How to improve low-temperature impact resistance of 6MnDR test plates
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How to improve the low-temperature impact performance of 16MnDR test plates?
First is the selection of welding materials, to ensure their own low-temperature impact resistance. Next is weld process control: low wire energy and multi-pass welding. Post-weld heat treatment.
Firstly, when purchasing sheets, it is necessary to seek ones with a high AKV value; the sheets produced by large manufacturers generally have a much higher value than the standard. Secondly, proper control over the welding process is important
The most important aspect is controlling the base material, followed by welding, heat treatment, etc.