Mukamva 'ductile iron investment casting', chinthu choyamba chomwe chimabwera m'maganizo ndi chinthu chonyezimira: mphamvu yayikulu, ductility yabwino, kukana kuvala. Ndipo inde, izo zonse ndi zoona pa pepala. Koma pamene nkhani yeniyeni imayambira ndi pamene mukuyesera kuti mukwaniritse zinthuzo nthawi zonse muzinthu zovuta, zowonda kwambiri kapena thupi la valve lapamwamba kwambiri. Ndipamene bukulo limathera ndipo maziko apansi amatenga mphamvu. Oyang'anira ambiri ofufuza akuganiza kuti ndikungosankha kalasi yazinthu - titi, QT600-3 kapena china - ndipo zina zonse ndi matsenga. The matsenga weniweni, kapena zambiri mutu, ndi mu ndondomeko kugwirana chanza pakati pa kuponya ndalama njira ndi zitsulo za ductile iron palokha.
Njira Yogwirirana Chanza: Kumene Sera Imakumana ndi Metallurgy
Kuyika ndalama kumakupatsani ufulu wodabwitsa wa geometric. Tikukamba za magawo omwe ali ndi ndime zamkati zomwe sizingatheke kuzipanga makina kapena kupanga ndi mchenga. Koma ndi chitsulo cha ductile, nthawi yomweyo mumamangidwa ndi kulimba. The chipolopolo nkhungu ku kuponya ndalama ndondomeko ndi okhwima, pafupifupi osakhululuka. Mosiyana ndi mchenga, supereka. Kwa chitsulo chotuwa, nthawi zambiri zimakhala zabwino. Koma kwa ductile, muyenera nkhungu kuti igwirizane ndi kukula pang'ono panthawi ya mapangidwe a graphite nodule. Ngati sichoncho, mumapeza shrinkage porosity, kapena choyipa kwambiri, kuzizira koopsa komwe mumatha kukhala ndi ma carbides m'malo omwe mudapanga kuti mukhale otheka.
Ndikukumbukira pulojekiti yopangira ma hydraulic component, nyumba yophatikizika yokhala ndi ma flange ophatikizika. Mapangidwewo anali owoneka bwino pamisonkhano, nkhani yabwino kwambiri kuponya ndalama. Ife tinazinena izo, tinalandira dongosolo. Zovala zoyambirira zimawoneka zokongola - zowoneka bwino, zowoneka bwino. Koma pambuyo pa chithandizo cha kutentha (ferritizing anneal, kunena ndendende), kulephera kuyesa kuthamanga kunali kopanda pake. Kuchucha paliponse. Vutolo? Tinapanga ma geting ndi okwera ngati momwe tingachitire popangira zitsulo. Chitsulo sichimadya ngati chitsulo. Kukula kwa ma graphite kungathandizedi kudzidyetsa, koma pokhapokha mutalola. Tinali titakwera kwambiri, ndikupanga malo otentha omwe adapangitsa kuti tichepetse ngakhale kukula. Ndinayenera kubwereranso, yerekezeraninso ndi magawo oyenera achitsulo a ductile, sinthani kukhala zokwera zazing'ono, zoyikidwa bwino. Zinathandiza, koma zinatitengera miyezi iwiri.
Ichi ndiye maziko ake. Inu simungakhoze kungotenga kuponya ndalama ndondomeko wokometsedwa zosapanga dzimbiri ndi kuthamanga ductile chitsulo kudzera mmenemo. Matenthedwe onse, kuchokera ku chipolopolo chisanatenthedwe mpaka kutentha mpaka kuzizira mu chipolopolo, chiyenera kuganiziridwanso kuti spheroidal graphite ipangidwe. Kuchiza kwa magnesiamu palokha ndi chinthu chosasinthika - kuzimiririka ndikodetsa nkhawa kwambiri, ndipo pakapita nthawi kuti muthire gulu la zipolopolo zovuta, nkhungu yanu yomaliza ikhoza kukhala yopanda kuchuluka kwa nodule ngati yanu yoyamba ngati simusamala.
Zinthu Zakuthupi: Si Chitsulo Chabe
Ngakhale mkati mwa chitsulo cha ductile, zosankha za alloy zopangira ndalama zimakhazikika. Zomwe zili mu silicon ndizofunikira kuti madzi azitha kudzaza magawo oondawo, koma okwera kwambiri ndipo mumakhudza ductility ndikulimbikitsa ferrite, zomwe sizingakhale zomwe mukufuna pazovala. Pang'ono ndi mkuwa kapena nickel kuti pearlite akhazikike? Nthawi zambiri ndikofunikira, koma ndiye muyenera kuyang'anira tsankho m'magawo ovuta. Timagwira ntchito makamaka ndi magiredi monga 450-10, 500-7, ndi 600-3, koma zenera lenileni la chemistry lomwe timayendetsa magawo opangira ndalama ndi lolimba kuposa zofanana ndi mchenga.
