Kau ʻia ma 2018-11-12ʻO ka uhi ʻana o Dacromet, ʻike ʻia hoʻi ʻo ka zinc flake coating, ʻoi aku ka maikaʻi ʻaʻole hiki ke hoʻokō ʻia ka mea hope i hoʻohālikelike ʻia me nā ʻenehana electro galvanized a me nā ʻenehana galvanizing wela.Loaʻa i ka Zinc flake coating nā mea maikaʻi aʻe:
#1.Kūʻē kūʻē i ka corrosion
ʻO ka pale electrochemical hoʻomalu o ka zinc, ka hopena pale o ka zinc/aluminium sheets a me ka hoʻoponopono ponoʻī ʻana o ka chromate e hana i ka uhi ʻana o Dacromet i kūpaʻa loa i ka corrosion ke hoʻāʻo ʻia ka uhi Dacromet i ka paʻakai paʻakai kūʻokoʻa.Pono ia ma kahi o 100 mau hola e etch i ka uhi 1um, ʻo ia ka 7-10 mau manawa ʻoi aku ka maikaʻi ma mua o ka mālama galvanizing kuʻuna.ʻO ka hoʻāʻo ʻana i ka paʻakai paʻakai kūʻokoʻa hiki ke lōʻihi ma mua o 1000 mau hola (ka uhi ʻia me ka mānoanoa o 8um a ʻoi aku paha), a ʻoi aku ka kiʻekiʻe o kekahi, ʻaʻole hiki kēia me nā papa galvanized a wela.
#2.Kūleʻa wela maikaʻi
No ka mea, ʻaʻohe wai aniani o ka Dakoro-coated chromic acid polymer a he kiʻekiʻe ka helu heheʻe o ka pepa alumini/zinc, ʻoi aku ka maikaʻi o ka pale ʻana i ka corrosion kiʻekiʻe.ʻO ka uhi ʻana o Dacromet i ka wela wela o 300 ° C. Hiki ke hoʻohana mau ʻia no ka manawa lōʻihi ma 250 ° C. ʻAʻole i hoʻopilikia ʻia kona kūpaʻa corrosion, a ua luku ʻia ke kiʻi passivation ma ka ʻili o ka papa zinc electroplated a puni. 70 ° C, a ʻo ka pale ʻana i ka corrosion he emi loa.
#3.ʻAʻohe hydrogen brittleness
I ka wā o ka hoʻomaʻamaʻa ʻenehana o Dacromet, ʻaʻohe wai holoi, electrodeposition, uila de-oiling, a me nā mea ʻē aʻe, ʻaʻohe hopena electrochemical o ka hydrogen evolution i hoʻokumu ʻia e ke kaʻina hana electro-galvanizing, no laila ʻaʻole e hoʻoiho ka mea i ka hydrogen embrittlement.No laila, kūpono loa ia no ka lawelawe ʻana i nā ʻāpana elastic a me nā mea hana ikaika kiʻekiʻe.
#4.ʻO ka hiki ke hoʻopili maikaʻi
ʻO ke ʻano o ka uhi ʻana o Dacromet he kala-hina me ka hoʻopili maikaʻi ʻana i ka substrate a me nā ʻāpana like ʻole.Hiki ke hoʻohana ʻia ma ke ʻano he papa luna a i ʻole he kumu mua no nā ʻāpana like ʻole.Hiki mai nā hopena electrochemical ma waena o nā metala ma muli o nā ʻokoʻa.No nā papa galvanized, ʻo nā ʻāpana hao a me nā papa alumini ka pale electrochemical a hoʻemi nui i ka pale ʻana i ka corrosion.No ka papa anti-corrosion Dacromet, no ka mea, ua hoʻokumu ʻia ka anti-corrosion ma luna o ka passivation chromic acid a me ka mālama ʻana i ka mālama ʻana i ka ʻāpana zinc scaly, ʻaʻohe ʻino electrochemical i hana ʻia, no laila ua hoʻopau ʻia ka hoʻohana ʻana o Zn i ka corrosion o Al.
#5.ʻO ka permeability maikaʻi loa
Hiki i ka wai lapaʻau Dacromet ke komo i loko o ka hui paʻa o ka mea hana e hana i kahi uhi pale-pale.Inā hoʻohana ʻia ke ʻano o ka electroplating, ʻaʻole i uhi ʻia ka ʻili o loko o ka lālā tubular ma muli o ka hopena pale.Eia nō naʻe, no ka mea ua hoʻohana ʻia ka lāʻau Dacromet e ka uhi ʻana a loaʻa ka permeability maikaʻi, hiki ke hoʻohana ʻia e hoʻomaikaʻi i ka hiki ke pale aku i ka ʻōpala i loko a i waho.
#6.ʻAʻohe pollution
I ka electroplating zinc, aia kahi pilikia o ka hoʻokuʻu ʻana i ka wai i loaʻa ka zinc, alkali, chromic acid, a me nā mea ʻē aʻe, ka mea e hoʻohaumia nui ai.He kiʻekiʻe ka mahana o ka zinc hot dip, a he mea pōʻino ke kino o ke kanaka i hoʻokuʻu ʻia ka uahu zinc a me ka HCL.ʻO ka hapa nui o ka hana zinc wela i kēia manawa pono e lawe ʻia mai nā kūlanakauhale a me nā wahi kuaʻāina.Ua hana ke kaʻina hana ʻo Dacromet i kahi kahua hou o ka pale ʻino metala.No ka mea ʻo ka mālama ʻana ʻo Dacromet he kaʻina hana paʻa, ʻo nā mea i hoʻoheheʻe ʻia i ka wā o ka kuke ʻana he wai ka nui, ʻaʻole loaʻa nā mea ʻino ʻē aʻe i hoʻomalu ʻia, a ʻaʻohe haumia i ke kaiapuni.
No ke aʻo hou aku e pili ana i ka zinc flake coating, e ʻoluʻolu e nānā i kā mākou pūnaewele: www.junhetec.com
Ka manawa hoʻouna: Jan-13-2022