1. Use a hammer and chisel first: fix the steel ring on a flat workbench, and then tap the solder joints or joints around the iron ring with a hammer and chisel until it starts to loosen.
2. Secondly, use scissors or pliers: If the iron ring can be bent, you can squeeze and twist the iron ring with scissors or pliers to gradually untie the connection point.
3. Then use oxyacetylene welding equipment: For the complex connection of steel ring and iron ring, it is necessary to use oxyacetylene welding equipment to heat and melt the joint, and then disassemble it.
4. Finally, pay attention to safety: in the process of disassembly, you must wear appropriate protective gloves and goggles to avoid injury.