2results about How to "Solve welding deformation" patented technology

The utility model discloses a heat exchanger for heat pump circulation. The heat exchanger comprises a base tube and a plurality of fin sets detachably arranged on the base tube. The fin group comprises a first fin and a second fin; a plurality of buckling parts are arranged between the first fins and the second fins, the first fins and the second fins are assembled and disassembled from the base tube through the buckling parts, lossless assembling and disassembling, interval adjustment and local replacement of the fins are achieved through the design of the modularized fin set, the manufacturing efficiency is improved, and the maintenance cost is reduced.

This invention provides a method for constructing a pile-type crane base, comprising the following steps: constructing a flat outer shell plate and marking a first installation reference line on the flat outer shell plate; prefabricating multiple independent arc-shaped plates according to the layout of the entire arc-shaped outer shell plate, wherein the arc-shaped plates have processing allowances during material cutting; prefabricating a top ring component and marking a second installation reference line on the top ring component; constructing a main frame and setting a central column at the center of the main frame; hoisting multiple flat outer shells and the top ring component onto the main frame respectively, adjusting their positions, and welding them after meeting the accuracy requirements; hoisting and positioning multiple vertical reinforcing ribs according to the first and second installation reference lines; hoisting the arc-shaped plates in sequence, cutting processing allowances, adjusting accuracy, and then welding multiple arc-shaped plates in a preset sequence to form an arc-shaped outer shell plate; welding the arc-shaped outer shell plate, horizontal structure, and vertical reinforcing ribs; and welding the arc-shaped outer shell plate and the flat outer shell plate.