Bonded and Fused Flux Blend
Combined welding flux consists of sintered and fused powder particles, combining flowability with reaction control. It optimizes physical pick-up conditions and metallurgical effects in SAW welding.
Physical-Chemical Mechanism of Action
Combination welding flux consists of a mixture of sintered powder particles, which are controlled through a careful manufacturing process, and fused powder particles. This combination allows for optimal flowability during the welding process and precisely controls reactions in the weld pool.
Metallurgical Relevance & Risks in Welding
The use of combination welding flux improves the physical conditions by ensuring that the powder particles are evenly distributed on the workpiece. This leads to a homogeneous weld and reduces the likelihood of porosity and cracks. However, an incorrect selection or manufacturing process of the flux can lead to uneven welds and a reduction in mechanical properties.
Workshop Practice & Instructions
To use combination welding flux effectively, it is important to ensure that the flux is correctly manufactured and that the flowability is optimal. The temperature and time of the weld pool should be precisely maintained to ensure a homogeneous reaction. Recommended values for the melting time are 20-30 seconds, depending on the material type and amount of flux.