Ngesikhathi sokufakwa kanye nokwendlaleka kwenkundla yesakhiwo se-grating yensimbi, kuvame ukutholakala ukuthi amapayipi noma izinto zokusebenza zidinga ukudlula endaweni yensimbi yensimbi ziqonde phezulu. Ukuze imishini yamapayipi ikwazi ukudlula endaweni yesikhulumi ngokushelela, ngokuvamile kudingekile ukunquma indawo nobukhulu bezikhala phakathi nenqubo yokuklama, futhi umenzi wokugaya insimbi uzokwenza ukukhiqizwa okwenziwe ngokwezifiso. Inqubo yokukhiqiza ngendlela oyifisayo kuqala idinga umnyango wokuklama igridi yensimbi ukuze uxhumane futhi ushintshisane ngolwazi nomnyango wokuklama isakhiwo sensimbi, umhlinzeki wezinto zokusebenza, kanye nomnyango wokuhlola nokubhala amamephu. Ngenxa yezici eziningi ezihlobene ezihilelekile, nobukhulu nendawo yamathuluzi kunokungaqiniseki okuthile. Ngesikhathi sokufakwa nokwakhiwa, kuvame ukuvela ukuthi izimbobo ezigcinwe ngokwezifiso azikwazi ukuhlangabezana nezidingo zesayithi. Ngenxa yalesi simo, ukuze kuqinisekiswe izinga lokukhiqiza lensimbi yensimbi futhi kuthuthukiswe ukuklama nokusebenza kahle kokukhiqiza kwensimbi yensimbi. Kumklamo wamanje kanye nenqubo yokukhiqiza, ezinye izimbobo ezinobubanzi obuncane okunzima ukuzinquma izindawo zazo ngokuvamile azihlelwanga futhi azicutshungulwa. Esikhundleni salokho, izinqubo zokucutshungulwa kwesibili ezifana nokuvulwa kwendawo, ukusika, i-welding, nokugaya kwenziwa ngokuvumelana nesimo samanje ngesikhathi sokufakwa nokwakhiwa kwe-steel grating.
Njengento entsha, i-galvanized steel grating isetshenziswa kabanzi. I-galvanizing isiphenduke indlela ebalulekile yokulwa nokugqwala kwe-gratings yensimbi, hhayi nje ngoba i-zinc ingakha ungqimba oluqinile lokuvikela phezu kwensimbi, kodwa futhi ngoba i-zinc inomphumela wokuvikela we-cathodic. Lapho i-galvanized steel grating ithunyelwa kusayithi, ukucubungula okwesibili kanye nokushisela ngezinye izikhathi kuyadingeka ngenxa yesidingo sokufakwa. Ukuba khona kwesendlalelo se-zinc kuletha ubunzima obuthile ekushiseleni kwegridi yensimbi.
Ukuhlaziywa kokushisela kwegridi yensimbi ebilisiwe
I-galvanized steel grating iwukuvimbela ingaphezulu le-grating yensimbi ukuthi ingagqwali futhi yandise impilo yayo yesevisi. Ungqimba lwe-zinc yensimbi lubekwe phezu kwe-grating yensimbi, futhi ingaphezulu le-grating yensimbi ethathiwe izoba njengezimbali. Ngokwezindlela zokukhiqiza nezindlela zokucubungula, ingahlukaniswa ngezigaba ezilandelayo: ① ishidi likaphethiloli elishisayo; ② ishidi lensimbi elenziwe nge-electrogalvanized. Iphuzu lokuncibilika le-zinc lingu-419℃ kanti indawo yokubilisa ingu-907℃, ephansi kakhulu kunendawo yokuncibilika yensimbi engu-1500℃. Ngakho-ke, ngesikhathi senqubo yokushisela, ungqimba lwama-galvanized luyancibilika ngaphambi kwezinto zomzali. Ngemuva kokuhlaziywa okungenhla, izakhiwo zemishini kanye nezakhiwo ezibonakalayo zeshidi elifakwe uthayela ziyafana nalezo zeshidi lensimbi ye-carbon evamile. Umehluko kuphela ukuthi kukhona ungqimba lwama-galvanized ebusweni be-grating yensimbi. Inqubo ye-Welding ye-grating yensimbi ye-galvanized
(1) Ukushisela i-arc ngesandla
Ukuze unciphise umusi we-welding futhi uvimbele isizukulwane sokuqhekeka kwe-welding nama-pores, ungqimba lwe-zinc eduze ne-groove kufanele lususwe ngaphambi kokushisela. Indlela yokususa ingaba ukubhaka ilangabi noma i-sandblasting. Umgomo wokukhetha izinduku zokushisela ukuthi izakhiwo zemishini yensimbi yokushisela kufanele zibe seduze ngangokunokwenzeka nempahla yomzali, futhi okuqukethwe kwe-silicon ensimbi yomlilo wensimbi yokushisela kufanele kulawulwe ngaphansi kuka-0.2%. Ukuze uthole i-low-carbon steel galvanized steel grating, izinduku zokushisela i-J421/J422 noma i-J423 kufanele zisetshenziswe kuqala. Lapho ushisela, zama ukusebenzisa i-arc emfushane futhi ungavumeli ukujikijela kwe-arc ukuvimbela ukwanda kwendawo encibilikisiwe ye-zinc coating, qinisekisa ukumelana nokugqwala kwendawo yokusebenza futhi unciphise inani lentuthu.
(2) Ukushisela okuvikelwe kwegesi ye-Metallurgical electrode kusebenzisa i-CO2 yegesi evikelekile yokushisela noma ukushisela okuvikelwe kwegesi okuxubile okufana ne-Ar+CO2, i-Ar+02 yokushisela. Igesi evikelayo inomthelela omkhulu kokuqukethwe kwe-Zn ekushiseleni. Uma i-CO2 ehlanzekile noma i-CO2+02 isetshenziswa, okuqukethwe kwe-Zn ku-weld kuphezulu, kuyilapho uma i-Ar+CO2 noma i-Ar+02 isetshenziswa, okuqukethwe kwe-Zn ku-weld kuphansi. Okwamanje kunomphumela omncane kokuqukethwe kwe-Zn ku-weld. Njengoba i-welding current ikhula, okuqukethwe kwe-Zn ku-weld kuncipha kancane. Uma usebenzisa i-welding evikelwe ngegesi ukushisela i-galvanized steel grating, intuthu yokushisela inkulu kakhulu kune-arc welding eyenziwa ngesandla, ngakho-ke kufanele kuqashelwe ngokukhethekile ekukhipheni umoya. Izinto ezithinta inani nokwakheka komusi ikakhulukazi igesi yamanje nevikelayo. Uma i-current ikhudlwana, noma ikhudlwana okuqukethwe kwe-C02 noma i-02 kugesi evikelayo, inkulu intuthu yokushisela, kanye nokuqukethwe kwe-Zn0 emsini nakho kuyanda. Okuqukethwe okuphezulu kwe-Zn0 kungafinyelela cishe ku-70%. Ngaphansi kokucaciswa okufanayo kwe-welding, ukujula kwe-grating yensimbi ye-galvanized kukhulu kunokwe-grating yensimbi engaphekiwe.
Isikhathi sokuthumela: Jun-25-2024