Uma uzwa i-N06625, noma i-Inconel 625 njengoba abantu abaningi esitolo beyibiza kanjalo, into yokuqala efika engqondweni ngokuvamile 'izinga lokushisa eliphezulu' noma 'i-corrosion resistant'. Yilokho ugibe ovamile. I-nuanced kakhulu kunalokho. Ngibone amaphrojekthi ema ngoba othile uyicacisile ecabanga ukuthi ilingana nobukhulu obubodwa kunoma yini enolaka. Akunjalo. Indaba yangempela isekuziphatheni kwayo ngesikhathi sokwenziwa nangaphansi kwezimo ezithile zesevisi, hhayi kumininingwane kuphela. Udeveli, njengenjwayelo, usemininingwaneni yokusebenza nayo.
I-Fabrication Reality Check
Ake sikhulume ngomshini. Noma ubani osebenzisa i-lathe noma isigayo ku-625 uyazi ukuthi umuzwa wokuqala othi 'oh, lokhu kuncipha kulungile' kuvula indlela yenhlonipho. Isebenza-inzima. Ngokushesha. Uma ungakutholi okuphakelayo kwakho nesivinini kusukela lapho uya khona, awugcini nje ngokuguga okufakiwe; udala ungqimba olungaphezulu kakhulu kangangokuthi ukudlula okulandelayo kuba yiphupho elibi. Ngifunde lokhu kabuhlungu kusenesikhathi, ngizama ukuthatha isikwele esincane sokuphothula ku-shaft ephendukile ukuze ngibe ne-skate yamathuluzi futhi ngishise indawo engaphezulu. Ingxenye yayiyizicucu. Udinga ukusethwa okuqinile, amajiyometri e-pozitive rake, kanye nesiyalo ukuze ugcine ithuluzi lisebenza futhi lisikiwe, lingahlikihli. Ukupholisa? Kukhukhule. Hhayi okokugcoba okungangokuthi kudonse ukushisa kude nendawo esikiwe ukuze kuncishiswe lowo mphumela wokuqina.
Kulapho ukubambisana nesitolo esinebanga elingakanani kulezi zinsiza kwenza umehluko. Ngibuyekeze umsebenzi wezindawo ezifana nalezi I-Qingdao Qiangsenyuan Technology Co., Ltd.(QSY). Ukugxila kwabo isikhathi eside CNC imishini ama-alloys akhethekile akuyona nje iphoyinti lenhlamvu. Ungakubona emakhasini abo enqubo - bangena emininingwaneni yamasu endlela yamathuluzi ama-alloys asekelwe ku-nickel ukuphatha ukushisa nokucindezeleka, okuyilokho kanye okufunwa ngu-625. Kuwukuqonda okusebenzayo okuvela ekwenzeni izingxenye, hhayi nje ukuzicaphuna.
Bese kuba nokushisela. Isigaba se-laves. Leyo yi-boogeyman yama-welders angama-625. Ukufakwa kokushisa okuningi kakhulu, noma isigcwalisi esingafanele, futhi uthola lezi zinhlanganisela ze-brittle intermetallic endaweni yokushisela. Ngikhumbula umlomo wombhobho we-pressure lapho i-weld yadlula yonke into ebonakalayo ne-X-ray kodwa yehluleka ekuhlolweni kokucindezeleka. I-Microanalysis ibonise ukwakheka kwama-laves. Ukulungisa kwakungekona nje ukushintsha amapharamitha; ibishintshela ku-filler metal elinganiselayo ngokuqondile ukucindezela lokho kwakheka, njenge-625 Plus. Yengeza izindleko, kodwa kwakuwumehluko phakathi kokulungisa nokuhluleka ensimini. Lokhu kwaziswa kukufundisa ukuthi ukufaneleka kwenqubo akukona okusemthethweni; kuwumongo wobuqotho.
Beyond Corrosion: Ukucaciswa Kokusebenza
Yebo, igqamile ezindaweni ezine-oxidizing. Kodwa ukusebenza kwayo kwenkanyezi, ngokubona kwami, kungokwe-chloride-ion stress-corrosion cracking (SCC) ukumelana. Sayisebenzisela izigxobo zephampu zamanzi anosawoti lapho u-316L ubezoqhekeka ngesizini. Kodwa nansi i-nuance: lokho kumelana akupheli. Ngibone i-pitting iqala ngaphansi kwezimo ezimile, ezimbi lapho ama-chloride agxila khona. Ingxubevange imelana nokuqhekeka, kodwa sisathola ukuhlaselwa kwendawo. Siyini isifundo? Ukukhetha okubalulekile kuwukukhetha komklamo wesistimu. Usadinga ukucabangela ukugeleza, ukuhlanza ukufinyelela, nokumatanisa nezinto ezifanele zokuvala.
