ʻO ka corrosion ka maʻi hope o ke kaula uwea kila, ʻoi aku ka maikaʻi ma ka moana a me ke kahakai. No nā makahiki he nui, ʻo Hot -Dipped Galvanization (HDG) ka lāʻau lapaʻau wale nō. Eia nō naʻe, ʻo ka puka ʻana mai o ka Zinc -Aluminium (Zn-Al) i hoʻohuihui ʻia, e like me Galfan, ua hoʻokomo i kahi ʻano hou i ka pale electrochemical.

ʻO ke Kemika o ka palekana:

Ke hilinaʻi nei ʻo HDG kuʻuna i kahi papa mōhai o Zinc maʻemaʻe. Ke hoʻopau ʻia kēia papa e ka oxidation, ʻike ʻia ke kumu kila. Zn-Al (e like me 95% Zn a me 5% Al) e hana i ka pale maalea. ʻO ka hoʻohui ʻana o Aluminum e hana i kahi 'passive film' o ka alumini oxide, kahi e hoʻolohi nui ai i ka nui o ka corrosion.

Nā hōʻike hoʻoheheʻe paʻakai:

I loko o nā ho'āʻo paʻakai paʻakai maʻamau (ASTM B117), ʻoi aku ka lōʻihi o nā uwea Zn{1}}Al i nā uea HDG ma kahi helu o 2 a 3. Eia kekahi, ʻoi aku ka ductile o ka uhi ʻana, ʻo ia hoʻi ke kūʻē nei i ka micro-fllaking i hana ʻia i ka wā o ke kiʻekiʻe-koʻikoʻi piʻo pōʻai o ke kaula.

ʻO ka ʻōlelo hoʻoholo SOLITE:

No ka hoʻopaʻa ʻana i waho a me nā cranes awa, ʻo ka hoʻololi ʻana iā Zn-Al alloy coatings e hōʻike ana i ka neʻe ʻana i ka mālama waiwai. ʻOiai he 15% ka uku waiwai, ʻo ka hoʻonui ʻia ʻana o ke ola o ka lawelawe ʻana he 200%, ʻo ia ke kumu kūʻai -ʻoi loa o ka hopena anti-corrosion solution i loko o ka metallurgy hou. Hāʻawi mākou i nā waihona paʻakai -paʻakai paʻakai no kēlā me kēia hoʻouna ʻana-ka moana.