Hais txog chav ua noj riam steel, xaiv zoo dao yuav tsum xub kawm kom nkag siab txog cov khoom siv hlau, kom peb tuaj yeem dhau los ntawm ntau yam kev txiav cov cuab yeej ua los ntawm cov hlau zoo piv rau xaiv qhov tsim nyog rau lawv tus kheej siv cov riam hauv chav ua noj.
Cov cuab yeej steel,
—
Cov ntsiab lus.
Qhov tseeb tsis nyuaj, nyeem cov lus piav qhia hauv qab no, yuav nkag siab.
Raws li cov qauv kev lag luam, hlau thiab hlau yog hlau carbon alloy, qhov sib txawv tsuas yog nyob rau hauv cov ntsiab lus carbon ntawm qhov sib txawv, feem ntau cov ntsiab lus carbon tsawg dua 0.
Kev hu xov tooj dawb huv, wrought hlau lossis cov ntsiab lus ntawm 2% ntawm 0.
2 -
1.
7% ntawm cov hlau, cov ntsiab lus hauv 1.
Ntau tshaj 7% ntawm npua hlau.
Ntau hlau siab hardness, carbon cov ntsiab lus thiab tsis toughness.
Nrog tsawg carbon nyob rau hauv steel, hardness yog me ntsis tsis zoo, tab sis lub tensile lub zog yog zoo dua.
Sib ntaus sib tua-hardened yog folded forging hlau rov ua cua sov, ua rau steel pawg ntom ntom, homogeneous, impurities, thiaj li los txhim kho cov txheej txheem steel zoo.
Lwm cov ntsiab lus yuav ua kom sib txawv yog ntxiv rau cov hlau hauv hlau muaj cov yam ntxwv sib txawv.
· C -
Cov ntsiab lus ntawm cov pa roj carbon monoxide, tuaj yeem ua rau kom muaj zog thiab lub zog, tuaj yeem txo cov ductility thiab corrosion kuj, siab Cr -
Chromium, chromium tuaj yeem tsim ib hom kev pom tsis pom tab sis tuab heev chromium oxide zaj duab xis, tiv thaiv corrosion ntawm hlau, cov cuab yeej txiav kav ntev.
Qhov ntawd yog qhov zoo nkauj ntawm stainless hlau.
· Ni-
Nickel, tuaj yeem ua rau lub zog kub kub, tiv thaiv corrosion, txo tus nqi ntawm txias hardening, 430 stainless hlau: + 12% los yog ntau tshaj ntawm chromium hlau, tuaj yeem tiv thaiv oxidation los ntawm tej yam ntuj tso, hu ua stainless hlau, hauv jis, code -npe 430, yog li tseem hu ua 430 stainless hlau.
Tab sis 430 stainless hlau tsis tuaj yeem tiv taus cov tshuaj hauv huab cua los ntawm oxidation, 430 stainless hlau tsis nquag siv tom qab lub sijhawm, tseem yuav yog vim muaj lwm yam tsis yog oxidation ntuj (
Rust)
Qhov xwm txheej;
· 18-
8 stainless hlau, chromium hlau + 18% + 8% npib tsib xee, tshuaj tiv thaiv oxidation, stainless hlau hauv jis code rau 304, thiaj li hu ua 304 stainless hlau;
· 18-
Stainless hlau: tab sis cov tshuaj muaj pes tsawg leeg nyob rau hauv cov huab cua ntau dua, qee qhov chaw uas muaj kuab paug siab txawm tias 304 yuav xeb;
Yog li qee cov ntawv tshaj lij yuav siv 10% ntawm cov npib tsib xee los ua, txhawm rau ua kom nws ruaj khov thiab tiv taus corrosion, stainless hlau hu ua 18
10 stainless hlau.
Ntawm qee cov tais diav uas zoo sib xws '18 -
Kaum ntawm kev kho mob siab tshaj plaws stainless hlau '.
· 莫-
Cov ntsiab lus ntawm molybdenum, molybdenum ntsiab feem ntau ntxiv dag zog rau chromium hauv steel corrosion nyhuv, ua kom lub zog, oxide thiab corrosion kuj ntawm cov dej yog qhov zoo, ua kom cov hniav ntse rau lub sijhawm ntev, V -
Vanadium caij, lub caij vanadium nyob rau hauv steel muaj peev xwm mus acid oxygen, yog li cov vanadium hlau nrog crystallization seem yog ze-grained, ua steel muaj zog dua.
Ntawm no yog ib qho kev faib tawm ntawm cov hlau ntawm qib steel sib txawv nws muaj cov ntsiab lus thiab cov ntsiab lus tsis zoo ib yam, qhov no tau tsim cov hlau sib txawv tau siv sib txawv, coj tawm qhov zoo tshaj plaws hauv ib leeg.
1.
Hlau hlau -
Kuj hu ua me me hlau, cov ntsiab lus carbon yog 0.
10% rau 0.
30% ntawm cov pa roj carbon tsawg yog ib qho yooj yim los txais txhua yam kev ua xws li forging, vuam thiab txiav, feem ntau siv hauv cov saw hlau, rivet, bolts, ncej, thiab lwm yam.
2.
Medium carbon hlau -
Cov ntsiab lus carbon yog 0.
30% rau 0.
60%, txhawm rau ua kom hnyav forgings, qag, tsheb nqaj hlau, thiab lwm yam.
3.
High carbon hlau -
Feem ntau hu ua cov cuab yeej hlau, cov ntsiab lus carbon yog 0.
60% rau 1.
70%, hardening thiab tempering.
Rauj, crowbar, thiab lwm yam los ntawm cov ntsiab lus carbon yog 0.
75% ntawm kev tsim steel;
Cov cuab yeej txiav xws li laum, kais, reamer, thiab lwm yam los ntawm cov ntsiab lus carbon yog 0.
90% rau 1.
00% ntawm kev tsim steel.
4.
Hlau alloy -
Ntxiv lwm yam hlau xws li chrome hlau, npib tsib xee, tungsten, vanadium, thiab lwm yam, ua rau qee yam tshiab.
Vim muaj kev sib koom ua ke ntawm txhua yam ntawm cov ntsiab lus alloy, cov hlau alloy tuaj yeem tiv taus corrosion, kub resistant, hnav resistant, shockproof thiab txawv zog xws li tsis kam mus qaug zog.
5.
Kev kub ceev steel -
Muaj ntau yam khoom xyaw thiab feem, xws li tungsten, chromium, vanadium, cobalt thiab molybdenum, thiab lwm yam.
Cov cuab yeej txiav ua los ntawm HSS, muaj kev kub ceev rau kev txiav cov khoom nyuaj, thiab tuaj yeem dais muaj zog txiav.
Kev kub ceev steel txiav cuab yeej hauv kev kub ceev tseem tuaj yeem ua kom cov hniav ntse, lwm yam hlau yuav npub.
Ntawm no koj yuav tsum paub tias qib steel sib txawv yog txawv permutation thiab ua ke ntawm cov ntsiab lus, cov qib steel zoo siab thiab qis kuj yog nyob ntawm qhov permutation thiab ua ke ntawm cov ntsiab lus.
Feem ntau siv nyob rau hauv kev ua lag luam ntau riam chav ua noj yog 3 chromium (
Cr element)
, 4 chrome, ntawm chav kawm, cov qib siab ntawm steel nqi siab dua, muaj tseeb zoo dao yuav tsum kim.
Kawm kom pom cov hlau, kuj nkag siab qhov laj thawj ntawm qhov sib txawv ntawm tus nqi ntawm chav ua noj riam. Xaiv DaoHui muaj qee yam kev pab.
