Passivation yog cov txheej txheem ntawm kev hloov cov nplaim ntawm cov hlau mus rau hauv lub xeev uas tsis tshua muaj oxidation (ua cov oxide zaj duab xis), thiaj li yuav ncua kev xeb. Titanium alloys inherently muaj zog heev passivation zog, thiab lawv qhov chaw yuav sai sai tsim ib tug ntom ntuj oxide zaj duab xis, ua rau lawv muaj zoo heev corrosion kuj nyob rau hauv ntau yam hnyav ib puag ncig.
Feem ntau cov txheej txheem passivation
Electrochemical passivation:
Lub hauv paus ntsiab lus: Siv electrochemistry los tsim cov oxide zaj duab xis ntom ntom ntawm titanium alloy nto thiab tiv thaiv corrosion thiab khawb.
Yam ntxwv: oxide zaj duab xis yog nyias nyias. Los ntawm kev tswj nws cov tuab (0.01μm - 0.15μm), nws tuaj yeem ua rau cov xim nplua nuj refraction, thiab siv dav hauv cov neeg siv khoom xws li titanium khob thiab titanium chopsticks.
Kev kho cua sov passivation:
Lub hauv paus ntsiab lus: Los ntawm cua sov thiab tom qab ntawd txias ceev, ib txheej tuab oxide yog tsim rau ntawm titanium alloy nto.
Kev Ua Haujlwm: Txhim khu kev tiv thaiv corrosion ntawm titanium alloy, tsim rau cov khoom siv tshuaj lom neeg uas yuav tsum tau ua haujlwm ntev - lub sij hawm ruaj khov nyob rau hauv ib puag ncig hnyav.
Titanium alloy acid pickling thiab passivation txheej txheem
Ua ntej-kev kho mob:Nws yog ib qho tsim nyog yuav tsum tau ua ntej tshem tawm cov kab mob saum npoo av siv cov txheej txheem siv tshuab, ua raws li cov roj tshem tawm thiab degreasing. Qhov no yog lub hauv paus rau kev ua kom muaj qhov sib xws thiab qhov ntom ntom ntawm cov oxide zaj duab xis tom ntej.
Txheej txheem tswj:Cov txheej txheem kua qaub feem ntau yog siv cov tshuaj nitric acid (Cov feem ntau yog HNO₃: dej=1:10 lossis 1:15). Nws yog ib qho tseem ceeb kom tswj hwm qhov sib piv thiab kev ua haujlwm kom tsis txhob muaj kev puas tsuaj rau "cov pa luam yeeb daj", uas tuaj yeem ua rau ib puag ncig thiab ua rau muaj teeb meem kev noj qab haus huv.
Pickling lub sijhawm:lub sijhawm ntawm 5 mus rau 10 feeb yog suav tias yog qhov tsim nyog tshaj plaws hauv cov txheej txheem pickling. Yog tias lub sijhawm luv luv, cov tshuaj tiv thaiv yuav tsis txaus. Yog hais tias lub sij hawm ntev dhau lawm, vim muaj zog hydrogen affinity ntawm titanium, nws yog feem ntau ua rau "hydrogen embrittlement" (txo toughness), uas yuav cuam tshuam rau cov khoom ua tau zoo.
Tom qab-kev kho mob:Tom qab pickling, ntxuav dej kom huv si yuav tsum tau nqa tawm kom tshem tawm cov acidic seem; Tom qab ntawd, kev kho kom qhuav yuav tsum tau ua los tiv thaiv cov seem ntawm cov dej noo los ntawm kev ua rau cov kab mob sib kis los yog xeb.
Baoji Yibaite Tshiab Materials Technology Co., Ltdyog cov chaw tsim khoom zoo tshaj plaws thiab cov chaw muag khoom rau cov khoom siv titanium nrog tus nqi zoo tshaj.
Txais tos rau peb lub tuam txhab thiab vam tias yuav yog koj tus khub zoo tshaj plaws.