The manufacture of the tower clock requires multi-part combination welding, 45 degree chamfering of all the welding joints of the tower clock needle scale and skeleton, grinding and leveling of the outer plane welding joints, electrostatic spraying color, fluorocarbon anticorrosive treatment. Including the whole steel skeleton welding, anti-corrosion and anti-rust treatment, access door, access door support, movement support production.
In the actual maintenance of the tower clock, the repair of some damaged parts also needs to use different welding skills, which are commonly used:
1, electrode arc welding: welding with manual operation of the electrode arc welding method. The stable burning arc established between the electrode and the weldment is used to melt the electrode and the weldment, so as to obtain a strong welded joint. It is gas-slag combined protection.
Main features - flexible operation; Low assembly requirements for welded head; Wide range of weldable metal materials; Low welding productivity; Strong dependence on weld quality (depends on the welder's operating skills and field play).
2, submerged arc welding (automatic welding) : arc burning under the flux layer. Using the heat generated by the burning arc between the wire and the weldment, the wire, flux and base material (weldment) are melted to form a weld. It is slag protection.
Main features - high welding productivity; Good weld quality; Low welding cost; Good working conditions; It is difficult to weld in spatial position; High quality requirements for welding parts assembly; Not suitable for welding thin sheets (welding current less than 100A, arc stability is not good) and short welds.
3, carbon dioxide gas welding (automatic or semi-automatic welding) : the use of carbon dioxide as a protective gas of the fusion arc welding method. It is gas protected. Main features - high welding productivity; Low welding cost; Small welding deformation (arc heating concentration); High welding quality; Simple operation; High spatter rate; It is difficult to weld with AC power; Poor wind resistance; Non-ferrous metals that are easily oxidized cannot be welded.
The above content is to explain in detail to you about the welding process of tower clock maintenance, I believe that everyone has further study and understanding. If you want to learn more, please stay tuned.
