Tšhipi e tlwaelegilego yeo e sa kgonego go fiša .
Go ya ka dimelo tša tšhomišo ye e fapanego, tšhipi ye e sa kgonego go thibela phišo e arotšwe ka tšhipi ya antioxidant ka go ganetša oxidation bjalo ka dimelo tše kgolo tša tšhomišo le tšhipi ya maatla a phišo ka maatla a themperetšha ya godimo bjalo ka dimelo tša tšhomišo ye kgolo.
① Resistance oxide steel resistance oxide steel is mostly in the carbon quality fraction of high Cr steel, high Cr Ni steel or high Cr-Mn steel based on the appropriate amount of Si or Al preparation, mainly ferric type and austenitic type two categories. Fertin type antioxidant steel, such as 1Crl3SiAl, its highest use temperature is 900℃, commonly used as nozzle, aling stove hood, etc. Austenitic type antioxidant steel, such as 2Cr20Mn9Ni2Si2N and 3Crl8Mnl2Si2N steel has good oxidation resistance (maximum use temperature up to 1000℃, sulfur corrosion resistance and carburization resistance, and has good casting performance, so it is often used to manufacture castings, but also shear, hot and cold stamping and welding.
Antioxide tšepe e haholo-holo sebediswa bakeng sa nako e telele mosebetsi ka thempereichara e phahameng, empa thepa mechine (matla, joalo-joalo.) ditlhoko ha se dikarolo tse phahameng, tse kang khase turbine go tuka ga molelo kamoreng, rolara, tube sebōpi, mocheso exchanger, joalo-joalo.
2 mogote matla tšepe ka aroloa ka dihlopha tse tharo: Ferrite e mong bead leseli 'mele mogote matla tšepe, martensitic mogote matla tšepe, austenitic mogote matla tšepe.
A. Dika tša tlhamo ya tšhipi ye e tiilego ye e fišago ke: khapone ya fase, WC .<0.2%; Cr and Si improve the oxidation resistance of steel; Cr, Mo (W) are soluble in ferrite and enhance the recrystallization temperature, thus increasing the creep limit of the matrix; Cr, Mo, V (Ti) strengthen the dispersion.
The mocheso kalafo litšobotsi: tloaelehileng go tuka ga molelo (950 ~ 1050 tekanyo ) 'me joale 100 tekanyo (i. E{{4} ~ 750 tekanyo ). dinama tse nyenyane tse tloaelehileng ke Fertin + Pearlet, le morago ga moo e phahameng thempereichara tempering e reretsoe ho eketsa dinama tse nyenyane tse botsitso (boima ba khabone) ho ntlafatsa creep kganetso.
The tloaelehileng tšepe linomoro ke 15 CRMO, 12CR1MOV, 25CR2Mova, joalo-joalo., tse bang ba tlaase-khabone motsoako tšepe. segokanyipalo sa eona se senyenyane sa katoloso, ho ntle mogote conductivity, o na le e ntle e batang, thermoplastic tshebetso tshebetso le tshebetso ya ho sebetsa ka 450} 10 , na le boleng bo phahameng bakeng sa ena e phahameng , e na le boholo bo phahameng boholo , na le boholo bo boholohali boholo bo boholohali bakeng sa ena e phahameng bakeng sa ena e phahameng bakeng sa sena se seholo. Polante ya mohlagase yeo e nago le morwalo o monyenyane, go swana le di-boiler le diphaephe tšeo di nago le themperetšha ya go šoma ya ka tlase ga 600℃, diphaephe tše dingwe, dijana tša kgatelelo, rotor ya turbine ya mouwane, bj.bj.
b. Dika tša tšhipi ya maatla a go fiša ya Martentic ke: khapone ya fase (ya magareng), WC=0.1%~0.4%; Ka elements motsoako e nang le, phahameng Cr e sebediswa ho ntlafatsa oxidation ho hanyetsa tšepe; Cr, W, Mo, V, (Ti, Nb) le dielemente tše dingwe di godiša go phatlalatšwa le go phatlalatšwa mo go tiilego; W, MO e ka boela ya fokotsa go fokola mo go golago.
