Ziwalo zazitsulo zotayira zimathetsa mavuto adziko lapansi - kuchucha ma hydraulic manifolds, nyumba zapampopi zosweka pansi pa kukakamizidwa kwa mipiringidzo 300, ma winch shaft akulephera pakatha miyezi 18 m'malo opopera mchere. Izi si zolephera zamalingaliro. Tayeza ma microcracks mu AMS 5387 cobalt alloy nozzles omwe abwerera kuchokera ku zida zobowola kunyanja. Tasintha njira zochizira kutentha titatha kuwona kusuntha kwapampu mu T800-based piston pampu cylinder housings panthawi yoyesera njinga zamoto. Zigawo zazitsulo zimachita bwino pokhapokha zitsulo, geometry, ndi kupanikizika kwa ntchito zimagwirizana - osati pamene zolemba zimawoneka bwino pamapepala.
Chifukwa chiyani "Kungoponya" Sikokwanira pa Mishoni-Zofunikira Systems
Akatswiri ambiri amadziwa kuti mchenga umagwira ntchito zazikulu. Kupereka ndalama kumapereka kulolerana kocheperako. Koma owerengeka amazindikira kuti kusuntha kwa nkhungu kwa 0.05 mm mosavuta kapena 2 ° C kupatuka mukuthira kutentha kumayambitsa porosity m'matupi othamanga kwambiri. Tawonapo zitsulo zitatu zofananira - mawonekedwe omwewo, gulu lofananira - lalephera kuyesa kutayikira chifukwa wina adaziziritsa mphindi 12 mwachangu pansi pa shakeout. Ndicho chifukwa chake kulondola sikukhudza miyeso yomaliza yokha. Ndi za kuwongolera ma gradients olimba, kufanana kwa kapangidwe ka tirigu, ndi kugawa kwapang'onopang'ono kotsalira * makina asanayambe.
Kuwongolera kumeneko kumayamba ndi kufufuza zinthu. Ingot iliyonse ya cobalt-nickel alloy yomwe timapanga imakhala ndi malipoti oyesa mphero: kulimba kwamphamvu pa 650 ° C, kutalika pambuyo pakusweka, kukana kwa dzimbiri kwa ASTM G28A. Palibe gulu lomwe limalowa pakuponya popanda kutsimikizira zomwe zili mu kaboni zimakhala mkati mwa ± 0.02% ya AMS 5387 spec. Chifukwa chiyani? Chifukwa 0.03% ya carbon yochuluka imatembenuza cobalt alloy 6 kukhala brittle, matrix ong'ambika pansi pa cyclic loading.
Malo athu ogwirizana ndi ISO amayendetsa mizere yofananira ndi CNC-osati ngati madipatimenti osiyana, koma ngati magawo olumikizana. Kuponyedwa kwachitsulo kumafika pa cell yopangira makina ndi kuuma kwake komwe kumapangidwa ndi laser profilometry. Pulogalamu ya CNC imangosintha kuchuluka kwa chakudya m'magawo omwe shrinkage yaying'ono idapanga ma spikes olimba. Kuphatikizikaku kumalepheretsa kuyankhulana kwa zida zomwe zikanasokoneza kumaliza kwa 3.2 µm Ra komwe kumafunikira pamalo osindikizira a valve.
Kumene Kutayira Kwayekha Kumalephera—ndi Momwe Kulondola Kumasinthira Zotsatira
Ena angatsutse kuti: "Ngati ikukwanira ndipo sitayikira, bwanji uinjiniya wopitilira muyeso?" Chifukwa njira zolephera zimabisala muzochitika zenizeni. Maziko a pampu yachitsulo yachitsulo amatha kukhala ndi torque panthawi yoyeserera fakitale - koma amanjenjemera pa 1,750 rpm muutumiki wakumunda, ndikumafulumizitsa kuvala ndi 40%. Kuponyera kwathu kwachitsulo kumagwiritsa ntchito nodular graphite morphology yoyendetsedwa ku Type VI pa ASTM A247, kuchepetsa kufalikira kwa vibration ndi 62% pakuwunika kwa chipani chachitatu.
Mofananamo, "kuponya zitsulo zosapanga dzimbiri" kumatanthauza pang'ono popanda kufotokoza khalidwe la kalasi. 316 zosapanga dzimbiri zimalephera mwachangu m'madzi amafuta am'munda wamafuta okhala ndi chloride. Zopangira zathu zazitsulo zosapanga dzimbiri zimagwiritsa ntchito 2507 super duplex yosinthidwa-25% chromium, 7% faifi tambala, 4% molybdenum-yokhala ndi gawo la ferrite-austenite lomwe limasungidwa mpaka 45-55% kudzera pakuwunika kwa nthawi yeniyeni ya arc panthawi yosungunuka. Zotsatira: zero potchinga pambuyo pa maola 2,000 potengera mpweya wowawasa.
