Zinc-based alloy brazing process for heat exchanger of gas water heater

The invention relates to the technical field of processing a heat exchanger of a gas water heater, and discloses a zinc-based alloy brazing process for the heat exchanger of the gas water heater. The main technical characteristics include that zinc-based alloy brazing is carried out on workpieces after oil removing, washing and activation are carried out on the workpieces; through excellent filling performance of alloy under a fusion state, the gaps between heat collecting sheets and copper pipes in the heat exchanger are effectively filled, and the effective heat exchange surface area of heat transfer is enlarged; at the same time, a layer of magnesium-zinc-titanium alloy is formed on the surface of each heat collecting sheet and each copper pipe, and the alloy has a high heat conductivity coefficient, so that the heat efficiency is further enhanced, and at the same time, the anti-corrosion performance is improved. The zinc-based alloy brazing process has remarkable effects on the improvement of the heat efficiency of the heat exchanger of the gas water heater, and the magnesium-zinc-titanium alloy also has excellent performances, such as excellent heat conductivity, higher hardness and abrasion resistance, corrosion resistance, high weather resistance and aging resistance.