Ladle Nozzle Well Block Refractory,Lalde Refractory,Well Block Refractory,Block Brick

Ladle Nozzle Well Block

Introduction

The series of well blocks for nozzles block are made from high-purity, high-density, high-strength materials. Based on different materials, they have corundum, magnesia carbon and alumina spinel carbon.

 

Analysis on Magnesia Calcium Brick Used for AOD Lining

According to the effects of AOD smelting on refractories and the high required standard about molten stainless steel, the selected refractories should meet the following requirements.

1.) Excellent resistance to high temperature.

2.) Excellent corrosion resistance to slag.

3.) Excellent thermal and vibration stability.

4.) Excellent volume stability.

5.) Can purify molten steel.

Magnesia calcium brick, mainly made from magnesium sand and synthesized magnesium dolomite sand, is a kind of alkaline refractories and contains CaO. The melting points of MgO and CaO in synthesized sand are both high, it’s 2825℃ and 2620℃, their eutectic point is as high as 2370℃. When chemical reactions happen between CaO and slag, a compound with high molten point will be easily produced, such as dicalcium silicate whose molten point is 2130℃, and whose molten point is 1900℃. Those minerals with high molten points make magnesia calcium brick possess excellent resistance to high temperature.

CaO in magnesia calcium brick has good thermodynamic property stability; CaO has good resistance to acid slag. Therefore magnesia calcium brick not only has excellent resistance to high alkaline slag but also has excellent resistance to acid slag.

Magnesia calciumrefractories are the best choice for desulfurization and dephosphorization of molten steel.

High-temperature Bonding Agent

High-temperature Bonding Agent

Introduction

Bonding agents have been developed for economical processing of various types of insulating materials and lightweight construction systems. They are inorganic, asbestos-free and can be used for high temperatures. Structure, consistency and processing methods have been developed to suit special insulating material groups.

Advantages

They are ready-to-use, high permanent temperature resistance up to 1000 °C, quick bonding, and high adhesion strength.

Application

It is used to high temperature working to laying brick.