工业加热
工業加熱
공업가열
INDUSTRIIAL HEATING
2001年
2期
40-43
,共4页
电炉%钢%氢含量%真空%脱氢
電爐%鋼%氫含量%真空%脫氫
전로%강%경함량%진공%탈경
钢的纯洁度的不断提高,对钢液中氢含量提出了新的要求。影响电炉钢中氢含量的因素有:大气水分,大气相对湿度、炉渣特性,电炉,钢包和中间包的耐火衬,合金添加剂,钢中硫含量和脱硫剂及脱氧剂,钢中氧含量,废钢和铁水。采用100 t真空炉真空精炼电炉钢钢水,控制67 Pa高真空度、高真空时间、吹氩强度、真空温降、精炼渣量,能使真空脱氢率在70%以上,钢中氢含量最低为0.5×10-6。
鋼的純潔度的不斷提高,對鋼液中氫含量提齣瞭新的要求。影響電爐鋼中氫含量的因素有:大氣水分,大氣相對濕度、爐渣特性,電爐,鋼包和中間包的耐火襯,閤金添加劑,鋼中硫含量和脫硫劑及脫氧劑,鋼中氧含量,廢鋼和鐵水。採用100 t真空爐真空精煉電爐鋼鋼水,控製67 Pa高真空度、高真空時間、吹氬彊度、真空溫降、精煉渣量,能使真空脫氫率在70%以上,鋼中氫含量最低為0.5×10-6。
강적순길도적불단제고,대강액중경함량제출료신적요구。영향전로강중경함량적인소유:대기수분,대기상대습도、로사특성,전로,강포화중간포적내화츤,합금첨가제,강중류함량화탈류제급탈양제,강중양함량,폐강화철수。채용100 t진공로진공정련전로강강수,공제67 Pa고진공도、고진공시간、취아강도、진공온강、정련사량,능사진공탈경솔재70%이상,강중경함량최저위0.5×10-6。
The more pure liquid steel is,the lower its requested hydrogen content is.The factors of affecting hydrogen content in liquid steel are atmosphere moisture and its relative humidity,characteristics of slags,refractory materials,additive alloys,desulphurizer,deoxidizer,sulphur and oxygen contents in liquid steel,steel scrap and molten iron.The dehydrogenating rate under vacuum can be reached to more than 70% at 100 t VD by controlling the vacuum (67 Pa)and its keeping time,temperature decreasing rate,argon blowing pressure and the amount of refining slag.The minimum hydrogen content in liquid steel is 0.5×10-6.