Urareba hejuru 'ishoramari casting inconel 718' ukabona umwuzure wamakuru: 1400 ° F imbaraga zidasanzwe, guturika kwiza cyane, kurwanya okiside kugeza kuri 1300 ° C. Icyo utabonye nukwumva igikonoshwa cyacitse kuri dewax, cyangwa kiriya gihe cyo kurohama mugihe raporo ya NDT yerekana ibimenyetso bidakomeye mugice gikomeye. Urupapuro rwerekana neza nkikibazo cyakemutse. Ntabwo aribyo. Numushyikirano na physics, kandi ibyuma akenshi bifite ijambo ryanyuma.
Amavuta Atari Ikibazo. Inzira ni.
Umuntu wese akosora kuri Inconel 718 ubwayo - ibihimbano, ibyemezo. Ariko muri gushora imari, ibinyomoro nibikoresho gusa. Ikibazo nyacyo ni urugendo ruva mu gishashara rugana kurasa. 718 ifite ingeso mbi yo gukora icyiciro cya Laves, ibyo bivangavanga intermetallic, niba gukomera bitagenzuwe neza. Ntushobora kuyisuka gusa nka 304 idafite umwanda. Ibiranga ubushyuhe biratandukanye. Kugabanuka biratandukanye. Uburyo yitwara hamwe na ceramic shell iratandukanye.
Ndibuka icyiciro cyicyiciro cya turbine. Geometrie yari ifite urukuta ruto ariko rukomeye. Twabonye chimie itunganye, ariko casting yananiwe kugerageza guhagarika umutima. Ikibazo? Twakoresheje sisitemu isanzwe ya shell-isanzwe ihuriweho na silika yo mu maso. 718, kuri ubwo bushyuhe bwinshi, yabyitwayemo bihagije kugirango itere imbibi zubutaka. Ntabwo yari inenge nini, ariko mugihe cyo gukuza, washoboraga kubona embrittlement. Urupapuro rwihariye rwa shell ntabwo rwavuze iyo mikoranire. Wiga ko inzira igoye.
Aho niho imyaka 30 yububiko iduka Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) ije gukina. Ntabwo ari ukugira itanura gusa; byerekeranye no kwibuka kurwego rwibikonoshwa bikorana na nikel ishingiye kuri alloys. Urubuga rwabo, tsingtaocnc.com.
Igishashara, Igikonoshwa, n'imbyino yo Kwagura Ubushyuhe
Reka tuvuge kubyerekeye igikonoshwa. Kuri 718, ukunze kwimuka kure ya sisitemu isanzwe ishingiye kuri silika. Twimukiye kuri zircon ishingiye ku ikoti yo mu maso hamwe na backup ya alumina-silikate. Kubera iki? Coefficient yo kwagura ubushyuhe. Ukeneye igikonoshwa kugirango uhangane nubushyuhe bwumuriro wicyuma cya ~ 1500 ° C ariko nanone kugirango ugire intege nke kuburyo wakurwaho nyuma utifashishije uburyo bwubukanishi bushobora gukomeretsa hejuru. Nigikorwa cyo gushyira mu gaciro.
Intambwe yo gutesha agaciro irakomeye. Hamwe nicyuma, autoclave dewaxing iroroshye. Hamwe nimikorere ihanitse cyane nka 718, aho ibishashara bishobora kuba binini cyangwa bikagira ibice binini, ushobora guhura nigikonoshwa cyaturutse kumuvuduko wihuta wihuta niba uruziga rudahujwe. Twigeze gutakaza igiti cyose cyibumba kuko cycle ya autoclave yari ikaze cyane. Igikonoshwa cyasaga neza, ariko imisatsi yamenetse ireka ibyuma byinjira, bigakora amababa manini kandi byangiza uburinganire. Noneho, dukunze gukoresha uburyo buhoro, flash dewax kubikorwa bikomeye 718, nubwo byongera igihe.
Igikoni cyo guteka, cyangwa gushyushya, nubundi guhamagarwa. Suka mugikonoshwa gikonje cyane, kandi ushobora guhura nibibazo. Birashyushye cyane, kandi urashobora gukabiriza ibyuma-shell reaction hanyuma ukongerera ingano ingano. Kuri complexe Inconel 718 guta, mubisanzwe tugamije igishishwa gishyuha hafi ya 1000 ° C, ariko ibyo nyuma yigihe kirekire, gahoro gahoro kugirango wirukane ibirindiro byose tutiriwe duhungabanya ceramic. Ntabwo ari umubare usanga mu gitabo; nimwe ugezeho nyuma yo kunanirwa gusuka.
Kwinjira, Kugaburira, no Gushakisha Amajwi
Kugaburira gushora imari inconel 718 ni uburyo bwubuhanzi. Ikirere cyacyo cyo gukonjesha ntabwo ari kinini nka superalloys, ariko iracyakeneye ubuntu, bushyushye. Sisitemu yo kwinjirira igomba kuba yarateguwe kugirango igabanye imivurungano - imivurungano iganisha kuri oxyde, yica ibice bigize ikirere. Dukoresha kwigana mudasobwa ubungubu, ariko kwigana kare byari byiza cyane. Bagaragaza kuzura no kugaburira neza. Gukina kweli kwaba kugabanya ububobere muri flangine.
