The ductile cast iron castings opangidwa ndi utomoni wokutira mchenga kuponya kuchokera ku China kuponyera kampani ndiCNC makinandi ntchito zoyesa.
Kuponyera mchenga wopangidwa ndi utomoni kumagwiritsidwa ntchito kwambiri popangamakonda castingsndi zofunika zapamwamba kuposawobiriwira mchenga kuponyera ndondomeko. Asanapange nkhungu ndi pachimake, mchenga wokutira waphimbidwa ndi filimu yolimba ya utomoni pamwamba pa mchenga. Mchenga wokutidwa umatchedwanso chipolopolo (pachimake) mchenga. Njira yaukadaulo ndikusakaniza mwamakani mtengo wa ufa wa thermosetting phenolic ndi mchenga wosaphika ndikuulimbitsa ukatenthedwa. Apangidwa kukhala mchenga wokutidwa pogwiritsa ntchito thermoplastic phenolic resin plus latent curing agent (monga urotropine) ndi lubricant (monga calcium stearate) kudzera munjira zina zokutira. Mchenga wokutidwa ukatenthedwa, utomoni womwe umakutidwa pamwamba pa mchengawo umasungunuka. Pansi pa zochita za gulu la methylene lomwe limavunda ndi Maltropine, utomoni wosungunuka umasintha kuchokera ku mzere wozungulira kupita ku thupi losasunthika kotero kuti mchenga wophimbidwa umalimba ndikupangidwa. Kuphatikiza pa mchenga wowuma wouma, palinso mchenga wonyowa komanso wokutidwa ndi viscous.
Kuponyera mchenga wokutira utomoni kumakhala ndi zotsatirazi
1) Ili ndi magwiridwe antchito oyenera. Ikhoza kukwaniritsa zofunikira pa mchenga wa chipolopolo champhamvu kwambiri, mchenga wa bokosi lamphamvu lapakati, ndi mchenga wa alloy wopanda mphamvu zochepa.
2) Kusungunuka kwabwino kwambiri, kuumbika bwino kwa pachimake cha mchenga ndi ndondomeko yomveka bwino, yomwe imatha kupanga mchenga wovuta kwambiri, monga mchenga wa jekete lamadzi monga mitu ya silinda ndi matupi a makina.
3) Ubwino wapakatikati pa mchenga ndi wabwino, wophatikizika komanso wosamasuka. Ngakhale zokutira zocheperako kapena zosagwiritsidwa ntchito, zopanga zapamwamba zitha kupezeka. The dimensional kulondola kwa castings akhoza kufika CT7-CT8, ndi pamwamba roughness Ra akhoza kufika 6.3-12.5μm.
4) Kuwonongeka kwabwino, komwe kumathandizira kuyeretsa ndikuwongolera magwiridwe antchito
5) Mchenga wapakati siwosavuta kuyamwa chinyezi, ndipo mphamvu yosungiramo nthawi yayitali sivuta kuchepa, yomwe imathandizira kusungirako, kuyendetsa ndi kugwiritsa ntchito.
Kupanga njira zopangira utomoni wokutira mchenga nkhungu (core) kupanga kwakuponya zipolopolo akamaumba:
1. Njira yayikulu yopangira nkhungu yamchenga (pachimake) ndi: kutembenuza kapena kupukusa mchenga → kutumphuka → kutulutsa mchenga → kuumitsa → pachimake ( nkhungu) ndi zina zotero.
1) Pindulani kapena phulitsa mchenga. Ndiko kuti, mchenga wokutidwa umatsanuliridwa pa nkhungu ya chipolopolo kapena kuwombedwa mu bokosi lapakati kuti apange chipolopolo kapena chipolopolo pakati.
2) Kukhazikika. Kuchuluka kwa chipolopolo cha chipolopolo kumayendetsedwa ndi kusintha kutentha kwa kutentha ndi nthawi yogwira.
3) Kutuluka kwa mchenga. Pendekerani nkhungu ndi bokosi lapakati kuti mchenga wosakanizidwa ugwe kuchokera pachigoba chotenthedwa, ndipo sonkhanitsani kuti muugwiritsenso ntchito. Kuti zikhale zosavuta kuchotsa mchenga wosasungunuka wosasungunuka, ngati kuli kofunikira, njira yamakina yogwedeza mmbuyo ndi mtsogolo ingatengedwe.
4) Kuwumitsa. M'malo otentha, kuti makulidwe a chipolopolocho akhale ofanana, agwirizane ndi pamwamba pa chipolopolo chamoto mkati mwa nthawi yowonjezereka.
5) Tengani pachimake. Chotsani mawonekedwe a chipolopolo cholimba ndi chipolopolo chapakati pa nkhungu ndi bokosi lapakati.
Zida Zopangira Zopangira Mchenga Wopaka utomoni:
• Chitsulo Chotayira: Chitsulo cha Gray Cast, Chitsulo cha Ductile Cast.
• Cast Carbon Steel ndi Alloy Steel: Low Carbon Steel, Medium Carbon Steel ndi High Carbon Steel kuchokera ku AISI 1020 kupita ku AISI 1060; 20CrMnTi, 20SiMn, 30SiMn, 30CrMo, 35CrMo, 35SiMn, 35CrMnSi, 40Mn, 40Cr, 42Cr, 42CrMo... etc popempha.
