1) Ngaba i-Rockwell hardness tester ingasetyenziselwa ukuvavanya ukuqina kodonga lombhobho wensimbi?
Izinto zokuvavanya yi-SA-213M T22 ipayipi yensimbi kunye nobubanzi obungaphandle be-16mm kunye nobukhulu bodonga lwe-1.65mm. Iziphumo zovavanyo lwe-Rockwell hardness tester zimi ngolu hlobo lulandelayo: Emva kokususa i-oxide kunye ne-decarburized layer kwi-specimen surface nge-grinder, i-specimen ibekwe kwitafile yokusebenza emise okwe-V kwaye uvavanyo lobulukhuni lwe-Rockwell lwenziwa ngokuthe ngqo kumphezulu walo wangaphandle, usebenzisa i-HRS-150S yedijithali yokubonisa i-Rockwell ubulukhuni umvavanyi kumthwalo .980.
Emva kovavanyo, kunokubonwa ukuba ipayipi yensimbi eludongeni ine-deformation encinci, kwaye umphumo uthi: ixabiso eliphantsi elilinganiswe nobunzima be-Rockwell lenza uvavanyo lungasebenzi.
Ngokutsho kwe-GB / T 230.1-2018 « Uvavanyo lwe-Rockwell Ubunzima bezinto zetsimbi Icandelo 1: Iindlela zokuvavanya », ukuqina kwe-Rockwell yi-80HRBW kunye nobukhulu obuncinci be-specimen yi-1.5mm. Ubukhulu besampulu ye-No.1 yi-1.65mm, ubukhulu be-decarburized layer yi-0.15 ~ 0.20mm, kunye nobukhulu besampuli emva kokususa i-decarburized layer yi-1.4 ~ 1.45mm, ekufutshane nobukhulu obuncinci besampula echazwe kwi-GB / T 230.1-2018.
Ngexesha lovavanyo, ngenxa yeziko lesampulu ayixhaswanga, iya kubangela ukuguqulwa (okunokwenzeka okungabonakaliyo ngeso lenyama), ngoko ke ixabiso elilinganisiweyo lobulukhuni beRockwell liphantsi.
2) Indlela yokukhetha okungaphezuluRockwellumhloli wobunzima bokuvavanya imibhobho yentsimbi:
Inkampani yethu iye yavavanya ngokuphindaphindiweyo ubulukhuni bombhobho wensimbi kwaye yafikelela kwizigqibo ezilandelayo:
Uvavanyo lobulukhuni be-Rockwell okanye uvavanyo lobulukhuni be-Rockwell kumphezulu wombhobho wentsimbi obhityileyo. Ukuxhaswa kodonga olunganeleyo kuya kubangela ukuguqulwa kwe-specimen kwaye kubangele iziphumo zovavanyo oluphantsi;
Ukuba ubeka inkxaso cylindrical embindini obhityileyo-udonga ityhubhu yentsimbi, kuba ayikwazi ukuqinisekisa ukuba i-axis indenter kunye nolwalathiso ukulayisha umthwalo kunye nomphezulu wentsimbi umbhobho perpendicular kumphezulu, kunye nomphezulu wangaphandle umbhobho yentsimbi kwaye kuya kubangela umsantsa inkxaso cylindrical umsantsa phakathi komhlaba setyhula umbhobho wentsimbi kunye nesiphumo sovavanyo oluphantsi, kwakhona kuya kubangela umphezulu ophantsi wovavanyo.
Guqula uvavanyo lobulukhuni beVickers ukuya kuvavanyo lobulukhuni beRockwell emva kokupolisha isifakelo sesampulu yombhobho wentsimbi, uya kufumana ixabiso elichanekileyo lobulukhuni beRockwell.
2. Emva kokususa oxide kunye decarburization umaleko kumphezulu umbhobho yentsimbi kunye machining indiza yovavanyo kumphezulu ongaphandle kwaye inlaying, Ixabiso ichaneke ngakumbi xa kuthelekiswa Superficial Rockwell ubulukhuni tester kunye Rockwell ubulukhuni tester.
Ixesha lokuposa: May-28-2024
