Nhọrọ nke ntụ ntụ metallurgy binders,ígwè ntụ ntụ injection ịkpụzi teknụzụbụ ngwaahịa nke njikọta na njikọ nke teknụzụ ịkpụzi plastik, kemịkalụ polymer, teknụzụ metallurgy ntụ ntụ na sayensị ihe igwe. Akpụkpọ ahụ nwere ike iji injection na-akpụzi oghere ma gafere ya site na Sintering nwere ike ịmepụta ngwa ngwa njupụta dị elu, nkenke dị elu, akụkụ atọ dị mgbagwoju anya. Ọ nwere ike ngwa ngwa na n'ụzọ ziri ezi na-emepụta echiche imewe n'ime ngwaahịa nwere ụfọdụ njirimara nhazi na arụ ọrụ, ma nwee ike ịmepụta akụkụ dị ukwuu. Ọ bụ mgbanwe ọhụrụ na ụlọ ọrụ teknụzụ mmepụta ihe.
Atụmatụ usoro:
Nke a na nkà na ụzụ usoro bụghị nanị nwere uru nke ot uzuzu metallurgy Filiks dị ka ole na ole nzọụkwụ, ọ dịghị ma ọ bụ obere igbutu, na elu akụ na ụba uru, ma na-emeri adịghị ike nke omenala.ngwaahịa metallurgy ntụ ntụdị ka ihe na-ekwekọghị ekwekọ, akụrụngwa akụrụngwa dị ala, yana ihe isi ike n'ịkpụ mgbidi dị mkpa na ihe owuwu dị mgbagwoju anya. Ọ na-adabara karịsịa maka mmepụta ihe dị ukwuu nke obere akụkụ metal, mgbagwoju anya na pụrụ iche. Usoro eruba: ihe nkedo → mixing → injection molding → degreasing → sintering → post-processing.
Ntụ ntụ ntụ ntụ:
The urughuru size nke metal ntụ ntụ eji naUsoro MIMbụ n'ozuzu 0.5 ~ 20μm; usoro iwu, nke kacha mma na ahụ, ibu nke kpọmkwem elu ebe, na-eme ka ọ dịkwuo mfe ịkpụzi na sinter. Usoro metallurgy ntụ ntụ omenala na-eji ntụ ntụ dị oke karịa 40μm.
Na themetal injection ịkpụzi MIM, ihe nkenke na-arụ ọrụ dị nnọọ mkpa, ọ na-emetụta ozugbo ịgwakọta, injection ịkpụzi, degreasing na ndị ọzọ Filiks, na nwere mmetụta dị ukwuu na àgwà, degreasing na akụkụ ziri ezi nke metal ntụ ntụ injection ịkpụzi oghere, alloy mejupụtara, wdg Ya ọrụ bụ nkekọ na metal powders ihe onwunwe, nke mere na ọ na-eji igwe na-eme ka a na-agbakọta n'ime barrel ntụ ntụ ihe. na-aghọ onye na-ebu na-ebu na-ebugharị ntụ ntụ. Ya mere, nhọrọ nke ihe nkedo bụ isi ihe na-emepụta ntụ ntụ ntụ dum. Ihe ndị achọrọ maka njide:
- obere ego, ya bụ, iji hụ na ngwakọta nwere mma rheology mgbe ị na-eji obere ihe nkedo dị ka o kwere mee;
- Ọ dịghị mmeghachi omume, ie dịghị chemical mmeghachi omume na metal ntụ ntụ;
- Ọ dị mfe iwepu, ọ nweghị ihe fọdụrụ na ngwaahịa ahụ.
Mkpụrụ obi nke binder powder metallurgy MIM usoro, mgbakwunye ya na mwepụ ya bụ teknụzụ isi nke MIM, na usoro mmebi nke a na-eji na usoro ihe nchikota bụ isiokwu nyocha dị mkpa n'ụlọ na ná mba ọzọ. Ihe eji ejikọta na MIM gụnyere usoro thermoplastic, usoro thermoset, usoro mmiri na-edozi mmiri, usoro gel na usoro pụrụ iche, nke ọ bụla n'ime ha nwere uru na ọghọm ya. Thermoplastic binder usoro bụ mainstream na precursor nke MIM binder, na ndị mmadụ na-elekwasị anya n'ịkwalite rheological Njirimara nke nri ọka, ọtụtụ nnyocha e mere iji belata dereasing deformation na ibelata oge iwe iwe, na ụfọdụ pụrụ iche mmadụ gụnyere polyacetal binders e mepụtara.The pụrụ iche usoro enyere n'ihu mmepe nke thermoplastic binder usoro. Ma nnyocha na mmepe nke binders enweghị na powders
Mmekọrịta, ngwakọta nke powders na binders, rheological and thermodynamic properties of binders and feeds n'okpuru ọnọdụ dị iche iche, mmetụta nke binders na dereasing na ngwaahịa Njirimara na-enye ụkpụrụ zuru ụwa ọnụ na usoro iwu ndabere maka nhọrọ nke binders, nke bụ ihe ịrụ ụka adịghị ya pụrụ iche Ọ nwere nnọọ mma pụtara. Mmepe nke usoro ihe nkedo ọhụrụ na nke ọma bụkwa ihe a na-elekwasị anyaMIM teknụzụ.
Oge nzipu: Jun-23-2022