Hlau yog ib tug hlau - pa roj carbon alloy nrog cov ntsiab lus carbon ntawm 0.028% rau 2.11%. Txhawm rau kom ntseeg tau tias nws cov kev nruj thiab cov yas, cov ntsiab lus carbon ntau feem ntau tsis ntau tshaj li 1.7%. Ntxiv rau cov hlau thiab carbon thiab carbon, lub ntsiab ntawm cov hlau yog silicon, manganese, sulfur thiab phosphorus. Muaj ntau txoj hauv kev los cais cov hlau. Niaj hnub no peb yuav ua tibzing cov cai ntawm cov hlau.
01
Carbon txheem hlau qauv hlau
Tus Qauv Sawv Cev: Q + Tooj + (Cov Cim Qiv (Cov cim zoo) + (Deoxidation Txujcation cim) + (tshwj xeeb homcem cim).
Tus lej Steel yog prefixed nrog "Q", uas sawv cev rau cov txiaj ntsig taw tes ntawm cov hlau.
Cov naj npawb tom qab "Q" sawv cev rau cov zaub mov tau tus nqi hauv MPA. Piv txwv li, Q235 sawv cev rau cov qauv roj carbon ua hlau nrog cov txiaj ntsig tau (σs) ntawm 235 MPa.
Tsim nyog, tus lej Steel tuaj yeem cim nrog cov cim qhia txog qib qis thiab Dazidation. Cov cim qib theem yog A, B, C, thiab D feem.
Deoxidation Txoj Kev Cim Qauv: F rau rimmed hlau; b rau semi -} tua cov hlau; Z rau tua cov hlau; Tz rau cov hlau tshwj xeeb. Kev tua cov hlau tuaj yeem tsis ncaj ncees, uas yog, ob qho tib si z thiab tz tuaj yeem tsis muaj peev xwm. Piv txwv li, Q235-af sawv cev chav kawm cov hlau rimmed.
Cov hlau ua hlau rau cov hom phiaj tshwj xeeb: xws li tus choj steel, shrosters hlau, thiab lwm yam khoom siv tau qhia lub hom phiaj thaum kawg ntawm tus lej Steel.
02
High - Zoo Carbon Qauv Hlau
Cov Qauv Sawv Cev: Tus lej + (Cim Cim) + (Deagidation Txujcab Cim) + (cim rau lub hom phiaj tshwj xeeb).
① Thawj ob tus lej ntawm tus lej Steel sawv cev rau cov ntsiab lus carbon ntawm cov hlau, qhia nyob rau hauv kaum txhiab cov ntsiab lus carbon nruab nrab. Piv txwv li, cov hlau nrog cov ntsiab lus nruab nrab ntawm cov ntsiab lus ntawm 0.45% muaj tus lej steel ntawm "45". Nws tsis yog ib tus lej, yog li nws tsis tuaj yeem nyeem raws li steel tsis . 45.
② Rau high - Zoo carbon cov qauv hlau nrog cov ntsiab lus manganese ntau yuav tsum tau cim, xws li 50mn.
③ Steel Boiling, semi- tua cov hlau txheem zoo yuav tsum tau cim tshwj xeeb ntawm qhov kawg ntawm tus lej Steel. Piv txwv li, tus lej steel ntawm semi- tua cov hlau nrog cov ntsiab lus nruab nrab ntawm cov ntsiab lus carbon 0.1% yog 10b.
03
Carbon Tool Steel
Txoj kev sawv cev: tsab ntawv T + Tooj + (cim cim) + (cov cim qib qis).
① Tus lej Steel yog ua ntej nrog "T" kom zam dhau kev tsis meej pem nrog lwm hom steel.
Tus lej hauv tus lej Steel qhia tau cov ntsiab lus carbon, qhia nyob rau txhiab txhiab ntawm cov ntsiab lus ntawm cov pa roj carbon nruab nrab. Piv txwv li, "T8" txhais tau hais tias cov ntsiab lus muaj roj carbon nruab nrab yog 0.8%.
Rau cov uas muaj cov ntsiab lus ntau dua manganese, "mn" yog cim tom kawg ntawm tus lej Steel, xws li "T8MN".
④ phosphorus thiab cov sulfur cov ntsiab lus ntawm high - zoo carbon Tool steel yog qis dua uas General Siab Carlbon Tool steel. Tsab ntawv "A" yog ntxiv rau ntawm qhov kawg ntawm tus lej Steel kom paub qhov txawv nws, xws li "T8mna".
04
Dawb -} Txiav Hlau
Txoj kev sawv cev: tsab ntawv y + tooj + (cim cim).
