Blackening txheej txheem thiab ceev faj rau Hexagonal Bolts

Blackening kev kho mob yog ib qho txheej txheem oxidation thiab tiv thaiv corrosion rau cov ntaub ntawv hlau. Raws li cov txheej txheem kub thiab kev kho mob, nws feem ntau muab faib ua peb hom: low-temperature blackening, high-temperature blackening, thiab optical matte blackening. Txhua tus txheej txheem sib txawv hauv kev ua haujlwm txheej, qhov pom ntawm qhov chaw thiab cov xwm txheej siv tau.

I. Kev Taw Qhia Txog Peb Qhov Tseem Ceeb Blackening Processes

1. Tsawg-kub Blackening txheej txheem

Cov txheej txheem qis-kub blackening muab cov khoom ruaj khov. Cov oxide zaj duab xis tsim yog ntom, ruaj thiab zoo-adhered. Tom qab cov roj sealing, qhov chaw nthuav tawm cov xim sib sib zog nqus dub nrog kev hnav tsis zoo, ua raws li lub teb chaws tus qauv GB/T15519. Featuring siab nqi kev ua tau zoo, cov txheej txheem no yog dav siv rau cov pa fastener anti-corrosion kho. Txawm li cas los xij, nws cov kev tiv thaiv corrosion thiab hnav tsis kam yog qis dua rau cov txheej txheem kub kub blackening.

2. Kub-kub Blackening txheej txheem

High-temperature blackening muab qhov kev ua tau zoo tshaj plaws nrog kev kho mob zoo heev. Cov oxide zaj duab xis tsim nta ultra-muaj zog adhesion thiab uniform ntom. Cov ntsia liaj qhov rooj kho mob muaj ntau yam khoom xws li hnav tsis kam, kev sib txhuam txo, khawb tsis kam, qaug zog tiv thaiv, corrosion kuj thiab nws tus kheej lubrication. Nws yog qhov tsim nyog rau kev tiv thaiv corrosion ntawm high-strength, high-precision thiabhnyav-load hexagonal bolts, ua raws li cov txheej txheem blackening nyiam rau high-end fasteners.

3. Optical Matte Blackening txheej txheem

Kev siv cov tshuaj tsim tshwj xeeb thiab cov txheej txheem tshwj xeeb, cov txheej txheem kho qhov muag matte blackening tsim cov yeeb yaj kiab uas tsis yog xim matte dub oxide rau ntawm qhov chaw ntsia hlau. Cov txheej txheem boasts muaj zog adhesion, ruaj khov qauv, tsis muaj tshauv residue thiab tsis muaj particle defects, nrog zoo hnav tsis kam. Nws yog muaj feem xyuam rau precision hexagonal bolts nrog tshwj xeeb yuav tsum tau rau cov tsos zoo nkauj thiab matte pom nyhuv.

II. Kev Tiv Thaiv Kev Ua Haujlwm rauHexagonal BoltKev Kho Mob Dub

1. Ua kom tiav kev degreasing hauv kev kho ua ntej

Ib txwm-kub blackening tov yog acidic thiab tsis muaj peev xwm degreasing. Tag nrho cov kab mob ntawm cov roj saum npoo yuav tsum tau muab tshem tawm tag nrho nyob rau theem ua ntej kho. Txoj kev tsim nyog degreasing tuaj yeem raug xaiv raws li cov khoom siv tiag tiag. Tom qab degreasing, workpieces yuav tsum tau muab yaug nrog dej huv. Floating roj stains nyob rau hauv lub tank rinsing yuav tsum tau muab tshem tawm nyob rau hauv lub sij hawm kom tsis txhob muaj lwm yam kab mob. Cov txheej txheem tsim nyog rau degreasing yog cov yeeb yaj kiab tsis tu ncua thiab cov dej tsis tu ncua npog tag nrho cov khoom ua haujlwm. Water droplet aggregation los yog cov yeeb yaj kiab dej tsis tu ncua qhia tias degreasing tsis tiav. Rework yog yuav tsum tau, thiab oily workpieces yog txwv tsis pub nkag mus rau hauv lub blackening tank.

2. Precisely tswj zaj duab xis-tsim lub sij hawm rau cov khoom sib txawv

Cov ntaub ntawv hlau ntawm cov qib sib txawv muaj qhov sib txawv ntawm cov yeeb yaj kiab-ua nrawm. Cov neeg ua haujlwm yuav tsum tsis tu ncua saib cov yeeb yaj kiab kev loj hlob thaum lub sijhawm tsim khoom thiab tshem tawm cov khoom ua haujlwm tam sim tom qab tsim cov yeeb yaj kiab grey-dub oxide. Cov workpieces yuav tsum tau muab tso rau hauv huab cua li 1 mus rau 2 feeb ua ntej lub cev qhuav dej ntawm cov roj immersion txheej txheem. Tom qab soaked nyob rau hauv cov roj los tiv thaiv xeb lub cev qhuav dej, lub blackness, adhesion thiab compactness ntawm cov oxide zaj duab xis yuav zoo dua, kom ntseeg tau ruaj khov khoom zoo thaum tswj cov nqi ntau lawm.

3. Ua kev soj ntsuam zoo ntawm zaj duab xis thaum lub sij hawm sawv ntsug

Kev tshuaj xyuas qhov zoo yuav tsum tau ua thaum lub workpieces blackened nyob rau hauv cov huab cua tom qab ib txwm kub blackening. Cov khoom uas muaj cov qauv mottled, raug substrate los yog rubbing-tawm dub txheej yog txwv tsis pub nkag mus rau cov txheej txheem tom ntej, tshwj xeeb tshaj yog cov roj immersion. Cov txheej txheem teeb meem yuav tsum tau tshawb xyuas thiab kho tam sim ntawd txhawm rau tiv thaiv cov khoom puas los ntawm kev ntws mus rau cov txheej txheem tsim khoom tom ntej.

4. Kev Txiav Txim Txheej Txheem Peeling Defects thiab Siv Lub Hom Phiaj Rectification

Txheej txheej txheej feem ntau tshwm sim los ntawm ob qho laj thawj thiab tuaj yeem txiav txim los ntawm cov xwm txheej saum npoo. Yog tias tsuas yog txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej tsuas yog tshem tawm tsis tau nthuav tawm cov hlau substrate, qhov tsis xws luag yog tshwm sim los ntawm kev siv sijhawm ntau dhau ntawm cov txheej txheem blackening. Yog tias cov txheej txheem ntog tawm thiab nthuav tawm cov hlau substrate, kev kho ua ntej suav nrog degreasing thiab derusting tsis tiav, thiab tag nrho kev kho ua ntej thiab rov ua blackening yuav tsum tau ua.

5. Stabilize Solution Concentration kom ntseeg tau tias kev kho mob ua ntej

Cov concentrations ntawm degreaser thiab hydrochloric acid ua hauj lwm tov yuav tsum tau saib xyuas thiab tswj xyuas tsis tu ncua thaum lub sij hawm tsim khoom, tshwj xeeb tshaj yog cov concentration ntawm hydrochloric acid. Cov kev daws teeb meem ruaj khov yog qhov tseem ceeb lav rau kev tsim nyog ua ntej kev kho mob, cov yeeb yaj kiab blackening thiab txhim khu kev qha txheej adhesion.