In our country, steel rolling heating furnace has become an important tool to achieve energy saving and emission reduction. Improving thermal efficiency is an important measure. Do you know what is the maximum temperature of the lining of steel rolling heating furnace? Today Yinuo will come to briefly analyze with you.

The baking of refractory castables is divided into the following stages:

1. Discharge free water around 100℃;

2. Drain 10% of the combined water at around 150℃;

3. Discharge 20%-35% of combined water at around 300℃;

About 4.500℃, about 15% of the combined water is discharged.

The lining of the steel rolling heating furnace is basically made of aluminate cement castable, and the free water and the combined water are basically removed after baking at about 600 ℃. As long as the heat preservation time at this stage is longer, according to the thickness of the lining, it is not less than 48 hours. There should be no danger of furnace explosion, and the subsequent temperature can be quickly raised to the use temperature.