① Tus lej Steel yog prefixed nrog "Y" kom paub qhov txawv ntawm nws los ntawm high - zoo carbon qauv hlau.
Tus lej tom qab tsab ntawv "Y" qhia cov ntsiab lus carbon, uas tau qhia nyob rau ntawm kaum txhiab tus neeg nruab nrab cov ntsiab lus. Piv txwv li, qhov pub dawb {{- Al} Txiav hlau nrog cov ntsiab lus nruab nrab ntawm cov ntsiab lus carbon ntawm 0.3% muaj tus lej steel ntawm "y30".
Rau cov uas muaj cov ntsiab lus manganese siab dua, "MN" tseem cim tom qab tus lej Steel, xws li "y40mn".
05
Alloy Qauv Hlau
Cov Qauv Sawv Cev: (Cov Cim Tshwj Xeeb) + Tus lej + Lub Cim Tseem Ceeb
① Thawj ob tus lej ntawm tus lej Steel qhia tias cov ntsiab lus carbon ntawm cov hlau, uas tau qhia nyob rau hauv kaum txhiab cov ntsiab lus carbon, xws li 40cr.
② Cov ntsiab lus tseem ceeb hauv cov hlau, tshwj tsis yog cov neeg micro -} alloy cov ntsiab lus, feem ntau yog feem ntau qhia hauv feem pua. Thaum nruab nrab alloy cov ntsiab lus yog<1.5%, the steel number generally only indicates the element symbol without indicating the content. However, in special cases where confusion is likely to occur, the number "1" can also be marked after the element symbol, such as the steel numbers "12CrMoV" and "12Cr1MoV". The former has a chromium content of 0.4%~0.6%, and the latter has a chromium content of 0.9%~1.2%. The rest of the components are the same. When the average alloy element content is ≥1.5%, ≥2.5%, ≥3.5%, etc., the content should be indicated after the element symbol, which can be expressed as 2, 3, 4, etc. For example, 18Cr2Ni4WA.
③ Alloy tseem xws li Vanadium v, titanium al, boron b, thiab tsis tshua muaj ntiaj teb rea - alloy. Txawm hais tias cov ntsiab lus yog tsawg heev, lawv yuav tsum tseem yog cim hauv tus lej Steel. Piv txwv li, hauv 20mnvb hlau: Vanadium yog 0.07% ~ 0.12%, thiab Boron yog 0.001% ~ 0.005%.
④ {- Cov hlau zoo dua "A" qhov kawg ntawm tus lej Steel kom paub qhov txawv ntawm nws los ntawm General siab {1} {1} {1} {1} {1}- zoo steel.
⑤ Rau alleoL txheej txheem hlau rau cov laj thawj tshwj xeeb, tus lej Steel yog ua ntej (lossis cov menyuam yaus los sawv cev lub hom phiaj ntawm cov hlau. Piv txwv li, 30crmnsi steel rau rivets thiab screws yog sawv cev los ntawm mL30cmnsi.
06
Tsawg -} allloy high-} lub zog steel
Cov Qauv Sawv Cev: (Cov Cim Tshwj Xeeb) + Tus lej + Lub Cim Tseem Ceeb
① Txoj kev sawv cev ntawm tus lej Steel yog ib qho zoo ib yam li ntawm alloy txheej txheem hlau.
② Rau kev tshaj lij qes qis -} ecoy siab - lub zog hlau, nws yuav tsum tau qhia ntawm qhov kawg ntawm tus lej Steel. Piv txwv li, 16mn steel, hom steel tshwj xeeb siv rau choj yog "16mnl", hom steel tshwj xeeb yog "16mnr".
07
Caij Nplooj Hlav Hlau
Caij nplooj ntoos hlav steel tuaj yeem muab faib ua ob pawg raws li kev siv tshuaj lom neeg: carbon caij nplooj ntoos hlav steel thiab alloy caij nplooj ntoos hlav hlau. Tus Steel qib sawv cev txoj kev sawv cev yog yeej zoo ib yam li high- Zoo carbon cov hlau, thiab tom kawg yog ib qho li alloy txheej txheem hlau.
08
Dov Cov Kabmob Hlau
Cov Kab Mob Sawv Cev: Cov Pa Nkab Chromium Cov Kabmob Hlau Hlau Hlau Hlau: Tsab Ntawv G + CR keeb cim thiab tus naj npawb; Carburized bearer steel: tsab ntawv g + lub cim tseem ceeb rau lub cim thiab tus lej + trace alloy keeb cim).
