Nekutonga kwe hydrochloric acid washing tank, chinhu chinonyanya kukosha ndechekudzora nguva yekunhonga uye hupenyu hwetangi rekunhonga, kuitira kuti ive nechokwadi chekubudirira kwakanyanya uye hupenyu hwesevhisi yepickling tank.
Kuti uwane yakanakisa pickling mhedzisiro, kuwanda kwehydrochloric acid kunofanirwa kutanga kudzorwa, uye ipapo izvo zviri mukati meioni yesimbi (iron salt) mumushonga wepickling unofanirwa kudzorwa.Nekuti kwete chete kuwanda kweasidhi kunozokanganisa iyo pickling maitiro eiyo workpiece, asiwo zvirimo zvesimbi ions zvinoderedza huwandu hwechikamu cheiyo pickling mhinduro, iyo ichakanganisawo pickling mhedzisiro uye kumhanya kweiyo workpiece.Izvo zvakakosha kucherechedza kuti kuti uwane yakanakisa pickling kunyatsoita, iyo pickling solution inofanirawo kunge iine imwe chiyero che iron ions.
(1)Nguva yekubika
Muchokwadi, nguva yekunhonga inotsamira pakusangana kwehydrochloric acid/ iron ions (iron salt) uye tembiricha yemushonga wekunhonga.
Hukama pakati pepickling nguva uye zinc zvemukati:
Icho chinhu chinonyatsozivikanwa mukupisa dip galvanizing Operations kuti kushandiswa kwekudzivirira overpickling yegalvanized workpieces kunokonzera kuwedzera zinc loading, kureva "overpickling" inowedzera kushandiswa kwezinc.
Kazhinji, kunyudzwa mupickling tank kweawa imwe yakakwana kubvisa zvachose ngura.Dzimwe nguva, pasi pemamiriro ekushanda efekitari, iyo yakapfava workpiece inogona kuiswa mu pickling tank usiku hwose, kureva, kunyudzwa kwemaawa 10-15.Zvishandiso zvakadaro zvesimbi zvakaputirwa ne zinc yakawanda kupfuura yakajairika nguva yekunhonga.
(2)Best Pickling
Iyo yakanakisa pickling mhedzisiro yeiyo workpiece inofanira kunge iri apo kuunganidzwa kwehydrochloric acid uye kuwanda kweiyo inonaya iron ion (iron munyu) inosvika pachiyero.
(3)Kugadzirisa nzira yeasidhi mhedzisiro inoderera
Kana iyo pickling solution inoderera kana kurasikirwa nepickling effect nekuda kwekuzara kwesimbi ions (iron salts), inogona kuderedzwa nemvura kuti idzorere basa rekuchera.Kunyangwe kuwanda kwe hydrochloric acid kwakaderedzwa, basa rekunhonga rinogona kuramba richiitwa, asi chiyero chinononoka.Kana iyo asidi itsva yakawedzerwa kune pickling solution ine saturated iron content, iyo itsva hydrochloric acid washing solution inowira pamusoro penzvimbo yekuzadza, uye kunhonga kwechishandiso hakuzogoneki.
(4)Matanho ekurapa mushure mekunge kunyungudika kweasidhi kwadzikira
Kana iyo pickling solution ikashandiswa kwenguva yakati rebei, kutarisisa kwayo kunodzikira uye kutova tsvina asidhi.Nekudaro, iyo asidhi panguva ino haigone kudzoserwa nemugadziri, uye ichiri kuchengetedza imwe kukosha kwekushandisa.Kuti ushandise iyo yakaderera asidhi ine yakadzikira yekumisikidza, panguva ino, iyo maworkpiece ane emuno inodonha plating mune inopisa-dip galvanizing uye inoda kunyudzwa zvakare inoiswa mukati Pakati pavo, pickling uye reprocessing zvakare inobudirira kushandiswa kwe. tsvina asidhi.
Nzira yekutsiva yekare asidhi nehydrochloric acid pickling solution:
Kana iyo iron munyu muasidhi yekare ichipfuura izvo zvakatarwa, inofanira kutsiviwa neasidhi itsva.Nzira yacho ndeyokuti iyo asidi itsva inotora 50%, asidhi yekare inowedzerwa kune itsva asidi mushure mekunaya, uye huwandu hweasidhi yekare ndeye ~ 50%.Iron salt ine zvinyorwa zvisingasviki 16% inogona kuwedzera basa re pickling solution, iyo yakasiyana ne acid sparse, uye inochengetedza huwandu hweasidhi.
Nekudaro, nenzira iyi, nekufambira mberi kwehunyanzvi hwekupisa-dip galvanizing, huwandu hweasidhi yekare yakawedzerwa inofanira kuitwa pahwaro hwekunyatso kudzora zviri mukati mesimbi munyu weasidhi yekare, uye kuwanda kwesimbi munyu mune ichangoburwa. yakagadzirirwa hydrochloric acid mhinduro inofanirwa kudzorwa mukati mechanza cheruoko rwako.Mukati mehuwandu, haufanirwe kutevedzera zvimiro zveupofu.
Workpiece simbi zvinhu uye pickling kumhanya
Iyo yekumhanyisa kumhanya inosiyana nekuumbwa kweiyo pickled simbi workpiece uye chiyero chinokonzeresa.
Iyo kabhoni yemukati musimbi ine pesvedzero huru payero yekuparara kwesimbi matrix.Kuwedzera kwekabhoni yemukati kuchawedzera kuparara kweyero yesimbi matrix nekukurumidza.
Kuparara kwehuwandu hwesimbi workpiece matrix mushure mekutonhora uye kupisa kushandiswa kunowedzera;nepo kunyungudika chiyero chesimbi workpiece mushure mekuita annealing ichaderera.Mune iron oxide sikero pamusoro pesimbi yekushanda, mwero wekunyungudika kwesimbi monoxide yakakura kupfuura yeferric oxide uye ferric oxide.Mashizha esimbi akakungurutswa ane iron monoxide yakawanda pane simbi yakanyungudutswa.Naizvozvo, yayo pickling kumhanya inokurumidza zvakare.Iko kukora kweganda re iron oxide, ndiko kurebesa nguva yekuchera.Kana ukobvu hwesimbi yesimbi oxide isina kufanana, zviri nyore kugadzira emunharaunda under-pickling kana over-pickling defects.
Nguva yekutumira: Feb-27-2023