Iyo inoumbika yakakandwa simbi inokandwa kazhinji inokandwagreen sand kukandakana resin yakavharwa jechashell mold castingmaitiro paRMC casting foundry.
Cast irons ndiwo maferrous alloys ane carbon content inopfuura 2%. Kunyangwe simbi dzakakandwa dzinogona kuva nekabhoni muzana pakati pe2 kusvika 6.67, muganho unoshanda unowanzo pakati pe2 ne4%. Izvi zvakakosha zvakanyanya nekuda kwehunhu hwavo hwekukanda hwakanakisa. Masimbi egrey cast irons, ductile cast irons (inonziwo nodular cast iron kana spheroidal graphite iron) uye inogadzika simbi yekukandwa ndiwo matatu makuru akakandwa simbi mune yekutanga.
Iyo inogadzika simbi yakakandwa ine yemahara kabhoni iyo iripo muchimiro chemanodule mumatrix ecementite uye ferrite. Izvi zvinowanikwa nekutanga kutonhora kukanda kuitira kuti simbi yese chena inoumbwa iumbwe, inoteverwa neinodzorwa kupisa kupisa maitiro kuitira kuti imwe simende ishandurwe kuita ferrite uye nodules emahara kabhoni. Ichi chinyorwa chinowedzera ductile pane grey cast iron. Izvifomu rakakodzera chete kune zvikamu zvine diki chikamu ukobvu sezvo ese chena simbi yakakandwa iri kuumba nzvimbo yekutangira yesimbi inogoneka.
Shell mold casting inzira iyo jecha rakasanganiswa ne thermosetting resin rinotenderwa kusangana neinopisa yesimbi pateni ndiro, kuitira kuti goko rakatetepa uye rakasimba rekuumbwa riumbwe rakatenderedza pattem. Zvadaro goko rinobviswa kubva pamuenzaniso uye cope uye kudhonza zvinobviswa pamwe chete uye zvinochengetwa muflask ine inodiwa yekudzosera zvinhu uye simbi yakanyungudutswa inodururwa muforoma.
Kazhinji, jecha rakaoma uye rakanaka (90 kusvika 140 GFN) iro risina zvachose ivhu rinoshandiswa kugadzirira goko rekuumba jecha. Saizi yezviyo ichasarudzwa zvinoenderana nepamusoro pekupedzisira inodiwa pakukanda. Kunyanya kutsetseka saizi yezviyo inoda huwandu hwakawanda hweresin, izvo zvinoita kuti mold idhure.
Zvakanakira zveResin Coated Sand Shell Mold Casting:
1. Kukandwa kweshell-mould kazhinji kwakanyatso mativi pane kukanda jecha. Zvinokwanisika kuwana kushivirira kwe +0.25 mm yesimbi castings uye +0. 35 mm yegrey cast iron castings pasi pemamiriro ekushanda. Panyaya yepedyo yakashivirira magoko maforomo, munhu anogona kuiwana muhupamhi hwe +0.03 kusvika +0.13 mm kune chaiwo maapplication.
2. Nzvimbo yakapfava inogona kuwanikwa mushell castings. Izvi zvinonyanya kuwanikwa neiyo yakatsetseka saizi tsanga inoshandiswa. Iyo yakajairika huwandu hwekukasharara ndeyekurongeka kwe3 kusvika ku6 microns.
3. Draft angles, iyo yakaderera pane jecha castings, inodiwa muhombodo. Kudzikiswa kwemakona ekudhirowa kunogona kubva pa50 kusvika 75%, iyo inochengetedza zvakanyanya mutengo wezvinhu uye mutengo unotevera wekugadzira.
4. Dzimwe nguva, macores akakosha anogona kubviswa mukuumbwa kwegoko. Sezvo jecha riine simba rakawanda mold inogona kugadzirwa nenzira yekuti magonhi emukati anogona kuumbwa zvakanangana nekudiwa kwegomba cores.
5. Uyezve, zvikamu zvakatetepa zvikuru (kusvika ku 0.25 mm) yemhando yemhepo-yakatonhorera misoro ye cylinder inogona kugadzirwa nyore nyore neshell molding nekuda kwesimba rakakwirira rejecha rinoshandiswa pakuumba.
6. Permeability yehoko yakakwirira uye naizvozvo hapana gasi inclusions inoitika.
7. Ijecha shoma shoma rinoda kushandiswa.
8. Michina inogoneka nyore nyore nekuda kwekugadzirisa kuri nyore kunobatanidzwa mukuumbwa kwegoko.
| Resin Yakavharwa Nejecha Kukandira Metal uye Alloys | |
| Metal & Alloys | Popular Giredhi |
| Grey Cast Iron | GG10~GG40; GJL-100 ~ GJL-350; |
| Ductile (Nodular) Cast Iron | GGG40 ~ GGG80; GJS-400-18, GJS-40-15, GJS-450-10, GJS-500-7, GJS-600-3, GJS-700-2, GJS-800-2 |
| Austempered Ductile Iron (ADI) | SH-GJS-800-8, SH-GJS-1000-5, SH-GJS-1200-2 |
| Carbon Steel | C20, C25, C30, C45 |
| Alloy Steel | 20Mn, 45Mn, ZG20Cr, 40Cr, 20Mn5, 16CrMo4, 42CrMo, 40CrV, 20CrNiMo, GCr15, 9Mn2V |
| Simbi isina ngura | Ferritic Stainless Simbi, Martensitic Stainless Simbi, Austenitic Stainless Simbi, Kunaya Kuomesa Stainless Simbi, Duplex Stainless Simbi |
| Aluminium Alloys | ASTM A356, ASTM A413, ASTM A360 |
| Brass / Copper-based Alloys | C21000, C23000, C27000, C34500, C37710, C86500, C87600, C87400, C87800, C52100, C51100 |
| Standard: ASTM, SAE, AISI, GOST, DIN, EN, ISO, uye GB | |
| CNC Precision Machining Mano | ||||
| Facilities | Quantity | Size Range | Annual Capacity | General Kururama |
| Vertical Machining Center (VMC) | 48 seti | 1500mm × 1000mm × 800mm | 6000 ton kana 300000 zvidimbu | ±0.005 |
| Horizontal Machining Center (VMC) | 12 seti | 1200mm × 800mm × 600mm | 2000 matani kana 100000 zvidimbu | ±0.005 |
| CNC Machine | 60 seti | Max achitendeuka dia. φ600mm | 5000 matani kana 600000 zvidimbu | |
