Nā kumu o ka ʻinoʻino ʻana o ke kila kila

Nā kumu o ka ʻinoʻino ʻana o ke kila kila

1 Ka mālama pono ʻole, ka lawe ʻana a me ka hāpai ʻana
I ka wā o ka mālama ʻana, ka lawe ʻana a me ka hoʻokiʻekiʻe ʻana, e hoʻopōʻino ʻia ka pahu kila kila ke hālāwai ʻo ia i nā ʻōpala mai nā mea paʻakikī, pili me nā kila like ʻole, lepo, ʻaila, ʻōpala a me nā mea haumia ʻē aʻe. Hiki ke hoʻohaumia maʻalahi i ka ʻili o ke kila kila a hiki i ka hui ʻana i ke kila kila me nā mea ʻē aʻe a me nā mea hana pono ʻole no ka mālama ʻana. ʻO ka hoʻohana pono ʻole ʻana i nā mea hana kaʻa a me nā mea paʻa hiki ke hoʻoulu i nā puʻupuʻu a me nā ʻōpala ma ka ʻili o ke kila kila, a laila e luku ai i ka kiʻiʻoniʻoni chromium ʻili o ke kila kila a me ka hana ʻino electrochemical. ʻO ka hoʻohana pono ʻole ʻana i nā hoists a me nā chucks a me ke kaʻina hana kūpono ʻole hiki ke hoʻopau ʻia ke kiʻi ʻoniʻoni chromium ma luna o ke kila kila kila, e hoʻoneʻe ai i ka electrochemical corrosion.
2 Ka wehe ʻana a me ka hana ʻana i nā mea maka
Pono e hana ʻia nā mea pā kila i ʻōwili ʻia i kila palahalaha no ka hoʻohana ʻana ma o ka wehe ʻana a me ka ʻoki ʻana. Ma ka hana i luna, ua luku ʻia ka kiʻiʻoniʻoni chromium-rich oxide passivation ma ka ʻili o ke kila kila ma muli o ka ʻoki ʻana, ka hoʻopaʻa ʻana, ka hoʻomehana ʻana, ka extrusion mold, ka paʻakikī paʻakikī, a me nā mea ʻē aʻe. Ma lalo o nā kūlana maʻamau, ʻo ka ʻili i hōʻike ʻia o ka substrate kila ma hope o ka luku ʻia ʻana o ke kiʻi passivation e hana me ka lewa e hoʻoponopono pono iā ia iho, hana hou i ka chromium-rich oxide passivation film, a hoʻomau i ka pale ʻana i ka substrate. Eia naʻe, inā ʻaʻole maʻemaʻe ka ʻili o ke kila kila, e hoʻokē ʻia ka ʻino o ke kila kila. ʻO ka ʻoki ʻana a me ka hoʻomehana ʻana i ka wā o ka ʻoki ʻana a me ka hoʻopili ʻana, ka hoʻomehana ʻana, ka extrusion mold, ka paʻakikī paʻakikī i ka wā o ke kaʻina hana e alakaʻi ai i nā loli like ʻole o ka hale a hoʻoulu i ka electrochemical corrosion.
3 Hoʻokomo wela
I ka wā o ka hana ʻana o ke kila kila kila, ke piʻi ka mahana i 500 ~ 800 ℃, e kahe ana ka chromium carbide i loko o ke kila kila ma ka palena o ka palaoa, a e kū mai ka corrosion intergranular kokoke i ka palena o ka palaoa ma muli o ka emi ʻana o ka ʻike chromium. ʻO ka conductivity thermal o ke kila kila austenitic ma kahi o 1/3 o ke kila kalapona. ʻAʻole hiki ke hoʻopuehu koke ʻia ka wela i hana ʻia i ka wā welding, a ua hōʻiliʻili ʻia ka nui o ka wela ma ka wahi weld e hoʻonui ai i ka mahana, e hopena i ka corrosion intergranular o ka weld kila kila a me nā wahi a puni. Eia kekahi, ua pōʻino ka papa o ka ʻili o ka ʻili, he mea maʻalahi ia e hana i ka corrosion electrochemical. No laila, hiki i ka weld wahi ke corrosion. Ma hope o ka pau ʻana o ka hana kuʻi ʻana, pono ia e poli i ke ʻano o ka weld e wehe i ka lehu ʻeleʻele, spatter, welding slag a me nā mea ʻē aʻe e pili ana i ka corrosion, a hana ʻia ka pickling a me ka mālama passivation ma ka weld arc i hōʻike ʻia.
4. ʻO ke koho kūponoʻole o nā mea hana a me ke kaʻina hana i ka wā o ka hanaʻana
Ma ke kaʻina hana maoli, hiki i ke koho kūpono ʻole o kekahi mau mea hana a me ke kaʻina hana ke alakaʻi i ka corrosion. No ka laʻana, hiki i ka hoʻopau piha ʻana o ka passivation i ka wā weld passivation hiki ke alakaʻi i ka ʻino kemika. Ua koho ʻia nā mea hana hewa i ka hoʻomaʻemaʻe ʻana i ka slag a me ka spatter ma hope o ke kuʻi ʻana, e hopena i ka hoʻomaʻemaʻe ʻole ʻana a i ʻole ka pōʻino i ka mea makua. ʻO ka wili kūpono ʻole o ka waihoʻoluʻu hoʻoneʻe e hoʻopau i ka ʻili o ka oxide a i ʻole ka hoʻopili ʻana o nā mea ʻeleʻele, hiki ke alakaʻi i ka ʻino electrochemical.