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Function of artesic refractory castable for ladle

Words:[Big][Medium][Small] Mobile Page Two-Dimensional Code 2018-06-10     

On the permanent lining of the ladle with artesian refractory castable, the application is more and the furnace age is adjusted several times.On ladle linings, the age is lower than that of comparable refractory castable.When using artesient refractory castable to make up the lining of ladle, it is convenient to construct and effective to use.

On the permanent lining of ladle, the high aluminum artesient refractory castable with high volume density has been used to dissipate heat quickly, which leads to the temperature drop of molten steel or the phenomenon of cold steel. In the future, the artesient refractory castable with a slightly smaller volume density has achieved better results.

Material synthesis and function


Three grade rockfill clinker and burnt gem as refractory aggregate, and add light high aluminum or light mullite aggregate, with top rockfill clinker as fine powder, and add.A12a3 and Si02 ultrafine powder were used as the concluding agent with ca-50 steel and polyphosphate as the dispersing agent.Use top or first grade rockwell clinker as refractory "h" material and powder, the latter use mullite as part of the powder, add composite ultrafine powder, use ca-70 steel as a finishing agent and add or subtract decoction.

A1203 > 88% of the top grade rock ten clinker as refractory aggregate, white corundum, alum ten base spinel (A1203 62% and Mg029%),Mg0 more than 95% of the sintered magnesia and a a 1203 ultrafine powder as refractory powder, 5i02 more than 93% of the micro silicon powder as the conclusion agent and add water reducing agent.Dense corundum is used as coarse aggregate, plate corundum is used as medium grain aggregate, electrofused white corundum is used as fine aggregate and powder, aluminum-rich spinel and electrofused magnesia powder, a-a1203 and Sio2 ultrafine powder are added, ca-80 iron and steel is used as binding agent and water reducing agent.The mass ratio of refractory bone powder is about 63:37.

The variety of binder commonly used for uncertain refractories and the mechanism of condensation and hardening


1. The crystal reversal process of aluminate steel liquefaction products is ca2h10-c2ah8 and Haq-.AH2 crystals.Because of the aluminum glue coated steel particles and liquefied calcium aluminate cross-linked, resulting in steel hardening and change.

2. Phosphoric acid and phosphate phosphate group photons compete to change the coagulant into metal sunlight.The composition of phosphate water containing phosphate with good gelling property.

3, sodium silicate in the sodium silicate refractory castable, add Na2SiF6 stirring, to ensure the precipitation and condensation of silicate sol, deposition in the surface of refractory aggregate powder, cement hardening, and get intensity.

4. The potential can be reduced by using the photon replacement property.Make grain between close and join, form venation structure, produce intensity.



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