Nūhou

Nui nā poʻe hoʻomaka e hāʻule i ka pahele i ke kūʻai ʻana i nā ʻōwili kala i uhi ʻia no ka mea ʻaʻole maopopo lākou i kā lākou mea. No laila, he aha ka mea maikaʻi no nā ʻōwili kala i uhi ʻia?
ʻO ka substrate no nā coils i uhi ʻia i ka waihoʻoluʻu hiki ke lilo i ʻōwili anuanu a i ʻole ke kila electroplated wela. ʻOiai he hopena anti-corrosion maikaʻi ka uhi ʻana o ka mea hoʻoheheʻe kala, aia kekahi mau wahi liʻiliʻi i loko o ka uhi organik, hiki ke ʻae i ka ea a me ka makū e komo a hoʻoulu i ka pala o ka substrate. No laila, ʻoi aku ka pōkole o ke ola lawelawe ʻana o nā wili kala kala i hana ʻia mai nā substrates i uhi ʻole ʻia a hiki ke hoʻopuehu a me ka uhi ʻana i ka peeling ma hope o ke kālai ʻia ʻana. ʻO ka substrate o ka wili kila i uhi ʻia i ke kala ʻo ia ka nui o ka pā kila a i ʻole nā ​​mea hao hao no ka ʻenehana pā kila. Ma kekahi mau laina hana, ua māhele ʻia ke kaʻina hana o ka uhi kala i ka substrate pre-treatment, nā mea hoʻololi kemika (non organic metal coatings), organic non-metallic coatings, a me nā kaʻina hana hope.

1、 Substrate pre-treatment: Inā ʻaʻole mākou he hui hiki ke komo pololei i ke kaʻina o ka uhi kala o ke kaiāulu ma hope o ka hana ʻana, hiki i nā papa kila galvanized i hoʻohana ʻia e like me nā substrates e ʻike mau i ka ʻōpala (keʻokeʻo keʻokeʻo), ka lepo, a me nā pollution ʻē aʻe i ka wā o ka lawe ʻana a me ka hoʻomohala ʻana. . Inā ʻaʻole hiki ke wehe ʻia kēia mau mea, e hoʻopilikia ʻia ka maikaʻi o ka pena. ʻO ka maikaʻi o nā ʻōwili kala i hoʻopau ʻia a me ka hana ʻenehana kino a me ke kemika o nā haumāna āpau e pili kokoke ana i ka mālama mua ʻana. Eia kekahi, i ka hana galvanizing, i mea e pale ai i ka ʻōpala a me ka ʻaila, hoʻoneʻe ʻia kēia mau ʻaila ma mua o ka hana ʻana o ka uhi kala. ʻO ke ʻano hoʻomaʻamaʻa maʻamau i hoʻohana ʻia i kēia manawa ʻo ke ʻano hoʻonā alkaline degreasing.
2、 ʻElua mau hana ke kiʻi hoʻololi kemika
ʻO kekahi o ka hoʻomaikaʻi hou ʻana i ka hiki ke pale aku i ka rust,
ʻO ka lua, ʻo ia ka hoʻomaikaʻi ʻana i ka hoʻopili ʻana ma waena o ka substrate a me ka uhi ʻana, a hoʻomaikaʻi i ka hana o ka uhi ʻana o ka substrate.

ʻEkolu mau ʻanuʻu maʻamau:
ʻO kekahi ka phosphating, ka mea i hana mua i ka nui o nā kristal ma ka ʻili metala, a laila hana i kahi papa o ka phosphate film ma ka ʻili metala me kahi hopena paʻakai phosphate;
ʻO ka lua ka passivation a me ka sila. Aia kekahi mau pores i ka kiʻiʻoniʻoni phosphate, i hana ʻia me nā chromates e hana i kahi kiʻiʻoniʻoni pale. ʻO ke kolu, holoi me ka wai maʻemaʻe a wehe i ka hopena passivation me ka wai desalinated a deionized paha.
3、 Hoʻokaʻawale nui ʻia nā uhi kūlohelohe i ka primer a me ka topcoat. ʻAʻole kiʻekiʻe nā koi kumu mua a hiki ke hoʻohana ʻia i ke ʻano maʻemaʻe kala. Eia nō naʻe, i mea e hoʻomaikaʻi ai i ka palekana ʻike hana, hoʻohana maʻamau nā ʻoihana Kina i ke ʻano o ka uhi ʻana i ke kala no ka primer a me ka topcoat.
ʻO ke kaʻina hana hoʻopili hope: ʻO ke kaʻina hana hoʻopaʻa pou e pili ana i ka paʻi ʻana, embossing, peelable pale kiʻiʻoniʻoni, hoʻopaʻa ʻana, a me nā mea ʻē aʻe, e hoʻomaikaʻi ai i nā mea hoʻonaninani a me ka pale o ka papa i uhi ʻia.