Dab tsi yog pickling phosphating?
Pickling phosphating yog ib qho tshuaj thiab electrochemical cov tshuaj tiv thaiv los tsim phosphate chemical conversion film txheej txheem, phosphate conversion film tsim yog hu ua phosphating film. Phosphating yog ib hom kev kho mob ua ntej, nyob rau hauv txoj cai yuav tsum tau mus rau cov tshuaj hloov dua siab tshiab zaj duab xis kev kho mob, feem ntau yog siv nyob rau hauv lub nto ntawm steel phosphating, non-ferrous hlau (xws li txhuas, zinc) kuj yuav siv tau rau phosphating.
Rau cov txheej txheem ntawm kev kho hlau nto, pickling yog los ntxuav cov hlau nrog ib tug concentration ntawm acid kom tshem tawm cov xeb nto. Phosphating yog los ntub cov kua qaub-ntxuav hlau nrog phosphating tov los tsim cov oxide zaj duab xis rau saum npoo, uas tuaj yeem tiv thaiv xeb thiab txhim kho cov adhesion ntawm cov xim los npaj rau cov kauj ruam tom ntej.
Dab tsi yog qhov txawv ntawm phosphating thiab pickling?
Acidification mechanism yog txawv: pickling yog hais txog kev siv cov tshuaj pickling xws li hydrochloric acid, sulfuric acid thiab lwm yam khoom ntawm lub workpiece los ntxuav tawm cov oxide txheej thiab hmoov av. Lub luag haujlwm ntawm kev ntxuav qhov chaw; Phosphating yog ib txoj kev kho mob, phosphating kua, zinc phosphating kua, manganese phosphating kua, thiab lwm yam, muaj ntau hom phosphating, lub luag hauj lwm yog txawv, xws li phosphating steel hlau yog ua rau cov hlau hlau nyias.
Dab tsi yog qhov cuam tshuam ntawm pickling thiab phosphating ntawm hlau?
1, cov hlau pickling yog tshem tawm xeb thiab tshem tawm cov oxide, rau cov kauj ruam tom ntej uas phosphating, electroplating, passivation thiab lwm yam kev kho mob los npaj.
2, phosphating ntawm hlau yog los txhim kho corrosion kuj ntawm hlau thiab txhim kho cov adhesion ntawm cov xim zaj duab xis.
3, yooj yim tso, pickling yog nyob rau hauv cov hlau nto xeb thiab lwm yam tom qab tshem tawm cov xeb los yog.