Ndimayang'ananso gulu la zopangira pompo kuchokera kwa wothandizira wina posachedwapa - gawolo linali la ntchito zowononga, kotero adatchula SiMo ductile iron (silicon-molybdenum alloy). Kusankha bwino kutentha ndi dzimbiri. Koma magawo omwe adayikapo ndalama adawonetsa kusweka msanga mu labu. Wolakwa? Molybdenum, yomwe kale inali yolimba ya carbide, idadzipatula m'miyendo yopyapyala, yoziziritsidwa mwachangu ya impeller, ndikupanga madera osalimba. Mtundu wa sand-cast, womwe ukuzizira pang'onopang'ono, unalibe vuto ili. Kukonzekera sikunali kusintha kwa chemistry, koma njira yoyamba: kusintha chipolopolo kuti chichepetse pang'ono kuzizira m'malo ovutawo. Ndi zosintha za mphindi izi zomwe zimalekanitsa gawo logwira ntchito kuchokera ku lodalirika.
Apa ndipamene maziko a foundry ali chilichonse. Kampani ngati Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd., ndi zaka makumi atatu chipolopolo nkhungu kuponyera ndi kuponya ndalama, akanamanga laibulale yamitundumitundu. Amadziwa, mwachitsanzo, kuti pabulaketi yachitsulo yakhoma yopyapyala yomwe imafuna katundu wa 500-7, angafunikire kuyang'ana kumapeto kwamtundu wa magnesium ndikugwiritsa ntchito inoculant inayake yokhala ndi liwiro lothamanga kwambiri kuti titsimikizire kuti tinthu tating'onoting'ono tating'ono tating'onoting'ono tazigawo zozizira kwambiri, kupewa ma carbides. Izo siziri pa pepala lililonse; zili m'mapepala awo.
Zotsatira za Machining: Osazichepetsa
Ubwino waukulu wakuponya ndalama ndi mawonekedwe apafupi, omwe amachepetsa mtengo wamakina. Koma kuchepetsa sikutanthauza kuthetsa. Pafupifupi ma ductile iron castings amafunikira makina ena: nkhope za flange, ma diameter ang'onoang'ono, ulusi. Nawu msampha wina: kulimba kwa as-cast surface. Chifukwa chipolopolo cha ceramic chimaziziritsa chitsulo mwachangu, khungu loponyera limatha kukhala lolimba ndipo limatha kukhala ndi wosanjikiza pang'ono wa decarb kapena kuphatikiza kwa oxide. Ngati pulogalamu yanu ya CNC itengera kuuma kofanana ndikungopitilira, mudzawotcha zoyika pachiphaso choyamba ndikumaliza bwino pamagawo omangika.
Tinaphunzira izi movutikira pakuyenda kwa matupi a valve. Mabowo amafunikira kumaliza bwino kuti asindikize kukhulupirika. Kuyendera nkhani yoyamba kunali kwangwiro. Koma popanga zinthu zambiri, zida zidakhala zosokonekera, ndipo tidayamba kuwona kung'ambika pamabowo. Vutoli linali kusinthika kwapang'onopang'ono pakuuma kwa khungu kuchokera kumagulu kupita kumagulu, kutengera kusiyana pang'ono pakuchotsa zipolopolo ndi kutentha kusanachitike. Yankho lake linali njira yokhazikika yokhazikika yokhala ndi choyikapo cholimba cha geometry, makamaka kuti adutse khungu losinthika, ndikutsatiridwa ndi chiphaso chomaliza. Idawonjezera masekondi 45 kunthawi yozungulira, koma idapulumutsa ndalama zambiri m'magawo otayika ndi zida.
Ichi ndichifukwa chake nyumba yophatikizika yomwe imapanga zonse zoponyera ndi zida CNC makina m'nyumba, monga momwe QSY imatchulira muzochita zawo, ili ndi mwayi wapadera. Gulu lawo lopanga makina si gulu losiyana; iwo akudyeranso molunjika ku maziko. Akhoza kunena kuti, Hei, batch iyi ikudula mosiyana, ndipo mazikowo atha kutsata kutentha kwa ladle kapena batch ya inoculant. Mayankho otsekekawa ndi ofunikira kuti agwirizane panjira yofunikira yazinthu ngati izi.
