Abahlinzeki befekthri be-QT400-18 abagcini ngokuthumela izinto ezisakazwa ngomkhumbi—baletha ukuzethemba kwesakhiwo. Uma i-hydraulic manifold yakho kufanele ibambe amabha angu-350, lapho i-winch center shaft yakho ibekezelela ukushaqeka kwansuku zonke ezimweni zasogwini lwase-Arctic, noma lapho indlu yephampu ibhekene ne-slurry abrasive ku-120°C, ibanga le-ductile iron akuwona umbhalo waphansi. Kuyisisekelo. I-QT400-18 ayiyona insimbi empunga ejwayelekile. Ilawulwa ngokuqinile, i-spheroidal graphite microstructure enamandla amancane aqinile angama-400 MPa kanye nobude obungu-18%—ibhalansi yamandla eyivelakancane, i-ductility, kanye nokusebenza ngendlela okufinyelelwa ngayo yiziqalo ezimbalwa ngokuqhubekayo kuwo wonke amasayizi weqoqo ukusuka kumayunithi angama-5 kuye kwangama-500.
Kungani i-QT400-18 ihluleka-hhayi elebhu, kodwa phansi esitolo
Sibone izindlela ezintathu zokuhluleka eziphindelelayo ezinhlelweni zomhlaba wangempela ze-QT400-18: ukubala kwamanodule okungahambisani ngaphansi kuka-120/mm², isilinganiso se-ferrite/pearlite sikhukhuleka ngalé kuka-85/15%, kanye ne-warpage edalwe ingcindezi eyinsalela ngemva kokuqedwa kwe-CNC. Lezi akuzona izingozi zethiyori. Kubukeka njengokuqhekeka kokukhathala ngaphambi kwesikhathi ezindlini zesilinda sephampu ye-piston, njengama-bores angenakubekezelela emizimbeni yamavalvu okucindezela, noma njengokuqhekeka okungaphezulu ngesikhathi sokuchama. Imbangela? Uhlu oluningi lwe-“QT400-18” oluku-inthanethi lubhekisela kumakhemikhali avamile kuphela—hhayi ukulawulwa kwangempela kwenqubo yokulingisa. Ukuthobela kwangempela kudinga ukulawula okuqinile ngesikhathi sokwelashwa kwe-magnesium, izinga lokushisa lokugomela, izinga lokupholisa esibunjeni, kanye nemijikelezo yokukhulula ukucindezeleka kwangemva kokusakazwa. Esikhungweni sethu se-Qingdao, konke ukushisa kwe-QT400-18 kuhlaziywa okubonakalayo, ukuqinisekiswa kwe-nodule morphology nge-ASTM E2399, nokuhlolwa okuqinile nge-ISO 6892-1 ngayinye—hhayi nje emigoqweni yokuhlola, kodwa kumakhuphoni amele asikwe engxenyeni ewugqinsi yokusakaza.
Ukuhlanganiswa okuqondile kuxazulula lokho okufihliwe amashidi athile
Abathengi abaningi bathola ukusakazwa kwe-QT400-18 komunye umphakeli futhi bakuqedele komunye. Lokho handoff kudala amabala angaboni. Sisebenza ngomshini zonke izingxenye ze-QT400-18 zasendlini—ngokushesha nje ngemva kokudambisa ingcindezi, ngaphambi kokuthi kuqale ukukhukhuleka. Amaseli ethu e-CNC anezinhlangothi ezinhlanu asika ngokuqondile ekubunjweni kwesihlabathi esiluhlaza esebenzisa i-carbide tooling elungiselelwe insimbi ye-ferritic ductile. Kungani lokhu kubalulekile? Ngoba ukwenza imishini ye-QT400-18 ngaphandle kokubala ingxenye yayo yevolumu ye-graphite engu-12–15% kubangela ingxoxo eyakhelwe ngaphakathi, ukuncipha konqenqema, kanye nokuklebhuka kwe-subsurface. Silungisa amazinga okuphakelayo ngo-18% ngaphansi kwamapharamitha ensimbi ajwayelekile futhi sisebenzisa imibhobho yokulethwa epholile ebekwe phakathi kuka-12 mm wendawo yokusika. Umphumela: ubulukhuni bobuso Ra ≤ 0.8 μm endaweni ebucayi yokuvala, iqanda lingasebenzi kabusha ekugxilweni kwe-bore kumavalvu e-hydraulic spool.
