Hoʻomohala ʻana i ka pā kila i uhi ʻia i ka kala

I ka hopena o nā makahiki 1980, ua hoʻomaka ʻo Kina e kūkulu i nā ʻāpana kala.ʻO ka hapa nui o kēia mau ʻāpana i kūkulu ʻia i loko o nā mea kanu hao a me ke kila a me nā ʻoihana hui, a ua lawe ʻia nā mea hana kaʻina kala kala mai waho mai.I ka makahiki 2005, ua hiki i ka 1.73 miliona tons ka papa i uhi ʻia i loko o ka ʻāina, i ka hopena o ka overcapacity.Baosteel, Anshan hao a me ke kila, Benxi hao a me ke kila, Shougang, Tangshan hao a me ke kila, Jinan hao a me kila, Kunming hao a me kila, Handan hao a me kila, Wuhan hao a me kila, Panzhihua hao a me ke kila a me na moku aupuni nui. a he kiʻekiʻe ka mana o nā ʻoihana kila a me ka pae lako.Ua kūkulu hou lākou i nā ʻāpana kala me ka ʻenehana haole a me ka mana hana makahiki o 120000 ~ 170000 tons.

I ka manawa like, ʻo ka hana ʻana o nā papa kala kala i hoʻopukapuka ʻia e nā ʻoihana pilikino he nui e hoʻohana i nā lako hale, me ka liʻiliʻi o ka hana ʻana, akā wikiwiki ka hoʻomaka ʻana a me ka haʻahaʻa haʻahaʻa.ʻO nā huahana ka mea nui no nā mea kūkulu hale a me nā ʻoihana hoʻonaninani.Eia kekahi, ua pae mai ke kapikala haole a me ke kapikala o Taiwan no ke kūkulu ʻana i nā ʻāpana kala, akā ʻo ka hapa nui o lākou aia ma nā wahi kahakai.Mai ka makahiki 1999, me ka pōmaikaʻi o ka mākeke kala kala, ʻo ka hana ʻana a me ka hoʻohana ʻana i ka pā kala kala i komo i kahi manawa o ka ulu wikiwiki.Mai ka makahiki 2000 a hiki i ka makahiki 2004, ua hoʻonui ʻia ka hana ma ka awelika o 39.0%.Ma ka makahiki 2005, ua ʻoi aku ka nui o ka hana ʻana o nā papa i uhi ʻia ma mua o 8 miliona mau tons / makahiki, a ua kūkulu ʻia kekahi mau ʻāpana kala i hoʻopaʻa ʻia, me ka nui o ka nui o ka hana ʻana ma mua o 9 miliona mau tons / makahiki.

Nā pilikia e kū nei: 1 ʻOiai ka nui o ka hana ʻana o ka pā wela wela no nā mea kūkulu hale, ʻaʻohe hemahema o nā papa kumu maikaʻi e like me ka puʻupuʻu kila wela wela me ka pua zinc a me ka zinc alloy coated steel coil;2. ʻAʻole hiki i nā ʻano like ʻole a me ka maikaʻi o nā uhi home ke hoʻokō pono i ka noi.ʻO ke kumukūʻai kiʻekiʻe o nā uhi i lawe ʻia e hōʻemi i ka hoʻokūkū.ʻO ke kiʻi ʻoniʻoni i koi ʻia no ka pā kala kiʻiʻoniʻoni pono e lawe ʻia mai, a aia ka nele o ka papa kala kiʻekiʻe me ka uhi mānoanoa, hana, ikaika kiʻekiʻe a me nā kala waiwai;3. ʻAʻole i hoʻohālikelike ʻia nā huahana, e hopena i ka pau ʻana o nā kumuwaiwai.Nui nā ʻāpana haʻahaʻa haʻahaʻa me ka hiki ke emi ma mua o 40000 tons / makahiki, a aia nā pilikia i ka maikaʻi o ka huahana a me ka mālama ʻana i nā kumuwaiwai kūlohelohe;4. He nui loa nā ʻāpana kala hou ma Kina, i ʻoi aku ma mua o ka makemake o ka mākeke, e hopena i ka haʻahaʻa haʻahaʻa o nā ʻāpana kala a me ka pani ʻana.

