ʻAno kila kila DUPLEX a me ke kūlana
| Inoa | ASTM F SERIES | UNS SEries | DIN STANDARD |
| 254SMO | F44 | S31254 | SMO254 |
| 253SMA | F45 | S30815 | 1.4835 |
| 2205 | F51 | S31803 | 1.4462 |
| 2507 | F53 | S32750 | 1.4410 |
| Z100 | F55 | S32760 | 1.4501 |
•Lean Duplex SS - nickel haʻahaʻa a ʻaʻohe molybdenum - 2101, 2102, 2202, 2304
•Duplex SS – nickel a me molybdenum kiʻekiʻe aʻe – 2205, 2003, 2404
•Super Duplex – 25Chromium a me ka nickel a me ka molybdenum kiʻekiʻe aʻe “plus” – 2507, 255 a me Z100
•Hyper Duplex – ʻOi aku ka nui o Cr, Ni, Mo a me N – 2707
Nā Waiwai Mekanika:
•ʻOi aku ka pālua o ka ikaika o nā kila kila Duplex ma mua o ko lākou mau papa austenitic hoa.
•ʻAe kēia i nā mea hoʻolālā lako e hoʻohana i nā mea lahilahi no ke kūkulu ʻana i ka moku!
ʻO ka pōmaikaʻi o ke kila kila Duplex:
1. Hoʻohālikelike ʻia me ke kila kila austenitic
1) ʻOi aku ka ikaika o ka hua ma mua o ka pālua o ke kiʻekiʻe ma mua o ke kila kila austenitic maʻamau, a he lawa ka paʻakikī plastik e pono ai no ka hoʻoheheʻe ʻana. ʻO ka mānoanoa o ka pahu a i ʻole ke kīʻaha kaomi i hana ʻia me ke kila kila duplex he 30-50% haʻahaʻa ma mua o ke kila kila austenitic i hoʻohana pinepine ʻia, he mea maikaʻi ia e hōʻemi i ke kumukūʻai.
2) Loaʻa iā ia ke kūpaʻa maikaʻi loa i ka haki ʻana o ka corrosion stress, ʻoi aku hoʻi i ke kaiapuni e loaʻa ana nā ion chloride, ʻoiai ʻo ka duplex alloy me ka haʻahaʻa loa o ka alloy he kiʻekiʻe ke kūpaʻa i ka haki ʻana o ka corrosion stress ma mua o ke kila kila austenitic. ʻO ka corrosion stress kahi pilikia koʻikoʻi e paʻakikī ai ke hoʻoponopono i ke kila kila austenitic maʻamau.
3) ʻOi aku ka maikaʻi o ke kūpaʻa ʻana o ka kila kila duplex 2205 maʻamau i hoʻohana ʻia ma nā ʻano media he nui ma mua o ke kila kila austenitic 316L maʻamau, ʻoiai ʻo ke kila kila duplex super he kūpaʻa kiʻekiʻe i ka pala. I kekahi mau media, e like me ka waikawa acetic a me ka waikawa formic. Hiki iā ia ke pani i nā kila kila austenitic kiʻekiʻe-alloy a me nā alloys pale i ka pala.
4) Loaʻa iā ia ke kūpaʻa maikaʻi i ka pala kūloko. Ke hoʻohālikelike ʻia me ke kila kila austenitic me ka ʻike like o ka metala, ʻoi aku ka maikaʻi o kona kūpaʻa ʻana i ka ʻaʻahu a me ke kūpaʻa luhi i ka pala ma mua o ke kila kila austenitic.
5) He haʻahaʻa ka coefficient o ka hoʻonui linear o ke kila kila austenitic a kokoke i ke kila kalapona. He kūpono ia no ka hoʻopili ʻana me ke kila kalapona a he koʻikoʻi koʻikoʻi ka ʻenekinia, e like me ka hana ʻana i nā papa composite a i ʻole nā linings.
2. Ke hoʻohālikelike ʻia me ke kila kila ferritic, ʻo nā pono o ke kila kila duplex penei:
1) ʻOi aku ke kiʻekiʻe o nā waiwai mechanical piha ma mua o ke kila kila ferritic, ʻoi aku ka paʻakikī o ka plastic. ʻAʻole like ka maʻalahi o ka brittleness me ke kila kila ferritic.
2) Ma waho aʻe o ke kūpaʻa ʻana i ka corrosion stress, ʻoi aku ka maikaʻi o ke kūpaʻa kūloko ʻē aʻe ma mua o ke kila kila ferritic.
3) ʻOi aku ka maikaʻi o ka hana hana anu a me ka hana hoʻokumu anu ma mua o ke kila kila ferritic.
4) ʻOi aku ka maikaʻi o ka hana kuʻihao ma mua o ke kila kila ferritic. Ma keʻano laulā, ʻaʻohe pono o ka mālama wela ma hope o ka hoʻomehana mua ʻana me ka ʻole o ka kuʻihao.
5) ʻOi aku ka laulā o ka noi ma mua o ke kila kila ferritic.
NoiMa muli o ka ikaika kiʻekiʻe o ke kila duplex, mālama ia i nā mea, e like me ka hoʻemi ʻana i ka mānoanoa o ka paia o ka paipu. ʻO ka hoʻohana ʻana iā SAF2205 a me SAF2507W ma ke ʻano he mau laʻana. He kūpono ʻo SAF2205 no ka hoʻohana ʻana i nā wahi i loaʻa ka chlorine a he kūpono no ka hoʻohana ʻana i ka hale hoʻomaʻemaʻe a i ʻole nā mea hana ʻē aʻe i hui pū ʻia me ka chloride. He kūpono loa ʻo SAF 2205 no ka hoʻohana ʻana i nā mea hoʻololi wela e loaʻa ana ka chlorine wai a i ʻole ka wai paʻakai ma ke ʻano he mea hoʻomaʻalili. He kūpono hoʻi ka mea no nā hopena waikawa sulfuric dilute a me nā waikawa organik maʻemaʻe a me nā hui ʻana o ia mea. E like me: nā paipu aila ma ka ʻoihana aila a me ke kinoea: ka wehe ʻana i ka paʻakai o ka aila maka ma nā hale hoʻomaʻemaʻe, ka hoʻomaʻemaʻe ʻana i nā kinoea i loaʻa ka sulfur, nā lako hana hoʻomaʻemaʻe wai ʻino; nā ʻōnaehana hoʻomaʻalili e hoʻohana ana i ka wai paʻakai a i ʻole nā mea hoʻonā i loaʻa ka chlorine.
Hoʻāʻo Mea:
Hoʻomaopopo ʻo SAKY STEEL e hele kā mākou mau mea a pau i nā hoʻāʻo maikaʻi loa ma mua o ka hoʻouna ʻana iā lākou i kā mākou mea kūʻai aku.
• Hoʻāʻo mīkini e like me ka tensile o ka wahi
• Hoʻāʻo Paʻakikī
• Ka Nānā Kemika - Ka Nānā Spectro
• Ka ʻIke Mea Maikaʻi - Hoʻāʻo PMI
• Hoʻāʻo Hoʻopālahalaha
• Hoʻāʻo liʻiliʻi a me ka Macro
• Hoʻāʻo Kū'ē Pitting
• Hoʻāʻo Flaring
• Hoʻāʻo ʻana i ka palaho intergranular (IGC)
E WELINA MAI I KA NĪNAU ʻANA.
Ka manawa hoʻouna: Sep-11-2019