Causes of excessive copper deposition in mesh belt furnace brazing

The specific reasons include high copper content, incorrect process parameters, furnace pollution, surface condition of parts and so on.

1. Too high copper content: If the copper content is too high during brazing, the molten copper will precipitate on the surface of the workpiece in redundant form after cooling, forming copper deposits.

2. Incorrect process parameters: If the process parameters (such as temperature, time, furnace speed, etc.). ) is incorrect, which may lead to uneven heat exchange during brazing and excessive copper deposition.

3. Pollution in the furnace: If the atmosphere in the mesh belt furnace contains too many oxides or other pollutants, it may react with copper, resulting in too much copper deposition.

4. Surface condition of parts: Surface roughness and cleanliness of parts will also affect copper deposition. If the surface is rough or contaminated, copper may deposit more easily.