Nyumba ya pampu ya hydraulic ikalephera pansi pa 350-bar pressure, kapena cobalt alloy nozzle imang'ambika pambuyo pa maola 200 muutumiki wa gasi wowawasa, chifukwa chake sichimapangidwa kawirikawiri - ndicholondola. Osati "kulekerera kolimba," koma kukhazikika kwapang'onopang'ono kuzungulira kwamafuta, kufananiza kwapang'onopang'ono kudutsa magawo okhuthala, komanso kukhulupirika kwapamtunda komwe kumakana kukokoloka ndikusunga ma geometry. Ichi ndichifukwa chake mainjiniya omwe amapeza zida zachitsulo zofunikira kwambiri samasaka "opereka othandizira." Amafufuza a mkulu mwatsatanetsatane kuponya fakitale—umodzi umene umaona zitsulo, makina, ndi kuyendera monga maphunziro osalekanitsidwa.
Chifukwa chiyani "Kulondola Kwambiri" Sikungokhala Nthawi Yotsatsa - Ndi malire a Njira
Zambiri zoyambira zimayendetsa kutsika kwapakati pa ± 1.5 mm pa 100 mm. Fakitale yowona yolondola kwambiri imakhala ndi ± 0.15 mm pamalo ovuta kwambiri - ngakhale pazitsulo zachitsulo za 45-kg zokhala ndi makhoma a 12-mm. Bwanji? Mwa kutseka zosinthika musanatsanule: kachulukidwe ka nkhungu koyezedwa mu kPa, ma binder machiritso amatsimikiziridwa pa batch iliyonse, ndi kayesedwe ka zitseko kotsimikiziridwa motsutsana ndi nthawi yeniyeni yodzaza (yosayerekezedwa). Tawona makasitomala akukana magawo osati chifukwa chowoneka bwino, koma chifukwa ma scans a CMM adavumbulutsa kusokonezeka kwa 8-µm kotsalira pambuyo pa chithandizo cha kutentha - kupotoza kosawoneka ndi diso kapena caliper, koma kokwanira kusuntha ma valve a valavu ndi 0.003 °. Ndiko kumene kulondola kumathera ndi kudalirika kumayambira.
Maluso Anayi Omwe Amalekanitsa Kuponya Kwapamwamba Kwambiri kuchokera ku Standard Foundry Work
Fakitale yowongoka bwino kwambiri simangoponya. Ili ndi tcheni chathunthu-kuchokera pa kusankha kwa aloyi mpaka kutsimikizira magwiridwe antchito. Izi ndi zomwe zikutanthauza muzochita:
- Cobalt-nickel mastery-osati kungogwira AMS 5387, koma kulosera zomwe zimachitika. T800 aloyi si "zovuta makina." Ndiwosakhazikika kupitilira 650 ° C. Chifukwa chake timatenthetsa nkhungu mpaka 220 ° C ± 5 ° C, zoponya zoziziritsa ku ≤1.2 ° C / min mu ng'anjo zoyendetsedwa ndi mpweya, ndikukonzekera CNC kuvutitsa kusanachitike kupsinjika komaliza. Kudumpha sitepe iliyonse kumawononga ma microcracks omwe amangowonekera pakuyezetsa kwa hydrostatic.
- Kuphatikizika koyima komwe kumalepheretsa kulolerana kukwera. Pamene nyumba ya silinda ya pisitoni imafuna 0.01 mm cylindricity pa 280-mm bore * ndi * 0.05 mm malo kulolerana kwa ulusi 6 wa M12 wokhudzana ndi zobowola, kutulutsa kunja, kukonza makina, ndi kutsiriza kumatsimikizira kugwedezeka. Timaponya, makina, kutentha kutentha, ndikumaliza m'malo amodzi - kugwiritsa ntchito mawonekedwe a CMM omwewo kuti tiwunikenso ndikutulutsa komaliza.
- Kupanga koyendetsedwa ndi GD&T-osati kujambula kutanthauzira. Makasitomala amatitumizira zosindikizidwa zokhala ndi ma callouts a ASME Y14.5-2018: “|POSITION|0.02|A|B|C|.” Sitifunsa "Kodi izi zikutanthauza chiyani?" Timajambula datum iliyonse kuti igwirizane ndi zochitika zenizeni, kutengera kuchotsedwa kwa zinthu zoyipa kwambiri, ndi mikangano ya mbendera *pambuyo pa* kupanga zida. Makasitomala m'modzi waku Europe adasunga $210K pakukonzanso pogwira zolakwika za datum B pakuwunika kwathu kwapang'onopang'ono-masabata atatu chitsulo chisanayambe.
