Mukuwona QT400-18 pamwambo, ndipo chinthu choyamba chomwe chimabwera m'maganizo nthawi zambiri chimakhala chitsulo cha ductile. Koma ndipamene kuphweka kumayambira. The 400 MPa tensile ndi 18% elongation ndizochepa, mzere woyambira, osati mapeto otsimikizika. Zoona zake n'zakuti, mmene mumachitira—kusungunuka, kuthirira, kuzizira kwa nkhungu—zimadalira ngati muli ndi chinthu chodalirika kapena chinachake chimene sichimakopera mabokosi papepala. Ndawonapo ma projekiti ambiri pomwe cholinga chake chinali kungogunda 18% kutalika pamakuponi oyeserera, pomwe kuponya kwenikweni, ndi makulidwe ake osiyanasiyana, kumatha ndi zinthu zosagwirizana. Ndiwo zokambirana zenizeni za QT400-18.
Zowona Zothandiza Pofotokoza QT400-18
Wopanga mapulani akamatchula QT400-18, nthawi zambiri amafunafuna kuphatikiza kwamphamvu koyenera komanso makina abwino, nthawi zambiri a nyumba, mabulaketi, kapena ma valve. Lingaliro ndi chinthu chokhululuka. Ndipo zikhoza kukhala. Koma chikhululukiro chimachokera ku njira yoyendetsera ntchito, osati kuchokera ku dzina la kalasi yomwe. Ndikukumbukira gulu la mapampu omwe tidapeza zaka zingapo zapitazo. Ma certs anali angwiro: 420 MPa, 19% elongation. Koma pakupanga makina pa shopu yathu yothandizana nawo, moyo wa zida udali wosasinthika. Ziwalo zina zidadulidwa mokongola, zina zidapangitsa kuti zida zivale kwambiri. Vuto silinali kuchuluka kwa katundu; chinali kusagwirizana kwapang'onopang'ono - kusiyanasiyana kwa ma nodule ndi ma pearlite omwe mulingo woyeserera sunagwire.
Ichi ndichifukwa chake ubale wanthawi yayitali ndi maziko odziwa bwino sikukambilana. Mukufunikira wogulitsa yemwe amamvetsetsa kuti zenera la chemistry limakhala lokhazikika QT400-18 ndi cholimba kuposa momwe ambiri amaganizira. Zomwe zili mu silicon, mwachitsanzo, ndizofunika kwambiri pakupanga feteleza koma zokwera kwambiri zimawononga kulimba. Chithandizo cha Magnesium chiyenera kukhala chokhazikika. Ndikuchita bwino. Kampani ngati Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd., ndi zaka makumi atatu akusewera, nthawi zambiri amakhala ndi magawowa kudzera muzochitikira. Iwo awona momwe kusintha kosawoneka bwino pakubweza kapena kutentha kumakhudzira mawonekedwe omaliza mu chipolopolo chovuta kapena zisankho zogulira.
Kukula kwa 18% ndi chitsanzo chodziwika bwino chomwe chingakhale chosocheretsa. Mutha kuzikwaniritsa ndi ferritic matrix yokwanira, yomwe ndi yabwino kukana kukhudzidwa ndi kutentha kotsika. Koma mutha kudumphiranso ndi mawonekedwe osakanikirana ngati ferrite ndi yofewa mokwanira. Otsatirawa atha kukwanitsa mayeso amphamvu koma amalephera kugwiritsa ntchito zinthu zenizeni padziko lapansi. Mfungulo ndikungonena osati giredi yokha, koma nthawi zambiri chofunikira chowonjezera ngati kuuma kwambiri (HBW 170 kapena kutsika ndi chandamale chabwino cha machinability) kapena mtengo wa Charpy ngati gawo likuwona katundu wosunthika. Izi zimakankhira mazikowo kuti apange mawonekedwe a ferritic kwenikweni.
Machining QT400-18: Kumene Chiphunzitso Chimakumana ndi Chip
Pa pepala, QT400-18 ikuyenera kukhala imodzi mwazitsulo zosavuta kuponyedwa pamakina. Kapangidwe kake ka ferritic ndi kofewa. Koma kwenikweni ndi mawu ogwira ntchito. Ngati microstructure si yunifolomu, mumapeza madontho olimba - madera ang'onoang'ono a pearlite kapena carbides - omwe amakhala ngati sandpaper pa zida zanu zodulira. Kusiyana pakati pa batchi yosasinthika ndi yosinthika kumatha kuwirikiza mtengo wa zida zanu pagawo lililonse. Si zachilendo kusintha ma feed ndi kuthamanga pang'onopang'ono pothamanga, zomwe ndizovuta kwambiri pakukonza mapulogalamu a CNC ndi kukhazikika kwadongosolo.
