Xa abantu abaninzi besiva 'i-silica sol precision casting', baba nomfanekiso wecandelo elingenasiphako, elimile, elilungele ukuhamba. Yeyona nto ifanelekileyo yokuthengisa. Inyani, ukugaya imihla ngemihla, kukuxoxisana rhoqo kunye nekhemistri ye-colloidal, isicelo se-stucco, kunye ne-physics engaxoleliyo yokuqinisa isinyithi. Akunjalo nje ngokwenza isikhunta; imalunga nobunjineli okwethutyana, umngxuma owenziwe ngeceramic oziphatha ngokuqikelelwayo phantsi kwe-1500°C yesinyithi esinyibilikisiweyo. Iivenkile ezininzi zilungiswa kwibakala lokugqibela lentsimbi-ebaluleke kakhulu, ngokuqinisekileyo-kodwa ngokokubona kwam, idabi lokwenyani liphumelele okanye lilahlekile kwigumbi elinodaka kunye ne-autoclave edityanisiweyo. Kulapho ijometri igcinwa okanye igqwethekile phambi kokuba kugalelwe ithontsi enye yentsimbi.
Umbono ongeyiyo ongundoqo: Sisibophelelo nje
Abaninzi baphatha i-silica sol njengeglue elula, isibophelelo sokubamba umgubo we-refractory kunye. Oko kukwenza lula okuyingozi. Yinkqubo ephilayo. I-viscosity ye-sol, i-pH, kunye nomxholo we-SiO2 ayingomanani nje kwi-spec sheet; bayalela ukuba idyasi yokuqala imanzise ipateni yewax, ukuba ikhupha ngokulinganayo kangakanani, kwaye ekugqibeleni, ukugqitywa komphezulu wokusalwa. Ndibone iibhetshi apho i-sol ibindala kancinci, ikhokelela kwimpendulo ekhawulezayo ye-gelling kunye ne-ethyl silicate hardener. Isiphumo? Idyasi yokuqala ebhityileyo eye yaqhekeka kancinci ngexesha lokukhutshwa kwewaxing, ibangela iziphene zemithambo kuyo yonke into edlalwayo ekubalekeni. Isinyithi sasigqibelele i-316L, kodwa iindawo zazizilaphu.
Apha kulapho amava asisiseko somthengisi abalulekile. Ufuna iqabane eliqondayo ukuba izinto ezisetyenziswayo zikhethekileyo njengenkqubo. Inkampani efana Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), kunye namashumi amathathu eminyaka kubumba iqokobhe kunye nokuphosa utyalo-mali, ufumana oku ngaphakathi. Ayikokuzithengisela i-silica sol; imalunga nokwazi ukuba impumelelo yakho i-silica sol echanekileyo ukuphosa inkqubo ixhomekeke kungqinelwano lolwelo kanye. Umsebenzi wabo wexesha elide ucebisa ukuqhelana okunzulu, okusebenzayo kwezi nuances eziphathekayo, uhlobo oluvela kuphela ekuqhubeni imigca yemveliso unyaka nonyaka.
Ukukhethwa komgubo ophikisayo-i-silica edibeneyo, i-zircon, okanye into efana ne-mullite-itshatile nokuziphatha kwe-sol. I-Zircon idinga i-sol viscosity eyahlukileyo kune-silica edityanisiweyo yokudipha ngokufanelekileyo. Kukubhanqa. Awunakuyenza ibe nye xa uwedwa. Oku sikufunde kabuhlungu kwiprojekthi yeprototype yeblade ye-injini yomoya. Sitshintshele kumgubo ocolekileyo we-zircon ukuze ufumane iinkcukacha ezingcono kodwa sagcina iiparamitha zokudipha zifana. I-slurry yayingqindilili kakhulu, iikona ziye zadityaniswa, kwaye iqokobhe laphuhlisa imimandla yokuqina okuphantsi. Amaqokobhe ahlala eqhekeka ngexesha lokuphatha. Isifundo esinexabiso elikhulu kwindlela yokucinga.
