Pamene mainjiniya afotokoza colloidal silica Investment casting pazigawo zazitsulo zapamwamba kwambiri, samangosankha njira-akusankha chitsimikizo cha ntchito. Dimensional bata pansi pa matenthedwe apanjinga. Kumaliza kwapamwamba komwe kumathetsa kugaya pambuyo poponya. Kuwongolera kwa Microstructure mu cobalt alloys komwe malire aliwonse ambewu amafunikira. Izi sizinthu zongoyerekeza. Ndizotsatira zomwe timaziwona tsiku lililonse m'malo athu ogwirizana ndi ISO ku Qingdao-kumene gulu lililonse la AMS 5387 cobalt alloy pump housing kapena T800 nozzle limadutsa maulendo atatu odziimira okha a CMM asanachoke pamzere.
Chifukwa chiyani ma colloidal silica Investment casting amapereka pomwe njira zina zimayimitsidwa
Colloidal silica slurries amapanga zipolopolo za ceramic zolimba, zolimba kwambiri kuposa zomangira zachikhalidwe za ethyl silicate. Mphamvu imeneyo imamasulira mwachindunji kukhala ming'alu ya zipolopolo zocheperako pakuwotcha ndi kuwombera - komanso kulekerera kusokoneza m'nyumba zokhala ndi mipanda yopyapyala zomwe zidavotera 420 bar hydraulic service. Tayeza kukula kwa zipolopolo pa 0.012% pa ° C mpaka 1100 ° C; ochita nawo mpikisano pogwiritsa ntchito magalasi amadzi kapena makina opangidwa ndi aluminiyamu nthawi zambiri amapitilira 0.035%. Kusiyana kumeneko? Ndilo kusiyana pakati pa kugunda ± 0.05 mm GD&T panyumba yapampu ya piston ya 320 mm - ndikuyichotsa pambuyo poyang'anira nkhani yoyamba.
Sitiyendetsa silika ya colloidal ngati mzere woyimirira. Imaphatikizidwa ndi makina olondola a CNC mumayendedwe amodzi: ponyani geometry pachimake, makina osindikizira ofunikira ndi mawonekedwe a ulusi, kenako gwiritsani ntchito kutentha koyendetsedwa * popanda kuphwanya kutsata *. Palibe ma handoffs. Palibe kuzindikiritsanso zinthu. Gawo lirilonse limakhala ndi ID ya laser-etched lot yolumikizana ndi ma cert, zipolopolo za zipolopolo, ma chart a ng'anjo, ndi malipoti omaliza a CMM.
Kuphatikizana uku kumathetsa vuto lenileni la ululu: warpage muzitsulo zazitsulo zamtundu wapamwamba. Makasitomala nthawi ina adatibweretsera valavu yachitsulo chosapanga dzimbiri yomwe idapotoza 0.18 mm pambuyo pochepetsa nkhawa - chifukwa chaogulitsa, kutumizidwa, ndikulola kasitomala kusamalira kutentha padera. Tidabwerezanso pogwiritsa ntchito chakudya chamtundu wa T800, koma tidagwira gawolo mung'anjo yathu yovumbula titangotha kugwedeza. Kupotoza komaliza: 0.023 mm. Osati matsenga. Kungoyang'anira mbiri yamatenthedwe-ndi umwini wathunthu.
Zomwe zimapangitsa fakitale yowona ya colloidal silica Investment casting kukhala yosiyana
Masitolo ambiri amadzitcha "mafakitole opangira ndalama." Ndi ochepa okha omwe ali ndi mapangidwe a colloidal silica slurry, ma protocol owumitsa zipolopolo, ndi mbiri yapamsewu yomwe imatanthawuza kupambana ndi ma superalloys. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., timayesa kukhuthala mlungu uliwonse pogwiritsa ntchito ma viscometers a Brookfield, kuwunika pH kutsetsereka mu nthawi yeniyeni, ndikukana batchi iliyonse ya slurry kunja kwa 9.2-9.6 pH-ngakhale ikuwoneka bwino. Chifukwa chiyani? Chifukwa pH imasinthira kusintha silika particle zeta kuthekera, komwe kumasintha kachulukidwe ka chipolopolo, permeability, ndipo pamapeto pake, roughness (Ra) pazigawo zomalizidwa. Tawonapo Ra kudumpha kuchokera ku 1.8 µm kufika ku 4.3 µm pamene pH idasunthika kufika ku 9.8.
