ʻO 2205 duplex stainless steel he duplex stainless steel i haku ʻia me 21% chromium, 2.5% molybdenum a me 4.5% nickel-nitrogen alloy. ʻO ka ferrite a me ka austenite hale i kēlā me kēia helu no kahi o 50%. Loaʻa iā ia ka ikaika kiʻekiʻe, ka paʻakikī o ka hopena maikaʻi a me ka maikaʻi holoʻokoʻa a me ke koʻikoʻi kūloko. ʻO ka ikaika hoʻohua o 2205 duplex stainless steel ʻelua ʻelua o ka austenitic stainless steel. ʻO kēia hiʻohiʻona e hiki ai i nā mea hoʻolālā ke hoʻemi i ke kaumaha i ka wā e hoʻolālā ai i nā huahana, e hoʻolilo i kēia huila i ʻoi aku ka maikaʻi ma mua o 316 a me 317L. He kūpono kēia huila no ka pae wela o -50°F/+600°F. No nā noi ma waho aʻe o kēia pae wela, hiki ke noʻonoʻo ʻia kēia huila, akā aia kekahi mau palena, ʻoi aku ka hoʻohana ʻana i nā hale welded.
Ke hoʻohālikelike ʻia me 316L a me 317L austenitic stainless steel, 2205 duplex stainless steel i ʻoi aku ka maikaʻi o ka hoʻokō ʻana i ka pale ʻana i ka pitting corrosion a me ka crevice corrosion. Loaʻa iā ia ke kūpaʻa corrosion kiʻekiʻe. Hoʻohālikelike ʻia me austenitic, ʻo ia ʻO ka coefficient o ka hoʻonui ʻana i ka wela ka haʻahaʻa a ʻoi aku ka kiʻekiʻe o ka conductivity thermal. Ke hoʻohālikelike ʻia me ke kila kila austenitic, ʻelua ʻelua o kona ikaika compressive duplex stainless steel 2205 alloy. Hoʻohālikelike ʻia me 316L a me 317L, hiki i ka mea hoʻolālā ke hoʻemi i kona kaumaha. He kūpono loa ka Alloy 2205 no ka pae wela o -50°F/+600°F. Ma lalo o nā palena koʻikoʻi (ʻoi loa no nā hale welded), hiki ke hoʻohana ʻia i nā haʻahaʻa haʻahaʻa.
ʻO ka hoʻoheheʻe ʻia ʻana o ke kila kila ʻole Duplexʻo ia hoʻi nā hoʻolei ʻana i hana ʻia me ka duplex stainless steel. ʻO ka Duplex Stainless Steel (DSS) e pili ana i ke kila kila me ka ferrite a me ka austenite i kēlā me kēia helu no kahi o 50%. ʻO ka maʻamau, ʻo ka maʻiʻo o nā ʻāpana liʻiliʻi e pono ma kahi o 30%. I ka hihia o ka haʻahaʻa C maʻiʻo, ka Cr maʻiʻo ka 18% a 28%, a me ka Ni maʻiʻo mea 3% a 10%. Loaʻa i kekahi mau mea kila kila duplex e like me Mo, Cu, Nb, Ti, a me N.
Loaʻa i ka DSS nā hiʻohiʻona o ka austenitic a me ka ferritic stainless steel. Hoʻohālikelike ʻia me ka ferrite, ʻoi aku ka kiʻekiʻe o ka plasticity a me ka ductility, ʻaʻohe lumi wela brittleness, a me ka hoʻomaikaʻi maikaʻi ʻana i ke kūpaʻa intergranular corrosion a me ka hana kuʻi ʻana, ʻoiai e mālama mau ana i ka brittleness, kiʻekiʻe thermal conductivity, a me ka superplasticity e like me ferrite stainless steel. Ke hoʻohālikelike ʻia me ka austenitic stainless steel, he ikaika kiʻekiʻe ka DSS a hoʻomaikaʻi maikaʻi i ke kūʻē ʻana i ka corrosion intergranular a me ka corrosion stress chloride. He kila kila maikaʻi loa ka Duplex stainless steel.
I ka hoʻolei ʻana i ka hana, ua hoʻopau ʻia ka hapa nui o nā mea hoʻoheheʻe kila kila ehoʻolei kālā. ʻOi aku ka maʻalahi o ka ʻili o nā hoʻoheheʻe kila kila i hana ʻia e ka hoʻolele kālā a ʻoi aku ka maʻalahi o ka hoʻokele ʻana i ka pololei. ʻOiaʻiʻo, ke kumukūʻai ohoʻolei kālā ʻāpana ʻāpana kilakiʻekiʻe ke kiʻekiʻe ma mua o nā kaʻina hana a me nā mea hana ʻē aʻe.
▶ Hiki oKahua Hoole Waiwai
• Nui Nui: 1,000 mm × 800 mm × 500 mm
• Kaumaha: 0.5 kg - 100 kg
• Makahiki Makahiki: 2,000 tons
• Nā mea paʻa no ke kūkulu ʻana i ka pūpū: Silica Sol, Water Glass a me kā lākou hui ʻana.
• Hoʻomanawanui: Ma ke noi.
▶ Ke Kaʻina Hana Hana Nui o ka hoʻolei kālā
• E hana i ka wax pattern a i ole kope paha
• Sprue i ke kumu wax
• Hoʻokomo i ke ʻano wax
• E hoʻopau i ke ʻano o ka wax ma ke puhi ʻana iā ia (i loko o ka umu ahi a i ʻole ka wai wela) e hana ai i ka poni.
• E ninini ikaika i ka metala i hooheheeia
• Hooluu a Solidification
• Wehe i ka sprue mai nā castings
• E hoʻopau a hoʻopololei i nā hoʻolei kālā i hoʻopau ʻia
