Whakapaipai piauau
Ko te konutea he pumau i roto i te hau maroke me te kore e ngawari ki te huri i te tae.I roto i te wai me te hau makuku, ka tauhohe ki te hāora, te waro hauhā ranei ki te hanga i te waikura, i te kawakore zinc carbonate kiriata ranei, ka taea te aukati i te konutea kia kore e mau tonu te waikura me te whai waahi tiaki.
He tino whakaraerae te Zinc ki te waikura i roto i te waikawa, te kawakore me te sulfide.Ko te paparanga piauau kei te nuinga o te waa ka paahihia.I muri i te paheketanga i roto i te waikawa chromic, i te otinga chromate ranei, ehara i te mea ngawari ki te taunekeneke ki te hau makuku te kiriata passivation i hangaia, a ka tino whakanuia te kaha anti-corrosion.Mo nga waahanga o te puna, ko nga waahanga angiangi-taiepa (te matotoru o te pakitara <0.5m) me nga waahanga rino e hiahia ana kia kaha te mahi miihini, me whakahaere te tango hauwai, me nga waahanga konukura me te konukura koranu e kore e tangohia te hauwai.
Ko te kaha paerewa o te konutea he ahua kino, no reira ko te paninga konutea he paninga anodic mo nga konganuku maha.
Taupānga: Ka whakamahia te piauau i roto i nga ahuatanga o te hau me etahi atu taiao pai.Engari kaua mo nga wahanga waku.
Whakakikorua Cadmium
Ko nga waahanga e pa ana ki te hau o te moana, ki te wai moana ranei me te wai wera i runga ake i te 70 ℃, he ahua pumau te paninga cadmium, he kaha te aukati i te waikura, he pai te whakahinuhinu, he tino puhoi te rewa i roto i te waikawa puota waimeha, engari he tino ngawari ki te rewa i roto i te waikawa nitric., karekau e rewa ki te kawakore, a, karekau ona waikura e rewa ki te wai.
Ko te paninga cadmium he ngawari ake i te paninga zinc, he iti te hauwai o te whakakikorua, me te kaha o te adhesion, a, i raro i etahi tikanga electrolytic, he ataahua atu te whakakikorua o te cadmium kua whiwhi i te paninga zinc.Engari ko te hau ka puta ka rewa te cadmium he paitini, he paitini hoki te tote cadmium whakarewa.I raro i nga tikanga noa, ko te cadmium he paninga cathodic i runga i te maitai me te paninga anodic i roto i nga hau moana me te pāmahana teitei.
Taupānga: Ka whakamahia te nuinga ki te tiaki i nga waahanga mai i te waikura o te rangi o te wai moana me nga otinga tote rite me te kohu wai moana kukū.He maha nga waahanga rererangi, moana me nga waahanga hiko hiko, puna, me nga waahanga miro kua whakakikoruatia ki te cadmium.Ka taea te whakakoi, te phosphatized ka whakamahia hei peita peita, engari kaore e taea te whakamahi hei taputapu tepu.
Whakakikorua Chrome
He tino pumau te Chromium i roto i te hau makuku, kawakawa, waikawa nitric, sulfide, wairewa warowaiha me te waikawa waro, a he ngawari te wairewa i roto i te waikawa hauwai me te waikawa pungatara wera.
I raro i te mahi o te naianei tika, ki te whakamahia te paparanga chromium hei anode, he ngawari te whakarewa i roto i te wairewa houra.
Ko te paparanga chromium he kaha te piri, he pakeke teitei, 800 ~ 1000V, he pai te kakahu, he kaha te whakaata marama, me te wera nui.Tino heke.Ko te kino o te chromium he uaua, he pakarukaru, he ngawari ki te taka atu, ka tino kitea i te wa e pa ana ki nga taumahatanga ohorere.
I te wa ano, he maiengi te chrome.Ko te chromium whakarewa he ngawari te whakawhiti i te rangi ki te hanga i te kiriata passivation, na reira ka huri te kaha o te chromium.Ko te Chromium i runga i te rino ka noho hei paninga cathodic.
Taupānga: Ehara i te mea pai ki te pereti chrome i runga i te mata o nga waahanga rino hei paparanga anti-corrosion.Ko te tikanga, ka taea e te whakakikorua te paparanga-maha (ara te whakakikorua parahi → nickel → chromium) te kaupapa o te aukati waikura me te whakapaipai.I tenei wa, ka whakamahia nuitia ki te whakapai ake i nga kakahu o nga waahanga, te whakatikatika i nga waahanga, te whakaata marama me nga rama whakapaipai.
Whakakikorua nika
He pai te noho matū o te Nickel i roto i te hau me te reitia, ehara i te mea ngawari ki te whakarereke i te tae, ka whakapouri noa i te wa i runga ake te mahana i te 600°C.Ka memeha haere i roto i te waikawa pungatara me te waikawa pūhaumāota, engari he ngawari te wairewa ki te waikawa nitric dilute.He ngawari ki te haere i roto i te waikawa nitric kukū, na reira he pai te aukati waikura.
He pakeke te whakakikorua nikel, he ngawari ki te whakakoi, he nui te whakaata o te marama me te taapiri i nga mea rerehua.Ko tana ngoikoretanga ko tona porosity, kia taea ai te wikitoria i tenei ngoikoretanga, ka taea te whakamahi i te whakakikorua whakarewa maha, ko te nickel te paparanga waenga.Ko te Nickel he paninga cathodic mo te rino me te paninga anodic mo te parahi.
Taupānga: I te nuinga o te wā ka whakamahia ki te aukati i te waikura me te whakanui ake i te rerehua, na reira ka whakamahia hei tiaki i nga paninga whakapaipai.Ko te whakakikorua o te nikel i runga i nga hua parahi he pai mo te aukati i te waikura, engari na te mea he nui ake te utu o te nickel, he maha nga wa e whakamahia ana nga koranu parahi-tini hei whakakapi i te whakakikorua nickel.
Te wa tuku: Oketopa-11-2022