Manufacturing method of pump shell of nuclear main pump

The invention discloses a manufacturing method of a nuclear main pump shell, relates to the technical field of nuclear power station equipment manufacturing, and mainly aims to obtain the nuclear main pump shell which is complete in pressure-bearing structure and uniform in internal structure. According to the main technical scheme, the manufacturing method of the pump shell of the nuclear main pump comprises the steps that shape information of the pump shell is obtained; forging the steel ingot according to the shape information to form a blank material; carrying out first heat treatment on the blank material; and after-treatment is conducted on the blank material subjected to the first-time heat treatment, so that the pump shell is formed. 本发明公开了一种核主泵泵壳的制造方法，涉及核电站设备制造技术领域，主要目的是得到承压结构完整，内部组织均匀的核主泵泵壳。本发明的主要技术方案为：该核主泵泵壳的制造方法，包括获取所述泵壳的形状信息；根据所述形状信息，对钢锭进行锻造，以形成毛坯材料；对所述毛坯材料进行第一次热处理；对所述第一次热处理后的所述毛坯材料进行后期处理，以形成所述泵壳。