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

Umahluko ophambili phakathi kwezitena zodongwe kunye nezitena eziphakamileyo zealumumina ngumxholo wealuminium kunye noxinano olukhulu.

Izitena ezinomxholo wealuminium ezingama-40-48 zizitena zodongwe. Izitena zodongwe zinezikhombisi ezahlukeneyo ze-N-1, N-2, N-3, kunye ne-N-4 kumgangatho kazwelonke. Kwimveliso kunye nokusetyenziswa, izitena zodongwe i-N-2, N- 3 zisetyenziswa kakhulu, kwaye zikwayimveliso eqhelekileyo eveliswa ngabavelisi abaninzi. Ukuxinana kwevolumu kuphakathi kwe-2.1-2.15. Kwimeko yezitena zodongwe ze-N-1, ezinye izalathi zingaphezulu kunebakala lesithathu lezitena zealumnium.

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.

Umbala wokubonakala kwezitena zodongwe kunye nezitena eziphakamileyo ze-alumina ezikumgangatho wesithathu zahlukile. Izitena zodongwe zibomvu-tyheli, kunye nezitena ezikumgangatho wesithathu ezine-alumina ezimhlophe zimthubi.

Kukho umahluko kubunzima phakathi kwezitena zodongwe kunye nebakala lesithathu ngezitena eziphezulu zealumni. Izitena ezifanayo zodongwe zilula kunebanga lesithathu lezitena eziphezulu zealumni. Iqondo lokudubula nalo lisezantsi nge-20-30 ° C.

Izitena zodongwe kunye nebakala lesithathu izitena eziphezulu zealumina zinomahluko kumandla oxineneyo kunye nomthwalo wokunciphisa ubushushu. Amandla okucinezelwa kwezitena zodongwe yi-40Mpa, ngelixa amandla oxineneyo ebakala lesithathu kwizitena eziphezulu zealumni yi-50Mpa. Umthwalo othambileyo wezitena zodongwe ukwangaphezulu kunowebanga lesithathu. Ukuphinda kubambe isitena sealuminium ngama-30 ukuya kuma-40 ℃, kwaye ukuphindaphinda kwaso kumalunga nama-30 ℃ asezantsi.