Heat resistant cast iron hi cast iron chi khat a ni a, temperature sang takah hman a ni a, a chhan chu a oxidation resistance tha tak, a than chakna leh heat fatigue resistance a tha em em vang a ni. A tlangpuiin, CR, Si, Al te hi a heat resistance vawng rengtu ber an ni a, a bik takin a hman temperature 1200K vel a nih chuan AL hi a pawimawh hle niin a lang. Aluminum refractory cast iron hman hi a brittleness leh a lumna a tha lo leh fatigue resistance vangin a tlem hle. Rare earth elements hian ordinary cast iron tissue leh mechanical property-a nghawng a neih dan chu report a ni a, mahse CE-in aluminum refractory cast iron tissue leh mechanical property-a nghawng a neih dan erawh zirchian a la ni lo
"Growth" tih hian graphite sheet leh cracks boundary-a oxidizing gas lut avanga oxidation lo awm, leh graphitization avanga casting volume expansion avanga decomposition avanga lo awm chu a kawk a ni. Cast iron-a aluminum, silicon, chromium leh element dangte dah chuan silica dense layer, aluminum oxide film chu cast chunglamah a dah a, chu chuan temperature sang takah antioxidant capacity chu nasa takin a tichangtlung thei a, cast iron matrix chu phase ferrite-ah a siam thei bawk. Chu bakah, silicon leh aluminum te hian phase change point an ti tha thei a, chutiang chuan an hnathawhna temperature-ah solid phase change an tawk lo a, a chhuak volume change leh micro-cracks te pawh an ti tlem thei bawk. Chromium hian carbide nghet tak a siam thei a, cast iron thermal stability a ti tha thei bawk. Heat-resistant cast iron hman tlanglawn tak hian medium silicon cast iron, high chromium cast iron, nickel chromium silicon cast iron, etc. a nei a, a bik takin heating furnace accessories siamna atana hman a ni a, chu chu furnace bottom plate, chain components, heat exchanger, etc. te a ni.
1. Silicon system hi iron cast theih loh tur a ni(RTSI5) .
This material is the oldest kind of silicon cast iron in sheet graphite, the mechanical properties decreases with the increase of silicon content at room temperature, and decreases sharply with Si>6.5% a ni. Mahse, carbon leh silicon zawng zawng hi constant value a ni. SI a sang a nih chuan C chu discharge a ni ang a, chu chu a bik takin ngaihven tur a ni.
2. Chromium system hi cast iron 1000 laka heat-resistant a ni.
Heat resistant cast iron hmang hian carbon content tihchangtlun hi wear condition hnuaia heat resistance atan a tha a; Silicon content tihpun chuan antioxidant capacity a tipung ang a, mahse temperature sang leh thermal stability a ti tlem ang a, chuvangin SI content chu a tlangpuiin 4% aia tam a ni lo.
3. Aluminum system hi cast iron 1000 laka heat-resistant a ni.
Aluminum heat-resistant cast iron, AL content a pun zel avangin heat resistance pawh a sang chho zel a, mahse a hman dan tur chu a lian lo hle a, a chhan chu processing performance lungawithlak tak a awm loh avangin, mechanical property hniam ber leh brittleness nasa tak a awm a ni.
4. Nickel-series a heat-resistant cast iron .
High nickel austenitic cast iron, heat impact resistance tha tak, temperature strength sang leh creep resistance bakah heat resistance tha tak avang hian China ramah ngaihven a hlawh zual sauh sauh a ni. Tin, room temperature leh high temperature-a impact toughness tha tak a neih avangin, brittle break a veng thei a, silicon, silicon aluminum leh chromium system heat-resistant cast iron thlak turin a awm thei bawk