Umdaniso woKwakha iShell: ILayer-by-Layer Compromise
Ukwakha iqokobhe kulapho ithiyori idibana nobunyani obumdaka bomgangatho wevenkile. Incwadi yesikhokelo ithi 7-9 iingubo. Kodwa ngenxa yokugalela intsimbi yecandelo elishinyeneyo? Unokufuna iidyasi ezingaphezulu zokuxhasa amandla, kodwa idyasi nganye yongeza kumngcipheko wokubambisa uxinzelelo ngexesha lokumisa. Ngodonga olucekeceke, oluntsonkothileyo lwentsimbi engenasici, ungabeka phambili iidyasi ezimbalwa, ezicolekileyo ukunqanda ukuzalisa iinkcukacha. Kukuchasana phakathi kwamandla aluhlaza, ukunyanzeliswa, kunye nokuchaneka komgangatho wokugqibela.
Ukomisa phakathi kweedyasi yintlupheko engaqikelelwayo. Akunjalo nje ngexesha; imalunga nokuhamba komoya, ukufuma, kunye nokufana kwamaqondo obushushu kwigumbi lokomisa. Idrafti encinci inokubangela ukuba elinye icala leqela lome ngokukhawuleza, elikhokelela kuxinzelelo oluhlukeneyo. Sakhe saba nomcimbi ophindaphindiweyo wokuqhekeka kweqokobhe kwelinye icala leeracks zethu zokomisa. Kusithathe iiveki ukuba siyilandele emva kwi-HVAC edala imozulu encinci. Ulungiso lwalungekho kwifomula eludaka; ibikulawulo lweziko.
I-Stuccoing bobunye ubugcisa. Ubungakanani kunye nohlobo lwe-stucco-kwakhona, i-zircon, i-silica edibeneyo, i-alumino-silicate-imisela ukubola kweqokobhe kunye nokuchasana nokungena kwesinyithi. Kulungile kakhulu, kwaye ukhuphe ukuphuma kwegesi ngexesha lokugalela, okukhokelela kwi-porosity yerhasi ekugaleleni. Irhabaxa kakhulu, kwaye ufumana umphezulu orhabaxa wangaphakathi onokubangela ukungena kwentsimbi kunye nokugqiba kakubi. Kwi-alloys yobushushu obuphezulu QSY Uluhlu, olufana ne-nickel-based kunye ne-cobalt-based alloys, enamanqaku aphezulu okunyibilika kunye nolwelo olwahlukileyo, iqhinga le-stucco linokutshintsha lithande ukuchasa okuphezulu kunye nokumelana nokothuka kwe-thermal. Amava abo kuluhlu olubanzi lwemathiriyeli, ukusuka kwintsimbi etyhidiweyo ukuya kwialloyi ezikhethekileyo, athetha ukuba kufuneka balwazi kakuhle olu hlengahlengiso.
I-Dewaxing: Umzuzu woxinzelelo oluphezulu
Olu luvavanyo lokuqala lokwenyani lweqokobhe lakho. Lonke olo maleko lucokisekileyo luza kuba phantsi kokwandiswa kwe-thermal ngokukhawuleza njengoko i-wax inyibilika kwaye isanda. Uxinzelelo lwe-autoclave kunye nesantya serempu yobushushu zibalulekile. Ukukhawuleza, kwaye uxinzelelo lwe-hydraulic we-wax luya kuqhekeza igobolondo elakhiwe kakuhle. Ukucotha kakhulu, kwaye ubeka umngcipheko wokususwa kwe-wax engaphelelanga, okukhokelela kwimililo kunye neziphene zekhabhoni ngexesha lokudinwa.
Sasinebhetshi yamaqokobhe eminye imizimba yevalvu ehlala iqhekeka kwisiseko se-sprue. Amaqokobhe ayekhangeleka egqibelele. Sajonga yonke into—i-slurry, i-drying, i-stucco. Ekugqibeleni, sajonga kwi-wax ngokwayo. Umboneleli omtsha ubene-coefficient ephezulu kancinane yokwandiswa kobushushu. Iqokobhe, eliyilelwe iprofayile yokwandiswa kwewax endala, ayikwazanga kuqulatha uxinzelelo olongezelelweyo. Isisombululo sasikukuguqula umjikelo we-autoclave, ukwazisa i-pre-pressure soak emfutshane ukuthambisa i-wax core ngaphambi kokuqhuma okukhulu kwe-steam. Yongeza imizuzu emi-3 kumjikelo kodwa yagcina amawaka kwi-scrap.
