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随着冷冲压新工艺、新技术的不断发展,聚氨酯橡胶作为一种新型的模具材料在冷冲压技术领域里已显示出巨大的优越性。尤其在变形工艺中,用聚氨酯橡胶取代了传统的钢制凸模或凹模后,不仅解决了复杂型面模具设计、制造所面临的困难,而且在工艺技术上超越了传统钢制模具所能达到的成型范围。下面介绍两例聚氨酯橡胶在较高精度零件成型中的应用情况。一、联焰管外径尺寸校正联焰管的结构形状和尺寸要求如图1所示。此零件筒体外
With the development of new cold stamping technology and new technology, polyurethane rubber has shown great advantages in the field of cold stamping as a new type of mold material. Especially in the deformation process, the polyurethane rubber to replace the traditional steel punch or die, not only solved the complex mold design, manufacturing difficulties, but also in the process technology beyond the traditional steel mold can Reached the molding range. Here are two cases of polyurethane rubber molding parts in the application of higher precision. First, the diameter of the cross-flame tube Correlated flame tube shape and size requirements shown in Figure 1. This part cylinder outside