Design Of Side Head Polishing Special Complete Equipment Of Nuclear Reactor Internals

The head of nuclear power is one of the most difficult type of forging productsmanufactured nuclear large forgings, which belonging to the nuclear safety equipment. Itsshape is spherical, large size, large allowance, complicated process, long production cycle, thenozzle hole flanging forming, it was integrated structure with the head, and the small radius ofcurvature of the circular surface intersects with the outer surface of the head. Manufacturing,testing requirements, forgings uniformity demanding, poor cooling conditions of heattreatment, easy deformation, high precision of the overall shape of head.In the manufacturing process of nuclear power head, it is necessary to take care of theperformance indicators of the head meet the requirements,but also improves the productionefficiency, which countries are exploring new processing method. In this paper, wedeveloped a set of nuclear power reactors within the component side of the head machiningpolishing equipment based on the CRTSⅡtrack plate CNC grinding machine of Pushi driveCo. Ltd of Yibin Wuliangye Group. Meet the nuclear side of the head processing technic onthe basis of the text used in a large overhead gantry as the main structure of the machine, andthe transmission principle discussed in more detail. Processing difficulties of the nuclearpower reactors within the component side of the head, the layer cutting method, supplementedby other processing methods to process and the manufacturing strategy of the nuclear side ofthe head. Select an optimal machining path to determine the fixture, processing area andprocess basis, allowance and tool types, parameters, and made a processing error analysis.Large NC rotary table design, with the machine tool to realize five axis NC machining of sidehead, and introduced in detail the mechanical structure, measuring system, lubrication systemand electrical control system. This paper uses the SIEMENS840D operating system withremote function, can realize the fault diagnosis of machine tools in the through remotenetwork, analyzes the main interference source, and puts forward the corresponding method.The special machine tool can significantly improve the processing efficiency, surfacegeometric accuracy and precision of the nuclear power side of the head,. Not only can solvethe key equipment are in urgent need of China’s third generation of nuclear powerdevelopment, but also provides some reference value for the heavy or super heavy equipmentresearch and manufacture.