Lapho onjiniyela bayacacisa imboni ye-cast iron investment casting manufacturer Izisombululo, azithengi izingxenye nje kuphela—zivikela ukuqina kohlangothi ngaphansi kokuhamba ngebhayisikili okushisayo, ukungaguquguquki kwe-microstructural kuwo wonke amaqoqo angamayunithi angama-500, kanye nokungabekezeleli i-porosity emizimbeni yamavalvu anomfutho ophezulu. Sibone amaphrojekthi amaningi abambezeleka abahlinzeki abaphatha ukutshala imali njengenqubo elingana nosayizi owodwa—ikakhulukazi ngama-ayina ampunga kanye nama-ductile cast, lapho ukulawulwa okulingana nekhabhoni, izilinganiso zerempu yokushisisa kwesikhunta, kanye nokulawulwa kwamazolo ekwakhiweni kwamagobolondo kunquma ngqo ukusebenza nempilo yokukhathala.
Kungani I-Cast Iron Idinga Okungaphezu Kwe-Foundry Nje
I-cast iron "akulula ukuyiphonsa" ngoba igeleza kahle. I-graphite morphology yayo—ama-flakes ensimbi empunga, amaqhuqhuva ku-ductile—isabela kahle esilinganisweni sokupholisa, isikhathi sokujova, ngisho nomswakamo ophakathi ngesikhathi sokuhlanganiswa kwephethini ye-wax. Esikhungweni sethu esithobela i-ISO e-Qingdao, siphatha inkatho ngayinye njengokuhlolwa kwensimbi: izitifiketi zezinto ezingavuthiwe eziqinisekisiwe ngaphambi kokufakwa kwe-alloying, isithando somlilo siyancibilika kulandelelwa i-spectrometry yesikhathi sangempela, kanye nokubunjwa kwamagobolondo okubhakwa ku-1,100 ° C nesikhathi sokuhlala esiyimizuzu engama-30-hhayi ngoba izinga lisho njalo, kodwa ngenxa yokuthi sincipha ukuncishiswa kwe-micro-2% ngaphezulu. 1,050°C imizuzu engu->25.
Silethe izindlu zamavalvu wokucindezela ezingaphezu kuka-470 zamasistimu asebenza ngogesi asebenza kubha engu-420—ayikho ehlulekile ukusebenza. Kungani? Ngoba asimi ku-ASTM A536 noma ku-GB/T 1348. Siqinisekisa i-nodularity ngokuhlaziywa kwesithombe kukho konke ukulingisa kwesithathu, sisebenzisa imigoqo eqinile ukusuka ekutheleni okufanayo njengengxenye yokukhiqiza, futhi simise imephu yobulukhuni ezindongeni zezindlu zisebenzisa izikena ze-Rockwell C ezinamaphoyinti angu-12. Yileyo ndlela obamba ngayo indawo epholile epholile eshintsha udonga lwama-30-mm lube isixhumi esibonakalayo esiphukayo.
Lapho Ukutshala Kwezimali Kwehlula Isihlabathi-futhi Uma Kungenzeki
Ukutshala imali kuletha ukubekezelelana okulinganayo okungu-±0.05 mm kanye no-Ra 1.6 µm njengokuphonswa kwendawo engaphezulu—okubalulekile ezindlini zamasilinda wepompo ye-piston lapho ijometri ye-seal groove ibeka amanani okuvuza. Kodwa sitshela amaklayenti kusenesikhathi: uma ingxenye yakho inesisindo esingaphezu kuka-45 kg noma inezikhala zangaphakathi ezibanzi kuno-8 mm, ukubunjwa kwesihlabathi ngokuvamile kunikeza ukuzinza okungcono okuyisisekelo kanye nezindleko eziphansi ngekhilogremu ngayinye. Siye saziqhelanisa nezingcaphuno lapho isihlabathi singaletha ukuqina kodonga oluqinile—ngoba ukwethembeka kuvimbela ukwehluleka kwenkambu.
Ukugeleza komsebenzi wethu okuxubile kuvala igebe. Isibonelo: amarola e-winch center shaft aqala njenge-investment-cast ductile iron (ASTM A), bese evula i-CNC evula amalebula angama-5-axis kuya kumajenali aneqiniso ngaphakathi kuka-0.015 mm TIR. Ukwelashwa kokushisa kuyalandela-ukucisha ku-890 ° C, ukushisa ku-620 ° C-bese kudutshulwa ukuchama ukuze kubangele i-+280 MPa yokucindezela ebusweni. Umphumela? Impilo ye-shaft inwetshiwe ngo-3.7× ekufakweni kwezimoto zobunjiniyela zasogwini lolwandle lapho i-grit egcwele usawoti isheshisa ukugoba.
