What is the difference between clay bricks and three-level high alumina bricks?

Babban bambanci tsakanin tubalin yumɓu da manyan tubalin alumina shine abun ciki na aluminium da yawa.

Bricks da 40-48% abun ciki na aluminium tubalin yumbu ne. Tubalan yumbu suna da alamomi daban-daban na N-1, N-2, N-3, da N-4 a ma’aunin ƙasa. A cikin samarwa da amfani, ana amfani da tubalin N-2, N- 3, kuma suma samfuran gama gari ne da masana’antun da yawa ke samarwa. Girman ƙarar yana tsakanin 2.1-2.15. Dangane da tubalin yumbu na N-1, wasu alamomi sun fi na alumina daraja mai daraja ta uku.

Bricks with 55% aluminum content are third-grade high-alumina bricks with a bulk density between 2.15-2.25. At present, due to the production area and raw materials, the aluminum content of clay bricks is about 56%. The aluminum content of the clay bricks in Xinmi, Henan is about 56%, and the body density is above 2.15, which is basically a third-grade high-alumina brick. Moreover, the firing temperature is high, and the chemical index is not lower than the third-grade high alumina brick, but there is a difference in the softening temperature of the load.

The aluminum content of the three-level high alumina bricks currently produced is about 63%, and some have 65%. The body density is above 2.25, and the load softening temperature is slightly lower. In terms of chemical indicators, it is only different from the second grade high alumina bricks in unit weight and load softening temperature.

Har yanzu launin kamanin tubalin yumɓu da tubalin manyan alumina masu daraja ta uku har yanzu ya bambanta. Tubalan yumɓu ja-rawaya ne, kuma manyan-alumina masu daraja ta uku fari da rawaya.

Akwai bambanci a cikin nauyi tsakanin tubalin yumɓu da manyan tubalin alumina masu daraja uku. Irin tubalin nau’in tubalin yumbu yana da nauyi fiye da manyan tubalin alumina uku. Hakanan zafin zafin wuta yana ƙasa da 20-30 ° C.

Tubalan yumɓu da manyan tubalin alumina masu daraja uku suna da bambanci a cikin ƙarfin matsawa da ɗaukar zafin zafin jiki. Matsanancin ƙarfin tubalin yumɓu shine 40Mpa, yayin da ƙarfin matsi na manyan tubalin alumina na aji uku shine 50Mpa. Nauyin laushi na tubalin yumbu ya fi na aji uku. Refractoriness na aluminum tubali ne 30-40 ℃, da refractoriness ne game da 30 ℃ ƙananan.