| 摘要 |
PROBLEM TO BE SOLVED: To provide a tube base material for lining capable of forming the lining of the inner surface of the tube having a larger pressure resistant strength by curing an impregnated resin and easily closely contacting with the inner surface of the tube having an axially large tensile strength and a tube for the lining. SOLUTION: The tube base material is obtained by laminating an inner layer 1 and an outer layer 2. In this case, the layer 1 is obtained by sequentially laminating from the inside an axial glass roving 4, a glass chopped strand mat 5, a circumferential glass roving 6, a glass felt 7 and an axial glass roving 4, and the outer layer 2 is obtained by sequentially laminating from the outside an axial glass roving 4, a glass chopped strand mat 5, a circumferential glass roving 6, a glass felt 7 and an axial glass roving 4. Thus, the axial tensile strength and a pressure resistant strength from the circumference are improved by the roving 4 and the roving 6. |
