Insimbi engu-316l engagqwali yi-alloy e-auntenitic evame ukubizwa ngokuthi "i-marine grade yensimbi engenacala" ngoba isetshenziswa cishe ku-90% yezicelo zasolwandle - kufaka phakathi ukuhlunga. Ngaphezu kwezinsimbi ezifana ne-iron ne-nickel, i-366L iqukethe i-16-18% chromium kanye no-2-3% molybdenum. Lezi zinto zibalulekile ngoba zithuthukisa ukumelana nokugqwala kwe-alloy; I-Chromium ixhumana nomoya-mpilo emanzini olwandle ukuze wakhe ungqimba oluvikelayo lwe-chromium oxide, kuyilapho uMolybdenum ethuthukisa ukumelana kwensimbi ekugculweni kwensimbi. Ngokwengeziwe, i-366l inokuqukethwe okuphansi kwekhabhoni (yingakho ukusetshenziswa kwe- "l" egameni layo), okukunikeza ukuvikela okungcono ekubhujisweni.
Imigoqo yensimbi ye-alloy & izindukuI-Ejwayelekile isusa ukungcola ngensimbi futhi inyusa amandla awo nobulukhuni bayo. Lokhu kutholakala ngokushintsha usayizi we-srains ukuze kubenze bafanekiswe kakhulu kulo lonke ishidi lensimbi. Insimbi ifudunyezwa okokuqala kumazinga athile bese ipholiswa umoya.
Ibanga 1.4404 noma i-316l yinsimbi yensimbi engenasici aisi 316 enokumelana kahle kakhulu ngenxa yokuqukethwe kwayo okuphezulu kwe-chromium kanye nokuqukethwe kwe-molybdenum nokuqukethwe okuphansi kwekhabhoni nokuqukethwe okuphansi kwekhabhoni. Amandla ayo esimweni esilukhuni acishe abe ngu-600 MPA ngamadayimane amakhulu, kodwa ezingxenyeni ezincane, amandla angakhushulwa ngokusebenza kubanda.
IMyanmar (isiBurmese)Inhloso yokwelashwa kokuvuselela ukushisa ukwenza ngcono ukucubungula, susa ukucindezela kwangaphakathi futhi ulungiselele isakhiwo esihle se-metalligraphic sokwelashwa kokugcina. Inqubo yokwelashwa ekushiseni ifaka phakathi ukuncibilikisa, okujwayelekile, ukuguga, ukuguga nokucisha, njll.
Ukungena phakathi kuka-1050 no-108¡ngÃc kungenziwa ngemuva kokuphendula, kulandele ukujula okusheshayo, ikakhulukazi ukubuyisela ukumelana nokugqwala, kepha akukho ukwelashwa okushisa ukuze uqinise ama-316l.
Isakhiwo se-autenitic sensimbi engu-316 esingenasici sinikeza ubulukhuni obuhle kakhulu ngisho nasemazingeni okushisa aphansi.
Inqubo Ejwayelekile iyinqubo yokushisa yokushisa esetshenziselwa ukwenza izinsimbi ze-ructile ngokwengeziwe ne-ductile ngemuva kwenqubo yokuqina noma yemishini. Ukuguqula isimo kufaka phakathi ukufudumeza okungokwezinga lokushisa okuphezulu bese kukuveza emoyeni lokushisa kwegumbi ngemuva kokushisa, ukuvumela ukuthi kuphole ekushiseni kwegumbi. Lokhu kufudumeza nokupholisa kancane kuguqula i-miscruccucture yensimbi, kunciphisa ubulukhuni bayo futhi kwandise ukulahleka kwalo.
Inhloso yokwelashwa kokushisa kokuqala: Ukuqeda ezinye iziphambeko ezingenalutho nasemikhiqizweni eseqedile, kanye nokulungiselela inhlangano yokusebenza okulandelayo kokusebenza okubandayo nokugcina.
