Emere nke Carbide cimented

A na-eme carbide cimented site na ịgwakọta tungsten carbide na cobalt n'otu akụkụ, na-agbanye n'ụdị dị iche iche, wee na-agbakọta ọkara.A na-arụkarị usoro ịgbanye ihe n'ime ọkụ ọkụ.A na-agbanye ya n'ọkụ na-ekpo ọkụ na okpomọkụ nke ihe dịka 1,300 ruo 1,500 degrees Celsius.

Ogwe nwere ụdị pụrụ iche

Sintered siri ike alloy akpụ bụ pịa ntụ ntụ n'ime billet, na mgbe ahụ n'ime sintering ọkụ kpo oku na a ụfọdụ okpomọkụ (sintering okpomọkụ), na ịnọgide na-enwe a ụfọdụ oge (jide oge), na mgbe ahụ jụrụ, nke mere iji nweta chọrọ arụmọrụ nke. ihe siri ike alloy.

Enwere ike kewaa usoro simented carbide sintering n'ime usoro anọ bụ isi:

1: Mwepụ nke na-akpụ akpụ na ogbo tupu igba egbe, n'oge a, anụ ahụ na-agbanwe agbanwe dị ka ndị a:

Mwepụ nke ịkpụzi gị n'ụlọnga, na mbụ ogbo nke sintering na ịrị elu nke okpomọkụ, onye na-akpụzi gị n'ụlọnga ji nwayọọ nwayọọ decompose ma ọ bụ vaporize, ewepu sintered ahu, n'otu oge ahụ, ịkpụzi gị n'ụlọnga ọzọ ma ọ bụ obere ka sintered ahu carburizing, carburizing ego ga-agbanwe. na ụdị onye na-akpụzi ihe, ọnụ ọgụgụ na usoro sintering dị iche iche.

A na-ebelata oxides elu nke ntụ ntụ.N'ebe okpomọkụ na-ekpo ọkụ, hydrogen nwere ike ibelata oxides nke cobalt na tungsten.Ọ bụrụ na e wepụrụ onye na-emepụta ihe na oghere ma gbanye ya, mmeghachi omume carbon-oxygen adịghị ike.A na-eji nwayọọ nwayọọ kpochapụ nrụgide kọntaktị n'etiti ihe ndị dị na ntụ ntụ, ngwakọta metal ntụ ntụ na-amalite ịmaliteghachi na recrystallize, mgbasawanye elu na-amalite ime, na ike nke ngọngọ na-emeziwanye.

2: siri ike na-adọ sintering ogbo (800 ℃- eutectic okpomọkụ)

Na okpomọkụ tupu ọdịdị nke mmiri mmiri, na mgbakwunye na ịga n'ihu na usoro a na-eme na ọkwa gara aga, mmeghachi omume siri ike na mgbasawanye na-arịwanye elu, a na-eme ka mmiri plastik na-emewanyewanye, na anụ ahụ na-eme ka ọ na-apụta ìhè shrinkage.

3: mmiri mmiri na-agba ọsọ ogbo (eutectic okpomọkụ - sintering okpomọkụ)

Mgbe enwere mmiri mmiri n'ime ahụ siri ike, a na-emecha ngwa ngwa ahụ, mgbe ahụ, mgbanwe kristal na-eme, na-akpụ isi microstructure na nhazi nke alloy.

4: Ogbo jụrụ oyi (sintering okpomọkụ - ụlọ okpomọkụ)

N'oge a, microstructure na usoro nhazi nke alloy na-agbanwe na ọnọdụ dị jụụ dị iche iche, nke enwere ike iji kpoo ọgwụgwọ nke carbide cemented iji meziwanye ihe anụ ahụ na arụ ọrụ ya.