Izixazululo zefekthri ezikhiqiza isikhunta esingapheli se-gravity zidinga okungaphezu nje kwezibungu zensimbi ezincibilikisiwe nensimbi. Zidinga ukulawulwa okunembayo okushisayo, ukuphathwa kwempilo yesikhunta okuphindaphindwayo, kanye nokuqeqeshwa kwe-metallurgical—ikakhulukazi lapho kukhiqizwa izingxenye ezinobuqotho obuphezulu zamaphampu asebenzisa amanzi amaningi, amavalvu enkundla kawoyela, noma amasistimu ewintshi emoto yobunjiniyela. Kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., sifake izingxenye zensimbi nensimbi ezinesilinganiso sokucindezela ezingaphezu kuka-12,000 ekubunjweni okuhlala njalo kusukela ngo-2018—futhi konke ukwehluleka, konke ukukhukhuleka okunohlangothi, wonke umcimbi wokuncipha kancane usifundise into eyodwa: ukulingisa amandla adonsela phansi akukhona ukuthela okwenziwayo. Kulawulwa ukuqina.
Kungani I-Permanent Mold Gravity Casting Isanqoba Ezingxenyeni Zezimboni ezinomthamo omaphakathi
Abanye onjiniyela bacabanga ukuthi ukufakwa kwe-investimenti kuthatha indawo ye-gravity ehlala isikhunta. Kepha ekukhiqizweni kwangempela — hhayi imininingwane yelebhu — isikhunta esihlala njalo siletha ukuphindaphindeka okuqinile kwezindlu ezinjengamabhulokhi wephampu ye-piston kanye nemizimba yama-valve yokucindezela. Kungani? Ngoba izinga lokushisa lesikhunta lihlala lingaphakathi kuka-±5°C emijikelezweni engu-300+ uma usebenzisa isikhunta sensimbi yamathuluzi e-H13 esishisiwe ngaphambili. Ukulingwa kwesihlabathi akukwazi ukufana nalokho kuzinza. Ukukhishwa kwe-investimenti yethula ukuhlukahluka kwegobolondo le-ceramic kanye nengcindezi ephakeme eyinsalela. Siyayilinganisa: ekubunjweni kwesisekelo sepompo engu-420 mm × 280 mm × 120 mm, isikhunta esihlala njalo sibamba ukubekezelela isikhundla se-GD&T kuya ku-±0.15 mm ngaphezu kwamayunithi angama-500; ukulingwa kwesihlabathi okumaphakathi okungu-±0.32 mm, nezinsalela ezingu-17% ngenxa yoshintsho olukhulu.
Sisebenzisa imigqa yesikhunta ehlala njalo ye-gravity ezinikele—eyodwa eye-ductile iron (ASTM A), eyodwa eyensimbi ye-low-alloy (A105N). Kokubili kusebenzisa i-gating yokuthela phansi, okufakiwe okupholile ezindaweni ezibucayi, kanye nokuqapha kwesikhathi sangempela se-thermocouple ezindongeni zesikhunta. Akukho ukuqagela. Asikho isikhathi somjikelezo "ojwayelekile". Ingxenye ngayinye inephrofayela yayo yokuqinisa efakwe kumephu yemibiko yethu yokuqinisekisa.
Lapho Izimboni Eziningi Zehluleka—Nendlela Esikulungisa Ngayo
Iningi lemisebenzi yefekthri ekhiqiza isikhunta unomphela amandla adonsela phansi iwa ngamaphoyinti amathathu: ukuwohloka kwesikhunta, ukushisa kwangaphambi kwesikhathi okungahambisani, kanye nedizayini yesikhuphukeli enganele yokuphakela okuqondene ne-alloy. Lokhu sikubone mathupha ku-oda lezindlu zephampu ye-cobalt ye-AMS 5387. Ama-casting okuqala angu-19 abonise i-porosity engaphansi komhlaba eduze ne-flange-naphezu kwamakhemikhali aphelele. Imbangela? I-mold surface oxidation ngemva kwemijikelezo engu-42 ishintshe amazinga okukhipha ukushisa. Isixazululo: Manje sibumba kabusha amashothi angu-35 sisebenzisa i-alumina blasting kanye ne-proprietary borosilicate coating—okuqinisekiswa ngokuhlolwa kwe-infrared emissivity ngaphambi kokuthela ngakunye.
