Na ịkpụ ígwè, a na-akpọ ngwá ọrụ ịkpụ mgbe nile ezé nke mmepụta ihe mmepụta ihe, na ịrụ ọrụ nke ịkpụcha ngwá ọrụ bụ otu n'ime isi ihe na-ekpebi mmepụta mmepụta ya, ọnụ ahịa mmepụta na nhazi nhazi.Ya mere, nhọrọ ziri ezi nke ịcha ngwá ọrụ dị oké mkpa dị mkpa.
Ngwá ọrụ ngwá ọrụ na-ezo aka na ihe nke akụkụ ịkpụ nke ngwá ọrụ ahụ.
Kpọmkwem, nhọrọ ezi uche dị na ya nke akụrụngwa akụrụngwa na-emetụta akụkụ ndị a:
Ịrụpụta ihe eji arụ ọrụ, ịdịte aka ngwá ọrụ, ihe eji eji ngwá ọrụ eme ihe na ihe eji eme ihe, nhazi nhazi na ịdị mma elu.
A na-ekwenyekarị na ihe eji arụ ọrụ gụnyere carbon tool steel, alloy tool steel, igwe na-agba ọsọ ọsọ, alloy siri ike, ceramik, cermets, diamond, cubic boron nitride, wdg.
Cermet bụ ihe ejikọtara ọnụ
Cermet
Cermet okwu bekee cermet ma ọ bụ ceramet bụ seramiiki (seramiiki) na metal (metal) mejupụtara.Cermet bụ ụdị ihe ejikọtara ọnụ, nkọwa ya dịtụ iche n'oge dị iche iche.
(1) A kọwapụtara ụfọdụ dị ka ihe mejupụtara ceramik na ọla, ma ọ bụ ihe mejupụtara seramiki na ọla ndị e ji ntụ ntụ mee.
Kọmiti ọkachamara ASTM nke America na-akọwa ya dị ka: ihe dị iche iche mejupụtara ihe mejupụtara metal ma ọ bụ alloy na otu akụkụ ma ọ bụ karịa seramiiki, nke ikpeazụ bụ ihe dị ka 15% ruo 85% nke pere mpe, yana na okpomọkụ nkwadebe, solubility n'etiti metal na seramiiki n'usoro bụ kama obere.
Ihe ndị e ji ígwè na ihe ndị e ji eme seramiiki mee nwere ụfọdụ uru nke ma metal na ceramik, dị ka ike siri ike na nkwụsị nke mbụ, na elu okpomọkụ na-eguzogide, ike dị elu na oxidation resistance nke ikpeazụ.
(2) Cermet bụ carbide simenti nwere ihe siri ike dabere na titanium dị ka isi ahụ.Aha Bekee nke cermet, cermet, bụ ngwakọta nke okwu abụọ a seramiiki (seramiiki) na metal (metal).Ti (C, N) na-abawanye nguzogide eyi nke ọkwa, usoro nke abụọ siri ike na-abawanye iguzogide nrụrụ plastik, na ọdịnaya cobalt na-achịkwa ike ahụ.Cermet na-abawanye nguzogide iyi ma belata ọchịchọ ịrapara na workpiece ma e jiri ya tụnyere sintered carbide.
N'aka nke ọzọ, ọ nwekwara obere mkpakọ ike na adịghị mma thermal ujo eguzogide.Cermet dị iche na alloys siri ike n'ihi na ihe ndị siri ike ha bụ nke sistemu WC.Cermet bụ nke nwere carbide na nitrides dabere na Ti, ma a na-akpọkwa carbide cemented Ti.
Cermets ndị a chịkọtara gụnyekwara alloys ngwakọta refractory, alloys siri ike, na ihe ngwaọrụ diamond jikọtara ọnụ.The seramiiki na-adọ na cermets bụ ihe oxide ma ọ bụ refractory compound na elu agbaze ebe na elu hardness, na metal na-adọ bụ tumadi mgbanwe ọcha na ha alloys.
Cermet bụ ụdị ihe ejikọtara ọnụ, nkọwa ya dịtụ iche n'oge dị iche iche.
Cermet bụ ngwá ọrụ ịkpụ ígwè
ihe dị mkpa
A na-ebulite cermets
A na-ekwenyekarị na ihe eji eme ihe gụnyere carbon ngwá ọrụ ígwè, alloy ngwá ọrụ ígwè, elu-ọsọ ígwè, cemented carbide, cermet, ceramics, diamond, cubic boron nitride, wdg.
N'afọ ndị 1950, TiC-Mo-Ni cermets bụ nke mbụ ejiri mee ihe dị ka ihe eji eme ihe maka ịkpụ nchara dị elu.
Na mbu sitere na TiC na nickel mebere cermets.Ọ bụ ezie na ọ nwere ike dị elu na ike dị elu tụnyere carbide cemented, isi ike ya adịghị mma.
N'afọ ndị 1970, a rụpụtara cermets TiC-TiN, cermets enweghị nickel.
Nke a nke oge a cermet, na titanium carbonitride Ti (C, N) ahụ dị ka isi akụrụngwa, a obere ego nke abụọ siri ike na-adọ (Ti, Nb, W) (C, N) na tungsten-cobalt-ọgaranya ihe nkedo, mma metal The siri ike nke ceramik mere ka arụmọrụ ha dị mma, na kemgbe ahụ, a na-eji cermets eme ihe na mmepe ngwá ọrụ.
Site na nguzogide okpomọkụ ya dị mma, na-eyi nkwụsi ike na nkwụsi ike kemịkalụ, ngwá ọrụ cermet egosila uru na-enweghị atụ n'ọhịa nke ịkpụ ọsọ ọsọ na ịcha ihe siri ike na-arụ ọrụ.
Ihe mkpuchi Cermet + PVD na-eme ka iguzogide iyi
n'ọdịnihu
Ngwa nke mma cermet na mpaghara dị iche iche na-abawanye kwa ụbọchị, na obi abụọ adịghị ya na a ga-emepewanye ụlọ ọrụ cermet.
Enwere ike iji PVD kpuchie cermets maka nguzogide iyi ka mma.
Oge nzipu: Feb-08-2023
