论文部分内容阅读
Y_x形橡胶密封圈是利用内、外唇起密封作用的,所以首要是保证唇边的尖锐和完整,使之有良好的密封性。故分模面必须选在非工作部位,避开密封唇边(即工作部位).我们经过不断试验和改进,目前已设计出一套结构较理想的硫化模具。其结构特点是:①分模面选在非工作部位,避开了工作部位,内,外唇边直接在模芯和中模上车出,不产生分模胶边,有效地保证了密封性能;②产品的公称直径等于或大于90毫米,做成单型腔模具,公称直径
Y_x-shaped rubber ring is the use of inner and outer lips from the sealing effect, so the first is to ensure the sharp and complete lips, so that there is a good seal. Therefore, the parting surface must be selected in the non-working parts, to avoid the sealing lip (ie work site.) We have been continuously tested and improved, has designed a set of ideal structure of the curing mold. Its structural features are: ① parting surface selected in the non-working parts, to avoid the working parts, the inner and outer lip directly in the mold core and the mold on the car, do not produce separate plastic edge, effectively ensure the sealing performance ; ② product nominal diameter equal to or greater than 90 mm, made of single-cavity mold, nominal diameter