I-Ejwayelekile isetshenziselwa ikakhulukazi ukwakheka kwesakhiwo sensimbi yekhabhoni nensimbi ephansi ye-alloy ngemuva kokukhipha, ukugoqa okushisayo noma ukusakaza. Ubulukhuni obutholwe ngemuva kokuncipha kuncike ekuhlaziyweni kwensimbi nobukhulu obusetshenzisiwe (cishe i-100-250 HB).
Phakathi kwezicelo eziningi, imikhiqizo ifaka phakathi izingxenye zokusetshenziswa kwe-mehendi, amakhemikhali, u-petroleum, ukudla okubukwayo, ukudla kanye nesiphuzo, kanye nezimboni zezokwelapha.
I-Stainless, Duplex, Alloy ekhethekile, Info, Monel, Monel, Hastelloy, Nitronic & Carbon Insimbi - I-Zhengzhou Huitong Pipeline Equipment Co, Ltd.
Ukuvezwa okuqhubekayo noma okuhlala isikhathi eside kohlobo 316l kuya ku-800-1500¡Ãf (427-816¡Ãc) Kungaba yingozi. Ngaphezu kwalokho, ukukhululeka kwengcindezi phakathi kuka-100-1500¡Ãf (593-816¡Ãc) kungadala lolu hlobo lokulwa okuncane.
I-Incoloy 825 Alloy yi-nickel-iron-chromium alloy ehlanganisa i-molybdenum, ithusi ne-titanium ukuthola ukumelana okuhle nezindawo eziningi ezilimazayo. I-Incoloy 825 imelana nokukhulisa kakhulu. Inokuqukethwe okuphezulu kwe-nickel, kwanele ukumelana nokugqwayiza kwe-chloride ion ukuxabana kokuqhekeka, kanye nokucushwa okuzinzile okuzinzile kakhulu.
Insimbi engagqwali engama-304 tubing itholakala njengomthungo noma i-welded. Amapayipi angadonswa njengamashubhu angenamthungo avela ku-billet eyodwa noma eshisiwe kusuka ku-strip noma eshidi. Kunezindlela ezahlukahlukene ze-welding ezifana nokuphikiswa kokuphikiswa kwamapayipi amancane kanye ne-electroful welding yamapayipi amakhulu abuyisiwe.
Ngokuvamile, uhlobo lwe-316 Ibanga le-316 lingabhekwa ngokulinganayo endaweni enikeziwe. Ukuhluka okuphawuleka kungukugqwala okuthethelwe ngaphakathi endaweni ethintekile ekushiseni kuma-welds kanye nama-alloys asezingeni elifanele ezindaweni ezizolahla ngokwanele. Kumithombo yabezindaba, thayipha i-316l ilungele kakhulu izimo ze-welding kunohlobo 316 ngoba okuqukethwe okuphansi kwekhabhoni kukhulisa ukumelana nokugqwala komoya.
Ngokungafani nezinye izinhlobo zensimbi ezifana ne-304 no-306, i-altoy yensimbi engama-316l ingasetshenziswa ezinhlobonhlobo zezicelo lapho ukumelana nokugqwala okuphezulu kudingeka khona. Isibonelo, ochwepheshe kwizimboni zamakhemikhali nezemithi bayisebenzisa ukwenza amathuluzi okuhlinza kanye nezimpawu zokwelashwa.
Isici esibalulekile se-Incoloy Exx N08800 Elbow ukuthi akugcini nje ngokubonisa izakhiwo ezinhle zemishini ezimweni zokushisa ezikhona, kodwa futhi zenza kahle kumalungiselelo okushisa aphezulu kuze kube ngu-1000¡ãff.
Ama-auntenitic ama-stainless angenasisekelo athambekele ekuqhekekeni kwengcindezelo kokuqhekeka (i-SCC) ezindaweni ze-halide. Yize uthayipha izinhlobo ezingama-316 zimelana kakhulu ne-SCC kune-alloys ye-18CR-8 NI ngenxa yokuqukethwe kwabo kwe-molybdenum, basathambekele. Izimo ezikhiqiza i-SCC yilezi: (1) Ukuba khona kwe-halide ion (imvamisa chloride ion), (2) ukucindezelwa okusele okusele, kanye (3) namazinga okushisa angaphezulu kwe-120¡ã (49¡Ãc).
