Magnesium FerroSilicon

Tsis tshua muaj lub ntiaj teb magnesium silicon ferro alloy, feem ntau paub nyob rau hauv lub foundry kev lag luam raws li ib tug spheroidizing tus neeg saib xyuas, pab ib lub hom phiaj: hloov flake graphite rau hauv cov duab kheej kheej.

Yog vim li cas ductile hlau muaj zog dua grey cam khwb cia hlau (ntau zog thiab zoo toughness) yog vim hais tias cov graphite yog spherical, tsis flake -puab. Tus yuam sij rau "khoov" graphite rau hauv spheres yog tus neeg sawv cev spheroidizing.

Peb muab spheroidizing cov neeg ua haujlwm nrog cov ntsiab lus magnesium xws li 6% mus rau 11% thiab cov ntsiab lus tsis tshua muaj hauv ntiaj teb los ntawm 1.5% mus rau 8%, npog tag nrho cov kev xav tau los ntawm cov hlau zoo tib yam rau cua tshuab hluav taws xob.

"Hauv spheroidizing cov neeg ua haujlwm, magnesium yog lub luag haujlwm tseem ceeb rau spheroidization. Tab sis yog vim li cas ntxiv cov ntsiab lus tsis tshua muaj hauv ntiaj teb? Cov ntsiab lus tsis tshua muaj hauv ntiaj teb muaj peb yam txiaj ntsig:

 Anti-fading:Cov ntsiab lus tsis tshua muaj hauv ntiaj teb txuas ntxiv lub sijhawm spheroidization zoo. Tom qab kev kho mob nrog cov tshuaj spheroidizing zoo tib yam, cov nyhuv spheroidization ploj zuj zus mus rau lub sijhawm raws li cov hlau molten raug tso tseg. Ntxiv cov ntsiab lus tsis tshua muaj hauv ntiaj teb tuaj yeem ntau dua ob npaug ntawm lub sijhawm zoo. Qhov no yog tshwj xeeb tshaj yog ib qho tseem ceeb rau loj castings thiab castings nrog ntev pouring lub sij hawm.

 Purifying molten hlau:Cov ntsiab lus tsis tshua muaj hauv ntiaj teb muaj kev sib raug zoo rau cov pa oxygen, sulfur, thiab cov impurities tsis zoo (xws li cov hlau lead thiab bismuth) hauv cov hlau molten, zoo nqus thiab tshem tawm lawv, ua rau cov hlau molten huv si thiab siab dua - zoo castings.

 Txhim kho graphite morphology:Cov ntsiab lus tsis tshua muaj hauv ntiaj teb ua rau graphite spheres rounder, finer, thiab ntau yam zoo. Nrog tib tus nqi ntawm cov hlau molten, tus nqi spheroidization yog qhov siab dua nrog qhov sib ntxiv ntawm cov ntsiab lus tsawg hauv ntiaj teb piv rau qhov tsis muaj lawv.

Magnesium cov ntsiab lus txiav txim siab spheroidization muaj peev xwm, thaum lub ntiaj teb tsis tshua muaj cov ntsiab lus txiav txim siab tiv thaiv -fading peev xwm thiab purification nyhuv. Rau zoo tib yam ductile hlau castings, magnesium txaus txaus; rau tuab-section castings thiab cua zog castings, tsawg lub ntiaj teb cov ntsiab lus yog tsim nyog.

1. Ordinary ductile hlau qhov chaw (manhole npog, yeeb nkab fittings, ua liaj ua teb machinery qhov chaw)

Qib pom zoo: QRMg7HRE2

Nta: Muaj cov ntsiab lus magnesium txaus, cov ntsiab lus tsis tshua muaj hauv ntiaj teb, tus nqi siab tshaj -kev ua tau zoo.

Yuav siv li cas: Ncuav - hauv txoj kev; Muab spheroidizing tus neeg sawv cev rau hauv qab ntawm lub ladle, npog nrog ib tug npog, thiab ncuav nyob rau hauv molten hlau.

2. High-lub zog ductile hlau qhov chaw (crankshafts, txuas rods, automotive chassis qhov chaw)

Qib pom zoo: QRMg8HRE3

Nta: Tsim nyog piv ntawm magnesium thiab tsawg lub ntiaj teb cov ntsiab lus, siab spheroidization tus nqi, zoo txhua yam khoom.

Cov ntsiab lus tseem ceeb: Cov khoom no xav tau lub zog siab thiab qaug zog lub neej; tus nqi spheroidization yuav tsum tsis tu ncua saum qib 2.

3. Thick -section ductile hlau qhov chaw (cua turbine hubs, pwm loj, hnyav machinery qhov chaw)

Qib pom zoo: QRMg8HRE5 lossis QRMg8HRE7

Nta: Cov ntsiab lus tsis tshua muaj hauv ntiaj teb, muaj zog tiv thaiv fading, lav spheroidization tus nqi hauv cov tub ntxhais.

Cov ntsiab lus tseem ceeb: tuab, loj- ntu ntu txias maj mam, thiab cov neeg ua haujlwm spheroidizing zoo ib yam yuav ua rau degradation; yog li ntawd, siab-tsis tshua muaj- av yuav tsum tau siv.

4. High-sulfur molten hlau lossis cov txheej txheem tshwj xeeb

Qib pom zoo: QRMg10HRE7

Nta: Cov ntsiab lus magnesium siab, uas tuaj yeem them nyiaj rau qhov kub hnyiab- tawm los ntawm leej faj thiab ua kom cov nyhuv spheroidizing.

Qhov Tsis Zoo 1: Nodularization Fading (Tsis txaus nodularity hauv ncej- ntu ntu ntu)

Ua rau: Pouring lub sij hawm ntev heev, magnesium volatilizes kiag li; los yog tus thawj molten hlau muaj sulfur siab heev.

Kev daws: Hloov mus rau qib siab tsawg hauv ntiaj teb (muaj zog tiv thaiv kom tsis txhob ploj); txo lub sij hawm pouring; txhim kho qhov zoo ntawm tus thawj molten hlau.

Qhov Tsis Zoo 2: Tsis Zoo Nodularization (Nodularity tus nqi tsis mus txog tus qauv)

Ua rau: Tsis txaus spheroidizing tus neeg sawv cev; npog tsis txaus, loj magnesium hlawv-tawm; kev kho mob kub tsawg heev.

Kev daws: Ua kom tus nqi ntawm spheroidizing tus neeg sawv cev; xyuas seb tus neeg sawv cev npog yog nruj me ntsis; nce qhov kub thiab txias.

Qhov tsis zoo 3: Graphite Floating (Graphite tsub zuj zuj ntawm qhov saum npoo ntawm cov casting)

Ua rau: Carbon sib npaug siab dhau lawm; pouring kub siab heev; casting phab ntsa thickness loj heev.

Kev daws: Kho cov tshuaj muaj pes tsawg leeg; txo qhov pouring kub; ntxiv cov kab kawm (xws li txhuas, titanium).

Qhov tsis zoo 4: Porosity hauv Casting

Ua rau: noo noo nyob rau hauv tus neeg sawv cev spheroidizing; high noo noo cov ntsiab lus nyob rau hauv molding xuab zeb; tsis zoo deoxidation ntawm molten hlau.

Kev daws: Qhuav thiab khaws cov spheroidizing tus neeg sawv cev; tswj cov dej noo ntawm cov xuab zeb molding; ntxiv dag zog rau deoxidation.

Cim npe nrov: Tuam Tshoj magnesium ferrosilicon manufacturers, lwm tus neeg, Hoobkas