Duplex2507 intsimbi engatyiwayo 1.4410(UNS32750)

Yintoni Duplex2507 yintsimbi engatyiwayo?

I-Duplex 2507 (UNS S32750) yintsimbi engatyiwayo ye-super duplex enekromu engama-25%, imolybdenum engama-4%, kunye nenikeli engama-7%, eyenzelwe usetyenziso olunzima olufuna amandla agqwesileyo nokuxhathisa ukugqwala, njengokwenza iikhemikhali, iipetrochemical, kunye nezixhobo zamanzi olwandle. Le ngqolowa inokumelana okugqwesileyo nokuqhekeka ngenxa yoxinzelelo lwe-chloride, ikhokelela ubushushu kakuhle, kwaye inekhoyi-fayintshi ephantsi yokwandiswa ngobushushu. Amanqanaba aphezulu e-chromium, i-molybdenum, kunye ne-nickel anika ukumelana okugqwesileyo nokugqwala okuncinci (pitting), okwezikhala (crevice), kunye nokugqwala ngokubanzi.

Iimveliso zeSuper Duplex 2507 zentsimbi engatyiwayo 1.4410

• Iiflangi (Ukwelda isokethi, Ukwelda) Intamo, Enomsonto, Engaboniyo, Umngxuma, Utyibilikayo, Udibaniso lwe-lap
• Intambo
• Ibha
• Ipleyiti
• Izixhobo zemibhobho (izibuyisi, iiblinds, iinipple zemibhobho, izixhobo zemibhobho, iziciko, iiti, iintamo zokukhandela, iziphelo ezimfutshane, amagxolo, izincipisi, iintamo zokukhandela ezinde, iikhros, izixhobo zemibhobho yetyhubhu)
• Iphepha
• Ipayipi netyhubhu (ezidityanisiweyo nezingenazamathungo)

Izicelo zikaDuplex2507 intsimbi engatyiwayo

• Izixhobo zeshishini le-oyile negesi
• Iiplatfomu zaselwandle, Izitshintshi zokushisa, iinkqubo zamanzi okucocwa nawenkonzo, iinkqubo zokucima umlilo, iinkqubo zokutofa amanzi kunye neenkqubo zamanzi ebalast
• Amashishini enkqubo yekhemikhali, izitshintshi zokushisa, izikhongozeli, nemibhobho
• Iizikhululo zokukhupha ityuwa emanzini, isikhululo se-RO esinoxinzelelo oluphezulu kunye nemibhobho yamanzi olwandle
• Iinxalenye zoomatshini nezakhiwo, ezinamandla aphezulu, nezingagugiyo
• Iinkqubo ze-FGD zeshishini lombane, iinkqubo ze-scrubber zikamasipala nezamashishini, iinqaba ezifunxayo, imibhobho yokuhambisa umoya, nemibhobho

EOluqhelekileyo lwe-grade 2507

I-EU IsiNgesi	I-United States yaseMelika –	Efransi Afnor	Isweden I-SS
X2CrNiMoN25-7-4	S32750	Zintathu C N D Amashumi amabini anesihlanu-06 A Z	2328

Ukwakhiwa Iindidi zeklasi ye-2507 yentsimbi engatyiwayo

1.4410 Super Duplex Ukwakhiwa kweekhemikhaliUmbhali: U-Nobuhle IbangaCNMoyaKhrayisitiNikhobhi1.4410 (S32750 – F53)%0.03 ubuninzi%0.24 – 0.32%3 – 5%24 – 26%6 – 8

Iimpawu zoomatshini

Isimo sengqondo	Ufudunyezwe
Amandla okutsalwa kwe-Rm	115	umzuzwana (owona mncinci)
Amandla okutsalwa kwe-Rm	800	MPa (eyona ncinci)
R.p. 0.2% Isivuno	80	umzuzwana (owona mncinci)
R.p. 0.2% Isivuno	550	MPa (eyona ncinci)
Ukweluleka (2” okanye 4D gl)	15	% (ubuncinci)

Iimpawu Zomzimba

Ubushushu Obuthe Ngqo (0-100°C)	500	J.kg⁻¹·°K⁻¹
Ukuhamba kobushushu	15	W.m -1.°K-1
Ukwandeka ngenxa yobushushu	11	im/um/°C
Umlinganiselo wobunwebu	200	I-GPa
Ukumelana kombane	8.12	I-micro-ohm nge-sentimitha
Uxinano	7.8	igram ngesentimitha esikwere

Ukumelana nokugqwala

I-32750 inokumelana nokugqwala okubanzi okugqwesileyo, igqwesa phantse zonke ezinye izinyithi ezingatyiwayo. Ina

Umxhuzulane ophezulu ekugqwaleni okungaphakathi kweengqameko kunye nomxhuzulane ophezulu kakhulu ekuqhekekeni okubangelwa luxinzelelo nokugqwala

Kuzo zombini iimeko zechloride neesulphide. Lulo uhlobo olukhethwayo kwiimeko ezinzima zokushisa okuphezulu.

iimeko-bume zaselwandle nakwimveliso yeekhemikhali neyepetrochemical, kwanokubandakanya ezinye

Izisombululo ze-asidi ezinamandla.

