Hand-held induction brazing machine for copper tube of mobile air conditioner

Hand-held induction brazing machine for welding copper tubes of mobile air conditioners is an efficient, accurate and environmentally friendly welding equipment. The following is a detailed introduction about it:

principle of operation

Based on the principle of electromagnetic induction, the alternating magnetic field is generated by the induction coil, so that the induced current is generated in the copper tube, and the current is converted into heat energy under the action of copper tube resistance, so that the solder is melted and the copper tube is welded.

advantage

High efficiency and rapidity: High-frequency induction heating can make the copper tube reach the required temperature in a short time, and the welding can be completed in a few seconds to ten seconds, which greatly improves the working efficiency compared with the traditional welding method.

High welding quality: uniform heating can make the weld joint have high strength and good air tightness, reduce welding defects such as porosity and cracks, and ensure welding quality.

Flexible operation: hand-held design is convenient for operators to weld at different positions and angles, especially suitable for welding copper pipes of mobile air conditioners in narrow or complex environments.

Energy saving and environmental protection: electromagnetic induction heating is adopted, without burning fuel, which reduces energy consumption and environmental pollution, and has concentrated heat and small heat affected zone.

Simple operation: the equipment operation is relatively simple, and workers can use it skillfully after simple training, which reduces labor cost and labor intensity.

Key points of selection

Power selection: according to the size of copper tube of mobile air conditioner and the requirement of welding speed. Generally speaking, the power of 5kW-15kW is suitable for welding copper tubes of common size.

Frequency selection: For copper tube welding, it is recommended to choose a medium-high frequency range, such as 30kHz-100kHz, to ensure uniform heating and better welding effect.

Function configuration: equipment equipped with temperature control and automatic interface can be selected, which is convenient for accurate control of welding temperature and integration into automatic production line to improve production efficiency and welding quality.

Welding operation steps

Preparation: Clean the welding part of copper tube, remove oxide layer and oil stain, apply brazing flux to the welding part, and place appropriate brazing filler metal, such as silver brazing filler metal or copper-phosphorus brazing filler metal.

Heating welding: aim the induction coil of the hand-held induction brazing machine at the welding part of the copper tube, start the equipment to heat until the solder melts and evenly fills the weld, and the heating time is adjusted according to the size of the workpiece and the power of the equipment.

Cooling inspection: after welding, let the copper tube cool naturally, and then check the weld quality to see if there are defects such as air holes and cracks, so as to ensure the welding quality is qualified.