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

Gil g’isht va yuqori alumina g’isht o’rtasidagi asosiy farq alyuminiy tarkibi va quyma zichligi.

40-48% alyuminiyli g’ishtlar loy g’ishtdir. Gil g’ishtlari milliy standartda N-1, N-2, N-3 va N-4 ko’rsatkichlariga ega. Ishlab chiqarish va ishlatishda N-2, N- 3 gil g’ishtlari keng qo’llaniladi va ular ham ko’plab ishlab chiqaruvchilar tomonidan ishlab chiqarilgan keng tarqalgan mahsulotlardir. Ovoz zichligi 2.1-2.15 oralig’ida. N-1 loyli g’ishtlarga nisbatan, ba’zi ko’rsatkichlar uchinchi darajali alumina g’ishtdan yuqori.

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.

Loydan qilingan g’isht va uchinchi navli yuqori alumina g’ishtlarning tashqi ko’rinishi hali ham turlicha. Gil g’ishtlari qizil-sariq, uchinchi navli yuqori alumina g’ishtlari oq va sariq rangda.

Loydan yasalgan g’isht va alyuminiy alyuminiyli uchinchi darajali g’isht o’rtasida og’irlik farqi bor. Xuddi shu g’isht tipidagi gil g’ishtlari, alyuminiy alyuminiyli uchinchi g’ishtdan engilroq. Yonish harorati ham 20-30 ° C ga past bo’ladi.

Gil g’ishtlari va uchinchi yuqori alumina g’ishtlari bosim kuchi va yukni yumshatish harorati bilan farq qiladi. Loydan qilingan g’ishtlarning siqilish kuchi 40Mpa, yuqori navli alyuminiyli g’ishtlarning 50 graduslik bosimi. Loydan qilingan g’ishtlarning yumshoq yuki ham uchinchi sinfga qaraganda yuqori. Alyuminiy g’ishtning refrakterligi 30-40 ℃, uning refrakterligi esa taxminan 30 ℃ pastda.