Ndewo, ndị enyi! Anyị bụ ọkachamaraNdị na-emepụta akụkụ ígwè powdered na China. Anyị nwere ọtụtụntụ ntụ metallurgy sintering nke components. Dị ka onye na-emepụta ihe na-emepụta ntụ ntụ, m ga-agwa gị ka usoro na-esi na-arụ ọrụ na ntụ ntụ ntụ!
Sintering usoro na ntụ ntụ metallurgyna-enweta usoro mgbanwe anụ ahụ na nke kemịkalụ, dị ka mmiri ma ọ bụ evaporation organic ma ọ bụ volatilization, adsorption gas purging, mkpochapụ nke nrụgide, mbelata oxide ntụ ntụ, mpụ ihe onwunwe intergranular, recrystallization na uto ọka, si otú a na-eme kristal interface n'etiti ahụ na-abawanye, pore na-ebelata ma ọ bụ ọbụna na-apụ n'anya. Mgbe usoro mmiri mmiri pụtara, mgbasa na mmiri ozuzo nke akụkụ siri ike ga-emekwa. Usoro ndị a enweghị oke doro anya na ibe ha, mana ha na-emetụta ma na-emetụta ibe ha. Na mgbakwunye na sintering ndị ọzọ na metallurgy, mmeghachi omume nke ngwaahịa niile nke metallurgy ntụ ntụ mere dị mgbagwoju anya. N'afọ 1942, GF Schutig German jiri ụzọ nyocha anụ ahụ na nke kemịkalụ tụọ mmetụta nke ikpo ọkụ na ike electromotive, solubility, density, microstructure, mechanical properties of sintered body, wee chọpụta na sintering bụ usoro dị mgbagwoju anya. N'afọ 1949, GCKuczynski nke United States mụrụ otú e si emepụta bọọlụ ígwè na efere ígwè ma kwenye na ọ bụ mgbasa ozi ka a na-ebuga ihe onwunwe n'oge a na-akwagharị. Ọrụ ha mere ka ọmụmụ ihe ọmụmụ nke sintering na ọkwa ọhụrụ. Ọtụtụ n'ime ọrụ nyocha na-esote lekwasịrị anya na usoro nke ịkwaga ihe onwunwe n'oge sintering.
A na-ekwenyekarị na e nwere usoro ise nke ịkwaga ihe onwunwe n'oge sintering: viscous ma ọ bụ plastik eruba, evaporation na condensation, mgbasa ozi olu, mgbasa oke oke ọka, na mgbasa nke elu. Mgbe a na-ejikọta akụkụ abụọ dị okirikiri na kọntaktị, uto nke olu kọntaktị radius X nwere ike jikọta na oge nkwụsịtụ t dị ka ndị a:
A ghaghị ịmegharị usoro ịgbanye n'ime ọkụ na-ekpo ọkụ nke nwere ikuku nchebe iji zere oxidation nke ahụ mebiri emebi ma ọ bụ mmeghachi omume kemịkal na-adịghị mma. Enwere ọtụtụ ụdị ọkụ ọkụ na-ekpo ọkụ, nke enwere ike iji dị ka ebe okpomọkụ dị ka gas, gas, mmanụ na ọkụ eletrik. Igwe ọkụ ọkụ eletrik dị mma ma dị mma, dị mfe ịhazi na ịchịkwa. Igwe nchebe a na-ejikarị eme ihe bụ agụụ, argon, helium, nitrogen, carbon dioxide na gas inert gas na hydrogen, ire ere nke amonia, carbon monoxide, ntughari nke gas na ihe ndị ọzọ na-ebelata gas.
Iji meziwanye arụmọrụ nke ngwaahịa sintered na nha na ọdịdị ọdịdị ya, ọ na-adịkarị mkpa iji mepụta nhazi, imecha, nkwụsị, ntinye mmanụ, nhazi nhazi, ọgwụgwọ okpomọkụ na usoro ndị ọzọ na-esote.
Usoro ịkpụzi injection na-eruba
Oge nzipu: Jul-29-2022