Uma abantu abaningi bezwa 'insimbi engagqwali elahlekile', babona ingxenye engenasici, ecwebezelayo ephuma ebhukwanani. Lowo umbono oyiphutha wokuqala. Iqiniso limbi kakhulu, linamaphutha amaningi, futhi libandakanya ukuxazululwa kwezinkinga njengoba lenza inqubo. Akukhona nje ukwenza umumo; imayelana nokulawula okuguquguqukayo okuyikhulu ukuze uthole ingxenye esebenzayo ehlangabezana neshidi elicacisiwe eligcwele izinombolo—amandla aqinile, ukumelana nokugqwala endaweni ethile, izilinganiso zokucindezela. Ingxenye 'engenasici' cishe inhlanzi ebomvu; Ibanga libaluleke ngaphezu komndeni. 304, 316, 17-4PH—nganye iziphatha ngendlela ehlukile uma uyithela ku-1500°C egobolondweni le-ceramic. Kulapho umsebenzi wangempela uqala khona.
Umdlalo Wegobolondo: Konke Kusesikhunjeni
Ake sikhulume ngegobolondo. Lokhu akusona nje isikhunta sikakhonkolo. Kuyisivikelo se-ceramic enezendlalelo eziningi esakhiwe ngokucwilisa amaphethini we-wax kuma-slurries nama-stuccos. Inani lamajazi, isikhathi sokumisa phakathi kwalelo nalelo, umswakama ozungezile—ukuthola okungalungile futhi igobolondo lingahle liqhekeke ngesikhathi sokuxosha (ukwehluleka okumangalisayo, okungcolile) noma aliqinile ngokwanele ukuqukatha insimbi encibilikisiwe, okuholela kulokho esikubiza ngokuthi 'ukuphela'. Ngibone isihlahla se-wax esifanelekile sendlu yephampu sibhidlikile ngoba ijazi lesithathu loma ngokushesha kakhulu evikini elomile ngokungafanele isizini. Igobolondo lalibukeka lilihle, kodwa linemifantu emincane. Phakathi nokuthela, kwakufana nesisefo. Ukulahlekelwa okuphelele.
Yilapho isipiliyoni esivela esitolo sithanda khona I-Qingdao Qiangsenyuan Technology Co., Ltd.(QSY) imibukiso. Ngaphezu kweminyaka engama-30 ukutshala imali, baye bafaka lolu lwazi lwenqubo ohlelweni lwabo. Alikho encwadini yezandla; kuzwakala kuchwepheshe ukuthi udaka luconsa kanjani, ukubukeka kwegobolondo elomile. Iwebhusayithi yabo, tsngtaocnc.com, ibala ukubunjwa kwegobolondo njengokukhethekile okubalulekile ngesizathu. Kuyisinyathelo esiyisisekelo. Ungaba nengxubevange engcono kakhulu, kodwa uma igobolondo lakho lehluleka, uvele uthele insimbi ebizayo phansi.
Inqubo ye-dewaxing ngokwayo ibalulekile. Abaningi bacabanga ukuthi uvele uncibilikise i-wax. Izitolo eziningi ezinevolumu ephezulu zisebenzisa ama-autoclaves noma i-flash dewaxing ene-high-pressure steam. Ukushaqeka okushisayo egobolondweni kukhulu. Uma isistimu yegobolondo ingafani kahle nalesi sinyathelo, izophuka. Lokhu sikufunde kusenesikhathi ngendikimba eyinkimbinkimbi, enezindonga ezincane. Kushintshelwe kokuhlukile okuphikisayo kwejazi eliyinhloko, inkinga ixazululiwe. Yilezi zinguquko ezincane, ezingeni lempahla ezihlukanisa ingxenye esebenzisekayo nezilahliwe.
Ukukhathazeka Kwebanga: Ukukhetha I-Stainless Elungile
Ukucacisa insimbi engagqwali kufana nokungena esitolo sehardware bese ucela ithuluzi. Akunangqondo ngaphandle komongo. Okokufakwa olwandle, i-316 iyinto ezenzakalelayo yokumelana nokugqwala okuthuthukisiwe kwe-molybdenum. Kepha ngike ngaba namakhasimende aphikelela ku-316 ngesicelo sangaphakathi, esomile lapho i-304 ibiyokwanela futhi ishibhile. Kufanele uhlehle, ufundise.
