Dub-oxides tiav Ib txoj hauv kev meej rau kev ua tiav

Hloov tshiab kawg: 22/08/22

Ib feem nrog Black-oxide tiav

Kev ua tiav ntawm cov khoom thiab qhov chaw yog qhov tseem ceeb hauv kev tsim khoom lag luam kom zoo nkauj thiab txhim kho cov khoom lag luam tag nrho, thiab txuas ntxiv nws lub neej.Covdub-oxide tiavyog txheej txheem txheej txheej tshuaj uas tso cov txheej txheem microscopic ntawm magnetite (Fe3O4) hla saum npoo ntawm cov hlau..Vim muaj huab cua thiab noo noo, xeb feem ntau tshwm rau ntawm qhov chaw ferrous tom qab ib ntus.Ib tug dub-oxide tag tiv thaiv corrosion thiab du nto ntawm ferrous thiab lwm yam ntaub ntawv xws li cam khwb cia hlau, cam khwb cia hlau, stainless hlau, tooj liab, zinc, txhuas, tooj dag, thiab chromium.

Nws ua haujlwm li cas?

Cov oxide dub yog tsim rau ntawm cov khoom siv saum npoo av thaum immersed hauv alkaline ntsev tov ntawm qhov ntsuas kub (130 txog 150).⁰C).Lub thickness ntawm txheej yog negligible, yog li nws tsis cuam tshuam rau lub dimension stability, tsim tsis, thiab cov khoom.Tej zaum koj yuav xav tsis thoob vim li cas nws thiaj li hu ua black-oxide tiav?Nws yog vim nws thaum kawg blackens lub tiav lawm nto.

Cov kauj ruam ntawm cov xim dub oxide txheej

Feem ntau yog tsib kauj ruam hauv txheej txheej dub oxide ntawm cov khoom siv sab nrauv kom ua tiav qhov chaw tiav.

Kauj ruam 1:Xyuas qhov zoo ntawm qhov smoothness.Yog hais tias muaj qhov ntsais qhov, xeb, los yog nto irregularities, tshem tawm txoj kev pheej hmoo ntawm flowering los yog los ntshav-outs nrog rau txoj kev tsim nyog.

Kauj ruam 2:Ntxuav saum npoo kom tshem tawm cov plua plav thiab cov ntaub ntawv txuas los ntawm qhov chaw ua ntej txheej txheej.

Kauj ruam 3:Siv cov oxide txheej rov qab

Kauj ruam 4:Ntxiv dua thiab, ntxuav qhov chaw tom qab txheej txheej.

Kauj ruam 5:Siv cov txheej txheem tom qab ua tiav xws li Roj, Polyurethane, lacquer, Wax, thiab lubricants hauv qee kis (Screws, Bearing, Turbine qhov chaw, thiab lwm yam rotatory Cheebtsam).Vim tias dub-oxide tiav ib leeg tsis tuaj yeem tiv thaiv xeb tsim tau zoo, cov no tom qab txheej txheej txhim kho corrosion kuj.

Hom Black-oxide tiav

Raws li cov khoom siv thiab kev siv kawg ntawm cov khoom siv los coated.Muaj peb txoj hauv kev rau cov xim dub-oxide txheej:Kub dub oxide, txias dub oxide, thiab Mid-kub dub oxide.Txawm hais tias muaj lwm txoj hauv kev rau kev ua tiav nto nrog Dub- oxide txheej.Qhov tseem ceeb sib txawv ntawm cov txheej txheem no yog tias lawv cov formulations thiab kev khiav hauj lwm kub sib txawv.Cia peb saib ob hom kev nthuav dav ntawm lawv.

