Zomwe zimatchedwa pickling zimagwiritsa ntchito hydrofluoric acid ndi nitric acid solution kutsuka zitsulo za oxide zomwe zimapangidwa pambuyo pa kutentha.Ntchito yankho zikuchokera ndi chiŵerengero makhalidwe: HF (3-8%), HNO3 (10-15%), H2O (otsala ndalama) pamene processing yankho kutentha pa 40-60 °C.

Njira yothirira mapaipi achitsulo:
Yeretsani zinyalala mu mafuta otayira → Madengu odzaza → Kuthira mankhwala → Kutsuka madzi otentha → Kuyeretsa madzi ozizira → Dzimbiri lamankhwala → kutsuka tsitsi lalitali kwambiri → Kusamba kwamadzi osamba → Kutsuka madzi otentha → Kuwuma → kuyesa

The pickling ndondomeko ayenera kulabadira mfundo zotsatirazi:
Mfundo yoyamba:kuvomereza ukubwera kutchulidwa, specifications, kuchuluka ndi kuwongola odulidwa khalidwe osayenera kuvomereza kaye kaye pickling ndi nthawi yake kuzindikira dipatimenti kulamulira khalidwe kapena msonkhano.

Mfundo yachiwiri:Choyamba ndi kuwonjezera asidi molingana ndi chiŵerengero cha mtengo wa sitolo kulamulira pansi, asidi anawonjezera ayenera wogawana kufalitsidwa mu thanki pickling, osati kuwonjezera mu gawo limodzi la thanki asidi;ndiye kuwongolera kukula kwa kuchuluka kwa nthunzi, kuti muzitha kuwongolera kutentha kwa zitsulo za asidi nthawi zambiri kuwongolera kutentha kwa asidi kuti kukhale kotentha pang'ono (pafupifupi madigiri 60), ndipo sayenera kuwongolera kutentha kwambiri kapena kumva kuwira. asidi;otsala ndi kulinganiza ndondomeko malo zitsulo chitoliro khadi, kusiyanitsa osiyana chimango nambala, Chifukwa cha kukhalapo kwa mitundu yosiyanasiyana ya zitsulo pickling nthawi kusiyana.

Mfundo yachitatu:The pickling ndondomeko ulamuliro, komanso sitepe yofunika kwambiri.Osiyana mankhwala zitsulo mipope ndi anamaliza zitsulo pickling ndi degreasing.Amene, kunyamula mankhwala zitsulo mipope akhoza mwachindunji ntchito nayiloni chingwe ku pickling thanki, atapachikidwa yapamwamba zitsulo chitoliro ayenera mchira mkulu mutu otsika, kuti asidi akhoza bwinobwino kulowa chitoliro anabowola;Anamaliza zitsulo chitoliro atapachikidwa mu asidi kusamba pickling, pa nthawi yoyenera kukweza zitsulo chitoliro kubwerera mu thanki asidi, kukhala makutidwe ndi okosijeni pamwamba pa chitoliro zitsulo mkati ndi kunja Picchi izi kuchotsa zitsulo chitoliro, pang'onopang'ono nthambi zayamba kugwetsa. ndi mkulu-anzanu madzi Jets kutsuka chitoliro anaboola, ndiye zitsulo chitoliro mu zikwatu atapachikidwa mu asidi zilowerere yoyenera mipope zitsulo atapachikidwa pa thanki asidi ayenera zilowerere kwa mphindi 10 mu lakuya ndiyeno pang'onopang'ono nthambi muzimutsuka mkati ndi kunja pamwamba. .Kupaka mafuta chitoliro ayenera kuchotsedwa pamwamba mafuta ndi zokometsera laimu zilowerere mu lakuya kwa mphindi 10 ndiyeno muzimutsuka mkati dzenje-ndi-nthambi kugubuduza;kugudubuza zomalizidwa ku chitoliro cha mafuta mu sinki kuti zilowerere kwa nthawi ndithu zitsulo chitoliro chazirala kwathunthu, chitsulo chitoliro mu osamba asidi kwa theka la miniti, ndiyeno mu lakuya ndi kusungunula-ndi-nthambi.

Mfundo yachinayi:ndondomeko pickling pambuyo ntchito yoyendera.Anamaliza pickling zitsulo chitoliro mayeso lolunjika makamaka okusayidi ukhondo wa mkati ndi kunja pamwamba pa zitsulo chitoliro, makamaka ukhondo wa mkati kubala, bwino ntchito ulusi DON ndi chilinganizo anayendera, sampuli kuchuluka ayenera kukhala osachepera 10%.Kutsatiridwa ndi asidi chiyerekezo kuyezetsa zitsulo pamwamba ndi zitsulo chitoliro anayendera mtundu kulephera ayenera kachiwiri pickling;kutali mafuta pamwamba pa chitoliro zitsulo sayenera kutaya mafuta, makamaka sayenera otsalira asidi outflow chitoliro malekezero.