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A3HG7 BK 35玻纤增强 低温韧性PA66 Ultramid 齿轮 缸盖 

Ultramid A3HG7是一种聚酰胺66增强材料，含有的填充物为35% 玻璃纤维增强材料。它在低温下具有良好的韧性、硬度、高刚性、高机械强度、刚度、热稳定性、良好的冲击强度和良好的加工性能。该牌号对化学品、热润滑剂和热水、燃料、液压油和冷却剂、制冷剂、染料、油漆、清洁剂、脱脂剂、脂肪族和芳烃以及许多其他溶剂具有出色的耐受性。与许多无定形塑料相比，它耐腐蚀、耐盐和碱的水溶液以及应力裂纹的形成。它具有良好的弹性和介电性能，高耐热老化性，高尺寸稳定性，高蠕变强度和良好的滑动摩擦性能。Ultramid A3HG7采用注塑成型加工。它用于齿轮、电磁阀外壳、电缆附件、汽车歧管和气缸盖盖以及电气绝缘部件。

Ultramid A3HG7 is a polyamide 66 reinforced with 35% glass fiber. It provides good toughness at low temperatures, hardness, high rigidity, high mechanical strength, stiffness, thermal stability, very good impact strength and good processability. This grade exhibits outstanding resistance to chemicals, hot lubricants and hot water, fuels, hydraulic fluids and coolants, refrigerants, dyes, paints, cleaners, degreasing agents, aliphatic and aromatic hydrocarbons and many other solvents. It is resistant to corrosion, to aqueous solutions of salts and alkalis and to stress-crack formation compared to many amorphous plastics. It possesses good elastic & dielectric properties, high heat-aging resistance, high dimensional stability, high creep strength and excellent sliding friction properties. Ultramid A3HG7 is processed by injection molding. It is used for gear-wheels, solenoid valve housings, cable attachments, automobile manifolds and cylinder head covers as well as for electrical insulating parts.