it can decrease the production of air hole by controlling the stableness of the velocity when female die contacted the liquid of aluminium.
摇盘凸模接触到铝合金液时,控制加压速度平稳一些,可减少气孔的产生。
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桿和凹模,于下 架梁上安装有其一端部至少有一个肩凸的型芯。
the female die was designed movable but the male die was fixed.
该模具将凹模设计成活动式,凸模固定。
it has been introduced that cracking defect of female die cushion of forging machine has been analysed and its preventive heat treatment technology.
介绍了锻压机垫板的热处理工艺改进措施,从而防止了其开裂缺陷,提高了使用寿命。
the paper has introduced the fabrication technics process and concrete technics requirement of grp boat mould, and analyzed the fabrication technics of grp boat's formpiston and female die in detail.
the analysis shows that the friction factor between female die and panel has the greatest influence on forming of automotive roof cover;
结果表明,凹模与板料之间的摩擦因数对该汽车顶盖的成型影响最大;
two parts whose drawing coefficient are 0. 39 passed through testing to production. it proved that taper female die is used up in deep drawing.
拉深系数为0.39的两种零件,从试制到生产,证明了锥形凹模是可以实现深拉深的模具。
cold upset female die of fillister head is the key mold in the manufacturing process of heading bolt.
冷镦圆头凹模是冷镦螺栓生产过程中的关键模具。
the experimental results show that the fine-grained 5083 al alloy sheets have good deep drawing formability when temperature of female die is higher than 250℃.
实验结果表明:细晶5083铝合金板料在凹模温度为250 ℃以上具有良好的拉深成形能力。
it mainly includes a hydraulic pressure main engine, a stripping power supply, a male die, two female die composite units together with a lining board and a parison push-out mechanism.