Kau ʻia ma 2015-11-16Me ka noiʻi hou aku, ʻike ka poʻe i ka ʻenehana dacromet ʻaʻole ʻōmaʻomaʻo loa a me ka ʻenehana pollution-free, aia kekahi mau drawbacks.
1. ʻO ka pilikia o ka pollution: Dacromet solution of chromic acid content he mea kiʻekiʻe loa, ma ke kaʻina hana o ka hoʻomākaukau a me ka hoʻohana ʻana i nā kānaka e hele mai i loko o ka pilina me ia, me ka hoʻohana ʻana i nā ipu a me nā mea hana e hoʻohaumia ʻia, i loko o ke kiʻiʻoniʻoni ma mua o ka kaʻina hana, e inevitably me ka evaporation o ka wai mahu (mai ka chromium plating ike a hiki i), no laila, i ka hoomakaukau ana mai ka hopena e hana i ka uhi kaʻina hana i ole kinoea, wai a me ka paʻa pōʻino mea emissions paʻakikī loa, a me ka hoʻopalekana kaiapuni lako waiwai nui loa. .Eia hou, i ka wā i loaʻa hou ai ka pōʻino o Dacromet, ʻeono chromium i loko o ke kiʻi uhi e hoʻokuʻu.He ikaika loa ka Hexavalent chromium i ka make kanaka a me ka carcinogenicity, i keia manawa he nui na aina o ka hexavalent chromium he palena ko'iko'i ko'iko'i 'o ia a pāpā i ka ho'ohana 'ana.No laila, ua lilo ia i mea pale ʻole iā Dacromet.
2.Higher sintering wela, nui ikehu hoʻohana.
3. ʻAʻole maikaʻi ka paʻakikī o ka ʻili a me ke kūpaʻa ʻana, aia nō nā pilikia galvanic corrosion a me nā metala like ʻole, e pili ana i ka maikaʻi o ka huahana a me ka hana anti-corrosion.
Ka manawa hoʻouna: Jan-13-2022