Steel corrosion yog nyob txhua qhov chaw, txhua lub sijhawm

Txhawm rau tiv thaiv kev xeb hlau, txoj kev siv ntau tshaj plaws yog siv cov txheej txheem los tiv thaiv qhov chaw ntawm cov khoom steel.Qhov saum npoo yuav tsum tau ntxuav ua ntej txheej tiv thaiv.Ntau pua cov khoom lag luam thiab kev lag luam suav nrog cov nkoj, lub tank cia, txuas hniav, steel qauv, chaw nres tsheb fais fab, tsheb, locomotives, khoom siv tub rog, cov khoom siv dav hlau, thiab lwm yam yuav tsum tau kho saum npoo ua ntej txheej.Hlau abrasive yog qhov zoo tshaj plaws tu nruab nrab.

Hlau abrasives

Feem ntau, muajcam khwb cia hlau txhaj tshuaj (high carbon steel txhaj tshuajthiabqis carbon steel txhaj), hlau grithlau, hlau, hlau,stainless hlau txiav hlau / txias txhaj tshuaj, stainless hlau grit,steel txiav hlau, bearing steel grit, thiab lwm yam. Kev ua tau zoo ntawm cov hlau abrasives tsis yooj yim rau kev tawg, tsis muaj plua plav, tsis siv neeg, kev ua haujlwm siab, thiab cov khoom zoo tag nrho.Nws tuaj yeem txo qis kev noj haus ntawm cov neeg siv kawg, yog li txo cov nqi thiab txo qis emissions.

Yog li cov lus nug yog, yuav ua li cas xaiv cov hlau zoo abrasives?

Txhawm rau kom ntseeg tau tias qhov txiaj ntsig kev kho saum npoo tau ua tiav raws li tus qauv, ob lub cim tseem ceeb ntawm cov hlau abrasives: tu efficiency thiab noj.

Ntau qhov kev nkag siab yuam kev hauv kev xaiv cov cam khwb cia hlau txhaj tshuaj:

Puas yog cov cam khwb cia hlau txhaj tshuaj rounder zoo dua?

Puas yog qhov loj me me dua qub, zoo dua?

Lub brighter qhov tsos, zoo dua?

Puas yog cov cam khwb cia hlau txhaj tshuaj rounder zoo dua?

Teb: Tsis yog.

Nyob rau hauv tus txheej txheem ntawm kev tsim thiab npaj cov hlau txhaj tshuaj, cov hlau molten yog txias los ntawm cov kua rau cov khoom, thiab shrinks thaum lub sij hawm txias.Qhov no shrinkage yog nqa tawm nyob rau hauv ib tug dawb lub xeev, thiab tsis muaj riser li pouring castings ib feem ntxiv nrog molten steel qhov twg lub ntim tom qab shrinking yog txo, yog li elliptical hais nrog sunken nto tshwm.Cov khoom zoo li no tau dhau los ua kom txaus shrinkage, thiab cov duab tsis yog puag ncig tab sis cov qauv yog ntom.Txawm li cas los xij, yog tias cov hlau txhaj tshuaj uas tsis tau cog lus tag nrho, cov qauv tsis ntom, muaj qhov tsis xws luag xws li shrinkage porosity thiab shrinkage kab noj hniav.

Txawb ub txawb zog E = 1 / 2mv2, yog hais tias tus qauv yog ntom, nrog tib volume, lub loj ceev zoo M yog, tej yam zog loj, thiab kuj tsis muaj ib qho yooj yim mus ua txhaum.Txoj kev no, nws tsis yog lawm: lub rounder steel tua zoo dua.

Puas yog cov nplej loj ntawm cov hlau txhaj tshuaj ntau dua, zoo dua?

Teb: Tsis yog.

Nyob rau hauv lub tshav pob ntawm kev tu, qhov chaw ntawm lub workpiece yuav tsum tau ntxuav los yog txau yuav tsim pits rau ntawm qhov chaw ntxuav.Tsuas yog thaum lub pits thiab pits sib tshooj tag nrho, tag nrho cov saum npoo tuaj yeem raug ntxuav kom huv.

Qhov sib txawv ntawm qhov loj me ntawm cov hlau txhaj tshuaj yog qhov ntev, nws yuav siv sij hawm ntev dua kom ncav cuag qhov sib tshooj ntawm cov pits.Rau cov kev txhaj tshuaj steel nrog qee qhov sib xyaw me me sib piv, cov hlau loj txhaj tshuaj feem ntau yog siv los ntxuav, thiab txhaj tshuaj me me. yuav ntxuav qhov kev sib tshuam ntawm thaj chaw kho los ntawm kev txhaj tshuaj steel loj

Lub brighter qhov tsos, zoo dua?

Teb: Tsis yog.

Tam sim no muaj ob homhigh carbon steel txhaj tshuaj: ib leeg quenching steel tua thiab ob chav quenching steel txhaj.Nws yog qhov nyuaj kom paub qhov txawv ntawm qhov muaj pes tsawg leeg, hardness, thiab metallographic qauv.Txawm li cas los xij, ob chav quenched steel txhaj tshuaj muaj cov nplej zoo thiab lub neej qaug zog siab, Cov nplej ntawm ib leeg quenching steel txhaj yog ntxhib thiab qaug zog lub neej yog tsawg.Lub quenching steel txhaj tshuaj donot ua tiav nrog cua sov thiab quenching, Fe3O4 oxide zaj duab xis tsim rau. qhov saum npoo yog nyias, nws zoo li ci heev;Thaum cov hlau txhaj tshuaj tom qab qhov thib ob quenching kev kho mob, Fe3O4 zaj duab xis nyob rau saum npoo yuav thicker, tsis pom lub teeb, thiab tsis zoo li ci.Yog li qhov ci ntsa iab tsis tau ntsuas cov khoom zoo dua, tab sis yog tias nws yog ob chav quenching steel tua lossis tsis yog qhov teeb meem tseem ceeb dua.