Fastener deg txheej txheem kev kho mob: galvanizing, phosphating, blackening, kuv yuav xaiv qhov twg?

Hauv kev lag luam niaj hnub, fasteners yog cov ntsiab lus tseem ceeb rau kev sib txuas, thiab lawv cov kev ua tau zoo cuam tshuam rau kev ruaj ntseg thiab kev nyab xeeb ntawm tag nrho cov khoom siv. Kev kho saum npoo ntawm fasteners tsis yog tsuas yog cuam tshuam nrog lawv cov tsos zoo nkauj, tab sis kuj rau lawv cov kev ua haujlwm tiv thaiv corrosion thiab kev pabcuam lub neej. Yog li ntawd, xaiv txoj kev kho kom haum rau saum npoo tau dhau los ua ib feem tseem ceeb ntawm kev tsim khoom fastener uas tsis tuaj yeem tsis quav ntsej.

Ua ntej, cia peb tham txog feem ntau siv electrogalvanizing. THIABlectrogalvanizing tau dhau los ua txheej txheej rau kev lag luam fasteners nrog nws tus nqi qis thiab zoo li qub. Txawm li cas los xij, nws qhov kev tiv thaiv corrosion tsis zoo, tshwj xeeb tshaj yog nyob rau hauv high humidity lossis corrosive ib puag ncig, thiab nws cov kav ntev yuav tsum tau txhim kho. Txhawm rau daws qhov teeb meem no, qee qhov tshwj xeeb sealers tau qhia kom txuas ntxiv nws lub neej tiv thaiv corrosion. Tab sis tus nqi ntawm cov kev kho mob no kuj tau nce ntxiv, thiab nws yuav tsum tau ntsuas raws li qhov tshwj xeeb siv scenario.

Tom ntej no yogphosphating. Phosphating tsis yog tsuas yog pheej yig xwb, tab sis kuj muaj kev tiv thaiv corrosion zoo thiab hnav tsis kam, tshwj xeeb tshaj yog haum rau cov bolts muaj zog. Oiling tom qab phosphating tuaj yeem txhim kho nws cov kev tiv thaiv corrosion ntxiv thiab tsim nyog rau kev sib txuas ntawm qhov tseem ceeb. Nws yog ib qho tsim nyog hais tias phosphating tuaj yeem ua tau zoo kom tsis txhob muaj hydrogen embrittlement, uas yog qhov tseem ceeb uas yuav tsum tau xav txog hauv kev tsim cov bolts muaj zog.

Wb tham txogoxidation (blacking)kev kho mob. Txoj kev kho no tsis tshua muaj nqi, tab sis nws yuav xeb sai sai thaum tsis muaj roj. Yog li ntawd, nws yog feem ntau ua ke nrog oiling kom ntev lub neej kev pab cuam. Txawm hais tias qhov kev tiv thaiv corrosion yog txwv, nws tseem yog ib qho kev xaiv pheej yig hauv qee lub sij hawm tus nqi-rhiab heev.

Cadmium electroplatingua tau zoo nyob rau hauv marine atmospheric ib puag ncig vim nws zoo heev corrosion kuj. Txawm li cas los xij, tus nqi siab thiab cov nqi kho cov kua khib nyiab thaum lub sij hawm ua cov txheej txheem txwv nws daim ntawv thov ntau yam. Chromium electroplating paub txog nws qhov siab hardness thiab hnav tsis kam, tab sis nws kuj muaj cov nqi siab thiab cov teeb meem hydrogen embrittlement.

Nickel platingyog ib txoj kev kho saum npoo uas tuaj yeem tiv thaiv corrosion thiab tswj tau zoo conductivity. Nws yog tsuas yog siv nyob rau hauv lub sij hawm uas yuav tsum tau ob qho tib si corrosion kuj thiab conductivity, xws li cov hlau lead-tawm terminals ntawm lub tsheb roj teeb.

Kub-dip galvanizing thiab zinc infiltrationyog ob txoj kev kho saum npoo siv dav hauv engineering. Kub-dip galvanizing paub txog nws cov txheej tuab thiab zoo corrosion kuj, tab sis nws yuav ua rau muaj teeb meem nrog kev nyuaj ntawm kev sib tw hauv thiab sab nraud. Zinc infiltration yog nyiam rau nws qhov zoo sib xws, siab sib koom ua ke nrog lub substrate, thiab kev tiv thaiv ib puag ncig thiab tsis muaj kuab lom.

Thaum kawg, peb yuav tsum haisDacrometkev kho mob. Cov txheej txheem tshiab no tsis yog tsuas yog muaj kev ua haujlwm zoo los tiv thaiv corrosion, tab sis kuj tsis muaj teeb meem hydrogen embrittlement thiab zoo torque-preload sib xws. Txawm li cas los xij, nws kim heev thiab muaj teeb meem ib puag ncig, yog li nws yuav tsum tau siv tom qab kev xav txog cov nqi thiab ib puag ncig.

Nyob rau hauv cov ntsiab lus, kev xaiv ntawm fastener nto kev kho mob yuav tsum tau comprehensively xav txog ntau yam xws li kev tiv thaiv corrosion, nqi, siv ib puag ncig, ib puag ncig yuav tsum tau, thiab cov kev ua tau zoo ntawm fastener nws tus kheej. Tsuas yog los ntawm kev nrhiav cov txheej txheem kho kom haum tshaj plaws tuaj yeem ua rau peb paub tseeb tias lub fastener tswj kev ua haujlwm ruaj khov thiab txhim khu kev ruaj ntseg hauv kev siv mus ntev.

Peb Lub Vev Xaib:https://www.fastoscrews.com/, xav tias dawb rau tiv tauj peb.