Mu ntchito yathu yopangira makina, komanso kuchokera ku zomwe ndawona muzochita za ogulitsa ophatikizika monga QSY omwe amagwira ntchito zonse zoponya ndi kupanga. CNC makina, njirayo ndi yokonzekeratu. Iwo nthawi zambiri amathamanga kuuma kupyola pa chitsanzo choponyera kuchokera ku chitsanzo chatsopano kapena pambuyo pa kusintha kwakukulu. Ndi cheke chosavuta, koma chimakuwuzani zambiri za machinability kuposa lipoti lokhazikika nthawi zina. Cholinga ndi kupewa zodabwitsa pa Machining Center. Kuponyedwa kwabwinoko kumatha kuwonongeka chifukwa cha kusakwanira bwino, zomwe zimapangitsa kuti zida zowonongeka komanso bajeti ziwonongeke.
Kusankha kozizira komanso kugwiritsa ntchito kumakhala kofunikira, nakonso. Ngakhale ndi chitsulo chabwino cha ductile, graphite imagwira ntchito ngati chip-breaker koma ingayambitsenso kuvala kwa abrasive. Makina ozizirira othamanga kwambiri omwe amalowa bwino ndikuchotsa tchipisi tating'onoting'ono (inde, ngakhale chitsulo cha ferritic chimatha kupanga tchipisi ta zingwe) ndi ndalama zopindulitsa. Izi ndi zothandiza, zapansi pa sitolo zomwe zimalekanitsa zinthu zongoyerekeza kuchokera kuzinthu zopanga.
The Shell Mold ndi Investment Casting Advantage
Apa ndi pamene ndondomekoyi imagwirizana kwenikweni ndi zinthu. Pamene mukugwira ntchito ndi QT400-18 munjira ngati kuponya nkhungu kapena kuponya ndalama, komwe QSY imagwira ntchito, mumapeza zovuta ndi zopindulitsa zosiyanasiyana poyerekeza ndi kuponya mchenga wobiriwira. Kutsirizitsa kwapamwamba kwambiri komanso kulondola kwadongosolo kwa njirazi ndizowonjezera zazikulu, zomwe nthawi zambiri zimachepetsa ndalama zogulira makina. Koma kuzizira kofulumira komwe kumapezeka mu nkhungu za zipolopolo, mwachitsanzo, kumatha kulimbikitsa mapangidwe a carbide kapena pearlite yabwino kwambiri, yomwe imatha kukankhira kuuma ndi kutsika pansi.
The foundry ayenera kulipira izi. Nthawi zambiri amatanthauza kusintha njira ya inoculation-mwinamwake pogwiritsa ntchito mtsinje wochedwa inoculant ndi zinthu zamphamvu zolimbikitsa ferrite. Ndakhala ndikuchita nawo ma projekiti omwe tidasintha gawo kuchokera ku mchenga wobiriwira kupita ku nkhungu ya chipolopolo kuti tilolere bwino, ndipo zoyambira zochepa zidatuluka molimba kwambiri. Tinayenera kubwereranso ndi metallurgist kuti tiwongolere silicon ndi inoculation kuti tibwerere ku zofewa, zofewa. QT400-18 kapangidwe ngakhale kulimba kofulumira. Ndi tingachipeze powerenga ndondomeko-zakuthupi mogwirizana.
Pazinthu zovuta, zokhala ndi mipanda yopyapyala mu mavavu kapena ma actuators, kuwongolera uku ndi chilichonse. Kuponyera ndalama, ndi chipolopolo chake cha ceramic, kumapereka ufulu wokulirapo wa geometric koma kumabweretsa zovuta zozizira zofananira. Zomwe mwapeza pakuwongolera zotsatira za microstructural panjira zosiyanasiyana ndizomwe mukulipira. Sizongopanga mawonekedwe; ndi za kupanga mawonekedwe ndi zolondola, zodalirika katundu katundu lonse.
