大跨距直线塔受力大,制作精度要求高,塔脚结构复杂,加工时采用常规加工法、套模制作困难、加工精度难以保证。采用支架式塔脚套模、一次定位点装,不但形位尺寸定位可靠,并可利用支架套模进行刚性固定焊接,减少焊接变形,是一种较为合理的加工工艺方法。 Large-span linear towers are subjected to great force, require high production precision, and have complex tower legs. Conventional machining methods are used during processing, and the production of the molds is difficult and the machining accuracy is difficult to guarantee. The use of the bracket-type tower foot mold and one-time positioning point installation not only ensures the reliable positioning of the shape and position, but also utilizes the support frame mold to perform rigid fixed welding and reduces welding distortion, which is a more reasonable processing method.