Sitimangokwaniritsa zofunikira - timapanga mapu kuti tigwire ntchito. AMS 5387 cobalt alloy 6 pampu magawo amakumana ndi yankho la annealing pa 1,175 ° C ± 5 ° C, kenako kuzimitsa mwachangu kuti atseke kukhazikika kwa gawo la gamma. Pambuyo popanga makina, gawo lililonse limayendera mayendedwe a fulorosenti kuti azindikire zocheperapo kuposa 0.1 mm - chifukwa cholakwika chimodzi pakhosi pakhosi chimatha kuwononga 3 × mwachangu pansi pa abrasive slurry flow.
Zinayi Zosakambirana Pamene Mukupeza Zida Zachitsulo Zotayirira
Kusankha ogulitsa kumafuna zambiri kuposa kutchula nthawi zotsogolera. Kutengera zaka 12 zothandizira ma OEMs a hydraulic ndi omanga zida zapansi pamadzi, macheke anayiwa amalekanitsa mabwenzi odalirika ndi ogulitsa malonda:
- Chitsimikizo cha zinthu sizingakambirane-osati "imagwirizana ndi ASTM A48," koma mipiringidzo yotsimikizika yoyesedwa pagawo lililonse, ndikulumikizana kolimba kumatsimikiziridwa m'magawo onse oponya.
- Dimensional control ikuphatikizapo monga-cast state- Malipoti a CMM akuyenera kuwonetsa ndalama zocheperako zomwe zimagwiritsidwa ntchito pamabowo ovuta komanso nkhope zomata, osati kungomaliza.
- Zolemba zachitetezo chapamwamba ndizofunikira kwambiri kuposa manambala a Ra- timafuna zithunzi za SEM za malo opangidwa ndi makina owonetsa kusakhalapo kwa zigawo zosinthidwa kapena kung'ambika pang'ono pamalo ovala kwambiri ngati ma roller a winch center shaft.
- Tsatanetsatane imafikira kumayendedwe ochizira kutentha-matchati a kutentha kwa nthawi omwe amaikidwa pa ng'anjo iliyonse, osati "kutenthedwa pamtundu uliwonse."
Wopanga magalimoto aku Europe atasinthira ku mapulagi athu a cobalt alloy, makina awo opangira ma winchi a MTBF adalumpha kuchoka pa 4,200 mpaka 11,800 maola ogwirira ntchito. Osati chifukwa pulagi inali "yamphamvu" - koma chifukwa njira yathu yoponyera inathetsa microporosity pa plug-to-housing interface, kuteteza electrolytic corrosion m'malo otentha otentha.
Zida Zachitsulo Zotayira Ndizo Maziko—Osati Zongoganizira Pambuyo pake
Makina ochita bwino kwambiri amalephera m'malo olumikizirana: komwe nyumba zoponyedwa zimakumana ndi shaft, pomwe aloyi imakumana ndi chisindikizo, pomwe kukulitsa kwamafuta kumakumana ndi kudzaza kwa bawuti. Zigawo zachitsulo zotayira zimakhazikika pamakomedwewo. Kupambana kwawo kumadalira zisankho zomwe zidapangidwa asanathire koyamba - kusankha kwazinthu zomwe zimasinthidwa kukhala madzimadzi, kapangidwe kake kofanana ndi kusintha kwa makulidwe a khoma, ndalama zolipirira makina potengera kuyerekezera kolimba - osati kuwongolera pambuyo poponyedwa.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. amamanga zitsulo zotayidwa kuti zigwiritsidwe ntchito pomwe m'malo mwake zikutanthauza kutsika mtengo $27,000/ola. Zomwe zimakakamiza kulangidwa: palibe njira zazifupi pakutsimikizira zitsulo, palibe zongoganiza za chithandizo cha kutentha "chokhazikika", palibe kulolerana popanda kukonzekera kwa GD&T. Chotsatira? Ma valve opanikizika omwe amapulumuka mizungu 50,000 pa bar 350, nyumba za silinda zimasungabe kukhazikika pambuyo pa zaka 15 zogwira ntchito mosalekeza, ma winch shafts amapereka torque yosasinthika mu -40 ° C Arctic mikhalidwe.
Tsogolo limakhala la zitsulo zopangidwa ndi zitsulo zopangidwa - osati zopangidwa - ndi zolinga zogwira ntchito zophikidwa m'malire onse ambewu. Izi zimayamba ndikufunsa osati "Kodi zitha kuponyedwa?" koma “Kodi ziyenera kukhala bwanji—ndipo kodi zimenezo zimafuna chiyani kuchokera ku sungunuka, nkhungu, ndi makina?”