Ama-welds e-autenitic agcwele athambekele kakhulu ekuqhekekeni ngesikhathi se-welding. Ngalesi sizathu, thayipha izinhlobo ezingama-316 bese uthayipha ama-316l "ama-filler izinsimbi zenzelwe ukwelapha ngenani elincane le-ferrite kwi-mistructure ukuze unciphise ukuncipha.
I-Ejwayelekile yenzelwe ukunikeza insimbi yesakhiwo esinomfaniswano nenhle. Le nqubo isetshenziselwa ukuthola i-missructure ebikezelayo kanye nesiqinisekiso sezindawo zemishini yensimbi.
Inqubo yokwelashwa kokushisa lapho insimbi ifudunyezwa khona emazingeni okushisa afanele (ngenhla noma ngaphansi
I-SA312 i-Pipe ifakazelwe ukuthi iyinto eguquguqukayo engasetshenziswa ezinhlobonhlobo zezimboni ezibucayi. I-Alloy grade 304 Insimbi engenasici 304 Ipayipi elingu-304 liyathandwa ngenxa yokumelana kwayo okuhle kokugqwala kwabezindaba ahlukahlukene.
Enye into engu-304 ipayipi lensimbi engagqwali ukuthi insimbi inamandla amahle kakhulu okuqina nokuqina, okubonakala noma ngabe la mapayipi evezwa ezindaweni eziphansi zokushisa.
Kubalulekile ukuthi ukwaziswa okusetshenziselwe noma yiliphi iphrojekthi inezakhiwo ezifanele zemishini zohlelo oluthile. Izinqubo zokwelashwa okushisa zivame ukusetshenziselwa ukuguqula izakhiwo zemishini zezinsimbi, futhi enye yezinqubo ezivame ukwelashwa ukushisa ziyejwayelekile.
Insimbi engagqwali iguquguqukayo; Akugcini nje ngokuba nokwakheka okuqinile kanye nezakhiwo ze-welding, kepha futhi kunamandla okusonga noma ukugoqa, ngakho-ke kungaguqulwa kalula kube izinhlelo zokusebenza ezahlukahlukene.
I-copyright © zhengzhou Huitong Pipeline Equipment Co, Ltd. Wonke Amalungelo Agodliwe
I-316l yensimbi engenasici angenacala asetshenziselwa izicelo ezinobukhulu obukhulu. Imvula ye-carbide engaphansi ngesikhathi sokufudumala kwepayipi inciphisa ukugqwala okunhlangothi kanye nokugqwala kwasendaweni. Amashubhu ase-Seamless avela? " kuya ku-16 ".
Ezindaweni eziphakeme zokushisa, i-316 insimbi engenasici ivame ukwehla ku-304.
I-SMO 254 ERW Pipe isetshenziswa lapho kudingeka khona izakhiwo nokuphikiswa kwensimbi. Okuqukethwe okuphezulu kwe-molybdenum ne-chromium futhi kwenza i-SMO 254 square tube imelana kakhulu nama-acid angadala ukupela.
I-254smo (Uns S31254, ASTM F44, 1.4547) iyinsimbi ebizwa nge-Supen Auntenitic yensimbi. Ngokwengeza okuqukethwe kwe-molybdenum ku-6%, kufinyelela inani elilinganayo lokuphikisana (pren)> 43, okufana ne-Super Dumplex Steel engenacala (SDSS).
Uhlobo lwe-316 Alloy lubhekwa njengelilungele izinhlelo ezithile zemvelo zasolwandle, ezinjengezitimela zomkhumbi kanye nezindondo zangaphandle zezakhiwo eziseduzane nolwandle oluvezwa ulwandle oluvezwa ngusawoti. Uhlobo lwensimbi engu-316 lukhombisa ubufakazi bokugqwala ngehora le-100, i-5% Spray Spray (ASTM-B-117) Hlola.
