Sintered Flux
Sintered powder is a powder produced at low temperatures and contains special deoxidizers. It ensures precise reactions in the weld pool.
Physical-Chemical Mechanism
Sinter powder is produced by a thermal treatment at temperatures below the melting point. It contains special chemical additives that bind oxygen from the weld pool and prevent pores from forming.
Metallurgical Relevance & Risks in Welding
Using sinter powder reduces the number of pores in the weld and improves toughness. If the powder isn't used correctly, it can lead to uneven processing or excessive hardness, posing risks to mechanical strength.
Workshop Practice & Instructions
Use sinter powder for welding jobs where high toughness and low porosity are required. Make sure the powder is mixed correctly and the temperature in the weld pool stays below the melting point. Too high a temperature can cause the powder to be ineffective.