Qhov cuam tshuam ntawm pretreatment cov txheej txheem ntawm lub durability ntawm steel

 

 

Steel yog ib qho khoom siv hauv kev tsim kho niaj hnub, thiab cov khoom siv hluav taws xob ua kom tau zoo, thiab lwm yam kev kho mob, thiab kev ntseeg siab, thiab thaum kawg txiav txim siab steel durability . Cov lus no tshuaj xyuas cov txheej txheem tshwm sim sib txawv ntawm cov hlau thiab kev ua haujlwm .



Cov Txheej Txheem Tseem Ceeb thiab lawv cov teebmeem

1.} Tsoo Tu: Tshem Tawm Cov Khoom Noj

Ua ntej muaj kev tiv thaiv kev tiv thaiv, cov hlau yuav tsum tau tu kom meej kom tshem tawm cov xeb, roj, roj, thiab cov txheej txheem} 0}}



Degreasing (alkaline lossis kuab ntxuav tu): tshem tawm cov roj thiab cov organic residues uas tabkaum txheej adhesion .



Abrasive Blasting (Sandblasting / Grit Blasting): Tsim cov ntxhib saum toj profile, txhim kho cov xim thiab cov xim sib txuam thiab coing bonding .



Pickling (acid kho xeb thiab teev siv hydrochloric lossis sulfuricicization, tab sis yuav tsum ua tib zoo saib xyuas cov acidor corrosion .



Cuam tshuam rau durability: tu tu kom tsis zoo ua rau txheej corrosion, nrawm}}}}}}}}}}}}}}} {}



{{02. phosphating: Txhim Kho Corrosion Kuj

Phosphathate hloov cov txheej txheej ua lub crystalline txheej uas txhim kho cov xim nplaum thiab muab kev tiv thaiv ib ntus {}}



Zinc phosphating: muaj feem ntau hauv kev lag luam thiab khoom siv, muab cov khoom lag luam zoo heev .



IRE hlau phospating: siv rau cov ntawv thov txo nqi qis dua qhov twg muaj kev tiv thaiv kev tiv thaiv tsawg {}}



Cuam tshuam rau durability: phospholated steel tivtawj txau 2-3 lub sijhawm ntev dua li tsis kho cov hlau, tshwj xeeb hauv kev lag luam {}}



{{0 {}} Passive: Ntxiv rau ntawm cov hlau stainless

Stainless hlau undergoes passivation passivation passivation passivation passivation passivation passivation passivation passivation passivation begerration thiab rov qab nws cov chromium oxide txheej .



Txwv tsis pub pitting thiab crevice corrosion: tseem ceeb hauv kev kho mob, ua zaub mov, thiab siv tshuaj lom neeg .



Txhim kho kev ua kom zoo nkauj ntev: tswj kev huv si, xeb-dawb tsos .



Cuam tshuam rau durability: passivated stainless hlau khaws corrosion tsis kam 5-10} xyoo ntev ntev .



4.} thermal pretreatment: kev nyuaj siab nyem thiab tawv tawv

Annaling: txo kev ntxhov siab sab hauv los ntawm vuam lossis machining, tiv thaiv cov kab nrib pleb .



Tua peening: induces compressive kev ntxhov siab, txhim kho kev nkees tsis kam nyob rau hauv cov ntawv thov High-{1}}



Cuam tshuam rau durability: Threatally kho cov khoom siv hlau qhia 20-40% ntau yam tshuab .



Kev Ntsuas piv txog Kev Ua Haujlwm Ua Ntej

Qauv Pretrecatic Txoj Cai Qhov tseem ceeb

Abrasive Blasting Zoo Dua Txheej Txheej Dua Qub 30-50% ntev dua neej

Phosphaited Enhanced Corrosion 2-3 x ntev dua hauv cov ntsev tsuag

Passivation tiv thaiv tsis pom corrosion 5-10} xyoo ncua lub neej

Tua Cov Peening nce zog zog zog 20-40% ntev zog lub neej

 

            

 

 

Cov txheej txheem tshwm sim tseem ceeb tshaj plaws ntawm kev lag luam steel ua haujlwm zoo li cov kev kho mob ua kom zoo nkauj cov txheej txheem, engineers tuaj yeem ua kom cov qauv ua kom muaj zog ua kom ruaj khov, corrosion-resistant, thiab tus nqi siv tau rau xyoo lawm.