Production control method for reducing hydrogen content in steel of coastal steel mill
The invention relates to the technical field of steelmaking, in particular to a production control method for reducing the hydrogen content in steel of a coastal steel mill, which comprises the following steps: (1) strictly executing a waste steel baking system by a converter; (2) reducing the water...
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creator | TONG SHENGGANG DAI PING XU LI CAO YUNTAO ZHANG LIBIAO WANG XUEXIN LIU JIANWEI ZHAO DENGBAO JIA LEI XIE JING WANG PENGFEI CHEN CHANGYI NIU HONGBO WEN FUXIN HU QINDONG ZHAO YOUHU MA QIANG |
description | The invention relates to the technical field of steelmaking, in particular to a production control method for reducing the hydrogen content in steel of a coastal steel mill, which comprises the following steps: (1) strictly executing a waste steel baking system by a converter; (2) reducing the water content of lime and graphite carburant entering the furnace; (3) in the LF refining procedure, small-particle lime is evenly spread on the surface of the slag and baked at high temperature for 3-5 min, the small argon flow is controlled, submerged arc operation is well conducted during electric heating, and components are qualified after one-time adjustment; and (4) when the end point oxygen of the converter is greater than or equal to 600ppm, the dosage of small-particle lime is increased. According to the production control method, the hydrogen content of the LF single-linkage steel grade is controlled within 4 ppm, the hydrogen content of the LF + RH duplex steel grade can be controlled within 2 ppm, the hydrog |
format | Patent |
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subjects | CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING |
title | Production control method for reducing hydrogen content in steel of coastal steel mill |
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