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Function of artesic refractory castable for ladle

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

The water of ladle with artesient refractory castable is used more often, the furnace age is adjusted several times on the lining of ladle, the furnace age is lower than that of the same quality refractory castable, when the artesient refractory castable is used to make up the lining of ladle, the construction is convenient and the use effect is very good.

 

The permanent lining of the guillet.The self-flowing refractory castables with high bulk density have been used to heat up rapidly, which results in the decrease of temperature of molten steel or the occurrence of cold steel phenomenon. The self-flowing refractory castables with slightly smaller bulk density have been used in the future, and the effect is better.

Material synthesis and function

Use third-grade bauxite clinker and scorched gem as refractory aggregate, and add light gaolin or light mullite aggregate, use top-grade bauxite clinker as fine powder, grab add a- al203 and si02 ultrafine powder, use ca-50 steel as the binding agent and polyphosphate as the disintegrating water-reducing agent.Use top-grade or first-class bauxite clinker as refractory aggregate and powder, the latter use mullite as part of powder, add composite ultrafine powder, use ca-7 steel

As a binding agent and add water reducing agent.

AL203>88% of the top bauxite clinker as refractory aggregate, white corundum, bauxite based peak crystal (AL203 62% and Mg029%), Mg0 more than 95% sintered magnesia and a-al203 ultrafine powder as refractory powder, si02 more than 93% u-si02 as the conclusion agent and add water reducer.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-al1203 and sio2 ultrafine powder are added, and ca-80 steel is used as binding agent and water-reducing agent.The mass ratio of refractory bone powder is about 63:37.

 

Type of binder commonly used for amorphous refractories and its condensing and hardening mechanism

 

1. Crystal reversal process of aluminate iron and steel liquefaction products is ca2h10-c2ah8 and haq-ah2 crystals.Because the aluminum coated steel particles and liquefied calcium aluminate interconnect with each other, resulting in steel hardening and change.

 

2. Phosphoric acid and phosphate phosphoric acid fights with photons to change the coagulant into metal sunlight, which constitutes the 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 of clay can be reduced by using the photon replacement property.Make grain between close and join, form venation structure, produce intensity.







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