在镁铬砂上加入水硬性结合剂制成浇铸料及混凝土大块，可以用在电炉出钢槽，RH炉插人管、DH炉炉身、感应炉流槽、均热炉滑轨、电炉炉顶、炉门、二次精炼炉炉口。它的主要特点为：具有较高的耐火度、良好的烧结性能、气孔率低、对渣和金属液的冲刷、腐蚀。渗透抵抗力较好；高温? In the magnesia-chrome sand jointing hydraulic binder made of castables and concrete chunks, can be used in the furnace tapping groove, RH furnace insert tube, DH furnace shaft, induction furnace flow channel, soaking furnace slide rail, electric furnace roof Furnace door, secondary refining furnace mouth. Its main features are: high refractoriness, good sintering performance, low porosity, erosion and corrosion of slag and liquid metal. Penetration resistance is better; high temperature?