• 专利标题:   Non-magnetic steel for improving corrosion resistance of water cooling jacket of submerged arc furnace, comprises carbon, silicon, manganese, phosphorus, sulfur, aluminum, molybdenum, titanium, chromium, titanium, iron and graphene.
  • 专利号:   CN114774793-A
  • 发明人:   LIU Z, LI Y, LU J
  • 专利权人:   SHANXI LONGDA JINKANG NEW MATERIAL CO
  • 国际专利分类:   C21C007/072, C21C007/10, C21D008/12, C22C033/04, C22C038/02, C22C038/04, C22C038/06, C22C038/22, C22C038/28, C22C038/38
  • 专利详细信息:   CN114774793-A 22 Jul 2022 C22C-038/02 202274 Chinese
  • 申请详细信息:   CN114774793-A CN10486503 06 May 2022
  • 优先权号:   CN10486503

▎ 摘  要

NOVELTY - Non-magnetic steel for improving corrosion resistance of water-cooled jacket of submerged arc furnace, comprises 0.16-0.18 wt.%, preferably 0.17 wt.% carbon, 0.95-1.15 wt.%, preferably 0.98 wt.% silicon, 23.5-24.6 wt.%, preferably 23.7 wt.% manganese, ≤ 0.03 wt.% phosphorus and sulfur (preferably 0.005 wt.% phosphorus and 0.015 wt.% sulfur), 2.5-3.6 wt.%, preferably 3 wt.% aluminum, 0.4-0.5 wt.%, preferably 0.45 wt.% molybdenum, 0.03-0.05 wt.%, preferably 0.04 wt.% titanium, 0.8-1.1 wt.%, preferably 1.1 wt.% chromium, 0.02-0.15 wt.%, preferably 0.07 wt.% titanium, iron (remaining amount), and unavoidable impurities, and further comprises 0.05-0.1 wt.%, preferably 0.07 wt.% graphene. USE - Non-magnetic steel for improving corrosion resistance of water cooling jacket of submerged arc furnace i.e. high energy-consumption smelting device. ADVANTAGE - The non-magnetic steel: has more outstanding corrosion resistance; effectively resists the acid corrosion of chloride ions in water; and solves the problem that the non-magnetic steel used for the water cooling jacket of the submerged arc furnace is easily corroded and cracked under the acid corrosion e.g. chloride ion.