Kune marudzi akawanda emafaira esimbi, anosanganisira mafaira efitter, saw files, shaping files, special-shaped files, watchmaker's files, specialmaker’s files, and wood files. Maitiro avo ekuyedza kuomarara anonyanya kuenderana neyakajairwa chiyero chepasi rose ISO 234-2: 1982 Simbi Mafaira uye Rasps - Chikamu 2: Hunhu hweCheka.
Chiyero chepasi rose chinotsanangura nzira mbiri dzekuyedza: iyo Rockwell kuomarara nzira uye yeVickers kuoma nzira.
1. Panzira yeRockwell kuoma, chikero cheRockwell C (HRC) chinowanzoshandiswa, uye kuoma kunodiwa kunowanzopfuura 62HRC. Kana kuoma kwacho kwakakwira, Rockwell A chiyero (HRA) inogona zvakare kushandiswa kuyedza, uye kukosha kwekuoma kunowanikwa kuburikidza nekutendeuka. Kuomarara kwemubato wefaira (nzvimbo inoverengera zvikamu zvitatu-zvishanu zvehurefu hwakazara kubva pamuromo wekubata) haizove yakakwirira kudarika 38HRC, uye kuoma kwefaira rehuni hakuzove kwakaderera kupfuura 20HRC.
2.The Vickers hardness tester inogonawo kushandiswa pakuedza, uye iyo inoenderana nekuomarara kukosha ichawanikwa kuburikidza nekutendeuka mushure mekuedzwa. Vickers kuomarara kwakakodzera kuyedzwa kwemafaira esimbi ane matete akaturikidzana kana mushure mekurapwa kwepamusoro. Kune mafaira esimbi anobatwa nekupisa kwepamusoro kana kurapwa kwemakemikari kupisa, kuomarara kwavo kunozoongororwa pane yakatsetseka isina chinhu 5 mm kusvika 10 mm kure neyakachekwa faira yekupedzisira.
Kuoma kwezino rezino kuchava pakati pe55 HRC ne58 HRC, iyo yakakodzera kuongororwa neVickers kuoma nzira. Kana paine chinzvimbo chakakodzera, iyo workpiece inogona kuiswa zvakananga pabench rekushanda reVickers kuomarara tester yebvunzo. Nekudaro, mazhinji maworkpieces haagone kuyerwa zvakananga; mumamiriro ezvinhu akadaro, tinoda kugadzirira sampuli dze workpieces kutanga. Muenzaniso wekugadzirira maitiro unosanganisira metallographic yekucheka muchina, metallographic kugaya & polishing muchina, uye metallographic inokwira muchina. Zvadaro, isa sampuli dzakagadzirirwa paVickers hardness tester workbench yekuedza.
Izvo zvinofanirwa kucherechedzwa kuti kuomarara bvunzo yefaira mubato unogona kungoitwa kana iyo nzvimbo yakagadziriswa kuti isangane nemamiriro ekuedzwa; kunze kwezvipikirwa zveiyi chiyero, kuomarara bvunzo kwemafaira esimbi kuchaitawo zvinoenderana ne ISO 6508 uye ISO 6507-1.
Nguva yekutumira: Sep-24-2025
