ʻO ka mea maʻamau, kapa ʻia nā pihi metala i ka ʻōpala a i ʻole ka ʻōpala ma muli o ka corrosion a i ʻole discoloration i hoʻokumu ʻia e ka oxygen, moisture a me nā mea haumia ʻē aʻe i ka lewa.Ma hope o ka ʻōpala ʻana o nā huahana metala o nā mea hana pihi plastic, e hoʻopilikia nā mea māmā i ka maikaʻi o ka helehelena, a ʻo nā mea koʻikoʻi e hoʻopilikia i ka hoʻohana ʻana a hiki i ke kumu o ka ʻoki ʻana.No laila, pono e mālama pono ʻia nā huahana metala i ka wā e mālama ai, a pono e uku ʻia i ka anti-rust.Piko keleawe gula
ʻO nā kumu nui e ʻeleʻele ai nā pihi metala:
(1) ʻO ka haʻahaʻa pili o ka lewa Ma ka mahana like, ua kapa ʻia ka pākēneka o ka mahu wai o ka lewa a me kona ʻano mahu wai kuʻuna.Ma lalo o kekahi haʻahaʻa pili, he liʻiliʻi loa ka nui o ka corrosion metala, akā ma luna o kēia haʻahaʻa pili, piʻi nui ka nui o ka corrosion.Ua kapa ʻia kēia haʻahaʻa haʻahaʻa pili.ʻO ka haʻahaʻa koʻikoʻi o nā metala he nui ma waena o 50% a me 80%, a ʻo ke kila ma kahi o 75%.ʻO ka haʻahaʻa pili o ka lewa ka mea nui loa i ka ʻino metala.Ke kiʻekiʻe ka haʻahaʻa o ka lewa ma mua o ka haʻahaʻa koʻikoʻi, e ʻike ʻia kahi kiʻiʻoniʻoni wai a i ʻole nā kulu wai ma ka ʻili metala.Inā hoʻoheheʻe ʻia nā mea ʻino i loko o ka lewa i loko o ke kiʻiʻoniʻoni wai a i ʻole nā kulu wai, e lilo ia i electrolyte, kahi e hoʻonui ai i ka corrosion.Piko keleawe gula
(2) Ea wela a me ka haʻahaʻa ʻO ka pilina ma waena o ka ea a me ka haʻahaʻa e pili ana i ka ʻino o nā pihi metala.Loaʻa kēia mau ʻano kumu nui: ʻo ka mua, piʻi ka ʻike o ka wai o ka lewa me ka piʻi ʻana o ka mahana;ʻO ka lua, ʻo ka wela kiʻekiʻe e hoʻoikaika i ka hoʻoikaika ʻana o ka corrosion, ʻoi aku ka nui ma nā wahi humid, ʻoi aku ka kiʻekiʻe o ka mahana, ʻoi aku ka wikiwiki o ka corrosion rate.Ke haʻahaʻa ka haʻahaʻa pili, ʻaʻole maopopo ka hopena o ka wela ma luna o ka corrosion, akā inā ʻoi aku ka nui o ka haʻahaʻa pili ma mua o ka haʻahaʻa koʻikoʻi, piʻi nui ka nui o ka corrosion me ka piʻi ʻana o ka mahana.Eia kekahi, inā he ʻokoʻa ka wela ma waena o ka lewa a me ka metala, e hoʻokumu ʻia ka wai condensed ma ka ʻili metala me ka haʻahaʻa haʻahaʻa, ʻo ia hoʻi ka mea e ʻōpala ai ka metala.Piko keleawe gula
(3) Hoʻohaumia nā kinoea ʻino i nā kinoea ʻino i ka lewa, a ʻo ka sulfur dioxide ka hopena nui loa i ka ʻino metala, ʻoi aku ka nui o ke keleawe a me kāna mau ʻāpana.ʻO ka sulfur dioxide i loko o ka lewa ka mea nui mai ka puhi ʻana o ka lanahu.I ka manawa like, he hopena corrosive ka huahana combustion carbon dioxide.Hoʻohui ʻia nā kinoea ʻino i ka lewa a puni ka mea kanu.E like me ka hydrogen sulfide, ammonia gas, hydrochloric acid gas, a me nā mea ʻē aʻe nā mea a pau e hoʻoikaika i ka ʻino metala.
(4) ʻO nā kumu ʻē aʻe He nui ka lepo o ka lewa, e like me ka smog, ka lehu lanahu, ka chloride a me nā waikawa ʻē aʻe, ka alkali, nā mea paʻakai, a me nā mea ʻē aʻe, ʻo kekahi o ia mau mea he corrosive i loko o lākou iho, a i ʻole condensation nuclei o nā kulu wai. also kumu ʻino.No ka laʻana, manaʻo ʻia ʻo chloride ka "ʻenemi make" o nā metala ʻino.Piko keleawe gula
Ka manawa hoʻouna: Mei-10-2023