Dab tsi yog pickling phosphating
Nws yog cov txheej txheem rau kev kho hlau nto, pickling yog siv cov kua qaub los ntxuav cov hlau kom tshem tawm cov xeb xeb.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.

Pickling kom tshem tawm xeb thiab tev yog txoj kev siv dav tshaj plaws hauv kev lag luam.Lub hom phiaj ntawm kev tshem tawm xeb thiab tshem tawm ntawm daim tawv nqaij yog ua tiav los ntawm kev siv tshuab stripping ntawm hydrogen tsim los ntawm acid dissolution ntawm oxide thiab corrosion.Cov feem ntau siv nyob rau hauv pickling yog hydrochloric acid, sulfuric acid thiab phosphoric acid.Nitric acid tsis tshua siv vim nws tsim cov pa roj nitrogen dioxide thaum lub sijhawm pickling.Hydrochloric acid pickling yog tsim rau siv nyob rau hauv qis kub, yuav tsum tsis txhob ntau tshaj 45 ℃, kev siv cov concentration ntawm 10% mus rau 45%, kuj yuav tsum tau ntxiv ib tug tsim nyog tus nqi ntawm cov kua qaub pos inhibitor yog tsim nyog.Sulfuric acid nyob rau hauv qis kub pickling ceev yog qeeb heev, yuav tsum tau siv nyob rau hauv nruab nrab kub, qhov kub ntawm 50 ~ 80 ℃, siv concentration ntawm 10% ~ 25%.Qhov kom zoo dua ntawm phosphoric acid pickling yog tias nws yuav tsis tsim cov corrosive residues (ntau dua los yog tsawg dua yuav muaj Cl-, SO42- residue tom qab hydrochloric acid thiab sulfuric acid pickling), uas yog ib qho kev nyab xeeb, tab sis qhov tsis zoo ntawm phosphoric acid yog qhov tsis zoo. tus nqi siab dua, qhov ceev ceev yog qeeb, kev siv dav dav ntawm 10% mus rau 40%, thiab kev kho qhov kub tuaj yeem ua rau kub li 80 ℃.Hauv cov txheej txheem pickling, kev siv cov kua qaub sib xyaw kuj yog ib txoj hauv kev zoo heev, xws li hydrochloric-sulfuric acid mix acid, phospho-citric acid mix acid.Tsim nyog tus nqi ntawm corrosion inhibitor yuav tsum tau ntxiv rau pickling, xeb tshem tawm thiab oxidation tshem tawm tank tov.Muaj ntau ntau hom kev tiv thaiv corrosion, thiab kev xaiv kuj yooj yim, thiab nws lub luag haujlwm yog inhibit hlau corrosion thiab tiv thaiv "hydrogen embrittlement".Txawm li cas los xij, thaum pickling "hydrogen embrittleness" rhiab workpieces, kev xaiv ntawm corrosion inhibitors yuav tsum tau ceev faj tshwj xeeb, vim hais tias qee qhov corrosion inhibitors inhibit cov tshuaj tiv thaiv ntawm ob hydrogen atoms rau hauv hydrogen molecules, uas yog: 2 [H] → H2↑, kom cov concentration. ntawm hydrogen atoms nyob rau saum npoo ntawm cov hlau yog nce, txhim khu "hydrogen embrittleness" nyiam.Yog li ntawd, nws yog ib qho tsim nyog los sab laj cov ntaub ntawv corrosion los yog ua "hydrogen embrittlements" kev ntsuam xyuas kom tsis txhob siv cov tshuaj tiv thaiv corrosion txaus ntshai.

Kev tawg ntawm kev lag luam tu tshuab - ntsuab laser tu
Lub npe hu ua laser ntxuav tshuab yog hais txog kev siv lub zog siab laser beam kom irradiate nto ntawm lub workpiece, kom cov nto ntawm cov av, xeb los yog txheej instantaneous evaporation los yog stripping, high-speed thiab zoo tshem tawm ntawm cov khoom nto. txuas los yog txheej txheej, thiaj li ua tiav cov txheej txheem huv.Nws yog cov cuab yeej tshiab raws li kev cuam tshuam ntawm laser thiab cov khoom siv, thiab muaj cov txiaj ntsig zoo piv nrog cov kev tu ib txwm siv xws li kev tu txhua yam, tshuaj lom neeg corrosion, kua khoom muaj zog cuam tshuam tu, siab zaus ultrasonic tu.Nws yog qhov ua tau zoo, ceev ceev, tus nqi qis, me me thermal load thiab mechanical load ntawm lub substrate, thiab tsis muaj kev puas tsuaj rau kev tu;Cov khib nyiab tuaj yeem rov ua dua tshiab, tsis muaj cov pa phem ib puag ncig muaj kev nyab xeeb thiab txhim khu kev qha, tsis muaj kev puas tsuaj rau kev noj qab haus huv ntawm tus neeg teb xov tooj tuaj yeem tshem tawm ntau qhov sib txawv, cov khoom sib txawv ntawm txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheem yooj yim ua tiav kev tswj tsis siv neeg, chaw taws teeb tswj tu thiab lwm yam.

Lub tshuab ntsuab thiab tsis muaj kuab paug tsis muaj kuab paug laser ntxuav kiag li daws qhov kev thuam ntawm ib puag ncig kev ua qias tuaj ntawm pickling phosphating kho tshuab.Ib qho kev siv tshuab ntawm kev tiv thaiv ib puag ncig thiab kev ntxuav ntsuab - "laser tu" tau los ua thiab sawv nrog dej ntws.Nws txoj kev tshawb fawb thiab kev tsim kho thiab daim ntawv thov ua rau kev hloov pauv tshiab ntawm kev lag luam tu qauv thiab coj qhov tshiab saib rau lub ntiaj teb kev kho mob kev lag luam.