高炉铁水沟投入法脱硅处理的脱硅效率比较低,一般为()。A、20%B、50%C、80%...
Monday, May 1, 2023
石灰喷吹罐称重系统设计能装()Kg石灰。A、2500B、3000C、1000D、2000...
Monday, November 6, 2023
Thursday, July 13, 2023
Sunday, September 11, 2022
酒钢不锈钢连铸机机型为()。A、立式连铸机B、直弧型连铸机C、全弧型连铸机...
Thursday, November 30, 2023
Sunday, November 12, 2023
向铁水流表面投入熔剂,并利用铁沟内铁水落差进行搅拌的脱硅方法为()。A、自然投入法B、气体搅拌法C、液面喷吹法...
Sunday, November 12, 2023
酒钢脱磷顶加料剂不包括()。A、硅石B、氧化铁皮C、铁矿石...
Saturday, January 27, 2024
金属腐蚀可分为化学腐蚀与()两类。A、电化学腐蚀B、气体腐蚀C、干蚀...
Monday, February 27, 2023
Saturday, January 27, 2024
实现铁水“三脱”以后,转炉仅为脱硅和脱碳,可实现少渣冶炼,大量的降低石灰和钢铁料的消耗。...
Saturday, May 18, 2024
Saturday, October 21, 2023
Saturday, May 18, 2024
采用EAF+AOD两步法工艺生产下列哪一个钢种最不经济()。A、304B、430C、超纯铁素体...
Wednesday, December 20, 2023
Monday, March 25, 2024
高炉中去硫意味着必须提高渣碱度增加渣量,从而引起焦耗的增多。...
Thursday, December 7, 2023
下列()不锈钢的耐腐蚀能力最强。A、AISI304B、AISI430C、AISI316L...
Saturday, October 7, 2023
Saturday, May 18, 2024
熔铁中如有AL2O3、Cr2O3一类的固体质点,则黏度()。A、不变B、减少C、增大...
Saturday, May 18, 2024