Disclosed are methods and devices to build 3-D cured thermoset polymers with lasers. These devices do not need any UV additive and can be made without using a vat or spin coating techniques. The method relies upon using a tilted sharp blade as the re-coater and the translation of the uncured material in the Z direction for relatively tall parts.
B29C 64/268 - Arrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB]
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
A process to additively manufacture a three dimensional part includes the steps of sequentially forming layers of a thermally curable mixture of polydimethylsiloxane (PDMS) and a curing agent, selectively thermally curing the individual layer by heating the layer with a focused electromagnetic radiation where less than 60% of the electromagnetic radiation passes through 1 micron of the heat curable mixture. The three dimensional part is then cleaned of any uncured heat curable mixture.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29K 83/00 - Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as moulding material
B29K 105/00 - Condition, form or state of moulded material
Disclosed are methods and devices to build 3-D cured thermoset polymers with lasers. These devices do not need any UV additive and can be made without using a vat or spin coating techniques. The method relies upon using a tilted sharp blade as the re- coater and the translation of the uncured material in the Z direction for relatively tall parts.
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29C 64/268 - Arrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB]
A process to additively manufacture a three dimensional part includes the steps of sequentially forming layers of a thermally curable mixture of polydimethylsiloxane (PDMS) and a curing agent, selectively thermally curing the individual layer by heating the layer with a focused electromagnetic radiation where less than 60% of the electromagnetic radiation passes through 1 micron of the heat curable mixture. The three dimensional part is then cleaned of any uncured heat curable mixture.
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29C 64/268 - Arrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB]
The teachings of the present disclosure provide methods and apparatus for removing substances from a process fluid. The system may include a centrifuge body rotatable around a longitudinal axis, the centrifuge body having a first end and a second end. The first end may be configured for receiving a process fluid. The second end may be configured for dispensing a clarified fluid. The centrifuge body may include a first working space and a second working space. The working diameter of the second working space may be greater than the working diameter of the first working space.
The teachings of the present disclosure provide methods and apparatus for enhanced incineration. A method for improving the performance of an incinerator may comprise separating one or more substances from a process fluid using a classifying centrifuge, ejecting a first substance from the classifying centrifuge, the first substance having characteristics optimized for incineration, incinerating the first substance, and using heat generated from the incineration of the first substance to enhance the combustion efficiency of an additional substance separated from the process fluid.
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