中低碳铬铁，炉底损毁机理 Medium and low carbon iron chromium, furnace bottom damage mechanism

中低碳铬铁，炉底损毁机理

炉底捣打料的侵蚀速度主要取决于捣打料的性能，炉渣碱度，施工温度， 操作时间。

在送电后，炉底温度逐步上升，超高1300度，炉底上升逐渐出现FEO液相，与cao生产铁酸钙。

当炉温超过1435度，C2F分解，液相FEO逐渐被方镁石吸收，形成MG.FEO 固溶体，CAO 与 SIO2形成C2S ， 原始材料mgo+c2f形成 RO 固溶体+ c2s陶瓷相 。

在炉子降温过程中，半烧结带存在体积膨胀，破坏烧结带整体性。

熔融液体浸入方镁石颗粒间隙，逐渐熔侵方镁石，形成低温cms-c3ms2，降低整体材料高温性能，导致炉衬寿命缩短。

Medium and low carbon iron chromium, furnace bottom damage mechanism

The erosion speed of furnace bottom tamping material mainly depends on its performance, slag and alkali degree, construction temperature and operation time.

After the power transmission, the bottom temperature of the furnace is gradually increased, super high 1300 degrees, the bottom rise of the furnace will gradually appear FEO liquid phase, and cao production of calcium ferrate.

When the furnace temperature exceeds 1435 degrees, C2F decomposes, the liquid phase FEO is gradually absorbed by calcite to form MG.FEO solid solvent, CAO and S I O S form C2S, and the original material mgo + c2f forms RO solid solvent + c2s ceramic phase.

In the process of furnace cooling, the semi-sintering belt volume expands, which destroys the integrity of the sintering belt.

The molten liquid is immersed into the particle gap of calcite, and gradually melts the calcite, forming a low temperature cms-c3ms2, which reduces the overall high temperature performance of the material and leads to the shortened life of the furnace lining.