摘要:
Systems (200) and methods for making different plastic products (202, 204) in a single melting process are provided. A method includes melting a plastic resin in a first extruder (104) to form a melt (106) and transferring at least a portion of the melt to a second extruder (114). Any portion of the melt (106) that is not transferred to the second extruder (114) is formed into a first plastic product (202). Additives (116) are blended with the melt in the second extruder to form a second melt (118), and a second plastic product (204) is formed from the second melt (118).
摘要:
The invention relates to a method for treating a monomer, pre-polymer, polymer or a corresponding mixture, in particular for producing a dope for producing a polymer fiber, in particular a p-aramide fiber, in which the monomer, pre-polymer, polymer, additives or a corresponding mixture is admixed with a solvent, blended, fused, homogenized and/or degassed and then discharged, which takes place at least partially in a reactor (7), is to force-feed the monomer, pre-polymer, polymer or a corresponding mixture into the reactor (7) using a force-feed device (4).
摘要:
Apparatus has a vacuum pump for conveying granular plastic resin material from a supply to receivers retaining and dispensing the resin when needed by a process machine with a flow limiter connected to the suction head of the vacuum pump, and a second flow limiter controlling and limiting to a maximum value vacuum flow through a conduit carrying auxiliary additives to the receivers.
摘要:
Disclosed in an apparatus for the processing of plastics, with a container with a rotatable mixing implement, wherein a conveyor being provided, with a screw rotating in a housing, wherein the imaginary continuation of the longitudinal axis of the conveyor in a direction opposite to the direction of conveying passes the axis of rotation, there being, on the outflow side, an offset distance between the longitudinal axis and the radius that is parallel to the longitudinal axis, and wherein the smallest possible distance (ms) between the implement and screw is described by the following relationship: ms≦k*d+K, where d is the diameter of the screw in mm, K is a factor in the range from 20 to 100, more particularly 20 to 80, k is a factor in the range from 0.03 to 0.4, more particularly 0.04 to 0.25.
摘要翻译:公开在用于处理塑料的装置中,具有带有可旋转混合工具的容器,其中提供有一个在壳体中旋转的螺杆的传送器,其中输送机的纵向轴线在与 输送方向通过旋转轴线,在流出侧存在纵向轴线与平行于纵向轴线的半径之间的偏移距离,并且其中工具和螺杆之间的最小可能距离(ms)为 由以下关系描述:ms≦̸ k * d + K,其中d是螺杆的直径,以mm为单位,K是从20到100的范围,更特别是20至80的系数,k是范围内的因子 0.03〜0.4,更特别是0.04〜0.25。
摘要:
A device for imparting vibrational energy to polymeric pellets in a feed path of an extruder is disclosed. The device includes a feed path vibrator having an elongate imparting portion for being disposed within the feed path of the extruder, and a transfer portion extending from the imparting portion. The transfer portion is configured for coupling to a source of vibration energy, and the elongate imparting portion includes at least one twisted portion along its length.
摘要:
Gum manufacturing machinery and method of manufacturing gum is illustrated in which a gum loafing machine generates loaves of finished gum that are then subsequently run through a gum conditioner to more uniformly set the temperature and viscosity of the gum material prior to further processing. Upon achieving the appropriate conditioning level, a further forming extruder may be used to generate a continuous gum ribbon for subsequent rolling and scoring operations. The gum conditioner may include vertically stacked conveyors that have different operational modes including a first mode that provides a serpentine path for a long residence time and a second mode that provides a cascading path that avoids or bypasses much of the length of some of the conveyors to provide a shorter residence time. The gum manufacturing machinery may be used in an adjustable manner so as to accommodate difference gum recipes for different batches of gum product.
摘要:
A rod-shaped FRP bar is manufactured with a fiber and a resin by using a nozzle 100 which includes an outer nozzle 11 having a penetration hole at its center and a plurality of middle nozzles 12 disposed at an inlet of the outer nozzle 11 so that one middle nozzle is located inside another middle nozzle with an interval. Fibers are supplied through a center hole of the middle nozzle located at an innermost location, through intervals between the middle nozzles and through intervals between the middle nozzles and the outer nozzle, thereby making a hybrid FRP bar 1 having a section in which the fibers configure a plurality of fiber distribution layers from the center of the FRP bar toward the outside.
摘要:
A method for improving the throughput of solid-state shear pulverization and solid-state melt-extrusion devices may include the addition of a heat absorbing material with a mixture of polymeric materials in an extruder. The extruder may include one or more extrusion screws. One or more portions of the one or more extrusion screws, one or more barrel sections, and/or one or more extruder work zones may be temperature controlled to maintain a temperature of the polymeric mixture in contact therewith at or below the liquefication temperature of the polymeric materials. The liquefication temperature may be a melting point of a semi-crystalline polymer or a glass transition temperature of an amorphous polymer.
摘要:
A batch mixer is equipped with a plunger for pushing material from the batch mixer. The batch mixer includes a mixer tank structured to accommodate material. The mixer further includes a mixer head comprising at least one blade structured to blend the material within the mixer tank. The mixer further includes a plunger mechanism structured to push the blended material directly from the mixer tank.
摘要:
The invention relates to an apparatus for the pretreatment and subsequent conveying or plastification of plastics, with a container with a mixing and/or comminution implement that is rotatable around an axis of rotation, wherein, in a side wall, an aperture is formed, through which the plastics material can be removed, a multiscrew conveyor being provided, with at least two screws rotating in a housing, wherein the imaginary continuation of the longitudinal axis of the conveyor in a direction opposite to the direction of conveying passes the axis of rotation, where, on the outflow side, there is an offset distance between the longitudinal axis of the screw closest to the container, on the outflow side, and the radius that is parallel to the longitudinal axis, and in that the screws co-rotate.