Unyango lobushushu

I-2507 kufuneka i-annealed esisombululweni ize ipholiswe ngokukhawuleza emva kokubunjwa okushushu okanye okubandayo. I-annealing esisombululweni kufuneka yenziwe kubushushu obungaphantsi kwe-1925°F. Emva kwe-annealing, kufuneka kulandele ngokukhawuleza ukupholiswa ngomoya okanye ngamanzi. Ukuze kufumaneke ukumelana nokugqwala okuphezulu, iimveliso ezifudunyezweyo kufuneka zihlanjwe ngasawoti (pickled) zize zihlantswe.

Ukusebenza okushushu

I-2507 kufuneka isetyenzwe ishushu phakathi kwe-1875ºF ne-2250ºF. Oku kufuneka kulandelwe yi-solution anneal ekwi-1925ºF ubuncinane kunye nokupholisa ngokukhawuleza ngomoya okanye ngamanzi.

Ukusebenza ngokuqinileyo

Uninzi lweendlela eziqhelekileyo zokubumba intsimbi engatyiwayo zingasetyenziswa kumsebenzi obandayo we-2507. Le alloy inamandla aphezulu okuncipha kunye nokuguquguquka okuphantsi kuneentsimbi ze-austenitic, ngoko ke abasebenzi bokubumba banokufumanisa ukuba kufuneka amandla aphezulu okubumba, i-radius yokugoba eyandisiweyo, kunye nendawo eyandisiweyo yokubuyela emva (springback). Iinkqubo ezifana noku-drawa okunzulu, uku-stretch forming, kunye nezinye ezifanayo kunzima ngakumbi ukuzisebenzisa kwi-2507 kunakwintsimbi engatyiwayo ye-austenitic. Xa ukubumba kufuna i-deformation ebandayo engaphezulu kwe-10%, kuyacetyiswa ukuba kusetyenziswe i-solution anneal kunye ne-quench.

Ukushushu-welda

I-2507 inokushicilelwa kakuhle kwaye inokudityaniswa nayo ngokwayo okanye nezinye izinto ngokusebenzisa i-shielded metal arc welding (SMAW), i-gas tungsten arc welding (GTAW), i-plasma arc welding (PAW), i-flux cored wire (FCW), okanye i-submerged arc welding (SAW). Isinyithi esigcwalisiyo i-2507/P100 kuyacetyiswa xa kuyilwayo i-2507 kuba iza kuvelisa isakhiwo soludwe olufanelekileyo lwe-duplex.

Ukufudumeza kwangaphambili kwe-2507 akuyomfuneko ngaphandle kokuthintela ukubila kwintsimbi ebandayo. Iqondo lobushushu bokuwelda phakathi kwezigaba akufuneki lidlule i-300°F kungenjalo ukomelela komsebenzo wokuwelda kunokuchaphazeleka kakubi. Isiseko somsebenzo wokuwelda kufuneka sikhuselwe nge-argon okanye igesi yokucoca i-90% N2/10% H2 ukuze kukhuseleke ngokugqibeleleyo ngokuchasene nokugqwala. Le yokugqibela inika ukhuselo olungcono ngokuchasene nokugqwala.

Iinzuzo eziPhambili zeNtsimbi engatyiwayo i-Duplex2507

I-Duplex2507 yentsimbi engatyiwayo inika iinzuzo ezininzi kusetyenziso lwezoshishino. Umdibaniso wayo wamandla nokumelana nokugqwala awuthelekiseki nezinye izinto ezininzi. Ezi mpawu ziqinisekisa ukuthembeka phantsi kweemeko ezinzima.

Ukungabizi kakhulu kwale alloy yeyona enye inzuzo yayo. Nangona isebenza kakuhle kakhulu, ifumaneka ngexabiso eliphantsi kunezinye iindlela ezininzi ezisekelwe kwi-nickel. Oku kuyenza ibe lukhetho olunomtsalane kwiiprojekthi ezijonge ukonga.

Nazi ezinye zeenzuzo eziphambili ze-Duplex 2507:

• Umlinganiselo ophezulu wamandla nobunzima
• Ukumelana okugqwesileyo nokuguga
• Ukumelana nokudinwa nokukrwempuka

Imiba yokuveliswa nokuphathwa

Iingqwalasela ezibalulekileyo ziquka:

• Ukusebenzisa iindlela ezithile zokutshixa
• Ukulawula iinkqubo zonyango lobushushu
• Ukulandela imigangatho yeshishini

Ezi zinto zenziwayo zinceda ukugcina ukumelana kwentsimbi nokugqwala kunye namandla ayo oomatshini. Ukuphathwa ngokufanelekileyo kuqinisekisa ukuhlala ixesha elide kunye nokusebenza kakuhle kwizicelo ezifuna umgudu.

Isiphelo

I-Duplex2507 yintsimbi engatyiwayo eyimathiriyeli ebalaseleyo eyaziwa ngamandla ayo nokumelana nokugqwala. Idlala indima ebalulekileyo kwiimeko ezinzima, inika ukuqina nokongamali. Kwiinjineli nakubakhi, imi njengokhetho ethembekileyo kwiinkqubo ezahlukeneyo ezifuna kakhulu.