Castables for reheating furnace

Heating furnace is used for rolling steel or forging steel billet or small steel ingot thermal equipment, the operating temperature below 1400 degrees. With the rapid development of refractory castables, more and more castables are used for reheating furnace, the most common used of them are as follows:.
(1) Self-flow castable
Applicable to the furnace structure is more complex, artificial can not vibrate the site. The maximum temperature of 1500 ℃, which is characterized by good thermal shock resistance, high refractoriness, construction is simple, almost no vibration.
(2) Refractory plastic
For the furnace roof, furnace wall face.
(3) Low cement castable
Applicable to the high temperature furnace, the temperature zone, the use of temperature between 1400 ~ 1500 ℃.
(4) Phosphate castables
It is suitable for the bottom of the furnace and other parts which are subject to friction and hot air scouring. The mixing degree is between 1000 and 1600 ℃. It is made of phosphoric acid or phosphate as the binder, aluminum cement and magnesite. A castable of a gelling agent.
(5) Mullite castable
High thermal shock resistance, erosion resistance, good corrosion resistance, good volume stability, high temperature, it is generally used in the furnace wall, roof and pressure beam and other key parts, or used to prefabricated burner brick.
(6) Anti-dry slag castable
It is suitable for the bottom of the furnace and the site where the iron oxide slag is deposited. The maximum temperature of up to 1600 ℃. Its main features are: high refractoriness, thermal shock resistance, and can be a good resistance to heating furnace iron oxide slag erosion.
(7) Light castable
Light castable for furnace wall, roof, flue and other parts of the insulation layer. High-strength lightweight castables can also be used as a working lining for smoke and hot air ducts.
Article Source:Castables for reheating furnace
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