Bese kuba namabanga aqinisa imvula njengo-17-4PH. Kuhle ngokuqina okuphezulu, okuyinkimbinkimbi insimbi engagqwali elahlekile izingxenye zokuphonsa i-wax njengabakaki be-aerospace. Kodwa umjikelezo wokwelapha ukushisa ngemva kokusakazwa awuthetheleli neze. Amadigri ambalwa ekushiseni izinga lokushisa lokuguga, futhi awukutholi ubulukhuni be-RC obufunayo. Ingxenye ibukeka ifana kodwa izohluleka ekuhloleni. Ukukhuluma kwe-QSY ngokusebenza ngama-alloys akhethekile afana ne-nickel-based kungitshela ukuthi bayakuthola lokhu. Lezo zinto zinolaka nakakhulu. Inqubo yokulingisa iyingxenye yokuqala yohambo; iphrothokholi eshisayo ingeyesibili.
Ngikhumbula iqoqo lezindikimba zamavalvu ku-CF8M (okulingana no-316). Baphumelele wonke amasheke obukhulu kodwa bahluleka ukuhlolwa okubalulekile kwe-pitting corrosion yeklayenti embonini yamakhemikhali. Inkinga? Okuqukethwe kwe-Delta ferrite. Izinga lokupholisa kugobolondo belicime kancane, lishintsha i-microstructure. Kwakudingeka silungise izinga lokushisa lokuthulula futhi siguqule izici zokuvikela zegobolondo—sengeze ungqimba lwefibre ye-ceramic eyengeziwe ezingxenyeni ezisindayo—ukuze kwehlise ukupholisa. Inkinga ilungisiwe, kodwa kwathatha ukuhlaziya okusansimbi ukuze kutholwe umsuka wayo. Ingxenye yayibukeka iphelele emehlweni.
I-Dimensional Tightrope: As-Cast vs. Machined
Enye yezindawo ezinkulu zokuthengisa ze-wax elahlekile wukwakheka komumo we-net-net. Igama elingukhiye lithi 'seduze.' Noma ubani othembisa ukubekezelela okungu-±0.1mm kuzo zonke izingxenye zengxenye esakazwayo welula iqiniso. Kufanele uphathe okulindelekile. I-shrinkage iyabikezelwa kodwa ayifani ngokuphelele. Isici eside, esizacile sizoncipha ngokuhlukile kunebhulokhi enkulu ekulingiseni okufanayo. Iphethini iyafa ngenxa yalokhu, kodwa kuhlale kunokuhluka okuncane.
Yingakho imodeli yesevisi egcwele yezinkampani ezihlanganisa ukusakaza kanye CNC imishini kunengqondo kakhulu. Kwa-QSY, babala kokubili njengezinsizakalo ezibalulekile. Uphonsa ingxenye ukuze uthole i-geometry eyinkimbinkimbi engu-90% lapho, ngesitokwe esivulekile ezindaweni ezibucayi zokukhwelana, izintambo, nobuso obuvaliwe. Bese, uyilungisa kumshini wokugaya we-CNC noma i-lathe bese ushaya ubukhulu obunembile. Ukuzama ukufeza lokho kubekezelela ngokuqondile kusuka esikhunjeni kuwumsebenzi weziwula futhi kubiza kakhulu mayelana namathuluzi nokulahlekelwa kwesivuno.
Sake sazama ukufaka igiya elinamazinyo asebenzayo, asakazwayo ukuze songe ezindlekweni zomshini. I-prototype yayilungile, kodwa ekukhiqizeni, ukuhlukahluka okukhulayo kuphrofayela yamazinyo kuzo zonke izingxenye eziningi kwakungamukelekile. Siyini isifundo? Yazi imikhawulo yenqubo. Vala igiya lingenalutho, mshini amazinyo. I-synergy phakathi kwalezi zinqubo ezimbili—ukutshala imali ukuze kube yinkimbinkimbi, i-CNC yokunemba—ilapho inani langempela lidalelwa khona unjiniyela.
