I whakairihia ki runga 2016-12-22E mohiotia ana ko te Dacromet he otinga wai marara kei roto ko te tawerewere konutea, te tawerewere konumohe me nga taapiri.Ko nga mea mahi i muri i te toua me te rehu, te rongoa 20min i te 80 ℃ i roto i te oumu i mua i te whakamahana, 30min i te 300 ℃ i te oumu whakamahana.Hanga hexavalent chromium he waipiro adipic me te whakaheke pararopi ki te wai o te paninga dacromet e kore e memeha ki te wai.
Me tohu ko te whakahekenga o te chromium hexavalent ki roto i te chromium trivalent me te chromium oxidation trivalent ki roto i te hexavalent chromium he tukanga whakahoki.No reira, i roto i te mea mahi kua whakahiatohia, ka mau tonu te chromium trivalent ki te hexavalent chromium, a ko te hexavalent chromium he mate mate tangata, no reira ka pa te kino ki te hauora.Na reira, ko te otinga whakakikorua chromium tuku iho ehara i te tino kore tukunga, i te mea ko te noho o te hexavalent chromium, ka whai paanga ki te taiao me nga taangata, na reira, he mea nui te rongonui o te Dacromet kore utu.
I te kaha tonu o nga mahi tiaki taiao a motu, ka nui noa atu nga kaihanga miihini e hiahia ana ki nga waahanga paninga dacromet koreutu.A tae noa ki te whakawhanake i nga paerewa hangarau paninga dacromet kore utu.Pērā i Volkswagen GMW3359, GM7111M etc.
Kei te rapu a Chrome free Dacromet i etahi atu matū hei utu mo te whakangao me te honohono waikawa chromic.Ko te paninga Dacromet koreutu a Chrome te nuinga o te whakamahi i te silicon pararopi, te silicon inorganic, te molybdate, te tungstate, te phosphate hei here, he rite tonu te whakamahi o te kirikiri konutea / konumohe konumohe hei waahanga whakakii matua, a na roto i te raupapa hiri i muri i te maimoatanga, ki te whakatutuki i te tino pai. parenga waikura me te paninga Dacromet kei roto chromium.
Ko te hangarau Chrome Dacromet kore noa he painga o te hangarau chromium-dacromet, engari ano hoki mai i te whakarite peita, te paninga, te kiriata, te paninga ano he tino kore he hexavalent chromium, ko te tikanga pono o te mohiotanga o te kore-paitini matomato kore kino.Mai i te tirohanga taiao, i roto i te whānuitanga o te ao o chrome free Dacromet hei utu o chrome dacromet aronga whānui e kore e huri, ka kawea mai he a tawhio hou o te mara hangarau anti-waikura o te hurihanga taiao.
Wā tuku: Hānuere-13-2022