Qhov kub thiab txias

A: Phosphating tus neeg sawv cev yog cov tshuaj siv tshuaj siv rau kev kho mob hlau. Nws feem ntau tsim cov phosphate zaj duab xis (phosphating zaj duab xis) ntawm cov hlau nto los ntawm cov tshuaj tiv thaiv, uas ua lub luag haujlwm hauv kev tiv thaiv xeb, txhim kho txheej adhesion thiab hnav tsis kam. Nws yog dav siv nyob rau hauv ua ntej - cov txheej txheem kho hauv tsheb, tshuab, khoom siv hauv tsev thiab lwm yam lag luam.

A: Cov khoom tseem ceeb muaj xws li phosphates (xws li zinc ntsev, manganese ntsev, hlau ntsev), acids (feem ntau phosphoric acid), accelerators (nitrates, nitrites, thiab lwm yam), complexing agents thiab additives. Ntau hom phosphating cov neeg ua haujlwm muaj qhov sib txawv ntawm qhov sib txawv. Piv txwv li, zinc -raws li phosphating agents yog zinc phosphate, thaum hlau-raws li phosphating agents yog ferrous phosphate.

A: Thaum tus neeg sawv cev phosphating los rau hauv kev sib cuag nrog cov hlau nto, nws dissolves cov hlau los ntawm acid etching los tsim ferrous ions; Nyob rau tib lub sij hawm, phosphate reacts nrog hlau ions los tsim insoluble phosphate crystals, uas tso rau ntawm cov hlau nto los ua ib tug ntxeem tau phosphate zaj duab xis. Cov txheej txheej zaj duab xis tsim cov tshuaj tiv thaiv nrog cov hlau substrate thiab cov txheej tom ntej los txhim kho kev tiv thaiv kev ua haujlwm.

A: Lub neej kev pab cuam ntawm cov tshuaj phosphating yog nyob ntawm yam xws li kev ntim khoom, cov khoom siv hlau, thiab cov txheej txheem tswj. Raws li ib txwm muaj, qhov nruab nrab - kub zinc-raws li phosphating tov tuaj yeem ua 200-500㎡ / m³. Yog hais tias sediment los yog concentration imbalance tshwm sim ntau zaus, lub tank kua yuav tsum tau hloov.

A: Khaws rau hauv qhov chaw txias thiab qhuav, tsis txhob tshav ntuj ncaj qha thiab kub siab (kub tsawg dua lossis sib npaug li 40 degree).
Khaws rau hauv lub thawv kaw kom tsis txhob muaj dej evaporation lossis impurities los ntawm kev sib xyaw.
Ntau hom phosphating cov neeg sawv cev yuav tsum tau muab cais kom tsis txhob sib xyaw.
Lub npe, concentration thiab hnub tsim khoom ntawm cov reagent chim yuav tsum raug cim, thiab thawj -hauv-thawj- tawm hauv paus ntsiab lus yuav tsum ua raws.

A: Phosphating tus neeg saib xyuas tiv thaiv los ntawm kev tsim cov phosphate zaj duab xis, uas yog ntxeem tau thiab muaj kev sib raug zoo nrog cov txheej; chromium-dawb passivating tus neeg saib xyuas (xws li silane, zirconium ntsev) tsim ib nano- nplai passivation zaj duab xis, uas yog ib puag ncig tus phooj ywg, tab sis nws cov corrosion kuj thiab kev sib raug zoo nrog cov txheej yog me ntsis inferior rau phosphating zaj duab xis, thiab nws yog haum rau scenes uas tsis tshua muaj siab tiv thaiv ib puag ncig.