Cov surfactants ua lub luag haujlwm tshwj xeeb dab tsi hauv kev siv cov tshuaj ntxuav pickling?

1 Ua cov tshuaj tiv thaiv acid mist

Thaum lub sijhawm pickling, hydrochloric acid, sulfuric acid, lossis nitric acid yuav ua rau cov hlau substrate sib xyaw thaum sib xyaw nrog xeb thiab nplai, ua rau muaj cua sov thiab tsim cov kua qaub ntau heev. Ntxiv cov surfactants rau hauv cov kua pickling, vim yog qhov kev ua ntawm lawv cov pab pawg hydrophobic, tsim cov txheej txheem zaj duab xis linear uas tsis yaj tau ntawm qhov chaw ntawm cov kua pickling. Siv cov kev ua npuas ntawm surfactants, cov kua qaub vaporization tuaj yeem raug suppressed. Tau kawg, cov tshuaj tiv thaiv corrosion feem ntau raug ntxiv rau hauv cov kua pickling, uas txo qhov ceev ntawm cov hlau thiab txo cov hydrogen evolution, yog li txo cov kua qaub vapor.

2 Ua Ib Qho Kev Sib Koom Tes Pickling thiab Degreasing Cleaning

Feem ntau, kev ntxuav cov khoom siv hauv kev lag luam siv tshuaj lom neeg, yog tias qhov av qias neeg muaj cov roj sib xyaw, kev ntxuav alkaline yuav tsum tau ua ua ntej kom ntseeg tau tias cov khoom pickling zoo, tom qab ntawd yog kev ntxuav acid. Yog tias muaj qee qhov ntawm cov neeg sawv cev degreasing, feem ntau yog cov surfactants nonionic, ntxiv rau hauv cov kua pickling, ob kauj ruam tuaj yeem ua ke ua ib qho txheej txheem. Tsis tas li ntawd, feem ntau cov tshuaj ntxuav khoom khov kho feem ntau muaj sulfamic acid thiab muaj qee qhov ntawm cov surfactants, thiourea, thiab inorganic salts, uas tau diluted nrog dej ua ntej siv. Hom tshuaj ntxuav no tsis yog tsuas yog muaj cov khoom zoo heev rau kev tshem tawm xeb thiab cov nplai thiab kev tiv thaiv xeb tab sis kuj tshem tawm cov roj tib lub sijhawm.