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发明公开
CN101837501A 超超临界汽轮机12%Cr钢高中压转子轴颈堆焊方法 有权 转让

超超临界汽轮机12%Cr钢高中压转子轴颈堆焊方法
摘要：
超超临界汽轮机12%Cr钢高中压转子轴颈堆焊方法，涉及一种堆焊方法，特别是涉及一种超超临界汽轮机12%Cr钢高中压转子轴颈堆焊方法。本发明为解决超超临界汽轮机12%Cr钢高中压转子轴颈和轴承表面部位发生机械粘着磨损的问题，堆焊方法如下：一、对毛坯转子的第一轴颈和第二轴颈分别进行坡口车削加工；二、对车削面进行着色探伤；三、将毛坯转子装配到堆焊专用设备上；四、对转子轴颈的待堆焊表面进行预热；五、对待堆焊表面实施堆焊；六、对转子去应力热处理；七、对堆焊后的转子进行车削精加工；八、对精加工后的转子进行无损探伤检验。本发明适用于对超超临界汽轮机12%Cr钢高中压转子进行堆焊。
摘要（英）：

The invention relates to a surfacing method, in particular to a surfacing method of a 12-percent Cr steel high and middle pressure rotor journal of an ultra supercritical steam turbine, solving the problem of mechanical adhesive wear of the surfaces of the 12-percent Cr steel high and middle pressure rotor journal and a bearing. The surfacing method comprises the following steps of: firstly, respectively turning a first journal and a second journal of a blank rotor in a groove mode; secondly, carrying out dye inspection on a turning surface; thirdly, assembling the blank rotor to a special surfacing device; fourthly, preheating a surface to be surfaced of the rotor journal; fifthly, surfacing the surface to be surfaced; sixthly, distressing and heating a rotor; seventhly, turning and finishing the surfaced rotor; and eighthly, carrying out nondestructive inspection detection on the finished rotor. The surfacing method is used for surfacing the 12-percent Cr steel high and middle pressure rotor of the ultra supercritical steam turbine.

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