宁波市鄞州美图美金属制品有限公司

宁波市美图美金属制品有限公司密封部：

        无石棉垫片.材料：以芳纶纤维、无石棉矿物纤维、人造纤维、合成耐油橡胶、性能填料，经热辊压制，硫化制成。
用途：适用于各种摩托车发动机及齿轮箱装配用密封垫片。
温度：250℃
压力：2.0MPa以下 ITEMS 项目TEST CONDITION 试验条件BLW2002 Tensile strengthMpa≥ASTM F1529 Density 密度g/cm3-1.5±1.8 Compressibility压缩率%ASTM F36J12±5 Recovery回弹率%≥ASTM F36J45 Flexibility柔软性-Bend 180° on the bar with diameter which is 12 times than the sample thickness.
在直径为试样厚度12倍的圆棒上弯曲180度NO Crack
无裂纹 Creep relaxation蠕变松弛率%≤ASTM F3835 corrosion腐蚀性Place in steam of distilled water at 70℃±2℃ for 24h with hard aluminium.
与硬质铝放置在70℃±2℃的蒸馏水蒸汽中24小时。NO Corrosion
无腐蚀 Sealability 气密性-Keep for 10min in water at room temperture & pressure with air pressure 0.2~0.25MPa.
在常温常压水中保持10分钟，空气压力为0.2MPa-02.5MPa，空气压力为0.2MPa-0.25MPaNo bubble
无气泡 Decrease rate in tensile strength 横向拉伸强度减少率%≤Immersed into the 20#aviation libricants oil （conform requirement by GB/T440）for 5h at 150℃±2℃，then pick up and keep it for 30min at 15℃-30℃
温度150℃±2℃，在符合GB/T440要求的20号航空润滑油中浸泡5h后取出，在15℃-30℃下放置30分钟40 Thickness increase
浸油增厚率%≤20 Variation in appearance
浸油外观变化-No bubble
无气泡 Tensile strength
横向拉伸强度Mpa≥Immersed into the 75# aviation iubricants oil（conform to the 热气ore，emt by GB 1737）or in the 3# jet fuel （conform to rhe requirement by GB 6537）for 5h，then pick up and keep it for 5min.
温度15℃-30℃，在符合GB1737要求的75号航空润滑油或符合GB6537要求的3号喷气燃料中浸泡5h后取出，放置5分钟7 Thickness increase
浸油增厚率%≤20 Flexibility柔软性-NO Crack
无裂纹 Sealability of oil
油密封性Mpa15℃-30℃，75# aviation Lubricants oil （conform to the requirement by GB1737）or 3#jet fuel （conform to the requirement by GB6537）in 15MPa ，within 30 min
温度15℃-30℃，介质为符合GB1737要求的75号航空润滑油或符合GB 6357要求的3号喷气燃料，压力为15MPa，保持30分钟8 -fully Sealed完全密封 Working Temperature
工作温度℃Instant/Normal
瞬间/正常300/-30~250 Working Pressure
工作压力MpaMax/Normal
最大/正常4.0/2.0