Wonke umntu uthetha nge-Inconel 625 ngathi yimbumbulu yomlingo ye-corrosion yobushushu obuphezulu. Yiyo, ubukhulu becala. Kodwa ukuba uye wayenza ngoomatshini, wayidibanisa, okanye wayikhuphela kuyo, uyazi ukuba umlingo uza nerhafu enkulu. Asiyo 'super alloy' kuphela; kukuzibophelela.
IHype vs. ILathe
Uyalibona iphepha elikhethekileyo: ukumelana ne-oxidation emangalisayo ukuya kuthi ga kwi-1800 ° F, amandla amakhulu, yadda yadda. Into abangayithethi kakhulu yindlela esebenza ngayo-nzima. Uthatha isixhobo esihle, esibukhali usike kuyo Ikhoneli 625, fumana i-chip entle ihamba, kwaye ngequbuliso awusayi kusika-uhlikihla kwaye uvelise ubushushu obaneleyo ukuthambisa isixhobo sakho, hayi i-workpiece. Umphezulu uba nzima ngakumbi kunaxa wawuqala. Ndibone ukuseta okusebenze ngokugqibeleleyo kwi-316L kusandula ukudilizwa. Udinga oomatshini abaqinileyo, iijiyometri zehariki ezilungileyo, kunye nomthambo wokubaleka kancinane ngesondlo esinzima, esingaguqukiyo. Ukuthandabuza kukufa.
Ukupholisa akunyanzelekanga, koko kucwangciswe ngobuchule. Udinga uxinzelelo oluphezulu ukuze ufikelele kumda wokusika ukwaphula umqobo wobushushu kwaye uhlambe iitshiphusi. Ukuba iitshiphusi ziphinda zisike, ngumdlalo uphelile ukugqiba kunye nesixhobo. Ndikhumbula umsebenzi apho sasisenza umzimba omkhulu wevalvu ukusuka a Ikhoneli 625 ukuphosa. Sasicinga ukuba siyifowunele, kodwa kwipasi yokugqibela ekruqulayo, itshiphu engumtya ejijelwe kwibha. Ishiye i-galling mark kwi-ID kangangokuba kwafuneka siyilahle loo ndawo. Isifundo se-$ 20,000 kulawulo lwetshiphu.
Nokukhangela isitokhwe okanye imiba yokuphosa. Ayingawo onke ama-625 adalwe alinganayo. Isenzo sokunyibilika, ukwakheka kweenkozo-kuchaphazela ukusebenza ngokumangalisayo. I-porous casting iya kutshabalalisa izixhobo ngokukhawuleza kunokuba unokuthi ufake ibakala. Ufuna umthengisi oyiqondayo le nto ukusuka kwi-Foundry up, hayi nje indawo yokugcina impahla enesarha yebha.
Ukuwelda: Apho Uvavanyo lweKhemistri lwenzeka khona
Ukuwelda Ikhoneli 625 incinci malunga nokudibanisa kwaye ngaphezulu malunga nokugcina iimpawu zayo. Utshaba olukhulu yimvula ye-carbide kwindawo echaphazelekayo ngubushushu (HAZ). Uyifumana ishushu kakhulu ixesha elide, kwaye i-chromium carbides yenza kunye nemida yeenkozo. Ngequbuliso, izinto zakho ezimangalisayo ezikwaziyo ukumelana nomhlwa zinendlela encinci entle yokuhlaselwa kanye ecaleni kwe-weld. Ijongeka ilungile, kodwa iya kusilela kwinkonzo.
Udinga ulawulo oluluqilima kwigalelo lobushushu. I-amperage ephantsi, amaso anqabileyo, iindawo ezininzi zokumisa ukuyiyeka ipholile. Kwaye ngokuqinisekileyo kufuneka usebenzise i-filler echanekileyo-ngokuqhelekileyo i-625 yentsimbi yokuzalisa ngokwayo okanye ngamanye amaxesha i-ERNiCrMo-3. Ukusebenzisa isigcwalisi esingenasici kuba siluncedo kukungaphumeleli okuqinisekisiweyo. Ndiyibonile imisebenzi yokulungisa kwizindlu zokumpompa apho umntu wenza kanye loo nto. I-weld ibambe uxinzelelo, kodwa yaqhekeka kwi-corrosion yoxinzelelo lwe-chloride kwiinyanga ezintandathu. I-post-mortem ibonise umgca ocacileyo apho i-chemistry itshintshile.
Ukucoca kwangaphambili kunye nasemva kwe-weld kuyinkolo. Akukho grisi, akukho sulfure, akukho nto. Nakuphi na ungcoliseko lufunxwa kwi-weld pool kwaye yenze izigaba ezinqabileyo. Linqanaba lokucoceka elivakalelwa ngotyando.
I-Casting Conundrum
Ukufumana ukuphoswa kwesandi Ikhoneli 625 bubugcisa. I-alloy inoluhlu olude lokukhenkceza, nto leyo eyenza ukuba ithande ukukrazula i-micro-porosity kunye nokukrazuka okushushu ukuba i-gating kunye nokunyuka akugqibelelanga. Awunakuvele uyigalele njengentsimbi etyhidiweyo. I-Foundry idinga ukulawula ubushushu bokubumba, izinga lokugalela, yonke into.
