Paipu hao ductilehe ʻano hao-carbon alloy nodular cast iron, me ke ʻano o ka hao, ka hana kila, ke kūpaʻa maikaʻi ʻana i ka corrosion, ka ductility maikaʻi, ka hopena sealing maikaʻi, hoʻokomo maʻalahi, hoʻohana nui ʻia i nā ʻoihana kūloko a me nā ʻoihana mining no ka lako wai, kinoea, aila a pēlā aku. ʻO ka paipu hao ductile ke koho maikaʻi loa o ka paipu wai, a he kiʻekiʻe ke kumu kūʻai.
Hoʻopili ʻia ka pā o loko me ka momi sima. Ke hele ka wai waiwai i nā iona magnesium, e hoʻopuka nā iona magnesium i ka hopena iron spinel a hana i kahi uhi kiʻiʻoniʻoni ma ka sima, e luku ana i ka colloid i loko o ka wai a hiki ke mālama ʻia nā ion calcium a me ka magnesium. No laila, hiki ke ʻike ʻia he waiwai kona e hōʻemi i ka ulu ʻana o ka unahi a ʻaʻole maʻalahi ka paona. ʻOi aku ma mua o ʻelima mau manawa ma mua o ke ola lawelawe o ka paipu maʻamau. Hoʻohana nui ʻia no ka lawe ʻana i ka wai kūloko a me ka lako kinoea.
Ke hoʻohālikelike ʻia me ka paipu maʻamau, mai ka hiʻohiʻona maikaʻi, ʻelua mau pono nui ka paipu hao ductile, ʻo kekahi ka lōʻihi o ka lawelawe ʻana, ʻo ka mea ʻē aʻe ka ikaika o ka corrosion. I ka hōʻuluʻulu ʻana, ʻo ia hoʻi, ma lalo o ka hoʻonohonoho pono ʻana a me ke kūkulu ʻana i ka maikaʻi o ka wai a me nā kūlana lawelawe, hiki i ke ola lawelawe o ka paipu hao ductile hiki ke hiki i 50 mau makahiki, a ua maʻalahi ka mālama ʻana. A laila aia ka pilikia kumukūʻai, nui nā kumu e noʻonoʻo ai.
ʻO ka paipu hao Ductile he ʻano paipu palekana a hilinaʻi hoʻi i ka lako wai a me ka ʻōnaehana hoʻoheheʻe o nā kūlanakauhale āpau. He kūpono loa ka paipu hao nodular no ka hoʻohana ʻana i ka kuʻekuʻe lima, ke kī a me ka pili flange pili. Ke hiki mai ke kauwela, ua maʻalahi ka ili o ka paipu hao nodular e hana i ka lepo mānoanoa a me ka ʻeleʻele ʻeleʻele ʻeleʻele ʻeleʻele, kahi e hoʻonui ai i ka paʻakikī o ka hoʻomaʻemaʻe ʻana i ka paipu, a hoʻoulu i ka lehu a me ka scaling o ka paipu.
Ka manawa hoʻouna: Mar-01-2023