Abashayeli Bezindleko Ezifihlekile: Ukungena, Ukukhiqiza, kanye Nokuqeda
Ukucaphuna ingxenye ye-wax elahlekile akusho nje isisindo. Ingxenye eqediwe engu-1kg ingase iqale njengesihlahla sengcina esingu-3kg. I-gateing kanye nesistimu yomgijimi, ehambisa insimbi, inkulu futhi iyanqanyulwa futhi igaywe kabusha. Isivuno sakho (ingxenye eqediwe yesisindo uma iqhathaniswa nesisindo sensimbi esitheliwe) siyisici esikhulu sezindleko. Idizayini yokungena esebenza kahle, evame ukulingiswa ngesofthiwe manje, ibalulekile. Isango eliklanywe kabi lingabangela isiyaluyalu, ukuvaleka komoya, kanye nokushwabana kwe-porosity khona kanye esigabeni esibalulekile sengxenye yakho.
Bese kuba khona ukuqeda. Ngemuva kokunyakaziswa nokusikwa, unengxenye embozwe izinsalela zamagobolondo e-ceramic kanye nezinti zamasango amaholoholo. Idinga ukuqhunyiswa kwesibhamu, ukugaywa, mhlawumbe ukuhlanzwa kwamakhemikhali (ukukha nokudlula ukuze kungabi nebala ukuze kubuyiselwe ungqimba lwe-oxide olumela ukugqwala). Lokhu kudinga abasebenzi futhi kuvame ukunganakwa ekuhleleni kokuqala. Ingxenye enamaphaseji amaningi angaphakathi iyiphupho elibi lokuhlanza. Ngichithe amahora amaningi ngikhetha amazinyo namajethi amanzi anengcindezi ephezulu ngizama ukususa i-ceramic ehlanganisiwe esiteshini sokupholisa. Manje, siklama ukuhlanzeka kusukela ekuqaleni.
Lo msebenzi wesigaba sokugcina yilapho imisebenzi eminingi yezandla ihlala khona. Amarobhothi okugaya azenzakalelayo mahle kumomo ojwayelekile, kodwa izindlu zamavalvu eziyinkimbinkimbi, ezimise okwemvelo? Lokho kuvame ukudinga umshini wokugaya onekhono onesandla esiqinile ukuze uhlanganise izindawo ngaphandle kokugoqa isisekelo sensimbi. Kuwubuciko.
Lapho Ihamba Kahle: Inkokhelo
Naphezu kwekhanda elibuhlungu, lapho ubamba okuphelele, okuyinkimbinkimbi insimbi engagqwali elahlekile wax casting ingxenye-awuthi, i-impeller ye-turbine yesiqephu esisodwa esinama-blade agobile okungeke kwenzeke ukuthi umshini usuka kokuqinile-kuyafaneleka. Ubuqotho bengxenye engenawo ama-welds noma amalunga, ikhono lokusebenzisa ama-alloys asebenza kahle ngamafomu ayinkimbinkimbi, isiphetho esihle kakhulu esivame ukudinga ukulungiswa okuncane kokunameka.
Kuyinqubo edinga ukuhlonishwa kwalo lonke iketango, kusukela ekujovweni kwe-wax kuya ekuhlolweni kokugcina. Awukwazi nje ukuba yi-metallurgist noma i-Foundry guy noma i-machinist. Udinga ukuqonda ukuthi isigaba ngasinye sikhuluma kanjani nesinye. Lowo umbono engiwuthola emisebenzini efana nale echazwe kuyo tsngtaocnc.com. Ukuhlala kwabo isikhathi eside kuphakamisa ukuthi baye bazulazula kulezi zinselele ezixhumene kuzo zonke izinto kusuka kunsimbi ekhonjiwe kuya kuma-nickel alloys. Ubungcweti bangempela abukho ohlwini njengesevisi; izingcingo zokwahlulela eziqoqiwe ezenziwa ezinkulungwaneni zokuthululwa, ezinquma ukuthi inqubo yokulungisa kanjani okulandelayo.
Ngakho-ke ngesikhathi esilandelayo lapho uhlola ukulingisa, bheka udlule ukukhanya. Cabanga ngegobolondo ebeliyibambile, indlela eshisayo eyalithatha ukuze liqine, isitokwe esisele sokusebenza ngomshini, nomsebenzi wezandla owayihlanza. Leyo yindaba yeqiniso yengxenye. Okunye wukumaketha nje.
