A consolidation system configured to consolidate a bulk molding compound, the apparatus comprises a barrel, a low compression first stage within the barrel, a high compression second stage within the barrel coupled with the low compression first stage, a die breaker coupled to the high compression second stage, and an extrusion die coupled to the die breaker. The low compression first stage includes a low compression screw for mixing and compressing a bulk molding compound comprising a resin and fillers. The high compression second stage includes a high compression screw for compressing the bulk molding compound into a compressed material. The die breaker comprises at least one of a plurality of holes or a plurality of slots.

A consolidation system configured to consolidate a bulk molding compound, the apparatus comprises a barrel, a low compression first stage within the barrel, a high compression second stage within the barrel coupled with the low compression first stage, a die breaker coupled to the high compression second stage, and an extrusion die coupled to the die breaker. The low compression first stage includes a low compression screw for mixing and compressing a bulk molding compound comprising a resin and fillers. The high compression second stage includes a high compression screw for compressing the bulk molding compound into a compressed material. The die breaker comprises at least one of a plurality of holes or a plurality of slots.

The invention relates to a filter device comprising an inlet chamber, an outlet chamber, a filter system which separates the inlet chamber and the outlet chamber. The filter device is characterised in that the inlet chamber comprises at least one liquid supply line and at least one liquid discharge line and the outlet chamber does not comprise a liquid supply and comprises at least one liquid discharge line. The invention also relates to a corresponding filter method.

The invention relates to a filter device comprising an inlet chamber, an outlet chamber, a filter system which separates the inlet chamber and the outlet chamber. The filter device is characterised in that the inlet chamber comprises at least one liquid supply line and at least one liquid discharge line and the outlet chamber does not comprise a liquid supply and comprises at least one liquid discharge line. The invention also relates to a corresponding filter method.

An apparatus for filtering and degassing a plastic melt, in particular of a thermoplastic plastic melt, comprising a feeding extruder (11) which comprises at least one extrusion worm (13) which is rotatable in a housing, wherein the feeding extruder opens into the feeding region of one or several parallel melt filter modules (31) and a discharge extruder (21) with at least one extrusion worm (23) is situated in the discharge region of the melt filter(s), said discharge extruder being operated in the opposite direction of the feeding extruder in such a way that the worm tip (24) acts as the intake zone and the region near the drive acts as the discharge zone, wherein, for discharging the melt, a discharge aperture (27) in the housing is provided before the drive (22) of the discharge extruder, wherein the shaft of the extrusion worm of the discharge extruder is sealed against the drive of the discharge extruder with a sealing element (26) and wherein the feeding extruder opens into melt valves (25) and/or melt deflectors which are upstream of the melt filter, and, in the discharge region of the melt filter(s) and downstream of the melt filter, melt valves (25) and/or melt deflectors are provided, subsequent to which the discharge extruder is situated and the worm tips are mounted.

Techniques involve cleaning a polymer melt, which allow volatile foreign substances and solid foreign substances to be removed from the polymer melt. Such techniques involve a filter element and a vacuum of a vacuum chamber. The polymer melt is fed through the filter element into the vacuum of the vacuum chamber, The filter element binds the solid foreign substances and the vacuum chamber takes up the volatile foreign substances.

Filter device for a molding machine with at least one filter element for filtering plasticized material, in particular plasticized plastic, wherein, in a fluidically parallel arrangement relative to the at least one filter element, at least one valve element is provided, which is formed to prevent the plasticized material from flowing through the at least one valve element during an injection process in a closed position and to allow the plasticized material to flow through the at least one valve element in an open position, in order to make it possible to relieve the pressure on the at least one filter element after the injection process.

Disclosed is a filter plate for a plastic processing apparatus, including: V-shaped grooves equidistantly formed in a plane of a mesh plate of the filter plate, V-shaped convex structures between adjacent V-shaped grooves. Filter holes having a predetermined aperture are provided on the bottom of the V-shaped grooves, and the side surfaces of the V-shaped convex structures. The top ends of the V-shaped convex structures are not provided with holes, and the outermost outer side of the V-shaped convex structure is facing downward without being provided with holes. The present invention increases the filtering area by 3-4 times without changing the aperture of filter hole, effectively extends the change cycle of filter during plastic production, and reduces waste of raw materials and the frequency of replacing filter plate during production and the labor intensity of the operators, which is beneficial to production safety and improvement of economic efficiency.

Methods and an apparatus are presented. A bulk molding compound is consolidated by sending the bulk molding compound through a die breaker and an extrusion die of a consolidation system.

Methods for extrusion of polyolefins (110) that utilize melt temperature to control molecular weight and also reduce gels. Disclosed herein is an example method for controlling polymer chain scission in an extrusion system (100), comprising: melting a polyolefin resin (110) in extruder (102) at a first melt temperature to form a first melt (112); passing the first melt (112) through a screen pack (106); forming the first melt 112) into a first polyolefin product (116, 118); melting additional polyolefin resin (110) of the same grade in the extruder (102) at a second melt temperature to form a second melt (112), wherein the second melt temperature differs from the first melt temperature by 5 C. or more to control chain scission in the extruder (102); passing the second melt (112) through the screen pack (106); and forming the second melt (112) into a second polyolefin product (116, 118).