熔鋁爐新型澆注料的特點

(1)高新技術澆注料包括：低水泥、超低水泥和非水泥澆注料，具有細度（低氣孔）、高強度、低溫、中溫、高溫強度等特點，強度依次為溫度。 隨著它的上升和增加； 其他澆注料的體積在各種溫度下都非常穩定。

(2) After adjusting the particle size, particle size distribution, peak planting and type of the ultrafine powder participating in the pouring, the multi-level “close packing” method is used together to reduce the porosity of the pouring material to less than 10%, and the uniform pore distribution of the cut product is only 0.5PμM, while the traditional phosphoric acid or aluminum phosphate as a binder, the uniform pores of the refractory materials are 22μM; generally speaking, it is difficult for aluminum liquid to penetrate the pores less than 0.5μM, so low cement castables will replace phosphates. Traditional refractory materials of the agent.

(3)在這種低孔隙率、小孔均勻分散的情況下，在低水泥注漿中不添加抗鋁液滲透的複合添加劑，可以增加鋁液對耐火材料的濕角，增強澆注料的鋁電阻。 液體浸泡的作用非常明顯。

熔鋁爐用澆注料

結構體

(1) Add aluminum ingots or waste materials from the furnace door to the furnace, which is easy to hit the furnace door and the top of the furnace door. It is recommended to use high-strength low-cement castables with heat-resistant steel fibers on the furnace door and the top of the furnace door. It is a high-quality refractory material equipped with stainless steel heat-resistant fibers containing nickel and chromium and other alloying elements on the basis of low cement castables, and appropriate explosion-proof agents and special additives. It is characterized by high strength, good resistance, impact resistance, Heat shock resistance, shedding resistance, corrosion resistance, penetration resistance, etc. It is functional when used in an environment below 1200°C. Tests show that its strength at 1000°C is 30-60 higher than that of ordinary high-alumina castables without steel fiber.

(2) For the furnace top, a castable with good volume stability and high high-temperature structural strength should be selected. Considering energy saving and consumption reduction, the bulk density of the castable should be as small as possible.

（3）全窯採用輕質澆注料、輕質磚、輕質保溫砂漿、矽酸鋁纖維製品等輕質保溫材料，使整窯充分熱化，降低能耗，達到要求。

At present, silicon nitride combined with silicon carbide materials has been used to replace carbon bricks in the side wall materials of aluminum electrolytic cells. Although the silicon carbide in the silicon nitride combined with silicon carbide material can react with oxygen to generate silicon dioxide at high temperatures, the more formed silicon dioxide film on the outside can prevent the continued oxidation of silicon carbide materials. Moreover, the combination of silicon nitride and silicon carbide materials is resistant to cryolite corrosion and has good oxidation resistance, which can greatly increase the service life of the aluminum electrolytic cell. The bottom is made of dry impermeable material, thermal insulation brick and calcium silicate board.