Refractory-te mechanical impact resistance chu flexural strength-in a thunun ber a, fracture toughness-in nghawng a neih chu a tlem. a ni, a danglamna chu, mechanical impact resistance atan chuan, flexural strength sang ber nei retractories te hi service performance tha ber hmuh theihna kawng tha ber a ni.
Slow crack propagation condition hnuaiah chuan, materials thermal shock resistance chu flexural strength leh linear expansion coefficient. e modulus leh fracture work hmanga control ber a ni a, WOF influence chu parameters-ah a lang ber a ni. Parameter RST hian stable fracture nena inzawm parameters te chu a tarlang a ni. It be fire from seen from see from equums {{3} E, fracture hian WOF lian zawk, rst value lian zawk, crack propagation atana temperature danglamna lian zawk a mamawh a, crack stability. a tha zawk bawk.
Flexural strength leh parameters hmang hian mechanical impact resistance leh thermal shock resistance te chu retractories. ah siam theih a ni.
Chutiang chuan, refractory-a flexural strength leh parameter center value chu control leh optimized theih a nih phawt chuan, refractory-a mechanical impact resistance (crack generation) leh thermal shock resistance (crack generation leh propagation) te chu a tha thei ang bera siam theih a nih chhung chuan, chuvangin, a hnuaia kan sawi tak service conditions-te chu a hnuaia parameter tharte nen hian hman theih a ni a, chuvangin, a hnuaia parameter tharte hi a hnuaia parameter tharte hian an hmang thei a ni: Refract-in a basis-a hman theih a ni:
Refractory-a thermal shock resistance tihchangtlunnain nghawng a neih chu mechanical impact resistance aiin a sang zawk avangin RST chu a tlem tur a ni.
Physics thlirna atang chuan short cracks hian chakna a ti tha thei a, chutih laiin long cracks chuan rigidity a ti tlem thei a, crack pahnih hian stress sang tak leh fracture. a siam thei a, chuvangin, fracture mechanics framework nen a inzawm a, refracty-te structural characteristics nen a inzawm chuan, a tul angin process mamawh chu mechanical impact resistance leh thermal shock resistance tihchangtlun nan hman theih a ni.
(1) thermal stress tihziaawmna turin linear expansion emaw raw materials permanent shrinkage nei emaw coefficient hniam tak emaw raw material emaw thlan tur a ni.
(2) Particle distribution leh manufacturing process tihchangtlunna hmangin refractory porosity a tlahniam thei a, flexural strength pawh a ti tha thei.
(3) Microstructure tha ber chu crack propagation venna leh crack propagation power hmanna tur atana siam a ni a, chutiang chuan cracking mechanism siam that nan, a bik takin crack turn leh crack bifurcate theihna tur a ni.
(4) Crack turn tur chuan aggregate lian leh te hman a ngai a ni. large-size strong aggregate hman hian crack a tidanglam ang a, transgranular crack characteristics-ah chuan intergranular crack. performance a ti tha ang, sintering aiah electrofusion aggregate a ti tha thei a, chu chuan crack propagation resistance chu a ti tha thei a, chu chuan aggregate{4} agregate{4} a ti lut thei ang.
(5) Crack bifurcation tihhmasawn nan chuan matrix part design-ah chuan thermal expansion mismatch tihchangtlun nan thil chi hrang hrang leh / emaw anisotropic linear expansion coefficient hmanga hman a ngai mai thei a, chu chuan microcrack tam tak a siam thei a ni., microcrack coalescence. pumpelh nan balance tha ber zawn a ngai a ni.
