3results about How to "Eliminate Welding Defects" patented technology

This invention relates to the field of welding-related technologies, and in particular to a welding device for processing metal back panels of television sets. The device includes a welding box, a fixed frame, and a welding rack. The fixed frame is fixedly mounted on the top of the welding box, and the welding rack is movably mounted on the bottom of the fixed frame. A pushing welding assembly is installed inside the welding rack, which pushes the welding torch head within the assembly to move horizontally across the back panel surface, forming a continuous welding strip. The tilting lateral assembly of this invention achieves digital and programmable angle adjustment, with high precision and good repeatability, enabling it to perform automated welding of various complex welds such as flat fillet welds and vertical fillet welds. The single-point pressure assembly refines grains and releases thermal stress through mechanical impact, directly intervening in welding deformation and cold cracking hazards. The downward cleaning assembly ensures that every welding is performed on a contaminated surface, fundamentally eliminating welding defects such as porosity and slag inclusions caused by dust and oil.

The invention discloses railway station building steel structure welding equipment and a welding method, and relates to the technical field of steel structure welding. The railway station building steel structure welding equipment comprises a bottom plate, supporting pieces used for placing a cross beam are symmetrically arranged on the bottom plate, and a positioning piece capable of ascending and descending is arranged between the two supporting pieces; the positioning part is used for positioning and placing a vertical web member and an inclined web member which are welded between the two cross beams, a clamping assembly is arranged on the side wall of the supporting part in a penetrating mode, a linkage assembly is installed between the clamping assembly and the positioning part, a driving assembly capable of driving the cross beams to move is arranged on the supporting part, and the driving assembly is connected with the positioning part through an L-shaped frame. And in the descending process of the positioning piece, the L-shaped frame drives the driving assembly to descend and press the top of the cross beam. Automatic positioning, synchronous clamping and continuous welding of components are achieved, and the operation efficiency is greatly improved; tight attachment of welding surfaces is ensured through mechanical linkage, and the welding seam quality is remarkably improved; welding fume source purification is integrated, and the working environment is thoroughly improved.

The utility model relates to investment precision casting technical field discloses a disc type integrated runner frock, include: middle column pipe, first locking bolt, second locking bolt, first positioning pin, second positioning pin, third positioning pin, the slider of middle column pipe frock, the slider of middle column pipe frock sets up two, two the slider of middle column pipe frock passes through first positioning pin coaxial positioning connection. This disc type integrated runner frock realizes positioning and locking through multiple sets of positioning pin and locking bolt, replaces traditional multi -pass welding, and the inner runner is integrally formed with the upper and lower disc runner and middle column pipe, does not need to weld the inner gate and wax mould assembly link alone, and there is no misplacement, deviation risk in the assembly process, and the dismounting operation is simple and quick, reduces the manual labor intensity, promotes the production efficiency of runner production and mould combination, can guarantee the size consistency and stability of integrated runner simultaneously, adapts to the efficient production demand of aero -engine blade casting.