Kuleylka - bir iska caabbinta waa nooc gaar ah oo bir ah oo ilaalin kara xoogga, iska caabin diimeed iyo iska caabbinta gurguurta ee jawiga heerkulka sare. Waxaa si weyn loogu adeegsadaa tamar, warshadaha kiimikada, hawada iyo meelaha kale. Marka loo eego qaabka kiimikaad ee kala duwan iyo waxqabadka, kuleylka {{3 {3 {3 {{3 {3- bir u adkaysata ayaa loo qaybin karaa noocyo badan, nooc kastaa waxay ku habboon tahay xaalado shaqo oo kaladuwan. Fahmitaanka kala soocidda kuleylka {{5} Speltiper u adkaysta shirkadaha si sax ah u doorta agabyada iyo hagaajinta nolosha adeegga iyo badbaadada qalabka.
According to chemical composition, heat-resistant steel is mainly divided into three categories: chromium-molybdenum steel, austenitic heat-resistant steel and ferritic heat-resistant steel. Chromium {{5} sylbdenum steel waa nooca kuleylka ugu caansan - bir u adkaysta. Waxay ka kooban tahay koromium-ka sare iyo walxaha molybdenum, waxay leeyihiin sare {{} {8}, oo ku habboon {{{{}, wuxuuna ku habboon yahay {{} {{} {{} Kuleylka austenitic - bir jilicsan oo u adeegsan kara nikkel iyo chromium-ka oo ah walxaha ugu waaweyn, sida 310s, 309s, oo ah shan-sano iyo fasallo kale. Waxay leedahay heer sare oo heer sare ah {{17} oo ah iska caabbial-is-caabbinta iyo had iyo jeer waxaa loo isticmaalaa in sarre - tuubbooyinka foornada ee heerkulka, kuleylka kuleylka iyo qalabka kale. Kuleylka ferritic - bir jilicsan oo leh koromomium-ka sare, laakiin nusl ah nikkel hooseeya, waana mid aad u yar. Waxay ku habboon tahay kuleylka kuleylka iyo qaybaha gubashada ee heerkulka hoose.
According to the use temperature and performance characteristics, heat-resistant steel can also be subdivided into low-alloy heat-resistant steel, medium-alloy heat-resistant steel and high-alloy heat-resistant steel. Low {{8} {} kuleylka {{9} ee bir bir ah ayaa badanaa loo isticmaalaa xaaladaha shaqada oo ka hooseeya 500 darajo, sida 15cr1mov, oo inta badan waxaa loo isticmaalaa dhexdhexaad dhulbahand oo ku yaal warshadaha patrochical iyo aaladda. Dhex dhexaad ah {{17} Kulayl leh bir aad u adag oo ku habboon jawiga heerkulka ee 600}} 800 heer ah, sida 2.25} oo loo adeegsado dib-u-haynta biyaha iyo qalabka birta. Sare u sarreeya {{26} kuleylka 'alkolo' {{30} stats u adkaysata sida muuqaalka-Infelle (sida macbacal 600, 625) iyo inta badan waxaa loo isticmaalaa meelaha ugu badan ee matoorrada diyaaradaha iyo marawaxadaha gaaska.
Intaa waxaa u dheer, kuleylka - bir u adkaysta ah ayaa sidoo kale loo qaybin karaa kuleylka pellite {{}} bir bir ah, kuleylka u adkaysiga birta, kuleylka ugu adkaysiga birta iyo kuleylka ee ugu adkaysiga ah. Kuleylka pearlite kuleylka {{5} bir jilicsan ayaa badanaa loo isticmaalaa dhexdhexaad {{6} {}}, halka kuleylka martensite - bir bir ah oo ay ku habboon yihiin daaweynta kuleylka oo ay ku habboon tahay heerkulka kuleylka iyo waxyaabaha kale.
Kala-saaridda kuleylka {{0}- bir u adkaysta waa mid adag oo kala duwan. Shirkaduhu waxay u baahan tahay inay xulato agab munaasib ah iyadoo loo eegayo heerkulka hawlgalka gaarka ah, jawiga jiifka iyo shuruudaha qiimaha. Xulashada sahaminta oo keliya ma hagaajin karto oo keliya waxqabadka qalabka, laakiin waxay yareysaa kharashaadka dayactirka, oo abuuraya faa'iidooyin dhaqaale oo weyn oo loogu talagalay shirkadaha.
