How does fireproof material answer the thermal stress of nonferrous metal and mechanical stress?

Fireproof material needs to answer high temperature, thermal stress and mechanical stress in nonferrous metal industry. It is a few main strategy below:


Choose relevant data: Alumina (Al₂O₃ ) : Have high melting point and good heatproof shake sex, apply to high temperature application. Magnesia brick (MgO) : Apply to the smelt of the nonferrous metal that contain magnesium, yinjinai is fought high blandly alkalescent. Carborundum (SiC) : Have tall thermal conductance to mix fight abrasiveness goodly, apply to high temperature environment.
Optimize the small structure of material: Particle size and distributing: Fine grained material can raise heatproof shake sex, and the grain that distributings equably can reduce stress concentration. Add flexibilizer: The stone that be like zirconium (ZrSiO₄ ) wait, the tenacity that can enhance material and crack resistance can.
Design reasonable structure: Prefabricated component design: Mix like prefab brick pouring makings, can reduce the stress concentration in construction. Complex structure: Use multilayer or complex structure, OK and dispersive stress, raise integral wear.
Control temperature gradient: Advance gradually warms up and drop in temperature: Avoid suddenly cold heat up suddenly, reduce thermal stress. Heat up protective screen coating: In fireproof material surface besmear Fu heats up protective screen layer, can reduce thermal shock.
Enhance mechanical strength: Compact change processing: Mix through agglomeration compact change processing, raise the mechanical intensity of material and wearability. Steel fiber increases: In fireproof and pouring steel fiber is added in makings, can increase the capacity that resists mechanical concussion and vibration.
Safeguard regularly and check: Crackle detects: Inspect the crackle of fireproof material and wear out condition regularly, seasonable rehabilitate or change. Use protection coating: In be besmeared easily by tatty area Fu covering layer, can prolong service life.
Adopt afore-mentioned methods, can answer the thermal stress that fireproof stuff place faces in nonferrous metal industry and mechanical stress effectively, ensure its are in the stability in high temperature environment and wear.