9H inoreva kuoma uye 9D inoreva kukombama kwe membrane.
Asi hapana chaiyo 9D, zvisinei kuti mangani maD mafirimu akashatirwa anongokamurwa kuita matatu curvatures: ndege, 2.5D, uye 3D.
9H inoreva kuoma, izvo chaizvoizvo zvinoreva kuoma kwepenzura, kwete kuoma kweMohs.Kunyange chimedu chegirazi chinogona kudarika kuoma uku, iyo iriwo gimmick yekushambadzira.
Kuoma kwakakamurwa kuva:
1. Kukwenya kuoma.Inonyanya kushandiswa kuenzanisa chiyero chekunyorova uye kuoma kwemaminerari akasiyana.Nzira yacho ndeyekusarudza tsvimbo ine mugumo wakaoma uye imwe yakapfava kune imwe, uye kukwenya zvinhu zvakaedzwa pamwe chete netsvimbo, uye kuona kupfava uye kuoma kwezvinhu zvakaedzwa zvinoenderana nenzvimbo yekukwenya.Hunhu hunotaura, mikwenya yakagadzirwa nezvinhu zvakaoma yakareba, uye mikwenya yakagadzirwa nezvinhu zvakapfava ipfupi.
2. Shingairira-mukuoma.Inonyanya kushandiswa kumidziyo yesimbi, iyo nzira ndeyekutsikirira yakatsanangurwa indenter mune yakaedzwa zvinhu neimwe mutoro, uye kuenzanisa kuomarara kwechinhu chakaedzwa nehukuru hwenzvimbo yepurasitiki deformation pamusoro pechinhu.
Nekuda kwemusiyano we indenter, kuremerwa uye kuremerwa kwenguva, kune akawanda marudzi e indentation kuomarara, kunyanya Brinell kuomarara, Rockwell kuomarara, Vickers kuomarara uye microhardness.
3. Rebound kuoma.Inonyanya kushandiswa kumidziyo yesimbi, iyo nzira ndeyekugadzira nyundo diki diki inodonha yakasununguka kubva kune imwe nzvimbo kureba kuti iite sampuli yechinhu chinofanirwa kuongororwa, uye kushandisa huwandu hwesimba rekumanikidza rakachengetwa (uye rozoburitswa) nemuenzaniso panguva kukanganisa maitiro (kuburikidza nekudzoka kwenyundo duku).jump height determination) kuona kuoma kwezvinhu.
Iyo Rockwell kuomarara nzira yekuyedza ndiyo yeAmerica SP Yakakurudzirwa naRockwell muna 1919, inokunda izvo zvikanganiso zvataurwa pamusoro apa zveBrinell assay.Iyo indenter inoshandiswa Rockwell kuomarara idhaimani koni ine taper angle ye120 ° kana bhora resimbi rine dhayamita ye1/16 inch (1 inch yakaenzana 25.4 mm), uye kudzika kwakadzika kunoshandiswa sehwaro hwekuyera kuoma. value.
Nguva yekutumira: Nov-18-2022