Siphinde futhi sisebenzise isiyalo esiqinile sokushisa ngaphambi kwesikhathi. Isikhunta sethu asilokothi singene emakhazeni esithandweni. Zicwiliswa ku-280 ° C imizuzu engu-90, bese zikhuphukela ku-320 ° C ±3 ° C futhi zibambe imizuzu engu-45-zikalwa ezindaweni ezintathu zokushona. Lokho akuxoxiswana ngakho. Yeqe, futhi uthola ukuqhekeka okubandayo noma ukungahambi kahle kwezinto ezisekelwe ku-T800. Amakhasimende anikeza isikhunta sawo ngokuvamile awakunaki lokhu. Sihlola ezabo ngaphambi kokwamukelwa.
Ukuhlanganisa Kuyinzuzo Yangempela—Hhayi Ukulingisa Kuphela
Isixazululo sefekthri yokukhipha isikhunta sangempela esinamandla adonsela phansi asimi ekunyakazeni. Iqhubeka ngomshini, ukwelashwa ngokushisa, kanye ne-metrology—konke ngaphansi kophahla olulodwa. Esikhungweni sethu se-Qingdao, i-cast cylinder housing isuka ngokuqondile ekususeni isikhunta iye ku-CNC ivula i-Mazak Integrex i-200S. Akukho ukubambezeleka kwezinto. Awukho umonakalo wokubamba. Akukho ukuhlela kabusha isistimu. Sisebenza ngomshini ama-bores abucayi ngenkathi ukusakaza kusengaphakathi kuka-50°C wezinga lokushisa eliqinile—sehlisa ukuhlanekezela ngo-40% uma kuqhathaniswa nomshini wezinga lokushisa legumbi.
Ukuhlanganiswa kwethu okuqondile kuhlanganisa izendlalelo ezine: ukuqinisekiswa kwezinto ezibonakalayo (konke ukushisa okungalandeleka emibikweni yokuhlolwa komshini), ukuqinisekiswa kwenqubo yokusakaza (ngesampula ye-radiographic ne-ultrasonic nge-ASME B16.34 ngayinye), ukunemba kwemishini (CMM-kuqinisekiswe ku-ISO 2768-mK), kanye nokuhlola okusebenzayo (ukuhlolwa kwengcindezi ye-hydrostatic kufika kumabha angama-450 kuma-rigs ngokwezifiso). Yingakho ama-winch center shaft roller ethu ezimotweni ezingekho emgwaqeni onguthelawayeka ethola isivuno esingu-100% sokudlula kuqala—ngisho nangama-taper angajwayelekile kanye nezindawo eziphazamisekile.
Ukukhetha Umlingani Wakho Akukona Mayelana Nentengo-Kumayelana Nokubikezela
Uma ngabe iphrojekthi yakho idinga imboni yokukhipha isikhunta esinamandla adonsela phansi ethunyelwa ngesikhathi, ibamba i-GD&T ngaphandle kokungqubuzana, futhi ihlaba umkhosi ubungozi bokwenziwa ngaphambi kokuba kuqale ukusebenzisa—udinga amandla abhaliwe, hhayi izimangalo zokumaketha. Buza le mibuzo emithathu ngaphambi kokusayina:
- Ungakwazi ukungibonisa amaphakheji akho okugcina e-PPAP—okuhlanganisa nezingodo zokulungisa isikhunta namashadi okushisa komgodi?
- Ingabe wenza ukuhlaziya okungaphakathi kwenqubo kukho konke ukushisa, noma kumaqoqo e-athikili yokuqala kuphela?
- Uma ukusakaza kwehluleka i-NDT, ingabe uyawukhipha umbiko wesenzo sokulungisa—noma uvele usakaze kabusha?
Senza sobathathu. Zikhathi zonke. Isistimu yethu eqinisekisiwe ye-ISO 9001:2015 ilandelela konke ukudubula kwesikhunta, yonke impahla eluhlaza, yonke indawo yokuhlola ye-CMM. Akukho okuhlukile. Yileyo ndlela esisekela ngayo amakhasimende kulo lonke elaseNyakatho Melika, eJalimane, nase-Singapore—ngokungalethwa sekwephuzile ngama-oda evolumu emaphakathi ngo-2023.
Uma sibheka phambili, sandisa amandla ethu emboni yokukhiqiza isikhunta unomphela amandla adonsela phansi sibe yizinqubo ezixubile: ukubunjwa kwesikhunta esinemimo eseduze nenetha kuqedwe ngokugaya kwe-CNC okusizwa nge-laser kwe-cobalt-nickel alloys. Hhayi ngoba iyinoveli—kodwa ngenxa yokuthi idatha yasensimini ikhombisa ukuthi yehlisa izindleko eziphelele ngo-22% ezingxenyeni ezidinga kokubili i-geometry eyinkimbinkimbi kanye nokumelana nokugqoka ngokweqile. Ukunemba akuwona umnyango. Ukulandelana.
