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冰球刀塑料刀托注射模型腔形状复杂,投影面积大,采用通常的机械加工方法很难加工,且制模的成本高,周期长。本文采用Zn—22％Al合金超塑性挤压成形的方法成功地制造出此模具。此法制模成本低,周期短,非常适于塑料件产品更新换代的需要,型腔精度高,尤其是型腔的表面光洁度更高,完全达到了设计要求。该型腔模的投影面积已大大超过了英国MlSA专业模具公司所能生产的同类型型腔模的尺寸。该工艺方法的研制成功,为大型塑料件模具生产开辟了新的途径。
Ice hockey knife Plastic injection mold cavity shape complex, large projection area, the use of the usual mechanical processing is difficult to process, and the high cost of molding, long cycle. In this paper, Zn-22% Al alloy superplastic extrusion method to successfully create this mold. The low cost of the legal model, a short cycle, ideal for replacement parts of plastic products, the cavity accuracy, especially the cavity surface finish higher, fully meet the design requirements. The projected area of the cavity mold has greatly exceeded the British MlSA professional mold company can produce the same type of cavity mold size. The successful development of the process has opened up new avenues for the production of large plastic molds.