The effect by pre-plug compression rate on formation of the cavity was investigated in a comparative method with step-down test samples of HCC billet and rolled bloom respectively.
用塔形试样对比研究了水平连铸管坯和轧制管坯穿孔时顶头前压缩率对孔腔形成的影响。
2
Design of compression mold and manufacture methods of power supply plug-in socket are introduced separately. This mold adopts the structure including one cavity per mold.
本文介绍了电源插座压制成形模具的设计与制造方法，该压制模采用一模一腔的结构。
3
The upper part of the cavity container is provided with a liquid adding hole and a hole plug.