Ukutshiswa kunye nokugalela: Apho i-Ceramic Shell ifumana ukugcinwa kwayo
Ukudinwa akukho malunga nokutshisa intsalela yewax. Imalunga nokutshisa i-ceramic, ukuphuhlisa amandla ayo okugqibela ashushu. Irempu ukuya kwi-1000 ° C + kufuneka ilawulwe ukunqanda ukothuka kwe-thermal. Nayiphi na intsalela yekhabhoni evela kwi-wax inokudala umoya ocuthayo ngaphakathi kwiqokobhe, ethi kwezinye ialloys ezifana neentsimbi ezithile ezingenasici, inokuba yingozi kumphezulu wekhemistri.
Emva koko kuza ukugalela. Apha kulapho iqokobhe likwazi ukungena khona. Isinyithi esinyibilikisiweyo singena ngaphakathi, iigesi kufuneka ziphume ngodonga lweqokobhe. Ukuba iqokobhe lixinene kakhulu (ukusuka kwidiphu okanye istucco esihle kakhulu), irhasi iyavaleleka, yenze imingxunya. Ndikhumbula umsebenzi wepump impeller kwi duplex steel stainless. Amaqokobhe ayemahle, ashinyene, kwaye omelele. Kodwa sibe ne-30% yezinga lokukhatywa kwegesi engaphezulu. Umba walandelwa emva kweyesithathu kunye neyesine idyasi i-slurry, esasiyixubile ixesha elide lokuzinza, siyenza ibe yintle kakhulu kwaye sinciphise i-inter-particle pores. Imeko yeklasi yokuphucula ipropati enye (uzinzo lwe-slurry) ngeendleko zeyona nto ibalulekileyo (i-permeability).
UkuGqiba kunye neNqanaba lokwenyani leLizwe
Ubungqina bukwigumbi lokusila. Singakanani isitokhwe ekufuneka sisuswe? Owenziwe kakuhle i-silica sol echanekileyo ukuphosa Inkqubo kufuneka ivelise iindawo ezifuna ukugqitywa okuncinci. Indawo yokususa isango kufuneka icoceke, ingakrazuli iqhekeza lesiseko sokugalela. Umphezulu kufuneka ucoceke ngokwaneleyo ukuba kobunye ubuso obungabalulekanga, ukuqhuma kweglasi-bead elula kwanele. Lo nguwongi weendleko ezinkulu, ngakumbi kwii-alloys ezinzima ezifana ne-cobalt-based ekunzima ukuyifaka kumatshini.
Le yinkonzo edibeneyo eziswa ngumnikezeli wenkonzo epheleleyo. Akunjalo nje ukwenza iqokobhe kunye nokugalela isinyithi. Litsheyini lexabiso lilonke, ukusuka ekwenziweni kwepateni ukuya kokugqibela CNC Machining. Ukujonga QSYUmda-oquka ukuphosa ukungunda kweqokobhe, utyalo mali, kunye nomatshini we-CNC-zakhelwe ukulawula oku kuhamba konke. Banokuyila inkqubo yokuphosa becinga ngomatshini, baphucula iindawo zamasango ukuze zicoceke kancinci, nto leyo iluncedo olukhulu kumacandelo antsonkothileyo. Iwebhusayithi yabo, https://www.tsingtaocnc.com, ibonisa le ndlela edibeneyo, ibeka njengesisombululo samacandelo agqityiweyo, kungekhona nje ukuphosa okukrwada.
Ekugqibeleni, i-silica sol precision casting yitsheyini yezigqibo ezincinci ezilikhulu. Ngamnye-ukusuka kwi-pH ye-sol ukuya kwinqanaba le-ramp kwisithando somlilo-ushiya umnwe kwinxalenye yokugqibela. Iivenkile eziphumelelayo azilandeli nje iresiphi; bafunda oonokrwece, betolika iintanda, kwaye basoloko belungisa inkqubo. Ngumxube wezinto ezinzulu zesayensi kunye nezandla-on, phantse intuitive, ubugcisa bomgangatho wevenkile. Usukelo asilomfezeko; kuyaqikelelwa, ukugqwesa okuphindaphindwayo, ibhetshi emva kwebhetshi. Kwaye oko kuvela kuphela kwixesha kwimisele, ejongene nokufuma kwexesha le-monsoon okanye ibhetshi entsha yesanti ephikisayo eziphatha ngendlela eyahlukileyo.
