泥芯在造型过程中的作用是造好型后扣箱时依芯头空穴落泥芯,以形成铸件形状所需要的型腔,这是泥芯通常的用法。然而可以把泥芯在成型后通过一些措施使它达到一定强度(如水玻璃砂可通过吹二氧化碳硬化,或用烘干泥芯,甚至于可以直接使用自硬砂),舂外型时作为外型的一部分直接埋入砂中(当然,此泥芯和外型之间需用画线方法或做出凹凸形状进行定位),造好型取模时,光取出木模,泥芯留在型内构成铸件外形的一部分。为了区别 The role of mud core in the modeling process is to make a good after the deduction box according to the core cavity of the core, in order to form the shape of the casting cavity, which is the normal usage mud core. However, the mud core can be shaped to achieve some strength through some measures (such as sodium silicate sand can be hardened by blowing carbon dioxide, or dried mud core, or even can be used directly from the hard sand), 舂 appearance as the appearance (Of course, this mud core and the appearance of the need to draw line method or to make uneven shape positioning), make a good mode, the light removed wood, clay core left in the model Form a part of the shape of the casting. In order to distinguish