ʻO ka valve kila inless he ʻano valve i hana ʻia i nā mea kila kila, no ka maikaʻi o kona kūpaʻa ʻana i ka corrosion, ke kiʻekiʻe o ka mahana wela a me ka pale ʻana o ka oxidation, hoʻohana nui ʻia i ka petroleum, chemical, metallurgy, construction a me nā ʻoihana ʻē aʻe. E kālele ana kēia pepa i ke koho waiwai a me nā hiʻohiʻona hana o nā kiwi kila kuhili.
ʻO ka mea mua, koho mea
ʻO nā mea hana o nā kiwi kila he nui austenitic stainless steel, ferritic stainless steel a me austenitic ferritic duplex stainless steel.
1. Austenitic stainless steel: Austenitic stainless steel ka nui o ka chromium, nickel a me nā mea ʻē aʻe, me ka pale ʻana i ka corrosion maikaʻi a me ka ikaika wela kiʻekiʻe, kūpono no ka wela kiʻekiʻe, ke kaomi kiʻekiʻe a me nā kūlana media corrosive. He kila kuhiliʻole austenitic maʻamau 304, 316 a pēlā aku.
2. Ferritic stainless steel: ferritic stainless steel nui loa i loko o ka chromium, nickel, molybdenum a me nā mea ʻē aʻe, me ka ikaika kiʻekiʻe, ka pale ʻana o ka oxidation a me ke kūpaʻa lole, kūpono no ke kiʻekiʻe wela, ke kiʻekiʻe kiʻekiʻe a me nā kūlana oxidizing medium. He kila kuhiliʻole ferritic maʻamau 410, 420 a pēlā aku.
3. Austenitic ferritic duplex stainless steel: Austenitic ferritic duplex stainless steel he ʻelua mau māhele o ka austenitic a me ka ferritic, kahi e hoʻohui ai i ke kūpaʻa corrosion o ka austenitic stainless steel a me ka ikaika kiʻekiʻe o ka ferritic stainless steel, a kūpono no nā kūlana hana paʻakikī. He kila kuhiliʻole duplex maʻamau 2205, 2507 a pēlā aku.
ʻO ka lua, nā hiʻohiʻona hana
Hōʻike nui ʻia nā hiʻohiʻona hana o nā valve kila kila ma nā ʻano aʻe:
1. ʻOi aku ka maikaʻi o ka pale ʻana i ka corrosion: ʻoi aku ka maikaʻi o ke kūpaʻa ʻana o nā valves stainless steel a hiki ke pale aku i ka corrosion o nā ʻano media like ʻole, e hōʻemi ana i ke kumukūʻai o ka mālama pono ʻana a me ka hoʻololi ʻana.
2. ʻO ka ikaika wela kiʻekiʻe: ʻo ka valve kila kila ka ikaika wela kiʻekiʻe, hiki ke mālama i nā ʻano mechanical maikaʻi i ke ʻano wela kiʻekiʻe, kūpono no ka wela kiʻekiʻe, nā kūlana hana kiʻekiʻe.
3. Ke kū'ē'ana o ka oxidation: he maika'i ke kū'ē'ana o ke kila kila, hiki ke kū'ē i ka'ino o ka media oxidizing a ho'omaika'i i ke ola lawelawe o ka valve.
4. Wear resistance: Loaʻa ka pale pale kila kila, hiki ke hoʻemi i kaʻaʻahu o ka valve i ka wā e hoʻohana ai a hoʻemi i ke kumukūʻai o ka mālama pono a me ka hoʻololi.
5. He maikaʻi ke hoʻopaʻa ʻana i ka hoʻopaʻa ʻana: ʻo ka valve kila kila e hoʻokō i ke ʻano hoʻopaʻa paʻa kiʻekiʻe, maikaʻi ka hana hoʻopaʻa ʻana, hoʻemi i ka pilikia o ka leakage, a hōʻoia i ka palekana a me ka hilinaʻi o ka hana ʻana o nā mea hana.
I ka hōʻuluʻulu manaʻo, ʻo ke kila kila kila i ke koho ʻana i nā mea, ka mea nui e like me nā kūlana hana e koho i ke kila kila austenitic kūpono, ke kila kila ferritic a i ʻole austenitic ferritic duplex stainless steel. Ma keʻano o nā hiʻohiʻona hana o nā valves stainless steel, loaʻa iā lākou ke kūpaʻa corrosion maikaʻi loa, ka ikaika o ka wela kiʻekiʻe, ka pale ʻana o ka oxidation, ke kūpaʻa a me ka hana hoʻopaʻa ʻana maikaʻi, a hoʻohana nui ʻia i nā ʻano ʻoihana like ʻole.
Ka manawa hoʻouna: Sep-08-2023