- Kutsata komwe kumayamba ndi ma certs opangira - osati manambala a batch. Kutentha kulikonse kwa cobalt alloy kumabwera ndi kusanthula kwathunthu, lipoti la kukula kwa tirigu, ndi data yoyeserera. Timalowetsa mu dongosolo lathu, kulumikiza ku maere, kenaka timangiriza maerewo ku nambala iliyonse yopangidwa ndi makina. Ngati maziko a pampu alephera pa maola ogwiritsira ntchito 15,000, timapanganso mbiri yonse: tsiku losungunuka, kutentha kwa madzi, kutentha kwapakati, kuzizira, kuuma kwa kuwerenga, ngakhale ID ya opareshoni yomwe inayendetsa makina omaliza a CMM.
Mtengo Weniweni Wopanga "Zabwino Zokwanira" -Ndipo Chifukwa Chake Sichitsika mtengo
Ogula ena amayerekezera makoti kutengera mtengo wagawo lokha. Koma taganizirani izi: pulagi ya $ 480 ya cobalt alloy ku ± 0.5 mm imawononga 37% yocheperapo kuposa yomwe imagwira ± 0.12 mm. Komabe gawo lotayirira limafunikira ma 2.3 owonjezera opangira makina, limapanga zida zowonjezera 41%, ndipo lili ndi 22% yapamwamba kwambiri pakuyesa kutayikira komaliza. Mtengo wonse wofikira? $612. Choyipa chachikulu, kulephera kwamunda kumayambitsa mawaranti apakati pa 4.7 × mtengo wagawo - ndikudalira kuwononga kuti palibe kuchotsera komwe kumabweza. Kulondola sichowonjezera. Ndilo maziko a zochita zodziwikiratu.
Kusankha Fakitale Yanu Yoyimba Mwapamwamba: Macheke Atatu Osakambirana
Musanasaine NDA, tsimikizirani izi—osati m’mabulosha, koma muumboni wapansi pa sitolo:
- Funsani malipoti a CMM pazinthu zitatu zaposachedwa za geometry yomweyo. Yang'anani kupatuka kosasinthika - osati "m'kati mwa zina." Kufalikira kwa ± 0.005 mm kudutsa miyeso ya 20 kumakuuzani zambiri kuposa sitampu imodzi / yolephera.
- Pemphani gawo laling'ono la micrograph la kujambula komaliza. Mapangidwe a njere ayenera kukhala ofanana, dendrite mkono wotalikirana molimba komanso wolunjika-osati mwachisawawa kapena mopatula. Porosity iyenera kukhala yozungulira komanso yodzipatula, yosalumikizana.
- Yang'anani kayendetsedwe kawo ka GD&T. Onani momwe adakhazikitsira gawo lovuta pa CMM. Kodi amagwiritsa ntchito zida za kinematic? Kodi amatsimikizira kuyesedwa kwa kafukufuku * asanafufuze? Ngati adumpha, kulolera kwanu kumakhala kongoyerekeza.
Kudalirika sikutheka ndi kumangitsa mfundo. Zimamangidwa pomvetsetsa momwe chitsulo chosungunula chimayendera, momwe ma alloys amayankhira pamatenthedwe amafuta, komanso momwe mphamvu zamakina zimalumikizirana ndi as-cast microstructure. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. imagwira ntchito ngati fakitale yolondola kwambiri chifukwa chosankha chilichonse, kuyambira kukula kwa njere zamchenga kupita ku spindle RPM, chimapangidwa kuti athetse kusinthasintha, osawongolera. Ntchito yawo imawonekera pamapampu akukankhira madzi a m'nyanja mozama mamita 1,200, ma shafts okweza matani 42 agalimoto zamagalimoto, ndi ma valve omwe amawongolera kuyenda kwa haidrojeni m'malo opangira mafuta otulutsa ziro. Kulondola si cholinga chawo. Ndi galamala yawo. Ndipo m’zigawo zazitsulo zapamwamba kwambiri, galamala imatsimikizira ngati dongosolo likuyenda—kapena likulephera.
