Uma abantu abaningi bezwa 'i-investimenti ye-stainless steel investment', bafanekisela ingxenye engenasici, ecwebezelayo ephuma ebhukwanani. Iqiniso, ukugaya kwansuku zonke kokuwenza usebenze, kubi kakhulu futhi kuthakazelisa kakhulu. Akukhona nje ngokuncibilikisa insimbi bese uyithela esikhunjeni esiwubukhazikhazi; kuwukuxoxisana okuqhubekayo phakathi kokuziphatha kwezinto ezibonakalayo, ijiyomethri, nezindleko, lapho isinqumo sokuqina kodonga esingu-0.5mm singenza noma siphule iphrojekthi. Ngibone imiklamo eminingi kakhulu ingena elungele ukwenziwa ngomshini kodwa iphupho elibi lokusakaza, futhi yilapho ingxoxo yangempela iqala khona.
Umdlalo Wegobolondo: Konke Kusesikhunjeni
Igobolondo liyikho konke. Yilokho kuqala okufundayo. Sikhuluma ngesikhunta segobolondo se-ceramic esakhiwe eduze kwephethini ye-wax. Inani lamajazi, i-viscosity e-slurry, i-stucco sand grit-isinyathelo ngasinye siyahlukahluka. Yenza iphutha, futhi uzobona izici ezifana nokungena kwensimbi, lapho insimbi ingena khona ngokoqobo egobolondweni, ishiya indawo emangelengele, ehlanganisiwe okuyiphupho elibi okufanele lihlanzwe. Ngikhumbula iqoqo lemizimba yama-valve angu-316L esasigijima ngayo; izihloko zokuqala zaphuma nokuthungwa okunenhlaka ezindimeni zangaphakathi. Umlandu? Isendlalelo se-slurry esiyinhloko sasincane kakhulu, futhi isihlabathi se-stucco esihle asizange sidale umgoqo owanele. Silungise isikhathi sokucwilisa futhi sashintshela esihlabathini se-zircon esimahhadla ukuze uthole ijazi eliyisipele lokuqala. Inkinga ixazululiwe, kodwa yasibiza isonto lonke.
Yilapho okuhlangenwe nakho kwe-Foundry kubonisa khona. Inkampani efana I-Qingdao Qiangsenyuan Technology Co., Ltd.(QSY), namashumi eminyaka abo kugeyimu, le nqubo idayelwe. Cishe babone yonke imodi yokwehluleka kwegobolondo ongayicabanga. Akuwona umlingo; iyisizindalwazi sokuhluleka nokulungiswa kwakhiwe ngaphezu kweminyaka engama-30. Awukwazi ukusheshisa isikhathi sokumisa phakathi kwamajazi, kungakhathaliseki ukuthi isimiso sokukhiqiza sithini. Umswakama uba isitha sakho noma umngane wakho.
Futhi i-wax ayiyona nje ingcina. Imingcele yomjovo yephethini yokuqala-ingcindezi, izinga lokushisa-ithinta ukuzinza kwayo kwe-dimensional. Iphethini ye-wax esonteke kancane ihumusha ngokuqondile igobolondo le-ceramic elisontekile, bese libe ingxenye ye-cast engaphandle kokucaciswa. Sichitha isikhathi esiningi sifanelekela inqubo ye-wax njengoba senza ukuthulula insimbi. Yisisekelo esingenabukhazikhazi, esibucayi.
Okubalulekile Akulona Nje Ishidi Elicacisiwe
Ukucacisa i-CF8M noma i-17-4 PH kumane kuyisibhamu sokuqala. Umkhuba wokuncibilika yilapho insimbi yenzeka khona. Mayelana nokutshala imali, ubhekene nokushisisa okuncane, ngakho ukulawula kubaluleke kakhulu. Umkhuba wokukhipha ama-oxidation nge-aluminium noma i-silicon? Ishintsha uketshezi kanye nokuqukethwe kokufakwa kokugcina. Ezingxenyeni eziqukethe ingcindezi, lokhu ukuphila noma ukufa.