• Kutaya Zitsulo Zosapanga dzimbiri: AISI 304, AISI 304L, AISI 316, AISI 316L ndi kalasi ina yachitsulo chosapanga dzimbiri.
• Ma Aluminiyamu Otayirapo.
• Mkuwa & Mkuwa.
• Zida Zina ndi Miyezo pakupempha
▶ Mphamvu Zoponyera Mchenga Wopaka utomoni:
• Kukula Kwambiri: 1,000 mm × 800 mm × 500 mm
• Kulemera kwake: 0,5 kg - 100 kg
• Mphamvu Zapachaka: matani 2,000
• Kulekerera: Popempha.
▶ Kuyang'ana Zopangira Mchenga Wopaka Utomoni:
• Kusanthula kwa Spectrographic ndi Buku la kuchuluka
• Kusanthula kwazitsulo
• Brinell, Rockwell ndi Vickers kuuma kuuma
• Kusanthula katundu wamakina
• Kuyeza kutentha kwapansi ndi kwachibadwa
• Kuyang'anira ukhondo
• Kuwunika kwa UT, MT ndi RT
▶ Njira Zopangira Mchenga Wopaka Utomoni:
✔ Kupanga Zitsulo. Mchenga wophimbidwa utomoni uyenera kutenthedwa pamapataniwo, chifukwa chake mawonekedwe achitsulo ndi chida chofunikira chopangira zipolopolo.
✔ Kupanga Nkhungu Yamchenga Yokutira kale. Pambuyo poyika zitsulo pamakina omangira, mchenga wa utomoni wophimbidwa kale udzawomberedwa pamapangidwewo, ndipo mutatha kutentha, kupaka utomoni kumasungunuka, kenako nkhungu zamchenga zimakhala chipolopolo cholimba cha mchenga ndi ma cores.
✔ Kusungunula Chitsulo cha Cast. Pogwiritsa ntchito ng'anjo zopangira, zidazo zimasungunuka kukhala madzi, ndiye kuti mankhwala achitsulo chamadzimadzi amayenera kufufuzidwa kuti agwirizane ndi manambala ndi maperesenti ofunikira.
✔ Kuthira Chitsulo. Chitsulo chosungunuka chikakwaniritsa zofunikira, chidzatsanuliridwa mu nkhungu za chipolopolo. Kutengera ndi zilembo zosiyanasiyana zamapangidwe oponya, zipolopolozo zimakwiriridwa mumchenga wobiriwira kapena zowunjikiridwa ndi zigawo.
✔ Kuwombera Kuwombera, Kupera ndi Kuyeretsa. Pambuyo pozizira ndi kulimba kwa zoponyera, zokwera, zitseko kapena zitsulo zowonjezera ziyenera kudulidwa ndikuchotsedwa. Kenako zitsulozo zimatsukidwa ndi zida zokopera mchenga kapena makina owombera. Pambuyo pogaya mutu wa gating ndi mizere yolekanitsa, mbali zomalizidwa zoponyedwa zimabwera, kudikirira njira zina ngati zikufunika.
▶ Njira Yakusewera Pambuyo pa Kuyimba
• Kuchotsera & Kuyeretsa
• Kuwombera Mchenga / Kusudzula Mchenga
• Chithandizo cha Kutentha: Kukhazikika, Kuzimitsa, Kutentha, Carburization, Nitriding
• Chithandizo cha Pamwamba: Passivation, Andonizing, Electroplating, Hot Zinc Plating, Zinc Plating, Nickel Plating, Polishing, Electro-Polishing, Painting, GeoMet, Zintec.
• CNC Machining: Kutembenuza, Kugaya, Lathing, Kubowola, Honing, Akupera.
▶ Chifukwa Chiyani Mumasankha RMC ya Zigawo Zoponya Zipolopolo?
✔ Kulondola komanso kugwiritsa ntchito zinthu zambiri. Mudzalandira maukonde kapena pafupi-mawonekedwe-ukonde mankhwala pambuyo akamaumba zipolopolo, malingana ndi zofunikira za ogwiritsira ntchito mapeto, sipadzakhala kapena pang'ono Machining ndondomeko chofunika.
✔ Kuchita bwino pamtunda. Chifukwa cha zipangizo zamakono zopangira zojambulajambula, zojambula zochokera ku zipolopolo zimakhala ndi zowoneka bwino komanso zolondola kwambiri.
✔ Kusankha bwino koyenera poyerekeza ndi kupanga mchenga ndi ndalama. Zopangira zipolopolo zimakhala ndi ntchito yabwino komanso pamwamba kuposa kuponya mchenga, pomwe zimakhala zotsika mtengo kuposa kuyika ndalama moyenera.
▶ Migwirizano Yachidule
• Kayendetsedwe ka ntchito: Kufunsa & Mawu → Kutsimikizira Tsatanetsatane / Malingaliro Ochepetsa Mtengo
• Nthawi yotsogolera: Pafupifupi masiku 15-25 opangira zida komanso masiku 20 oti apange zambiri.
• Malipiro: Kukambilana.
• Njira zolipirira: T/T, L/C, West Union, Paypal.