Apha kulapho amava kumashumi eminyaka abaluleke ngokwenene. Inkampani efana Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), kunye neminyaka yabo engama-30 kwiqokobhe kunye ne-investment casting, ngeyakha olo lwazi lukhethekileyo. Bayayazi indlela yokuqhelanisa izindlu zeiturbine ezintsonkothileyo kumngundo ukunciphisa uxinzelelo lokucutheka, okanye ukuyilwa njani inkqubo yokutya yeflange eshinyeneyo etshintshela kudonga olucekethekileyo. Lulwazi lwezizwe ongenakulufumana kwincwadana yemigaqo.
Imvelaphi yabo ku ialloys esekwe nickel kwaye CNC machining ngundoqo. Ayenzi nje imilo; bacinga ngendlela inxalenye yokugqibela eza kwenziwa ngayo ngoomatshini kwaye idityaniswe. Ngaba bashiya isitokhwe esaneleyo kubuso obubalulekileyo? Ngaba babeka umgca wokuhlukanisa ukunciphisa umsebenzi wokugqiba kwindawo yokutywina? Loo ngqondo idibeneyo igcina ithamsanqa ezantsi komsinga.
Iza Kuyisebenzisa nini (Kwaye xa Uhamba nini)
Ke ngayo yonke le ntloko, kutheni uyisebenzisa? Lula: xa kungekho enye into ephilayo. Imimandla yamanzi olwandle enomxholo ophezulu wekloridi. Iinkqubo ze-flue gas desulfurization. Izibophelelo zobushushu obuphezulu ezivezwe kwirhasi emuncu. Yinto engagqibekanga kumacandelo abalulekileyo, angashukumiyo kwi-aggressive chem/petrochemical setting.
Kodwa ndiye ndabuyela umva kwii-specs ngaphambili. Umxhasi wayefuna ngokupheleleyo Ikhoneli 625 manifold kwinkonzo yeasidi ephilayo ephakathi kwi-300°F. Yi-overkill leyo. Siqhube uhlalutyo lweendleko zomjikelo wobomi sithelekisa ne-moly duplex ephezulu. I-duplex iphumelele kwiindleko zokuqala, iindleko zokwenziwa, kwaye yayiza kuhlala iminyaka engama-20 yobomi boyilo. Ngamanye amaxesha iinjineli zicacisa i-625 kuba ikuluhlu lwezinto ezikwaziyo ukubola, kungekhona ngenxa yokuba lukhetho loqoqosho. Inxalenye yomsebenzi kukwazi ixesha lokucebisa ukuhla.
Omnye umzuzu wokuhamba kuxa uyilo luneekona ezibukhali okanye lufuna itoni yobuchwephesha, ubuchwephesha obunzulu. Uxinzelelo olubangelayo lusenokungafanelanga. Ngamanye amaxesha, ukuyila ngokutsha icandelo ukuze libe nobubele bokwenza izinto kubukrelekrele kunokulwa nezinto.
Ikhonkco loNikezelo lwehlabathi lokwenyani
Awuvele u-odole i-Inconel 625. Ufanelekela umthombo. Ukuphosa, ujonge isiseko esinokubonelela ngeecerts eziphathekayo ezibuyela emva kubushushu, kunye nekhemikhali epheleleyo kunye noomatshini. Ungade uchaze eyakho iprothokholi yonyango lobushushu-isisombululo se-annealing kwi-2150 ° F ±25 ° F elandelwa kukucinywa okukhawulezileyo ngumgangatho wokunyibilikisa ezo carbides ziyingozi.
Kwiqabane lenkonzo epheleleyo, ufuna umntu ophethe lonke uhambo. Ukujonga umda we-QSY-ukusuka kwi-investment casting ye ialloys ezikhethekileyo ukuya kwi-machining ye-CNC yokugqibela-eyiphelisa ininzi yokukhomba iminwe. Ukuba kukho isiphene efunyenwe ngexesha machining, phezu kwabo ukuyisombulula, hayi ingxoxo phakathi Foundry kunye ivenkile machine. Oko kuqhubela phambili kukhulu kwizinto ezintsonkothileyo, ezinexabiso eliphezulu.
Amaxesha okukhokela made. Izinto ezilungileyo azihlali eshelufini. Umthamo olungileyo wesiseko ubhukishwe. Nabani na othembisa ukujika ngokukhawuleza ukusika iikona, kuqinisekisiwe. Cwangcisa iinyanga, kungekhona iiveki.
Ekugqibeleni, Ikhoneli 625 sisixhobo esimangalisayo esifuna intlonipho. Asiyonto yorhwebo; yintsebenziswano phakathi komyili, i-metallurgist, i-Foundry, kunye ne-machinist. Lungelelanisa elo khonkco, kwaye ufumana icandelo elisebenza ngaphandle kwesityalo esifakelwe kuso. Uphoswa likhonkco, kwaye ufumana i-paperweight ebiza kakhulu. Umahluko kukubucukubhede, iinkcukacha ezingathandekiyo zendlela eyenziwe ngayo.
