A processing method and equipment for continuous fiber multilayer winding thermoplastic composite pipe
A technology of composite pipes and continuous fibers, which is applied to tubular articles, other household appliances, household appliances, etc., can solve problems such as weak bonding, and achieve the effect of improving good welding, reliable welding and simple process.
Active Publication Date: 2017-08-25
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
Solve the technical problem of weak interlayer bonding between the impregnated tape and the thermoplastic composite pipe in the prior art
Method used
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Embodiment
[0029] Such as Figures 1 to 4 shown. The processing equipment for continuous fiber multi-layer winding thermoplastic composite pipes of the present invention includes a continuous long fiber impregnation belt 3, a control device 5 for installing and controlling the axial and circular motion of the thermoplastic inner pipe 1, and a melt for conveying molten plastic Supply device 6;
[0030] The front end of the melt supply device 6 is equipped with a flat slot die head 4, the flat slot die head 4 has an upper end face, a lower arc-shaped end face and a flow channel 4-1, and the flow channel 4-1 communicates with the melt supply device 6, The upper end surface of the flat slot die head 4 is in contact with the end of the continuous long fiber impregnated belt 3 and heated, and the lower arc-shaped end face of the flat slot die head 4 is in contact with the outer wall surface of the thermoplastic inner tube 1 and heated ; The flat slot die 4 is used to attach and wrap the cont...
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The invention discloses a processing method and equipment for continuous fiber multi-layer winding thermoplastic composite pipe, including a continuous long fiber impregnation belt, a control device for installing and controlling the axial and circular motion of the thermoplastic inner pipe, and a device for conveying molten plastic Melt supply device; the front end of the melt supply device is equipped with a flat slot die head; during the winding process, the inner tube rotates and moves along the axis, and the pressure roller further promotes the winding of the continuous long fiber impregnated tape with the thermoplastic inner tube by pressing The inter-layers are fully welded, and are cooled and shaped by the subsequent cooling fan to complete the single-layer winding, change the rotation direction of the inner tube, and carry out the next layer of winding until the number of winding layers meets the requirements. The melt supply device directly transports the melt between the continuous long fiber impregnated belt and the continuous long fiber impregnated belt, between the continuous long fiber impregnated belt and the thermoplastic inner tube, which acts as a "bonding agent" and effectively improves the continuous Good fusion between layers of long fiber impregnated tape.
Description
technical field [0001] The invention relates to the field of polymer material molding and processing, in particular to a processing method and equipment for continuous fiber multi-layer winding thermoplastic composite pipes. Background technique [0002] Compared with traditional metal pipes, fiber-reinforced plastic composite pipes have received extensive attention in the pipeline transportation markets such as oil and natural gas due to their strong corrosion resistance, long service life, low installation cost, and small environmental damage. The fiber reinforced plastic composite pipes fall into two categories. [0003] The first type is fiber-reinforced thermosetting plastic composite pipes. Glass steel pipes are typical representatives. Thermosetting plastics have a very low viscosity in the molten state, and it is easy to achieve uniform impregnation of fibers and matrix plastics. No heating is required during winding, and the pipe forming process is simple. However,...
Claims
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IPC IPC(8): B29C53/64B29C53/80B29C53/84B29L23/00
Inventor 晋刚林晓楷任水华王小林
Owner SOUTH CHINA UNIV OF TECH