Sharing China-Made with Global Customers
Sharing China-Made with Global Customers
Inthe welding process, the metal to be welded undergoes heating,melting, subsequent solidification and continuous cooling due to heatinput and transmission. This is called the welding thermal process.
Theprocess of welding heat runs through the whole welding process, andaffects the welding quality and welding productivity through thefollowing six functions!
1.Whenapplied to welded metal parts, the heat distribution and size statedetermine the size and shape of the molten pool.
2.Theoccurrence of metallurgical reaction in welding pool is closelyrelated to the time of thermal action.
3.Thechanges of welding heating and cooling parameters affect thesolidification of molten pool metal, and the welding heat affects themicrostructure transformation of metal. Therefore, the welding heatand the microstructure of welding heat affected zone are related tothe thermal action.
4.If the welding part is heated unevenly, it will lead to uneven stressstate and stress deformation.
5.Themetallurgical reaction and stress factors under the action of weldingheat will lead to cracks and other metallurgical defects.
6.Theefficiency of the welding input column determines the melting rate ofthe electrode.
Theefficiency of the welding input column determines the melting rate ofthe electrode. The metal in the welding pool is in a strong liquidstate. The heat transfer process inside the molten pool is mainly inthe form of fluid convection, while the form outside the molten poolis in the form of solid heat transfer, convective heat transfer andradiation heat transfer. Therefore, many heat transfer methods areinvolved in the and process of welding heat.
English
Español
