Masiqhubeke nokwazisa yonke inkqubo ye-Metal Injection Molding Molding.
Namhlanje siza kuxoxa malunga ne-sintering eyona nto ibalulekileyo ngexesha le-MIM.
ULWAZI OLUSISISEKO LOKUGQIBELA
I-1) I-Sintering kukufudumeza kunye nokuva i-powder compact kwiqondo lokushisa elisezantsi kunendawo yokunyibilika yamacandelo ayo aphambili, kwaye emva koko ipholise ngendlela ethile kunye nesantya, ngaloo ndlela iphucula i-strenth kunye neempawu ezahlukeneyo zomzimba kunye nezomatshini ze-compact kunye nokufumana. ulwakhiwo oluthile lwe-metallographic.
2) Inkqubo esisiseko yiPowder compact-Furnace Charging-Sintering kubandakanywa ukufudumeza, ukuGcinwa koBushushu kunye neemveliso zokuPholisa-Umlilo-Sintered.
3) Umsebenzi we-sintering kukufumana ukususwa kwe-lubricant, i-metallurgical bonding, i-element diffusion, utshintsho lwe-dimensional, i-microstructure kunye nokuthintela i-ocidation.
INTSHAYELELO FUTSHANE YENKQUBO YOKUTSHAYA
1) Iqondo lobushushu eliphantsi Inqanaba langaphambi kwe-sintering:
Kule nqanaba, ukubuyiswa kwesinyithi, ukuguqulwa kwegesi ye-adsorbed kunye nomswakama, ukubola kunye nokususwa kwe-arhente yokwenza kwi-compact.
2) Inqanaba lobushushu eliphakathi lokufudumeza inqanaba le-sintering:
Recrystallization iqala kweli nqanaba.Okokuqala, iinkozo zekristale ezikhubazekileyo zibuyiselwa ngaphakathi kweengqungquthela kwaye zilungelelaniswe kwakhona kwiinkozo ezintsha ze-crystal.Ngexesha elifanayo, i-oxides ebusweni beengqungquthela ziyancipha ngokupheleleyo, kwaye i-particle interface yenza intamo ye-sintering.
3) Ukugcinwa kweendlebe zexesha eliphezulu ukugqiba inqanaba le-sintering:
Eli nqanaba yinkqubo ephambili ye-sintering, njengokusasazwa kunye nokuhamba ngokuqhubekayo kwaye isondele ekugqityweni, ukwenza inani elikhulu lee-pores ezivaliweyo, kunye nokuqhubeka nokunciphisa, ukwenzela ukuba ubungakanani bangaphambili kunye nenani elipheleleyo leepores ziyancipha, kunye nokuxinana. umzimba sintered ukwanda kakhulu.
4) Inqanaba lokupholisa:
Eyona nkqubo sintering eqhubekayo sintering, ngoko ke inkqubo ukusuka sintering lobushushu ukucotha ukupholisa kangangexesha elithile kwaye ke ukupholisa ngokukhawuleza de imveliso eziko ifikelele ubushushu begumbi nayo inqanaba apho austenite ukubola kunye nolwakhiwo lokugqibela ngokuthe ngcembe.
Kukho izinto ezininzi ezinempembelelo ezichaphazela inkqubo ye-sintering.Kwaye izinto ezibandakanya ubushushu, ixesha, umoya, ukubunjwa kwezinto, indlela ye-alloy, umxholo we-lubricant kunye nenkqubo ye-sintering efana nesantya sokufudumeza kunye nokupholisa.Ingabonwa ukuba ikhonkco ngalinye linempembelelo ebalulekileyo kumgangatho we-sintering.Kwiimveliso ezinezakhiwo ezahlukeneyo kunye neepowder ezahlukeneyo, iiparitha ezahlukeneyo kufuneka zilungiswe.
Ixesha lokuposa: Jan-15-2021