Dika tša kalafo ya phišo ke: kalafo ya go dira gore boleng bo be boemong bjo bo phagamego + go ba le tekanyo ya godimo ya themperetšha ya 100℃ka godimo ga themperetšha ya tšhomišo, gomme dinama tše di lego boemong bja yona bja tšhomišo di a ferekanya mmele wa tšhipi, e le gore go kgonthišišwe go tsepama ga dinama le tshepedišo ka themperetšha ya tšhomišo.
Nomoro ya tšhipi yeo e šomišwago ka tlwaelo ke 1CRL3, 2CR13,1CRLLMOV, 1CRL2W.MOV, le 4CR9Si2,4CRL0Si2mo le tšhipi ye nngwe ya motswako wa godimo. Bokgoni bja go šoma bja go šoma bja mohuta wo o ka kgona go hwetša sedirišwa sa go fodiša moya sa tšhipi {{15} 550 le 600 Degree , le matla a mogote a phahame ho feta a bead leseli 'mele chesang tšepe . LCRL 3,2 CRL 3,1CRLLMOV le 1CRL2WMOV na phahameng creep ho hanyetsa le babatsehang thothometsa elimination tlase 500 tekanyo , e leng e loketseng ea blades, hape Steel.4CR9SI2,4CRL0SI2MO di šomišwa kudu bakeng sa go dira di-valve tša go ntšha moya tša entšene tšeo di nago le themperetšha ya ka tlase ga 750℃, ka gona e bitšwa gape tšhipi ya valve ya moya.
C . austenitic mogote matla a tšepe e tšoauoa ka tlaase (bohareng) khabone, wc=0.1% ~ 0.4%; gomme e na le dikarolo tša godimo tša CR, NI tša motswako. CR le NI di kaonafatša go lwantšha oxidation le go kaonafatša maatla a phišo; Cr, W, Mo; Cr, W, Mo le Ti.
Dika tša kalafo ya phišo ke: kalafo ya tharollo ye e tiilego (go ruthetša go fihla go 1000℃ka morago ga go fodiša oli goba go fodiša meetse) {{1} ~ 100℃godimo go feta kalafo e tee goba tše pedi tša botšofadi, pula go tšwa mo kgatong ya go tiiša, e tiiša mokgatlo wa tšhipi, gomme e kaonafatša gape maatla a go fiša a go oketša a go oketša (1 cr14nil20000000000000022) Motswako Carbide (4CR14NIL4W2MO Tšepe) . .
Nomoro e tlwaelegilego ya leina ke 1crl8ni9ti le 4CRL4NIL4W2MO, gomme themperetšha ya tšhomišo e tloga go 600 go ya go 700℃. mohuta wo wa tšhipi o okeletšwa motheong wa tšhipi e sa tswakwego ya austenitic w, mo, v, tl, Ni, AL le dielemente tše dingwe, yeo e dirišitšwego go matlafatša austenite, go bopa tšhipi le tšhipi, e le ka gare ga tšhipi le tšhipi. The austenite lattice segokanyipalo ke kgolo ho feta ferrite, le athomo tlama matla a ke kgolo, phatlalatso ya motsoako elements ka austenite ke butle, kahoo mofuta ona oa tšepe eseng feela phahameng mogote matla, empa hape polasetiki phahameng, thata, molemo weldability, formability, kopantswe le mokhatlo o le mong-phase austenitic mokhatlo o motle, 'me o na le sekhoho se setle se seholo.
The antioxidant sebetsa mocheso oa 1crl8ni9ti tšepe ka fihla 700 ~ 900 tekanyo , 'me e na le matla a mogote a lekaneng ka hoo e ka bang 600 tekanyo , e leng ka sebediswa ho etsa boiler superheater pipe le ka sehloohong mouoane phaephe ka tlase ho 610 tekanyo e .4crl4nil4w2mo e tloaelehileng e tlwaelehileng , 61} e tloaelehileng e le ultra-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-} Superheater pipe ya mouoane turbine, ka sehloohong mouoane pipe, le ka hare ho tuka ga molelo enjene monate belofo, mouoane kapa khase pipe le sebetsa mocheso ka hare ho fapaneng ya 650 ~ 750 tekanyo e .
