减应法气焊铸铁(也有称加热减应区法或气焊消减应力法),是我国焊接工作者从长期生产实践中总结的先进技术。这种方法的实质是,通过加热“减应区”或采取其它“减应”措施,使用一般的氧—乙炔焰和普通的铸铁气焊丝就能焊补复杂的铸铁件,不会 Reduction method Gas welding cast iron (also known as heating zone or gas welding stress reduction method), is China’s welding workers from long-term production practices concluded advanced technology. The essence of this method is that the use of common oxygen-acetylene flame and ordinary cast iron gas welding wire can be used to repair complex cast iron pieces by heating the “reduction zone” or other “reduction”