Dab tsi Cored Wire Tiag Ua hauv Ladle
Cored hlau yog ib qho kev xa khoom, tsis yog ib qho hlau. Powdered alloy los yog hlau ntshiab yog encased nyob rau hauv ib tug nyias steel sawb thiab txhaj rau hauv lub yaj nrog ib tug hlau feeder, yog li cov additive yog tso rau hauv qab lub slag txheej es tsis txhob ntab saum thiab hlawv nyob rau hauv cov huab cua. Cov txiaj ntsig ntawm cov txheej txheem yog rov qab: cov ntsiab lus reactive xws li calcium thiab magnesium muaj cov ntsiab lus qis, thiab pub rau lawv sib sib zog nqus mus rau hauv cov hlau los yog hlau los ntawm cov hlau muab cov khoom nyob rau lub sij hawm nyob rau hauv ib lub pob ntxiv tsis tuaj yeem. Qhov kev xaiv ntawm cov tub ntxhais chemistry tom qab ntawd ua raws li cov haujlwm metallurgical, txawm tias yog deoxidation, desulphurisation, suav nrog kev tswj cov duab, inoculation ntawm grey hlau los yog spheroidisation ntawm cov hlau hlau.
Core Chemistry thiab Txoj Haujlwm Nws Ua
| Core hom | Nominal muaj pes tsawg leeg | Hom dej num |
|---|---|---|
| Calcium silicon cored hlau | Ca 30 feem pua, Si 60 feem pua; kuj Ca 28 feem pua, Si 55 feem pua | deoxidation thiab kev hloov pauv hauv cov hlau |
| Ntshiab calcium cored hlau | Ca 98% yam tsawg kawg nkaus | desulphurisation thiab inclusion shape control |
| Calcium hlau cored hlau | Ca 30 feem pua tsawg kawg, sib npaug hlau | calcium kev kho mob qhov twg ib tug ntom core yog nyiam |
| Ferrosilicon magnesium cored hlau | Si 40 mus rau 46 feem pua, Mg 25 mus rau 30 feem pua, tsis tshua muaj ntiaj teb 2 feem pua | spheroidization ntawm ductile hlau |
| Ferrosilicon cored hlau | Si 72 rau 75 feem pua | inoculation thiab silicon hloov |
| Magnesium cored hlau | Mg hlau core | desulphurisation thiab nodularising |
Cov tub ntxhais alloys lawv tus kheej raug them los ntawm cov qauv kev lees paub: calcium silicon los ntawm GB / T 3419, ferrosilicon los ntawm GB / T 2272 thiab ISO 5445, thiab manganese hlau los ntawm GB / T 2774. Kev yuav khoom tshwj xeeb yuav tsum hais txog cov qauv hlau alloy, tom qab ntawd ntxiv cov hlau tsis sib xws uas tus qauv tsis npog.
Hlau Parameters uas txiav txim siab rov qab
Peb lub cev tsis muaj teeb meem ntau npaum li cov chemistry tseem ceeb. Txoj kab uas hla teev cov tub ntxhais loj npaum li cas tuaj yeem xa mus rau ib lub 'meter' thiab ceev npaum li cas cov hlau tuaj yeem nkag mus rau hauv cov yaj yam tsis muaj kinking. Sau piv, qhov loj ntawm cov tub ntxhais ib 'meter' ntawm hlau, yog daim duab los tsocai rau ntawm qhov kev txiav txim; ib tug nominal 9 hli ntshiab calcium hlau nqa 58 mus rau 68 grams ntawm calcium ib 'meter' coj txawv txawv heev ntawm ib tug sib dua - puv hlau ntawm tib txoj kab uas hla. Sawb thickness thiab seam tsim txiav txim siab seb cov hlau puas muaj sia nyob ntawm cov khoom siv yob thiab cov slag nkag; seamless los yog xauv- seam tsim yog qhov zoo dua qhov twg cov tub ntxhais ya raws khaws lossis qhib - seam splitting yog ib qho kev txhawj xeeb. Cov ntsiab lus noo noo ntawm cov tub ntxhais yuav tsum tau tswj hwm, vim tias hydrated calcium los yog magnesium compounds tso roj thiab tsim porosity thiab pinholes hauv cov khoom cam khwb cia.
Siv Tus Nqi Theem rau Cored Hlau
Cov lus hauv qab no sau cov lus hais tawm hauv Suav teb rau 10 Lub Kaum Hli. Export qib yog USD ib tonne FOB Tianjin Chaw nres nkoj; Cov qib hauv tsev yog yuan ib tonne suav nrog se thiab tsis ncaj qha piv nrog cov nqi xa tawm.
