杜邦材料应用.ppt

杜邦材料应用简述 材料的分类 非结晶材料： PS，PVC，SAN PC，PPO，ABS，PMMA PSU，PES，PPSU 结晶型材料： PP，PE PA，POM，PET，PBT PTFE，LCP，PEEK 工程塑料的通常定义 耐热温度100度 拉伸强度50MPa 弯曲强度2400MPa 例如：POM, PA, PBT,PET……. 为何选择工程塑料 较金属经济，节省成本 设计更灵活 能量消耗较低 良好的电气性能 比重轻 耐化学品腐蚀 在较大范围的温差及耗损情况下，仍具有卓越性能 高实用价值 Delrin的主要特性 机械强度和刚度高 韧性和抗反复性冲击 耐疲劳 对湿气，汽油，溶剂有极佳的抗力 极佳的尺寸稳定性 良好的弹性和抗蠕变性 自润滑性 Delrin? -齿轮的首选材料 材料选择及原因 ??? 特灵?聚甲醛提供设计所要求的强度，硬度，尺寸稳定性，润滑性 精密齿轮为高质量打印提供平稳、如一的运转 打印机中使用的齿轮组包含11个由杜邦Delrin?聚甲醛树脂注塑成型的齿轮 材料选择及理由 正齿轮使用的树脂是Delrin? 500P，螺旋型齿轮使用的树脂是Delrin? 500CL。这两种树脂都满足对形状稳定性、高强度、低摩擦和磨损、高成型生产率的要求。制成螺旋型齿轮的Delrin? 500CL树脂在高PV负载下和不锈 钢轮、塑料轮相接触，符合对低磨损和摩擦提出的更为苛刻的要求。 Transformable Inline Roller/Iceskate uses two DuPont Engineering Polymers Description Removable plate for Inline Roller/ Iceskate. Benefits Working together, this application demonstrates the combination of design flexibility and functionality. The same patented removable plate system enables quick and easy change from in-line rollers to iceskates. When not skating the shoe, can be used in a perfectly normal manner for walking. Materials Used Zytel? ST used for the in-line and iceskate plate support was chosen for its very good elongation that can bear high mechanical and dynamic loads. It also has an excellent balance of stiffness and toughness. Zytel? ST also adheres very well to the stainless steel blade and its excellent impact and abrasion resistance withstands all the knocks and scrapes to which iceskates are subjected. Delrin? is used for the interfacing part that is positioned between the support structure and the shoe because it has excellent rigidity. Its toughness ensures a reliable attaching and detaching of the blade/rollers support from the shoe. Delrin? -拉链 应用描述：拉链 材料选择及原因： DELRIN的耐磨性，自润滑性 Delrin?-打火机配件 应用描述：打火机配件 材料选择及原因： DELRIN的耐磨性，耐温性能 Delrin? -传送链板 应用描述：啤酒传送链板 材料选择及原因： DELRIN的耐磨性，低摩擦的特性减少产品倾倒的危险 Delrin? -扣件 材料选择及原因 韧性 耐疲劳 自润滑性 Delrin? -刀具