我厂精铸车间采用熔模铸造方法生产打煤机、制砖机上的圆锥齿轮,铸造齿形尺寸精度可达9～1O级,齿形表面粗糙度达Ra12.5～Ra6.3,较好地满足了设备的传动精度及零件使用要求。 熔模铸造圆锥齿轮,关键是设计和制造压型。圆锥齿轮压型的型腔形状是内伞齿形。众所周知,制造内圆锥齿轮,普通机械加工方法很难加工。我们采用低熔点合金铸造齿形压型。这种工艺有方便实用、生产周期短、成本低的特点。 I plant casting workshop using investment casting method to produce coal, brick machine bevel gear, casting tooth shape size accuracy up to 9 ~ 1O level, tooth surface roughness Ra12.5 ~ Ra6.3, better To meet the equipment’s transmission accuracy and parts requirements. Investment casting bevel gear, the key is to design and manufacture of pressure type. The shape of the bevel gear is of the inner bevel shape. As we all know, the manufacture of internal bevel gear, machining is difficult to process. We use low melting point alloy cast tooth profile. This process is convenient and practical, short production cycle, low cost.