Zotsatira za chithandizo cha cryogenic pakuwongolera mtundu wa carbide yopangidwa ndi simenti

Kuyambira m'ma 1980, chithandizo cha cryogenic chakhala chikugwiritsidwa ntchito bwino kukhathamiritsasimenti carbide.Kafukufuku wambiri wasonyeza kuti chithandizo cha cryogenic chimakhala ndi zotsatira zabwino pamakina, kukana kuvala, kudula magwiridwe antchito, ma microstructure, komanso kupsinjika kotsalira kwa simenti ya carbide.Kupyolera mu kufufuza kosalekeza kwa ofufuza, mndandanda wa mfundo zothandiza zapezedwa.ndi mfundo za kufunikira kwa sayansi.

(1) Chithandizo cha Cryogenic chikhoza kupititsa patsogolo mphamvu yopindika, kuvala kukana ndi kudula ntchitosimenti carbide, potero kukulitsa moyo wautumiki wazida za simenti za carbide.Ndi kusanthula chikoka cha cryogenic mankhwala ndondomeko magawo pa makina katundu wa simenti carbide, amakhulupirira kuti kukhathamiritsa zotsatira za cryogenic mankhwala sasintha linearly ndi kuchepa kwa cryogenic mankhwala kutentha ndi kutambasuka akugwira nthawi.Kwa magiredi enieni asimenti carbide, pali njira yabwino yothandizira cryogenic, yomwe ingathe kukwaniritsa zotsatira zabwino kwambiri pamtengo wotsika.

(2) Zotsatira zazikulu za chithandizo cha cryogenic pa microstructure yasimenti carbidendi: ① kusintha kapangidwe ka mbewu za gawo lolimba - WC;② kulimbikitsa kusintha kwa martensitic kwa gawo lomangirira;③ Tinthu tating'onoting'ono ta carbide (gawo la eta) mu Obalalitsidwa ndikuwoloka pamatrix.

(3) Kusintha kwa martensite kwa gawo lolumikizana, mpweya wabwino wa carbides komanso kuwonjezereka kwapang'onopang'ono kotsalira pazakuthupi pambuyo pa chithandizo cha cryogenic kumatha kusintha kwambiri mphamvu ndi kuvala kukana kwa simenti ya carbide.Choncho, kusintha kwa macroscopic katundu wa cemented carbide ndi zotsatira za kuphatikizika kwa kusintha kwa gawo kulimbitsa ndi kulimbitsa maganizo.