Piauau
Pepa whakakikoruatia konutea hei whakaroa i te ora o te hua me te aukati i te pirau.Ma te nui ake o te whakaata o te wera me te ahua ataahua, he pai mo te hanga i nga whare ahumahi, nga waahi, nga whare witi, me etahi atu tono.ka whai hua ki te whakaata i te wera.
Pepa piauau
Pepa piauau kowaowao tapawhā me te tino ātete ki te waikura, he pai mo te hanga i nga tuanui me nga papahanga ahumahi.Ma te roa o te oranga whai hua, he atete ki nga taiao makuku me te
Ko te piauau he tikanga ohaoha me te whai hua ki te aukati i te pirau o te rino, me te matotoru o te rino piauau ko te tikanga 0.35 ki te 3 mm.Ko te reo Ingarihi "galvanizing" te tikanga ka taea e te paparanga piauau te tiaki matū hiko te pereti maitai.I te tau 1742, i pai te ako a te French Meloman (Melomin) ki te tikanga whakamaarama wera.I te tau 1836, ka whakamahia e te French Sorel (Sorel) te tikanga whakamaarama wera ki te hanga ahumahi.I te tau 1837, i whiwhi a HW Grawford i te patent mo te piauau wera ma te tikanga rere.I te tau 1935, i kii a American Sendzimir (T. Sendzimir) ki te whakamahi i te tikanga whakaheke hau whakamarumaru mo te whakamarumaru wera-wera o te rino Unuhia, e mohiotia ana ko "tikanga Sendzimir".I roto i te 1937, te tuatahi Sendzimir tonu wera-tuku galvanizing aho i hanga i roto i te United States.I timata a Haina ki te hanga pepa piauau wera-wera i Anshan i nga tau 1940, a i te tau 1979, i hangaia te raina piauau wera-wera tuatahi mo te tira tira i Wuhan.
Ruku wera
E rua nga momo o te tikanga galvanizing wera-tuku me te tikanga electroplating.Ko te matotoru o te paparanga konutea wera-wera ko te tikanga 60 ~ 300g/m2 (taha kotahi), e whakamahia ana mo nga waahanga e hiahia ana kia kaha te aukati i te waikura.Ko te paparanga zinc electroplated ko 10-50g/m2 (te taha kotahi), e whakamahia nuitia ana mo nga waahanga peita, mo nga waahanga kore ranei e kore e hiahiatia te aukati teitei.Ko te tikanga wera-wera kua wehea ki te tikanga rere me te tikanga whakaheke hau tiaki i runga i te tikanga o mua.Ko te tikanga rere ko te pikara i te pereti tira hei tango i te waikura i runga i te mata, katahi ka haere ma roto i te taika rere kei roto ZnCl2 me te NH4Cl, katahi ka uru ki te taika konutea whakarewa mo te piauau.Ko te tikanga whakaheke hau whakamarumaru e whakamahia nuitia ana mo te galvanizing wera-wera tonu o te tira rino.Ko te tira tira i te tuatahi ka haere i roto i te oumu whakamahana i te mura o te ahi ki te tahu i te toenga hinu i runga i te mata, a i taua wa ano, ka hanga he kiriata waikura rino ki runga;Hautai rino.I muri i te whakamahana o te rino kua purea, kua whakahohehia ki te pāmahana paku teitei ake i tera o te konutea whakarewa, ka uru ki roto i te kohua konutea i te 450-460°C, ka whakamahi i te maripi hau hei whakahaere i te matotoru o te paparanga konutea.Ka mutu, ka tukuna ki te otinga chromate hei whakapai ake i te aukati waikura ma.
Whakakikoruatia
E ai ki te otinga whakakikorua i whakamahia, ka taea te wehea ki te tikanga kawakore me te tikanga waikawa.Ko te otinga whakakikorua kawakore he utu nui, ka whakapoke i te taiao, he iti te pai o te whakaputa, me te kore o te kounga whakakikorua, na reira kaore i te whakamahia.Ko nga waahanga matua o te wairewa whakakikorua waikawa ko te ZnSO4·7H2O, NH4Cl me Al2(SO4)3·18H2O, me etahi atu. Ki te konutea parakore hei anode me te tarai i te maitai hei cathode, i raro i te mahi o naianei, ka rewa te pereti anode zinc. ki te Zn2+ ki roto i te wairewa whakakikorua, ka whakahekehia te Zn2+ ki te konutea konganuku i te cathode ka waiho ki te mata o te tira tira.Ka tukuna te paninga ki te otinga whakauru o te phosphate me te chromate, ka taea te whakapai ake i te peita, a, he maamaa, he maeneene hoki te mata o te papanga hiko hiko, he mea tino whakamahia i roto i te umanga motuka i mua.I nga tau kua pahure ake nei, kua whakawhānuihia te waahanga o te tono ki te ahumahi hiko me etahi atu waahanga, i whakatairanga i te whakawhanaketanga o te ahumahi pepa hiko.I te tekau tau atu i 1970, i hangaia ano nga pepa piauau kotahi-taha.
Wā tuku: Maehe-10-2022
