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探讨了Ｂ２２ＺＫ４０ＳｉＭｎＣｒＮｉＭｏＡ新型钎杆的不同热处理工艺，经过工业考核，确定了最佳热处理工艺，提高了钎杆的使用寿命，促进了其推广应用。
The different heat treatment processes of B22ZK40SiMnCrNiMoA new drill rod are discussed. After the industrial assessment, the best heat treatment process is determined, the service life of the drill rod is increased, and the popularization and application of the drill rod is promoted.