In order to control the appropriate nitrogen content of steel and better meet the processing performance requirements of industrial wire rods， industrial tests were carried out in combination with Yonggang's 120-ton top-bottom reblowing converter→argon blowing station→refining furnace→eight-machine eight-flow billet continuous casting machine and production process conditions. On the basis of low-cost p

roduction， by adjusting the converter blowing， steel tapping process， refining and continuous casting production process， nitrogen content samples were taken at different production operation stages for analysis and exploration of the influence of different production processes and operating parameters on the content of molten steel ［N］， and then through solidification converter smelting later oxygen pressure 0.95 MPa-1.0 MPa， pressing gun time 50 s-70 s， ensuring the conversion furnace inversion rate and appropriate carbon content at the end of the converter， weak deoxidation process of molten steel during tapping process， continuous casting machine protection pouring and other operational measures The content of ［N］ in different steel grades of molten steel was controlled in each production process， and the

w

［O］ of non-refined low-carbon steel finished products is controlled within （110~150） × 10

-6

，

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［N］ is controlled within 27 × 10

-6

， and the finished product

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［N］ of desulfurization steel is controlled below 38 × 10

-6

， which was an average decrease of 17.8 × 10

-6

compared to before the process improvement， and the product quality stability was well controlled.