Tungsten carbide ya ƙone baya

Kona baya yana nufin hanyar sake-sintering don lankwasa nakasassu kayayyakin, infiltrated, decarbured kayayyakin daTungsten carbide kayayyakintare da wuce kima pores.(1) Kona baya na kutse da kayan da aka cire.Carburizing da baya-kona yawanci amfani da high-zazzabi calcined graphite barbashi ko cakuda graphite barbashi da Al2O3 foda a matsayin matsakaici, da kuma gudanar da baya-kona karkashin hydrogen kariya.
Decarburization da backburning yawanci amfani da Al203 foda calcined a high zafin jiki ko cakuda Al203 foda da lafiya W foda a matsayin matsakaici, da backburning da aka yi a karkashin hydrogen kariya.
(2) Ƙaƙƙarfan ƙwarƙwarar ta zarce ma'auni kuma tana ƙonewa.Idan porosity na tungsten carbidesamfuran sintered (pores waɗanda ba su fi girma fiye da 25 μm ba) sun zarce ma'auni, ana iya amfani da tanderun matsa lamba don matsa lamba a matsa lamba na kusan 10MPa.Matsakaicin zafin jiki ya kamata ya zama ƙasa da 20°C fiye da yanayin zafin samfurin na farko.Yin aiki a matsi mafi girma ta amfani da matsi na isostatic mai zafi ya fi tasiri.
(3) Daidaitawa.Ana yin ƙona baya ta hanyar amfani da matsi da amfani da kariya ta hydrogen ko yanayi mara kyau a yanayin zafi dan sama da zafin eutectic.Za'a iya daidaita nauyin matsi ko kuma za'a iya ƙara yawan zafin jiki na gyare-gyare bisa ga yanayin gyare-gyare na samfurin, amma zafin gyare-gyare bai kamata ya zama mafi girma fiye da farkon zafin jiki na samfurin ba.