① Qib Steel yog prefixed nrog tsab ntawv "g" los qhia dov steel.
② Cov ntsiab lus carbon cov ntsiab lus ntawm cov roj carbon ntau chromium cov kab hlau tsis yog cim, thiab cov ntsiab lus chromium yog qhia nyob rau hauv txhiab txhiab, xws li GCR15. Tus Steel kawm sawv cev txoj kev ntawm carburass bearer steel yog ib qho zoo ib yam li ntawm alloy txheej txheem hlau.
09
Alloy tuam steel thiab siab - ceev txheej steel
① Thaum cov ntsiab lus ntawm cov ntsiab lus nruab nrab ntawm alloy tuam hlau loj dua los yog sib npaug ntawm 1.0%, cov ntsiab lus carbon tsis tau cim; Thaum nruab nrab cov ntsiab lus ntawm cov pa hluav taws xob<1.0%, it is expressed in thousandths. For example, Cr12, CrWMn, 9SiCr, 3Cr2W8V.
② txoj kev ntawm kev hais tawm cov ntsiab lus ntawm alloy cov ntsiab hauv cov hlau yog ib qho zoo ib yam li ntawm alloy txheej txheem hlau. Txawm li cas los xij, rau alloy tuam steel qib nrog cov ntsiab lus chromium tsawg, thiab ") ntxiv ua ntej cov ntsiab lus ntawm kev hais tawm cov ntsiab lus ntawm feem pua. Piv txwv li, CR06.
③ Qib Steel ntawm High Migh - Ceev tuam steel hlau feem ntau tsis qhia cov ntsiab lus carbon ntau, tab sis tsuas yog feem pua ntawm cov ntsiab lus nruab nrab ntawm ntau cov alloy ntsiab. Piv txwv li, tus qauv hlau ntawm tungsten siab- ceev hlau yog qhia raws li "W18CR4V". Tus qauv tus qauv nrog tsab ntawv "C" qhia tias nws cov ntsiab lus carbon ntau dua li cov qib steel yog yam tsis tau "C".
10
Stainless hlau thiab cua sov -} tiv taus hlau
① Cov ntsiab lus carbon nyob rau hauv qib steel yog qhia nyob rau hauv txhiab. Piv txwv li, nruab nrab cov ntsiab lus ntawm cov ntsiab lus ntawm "2cr13" yog 0.2%. Yog tias cov ntsiab lus carbon hauv cov hlau yog tsawg dua lossis sib npaug nrog 0.08%, tus lej ntawm tus lej ntawm 0.08%, tus lej ntawm tus lej (xws li, xws li (xws li li 00cr17NI1MO2, 0CR18 NI9, thiab lwm yam.
② Cov ntsiab lus tseem ceeb hauv cov hlau tau hais tawm hauv feem pua, thaum titanium, niobium, niS.}} alloy alloy txheej txheem hlau.
11
Vuam Rod Steel
Nws tus lej steel yog prefixed nrog tsab ntawv "H" kom paub qhov txawv ntawm lwm hom steel. Piv txwv li, stainless hlau vuam hlau yog "H2CR13", uas tuaj yeem txawv los ntawm stainless hlau "2C13".
12
Silicon Steel Rau Hluav Taws Xob Siv Hluav Taws Xob
① Tus lej siv hlau muaj cov tsiaj ntawv thiab cov lej. Tsab ntawv dr pib thaum pib ntawm tus lej Steel qhia tau kub-}}}} rolled oriented silicon steel rau hluav taws xob siv hluav taws xob.
Tus lej tom qab tsab ntawv qhia 100 lub sij hawm ntawm tus nqi Iron poob (W / kg).
Tsab ntawv "G" thaum kawg ntawm tus lej Steel qhia tias nws tau sim ntawm qhov loj; Yog tias "g" tsis ntxiv, nws qhia tau tias nws tau sim sim ntawm ib zaus ntawm 50 mus.
Piv txwv li, tus lej Steel DW470 qhia tau tias qhov siab tshaj plaws hlau poob tus nqi ntawm ib zaus ntawm 50 Hz yog 4.7W / KG.
13
Cov Hlau ntshiab rau siv hluav taws xob siv
Cov qib muaj cov tsiaj ntawv "DT" thiab lej. "DT" txhais tau tias cov hlau ntshiab rau siv hluav taws xob, thiab tus lej qhia tau cov qib sib txawv, xws li DT3. Cov ntawv sau ntxiv tom qab cov lej qhia txog cov khoom siv hluav taws xob: {{{{{{{}}} super, xws li DT8A.
