Umehluko ku-Galvanizing, i-Cadmium Plating, i-Chromium Plating, kanye ne-Nickel Plating ye-Steel Pipe Round Steel

Uyini umehluko phakathi kwe-zinc plating, i-cadmium plating, i-chromium plating, ne-nickel plating yepayipi lensimbi kanyeinsimbi bar?

1.I-galvanizing

Izici: I-Zinc izinzile emoyeni owomile futhi ayiguquki kalula.Emanzini nasemoyeni oswakeme, ihlangana nomoya-mpilo noma i-carbon dioxide yakhe ama-oxides noma amafilimu e-alkaline zinc carbonate, angavimbela i-zinc ukuthi ingaqhubeki ne-oxidize futhi idlale indima yokuvikela.I-Zinc isengozini enkulu yokugqwala kuma-asidi, ama-alkali, nama-sulfide.Izembatho ezinothayela ngokuvamile zithola ukwelashwa kwe-passivation.Ngemva kokudlula ku-chromic acid noma isisombululo se-chromate, ifilimu ye-passivation eyakhiwe ayithinteki kalula emoyeni onomswakama, ithuthukisa kakhulu ikhono layo lokulwa nokugqwala.Ezingxenyeni zasentwasahlobo, izingxenye ezinodonga oluncane (ubukhulu bodonga <0.5m), nezingxenye zensimbi ezidinga amandla aphezulu omshini, ukukhishwa kwe-hydrogen kufanele kwenziwe, kuyilapho izingxenye ze-alloy zethusi nezethusi zingase zingadingi ukukhishwa kwe-hydrogen.I-Zinc Plating inezindleko eziphansi, ukucubungula okulula, kanye nemiphumela emihle.Amandla ajwayelekile e-zinc awalungile uma kuqhathaniswa, ngakho-ke i-zinc plating iyi-anodic coating ezinsimbi eziningi.Isicelo: I-galvanizing isetshenziswa kakhulu ezimweni zomoya kanye nezinye izindawo ezivumayo.Kodwa akufanele isetshenziswe njengengxenye yokungqubuzana

2.I-Cadmium Plating

Izici: Ezingxenyeni ezihlangana nomoya wasolwandle noma amanzi olwandle, futhi emanzini ashisayo angaphezu kuka-70 ℃, i-cadmium plating izinzile, inokumelana nokugqwala okuqinile, ukuthambisa okuhle, futhi incibilika kancane ku-dilute hydrochloric acid.Kodwa-ke, incibilika kakhulu ku-nitric acid, ayincibiliki ku-alkali, futhi ama-oxide ayo nawo awancibiliki emanzini.I-Cadmium ithambile kune-zinc enamathelayo, inokonakala okuncane kwe-hydrogen nokunamathela okuqinile.Ngaphezu kwalokho, ngaphansi kwezimo ezithile ze-electrolysis, ukunamathela kwe-cadmium okutholiwe kuhle kakhulu kunokwemboza kwe-zinc.Kodwa igesi ekhiqizwa i-cadmium lapho incibilika inobuthi, futhi usawoti we-cadmium oncibilikayo nawo unobuthi.Ngaphansi kwezimo ezijwayelekile, i-cadmium iyinalethi ye-cathodic phezu kwensimbi, kanye ne-anodic coating emkhathini wasolwandle kanye nezinga eliphezulu lokushisa.Isicelo: Isetshenziswa kakhulu ukuvikela izingxenye ekugqwaleni komkhathi okubangelwa amanzi olwandle noma izixazululo ezifanayo zikasawoti kanye nomhwamuko wamanzi olwandle agcwele.Izingxenye eziningi ezimbonini zezindiza, zokuhamba, nezikagesi, iziphethu, nezingxenye ezinentambo zigcwele i-cadmium.Ingapholishwa, i-phosphated, futhi isetshenziswe njenge-substrate kapende, kodwa ayikwazi ukusetshenziswa njenge-tableware.

3.I-Chrome Plating

Izici: I-Chromium izinzile kakhulu ezindaweni ezinomswakama, i-alkaline, i-nitric acid, i-sulfide, izixazululo ze-carbonate, nama-acids ephilayo, futhi incibilika kalula ku-hydrochloric acid kanye ne-hot concentrated sulfuric acid.Ngaphansi kwesenzo samanje esiqondile, uma ungqimba lwe-chromium lusetshenziswa njenge-anode, luncibilika kalula kusixazululo se-caustic soda.Isendlalelo se-chromium sinokunamathela okuqinile, ukuqina okuphezulu, i-800-1000V, ukumelana nokugqokwa okuhle, ukukhanya okuqinile kokukhanya, nokumelana nokushisa okuphezulu.Ayishintshi umbala ongaphansi kuka-480 ℃, iqala ukwenza i-oxidize ngaphezu kuka-500 ℃, futhi yehlisa kakhulu ubulukhuni ku-700 ℃.Ububi bayo ukuthi i-chromium iqinile, iyaphuka, futhi ijwayele ukuhlukaniswa, egqama kakhulu uma ingaphansi kwemithwalo yomthelela eshintshanayo.Futhi ine-porosity.I-metal chromium idlula kalula emoyeni ukuze yakhe ifilimu ye-passivation, ngaleyo ndlela iguqule amandla e-chromium.Ngakho-ke, i-chromium iba i-cathodic coating on iron.Isicelo: Ukunamathisela ngokuqondile i-chromium phezu kwezingxenye zensimbi njengongqimba olunqanda ukugqwala akulungile, futhi ngokuvamile kufinyelelwa ngokusebenzisa i-electroplating enezingqimba eziningi (okungukuthi i-copper plating → i-nickel → i-chromium) ukuze kuzuzwe inhloso yokuvimbela ukugqwala nokuhlobisa.Njengamanje, isetshenziswa kabanzi ekuthuthukiseni ukumelana nokugqokwa kwezingxenye, ukulungisa ubukhulu, ukukhanya okukhanyayo, nokukhanyisa kokuhlobisa.

i-nickel plating

Izici: I-Nickel inokusimama okuhle kwamakhemikhali emkhathini kanye nesisombululo se-alkaline, ayiguquki kalula, futhi i-oxidized kuphela emazingeni okushisa angaphezu kuka-600 ° C. Incibilika kancane ku-sulfuric acid ne-hydrochloric acid, kodwa incibilika kalula ku-dilute nitric acid.Kulula ukudlula ku-nitric acid egxilile futhi ngenxa yalokho inokumelana nokugqwala okuhle.I-nickel coating inokuqina okuphezulu futhi kulula ukuyisebenzisa.

I-Gapower Meta entshal Inkampani igxile ekuhlinzekeni ngamapayipi ensimbi ane-chrome acwecwe, amagalani, amapayipi ensimbi ane-nickel nezinsimbi eziyindilinga.Le nkampani inesitoko esingamathani angu-20000 wamapayipi ensimbi ayindilinga.Singahlinzeka ngokucaciswa okuhlukahlukene kwamapayipi ensimbi, imigoqo eyindilinga, amapayipi ensimbi aphucuziwe, namashafu aphucuziwe, okuhlanganisa amazinga aseMelika, amaJalimane, amaJapane, naseYurophu.Siyakwamukela ukubuza.