Thatha 17-4 PH insimbi engagqwali. Ibanga elidumile lokuqinisa imvula. Inzuzo yokusakaza kwe-investimenti ukuthi ungakwazi ukufeza i-surface as-cast enhle kakhulu kanye nezimo eziyinkimbinkimbi. Kodwa ukwelashwa kokushisa kwesimo se-H900? Uma isixazululo se-annealing singenziwanga ngendlela efanayo, uzothola izakhiwo zemishini ezingaguquki. Ngibone amakhuphoni okuhlola okuqinile avela kuqeqebana lokulingisa abonisa ukusabalala kwe-50 ksi ngamandla esivuno ngoba umthwalo wesithando somlilo ubungahlelwanga kahle. Ingxenye yayibukeka iphelele, kodwa yayizohluleka enkonzweni.
Lena enye indawo lapho ukubambisana nochwepheshe kuzuza khona. I-Foundry eyenza nasendlini CNC imishini, njenge-QSY, inenzuzo enkulu. Bayaqonda ukuthi i-microstructure yokulingisa kanye ne-micro-porosity izosebenzisana kanjani nethuluzi lokusika. Bangakwazi ukulungisa ukwelashwa kokushisa ukuze bathuthukise ukusebenza kahle ngaphandle kokudela izakhiwo zokugcina, okuthile indlu yokusakaza ezimele engase ingacabangi. Ukubuka okuphelele komjikelezo wempilo wengxenye.
IJomethri: Inkululeko kanye Nogibe
Yebo, ukutshala imali kukunikeza inkululeko emangalisayo yejometri. Amaphaseji angaphakathi, ama-undercuts, amajika ayinkimbinkimbi-konke kungenzeka. Kodwa 'kungenzeka' akusho 'kulula' noma 'kungabizi kakhulu'. Umthetho wesithupha ukujiya kwezindonga ezifanayo. Kodwa emhlabeni wangempela, izingxenye zidinga izimbambo, abaphathi, nama-mounting pads. Inselele ukulawula umehluko we-thermal mass.
Ukwehluleka kwakudala ukushwabana kwe-porosity endaweni eshisayo. Cabanga ngendlu ye-valve ene-flange ewugqinsi eshintshela emzimbeni omncane. Ingxenye ezacile iyaqina kuqala, ihlukanise i-flange ewugqinsi, bese incipha njengoba iphola kungabikho mthombo wensimbi ewuketshezi yokuwuphakela. Umphumela? Indawo ethambile, ebuthakathaka lapho udinga khona amandla. Ukulungisa? Ukusetshenziswa okuhlakaniphile kokugodola (ukufakwa kwensimbi kugobolondo ukuze kukhishwe ukushisa) noma i-wax padding ukuze kudaleke isisindo esiningi esicishwa kamuva. Kuyindida.
Ngasebenza empompini kanye, zonke izindwani ezincane ezimise okwe-aerofoil. Inkinga kwakungewona ama-blade; kwakuyisikhungo esimaphakathi. Yayinkulu kakhulu uma iqhathaniswa nama-blades. Sigcine ngokungeza i-ceramic core kuhabhu ukuze siyenze ingenalutho, sinciphise isisindo sokushisa futhi sidale isimo sokupholisa esifanayo. Ukuguqulwa komklamo kwakuqhutshwa inqubo yokulingisa, hhayi ngenye indlela. Lokho kuphumelele ukutshala imali.
I-Finish Line Ayisona Isinyathelo Esisodwa Nje
I-Knock-off, ukusika, ukugaya, ukuqhunyiswa kwesibhamu, ukwelashwa kokushisa, ukukhetha... izinyathelo zangemuva kokusakazwa yilapho izindleko nekhwalithi kungahluka khona kakhulu. Wonke umuntu ufuna ingxenye elungele ukuyifaka, kodwa leyo elungile inezendlalelo.
