Saph370 Tshuaj muaj pes tsawg leeg
Oct 21, 2022
Khoom Description
Kev tsim cov txheej txheem ntawm SAPH310 Steel
SAPH310 steel yog ib hom kub dov hlau siv hauv kev lag luam tsheb rau ntau yam kev siv. Cov txheej txheem tsim khoom ntawm SAPH310 suav nrog ob peb kauj ruam los xyuas kom meej nws qhov zoo thiab kev ua haujlwm.
Thawj kauj ruam yog xaiv cov khoom siv raw. High-quality hlau ore, coke, thiab limestone yog siv los ua cov ntaub ntawv tseem ceeb. Cov no tau ua tib zoo xaiv los xyuas kom meej tias lawv ua tau raws li cov khoom tsim nyog rau SAPH310 steel.
Tom qab ntawd, cov ntaub ntawv raw yog melted nyob rau hauv ib lub qhov cub tawg. Lub molten hlau yog ces refined kom tshem tawm impurities thiab kho cov tshuaj muaj pes tsawg leeg. Lub refined molten hlau yog ces pauv mus rau ib tug nruam casting tshuab.
Nyob rau hauv cov txheej txheem nruam nruam, cov hlau molten yog nchuav rau hauv pwm thiab txias los ua ib lub slab ntev. Lub slab yog ces reheated thiab dhau los ntawm ib tug series ntawm rollers kom txo nws cov thickness thiab zoo li nws mus rau hauv daim ntawv xav tau. Cov txheej txheem kub dov no pab ua kom zoo dua cov qauv ntawm cov hlau thiab txhim kho nws cov khoom siv kho tshuab.
Tom qab kub dov, cov hlau yuav dhau los ua haujlwm ntxiv xws li txias dov, kho cua sov, lossis kho qhov chaw. Txias dov tuaj yeem siv los txo qhov tuab ntawm cov hlau thiab txhim kho nws qhov chaw tiav. Kev kho cua sov tuaj yeem siv los kho cov khoom siv kho tshuab ntawm cov hlau, thaum kho qhov chaw tuaj yeem siv los tiv thaiv cov hlau los ntawm corrosion.
Thoob plaws hauv cov txheej txheem tsim khoom, kev ntsuas kev tswj kom zoo yog siv rau txhua theem. Qhov no suav nrog tshuaj ntsuam xyuas cov khoom siv raw thiab cov hlau molten, tshuaj xyuas cov slabs thiab cov khoom dov rau qhov tsis xws luag, thiab kuaj cov khoom siv ntawm cov khoom tiav. Tsuas yog cov hlau uas ua tau raws li cov qauv tsim nyog tau raug tso tawm rau kev siv.
Hauv kev xaus, cov txheej txheem tsim khoom ntawm SAPH310 steel koom nrog ntau cov kauj ruam los xyuas kom meej nws qhov zoo thiab kev ua tau zoo. Los ntawm kev xaiv cov khoom siv raw mus rau qhov kawg ntawm kev tswj xyuas qhov zoo, txhua kauj ruam yog qhov tseem ceeb hauv kev tsim cov hlau uas ua tau raws li qhov xav tau ntawm kev lag luam tsheb.
Saph370 steel yog ib hom kub dov steel ntawv feem ntau siv hauv kev lag luam tsheb. Nkag siab txog nws cov tshuaj muaj pes tsawg leeg yog qhov tseem ceeb rau kev txiav txim siab nws cov khoom thiab tsim nyog rau ntau yam kev siv.
Cov tshuaj muaj pes tsawg leeg ntawm Saph370 steel feem ntau suav nrog cov hauv qab no:
Cov pa roj carbon (C)
Carbon yog ib qho tseem ceeb hauv cov hlau vim nws muab lub zog thiab hardness. Hauv Saph370 steel, cov ntsiab lus carbon kuj tsawg, feem ntau yog li ntawm 0.05% mus rau 0.15%. Cov ntsiab lus qis carbon no pab ua kom zoo formability thiab weldability thaum tseem muab lub zog txaus rau ntau daim ntawv thov.
Manganese (Mn)
Manganese ntxiv rau hlau los txhim kho nws lub zog, toughness, thiab hardenability. Hauv Saph370 steel, cov ntsiab lus manganese feem ntau yog li ntawm 0.50% txog 1.50%. Manganese kuj tseem pab tiv thaiv qhov tsis zoo ntawm cov sulfur, uas tuaj yeem ua rau kub luv luv hauv cov hlau.
Silicon (Si)
Silicon yog ntxiv rau hlau los txhim kho nws lub zog thiab oxidation tsis kam. Hauv Saph370 steel, cov ntsiab lus silicon feem ntau nyob ntawm 0.10% txog 0.50%. Silicon kuj tseem pab txhawb kev tsim cov microstructure zoo, uas tuaj yeem txhim kho cov khoom siv ntawm cov hlau.
Phosphorus (P)
Phosphorus yog ib qho impurity hauv cov hlau uas tuaj yeem cuam tshuam tsis zoo rau nws cov khoom siv kho tshuab thiab weldability. Hauv Saph370 steel, cov ntsiab lus phosphorus feem ntau txwv tsawg dua 0.035%. Tsis tshua muaj phosphorus qib pab kom zoo ductility thiab toughness.
Sulfur (S)
Sulfur yog lwm impurity nyob rau hauv steel uas yuav ua rau kub shortness thiab txo cov ductility thiab weldability ntawm cov khoom. Hauv Saph370 steel, cov ntsiab lus sulfur feem ntau txwv tsawg dua 0.035%. Cov qib sulfur tsawg pab ua kom cov khoom siv zoo thiab cov yam ntxwv ua haujlwm.
Aluminium (Al)
Aluminium yog qee zaum ntxiv rau cov hlau kom deoxidize cov yaj thiab txhim kho kev huv ntawm cov hlau. Hauv Saph370 steel, cov ntsiab lus txhuas yuav nyob ntawm 0.01% txog 0.05%. Aluminium kuj tseem tuaj yeem pab txhawb kev tsim ntawm cov nplua-grained microstructure.
Ntxiv nrog rau cov ntsiab lus tseem ceeb no, Saph370 steel kuj tseem muaj cov lej ntawm lwm cov ntsiab lus xws li chromium, npib tsib xee, tooj liab, thiab molybdenum. Cov ntsiab lus no tuaj yeem muab ntxiv los txhim kho cov khoom tshwj xeeb xws li corrosion kuj, hardenability, lossis lub zog.
Cov tshuaj muaj pes tsawg leeg ntawm Saph370 steel tuaj yeem sib txawv nyob ntawm cov chaw tsim khoom thiab cov ntawv thov. Txawm li cas los xij, los ntawm kev tswj cov qib ntawm cov ntsiab lus no, cov tuam ntxhab tuaj yeem tsim cov hlau nrog cov khoom sib xws uas ua tau raws li cov kev xav tau ntawm kev lag luam tsheb thiab lwm yam kev siv.
Hauv kev xaus, kev nkag siab txog cov tshuaj muaj pes tsawg leeg ntawm Saph370 steel yog qhov tseem ceeb rau kev txiav txim siab nws cov khoom thiab tsim nyog rau ntau yam kev siv. Los ntawm kev ua tib zoo tswj cov qib ntawm carbon, manganese, silicon, phosphorus, sulfur, thiab lwm yam, manufacturers tuaj yeem tsim cov hlau uas xav tau lub zog, formability, weldability, thiab lwm yam ntxwv.
