming inlet cells 2a and outlet cells 2b extending from an end surface of an inlet side to an end surface of an outlet side 12, an outlet side sealing portion 5b, and an inlet side sealing portion, wherein at least one outlet cell 2b is a reinforced cell 22 where a reinforcing part 6 for reinforcing the outlet cell 2b is formed at at least one corner portion 21 a at which the walls 1 on a cross-section vertical to an extending direction of the cell 2 cross each other, wherein the inlet cell 2a is a non-reinforced cell 23 where the reinforcing part 6 is not formed at all the corner portions 21 at which the walls 1 on the cross-section vertical to the extending direction of the cell 2 cross each other, and wherein the reinforcing parts 6 of the reinforced cells 22 are formed at a section of the honeycomb structure 4 from the end surface of the outlet side 12 in the extending direction of the cell.
摘要:
A microwave applicator assembly (100) includes a microwave applicator (102) that excites TE modes and provides a generally circular heating pattern in a lossy dielectric material. The microwave applicator has a processing chamber bounded by a circumferential wall (110) in which a plurality of indents (102) are formed. The microwave applicator assembly (100) may further include a feed waveguide (120) coupled to the microwave applicator (102) for inputting microwaves into the processing chamber. The microwave applicator assembly (100) may further include one or more choking sections in communication with the processing chamber (104) to enhance heating efficiency and reduce microwave leakage.
摘要:
The present invention relates to a process for manufacturing aggregate slabs by means of microwave irradiation and aggregate slabs manufactured by means of microwave irradiation, by means of which process the resins contained in an aggregate slab mass are cured by means of microwave irradiation.