公开(公告)号：US20020177517A1

公开(公告)日：2002-11-28

申请号：US10022400

申请日：2002-02-11

Applicant: Baker Refractories, Inc.

Inventor： Donald B. Hoover ,  Franklin A. Renda ,  Donald J. Griffin ,  Colin Richmond

IPC: C04B035/48 ,  C04B035/52

CPC classification number: C04B35/6264 ,  B22D41/505 ,  B22D41/54 ,  C04B35/013 ,  C04B35/06 ,  C04B35/48 ,  C04B35/486 ,  C04B35/66 ,  C04B2235/3206 ,  C04B2235/321 ,  C04B2235/3217 ,  C04B2235/3229 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/3817 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/3839 ,  C04B2235/3843 ,  C04B2235/401 ,  C04B2235/402 ,  C04B2235/421 ,  C04B2235/425 ,  C04B2235/428 ,  C04B2235/48 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/72

Abstract: An improved submerged entry nozzle is provided which is useful in the casting of aluminum killed molten steel. The nozzle has an improved slagline sleeve or collar which surrounds the outer portion of the nozzle to protect it from corrosion during the casting process. The slagline sleeve is made from resin bonded zirconia/graphite which has been formulated so that upon curing of the resin to form resite, there is a reduction in the contractile tendency which results in a reduction in stress fracturing. The reduction of the contractile tendency and the resulting resistance to stress fracturing is achieved by adding an effective amount of calcium oxide to the resin-zirconia-graphite mixture which is used to form the sleeve.

Abstract translation: 提供了一种改进的浸入式喷嘴，其可用于铸铝处理的钢水。 喷嘴具有改进的熔渣套筒或套环，其围绕喷嘴的外部部分以防止其在铸造过程中的腐蚀。 渣线套筒由树脂粘结的氧化锆/石墨制成，其被配制成使得在树脂固化形成时，收缩倾向减小，导致应力压裂减少。 通过向用于形成套筒的树脂 - 氧化锆 - 石墨混合物中加入有效量的氧化钙来实现收缩倾向的减小和所产生的对应力压裂的抵抗力。