摘要:
A device for distribution of a plastic melt, wherein the device can have a main housing body. The main housing body can have at least one inlet channel and at least one outlet channel for the plastic melt. At least one receiving opening can extend between the at least one inlet channel and at least one outlet channel. A movable distributor body can be disposed within the receiving opening. The movable distributor body can have sealing surfaces for sealing with the receiving opening. The movable distributor body can be guided by the sealing surfaces.
摘要:
A filter unit for an extruder system has an outer support body, which is hollow cylindrical and limits an interior. A plurality of outer through-openings open into the interior. An outer filter element is arranged on the support body in the region of the outer through-openings. An inner support body with a plurality of inner through-openings is arranged in the interior. An inner filter element is arranged on the inner support body in the region of the inner through-openings. Using the filter unit according to the invention, a low differential pressure of a plastics material melt to be filtered can be achieved as both the outer filter element and the inner filter element provide a corresponding filter area.
摘要:
Extrusion die systems, die changers and related methods are provided herein. The die changer for changing of dies in and out of an extrusion line can include a housing having a main supply feed bore therethrough for directing, a flowable material and a channel oriented transversely to the main supply feed bore. The die changer can include a slide plate movable through the channel and transverse to a direction of flow through the bore. The slide plate can include an elongate body having a first section and a second section. A first bore can extend through the first section of the elongate body of the slide plate and a second bore can extend through the second section of the elongate body of the slide plate. The slide plate of the die changer can be moved within the channel of the housing between a first position where the first bore in the first section of the elongate body of the slide plate is aligned with the main supply feed bore and a second position where the second bore in the second section of the elongate body of the slide plate is aligned with the main supply feed bore.
摘要:
The invention relates to a device and a method for filtering viscous or highly viscous liquids, in particular plastics melts, using an oscillating filter plate.
摘要:
The purpose of the present invention is to provide a screen unit which allows for eliminating rigorous dimension control for preventing the short path phenomenon of material and which has cost advantages, and a screen changer equipped with the same.In the screen unit, a cartridge body (30) includes a hole-formed portion (15) having a plurality of through holes (12) through which the material filtered by a screen pack (14) is allowed to pass; and a contacted outer surface (21) which is provided closer to a base end side than to the hole-formed portion (15) and inclined so as to expand radially outwardly with decreasing distance to the base end. The screen pack (14) has a contacting inner surface (22) which can closely contact with the contacted outer surface (21) of a cartridge (13) when being pressed from a tip end side toward the base end with the hole-formed portion (15) covered from outside.
摘要:
The invention relates to a device and a method for testing materials, and is characterized in that the device comprises application units (2) for interaction modules (1) and an exchange system for the interaction modules, and the device is designed such that the application units (2) automatically feed interaction modules (1) to the exchange system after a control signal and the exchange system is designed to feed the interaction modules to a test position.
摘要:
Filtration apparatuses for use in polymer processing systems and methods of using the same are provided. The filtration apparatuses can include a housing with one or more supply channels and discharge channels. The filtration apparatus can also include one or more screen-bearing pistons with filter screen cavities therein for receiving filter screens that filter material flowing from the supply channels through the filter screens and out through the discharge channels. Back flushing channels can be formed by alignment of mating channels in the pistons and the housing. The filtration apparatuses can also include a controller that can communicate with a hydraulic power unit to that can be assisted by a rapid accelerator device to control the filtration apparatus. The filtration apparatuses can include filter screen retention plates.
摘要:
The invention relates to a device for filtering a fluid, in particular a liquefied plastic, with a housing with backflush channel and screen carrier and filter element whereby, in order to accelerate and improve the backflush effect, one or more displacement cylinders are provided that guide material removed from the production at adjustable high pressure and speed to the screen to be cleaned from the clean screen side to the dirty screen side, whereby an additional pressure generator ensures constant process pressure.
摘要:
An extruder filter replacement and backwash structure includes an extruder body having a feed hole and a material outlet respectively located in opposing front and rear sides thereof, a first piston set with a first piston rod, and a second piston set with a second piston rod. Subject to cross connection between the first piston rod and second piston rod and the feed hole and material outlet of the extruder body, the first filter or second filter can be replaced without shutting down the extruder press, or backwashed during operation of the extruder press.
摘要:
A device for filtering a thermoplastic melt, comprising a housing having at least one fluid feed channel and at least one fluid discharge channel and having at least two bores. The bores are in fluid communication with the fluid feed channel and the fluid discharge channel, and each houses a displaceable bolt provided with a filter unit having an inflow side and an outflow side. Each displaceable bolt can be moved at least between a filtering position and a back-flushing position. In a filling position, in which fluid flows from the outflow side of the filter unit to a storage cavity formed in the bore by the movement of the displaceable bolt. When the displaceable bolt moves into the back-flushing position, the fluid then again flows through the filter unit to the at least one back-flushing channel and thus escapes from the housing.