开模是break the mould,我们说open the mould外国人也明白。名词是die sinking或mould unloading.如果你的意思是要开一副模具、做一副模具那可用to make a mould.例:模具结构中采用了定模强制脱模,顺序开模,滑动型芯延时顶出等机构。Development of injection mould with angled slide block for sequentialcore-pulling and delayed ejection; 我公司可根据客户要求开模订制。Our company can according to customer's custom mold.