Ngwá ọrụ carbide mkpuchi nwere uru ndị a:
(1) Ihe mkpuchi nke oyi akwa elu nwere oke ike na-eyi nguzogide. N'iji ya tụnyere carbide cemented na-enweghị mkpuchi, ihe mkpuchi nke cemented na-enye ohere iji ọsọ ọsọ dị elu, si otú a na-emeziwanye nhazi nhazi, ma ọ bụ Ọ nwere ike ịbawanye ndụ ngwá ọrụ n'otu oge ahụ.
(2) Ọnụ ọgụgụ nke esemokwu n'etiti ihe mkpuchi na ihe a na-edozi dị ntakịrị. E jiri ya tụnyere carbide cemented na-enweghị mkpuchi, ike ịkpụ nke carbide cemented a na-ekpuchi na-ebelata ruo n'ókè ụfọdụ, na nhazi elu nke edoziri dị mma.
(3) N'ihi arụmọrụ zuru oke nke ọma, mma carbide mkpuchi nwere ike ịdị mma yana oke ngwa ngwa. Ụzọ a na-ejikarị eme ihe maka mkpuchi carbide cimented bụ nnukwu okpomọkụ kemịkalụ vapor deposition (HTCVD). A na-eji Plasma chemical vapor deposition (PCVD) kpuchie elu nke carbide simented.
Ụdị mkpuchi nke ndị na-egbu ihe na-egwe ọka cemented:
Ihe mkpuchi atọ kachasị ewu ewu bụ titanium nitride (TiN), titanium carbonitride (TiCN) na titanium aluminide (TiAIN).
Ihe mkpuchi titanium nitride nwere ike ime ka ike sie ike ma na-eyi nkwụsi ike nke elu ngwá ọrụ, belata ọnụ ọgụgụ esemokwu, belata ọgbọ nke ọnụ ọnụ ụlọ, na ịgbatị ndụ ngwá ọrụ ahụ. Ngwá ọrụ mkpuchi titanium nitride dabara adaba maka nhazi obere alloy steel na igwe anaghị agba nchara.
N'elu mkpuchi nke titanium carbonitride mkpuchi bụ isi awọ, ike siri ike dị elu karịa nke mkpuchi titanium nitride, na nguzogide eyi ka mma. Tụnyere na titanium nitride mkpuchi, na titanium carbonitride mkpuchi ngwá ọrụ nwere ike hazie na a ukwuu ndepụta ọsọ na igbutu ọsọ (40% na 60% elu karịa nke titanium nitride mkpuchi, karị), na workpiece ihe mwepụ ọnụego bụ elu. Ngwá ọrụ mkpuchi nke titanium carbonitride nwere ike hazie ihe dị iche iche nke workpiece.
Ihe mkpuchi alumini titanium bụ isi awọ ma ọ bụ oji. A na-ekpuchikarị ya n'elu isi ihe eji arụ ọrụ carbide simented. Enwere ike ịhazi ya mgbe oke okpomọkụ ruru 800 ℃. Ọ dị mma maka ịkpụ ọkụ ọkụ dị elu. N'oge ịkpụ akọrọ, enwere ike wepu ibe ndị dị na ebe a na-egbutu ya na ikuku abịakọrọ. Titanium aluminide dabara adaba maka nhazi ihe ndị na-emebi emebi dị ka igwe siri ike, alloy titanium, alloy dabere na nickel, nkedo ígwè na silicon aluminum alloy dị elu.
Ngwa mkpuchi nke onye na-egbu osisi cemented carbide:
Ọganihu nke teknụzụ mkpuchi ngwá ọrụ na-egosipụtakwa na ịdị irè nke mkpuchi nano. A na-akpọ mkpuchi mkpuchi ọtụtụ narị n'ígwé ihe nwere ọkpụrụkpụ nke ọtụtụ nanometers n'ihe ndabere ngwá ọrụ bụ nano- mkpuchi. Ogo nke ihe ọ bụla nke ihe mkpuchi nano dị ntakịrị, ya mere oke ọka dị ogologo, nke nwere oke okpomọkụ dị elu. Ike na mgbaji siri ike.
Isi ike nke Vickers nke mkpuchi nano nwere ike iru HV2800 ~ 3000, yana nguzogide iyi na-abawanye site na 5% ~ 50% karịa nke ihe micron. Dị ka akụkọ si kwuo, ugbu a, a na-emepụta ihe mkpuchi mkpuchi 62 na mkpuchi ọzọ nke titanium carbide na titanium carbonitride na 400 nke TiAlN-TiAlN / Al2O3 nano-coated ngwaọrụ.
N'iji ya tụnyere ihe mkpuchi siri ike dị n'elu, sulfide (MoS2, WS2) nke a na-ekpuchi na ígwè dị elu na-akpọ mkpuchi dị nro, nke a na-ejikarị eme ihe maka ịkpụcha ihe ndị dị elu nke aluminum alloys, titanium alloys na ụfọdụ ọla ndị na-adịghị ahụkebe.
Ọ bụrụ na ị nwere mkpa ọ bụla, biko bịa kpọtụrụ XINFA, anyị na-achọsi ike ịnye ngwaọrụ nha ọkọlọtọ n'ime obere oge yana atụmatụ ngwaọrụ ahaziri maka ndị ahịa.
Oge nzipu: Ọgọst-14-2015
