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采用轴向/环向缠绕法代替螺旋/环向缠绕法制造玻璃钢管,在相同壁厚情况下,使承受弯曲的能力有所提高。同时,也减少缠绕过程中必须连续调整缠绕角的麻烦。 为制造内径为100毫米的固体火箭发动机壳体,采用E玻璃纤维和聚酯树脂,因后者对固体推进剂的化学稳定性好。发动机壳体用热塑性塑料作衬里。芯模表面经镀铬磨光处理。 设计时,先用网格理论进行分析,而后用连续理论进行校核。 为实现轴向缠绕,在管的尾端装有带“销子环”的法兰,沿其周围布有60个销
The use of axial / circumferential winding instead of spiral / loop winding manufacturing of glass fiber reinforced plastic pipe, in the same case of wall thickness, the ability to withstand bending has been increased. At the same time, it also reduces the trouble of continuously adjusting the winding angle during the winding process. To manufacture solid rocket motor housings with an internal diameter of 100 mm, E-glass fibers and polyester resins are used because of their good chemical stability to solid propellants. The engine housing is lined with thermoplastic. Core surface chrome polished finish. Design, the first use of grid theory analysis, and then use continuous theory to check. For axial winding, a flange with a “pin ring” is fitted at the end of the pipe, around which 60 pins