15x magnification ntawm oxidized blackened nto

1.  Kub dub-oxide txheej

Nyob rau hauv cov txheej txheem no, tej daim yog muab tso rau hauv ib lub boiling rauv nrog aqueous alkaline daws, xws li sodium hydro oxide (NaOH), nitrates (NO3-), thiab nitrite (No2-), ntawm qhov kub ntawm 135 mus rau 150. ⁰C. Cov ntsev concentration hauv cov tshuaj txiav txim siab kub kub.Yog hais tias qhov concentration yog siab, lub boiling point yuav siab tshaj qhov ntau (> 150 0⁰C), thiab yog tias qhov concentration tsawg, lub boiling point yuav qis dua (<135⁰C).Qhov zoo ntawm cov cuab yeej no yog qhov ntawdpeb tuaj yeem tsim kom muaj qhov kub thiab txias uas xav tau los ntawm kev hloov kho cov ntsiab lus ntsev, piv txwv li, ntxiv ntsev yog tias qhov kub npau npau yuav tsum tau nce ntxiv, thiab lwm yam.

Daim ntawv no ntawm cov xim dub oxide txheej los yog qhov chaw tiav yuav tsum muaj peb qhov chaw tshwj xeeb.

·       Blast furnace nrog alkaline ntsev tov los hloov cov hlau oxides rau hauv cov kua hlau ntawm qhov chaw.

·       Kev tswj qhov kub thiab txias kom tswj tau qhov ntsuas kub xav tau.

·       Cov chaw tu kom tshem tawm cov plua plav thiab txuas rau ntawm qhov chaw thoob plaws hauv cov txheej txheem

Boiling tov nrog qhov chaw yuav coated

Cov kauj ruam ua raws;

• Ntxuav cov khoom uas yuav coated nrog alkaline aqueous tov.

• Ntxuav tam sim ntawd nrog dej distilled, raws li alkaline kev daws teeb meem tuaj yeem hnov ​​​​mob nrog cov khoom siv thiab degrade cov thawj nto tiav

• Txhawm rau neutralize cov kua qaub ntxuav, ntxuav nrog dej ib zaug ntxiv.

• Rau 5 mus rau 45 feeb, submerge cov pieces nyob rau hauv ib tug boiling alkaline tov.

• Ntxuav nrog dej txias siv lub dav hlau dej thiab tso tseg kom qhuav.

• Siv quav ciab, roj, lacquer, lossis lwm yam khoom siv txheej txheej txheej rau cov txheej txheem thib ob txhawm rau txhim kho corrosion kuj thiab kev zoo nkauj.

2.  Txias dub oxide tiav

Raws li tau hais ua ntej, kev ua haujlwm kub yog qhov sib txawv ntawm qhov kub thiab txias dub oxide tiav.Tag nrho cov txheej txheem yog tib yam nkaus li qhov txias blackening ntawm qhov chaw nqa tawm ntawm chav tsev kub.

Txij li cov hlau oxide tsis tuaj yeem ua kua dej ntawm chav tsev kub ntawm qhov chaw, nws tsis yog tso cov txheej dub rau ntawm qhov chaw kom coated.Yog li ntawd, nws siv tus txheej txheem kev tso tawm uas tsis suav nrog hlau oxidation.Hloov chaw, txheej txheej txheej yog dipped hauv phosphoric acid tank tov nrog rau qib tsim nyog ntawm selenium tooj liab thiab cov tebchaw.

Txhawm rau ua kom lub ntsej muag tiav nrog txoj hauv kev no, cov tshuaj tau tsim nyob rau hauv lub tank, thiab txhua pawg ntawm cov khoom tau muab tso rau hauv nws li 20 mus rau 30 feeb.Tag nrho lwm yam kev ntxuav, ziab, thiab txheej txheej thib ob ntawm wax thiab roj yog tib yam li cov kub kub oxide tiav.

Daim ntawv thov ntawm Black-oxide Finish

Qhov chaw nrog hlau-oxide txheej los ntawm ntau yam kev lag luam

Dub-Oxide nto tiav yog siv rau hauv ntau qhov chaw tsim khoom xws li Tub Rog, Automotive mus rau cov cuab yeej kho mob thiab khoom siv.