Njira Zolephera ndi Msampha Wabwino Wokwanira
Chimodzi mwamaphunziro okwera mtengo kwambiri ndikungoganiza kuti QT400-18 nthawi zonse ndi chisankho choyenera pazigawo zosafunikira. Ndawonapo mabulaketi ndi ma levers opangidwa kuchokera pamenepo akulephera kutopa, osati chifukwa katunduyo anali wokwera kwambiri, koma chifukwa cha chidwi chosadziwika. Matrix a ferritic ali ndi mphamvu zochepa zotopa poyerekeza ndi mphamvu zake zolimba. Ngati pali ngodya yakuthwa kapena chizindikiro cha makina pamalo opsinjika kwambiri, mng'alu ukhoza kuyambitsa. Kalasi ngati QT500-7, yokhala ndi pearlitic kapangidwe kake, nthawi zambiri imakhala ndi kutopa kwapang'onopang'ono pazigawo zodzaza ndi mphamvu, ngakhale zotalikirapo pang'ono.
Msampha wina ndi kutsika kwa kutentha. Ngakhale kuti chitsulo cha ferritic ductile chimakhala ndi mphamvu zotsika kutentha nthawi zambiri, chitsulo chosapanga bwino chokhala ndi zonyansa zambiri kapena micro-shrinkage chikhoza kukhala chophwanyika. Tinali ndi mlandu ndi nyumba zamakina zakunja zomwe zidasweka ndi kuzizira. Zinthuzo zidatsimikiziridwa ngati QT400-18, koma kusanthula kulephera kunawonetsa kuchulukitsitsa kwakukulu kwa ma oxide inclusions omwe amakhala ngati oyambitsa kupsinjika. Opangawo adagwiritsa ntchito ndalama zambiri zosakonzedwa bwino. Phunziro linali lodziwikiratu: mulingo wa giredi supangitsa kuti apolisi asungunuke. Mufunika ogulitsa omwe ali ndi zowongolera zolipiritsa komanso njira zosungunulira zosungunula.
Apa ndipamene ukadaulo wochulukira wa zinthu zoperekedwa umafunikira. Kampani yomwe imagwiranso ntchito ndi ma aloyi apadera, monga ma aloyi opangidwa ndi faifi tambala kapena ma cobalt omwe atchulidwa mu mbiri ya QSY, mwina ali ndi njira yowongolera yowongolera ng'anjo ndi kuwongolera chemistry pagulu lonselo. Chilango chimenecho chimasefa mpaka kupanga magiredi wamba ngati QT400-18, zomwe zimapangitsa chitsulo choyera, chodalirika.
Malingaliro Omaliza: Ndi Kukambitsirana, Osati Kulankhula Mongolankhula
Chifukwa chake, kutchula QT400-18 sikuyenera kukhala mzere umodzi pazojambula. Kuyenera kukhala chiyambi cha zokambirana ndi katundu wanu. Mafunso ndi ofunika: Kodi cholinga chanu cha microstructure cha giredi iyi ndi chiyani? Kodi mumawongolera bwanji pa geometry ya gawo langa? Kodi mulingo wa kuuma kwanu ndi wotani? Kodi mungapereke malingaliro a makina? Mayankho angakuuzeni zambiri za momwe gawo lanu likugwirira ntchito padziko lonse lapansi kuposa momwe deta idzachitire.
Mtengo wa katundu wophatikizika—umene ungatsatire zinthu kuchokera ku ng’anjo kupita ku mbali yomalizidwa yopangidwa ndi makina—sanganenedwe mopambanitsa. Amawona mndandanda wonse woyambitsa-ndi-zotsatira. Vuto la makina limabwereranso ku nkhani yoponya, yomwe imabwereranso ku gawo la ndondomeko. Ndemanga zotsekeka ndi momwe mumapezera kusasinthika. Kwa zinthu monga QT400-18, pomwe zenera la katundu ndi lalikulu ndipo mdierekezi ali muzinthu zazing'ono, kusasinthasintha ndiko kusiyana pakati pa chigawo chomwe chilipo ndi chomwe chimagwira ntchito modalirika.
Pamapeto pake, QT400-18 ndi kavalo wosunthika, koma siwokhazikika. Ndi kusankha komwe kumafuna kumvetsetsa ndi kuwongolera. Chitani izi ndi ulemu wotero, gwirizanani ndi maziko omwe amachitanso chimodzimodzi, ndipo mupeza zinthu zolimba, zosinthika zomwe mukuzidalira. Chilichonse chocheperapo ndikungoyembekeza kuti manambala omwe ali pamapepala amatanthauzira kuchitsulo chomwe chili m'manja mwanu.
