狭缝型透气砖采用高纯原料，经振动成型、高温烧成制得。该型透气砖通过透气砖芯狭缝供给氩气，具有热态强度高，抗热震、抗侵蚀和耐冲刷性能好等优点，其性能已达到或超过国外同类进口产品，应用于炼钢厂LF、LF-VD、 CAS-OB精炼钢包和连铸普通钢包吹氩透气砖工艺，使用寿命长，吹通率高， 安全性好，性价比高。

Slots purging plug is made of high purity raw material by vibration molding and high temperature firing. This type plug supplies argon through the narrow gap, it has the advantages of high hot strength, good thermal shock resistance, corrosion resistance and erosion resistance, etc. Its performance has reached or exceeded that of similar imported products abroad, and is used in steel mill LF, LF-VD, CAS-OB refined ladle and continuous casting ordinary ladle blowing argon purging plug process, with long service life, high blowing rate and good safety. High cost performance.