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用纤维增强材料制造耐高压气瓶(内压容器)多采用纤维缠绕法。因为纤维增强塑料在高压下气密性不好,所以需要有气密性好的内衬,内衬材料可以是金属(铝、不锈钢等),也可以是非金属材料(如橡胶等)。高压气瓶一般是在使用压力下或在反复充压——卸压的条件下长时间工作,因此要求爆破强度高(安全系数一般要求3～6或更大),疲劳性能好(不渗漏),重量也有限制。
Fiber reinforced materials used to manufacture high pressure gas cylinder (internal pressure vessel) and more use of fiber winding method. Because of the poor air tightness of the fiber-reinforced plastic under high pressure, airtight lining is required. The lining material can be metal (aluminum, stainless steel, etc.) or non-metal material (such as rubber). High-pressure gas cylinders are usually operated for a long time under the pressure of use or under repeated charge-pressure relief conditions, thus requiring high burst strength (the safety factor generally requires 3 to 6 or more), good fatigue performance (no leakage ), The weight is limited.