Magadzirirwo anowanzo shandiswa ekugadzirisa pamusoro pevhu ndeaya:oxidation, electrophoresis, electroplating, Dacromet mapoka mana, zvinotevera zvinonyanya kukonzera kusawiriranaruvara yekurapa pamusoro pechinyorwa chepfupiso yekupatsanura.
- Nhema okisijeni：
Yakakamurwa kuita dema remukamuri uye dema remukupisa kwakanyanya, kune dema remukamuri semuenzaniso wemaitiro acho ndeaya: kubvisa mafuta emakemikari - kugeza nemvura inopisa - kugeza nemvura inotonhora - kubvisa ngura uye kubvisa acid - kuchenesa - kuita dema - kuchenesa - Pamusoro pemafuta kana pamusoro pekuvhara. Iro jira re oxide film rinoumbwa ne sodium hydroxide ne sodium nitrite patembiricha yepamusoro inopfuura 100 degrees.
Chinhu chikuru chefirimu re oxide isimbi tetraoxide (Fe3C4), kufanana kwefirimu iri i 0.6-1.5um chete, ngura haishande zvakanaka, kana isina kupiswa nemafuta kana neutral salt spray kwemaawa 1-2 chete kana zvakadaro, kana yakapiswa nemafuta mumaawa 3-4 kana zvakadaro. Midziyo midiki haishandise maitiro aya panguva ino se screws. Yakasiyana nekuonekwa kweruvara, black oxide ne black zinc ne electrophoretic black zvinovhara, asi hazvina kupenya se black zinc ne electrophoretic black colour.
- Galvanise：
Kuisa electroplating nhema kune mhando mbiri dzezinc nhema nenickel nhema, musimboti wekuita kwacho wakafanana, kungoita chete kugadzira mhinduro ye electroplating uye mushure mekurapa ne lattice kana passivation solution yakasiyana. Zinc inoshanda nemakemikari, iri nyore kuoxidize uye kuita rima mumhepo, uye pakupedzisira inogadzira 'ngura chena' ngura, zinc plating mushure me chromate treatment kuitira kuti ifukidze layer ye zinc pa chemical conversion film, kuitira kuti active metal ive mu passive state, ndiko kuisirwa kwe zinc layer. Passivation film kubva pakuonekwa kwayo inogona kukamurwa kuita chena passivation (white zinc), light blue (blue zinc), black passivation (black zinc), military green passivation (green zinc) nezvimwewo.
- Electrophoresis Nhema：
Kushandisa nzira yemagetsi yekuisa zvidimbu zve colloidal zve organic resin pazvikamu kuti zvigadzire organic coating layer yemavara akasiyana-siyana, electrophoresis nhema inoshandiswa zvakanyanya muindasitiri, tora nzira nhema semuenzaniso: degreasing-cleaning-phosphating-electrophoresis paint-drying. Inogona kukamurwa kuita anodic electrophoresis (resin ionisation mu negative ions) uye cathodic electrophoresis (resin electrophoresis mu positive ions), uye maitiro ekupenda zvichienzaniswa nekushanda kwekuvaka akanaka, kusvibiswa uye kukuvadza nharaunda kuderedza kuramba kwayo ku neutral salt spray performance mumaawa mazana matatu kana kupfuura, mutengo uye kuramba ngura uye maitiro eDacromet zvakafanana.
- Zinc chena：
Maitiro ekugadzira electroplating ndeaya: kubvisa mafuta – kuchenesa – kusimba kweasidhi isina simba – electroplating zinc – kuchenesa – bvudzi jena rinobvisa mafuta – kuchenesa – kuomesa, uye musiyano we zinc nhema hapana. Kusiyana kwemhinduro ye lat rack ne passivation, white passivation ifirimu isina ruvara inoonekera ye zinc oxide, inenge isina chromium, saka kuramba ngura kana tichienzanisa ne zinc nhema, zinc yebhuruu, zinc ine mavara yakaderera, chiyero cheindasitiri mumaawa 6-12, pane mugadziri we plating uyu nekuvandudza kurongeka kwechiyero che passivation solution kunogona kuitwa kudzivirira neutral salt spray kwemaawa angangoita makumi maviri.
Nekuda kwemhando ye "white zinc plating" yemhando ye "white zinc plating" process treatment process, bvunzo ye "neutral salt spray" yakatanga kuonekwa pamusoro pe "plating corrosion" chena, chiitiko che "red rust" chinoitika mumaawa angangoita makumi mana, saka "white zinc corrosion resistance" chiri nani pane "white nickel". Chitarisiko ne "white nickel" zvichienzaniswa ne "dark zinc", "white zinc" yeruvara rwepakutanga rwe "zinc greenish-white", uye "white nickel" zvichienzaniswa nemusiyano mukuru.
