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calamine e entsoeng ka masenke, lakane e entsoeng ka masenke, lithaele tsa masenke le marulelo, lithaele tsa marulelo a aluzinc

Sesetiloe

Letlapa le koahetsoeng ka zinki le lelefatsang bophelo ba sehlahisoa le ho thusa ho thibela kutu.Ka ponahalo e kholo ea mocheso le ponahalo e khahlehang, e loketse kaho ea mehaho ea liindasteri, li-silos, meliko, har'a lisebelisoa tse ling.e kenya letsoho ho bonahatsa mocheso.

03 (1)

Letlapa la Galvanized
Letlapa le nang le likoti tse mahlakore a mabeli tse nang le khanyetso e phahameng ea kutu, e loketseng kaho ea marulelo le li-facade tsa indasteri.Ka bophelo bo bolelele ba molemo, e hanyetsana le libaka tse mongobo le

Galvanizing ke mokhoa oa moruo le o sebetsang oa ho thibela ho bola ha tšepe, 'me botenya ba tšepe ea galvanized hangata ke 0.35 ho 3 mm.Senyesemane "galvanizing" e bolela hore lera galvanized ka electrochemically sireletsa poleiti tšepe.Ka 1742, Mofora Meloman (Melomin) o ile a ithuta ka katleho mokhoa oa ho futhumatsa hot-dip galvanizing.Ka 1836, French Sorel (Sorel) e ile ea sebelisa mokhoa oa ho kenya metsi a chesang ho hlahisa lihlahisoa tsa indasteri.Ka 1837, HW Grawford e ile ea fumana patent ea hot-dip galvanizing ka mokhoa oa flux.Ka 1935, American Sendzimir (T. Sendzimir) o ile a etsa tlhahiso ea ho sebelisa mokhoa o sireletsang oa ho fokotsa khase bakeng sa galvanizing e tsoelang pele ea hot-dip ea tšepe ea strip, e tsejoang ka hore ke "Sendzimir method".Ka 1937, mohala oa pele oa Sendzimir o tsoelang pele oa hot-dip galvanizing o ile oa hahoa United States.China e ile ea qala ho hlahisa lilakane tse chesang tse chesang Anshan lilemong tsa bo-1940, 'me ka 1979, mohala oa pele o tsoelang pele oa ho kenya litšepe o hahuoa Wuhan.

03 (3)
03 (2)

Chelete e chesang
Ho na le mefuta e 'meli ea mokhoa oa hot-dip galvanizing le mokhoa oa electroplating.Botenya ba lesela la zinki tse chesang-dip hangata ke 60 ~ 300g/m2 (lehlakore le le leng), le sebelisetsoang likarolo tse hlokang khanyetso e matla ea kutu.Electroplated zinki layer ke 10-50g/m2 (lehlakoreng le le leng), le sebelisoang haholo bakeng sa likarolo tse pentiloeng kapa likarolo tse sa pentiloeng tse sa hlokeng khanyetso e phahameng ea kutu.Mokhoa oa ho chesa o arotsoe ka mokhoa oa ho phalla le mokhoa o sireletsang oa ho fokotsa khase ho latela mokhoa oa pele ho phekolo.Mokhoa oa flux ke ho khetla poleiti ea tšepe e kentsoeng ho tlosa li-oxide ka holim'a metsi, ebe o feta ka tanka ea flux e nang le ZnCl2 le NH4Cl, ebe o kenya tanka ea zinki e qhibilihisitsoeng bakeng sa ho galvanizing.Mokhoa oa ho fokotsa khase o sirelletsang o sebelisoa haholo bakeng sa galvanizing e tsoelang pele ea hot-dip ea tšepe ea hlobolisa.The strip tšepe pele ho feta ka lelakabe-heated preheating sebōpi ho chesa tima masala a oli holim'a metsi, 'me ka nako e tšoanang, e tšepe oxide filimi thehoa holim'a metsi;Tšepe ea Seponche.Ka mor'a hore tšepe ea hlobolisa eo bokaholimo ba eona bo hloekisitsoeng le ho kenngoa tšebetsong bo pholile ho fihlela mocheso o phahame hanyenyane ho feta oa zinki e qhibilihisitsoeng, e kena ka pitseng ea zinki ka 450-460 ° C, 'me e sebelisa thipa ea moea ho laola botenya ba lesela la zinki.Qetellong, e fetisoa ka tharollo ea chromate ho ntlafatsa ho hanyetsa mafome a masoeu.

Electroplating
Ho latela tharollo ea plating e sebelisitsoeng, e ka aroloa ka mokhoa oa alkaline le mokhoa oa asiti.Tharollo ea alkaline plating e na le theko e phahameng, e silafatsa tikoloho, tlhahiso e tlaase ea tlhahiso, le boleng bo tlaase ba ho roala, kahoo ha e le hantle ha e sebelisoe.Likarolo tse ka sehloohong tsa tharollo ea acid plating ke ZnSO4 · 7H2O, NH4Cl le Al2 (SO4) 3 · 18H2O, joalo-joalo Ka zinki e hloekileng e le anode le tšepe ea hlobo e le cathode, tlas'a ketso ea hona joale, poleiti ea anode ea zinki e qhibiliha. ka har'a Zn2+ ka har'a tharollo ea plating, 'me Zn2+ e fokotsoa ho zinki ea tšepe ka har'a cathode ebe e kenngoa holim'a tšepe ea hlobolisa.Ho roala ho tšoaroa ka tharollo e tsoakiloeng ea phosphate le chromate, e ka ntlafatsang ho penta, 'me holim'a letlapa la tšepe ea elektro-galvanized le khanya ebile le boreleli, e neng e sebelisoa haholo-holo indastering ea likoloi nakong e fetileng.Lilemong tsa morao tjena, sebaka sa kopo se atoloselitsoe indastering ea motlakase le likarolo tse ling, tse khothalelitseng nts'etsopele ea indasteri ea pampiri ea elektro-galvanized.Lilemong tsa bo-1970, ho ile ha etsoa lilakane tse nang le lehlakore le le leng.


Nako ea poso: Mar-10-2022

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