Abstract:
The present invention is directed to a method and a system for the production of at least one polymeric yarn comprising means for mixing a polymer (1) with a first solvent yielding a mixture; means for homogenizing the mixture; means for rendering the mixture inert (21, 22, 23); means for dipping the mixture into a quenching bath (30), wherein an air gap is maintained before the mixture reaches the quenching bath (30) liquid surface forming at least one polymeric yarn; means for drawing (41) the at least one polymeric yarn at least once; means for washing (5) the at least one polymeric yarn with a second solvent that is more volatile than the first solvent; means for heating the at least one polymeric yarn (6); means for drawing at room temperature (7) the at least one polymeric yarn at least once; and means for heat drawing (8) the at least one polymeric yarn at least once.The instant invention also concerns a system and method of dosing a polymer mixture with a first solvent into an extruder (26), a device (5), a system and a method of solvent extraction from at least one polymeric yarn, and a method and system of mechanical pre-recovery (4) of at least one liquid in at least one polymeric yarn.
Abstract:
A three dimensional printer 100 may include at least one feed chamber 102 supplying a solidified material, an extruder 104 configured to receive the solidified material from the at least one feed chamber and to process the solidified material into a molten phase, a melt pump 106 configured to receive the molten phase from the extruder, and a printing head 108 configured to receive the molten phase from the melt pump and to deposit the molten phase in successive layers to form a three-dimensional object.
Abstract:
The present invention is related to a pipe support system comprising a sleeper, a metallic bar and a polymeric material pad coating said metallic bar or, optionally, a polymeric material support on which the pipe is supported, wherein said polymeric material support is attached on both sides by bars welded to the sleeper.