by Click the blue character above to pay attention to the convenient construction of Naijun ~ fire-resistant prefabricated parts.
After 300 ℃ barbecue, it has a long service life.
It is an important variety used in special parts.
In recent years, the proportion of prefabricated parts is increasing.
In the special parts of the kiln that are not easy to construct, molds are made according to the actual shape, and the refractory castables are transported to the site for hanging and assembly after pre pouring, molding, curing and baking in the factory.
The manufacturing process of prefabricated parts is very complex.
After precise process proportioning, stir evenly, and then add water to pour the materials into the prefabricated iron mold.
Before pouring, the mold surface is brushed with oil to facilitate demoulding, and then add materials to vibrate evenly.
After demoulding, bake.
Baking is an important link in the manufacturing process of prefabricated parts.
In the baking process, most of the free water and crystal water of the preform itself are discharged and produce high strength.
For the prefabricated parts with large volume, they are dense, high and large in size.
The combined action of water vapor pressure and thermal stress in the baking process can easily lead to the peeling of prefabricated parts.
Sometimes it will burst.
During baking, several temperature measuring points shall be arranged in the drying kiln and a baking curve shall be preset.
The baking curve includes a plurality of heating sections and insulation sections.
By monitoring the temperature of the temperature measuring point, the baking system is carried out according to the preset baking curve.
The control method is simple and easy, and is the main control method for baking refractory preforms and other materials at present.
For the prefabricated parts with large volume, they are dense, high and large in size.
The combined action of water vapor pressure and thermal stress in the baking process can easily lead to the peeling of prefabricated parts.
Sometimes it will burst.
During baking, several temperature measuring points shall be arranged in the drying kiln and a baking curve shall be preset.
The baking curve includes a plurality of heating sections and insulation sections.
By monitoring the temperature of the temperature measuring point, the baking system is carried out according to the preset baking curve.
The control method is simple and easy, and is the main control method for baking refractory preforms and other materials at present.
Source: Network Editor.
