ʻO nā mea e hoʻopili ai i ka mānoanoa o ka paʻi kila zinc ka mea nui: ʻo ke ʻano metala o ka pā kila, ka ʻili o ka ʻili o ke kila kila, ka ʻike a me ka hāʻawi ʻana i nā mea hana silika a me ka phosphorus i loko o ka pā kila, ke koʻikoʻi o loko o ka pā kila, nā ana geometric o ka mea hana hao kila, a me ke kaʻina hana galvanizing wela o ka pā kila. Hoʻokaʻawale ʻia nā kūlana galvanizing wela o ka honua a me Kina i nā ʻāpana e like me ka mānoanoa o ka pā. Pono ka mānoanoa awelika a me ka mānoanoa kūloko o ka uhi zinc i ka mānoanoa kūpono e hoʻoholo ai i ka hana anti-corrosion o ka uhi zinc. ʻOkoʻa ka manawa e pono ai e hoʻokō i ka equilibrium thermal a me ka zinc-iron hoʻololi equilibrium no nā mea hana paʻi kila o nā mānoanoa like ʻole, a ʻokoʻa hoʻi ka mānoanoa o ka uhi i hana ʻia. ʻO ka mānoanoa o ka uhi ʻana i ka maʻamau he waiwai ʻike hana ʻenehana e pili ana i ka mīkini galvanizing i ʻōlelo ʻia ma luna, a ʻo ka mānoanoa kūloko kahi waiwai ʻike e pono ai e noʻonoʻo i ka hāʻawi ʻole ʻana o ka mānoanoa o ka zinc coating a me nā koi no ka pale ʻana i ka corrosion o ka uhi. No laila,ʻo ka ISO standard, ka American ASTM standard, ka Japanese JS standard a me ka Chinese standard he mau koi likeʻole no ka mānoanoa o ka zinc coating, heʻano like. E like me nā ʻōlelo o ka hot-dip galvanizing standard GB B 13912-2002 o ka People's Republic of Kina. ʻO nā kūlana hoʻoheheʻe zinc no nā mea hoʻoheheʻe kila wela wela e like me kēia: No nā mea hoʻoheheʻe kila wela me ka mānoanoa ʻoi aku ka nui a i ʻole like me 6mm, ʻoi aku ka nui o ka mānoanoa o ka zinc ma luna o ka 85 microns, a ʻoi aku ka mānoanoa kūloko ma mua o 70 microns. No ka pumehana kila me ka mānoanoa ma lalo o 6mm a ʻoi aku ka nui ma mua o 3mm, ʻoi aku ka nui o ka mānoanoa zinc ma luna o ka 70 microns, a ʻoi aku ka mānoanoa kūloko ma mua o 55 microns. No nā mānoanoa kila me ka mānoanoa ma lalo o 3mm a ʻoi aku ka nui ma mua o 1.5mm, ʻoi aku ka nui o ka mānoanoa o ka zinc ma luna o ka 55 microns, a ʻoi aku ka mānoanoa kūloko ma mua o 45 microns.
ʻO ke kuleana a me ka mana o ka mānoanoa uhi galvanizing wela
ʻO ka mānoanoa o ka uhi wela wela ma luna o ka pahu kila e hoʻoholo ai i ka hana anti-corrosion o ka pahu kila. Hiki i nā mea hoʻohana ke koho i ka mānoanoa o ka zinc coating i ʻoi aku ka kiʻekiʻe a i ʻole ka haʻahaʻa ma mua o ka maʻamau. He mea paʻakikī ka loaʻa ʻana o kahi uhi ʻoi aku ka mānoanoa i ka hana ʻoihana o nā ʻili kila lahilahi me ka ʻili malū ma lalo o 3mm. Eia kekahi, ʻo ka mānoanoa o ka zinc coating i kūlike ʻole i ka mānoanoa o ka pā kila kila e hoʻopili i ka ikaika paʻa ma waena o ka uhi a me ka substrate a me ke ʻano o ka hiʻohiʻona o ka uhi. ʻO ka mānoanoa nui o ke ao hoʻopulapula e ʻike ʻia ka uhi ʻana i ke ʻano ʻino a maʻalahi ke ʻili. ʻAʻole hiki i ka pahu kila i hoʻopaʻa ʻia ke kūpaʻa i ka hui ʻana i ka wā o ka lawe ʻana a me ke kau ʻana. Inā ʻoi aku ka nui o nā mea hana silika a me ka phosphorus i loko o nā mea maka o ke kila kila, he paʻakikī hoʻi ka loaʻa ʻana o kahi uhi thinner i ka hana ʻoihana. ʻO kēia no ka mea e pili ana ka ʻike silika i loko o ke kila i ke ʻano ulu o ka papa huila ma waena o ka zinc a me ka hao, kahi e ulu wikiwiki ai ka (, phase zinc-iron alloy layer a (i ka ʻili o ka uhi ʻana, ka hopena i kahi ʻili ʻāʻī a ʻeleʻele, e hana ana i kahi uhi hina me ka hoʻopili maikaʻi ʻole. ʻO ka mānoanoa i hōʻike ʻia i ka maʻamau galvanizing hot-dip no ka hoʻoheheʻe kila he waiwai empirical i hana ʻia ma hope o ka nui o nā hoʻokolohua, e noʻonoʻo ana i nā kumu like ʻole a me nā koi, a ʻoi aku ke kūpono.
Ka manawa hoʻouna: ʻAukake-19-2024