Galvanized
Mpempe akwụkwọ mkpuchi Zinc nke na-agbatị ndụ ngwaahịa ahụ ma na-enyere aka igbochi corrosion.N'ịbụ ndị na-egosipụta okpomọkụ dị ukwuu na ọdịdị mara mma, ọ dị mma maka ịmepụta ụlọ mmepụta ihe, silos, barns, n'etiti ngwa ndị ọzọ. na-enye aka na-egosipụta okpomọkụ.
Akwụkwọ galvanized
Mpempe akwụkwọ galvanized akụkụ anọ nwere nnukwu iguzogide corrosion, dị mma maka iwu ụlọ na facades ụlọ ọrụ.Na ogologo ndụ bara uru, ọ na-eguzogide mmiri na gburugburu ebe obibi
Galvanizing bụ usoro akụ na ụba na nke dị irè iji gbochie mmebi nke ígwè, na ọkpụrụkpụ nke galvanized ígwè bụ n'ozuzu 0.35 ruo 3 mm.The English "galvanizing" pụtara na galvanized oyi akwa nwere ike electrochemically chebe ígwè efere.N'afọ 1742, onye French Meloman (Melomin) mụrụ nke ọma usoro ikpo ọkụ na-ekpo ọkụ.N'afọ 1836, French Sorel (Sorel) tinyere usoro galvanizing na-ekpo ọkụ na-emepụta mmepụta ihe.N'afọ 1837, HW Grawford nwetara patent maka ịmịnye ọkụ na-ekpo ọkụ site na usoro flux.Na 1935, American Sendzimir (T. Sendzimir) tụrụ aro iji nchebe gas mbelata usoro maka na-aga n'ihu na-ekpo ọkụ-mikpu galvanizing nke warara ígwè, nke a na-akpọkarị "Sendzimir usoro".Na 1937, nke mbụ Sendzimir na-aga n'ihu na-ekpo ọkụ galvanizing ahịrị na United States.China malitere imepụta akwa galvanized na-ekpo ọkụ na Anshan n'afọ ndị 1940, na 1979, e wuru eriri galvanizing izizi na-ekpo ọkụ na-aga n'ihu maka igwe warara na Wuhan.
itinye ọkụ
Enwere ụzọ abụọ nke usoro ịgbanye ọkụ na-ekpo ọkụ na usoro electroplating.The ọkpụrụkpụ nke na-ekpo ọkụ-mikpu zinc oyi akwa bụ n'ozuzu 60 ~ 300g / m2 (otu akụkụ), nke a na-eji maka akụkụ na-achọ ike corrosion iguzogide.Ihe mkpuchi zinc electroplated bụ 10-50g / m2 (otu akụkụ), nke a na-ejikarị eme ihe maka akụkụ ndị a na-ese ma ọ bụ akụkụ ndị na-adịghị mma nke na-adịghị achọ nnukwu nkwụsị nke corrosion.A na-ekewa usoro na-ekpo ọkụ na-ekpo ọkụ n'ime usoro flux na usoro mbelata gas na-echebe dịka usoro nhazi mbụ.Usoro nfegharị ahụ bụ ịtụtụkọta efere nchara ahụ agbazere iji wepụ oxides n'elu, wee gafere site na tank mmiri nwere ZnCl2 na NH4Cl, wee banye na tankị zinc a wụrụ awụ maka galvanizing.A na-eji usoro mbelata gas na-echebe ya n'ọtụtụ ebe maka galvanizing na-ekpo ọkụ na-aga n'ihu nke warara ígwè.Ngwongwo ahụ na-ebu ụzọ na-agafe na ọkụ ọkụ na-ekpo ọkụ na-ekpo ọkụ ka ọkụ na-ekpochapụ mmanụ fọdụrụ n'elu, ma n'otu oge ahụ, a na-emepụta ihe nkiri ígwè oxide n'elu;Sponge Iron.Mgbe igwe mgbawa nke elu ya sachara ma rụọ ọrụ ka ọ dị mma ka ọ dịtụ elu karịa nke zinc a wụrụ awụ, ọ na-abanye n'ite zinc na 450-460 ° C, wee na-eji mma ikuku na-achịkwa ọkpụrụkpụ nke oyi akwa zinc.N'ikpeazụ, ọ na-agafe na ngwọta chromate iji melite nchara ọcha.
Electrorating
Dị ka ihe ngwọta plating na-eji, enwere ike kewaa ya na usoro alkaline na usoro acid.Ihe ngwọta nke alkaline plating nwere ọnụ ahịa dị elu, na-emetọ gburugburu ebe obibi, mmepụta mmepụta dị ala, na mkpuchi mkpuchi adịghị mma, n'ihi ya, a naghị eji ya eme ihe n'ezie.Ihe ndị bụ isi nke ngwọta nke acid plating bụ ZnSO4 · 7H2O, NH4Cl na Al2 (SO4) 3 · 18H2O, wdg Na zinc dị ọcha dị ka anode na warara ígwè dị ka cathode, n'okpuru omume nke ugbu a, zinc anode efere na-agbaze. banye Zn2+ n'ime plating ngwọta, na Zn2+ na-ebelata ka ọla zinc na cathode na-edebe n'elu nke warara ígwè.A na-edozi ihe mkpuchi ahụ na ngwakọta ngwakọta nke phosphate na chromate, nke nwere ike imeziwanye ihe osise, na elu nke mpempe akwụkwọ electro-galvanized na-egbuke egbuke ma dị mma, bụ nke a na-ejikarị na ụlọ ọrụ ụgbọ ala n'oge gara aga.N'ime afọ ndị na-adịbeghị anya, a gbasaa ngwa ngwa na ụlọ ọrụ eletriki na akụkụ ndị ọzọ, nke kwalitere mmepe nke ụlọ ọrụ mpempe akwụkwọ electro-galvanized.N'afọ ndị 1970, e mepụtakwara mpempe akwụkwọ galvanized nwere otu akụkụ.
Oge nzipu: Mar-10-2022
