Kuponyera nkhungu kumapereka kulondola kobwerezabwereza komwe kuponyedwa mchenga kumatsika-makamaka magawo ngati ma hydraulic pressure valves, piston pump cylinder housings, ndi ma cobalt-alloy nozzles omwe amafunikira kulolerana kolimba, mawonekedwe osasinthika, ndi zero dimensional drift kudutsa magulu. Pa QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., tathamanga pa 12,000 zitsulo nkhungu kuponyera m'zinthu kuyambira 2018-osati monga zolimbitsa thupi ongoyerekeza, koma kuthetsa zolephera zenizeni: warping mu T800 maziko aloyi mpope, porosity mu AMS 5387 valavu kuwina matupi kutentha pamwamba pa matupi osweka valavu. Kulephera kulikonse kunatiphunzitsa zomwe mabuku amasiya: kuwongolera kutentha kwa nkhungu kumafunika kwambiri kuposa kuyera kwa aloyi; kapangidwe ka gating kumapangitsa moyo wotopa kuposa kulimba mtima; ndi kusasinthasintha kwa kutentha kusanayambike kumalepheretsa 73% ya zidutswa zoyamba muzitsulo zapamwamba za nickel.
Chifukwa chiyani Kuponyera kwa Metal Mold Kupambana Pamene Kulondola Sikukambitsirana
Kuponyera mchenga kumagwira ntchito zotsika kwambiri, zolekerera pang'ono. Koma pamene gawo lanu liyenera kukhala ndi ± 0.05 mm pa nyumba ya silinda ya 320 mm - kapena kupulumuka 15,000 psi pulsation mumsewu wa pampu ya mafuta - kuponya nkhungu kwachitsulo kumakhala njira yokhayo yotheka. Zitsulo zake zolimba kapena nkhungu zachitsulo zimakana kukulitsa kutentha, zimapereka kuzizira kofanana, ndikuchotsa kusinthasintha komwe kumachitika mumchenga womangika. Timayesa izi tsiku ndi tsiku: kuponyedwa kwathu kwachitsulo kumasonyeza kusiyana kwa 42% kucheperachepera kusiyana ndi miyeso yofanana ndi mchenga, ndipo maziko athu a pampu a zitsulo zosapanga dzimbiri amakwaniritsa Cpk ≥1.67 pa callouts yovuta ya GD & T-popanda makina achiwiri.
Kulipira sikuli kocheperako. Zitsulo zachitsulo zimathandiza kuti zitsulo zikhale zolimba. Timayika nkhungu molunjika panyumba za pisitoni, kukakamiza zitsulo zamafuta kupita mmwamba kuchokera ku zokwera pansi. Izi zimachotsa pakati porosity m'zigawo zokhuthala - kulephera kwanthawi yayitali muzofanana ndi mchenga. Kwa ma aloyi a cobalt-nickel ngati AMS 5387, kusintha kumodzi kumeneku kunachepetsa ma voids amkati ndi 91% pakuwunika kwa chipani chachitatu cha NDT. Palibe zokutira, zomangira, zopanda zongopeka - physics yokha, yoyendetsedwa.
Kumene Ikalephera—Ndi Mmene Mungapeŵere Misampha
Ena amati kuponya nkhungu kwachitsulo ndikosavuta kwambiri pakuthamanga kotsika kwambiri. Iwo akulondola-ngati inu mumachita izo ngati kuponya mchenga. Koma kusinthasintha kumabwera chifukwa cha mapangidwe, osati nkhungu. Tapereka ma prototypes ogwira ntchito m'masiku 11 pogwiritsa ntchito nkhungu zachitsulo zopangira zida za T800 alloy nozzles. Chinyengo? Zoyikapo nkhungu zokhala ndi luso lokhala ndi makina opangidwa kuchokera kuchitsulo cha H13, chowumitsidwa mpaka 48 HRC, chokhala ndi madoko ophatikizika a thermocouple owunikira nthawi yeniyeni. Detayo imadyetsa mwachindunji kuyerekezera kwathu kolimba - kotero kutsanulira kwachiwiri kumafanana ndi koyamba, ngakhale mayunitsi 50.