Amandla ayo ezinga lokushisa eliphezulu angenye indawo yokungaqondi kahle okuncane. Abantu babheka izinombolo eziqinile ze-1000°F+ futhi bacabange ukuthi ezezigaba ezishisayo kuma-turbines. Ngenkathi isetshenziswa lapho, i-niche yayo imvamisa indawo emaphakathi - yithi, amasistimu e-exhaust noma ukulungiswa kokwelashwa kokushisa - lapho udinga amandla amahle okukhasa kodwa futhi nokumelana ne-oxidation emangalisayo. Okuqukethwe kwe-chromium kwakha isikali esizinzile, esivikelayo. Sayisebenzisela amashubhu akhazimulayo esithandweni somlilo se-carburizing. Badlule izinto zangaphambilini ngesilinganiso sokuthathu, hhayi ngoba benamandla ezingeni lokushisa, kodwa ngenxa yokuthi abazange balinganise futhi behlise izinga. Imodi yokwehluleka ishintshile ukusuka ekuncipheni kancane kancane ukuya ekuqhekekeni kokukhathala okushisayo ngemva kwesevisi eyengeziwe yeminyaka.
Lokhu kuxhuma emuva ohlangothini lwe-Foundry. Izici zokulingisa ze N06625 kukhona… ngokukhethekile. Kujwayele ukuba ne-microporosity kanye nokuhlukaniswa uma izinga lokushisa lokuthulula kanye nokushisa kwesikhunta kungalawulwa ngokuqinile. Isitolo esenza i-investment casting noma ukubunjwa kwegobolondo ngale ingxubevange ngempumelelo akukhona nje ukuthela insimbi; baphethe idrama eshisayo ukusuka esithandweni ukuya ku-shakeout. I QSY iwebhusayithi ikhuluma ngomsebenzi wabo ama-alloys akhethekile, okuhlanganisa ngokusobala leli zinga lokulawula inqubo. Uma uthola ingxenye ye-cast 625, uthenga umthetho olandelwayo wokushisa onesiyalo we-Foundry.
I-Supply Chain kanye neQuirk Formability
Ukuthola ibha noma ipuleti elingashintshile le-625 kulula manje kuneminyaka eyishumi edlule, kodwa kufanele ubuke izitifiketi zokugaya njengoklebe. Hhayi nje okwekhemistri, kodwa okomlando oshisayo nowokuhlanganisa. Sake sathola ipuleti elihlangabezana nokucaciswa kwe-AMS ne-ASTM ephepheni kodwa labonisa ukuhlukahluka okusendle kokwenza izinto ngobude bayo. Uphenyo lukhomba indawo yokugcina engalingani endaweni yokugaya, okushiya ezinye izindawo zinesakhiwo esiqinile, esingaphansi kwamapayipi. Isigayo sikwenze kwalunga, kodwa kusibizele isikhathi esingangesonto. Manje, asicacisi nje izinga kuphela, kodwa ngokuvamile umzila othile wokucubungula noma umkhiqizi othandwayo wezinhlelo zokusebenza ezibucayi.
Ukuwenza kubanda ibhere. Ine-springback ephezulu. Uma uyigoba, uyigoba ngokweqile ethuluzini futhi uthemba ukuthi izobuyela ekucacisweni. Kumajamo ayinkimbinkimbi, ukubumba okushisayo kuvame ukuba ukuphela kwendlela enengqondo. Senze imibhobho ethile yokunweba eshidini elincanyana. Umzamo wokuqala obandayo wasebenza kakhulu kangangokuthi walahlekelwa i-ductility futhi waqhekeka ngesikhathi sokuhlolwa kwamanzi. Isixazululo kwakuwukwakha cishe ku-1200°F, okwakudinga ukulawulwa okukhethekile kwamathuluzi nokulawula umkhathi ukuze kuvinjwe i-oxidation eyeqile. Kwakuyindaba yakudala yezinto ezilawula yonke indlela yokukhiqiza.
Yingakho imodeli yesevisi ephelele yabanye abahlinzeki bempahla ibalulekile. Uma umthombo owodwa, njengalokhu okukhulunywe ngakho ngenhla QSY, uyakwazi ukuyiphatha ukutshala imali ukwakha umumo oseduze nenethi bese ulandela ngokunembayo CNC imishini ku-alloy efanayo, aqeda izingozi eziningi zokusingatha, ukufaneleka, kanye nokulandeleka. Awuthumeli ukusakaza okungahluziwe esitolo semishini esingase singaqondi i-idiosyncrasies yakho. Ulwazi luhlala ku-ecosystem eyodwa.
