Ingcaciso yoBulukhuni

Kwinzululwazi yemathiriyeli, ukuqina ngumlinganiselo wokumelana noguquko lweplastiki lwasekhaya olubangelwa kukujongwa ngoomatshini okanye ukukrazuka. Ngokubanzi, izinto ezahlukeneyo ziyahluka ngobulukhuni bazo; umzekelo, iintsimbi eziqinileyo ezifana ne-titanium kunye ne-beryllium zilukhuni kuneentsimbi ezithambileyo ezifana ne-sodium kunye ne-metallic tin, okanye iplanga kunye neeplastiki eziqhelekileyo. Kukho imilinganiselo eyahlukeneyo yobunzima: ukuqina kokukrwela, ukuqina kokungena, kunye nobunzima bokubuyela kwakhona.

Imizekelo eqhelekileyo yezinto eziqinileyo ziiseramikhi, ikhonkrithi, iintsimbi ezithile, kunye nezinto eziqinileyo, ezinokuthelekiswa nezinto ezithambileyo.

Iintlobo eziphambili zemilinganiselo yobulukhuni

Kukho iintlobo ezintathu eziphambili zemilinganiselo yokuqina: ukukrwela, ukuhlehlisa, kunye nokuphinda kuboshwe. Ngaphakathi kwezi klasi zomlinganiselo, kukho izikali zomlinganiselo ngamnye.

(1)Ukuqina komkrwelo

Ukuqina komkrwelo ngumlinganiselo wendlela isampuli enokumelana ngayo nokwaphuka okanye ukuguqulwa kweplastiki esisigxina ngenxa yokukhuhlana okuvela kwinto ebukhali. Umgaqo-siseko kukuba into eyenziwe ngezinto ezilukhuni iya kukrwela into eyenziwe ngezinto ezithambileyo. Xa uvavanya iingubo zokwaleka, ubulukhuni bokukrala bubhekisa kumandla ayimfuneko ukusika ifilimu kwi-substrate. Olona vavanyo luqhelekileyo sisikali se-Mohs, esisetyenziswa kwimineralogy. Esinye isixhobo sokwenza lo mlinganiselo sisclerometer.

Esinye isixhobo esisetyenziselwa ukwenza ezi mvavanyo ngumvavanyi wobulukhuni bepokotho. Esi sixhobo sinengalo yesikali esineempawu ezithweswe izidanga ezincanyathiselwe kwikhareji enamavili amane. Isixhobo sokukrala esinomphetho obukhali sixhonywe kwi-angle enqunywe kwangaphambili kwindawo yokuvavanya. Ukuze uyisebenzise ubunzima bobunzima obaziwayo bongezwa kwingalo yesikali kwelinye lamanqaku aphumeleleyo, kwaye isixhobo sitsalwa ngaphaya komphezulu wovavanyo. Ukusetyenziswa kobunzima kunye nokumakishwa kuvumela uxinzelelo olwaziwayo ukuba lusetyenziswe ngaphandle kwesidingo soomatshini abanzima.

(2)Ubulukhuni bokujongwa

Ubulukhuni be-Indentation bulinganisa ukuchasana kwesampuli kwi-deformation yezinto eziphathekayo ngenxa yomthwalo oqhubekayo wokunyanzeliswa kwezinto ezibukhali. Iimvavanyo zokuqina kwe-indentation zisetyenziswa ikakhulu kubunjineli kunye nesinyithi. Iimvavanyo zisebenza kwisiseko esisisiseko sokulinganisa imilinganiselo ebalulekileyo yokuhlenga-hlengisa eshiywe sisidendesi esinomlinganiselo othile nesilayishiweyo.

Izikali zokuqina zokuqina eziqhelekileyo yiRockwell, Vickers, Shore, kunye neBrinell, phakathi kwezinye.

(3)Ukuqina kwakhona

Ukuqina okuphindiweyo, okwakwaziwa ngokuba bubulukhuni obuguqukayo, bulinganisa umphakamo "wokugqabhuka" kwehamile enencam yedayimani ewisiweyo ukusuka kumphakamo ongatshintshiyo ukuya kwimathiriyeli. Olu hlobo lokuqina lunxulumene nokunwebeka. Isixhobo esisetyenzisiweyo ukuthatha lo mlinganiselo saziwa ngokuba yi-stereoscope.

Izikali ezibini ezilinganisa ubulukhuni obuphindiweyo luvavanyo lobulukhuni beLeeb kunye nesikali sobunzima beBennett.

Indlela ye-ultrasonic Contact Impedance (UCI) inquma ubunzima ngokulinganisa ukuphindaphinda kwentonga ye-oscillating. Intonga iqulethe i-shaft yensimbi enento eshukumayo kunye nedayimane emile okwephiramidi ebekwe kwelinye icala.

Ubulukhuni beVickers bezinto ezikhethiweyo eziqinileyo kunye nezinzima kakhulu

Idayimani yeyona nto inzima eyaziwayo ukuza kuthi ga ngoku, kunye nobunzima beVickers kuluhlu lwe-70-150 GPa. Idayimane ibonisa zombini i-thermal conductivity ephezulu kunye neempawu zombane zokukhusela, kwaye ingqwalasela eninzi ibekwe ekufumaneni izicelo eziphathekayo zolu lwazi.

Iidayimani zokwenziwa ziye zaveliswa ngeenjongo zoshishino ukususela ngeminyaka yoo-1950 kwaye zisetyenziswa kwiintlobo ngeentlobo zezicelo: ezonxibelelwano, i-laser optics, ukhathalelo lwempilo, ukusika, ukucola nokugrumba, njl njl.

Ukuba unomdla kwi PDC cutters kwaye ufuna ulwazi oluthe vetshe kunye neenkcukacha, UNGAQHAGAMSHELANA NATHI ngefowuni okanye ngeposi ekhohlo, okanye SITHUMELE MAIL emazantsi ephepha.