Msampha weniweni wamtengo wapatali si zida - ndikunyalanyaza kuyanjana kwazitsulo. Tinalandirapo chojambula chofotokoza "ASTM A487 Grade CA6NM chitsulo chosapanga dzimbiri" cha maziko a pampu ya pansi pa nyanja. Zolembazo zinali zolondola. Kupha sikunali: kuzizira kwa nkhungu kosalamulirika kunayambitsa mvula ya sigma m'malire a tirigu. Zokolola zatsika mpaka 38%. Njira yothetsera? Tinasintha ndikuzimitsa mpweya woyendetsedwa mkati mwa nkhungu, ndikuwonjezera yankho la 1050 ° C ndi kuzimitsa madzi. Zokolola zidalumpha mpaka 94%. Phunziro: Kuponyera zitsulo sikumalola chilango chazitsulo - kumakulitsa zotsatira zake.
Momwe QINGDAO QIANGSENYUAN Imaphatikizira Kuyimba Ndi Kuchita Zowona Padziko Lonse
Sitimalekanitsa kuponya ndi ntchito. Mainjiniya athu amawunikanso chimango chilichonse cha GD&T, osati chopanga chokha, koma chanjira zolemetsa. Thupi la valve yopanikizika silimangokhala mawonekedwe; ndi njira yochepetsera nkhawa. Chifukwa chake timayika ma gauge azovuta muzoumba zopangira kuti tipange mapu otenthetsera panthawi yolimba. Detayo imatiuza komwe kupsinjika kotsalira kudzayang'ananso-komanso komwe mungawonjezere mpumulo wa makina am'deralo kapena mikombero yotsitsimula pambuyo poponya.
- Cobalt alloy nozzles: Ikani mu nkhungu za H13 zotenthedwa pa 550 ° C, kenako zoziziritsidwa ndi mpweya kuti mupewe kuwonongeka kwa intermetallic.
- Makina opangira ma winch shafts: Miyendo yopangidwa ndi mchenga yomwe imayikidwa muzitsulo zachitsulo zowongolera hybrid geometry - chipolopolo chakunja cholimba, mkati mwa spline cavity
- Nyumba za hydraulic silinda: Amapangidwa mwachindunji kuchokera ku state-cast state pogwiritsa ntchito m'nyumba 5-axis CNC-palibe kukonzanso, palibe kusintha kwa data
Kuphatikiza uku kumachepetsa nthawi yotsogolera ndi 30% motsutsana ndi ma sequential casting + ogulitsa makina. Chofunika koposa, chimatsimikizira kutsatiridwa: gawo lililonse limakhala ndi mbiri yotentha, kusanthula kwamankhwala, ndi malipoti oyendera a CMM-olumikizidwa ndi ma cert amafuta ochokera ku mphero zovomerezeka.
Kusankha Munthu Woyenda Naye—Kupitirira Kabukuko
Funsani wogulitsa aliyense za luso lawo loponya nkhungu. Kenako funsani zotsatirazi zitatu: Kodi nkhungu yanu yayitali kwambiri ya AMS 5387 ndi iti? Kodi mumatsimikizira bwanji kutentha kwa nkhungu musanathire chilichonse? Kodi mungagawane nawo lipoti laposachedwa la FAI lowonetsa ngati akuponya motsutsana ndi miyeso yomaliza pagawo limodzi ndi ≥5 zofunikira za GD&T?
Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., mayankho athu ndi oyezeka: 8,200 amathira pa nkhungu imodzi ya T800; kutsimikizika kwa infrared pyrometer pa 3 point per cavity, kulowetsedwa zokha; ndi malipoti a FAI akuwonetsa kupatuka kwapakati pa 0.012 mm pa 12-point cylindrical runout kwa maziko a mpope a 280 mm. Timasindikiza izi osati monga kutsatsa-koma chifukwa chochita bwino ndi chitsulo, osati malonjezano.
Pazogwiritsa ntchito pomwe kulephera kumatanthauza nthawi yocheperako, chiwopsezo chachitetezo, kapena kusatsata malamulo—chitsulo nkhungu kuponyera si njira. Ndilo maziko. Ndipo bwenzi loyenera limapanga kusiyana pakati pa kubwereza kobwerezabwereza ndi kukonzanso kokwera mtengo.