Isomo? Kwigana ni umuyobozi, ntabwo ari umuhanuzi. Uracyakeneye kurenza-injeniyeri ibiryo 718.Kenshi dukoresha amaboko ya exothermic feeder amaboko yabugenewe ya nikel alloys kugirango riser ishyushye igihe kirekire. Nubwo bimeze bityo, rimwe na rimwe ugomba kongeramo ubukonje buto ahantu hateganijwe kugirango uhatire gukomera kugana kuri riser. Nuburyo bwitondewe bwo gusuzuma no gusubiramo. Umufatanyabikorwa nka QSY, hamwe namateka yabo yimbitse muri Igikonoshwa na gushora imari, mubisanzwe ifite isomero ryibishushanyo mbonera byerekana imiryango itandukanye, ni intangiriro nini.
Post-casting, amarembo na risers ninyamaswa yo gukuraho. 718 akazi-gakomeye byihuse bidasanzwe. Niba ugerageje kubona cyangwa kuyisya nk'icyuma cya karubone, uzatwika ibyuma kandi birashoboka ko bitera ibibazo. Gukata amazi meza cyangwa gukata bande yihariye hamwe nibiryo bikwiye n'umuvuduko ni ngombwa. Nigiciro nigihe kinini benshi bibagirwa kubara mumagambo yabo ya mbere.
Kuvura Ubushyuhe: Aho Ibintu Byakozwe (cyangwa Bimenetse)
Nibisanzwe bikunze kunanirwa murwego rwo gutanga. Urabona neza, ijwi gushora imari. Noneho urayangiza mu ziko ritunganya ubushyuhe. Kubikorwa 718, ubuvuzi nibisanzwe: kuvura igisubizo n'imyaka. Kubakinnyi 718, biratandukanye. Urimo ukorana na microstructure, gutandukanya, hamwe nibishobora kuba byiciro bya Laves.
Imyitozo isanzwe nubuvuzi bwa homogenisation mbere - gufata hafi 1100 ° C kumasaha kugirango ushongeshe imiraba ndetse no hanze yabigize. Simbuka ibi, cyangwa ubikore nabi, kandi gusaza gukurikira ntibizatanga gamma ikenewe inshuro ebyiri imvura igwa kimwe. Igisubizo? Imiterere yubukanishi idahuye. Nabonye casting yatsinze UT ariko ikananirwa kugeragezwa tensile kuberako uburyo bwo kuvura ubushyuhe bwari bushingiye kubintu byahimbwe.
Igenzura ry'ikirere ntirishobora kuganirwaho. Vacuum cyangwa argon. Umwuka wa ogisijeni uwo ari wo wose uboneka mu gihe cy'ubushyuhe bwo hejuru bwa homogenisation bizatera okiside ikabije ndetse no kugabanuka kw'ibintu bikomeye bivanga nka chromium. Ntabwo uri gupima hejuru gusa; urimo guhindura metallurgie yuruhu. Ibi twabimenye nyuma yicyiciro gisohotse mu itanura ryitwa ko ari inert hamwe nubutaka bwijimye. Gukora imashini byagaragaye. Ikidodo cy'itanura cyari cyangiritse. Noneho, dukoresha ama coupons yubuhamya hamwe numutwaro wose kugirango tumenye ko ikirere cyari gifite isuku.
Imashini n'inzitizi yanyuma
Aha niho QSY ihuriweho na moderi ya gushora imari na Imashini ya CNC yerekana agaciro kayo. Gukora imashini 718 ninyamaswa zitandukanye no gutunganya mugenzi we wakozwe. Gukomera birashobora kuba bidahuye, kandi micro-shrinkage ihishe cyangwa ibiyirimo irashobora kumenagura urusyo rwamadorari 200 mukanya.
Urufunguzo ruhamye, rushyizweho kandi rugabanya kugabanuka. Ntabwo ugiye gukora imashini yihuta hano. Byerekeranye no gutinda kandi bihamye, hamwe na coolant nyinshi yo gucunga ubushyuhe no gukumira imirimo ikomera hejuru. Igikoresho cya geometrie ni ingenzi-rake nziza, impande zikarishye. Ibikoresho bidahwitse gusa gusiga ibikoresho no kubyara ubushyuhe bukabije.
Icy'ingenzi cyane, gahunda yo gutunganya igomba gutegurwa hitawe kumagambo asigaye ya casting. Urashobora gukenera gukomera, hanyuma kugabanya impagarara, hanyuma kurangiza imashini. Niba ugerageje gukuramo byose muburyo bumwe, igice kirashobora guturika cyane nyuma yo kudafungurwa, bikagira akamaro. Nibiganiro byanyuma, byitondewe kugirango uhishure igice cyuzuye neza uhereye kuri casting ikaze.
None, Ikiguzi nyacyo ni ikihe?
Iyo usuzumye uwaguhaye isoko gushora imari inconel 718, ntabwo ugura pound yicyuma gusa. Urimo kugura amateka yabo yo kugenzura amateka, imyumvire yabo ya metallurgjiya, hamwe nibibazo byabo byo gukemura ibibazo. Amagambo ahendutse akenshi ava mumaduka ayifata nkibyuma bitagira umwanda. Bazatanga igice gisa neza ariko cyananiwe kugerageza cyangwa mumurima.
Agaciro k'umushinga washyizweho ni mukwirinda ibyo byago, gahunda-itinda kunanirwa. Nukumenya ko igishushanyo runaka cy irembo gikora kuri geometrie yihariye, cyangwa ko ifu yinshi ya ceramic ikenera guhindagurika muburyo bworoshye bwa 718.Ibi ntabwo ari ibicuruzwa. Birasa cyane na bespoke metallurgy. Igiciro nyacyo nicyizere ko igice kizakora mubihe urupapuro rwerekana neza. Kandi ibyo byiringiro byubakiye ku rufatiro rwamakosa yashize, amasomo yize, hamwe nubutsinzi bukomeye, ubwenge bwububiko.
