Mhedzisiro ye cryogenic kurapwa pane mechaniki zvivakwa zve simende carbide

Iyo mechanical properties yesimende carbidezvinonyanya kuratidzwa mukuomarara, kuchinjika simba, kumanikidza simba, kuomarara kwemhedzisiro, kuneta simba, nezvimwe.

Kunyangwe cryogenic treatment inogona kuvandudza ma mechanic properties ye cemented carbide ndiyo inonyanya kunzwisisika kutaura kwekubudirira kwe cryogenic treatment technology.Liu Yajun et al.akaita cryogenic treatment paYW1carbide blades.Mhedzisiro yacho yakaratidza kuti mushure mekurapa cryogenic, iyo microhardness yemhando iyi yecarbidemablades akawedzera kubva pa1764HV kuenda pa2263.7HV, uye kuoma kweRockwell kwakawedzera kubva pa90HRA kuenda pa92HRA.Jiang et al.akaisa YG8 simende carbide munzvimbo yakaderera tembiricha 77K nokuda cryogenic kurapwa uye akawana kuti kuoma kwayo uye compressive simba kwakawedzera ne 4.9% uye 10.1% zvichiteerana.

Chen Zhenhua et al.akawanawo mhedzisiro yakafanana mushure mekurapwa kwe cryogenic yegiredhi rimwechete resimende carbide.Zhang Pingping akaisa YG6X yakanaka-grained simende carbide mubhokisi cryogenic nokuda cryogenic kurapwa uye akawana kuti kukotama kwayo simba uye kumanikidza simba kwakawedzera ne7,6% uye 10,8% zvichiteerana.Chen Hongwei akafanotonhoreraYG15 simende carbideuye woinyudza mumvura ine nitrogen yekurapa cryogenic.Mhedzisiro yacho yakaratidza kuti kana ichienzaniswa neyakatangira cryogenic kurapwa, iyo yekukotama simba reYG15 simende carbidewakashanduka kusvika muna +5.19%.Pamusoro pezvo, kune zvakare mishumo nezve cryogenic kurapwa kuvandudza ma mechanical zvivakwa zvakadai sekukanganisa kuoma uye kuneta simba resimende carbide.Parizvino, tsvakiridzo yenyanzvi dzemumba nedzekune dzimwe nyika pamusoro pezvakagadzirwa necemented carbide mushure mekurapa cryogenic inonyanya kutarisisa zvinhu zviviri: kuomarara (kusanganisira Rockwell kuoma uye Vickers kuoma) uye kusimba kwesimba.Chiyero chekusiyana kwekuita chine simba guru.Mifananidzo 1 uye 2 inopfupisa kuchinja kwekuoma uye kushanduka kwesimba reWC-Co cemented carbide neCo content mushure mekurapa cryogenic, uye maitiro avo ekuchinja anogona kukurukurwa.