Manufacturing method of composite material one-end-sealed solid-head pipe

Abstract

The invention relates to a method for manufacturing a composite pipe with a solid end sealed and belongs to the field of fiber reinforced composite pipe fitting manufacturing. The method comprises the steps that a columnar male mould with the front end machined to be round or oval or in other similar round shapes is prepared, and in addition, the surface of the columnar male mould is coated with a demoulding material; composite prepreg is prepared, and a punching opening is formed in the front end of the prepreg through machining; the composite prepreg is laid on the surface of the columnar male mould in a covering manner, a punching opening part extends out of the front end of the mould in the twisting process, and a prepreg part extending out of the front end of the mould is bent for sealing; a BOPP band is tightly wound to the surface of the composite prepreg part obtained after laying and covering are completed; the composite prepreg obtained after the BOPP band is completely wound, together with the columnar male mould, is placed on a curing device, and a sealed solid end part is cured preliminarily; the pipe obtained after preliminary curing of the sealed solid end part is completed, together with the columnar male mould, is taken out of the curing device and placed in a curing oven for overall curing; and after the temperature is lowered, the columnar male mould is released in a physical-pulling manner, and the BOPP band is removed, so that the composite pipe with the solid end sealed is obtained.

Description

technical field [0001] The invention relates to the field of manufacturing fiber-reinforced composite material pipe fittings, in particular to a method for manufacturing composite material sealed solid-head pipes. Background technique [0002] As we all know, with the increasing development of fiber-reinforced composite materials, the application of fiber-reinforced composite products is becoming more and more extensive. Domestic fiber-reinforced composite pipe manufacturing technology is becoming more and more mature, and it is no longer difficult to manufacture ordinary composite tubular products. However, various fields are no longer satisfied with composite pipe fittings with ordinary shapes, and there are more and more special requirements for composite pipe fittings, especially composite pipe fittings that require one end to be sealed and require a firm and reliable seal. Mature manufacturing technology. Contents of the invention [0003] In order to overcome the d...

AI Technical Summary

Problems solved by technology

However, various fields are no longer satisfied with composite pipe fittings with ordinary shapes, and there are more and more special requirements for composite pipe fittings, especially composite pipe fittings that require one end to be sealed and require a firm and reliable seal. Mature Manufacturing Technology

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