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He aha ke kumu anticorrosion o Dacromet coating?

Kau ʻia ma 2018-05-07Me ka hoʻomohala wikiwiki ʻana o ka ʻenehana hana hou, ua hoʻohana hou ʻia nā huahana kiʻekiʻe.Hāʻawi ka ʻenehana hana i ka ʻoluʻolu i ko mākou ola.Pono e hoʻomaopopo ʻia ʻo Dacromet e nā poʻe he nui.

 

Loaʻa iā Dacromet nā noi i nā ʻoihana he nui.Ua hui pū ʻia ka ʻenehana Dacromet me ka nui o nā uhi.Hiki iā ia ke pāʻani i kahi hopena anti-corrosion maikaʻi loa ma ka ʻili o ka huahana.No laila no ke aha e hiki ai ke mālama i nā mea?

 

ʻO ka uhi Dacromet, ʻo ka hiʻohiʻona he matt kala-hina, i haku ʻia me nā ʻāpana metala maikaʻi loa, ka alumini a me nā mea chromate.Ma hope o ka hoʻoheheʻe ʻia ʻana o ka mea hana a pana ʻia, ua uhi ʻia ʻo Dacromet.

 

ʻO ka wai ʻo Dacromet kahi ʻano wai hoʻōla wai.Hoʻopili ʻia nā ʻāpana metala i loko o kahi hopena lapaʻau e pili ana i ka wai, a laila hoʻopaʻa ʻia i loko o ka umu ahi a kālua ʻia ma kahi o 300 ° C. e hana i kahi uhi inorganic o ka zinc, aluminika a me ka chromium.Ke ho'ōlaʻia, hoʻololi ka makū i loko o ke kiʻiʻoniʻoni, organik (cellulose) a me nā mea'ē aʻe, a me ka waiwai oxidizing o ka paʻakai chromium kiʻekiʻe i loko o ka waiʻona makuahine o Dacromet e loaʻa ai ka waiwai maikaʻiʻole o ka electrode.

 

Ma hope o ka slurry pahu alumini a me ka matrix hao, ua hoʻokumu ʻia kahi hui paʻakai chromium o Fe, Zn, a me Al.Ma muli o ka loaʻa ʻana o ka papa kiʻiʻoniʻoni ma hope o ka substrate, ʻoi loa ka paʻa o ka anti-corrosion layer.Ma lalo o ka pōʻino, e hoʻokumu ʻia ka uhi ʻana i nā ʻaʻa kumu he nui, ʻo ia hoʻi, ʻoi aku ka maikaʻi o nā paʻakai Al a me Zn maikaʻi ʻole e ʻoki mua ʻia a hiki i ka hiki ke hoʻopau i ka substrate ma hope o ka pau ʻana.


Ka manawa hoʻouna: Jan-13-2022