Tub rog: Cov khoom siv phom xws li Cov Ntawv Xov Xwm, cov ntawv tuav tes, lub plhaub, cov khoom tuav, rab phom

Kho mob:Txhua yam khoom siv ua los ntawm cov hlau thiab alloys uas yuav tsum tau ua kom tsis tshua muaj kev cuam tshuam nto

Cov khoom siv ntawm kev tsim cov cuab yeej:Gauges, cutters, fasteners, bearings, shafts, thiab lwm yam

Automotive: Roj lim tuaj yeem, Screws, Vuam qhov chaw, thiab yuav luag txhua qhov chaw hauv qab lub cav thaiv

Hluav taws xob: Hlau tshem tawm, txiab, cutters, thiab gearboxes rau moos thiab cov khoom siv hluav taws xob xws li keyboards, boards

PRO thiab CONS ntawm Dub oxide- xov

PROS:

Cov xim dub oxide txheej ntawm cov khoom tsim thiab cov khoom muaj ntau qhov zoo ntawm kev ruaj ntseg, kev ua haujlwm ntev, kev ua haujlwm zoo, du nto, thiab kev zoo nkauj.Cia wb mus saib ib leeg.

Tiv thaiv los ntawm Corrosion: 

Kev lag luam kev lag luam tam sim no vam khom rau cov ferrous alloys, tshwj xeeb tshaj yog steel.Cov txheej txheej dub oxide seals qhov saum npoo ntawm huab cua thiab noo noo, txo lub caij nyoog ntawm xeb tsim, uas yog ib qho tseem ceeb ntawm cov khoom degradation.Txij li thaum dub oxide nto tiav txoj hauv kev tuaj yeem siv rau lwm yam khoom siv xws li tooj liab thiab txhuas.Nws muaj qhov txiaj ntsig zoo hauv kev tswj xyuas cov kav ntev ntawm cov khoom tsim.

Aesthetic txiaj ntsim

Nws muab lub ntsej muag zoo nkauj thiab ntxim nyiam xim dub uas yuav kav ntev ntev yam tsis muaj kev cuam tshuam loj.

Weldability kom zoo dua

Vuam cov oxide dub ua tiav ntawm cov khoom ntawm qhov chaw txhim kho lawv cov weldability thiab ua rau kev sib dhos yooj yim dua.

Qhov saum npoo sharpness

Qee qhov kev tsim khoom, xws li cov tho thiab cov ntsia hlau, yuav tsum muaj lub ntsej muag ntse kom ua haujlwm kom raug, thiab blackening tuaj yeem pab txhim kho tus cwj pwm no.

Lubrication

Tom qab cov oxide dub tau qhuav rau saum npoo, txheej txheej thib ob ntawm cov quav ciab, roj, thiab lubrication ua kom yooj yim dua.

Tus nqi qis

Muaj lwm txoj hauv kev zoo tshaj plaws hauv kev tsim khoom lag luam xws li hmoov txheej, electroplating, thiab pleev xim tab sis xim dub oxide txheej muaj tus nqi qis dua piv rau cov txheej txheem no.

Dimensional sib xws

Dub oxide txheej yog micron-tuab, kom ntseeg tau tias thickness thiab qhov ntev stability tsis cuam tshuam.

Txoj kev no hloov cov xim ntawm qhov chaw yam tsis tau ntxiv cov thickness.

Environmental stability

Siv cov oxide dub tiav rau ntawm qhov chaw tsim khoom thiab cov khoom lag luam tiv thaiv hydrogen diffusion thiab tshuaj hloov pauv, uas cuam tshuam rau cov khoom siv vim yog ib puag ncig.Nws kuj muab kev tiv thaiv ib puag ncig tiv thaiv ib puag ncig.

CONS

• Cov oxide dub npog tuaj yeem yooj yim rub tawm.

• Hom kev kho saum npoo no yog siv zog heev vim nws muaj ntau yam txheej txheem.

• Qhov kub tsis kam ntawm cov xim dub-oxide txheej yog tsawg, thiab nws tuaj yeem raug rhuav tshem thaum kub kub, ua rau muaj xeb thaum ntxov ntawm qhov chaw.Tsis tas li ntawd, qhov txias dub oxide tiav tuaj yeem cuam tshuam tshaj qhov kub ntawm qhov chaw.

Cov ntsiab lus yuav tsum tau txiav txim siab hauv cov xim dub oxide-tiav

Lub sijhawm tiv thaiv

Ua ntej yuav dhau los ntawm kev tiv thaiv oxide dub ntawm cov khoom nto, lub sijhawm txheej txheej yuav tsum tau txiav txim siab.

