The damage that steel includes fireproof material basically results from high temperature, chemistry is eroded, a variety of elements such as mechanical concussion. It is to basically damage the reason reachs below raise measure accordingly:
One, attaint reason
1.High temperature erodes: The high temperature of molten steel (control in 1500 ° C normally) can bring about fireproof material to be eroded below abominable condition by be heated with thermal shock.
2.Chemistry erodes: The element in molten steel (like sulfur, phosphor) and slaggy the meeting such as medium alkali metal oxide causes chemistry to corrode to fireproof material.
3.Mechanical concussion: Pouring the molten steel concussion in the process and flow cause firebrick wear away or flake, the floor that includes in steel especially and mural ministry.
4.Thermal shock: Steel bag is in pouring the rapid change that temperature experiences in the process, because heat up the inhomogenous sex that expand and contracts to produce crackle,bring about fireproof material.
5.Oxidation and reductive environment: The existence of the oxygen inside steel bag or lack, can affect the chemical stability of fireproof material, bring about material function to drop.
2, raise measure
1.Choose high-powered fireproof data: The fireproof data that collects appliance to have sex of admirable and heatproof shake, chemical stability and mechanical strength (brick of pointed spar of brick of the carbon that be like magnesium, aluminium magnesium) .
2.The build by laying bricks or stones that optimizes firebrick builds technology: Ensure the brick is seamed even, join closely, reduce thermal stress concentration. Use advanced build by laying bricks or stones to build a technology (like mechanization construction) raise build by laying bricks or stones to build mass.
3.Temperature of reasonable control molten steel: Those who control molten steel is pouring temperature, avoid temperature exorbitant the too fast damage that causes fireproof material.
4.Reduce pouring speed: What reduce molten steel appropriately is pouring speed, reduce the wallop to liner, reduce wear away and erode.
5.Safeguard regularly and repair: Regular examination steel includes the state of liner, undertake in time to the place that wear away or damages repairing (if use fireproof spray,expect) .
6.Control slaggy property: Adjust slaggy chemical composition, maintain its alkalinity to be in reasonable range, reduce pair of fireproof material corrode.
7.Reduce empty package time: Optimize technological process, shorten the empty package time that steel includes, reduce fireproof material to reveal the time below abominable temperature.
8.Introduce the online technology that monitor: Use temperature sensor, infra-red monitor wait for a technology, real time monitoring is fireproof the use state of material, discover a problem ahead of schedule and undertake maintenance.
The attaint that sums up steel to include fireproof material basically is eroded as a result of high temperature, chemistry and the element such as mechanical concussion. Through choosing high-powered data, optimize build by laying bricks or stones to build craft, reasonable control molten steel temperature, reduce pouring speed, fixed safeguard and monitor wait for measure, can improve the service life of fireproof material effectively, reduce damage, improve the integral performance that steel includes.
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