Ke au hoʻomohala:

ʻO ka mea mua, pono ka hoʻohana ʻana i ka substrate kiʻekiʻe kiʻekiʻe a kiʻekiʻe aʻe nā koi no ka ʻili, ke ʻano a me ka pololei o ke ana o ka substrate.No ka hoʻohana ʻana i waho, e like me ka pua zinc liʻiliʻi paʻa puʻupuʻu puʻupuʻu kila a me ka pua non zinc palahalaha wela wela hoʻoheheʻe ʻia, ʻo zinc alloy hot-dip galvanized coil piʻi i ka manawa;No ka hoʻohana ʻana i loko, e like me ka wili kila galvanized, uhi ʻia i ka pepa anuanu a me ka pahu alumini.

ʻO ka lua, hoʻomaikaʻi i ke kaʻina hana pretreatment a me ka wai pretreatment.Me ka liʻiliʻi o nā lako a me nā kumu kūʻai haʻahaʻa, ua lilo ia i ke kaʻina hana nui, a hoʻomaikaʻi mau i ka kūpaʻa, ka pale ʻana i ka corrosion a me ka hana hoʻomalu kūlohelohe o ka wai pretreatment.

ʻO ke kolu, ʻo ka hoʻomohala ʻana o nā uhi hou e hoʻomaikaʻi i ka polyester maʻamau, polyvinylidene fluoride (PVDF) a me ka plastic sol e loaʻa ai ka super color reproducibility, UV resistance, sulfur dioxide resistance a me ka corrosion resistance;E hoʻomohala i nā pale hana e like me ke kūpaʻa pollution a me ka lawe ʻana i ka wela.

ʻO ka hā, ʻoi aku ka maikaʻi o ka lako o ka ʻāpana.No ka laʻana, hoʻohana ʻia nā mīkini wiliwī hou, nā mīkini pani ʻōwili hou, nā kapuahi hoʻōla hoʻomaikaʻi ʻia, a me nā mea hana ʻakomi holomua.

ʻO ka lima, ua lilo ka ʻenehana hana embossing i mea hoʻomohala ma muli o kona kumukūʻai haʻahaʻa, nani ke ʻano, ʻekolu-dimensional manaʻo a me ka ikaika kiʻekiʻe.

ʻO ke ono, e hoʻolohe i ka diversification, functionalization a me ka kiʻekiʻe-papa o nā huahana, e like me ka hohonu kaha kiʻi kala uhi papa, "grapefruit ili" waihoʻoluʻu papa papa, anti-static kala uhi papa, pollution-kū pale waihoʻoluʻu papa, kiʻekiʻe wela absorption kala. papa uhi, etc.

ʻO ke ʻano o kēia manawa ma Kina, ʻo ia ka mea e uku nui ana nā mea hana papa kala kala i ka maikaʻi o nā substrates i hoʻohana ʻia i kā lākou hana ponoʻī ʻana i nā papa kala i uhi ʻia, a loaʻa iā lākou nā koi kiʻekiʻe a kiʻekiʻe aʻe no kā lākou hana hana ponoʻī. he hāʻawi maikaʻi loa i ka hana hana.Eia kekahi, ʻo nā mea hana no ka hana ʻana i nā papa kala i uhi ʻia he ʻano kiʻekiʻe nō hoʻi, ka mea e hoʻonui ai i nā papa kala i uhi ʻia i ka hana ʻana, ʻaʻole e mālama wale i ke kumukūʻai, akā mālama pū kekahi i ka nui o ka manpower. ʻoi aku ka nui o nā mea hana papa i uhi ʻia, a ʻoi aku ka ikaika o ka hoʻokūkū mākeke.ʻO ka hoʻomaikaʻi ʻana i ka maikaʻi o ka huahana a me ka hōʻemi ʻana i ke kumu kūʻai huahana ua lilo i mea maʻamau o nā mea hana papa kala.Ua lilo nā huahana papa kala i ʻokoʻa.Hiki ke pāʻani i nā ʻano hana like ʻole nā ​​papa kala like ʻole, kahi e hoʻohauʻoli nui ai ka mākeke papa kala.