摘要:
Method for producing a plastic part having a sandwich structure, wherein: at least two fibre-reinforced plastic sheets are positioned in a mould; at least one foam insert is positioned in the mould between the plastic sheets, the foam insert forming a structural core; the mould is closed, and pressure and temperature chosen to enable the plastic to flow and polymerise are applied; and the part thus obtained is removed from the mould.
摘要:
The present invention provides a semi-product made of a prepreg, a three-dimensional preform and an overmolded part. More particularly, the present invention provides a semi-product made of a prepreg, including at least a first prepreg layer and a second prepreg layer, characterized in that a metal layer is laid between the first prepreg layer and the second prepreg layer. Since the metal layer is added between the prepreg layers, the three-dimensional preform made of the semi-product can be supported by the metal layer during a reheating process prior to overmolding, thereby well maintaining its three-dimensional shape without collapsing. In addition, since the added metal layer is retained in a final overmolded product, it can enhance mechanical strength of the product and serve as a supplementary reinforcement.
摘要:
Masterbatch facility comprising: a feed and blend system (10) comprising greater than or equal to one feeder (14), greater than or equal to one discharger (12), a manual feed station (16), or a combination thereof, and further comprising a mixer (18), wherein at least one of the feeders is an assisted component feeder, wherein at least two components are fed via the feeder, discharger, manual feed station, or a combination thereof to the mixer, wherein the mixer is a double shaft mixer rotating in opposite directions, a pellet mill (20) comprising a buffer hopper, a screw feeder, a pellet compactor (22), and a screener (24), wherein the pellet compactor comprises a die plate, a roll, and a cutter hub, a product handling system (30) comprising a product hopper (34) and a filling station (32), and a utilities system (50).
摘要:
In a method for reinforcing a fiber composite component for aviation and space flight, a vacuum mat is configured with at least one receiving portion for reproducibly receiving at least one reinforcing element. The at least one reinforcing element is introduced into the at least one receiving portion of the vacuum mat. The vacuum mat with at least one introduced reinforcing element is applied reproducibly in a sealed manner to the fiber composite component to be reinforced to form a mold portion and at least the formed mold portion is cured to connect the at least one reinforcing element to the fiber composite component. The vacuum mat is then removed from the reinforced fiber composite component so that the vacuum mat can be reused.
摘要:
The present invention is directed to a fluoropolymer tape having an electrically conductive surface. More specifically, the present invention is directed to a polytetrafluoroethylene (PTFE) tape and method for producing an electrically conductive tape by blending vapor-grown carbon fiber or carbon nanotubes or combinations of both with PTFE.
摘要:
A two-color molding method with a short cycle time and a multicolor molding method including that two-color molding method, whereby, by performing an elastomer molding step using a time Z from a time t2 to t7 in the range of the time Y needed for the shaped article takeout step (A and B) and mold closing step (C) in the time t1 to t9, it becomes possible to effectively use the time of the shaped article takeout step (A and B) and mold closing step (C) which could not be utilized at all for the molding process in the past for the molding process, whereby the cycle molding time X can be shortened.
摘要:
In one embodiment of the present invention, a method comprises a plurality of operations. An operation is performed for depositing a quantity of article-forming media within a media receiving cavity of article forming equipment. After depositing at least a portion of the article-forming media within the media receiving cavity, an operation performed for depositing a volume of a prescribed fluid into the media receiving cavity. Depositing the prescribed fluid includes moving a first fluid delivery device through the quantity of the article-forming media while injecting the prescribed fluid through the first fluid delivery device into the quantity of the article-forming media.
摘要:
An exemplary injection mold includes a first mold, a second mold, and a trimming member. The first mold and the second mold cooperatively define a cavity therein, for forming a molded article. A runner is defined in the second mold and communicated with the cavity, for melted resin running therethrough. A through hole is defined in the second mold, with an end disposed at a connection between the runner and the cavity. The trimming member is slidably received in the through hole, moving between a first position to allow melted resin flowing into the cavity and a second position to prevent melted resin flowing into the cavity.
摘要:
A sprue bushing includes a melt channel for receiving a melt stream of moldable material from a source. The melt channel includes a first portion, a second portion and a decompression cavity located between the first portion and the second portion. A manifold having a manifold channel receives the melt stream from the melt channel of the sprue bushing and delivers the melt stream through the nozzle channels of several hot runner nozzles towards at least one mold cavity. A decompression device, which includes a rod having an enlarged head, is movable by an actuator to reciprocate within the decompression cavity between a retracted position and an extended position. Movement of the enlarged head from the extended position to the retracted position causes the suck back of the molten material in the hot runner nozzle and causes a portion of the molten material to be drawn toward the decompression cavity.