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一、前 言 大型球铁拉伸模外形如图1和图2所示,铸件各重约5.5吨。最大外廓尺寸为2030×1950mm,平均高为515mm,型面为马鞍形,材质为QT50-5。
I. Introduction Large ductile iron die profile shown in Figure 1 and Figure 2, the casting weight of about 5.5 tons. The maximum size is 2030 × 1950mm, with an average height of 515mm. The saddle shape is made of QT50-5.