Ukunqunywa kuwubuciko. Ukukhipha isistimu yokugenca (amashaneli afaka insimbi engxenyeni) ngaphandle kokulimaza ingxenye. Ukusebenzisa amasondo abrasive kudala ukushisa, okungathinta insimbi endaweni ethinteke ukushisa, ikakhulukazi kumamaki aqinile. Izindawo eziyinkimbinkimbi kakhulu zisebenzisa ama-band saws noma ngisho CNC imishini ukususa amasango ngokunembile. Khona-ke insalela yesango idinga ukushaywa phansi. Lona umsebenzi wezandla, wamakhono. Izinga lalokhu kuqedwa lithinta ngqo impilo yokukhathala uma isango lisendaweni enengcindezi ephezulu.
I-Pickling, ukugeza kwe-asidi ukususa isikali futhi ubuyisele ungqimba lwe-chromium oxide eliseceleni insimbi engagqwali ubuso, kungesinye isinyathelo esibucayi. Isikhathi, izinga lokushisa, ukugcwala kwe-asidi—konke kufanele kulawulwe. I-pickle ngokweqile, futhi uthola indawo egxilile, enemigodi. Ngaphansi kwe-pickle, futhi ushiya isikali esishumekiwe esingaqala ukugqwala. Kuyisenzo sokulinganisa amakhemikhali esingakutholi ukunakwa ngokwanele kuze kube yilapho kuphuma okuthile kuguqukile noma kugqwalile ngokuqondile kubhavi.
Kungani Uzakwethu Olungile Engeyena Nje Umhlinzeki
Leli akulona ibhizinisi lempahla. Awuthengi izinto zokubopha eziphuma eshalofini. Uthenga ikhono lenqubo kanye nokujula kokuxazulula izinkinga. Uma ubheka isizinda senkampani, njengokubona lokho QSY isisebenze iminyaka engaphezu kwengu-30 kuyo yonke imikhakha yokulingisa nokwenza imishini, ikutshela ukuthi bake bazulazula kulokhu kushintshaniswa kwezizukulwane zonjiniyela. Cishe balondoloze amaphrojekthi ngokuphakamisa ukuguqulwa kwe-engeli okusalungiswa kancane noma ibanga elihlukile lengxubevange elisakaza kangcono ngezinto ezifanayo.
Inani elikhulu kakhulu elihlinzekwa yi-Foundry enhle ukungenelela kwedizayini kusenesikhathi. Ngaphambi kokuthi imodeli ye-CAD iphothulwe, ngaphambi kokuthi kunqanyulwe ithuluzi. Kungaleso sikhathi lapho bengathi, Singakwazi ukuphonsa lokho, kodwa uma usivumela ukuthi sihlukanise i-radius kancane kancane, siqinisekisa ukuthi akukho ukuncipha, noma Cabanga ngengxubevange esekelwe ku-nickel lapha esikhundleni salokho; izomelana naleyo ndawo ebolayo kangcono futhi sineresiphi yegobolondo efakazelwe yona. Lokhu kubambisana kuguqula umdwebo ube ingxenye ekwazi ukwenziwa, ethembekile.
Ekugcineni, kuphumelele insimbi engagqwali utshalomali casting imayelana nokwamukela izithiyo zenqubo ukuze uvule amandla ayo. Kuyingxoxo phakathi kwenhloso yokuklama kanye neqiniso elingokoqobo. Ingxenye ecwebezelayo, eyinkimbinkimbi esedeskini likanjiniyela iwumphumela wezinqumo eziyikhulu ezincane, ezilungile—namaphutha ambalwa alungisiwe—enziwa endaweni yokusungula insimbi, esikhathini eside ngaphambi kokuba insimbi iqale ukuthelwa. Yilokho otshala kukho ngempela.