Pamene Kuwala (Ndipo Pamene Kuchoka)
Ndiye liti ductile iron Investment cast kusankha kolondola mtheradi? Ndi golide kwa zinthu zovuta, zotsindika zomwe zimafunikira kuchepetsa thupi komanso kukhulupirika kwambiri, kumene makina opangidwa kuchokera ku chipika cholimba kapena kufota angakhale okwera mtengo kwambiri. Ganizirani mabulaketi am'mlengalenga, maulalo oyimitsa magalimoto ochita bwino kwambiri, kapena zida zina zachipatala zomwe zimafunikira mphamvu ndi kusabereka. Kumapeto kwapamwamba ndi kulondola kwake kumatsegula zitseko zomwe kuponyera mchenga sikungathe.
Koma muyenera kudziwa nthawi yoyenera kunena kuti ayi. Ngati mbaliyo ndi yokhuthala komanso yachulukidwe, kutenthedwa kwa kutentha kuchokera ku chipolopolo cholimba kungakhale kovuta, ndipo mungakhale bwino ndi mchenga wabwino kwambiri. Ngati gawolo likufuna 100% ductility (monga 18% elongation giredi), kuwongolera njira kuyenera kukhala kwangwiro, ndipo mtengo wake sungakhale woyenera. Ndipo ngati voliyumu yapachaka ifika mazana masauzande, mtengo wagawo limodzi la sera ndi chipolopolo cha ceramic zitha kukupangitsani kuti mupite ku nkhungu yokhazikika kapena ngakhale kufa.
Nthawi ina ndinakambirana za ntchito yokonza bokosi la gear lolemera kwambiri. Mapangidwewo anali ovuta kwambiri ndi nthiti zamkati. Katswiriyu anali wotsimikiza za kugwiritsa ntchito chitsulo choponyera ndalama kuti chikhale cholondola. Titawonanso zigawo zakuya 50mm, tidalangiza motsutsana nazo. Kuopsa kwa kuchepa komanso kukwera mtengo kwa chitsanzo chachikulu cha sera ndi zipolopolo zinali mbendera zofiira. Tinakonza zosakanizidwa: zopangira mchenga zowoneka bwino kwambiri pagulu lalikulu, zokhala ndi mawonekedwe ofunikira okha monga zoyikapo zitsulo zotayirira, zomangika zomwe zimatha kuwotcherera kapena kumangirizidwa. Zinagwira ntchito. Nthawi zina kugwiritsa ntchito bwino kwaukadaulo ndiko kudziwa komwe mungagwiritse ntchito pang'ono chabe.
The Realistic Supply Chain: Kupeza Bwenzi Loyenera
Ichi si chinthu. Simungagule pa Alibaba pamtengo pa kilogalamu. Mukuyang'ana maziko omwe samangolemba ductile iron Investment cast monga luso, koma akhoza kukuwonetsani mbiri yakale. Funsani zitsanzo za magawo omwe ali ndi makulidwe ofanana ndi ovuta. Funsani za kuwongolera kuwerengera kwa nodule, machitidwe awo ochiritsira kutentha (monga-cast, annealed, chozimitsidwa & kupsya mtima?), ndi kuthekera kwawo kwamkati kwa NDT. Kodi angachite X-ray yeniyeni kapena ultrasonic pamadera ovuta? Kodi amayendetsa bwanji kuthamangitsidwa ndi mageti pa brittle shell? Kodi iwo ali m'nyumba CNC makina kutsimikizira zomwe akupanga?
Kutalika kwa moyo wa ogulitsa nthawi zambiri kumalankhula zambiri. Kampani yomwe ikugwira ntchito kwa zaka zopitilira 30, monga Mtengo wa QSY, mwachiwonekere adawona zolakwika zilizonse zomwe angaganizire ndipo apanga zowongolera munjira yawo. Kutchulidwa kwawo kogwira ntchito ndi ma aloyi apadera monga opangidwa ndi faifi tambala kumawonetsanso pamlingo wowongolera zitsulo zomwe zimamasulira bwino ku zofunikira zenizeni za chitsulo cha ductile. Amamvetsetsa kuti kutsanulira kwa nickel alloy ndi chitsulo cha ductile ndi dziko losiyana, koma chilango chowongolera ndondomeko ndi chofanana.
Pamapeto pake, wopambana ductile iron Investment cast ndi umboni wa uinjiniya wokhazikika. Si luso flashiest, koma pamene kudina, umabala zigawo kuti zonse kaso kamangidwe ndi wankhanza ntchito. Chofunikira ndikuyandikira osati ngati choloweza m'malo chosavuta, koma ngati njira yodzipatulira, yokhazikika yopangira ndi malamulo ake. Musanyalanyaze malamulowo, ndipo mudzapeza zodula. Alemekezeni, gwirizanani ndi maziko omwe amapezadi kugwirana chanza, ndipo mutha kutsegula ma geometri ndi magwiridwe antchito omwe ndi ovuta kukwaniritsa mwanjira ina iliyonse.