Timaonanso kuwombera zipolopolo ngati zitsulo, osati zoumba zokha. Ma kilns athu amathamanga pa ≤60 ° C / ola mpaka 1050 ° C, gwirani kwa mphindi 90, kenako ozizira pa ≤40 ° C / ora. Kuzungulira kwapang'onopang'ono kumeneku kumalepheretsa kuchepa kwapang'onopang'ono m'magawo okhuthala a cobalt-nickel castings. Pampu imodzi yaku Europe OEM idasinthira kwa ife pambuyo poti ogulitsa awiri am'mbuyomu adapereka ma hubs osweka a AMS 5387. Kusanthula kwawo komwe kudayambitsa kunawonetsa kuphulika kwa kutentha komwe kumayambira pazigoba kupita kuzitsulo. Mbiri yathu yowombera idawathetsa. Osati mwa kusintha aloyi—koma mwa kulemekeza mmene chigobacho chimapuma.
- Zopangira zovomerezeka zokha - koyilo iliyonse yomwe ingatsatidwe ndi malipoti a mayeso a mphero
- Palibe kupanga kapena kuchotsera zipolopolo zocheperako - 100% kuwongolera mkati mwanyumba
- Ndemanga ya kamangidwe ka GD&T-choyamba: timayika milingo yolembera pansi pa 0.5 ° isanayambe kugwiritsa ntchito
- Kutsimikizira komaliza kwapamwamba pa ma profilometer owoneka - osati kungoyang'ana kowoneka
Ntchito zenizeni padziko lapansi pomwe kuponyera kwa silika ya colloidal kumatsimikizira kuti sizingatheke
Ma valve opanikizika amafuta akunyanja & gasi wosiyanasiyana amafuna kuti asatayike pa -46°C mpaka +121°C. Kuponyera mchenga sikungathe kusunga mpando wa 0.02 mm wofunikira. Kuyika ndalama zokhazikika kumalimbana ndi kuchuluka kwamafuta a ASTM A494 M35-1 nyumba. Colloidal silica imachita zonse ziwiri: kulolerana kolimba *ndi* kukhulupirika kopanda ming'alu kudutsa kutentha kwambiri.
Posachedwa tapanga ma roller apakati opangira makina opangira ma winch - magawo okhala ndi 220 mm OD, makulidwe a khoma la 45 mm, ndi geometry yamkati ya spline. Makasitomala amafunikira kuuma ≥58 HRC *kupyolera mu gawo*, osati kungowumitsidwa. Colloidal silica inathandiza makulidwe a chipolopolo chofanana, mitengo yolimba yokhazikika, ndi zero porosity m'malo ovuta kunyamula katundu. Nthawi yopangira makina idatsika ndi 37% poyerekeza ndi zomwe zidasokonekera pamchenga chifukwa tidapereka mawonekedwe apafupi ndi ukonde ndikugawa masheya.
Milandu ina yotsimikiziridwa yogwiritsidwa ntchito ndi:
- Cobalt alloy nozzles zamapampu othamanga kwambiri abrasive slurry (kalasi ya T800, 62-65 HRC)
- Pampu maziko amafuna flatness ≤0.08 mm kutalika 850 mm
- Zonyamulira ndodo za pisitoni zosakhazikika zokhala ndi mayendedwe ozizirira ophatikizika - oponyedwa, osawotchedwa
Kusankha fakitale yanu yopangira chuma cha colloidal silica sikutanthauza mphamvu-ndi za luso
Ngati gawo lanu likufuna AMS 5387, T800, kapena UNS R30005-ndipo liyenera kupulumuka 10,000+ kupanikizika popanda kuyambitsa microcrack-mufunika zambiri kuposa maziko. Mukufunikira mnzanu yemwe amachitira silika wa colloidal osati ngati binder, koma ngati zitsulo zosinthika. Ndani amatsimikizira kulimba kwa chipolopolo ndi mayeso oponderezedwa a ASTM C133-osati kungoyang'ana kowoneka. Yemwe amalumikiza vuto lililonse la kuponyera ndi kusintha kwa magawo ena: zaka za slurry, kuchuluka kwa dewaxing, ngakhale chinyezi chozungulira panthawi yoviika.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. imagwira ntchito mwanjira imeneyo-osati chifukwa ndiyosavuta, koma chifukwa zida zofunikira kwambiri sizisiya malo ongoganizira. Timasindikiza mawindo athu a colloidal silica process. Timagawana deta yachipolopolo ndi makasitomala. Timalola mainjiniya awone zipika zathu za CMM. Kuwonekera kumeneko si malonda. Ndimomwe mumatsimikizira kuti "colloidal silica investment casting fakitale" pamapepala imagwirizana ndi zomwe zimayenda pansi pashopu.
Kwa zigawo zazitsulo zolondola kumene kulephera sikungatheke, fakitale yoyenera sikuti imangoponyera zitsulo. Imaponya chidaliro.
