The mold manufacturing is the key part in imprint lithography process, which includes electron beam direct writing, stepping molding, and the conversion from small mold to big mold.
采用电子束直写、步进制模、压印翻制的压印模具生产工艺，其模具的制造是目前面临的难点。
Based on the onflow theory, a 3-d model of fluids steel was established, calculation program developed the flow character of mold fluid steel on different nozzle conditions in beam blank c.
依据湍动能理论，本文建立了结晶器内钢液的三维湍流模型，开发了计算程序，研究了不同水口状态下异形坯结晶器中钢水的流动特性。
An ejector rod and a female die are fixed at the lower part of the upper beam, and a mold core is mounted on the lower beam. The end of the mold core has at least one shoulder.
于上架梁的下方固定有顶杆和凹模，于下架梁上安装有其一端部至少有一个肩凸的型芯。
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