| 摘要 |
<p>PURPOSE:To mold easily a joint pipe for a bent section, the inner circumference of which joint pipe is precise round, by assembling splittable core type molds, supporting rotatably the molds, and repeating the laminating of glass fibers on the molds, the application of a resin on the glass fibers, and the deaeration for prescribed times to mold them integrally. CONSTITUTION:After the upper and lower molds 1, 2 are assembled into an arcuate shape that is round in cross-section using assembling jigs 3, the space between the molds 1, 2 is sealed by a metal tape 15 so that a resin would not intrude when molding is effected. After the assembled molds are supported rotatably using molding jigs 4, the first layer of glass fibers 51 out of glass fibers 51-53 is laminated, then while the molds are being rotated, a resin is applied, and then bubbles are removed using a deaerating roller. Thereafter, with respect to the glass fibers 52, 53, the same procedure as the above laminating, application and deaeration is effected. Thus, a joint pipe for a bent section the inner circumference of which is precise round can be easily obtained.</p> |
