Cov ntsiab lus ntxiv rau cov hlau tsis pub dawb suav nrog S, Pb, Ca thiab P. Lawv lub luag haujlwm tseem ceeb yog raws li hauv qab no:
1. Lub luag haujlwm ntawm leej faj
Sulfur forms MnS suav nrog Mn hauv cov hlau, uas tuaj yeem cuam tshuam qhov txuas ntxiv ntawm matrix, ua rau cov chips yooj yim tawg, thiab txo qhov chaw sib cuag ntawm cov chips thiab cov cuab yeej. Sulfur kuj tuaj yeem txo kev sib txhuam thiab tiv thaiv cov chips los ntawm kev ua raws li kev txiav ntug. Txawm li cas los xij, muaj leej faj tuaj yeem ua rau cov hlau kub thiab nkig, yog li cov ntsiab lus sulfur feem ntau txwv rau qhov ntau ntawm w(s) = 0.10% ~ 0.30%, thiab Mn cov ntsiab lus yuav tsum tau nce kom haum rau nws.
2. Lub luag haujlwm ntawm cov hlau lead
Qhov sib ntxiv ntawm Pb tuaj yeem txhim kho kev ua haujlwm ntawm cov hlau. Txij li thaum Pb tsis yaj rau hauv ferrite hauv hlau thiab tsis tsim cov tebchaw, nws nyob hauv lub xeev dawb thiab tsim cov khoom zoo (2 ~ 3μm) uniformly faib rau hauv cov qauv matrix. Thaum lub tshav kub tsim thaum lub sij hawm txiav mus txog lub melting point ntawm Pb hais, nws yog nyob rau hauv ib tug molten lub xeev thiab dhau los ua "lubricant" ntawm lub cuab yeej thiab cov chips thiab nruab nrab ntawm lub cuab yeej thiab lub workpiece nto, txo cov kev sib txhuam, lub cuab tam kub, thiab hnav. Tus nqi ntawm Pb ntxiv yog nyob rau hauv thaj tsam ntawm w(Pb) = 0.1% ~ 0.35%.
3. Lub luag haujlwm ntawm calcium
Ca tuaj yeem tsim Ca thiab Al silicate suav nrog hauv cov hlau, uas ua raws li cov cuab yeej los tsim cov yeeb yaj kiab nyias, muaj kev sib txhuam-txo cov nyhuv, thiab tiv thaiv cov cuab yeej hnav. Tus nqi ntawm Ca ntxiv yog feem ntau w(Ca) = 0.001% ~ 0.005%.
4. Lub luag haujlwm ntawm phosphorus
P yog ntxiv rau sulfur-muaj dawb-txiav steel kom yaj nws hauv ferrite, ua kom muaj zog thiab embrittlement los txhim kho nws cov kev ua tau zoo. Txhawm rau tiv thaiv "txias brittleness", w(P) tau teev tseg yog ≤0.15%.
Qhov sib ntxiv ntawm cov ntsiab lus no tuaj yeem txhim kho qhov zoo ntawm qhov chaw ua haujlwm thiab txuas ntxiv lub neej kev pab cuam ntawm lub cuab yeej.

Yog tias koj xav tau cov ntaub ntawv ntxaws ntxiv, nws raug nquahu kom sab laj nrog peb rau cov ncauj lus kom ntxaws txog cov kev qhia tshwj xeeb thiab kev siv cov hlau alloy steel tuav.

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Dawb-txiav steel feem ntau yog siv los ua cov twj paj nruag, saib qhov chaw, tsheb, cov cuab yeej siv tshuab thiab lwm yam tshuab uas muaj kev ntxhov siab me me tab sis cov kev cai nruj ntawm qhov loj thiab roughness; Cov khoom siv nrog cov kev cai nruj me ntsis ntawm qhov tseeb thiab qhov ntxhib, tab sis kuj tsis tshua muaj kev xav tau ntawm cov khoom siv kho tshuab, xws li lub zog, ncej, bolts, li qub, bushings, pins, yeeb nkab txuas, lub rooj zaum caij nplooj ntoos hlav thiab tshuab cuab yeej screws, yas molding pwm, phais thiab kho hniav twj paj nruag, thiab lwm yam.