Qhov kev tshuaj ntsuam no pab txiav txim seb puas yuav siv cov oxide dub tiav los yog tsis.Yog tias cov khoom siv lub neej ntev tsis zoo, koj tuaj yeem xav txog lwm yam kev xaiv yooj yim, xws li xim txheej.Nws tsuas yog tsim nyog yog tias cov khoom lag luam lub neej ntev dua.

Cov khoom siv zaum kawg

Xav txog qhov kawg ntawm kev siv cov khoom siv machined.Lawv puas yuav siv rau hauv cov ntawv thov uas xav tau kev ua haujlwm siab, xws li aerospace, robotics, lossis kev siv tub rog?Txiav txim siab seb koj puas xav mus nrog cov oxide dub tiav lossis tsis tom qab kuaj xyuas daim ntawv thov siv zaum kawg.Koj tuaj yeem siv lwm txheej txheej txheej thiab txheej txheej yog tias qhov khoom kawg tsis xav tau qhov siab.

Kev xav txog ib puag ncig

Dub oxide-coated cov khoom lossis cov khoom tuaj yeem tiv taus ntau yam ntawm ib puag ncig.Nws muaj kev ua haujlwm zoo thiab ua haujlwm tsis muaj kev puas tsuaj hauv lub xeev tawm ntawm lub thawv.

Txawm li cas los xij, yog tias qhov khoom kawg yog npaj rau kev siv sab hauv tsev, nws yuav tsis raug nqi lossis siv thev naus laus zis.Tsis tas li ntawd, cov kev khiav hauj lwm thiab kev siv tej yam kev mob muaj qhov kub thiab txias.Nyob rau hauv tas li ntawd, nws yuav tsis muaj txiaj ntsig vim tias cov xim dub oxide txheej tuaj yeem tawg rau lub sijhawm luv luv ntawm qhov kub ua haujlwm siab.Yog li cov xwm txheej ib puag ncig yuav tsum tau txiav txim siab thaum siv cov txheej txheem no rau saum npoo tiav.

FAQs txog dub oxide tiav

Puas yog txoj hauv kev no tsuas yog ua haujlwm rau cov ntaub ntawv ferrous?

Tsis yog, rov qab oxide txheej tau siv rau lub sijhawm ntev hauv kev ua tiav ntawm cov khoom tsim thiab cov khoom tsim los ntawm cov hlau alloys thiab lwm yam ntaub ntawv xws li tooj liab, txhuas, Cadmium, Zinc, thiab lwm yam khoom siv.

Puas yog txoj hauv kev zoo tshaj los tiv thaiv xeb?

Yog lawm, cov coated dub oxide tiv thaiv cov dej noo thiab huab cua reacting nrog rau saum npoo thiab muab kev tiv thaiv zoo tshaj qhov xeb ntawm qhov chaw.

Puas yog blackening kav ntev?

Tsis muaj qhov tsis ntseeg, txheej txheej yuav siv sijhawm ntev dua li lwm cov txheej txheem txheej txheem xws li electroplating thiab pleev xim.

Xaus

Dub oxide xov yog cov cuab yeej zoo tshaj plaws rau kev tiv thaiv corrosion thiab degradation ntawm cov khoom siv thiab cov khoom siv.Nws tseem tuaj yeem muaj sia nyob ntev dua yam tsis tau poob nws cov yam ntxwv lossis kev ua haujlwm.peb muajntev muab kev pabcuam tsim khoom nyob rau hauv ib lub ru tsev, los ntawm kev tsim qauv mus rau cov khoom tiav.

Peb tau xa cov kev pabcuam zoo tshaj plaws rau cov khoom thiab qhov chaw siv cov txheej txheem oxide dub thiab lwm yam txheej txheem.Yog tias koj xav tau cov kev pabcuam cuam tshuam rau koj cov khoom siv los yog lwm yam kev pabcuam ntsig txog kev tsim khoom, thov tsis txhob yigtiv tauj peb.