The structure of the saw blade brazing rack mainly includes the following parts:
Induction coil: The induction coil is usually made of a hollow copper tube and is used to generate a high-frequency electromagnetic field to heat the saw teeth and the substrate. The induction coil is cooled by water to prevent overheating.
High-frequency power supply: A power supply device that provides high-frequency current, connects the two ends of the induction coil, generates a magnetic field through high-frequency current, and heats the saw teeth and the substrate.
Cooling system: Including cooling water and air guns, etc., used to cool the induction coil and clean the dust and oil on the surface of the substrate. The cooling water circulates inside the induction coil, and the air gun is used to blow away the dust on the surface of the substrate.
Clamp: Used to fix the saw blade and saw teeth to ensure the stability of the position of the saw blade and saw teeth during the welding process.
Control system: Controls the operation of the high-frequency power supply and cooling system to ensure the stability and safety of the welding process.
The brazing process usually includes the following steps:
Preparation stage: Clean the surface of the saw blade and saw teeth to remove dust and oil.
Heating stage: The saw teeth and the base are heated by a high-frequency electromagnetic field to reach the brazing temperature.
Insulation stage: Maintain a certain temperature and time to ensure that the welding materials are fully fused.
Cooling stage: After welding is completed, cooling treatment is carried out to ensure that the welding part is firm.
Tempering treatment: Tempering treatment is carried out on the welding part to eliminate internal stress and prevent cracks and tooth popping.