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日本最近采用技术强项组合的方法开发成功一种住宅用的玻璃钢门。 一、组合的技术 开发这种玻璃钢门组合了三家公司的专有技术。 1.A公司的低压SMC成型技术 该公司的SMC成型材料作业性好,可用10～30kg/cm~2的压力成型,加压时间仅需90s(2mm板),成型收缩率仅为0.01％。成型后的玻璃钢板的弯曲强度为160MPa,拉伸强度为65MPa,缺口冲击强度为45kJ/m~2。 2.B公司的硬质发泡聚氨酯注射技术 该
Japan has recently adopted a method of combining technical strengths to develop a residential fiberglass door. First, the combination of technology Develop this fiberglass door combination of the three companies’ proprietary technology. 1.A company’s low-pressure SMC molding technology The company’s SMC molding materials work well, can be used 10 ~ 30kg/cm ~ 2 pressure molding, pressing time only 90s (2mm board), mold shrinkage rate is only 0.01%. The molded glass plate had a flexural strength of 160 MPa, a tensile strength of 65 MPa, and a notched impact strength of 45 kJ/m 2 . 2.B company’s rigid foaming polyurethane injection technology