- Nickel Chena：
Maitiro ekuisa mapurasitiki ndeaya: kubvisa mafuta – kuchenesa – kusimba kweasidhi isina simba – kuchenesa – pasi pemhangura – kumutsa – kuchenesa – electroplating nickel- Kuchenesa – passivation – kuchenesa – kuomesa – kana kuvharwa, uye maitiro enickel nhema akafanana, kunyanya plating solution formula yakasiyana, zinc sulfide shoma uye join.Nickel isimbi yero yesirivha-chena, kuti chitarisiko chive nani, ichabatana nenickel-plated brightener. Kuramba kwayo ngura uye nickel nhema hakuna musiyano mukuru mumaawa 6-12, maitiro evagadziri vese achavewo pamusoro pemafuta kana kuvharwa, sekunge kufunga nezvekukanganisa kwengura pazvikamu zvepurasitiki zvezvinhu zvinopinda kunofanira kushandiswa sekutarisa kana mafuta akawandisa.
- Zingi yebhuruu, zingi yegirini：
Maitiro acho akafanana neaya e white zinc, blue zinc is passivated zinc oxide film ine 0.5-0.6mg/dm2 ye trivalent chromium. Green passivation, inozivikanwawo se five-acid passivation, inogona kuwana firimu gobvu re grass-green, solution ye passivation ine phosphate ions, firimu rinopenya re grass-green rinobuda ifirimu rakaomarara, rakasimba rekudzivirira re chromates ne phosphates.
Nekuda kwekudzivirira kwayo ngura, zinc yebhuruu iri nani pane zinc chena, nepo zinc yegirini iri nani pane zinc yebhuruu. Ruvara rwezinc yebhuruu rune bhuruu zvishoma uye zinc chena iri pedyo neindasitiri yekushandisa zvakanyanya, yekupedzisira inogona zvakare kushandiswa sedhizaini yechigadzirwa kana uchishandisa nzira yekutsiva screws.
- Zinc yakasanganiswa (kemikari)：
Muchikamu chekubatidza simbi, maitiro ekugadzira zinc ine mavara akanaka, maitiro ayo ekugadzira simbi ine mavara ndeaya: galvanizing – kuchenesa – 2% – 3% nitric acid kubva muchiedza – kuchenesa – chromium yakaderera – kuchenesa – Kubika kukwegura. Kupisa kwesimbi kwakaderera zvakanyanya, firimu rinononoka, firimu rakatetepa. Kupisa kwakanyanya, firimu racho rakakora uye rakasununguka, harina kusungirirwa zvakasimba. Zvakanakisisa kudzora panosvika madhigirii makumi maviri nemashanu kuti uve nechokwadi chekuti ruvara rwakafanana rwunowanikwa mukati menguva yakati.
Mushure mekupfapfaidza, inofanira kubikwa uye kucheneswa kuti iwedzere kunamira uye kuramba ngura kwefirimu. Peta screws dzakaputirwa ne zinc nekubata pasi pekudzivirira kupfapfaidza munyu mukati memaawa anopfuura makumi mana nemasere, kudzora kwakanaka kunogona kuitwa kwemaawa anopfuura zana.
- Dacromet：
Ndiwo muchidimbu uye dudziro yeDACROMET, kureva kuti flaky zinc-based chromium salt protective coating, inonziwo zinc-aluminium coating. Maitiro ekutanga ndeaya: kubvisa mafuta – kubvisa mafuta – kuputira – kupisa – kutonhora. Maitiro acho anowanzo kuve nekaviri kusvika kana kane kubva pakuputira kusvika pakutonhodza, nekuti screws dzine dip coating dzinofanirwa kuitwa kakawanda.
Maumbirwo acho ari pamusoro pesimbi, akafukidzwa neDacromet solution (kureva, ine scales ye zinc, aluminium [scales inowanzova 0.1-0.2X10-15 microns] Cr03 uye organic matter chaiyo ye highly dispersible mixed aqueous solution), ne300 ° C kana zvakadaro kupisa kuchengetedza zvichibika kwenguva yakati, Dacromet liquid iri muhexavalent chromium inoderedzwa kuita trivalent chromium, zvichikonzera amorphous composite chromate compounds (nCr03) mCr203).
Kudzivirira ngura kwakanaka kwazvo. Munyu usingapindi mvura unosvika maawa 300 kana kupfuura, dambudziko rekuvhara harisi rakafanana, nzvimbo yakatetepa ye5-10um, nzvimbo yakakora ye40um kana zvakadaro, zvinokanganisa kudzika kwedhayamita yescrew, saka kushandisa muchina wekubata screws nescrews dzine dhayamita diki yescrews zvakanaka kuti usashandise maitiro eDacromet senzira yekurapa pamusoro.
Nguva yekutumira: Gunyana-18-2024