Daim ntawv thov tseem ceeb

1.Fluid / Gas xa, steel qauv, Kev tsim kho;
2.ROYAL GROUP ERW / Welded round carbon steel kav, uas muaj qhov zoo tshaj plaws thiab muaj peev xwm muaj peev xwm tau siv dav hauv cov qauv hlau thiab kev tsim kho.

Nco tseg:
1.Free sampling, 100% tom qab-muag kev ruaj ntseg zoo, Txhawb txhua txoj kev them nyiaj;
2.Tag nrho lwm yam specifications ntawm round carbon steel kav muaj raws li koj yuav tsum tau (OEM & ODM)! Tus nqi Hoobkas koj yuav tau txais los ntawm ROYAL GROUP.

Daim Ntawv Loj

Txheej txheem ntau lawm

molten hlau magnesium-raws li desulfurization-sab saum toj-hauv qab rov tshuab converter-alloying-LF refining-calcium noj kab-mos tshuab-nruab nrab-broadband pa kab sib chaws slab nruam casting-cam khwb cia slab txiav Ib lub cua sov rauv, ib tug ntxhib dov, 5 passes, dov, 7 kub preservation, kev tswj thiab kev tswj laminar ntws txias, coiling, thiab ntim.

Kev tshuaj xyuas cov khoom

Kev thauj mus los

Kev thauj mus los:Kev nthuav qhia (Sample Delivery), Cua, Rail, Av, Hiav Txwv shipping (FCL lossis LCL lossis Tej)

FAQ

Q: yog ua manufacturers?

A: Yog, peb yog cov chaw tsim khoom. Peb muaj peb lub Hoobkas nyob hauv Daqiuzhuang Village, Tianjin City, Suav. Dhau li ntawd, peb koom tes nrog ntau lub xeev cov lag luam, xws li BAOSTEEL, SHOUGANG GROUP, SHAGANG GROUP, thiab lwm yam.

Q: Kuv puas tuaj yeem muaj kev txiav txim siab tsuas yog ob peb tons?

A: Tau kawg. Peb tuaj yeem xa cov khoom thauj rau koj nrog LCL servivece.(tsawg lub thawv ntim)

Q: Koj puas muaj kev them nyiaj zoo tshaj?

A: Rau kev txiav txim loj, 30-90 hnub L / C tuaj yeem lees txais.

Q: Yog cov qauv dawb?

A: Qauv dawb, tab sis tus neeg yuav khoom them tus nqi thauj khoom.

Q: Koj puas yog tus muag khoom kub thiab ua kev lag luam ruaj ntseg?

A: Peb xya xyoo tus neeg muag khoom txias thiab lees txais kev lag luam ruaj khov.Peb feem ntau yuav txaus siab rau peb cov neeg siv khoom hwm nrog peb cov khoom zoo tshaj, zoo heev muag nqi thiab lub tuam txhab zoo vim peb muaj ntau tus kws tshaj lij thiab kev ua haujlwm ntau dua thiab ua tau raws li tus nqi tsim nyog rau Tuam Tshoj HRB400 HRB500 Hrb500e Deformed Round Round Round Steel Rebar Rebar. Carbon Steel Flat Corrugated Tmt Bar, Puas yog koj tseem tab tom nrhiav rau cov khoom lag luam zoo uas ua raws li koj lub koom haum zoo heev thaum nthuav koj cov khoom ntau? Xav txog peb cov khoom zoo. Koj qhov kev xaiv yuav ua pov thawj tias ntse!
Professional Tuam Tshoj Tuam Tshoj Steel Bar thiab Rebar, Yog hais tias koj xav tau ib yam ntawm peb cov khoom, los yog muaj lwm yam khoom yuav tsum tau ua, xyuas kom meej tias koj xa peb cov lus nug, cov qauv los yog nyob rau hauv qhov tob drawings. Meanwhile, aiming los txhim kho mus rau hauv ib tug thoob ntiaj teb enterprise pab pawg neeg, peb cia siab tias yuav tau txais kev muab kev koom tes ventures thiab lwm yam kev koom tes tej yaam num.