Okune Okungaxoxiswana Ekukhiqizeni Kwensimbi Yensimbi Okusebenza Kakhulu
Noma yikuphi imboni ye-cast iron investment casting manufacturer ukufuna ukwethembeka kufanele kubonise lezi zilawuli ezine:
- Ukulandeleka kokubalulekile kwehle kunombolo yokushisa—hhayi nje ama-mill certs, kodwa imibiko yokuhlolwa kabusha kwe-spectral ye-Si, Mn, P, S, kanye ne-Cu/Ni/Cr esele kuwo wonke amaqoqo;
- Ukuqinisekiswa kobuqotho begobolondo-sisebenzisa ukuhlolwa kokuvuza kwe-helium ekubunjweni okubucayi okungenalutho, hhayi nje ukuhlola okubonakalayo;
- In-process ukugcinwa kwe-dimensional-I-CMM ihlola ngemva kokukhishwa kwe-waxing, ngemva kokudubula, nokuqhuma ngemva kokudubula—ngaphambi kokuba kuqale umshini;
- Ukuqinisekiswa okusebenzayo kuzinhlelo zokuhlola-imizimba ye-valve egeleza-ihlolwe ku-1.5 × ingcindezi elinganiselwe; izindlu zokupompa zi-spin-balanced kuya ku-G2.5 grade.
Siyenqaba u-8.3% wokulingisa kwe-athikili yokuqala—hhayi ngenxa yeziphambeko zezimonyo, kodwa ngenxa yokuthi ama-callout e-GD&T ezindaweni ezikhwezwayo ze-flange adlule ukubekezelela ukuvuleka okungu-0.03 mm. Lokho kuziphatha kudlulela kumthamo wevolumu emaphakathi: isistimu yethu yokushejula ethambile inikezela isikhathi sebhafa sokulungiswa komjikelezo wegobolondo lapho umswakama wemonsoon ukhuphuka ngaphezu kuka-75% RH. Ngoba ukusakaza akuhambisani nesimo sezulu esikahle—kumayelana nokulawula okuguquguqukayo ongakwazi ukukukala.
Lokho Okudingwa Onjiniyela Empeleni—Hhayi Lokho Izincwajana Ezithembisayo
Udinga ukucaciseleka ngohwebo lwesikhathi sokuhola: ukutshala imali kwengeza amaviki angu-2–3 okusetshenziswa kwamathuluzi nokwakhiwa kwamagobolondo, kodwa kuqeda ukwenziwa kwemishini yesibili kokungu-68% wezici ekwakhiweni kwethu okujwayelekile kwesisekelo sephampu. Udinga obala ekusebenzisaneni kwe-cobalt-alloy—sivamise ukusakaza i-AMS 5387 eduze kwe-ductile iron kumasistimu okungena okwabelwana ngawo, kodwa kuphela ngemva kokuqinisekisa ukungezwani kokunwetshwa okushisayo ngokulingisa kwesici esilinganiselwe sengaphambili lokuqinisa. Udinga umuntu ozomaka izingxabano ze-GD&T kusenesikhathi: sibambe ukubekezelela isikhundla esingu-0.02 mm embobeni ye-dowel engu-12 mm ebidinga kuthuthwe lonke uhlelo lwe-datum—yonga u-$24k ekulingiseni okulahliwe.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ayithengisi ama-castings. Sixazulula izindlela zokwehluleka kokusebenza—izindlela ezivuzayo, ukuhlanekezela okushisayo, ukuguguleka—ngokuqondanisa i-metallurgy, i-process physics, kanye nenhloso ye-mechanical design. Amandla ethu alele ekwenzeni izinto ezimbalwa, kodwa ukuzenza ngokuphindaphinda okubhaliwe: kusukela ku-T800 cobalt nozzles ebamba i-slag encibilikisiwe engu-650°C kuya ezisekelweni zephampu yensimbi ezisinda eminyakeni eyi-15 ekusetshenzisweni ogwini ngaphandle kokuwohloka kwe-cobalt.
Uma iphrojekthi yakho elandelayo idinga imboni ye-cast iron investment casting manufacturer ikhono elisekelwe esilinganisweni—hhayi ukumaketha—qala ngomdwebo wokubuyekeza. Sizokutshela ukuthi yini engenziwayo, yini edinga ukuklanywa kabusha, kanye nokuthi ubungozi buhlala kuphi. Hhayi ngamagama angacacile. Ngama-microns, ama-megapascal, nezinombolo zokushisa ezibonakalayo.
