An apparatus and method for modifying an aspect of an exterior polymer material or polymer type material of a linear substrate with a fluid. The apparatus include a variable exposure gap within which the linear substrate is exposed to the fluid. The width of the exposure gap is varied with the speed of the linear substrate traversing the exposure gap to maintain a constant exposure time of the linear substrate with the modifying fluid.

An apparatus and method for modifying an aspect of an exterior polymer material or polymer type material of a linear substrate with a fluid. The apparatus include a variable exposure gap within which the linear substrate is exposed to the fluid. The width of the exposure gap is varied with the speed of the linear substrate traversing the exposure gap to maintain a constant exposure time of the linear substrate with the modifying fluid.

Disclosed herein are customizable kits of parts for the fabrication of polymer fibers. In some embodiments, the kits provided herein comprise a scaffold comprising first and second opposite surfaces and one or more pores extending through the first and second surfaces, wherein each pore comprises a first channel and a first conjunction interface. The kits additionally comprise a plurality of nozzles, wherein each nozzle comprises a second channel and a second conjunction interface, and wherein the second interface can be removably and stably coupled to the first conjunction interface of each pore while allowing a fluid through the first channel and the second channel. The kits further comprise a plurality of closure structures, wherein each closure structure comprises a third conjunction interface, and wherein the third interface can be removably and stably coupled to the first conjunction interface of each pore to seal the pore. In some embodiments, at least the second channel of each nozzle has an internal diameter configured to allow formation of a fiber.

A process of applying a fluid containing one or more additives to a surface of a linear substrate in a linear compartment. The process includes passing the linear substrate through first and second seals of the linear compartment, contacting the linear substrate with the fluid within a chamber within the linear compartment while an exposure gap has a first length that is greater than zero, the contacting being conducted for a time with the fluid at a temperature. The linear compartment is dimensionally reconfigurable, optionally during an infusion process.

A device and method for designing lightweight, strong, material efficient, extruded and pultruded profiles, profile segments and surfaces produced in profile production with rotating dies creating superior resistance to compression, bending and buckling, higher energy absorption and right strength in the right place, by: varying the thickness along and across the direction of extrusion, making reinforcing patterns varying the profile thickness, and in some cases varying angles and patterns which increases the profile segments/surface resistance against compression, bending and buckling relative to the amount of material used and resulting in the manufacturing of optimized beams and surfaces that have superior properties in terms of strength/weight, stiffness/weight ratio, mechanical energy absorption/weight unit, deformation and natural frequency, thermal transfer capacity, the breaking of the laminar flow, increased/optimized surface for chemical and/or electrochemical reaction etc.

Disclosed herein are customizable kits of parts for the fabrication of polymer fibers. In some embodiments, the kits provided herein comprise a scaffold comprising first and second opposite surfaces and one or more pores extending through the first and second surfaces, wherein each pore comprises a first channel and a first conjunction interface. The kits additionally comprise a plurality of nozzles, wherein each nozzle comprises a second channel and a second conjunction interface, and wherein the second interface can be removably and stably coupled to the first conjunction interface of each pore while allowing a fluid through the first channel and the second channel. The kits further comprise a plurality of closure structures, wherein each closure structure comprises a third conjunction interface, and wherein the third interface can be removably and stably coupled to the first conjunction interface of each pore to seal the pore. In some embodiments, at least the second channel of each nozzle has an internal diameter configured to allow formation of a fiber.

3D printing of moldings takes place by an extruder in which solid plastic is melted, the melt being discharged through a die which can be closed completely or partially or opened completely or partially and the melt which is not discharged through the die is returned into the extruder.

Provided are apparatuses for the processing of one or more components of a fluid into the surface of a linear substrate. The apparatuses include a processing barrel having a chamber defined therein as well as a linear substrate inlet and a linear substrate outlet. The processing barrel also includes a fluid inlet and a fluid outlet in fluid communication with the chamber. An exposure gap is defined between the linear substrate inlet and the linear substrate outlet. The chamber is dimensionally reconfigurable so that the exposure gap can have a length from zero to greater than zero.

To solve problems of complication and malfunction of the device's structure, an increase in the process time, and malfunction caused by catching of a front end portion of a bead apex rubber. A bead apex rubber forming method comprises a forming step P1, a connecting space opening step P2, a connecting space closing step P3, and a connecting step P4. In a rear closed state R of a molding chamber 11, the forming step P1 injects unvulcanized rubber G while a bead core A is being rotated, and forms a bead apex rubber B having a front end portion Bf. when the front end portion Bf approaches a rear shutter part 9, the connecting space opening step P2 removes a second lateral surface S2 together with the rear shutter part 9, and forms, between the front end portion Bf and a rear end portion Br, a connecting space J whose second side surface S2 side is opened. The connecting space closing step P3 closes the connecting space 3 by disposing a third lateral surface S3 extending between the rear end portion Br and the front end portion Bf. The connecting step P4 injects the unvulcanized rubber into the connecting space J closed, and connects between the rear end portion Br and the front end portion Bf integrally.

In-line inspection and control system to in-situ monitor an extrudate during extrusion. A light beam illuminates a line on the outside circumference of the extrudate skin recording the curvature. A master profile of the illuminated defect-free skin is recorded and compared to successive monitoring of the illuminated skin. Differences from the comparison indicate skin and/or shape defects. A real-time feedback to automatically adjust process control hardware reduces or eliminates the skin and shape defects based on the monitoring and comparison.