Ukulandela umkhondo akuwona umsebenzi wamaphepha-kuyi-physics
Lapho ikhasimende e-Germany libika ukuguga okungalindelekile kusisekelo sephampu ye-QT400-18, inkinga asizange siyilandele ekulingiseni—kodwa ekugxiliseni kokupholisa ngomshini kwehle ngaphansi kuka-7.2% phakathi neshifu yangempelasonto. Ukulandeleka okugcwele kusho ukuxhuma ingxenye ngayinye nenombolo yayo yokushisa yezinto ezingavuthiwe, isitembu sesikhathi selogi yesithando somlilo, ijika lokumanzisa okudambisa ingcindezi, umbiko wokuhlola we-CMM, ngisho neqoqo elithile lokupholisa elisetshenziswe phakathi nokuqedwa. Sirekhoda konke lokhu—hhayi ku-Excel, kodwa ku-ISO 9001-certified MES yethu, esinamasiginesha edijithali kuzo zonke izindawo zokuhlola. Ayikho imidwebo “eyakhiwe”. Bonke ubukhulu buqinisekiswa ngokuphikisana nama-callout e-GD&T kusetshenziswa ama-Zeiss CONTURA G2 CMM abalwe kumazinga we-NIST. Uma umdwebo wakho ucacisa ukubekezelela isikhundla kwe-Ø0.05 mm kuphethini yebhawodi ye-flange, umbiko wethu we-athikili yokuqala ubonisa ukuchezuka kwangempela: Ø0.032 mm—kukaliwe, kuqinisekisiwe, kufakwe kungobo yomlando.
Iphrojekthi yakho ye-QT400-18 iqala ngaphambi kwe-oda
Asicaphuni ama-casting. Sisebenzisana nonjiniyela izixazululo. Uma uthumela imodeli ye-CAD ye-valve ye-high-pressure, i-metallurgists yethu ihlola ukuguquguquka kokuqina kodonga ngengozi yokuqina. Omashini bethu bahlaba umkhosi ngama-undercuts adinga amathuluzi angokwezifiso. Ithimba lethu lekhwalithi liphakamisa amaphuzu okuhlola aqondaniswe nezimfuneko ze-ASME B16.34—hhayi nje lapho kulula ukukala, kodwa lapho ukwehluleka kwenzeka khona ngempela. Ngekota edlule, sihlele kabusha ihabhu yesigubhu sewintshi yeklayenti ye-QT400-18 ukuze kuqedwe irediyasi yefillet engu-22 mm ebangele ukuncipha kwe-porosity yendawo. Ukufakwa kwesango okubuyekeziwe kwehlise izinsalela zisuka ku-14% zaya ku-2.3%. Akukho makhaphu. Ubuqotho obusebenzayo nje, bulethiwe.
Uma udinga ukulingisa kwe-QT400-18 okwenza—hhayi nje ukudlula ukuhlolwa—thintana ne-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ngqo. Senza izingxenye ze-QT400-18 zamasistimu asebenza ngamanzi, izimoto zobunjiniyela, okokusebenza kukawoyela negesi, kanye nemihlangano yephampu ekhethekile—ngaphansi kokulawulwa kwenqubo egcwele, ukulandeleka okugcwele, nokuziphendulela okugcwele. Vakashela https://www.tsingtaocnc.com ukuze ubuyekeze isitatimende sethu samanje sekhono le-QT400-18, izitifiketi zezinto ezibonakalayo, nekhalenda lamandla okukhiqiza.
