Degree of Deoxidation Determination
The determination of the deoxidation degree measures the oxygen content and the effectiveness of the deoxidizer in the steel. This is crucial for avoiding bubble formation during solidification.
Physical-Chemical Mechanism of Action
Deoxidation degree measurement determines the residual amount of unbound oxygen and the effectiveness of the deoxidizing agent used. A high degree of deoxidation means less oxygen remains in the steel, leading to a cleaner weld.
Metallurgical Relevance & Risks in Welding
A low degree of deoxidation can cause porosity and poor structure. This increases susceptibility to cracking and reduces weld strength.
Shop Practice & Action Instructions
Before building up the weld pool, the degree of deoxidation must be determined. A typical oxygen content should be below 50 ppm. Use high-quality deoxidizers like silicon or titanium steel and ensure they are correctly dosed.