| Export khoom | Index | Nqe: USD/tonne FOB Tianjin |
|---|---|---|
| Calcium silicon cored hlau | Ca30Si60, dia . 13 mm | 1,300-1,330 Nws |
| Calcium silicon cored hlau | Ca28Si55, dia . 13 mm | 1,150-1,180 Nws |
| Ntshiab calcium cored hlau | Ca 98% yam tsawg kawg nkaus, dia. 9 hli, 58 txog 68 g Ca/m | 1,420-1,490 Nws |
| Cov khoom siv hauv tsev, yuan / tonne suav nrog se | Thaj tsam | Kev siv ntau yam |
|---|---|---|
| Calcium silicon hlau Ca30Si58, dia{2}} hli | Jiangsu | 9,200-9,400 Nws |
| Calcium silicon hlau Ca28Si55, dia{2}} hli | Henan | 8,200-8,400 Nws |
| Khoom ntshiab calcium hlau Ca 98 feem pua yam tsawg kawg nkaus, dia. 9 hli | Zhejiang, Henan, Jiangsu | 10,200-10,600 Nws |
| Seamless hlau calcium hlau Ca 97 rau 98 feem pua, dia. 9 hli, sawb 1.0 hli | Shandong | 10,000 txog 10,300 |
| Seamless hlau calcium hlau Ca 97 rau 98 feem pua, dia. 9 hli, sawb 1.0 hli | Henan, Inner Mongolia | 9,700 txog 10,000 |
| Spheroidised hlau Si42-46 Mg25 RE2, dia. 13 hli | Sab hauv Mongolia | 9,400-9,600 Nws |
| Spheroidised hlau Si40 Mg30 RE2, dia. 13 hli | Liaoning | 10,100 txog 10,500 |
| Calcium hlau hlau FeCa30 yam tsawg kawg nkaus, dia. 13 hli | Jiangsu thiab Henan | 9,100-9,200 Nws |
Kev Xyaum pub noj thiab tswj tau dab tsi
Kev rov qab los ntawm cov khoom reactive yeej tsis ncav cuag cov khoom noj. Calcium boils ntawm txog 1,484 C, yog li ib feem ntawm cov tub ntxhais yoojyim yaj li vapor npuas thiab khiav los ntawm cov slag, thiab tsuas yog ib feem dissolves rau hauv cov hlau. Kev xyaum yog li ntawd tsom ntsoov rau kev txwv tsis pub: pub tus nqi sib npaug rau cov kab kab uas hla kom cov kab nrib pleb melts ntawm kev tswj qhov tob, zoo ib yam hlau nkag lub kaum sab xis, txaus ladle qhov tob tshaj qhov kev txhaj tshuaj, thiab cov slag uas muaj dej txaus kom cov npuas khiav tsis muaj hlau. Rau kev kho cov hlau ductile, magnesium rov qab yog nyob ntawm cov tshuaj tiv thaiv chamber lossis sandwich txoj kev siv thiab ntawm kev kho kub; Kev ntsuas nodularity thiab daim ntawv graphite ntawm cov qauv cam khwb cia yog cov kev tswj xyuas niaj hnub, nrog daim ntawv graphite ntsuas siv cov kab kos siv ISO 945-1 thiab ASTM A247.
Kev Tswj Xyuas Zoo thiab Cov Ntaub Ntawv
Rau txhua pawg, cov ntaub ntawv muaj txiaj ntsig yog cov ntsiab lus tseem ceeb tau txheeb xyuas ntawm tus qauv qauv, sau qhov loj ntawm ib 'meter', strip thickness thiab tensile lub zog, hlau txoj kab uas hla thiab ovality, core noo noo, thiab packing mob. Cov coils yuav tsum tau muab nkag rau ntawm cov hlua khi nrog cov hlau kom qhuav thiab tiv thaiv, vim tias ya raws absorbed hauv kev thauj mus los tsim porosity hauv thawj heats tom qab xa khoom. Daim ntawv pov thawj uas hais tias tsuas yog qib alloy tsis muaj qhov ntim ntawm ib lub 'meter' tsis tiav, vim tib qib tuaj yeem muab tau ntawm cov qib sib txawv thiab tom qab ntawd yuav coj txawv txawv ntawm cov khoom noj.
Cov lus nug nquag
Q:Vim li cas siv cored hlau es tsis txhob tso cov hlau nplaum rau hauv lub ladle?
A: Vim tias cov hlau tso tawm cov hlau hauv qab lub slag thiab tob hauv cov yaj. Reactive cov ntsiab lus xws li calcium thiab magnesium nce lub sijhawm nyob thiab rov qab los, thiab qhov sib ntxiv ua kom rov ua dua tom qab cua sov.
Q:Dab tsi yog qhov tseem ceeb tshaj plaws ntawm kev txiav txim cored?
A: Sau qhov loj ntawm cov tub ntxhais hauv ib lub 'meter' ntawm cov hlau, ua ke nrog cov tub ntxhais tsom xam thiab txoj kab uas hla. Txoj kab uas hla ib leeg tsis piav qhia ntau npaum li cas cov khoom siv hluav taws xob xaim xaim.
Q:Puas yog cov hlau calcium ntshiab haum rau desulphurisation qis -sulfur steel?
A: Nws yog siv rau kev kho calcium thiab kev tswj xyuas cov duab, thiab calcium muaj kev sib raug zoo rau sulphur. Qhov kev txwv tsis pub tshaj yog qhov kub ntawm cov calcium uas tsis tshua muaj, yog li kev txhaj tshuaj sib sib zog nqus thiab tswj tus nqi noj yog qhov tseem ceeb.
Q:Yuav siv cov hlau li cas xam rau lub tshav kub?
A: Los ntawm lub hom phiaj ntxiv ntawm cov khoom nquag, cov khoom ntim ib 'meter' thiab qhov xav tau rov qab los. Kev rov qab yuav tsum tau muab los ntawm cov ntaub ntawv cog rau tib lub xaim, ladle thiab kev xyaum es tsis yog los ntawm daim duab generic.
Q:Ib lub feeder puas tuaj yeem khiav ntau hom hlau?
A: Feem ntau yog, tab sis tus tsav rolls, straightener thiab guide tube yuav tsum tau teem rau qhov tseeb txoj kab uas hla thiab strip stiffness, thiab tus nqi pub yuav tsum tau re-tuned. Crushed los yog kinked hlau ua rau inconsistent ntxiv thiab tuaj yeem thaiv qhov txhaj tshuaj lance.
Q:Dab tsi ua rau porosity tom qab xaim ntxiv?
A: Feem ntau cov dej noo nqa nrog lub hauv paus, los yog ib qho slag uas tuab dhau los tso roj. Qhuav lub hauv paus, sealing lub kauj thiab tswj slag fluidity tshem tawm feem ntau ntawm cov teeb meem.