Izindleko vs. Inani: Isibalo Sangempela
Asikhulume singagwegwesi: N06625 kuyabiza. Okuqukethwe kwe-nickel ne-niobium kuyakubona lokho. Ukulungiswa akuveli ekubeni 'kumnandi ukuba' noma 'i-premium.' Iphuma ekuhlaziyweni okuphelele kwezindleko zobunikazi okufaka phakathi isikhathi sokuphumula, ukushintshwa komsebenzi, nezici zokuphepha. Sithathe indawo ye-carbon steel quench tank agitator shaft neyodwa eyenziwe kusuka ku-625. Eyensimbi yahlala izinyanga eziyi-8 endaweni ye-caustic, egcwele i-chloride. I-625 shaft isasebenza ngemuva kweminyaka eyi-7. Izindleko zangaphambili bezingu-5x, kodwa ukugwema ukuvala shaqa okuhlanu esikhundleni sakho kuzikhokhele ezinyangeni eziyi-18. Inani likusevisi engapheli, hhayi umaka wentengo wokuqala.
Kodwa-ke, kufanele ugweme ukufaka isicelo ngokweqile. Akuyona impendulo njalo. Kundawo emonaka kakhulu lapho i-2205 duplex stainless steel izokwanela, ukusebenzisa i-625 kuyisinyathelo esingalungile somnotho futhi kwesinye isikhathi sobuchwepheshe. I-Duplex inamandla aphakeme, ngakho-ke ungase usebenzise amancane awo, futhi ngokuvamile kulula ukuyishisela. Ukukhetha kudinga ukubuyekezwa okungenantshisekelo kokuchayeka kwamakhemikhali kwangempela, amazinga okushisa, izingcindezi, kanye neminyaka yokuphila oyifunayo. Ngibe yingxenye yezikhathi zobunjiniyela benani lapho saphikisana khona ngempumelelo ukuthi sehliselwe phansi ukusuka ku-625 ukuya ku-super duplex, songa u-30% ezindlekweni ezibonakalayo ngaphandle kokulahlekelwa ukusebenza kwalelo cala elithile.
Lokhu kubuyisela emuva kulwazi lomqambi. Uzakwethu omuhle akagcini nje ngokuthi 'yebo' ku-speclue yempahla. Bayakubuza. Bangase babheke umdwebo wengxenye engu-625 bese bebuza, 'Ibonani? Usuyicabangile ingxubevange engu-X yalesi sigaba?' Leyo nkulumo-mpendulwano, ezalwe ngesipiliyoni sokwenziwa ngezandla ngempumelelo kanye nokwehluleka kwalezi zinto zokwakha, yilapho ubunjiniyela bangempela senzeka khona. Kungumehluko phakathi kokuthenga ucezu lwensimbi nokwakha isixazululo.
Ephetha Ngaphandle Komnsalo Kuwo
Ngakho, N06625. Kuyihhashi elisebenzayo, kodwa elinolaka. Inani lalo alilona imvelo; kutholakala kuphela ngokwenziwa okunembe, okunolwazi kanye nokusetshenziswa okufanele. Amaphepha edatha akunikeza imingcele, kodwa ulwazi lokuthi ihamba kanjani ngaphansi kwethuluzi, ukuthi ligeleza kanjani libe yisikhunta, ukuthi lisabela kanjani ngaphansi kwethoshi - yilokho ubuciko. Yilokho okuhlukanisa ingxenye esebenzayo kwethembekile.
Uma ubheka abahlinzeki, lobo buciko buyimethrikhi eyinhloko. Bangakwazi yini ukuxoxa ngezinselele zokushisa kwe-interpass kuma-weld amaningi? Ingabe banayo indlela ebhaliwe yokunciphisa ukuqina komsebenzi ngesikhathi somshini? Ezingxenyeni zabalingisi, ingabe zibonisa ukulawula phezu kwawo wonke umjikelezo wokuncibilika kokuthulula-ukuqina? Lezi yizimpawu ezibonakalayo zekhono.
Ekugcineni, ukusebenza ngale ngxubevange kuyinqubo yokufunda eqhubekayo. Yonke iphrojekthi yengeza iphoyinti ledatha. Ukugijima okuphumelelayo kukufundisa okusebenzayo. Ukwehluleka, okuvame ukuba nguthisha onamandla kakhulu, kukubonisa lapho imingcele efihliwe ikuphi. Umgomo uwukwakha lowo mtapo wolwazi wangaphakathi, ukuze ngesikhathi esilandelayo lapho i-N06625 ifika ngaphesheya kwedeski, ukwahlulela kwakho kokuthi uyicubungula futhi uyisebenzise kanjani ibukhali kancane, igxile kakhulu, futhi isebenza kangcono. Leso isizinda sangempela sochwepheshe ngale nto.
