Hitamo ibikoresho bitandukanye byo gupima ubukana bw'umubiri kugira ngo bipimwe hashingiwe ku bwoko bw'ibikoresho

1. Icyuma cyazimye kandi gishyushye

Ikizamini cy'ubukana bw'icyuma cyazimye kandi gishyushye gikoresha cyane cyane igipimo cya HRC cya Rockwell. Iyo ibikoresho ari bito kandi igipimo cya HRC kitari gikwiye, igipimo cya HRA gishobora gukoreshwa mu mwanya wacyo. Iyo ibikoresho ari bito, igipimo cy'ubukana bwa Rockwell HR15N, HR30N, cyangwa HR45N gishobora gukoreshwa.

2. Icyuma gikomeye cyo hejuru

Mu nganda, hari igihe igice cy’imbere cy’icyuma gikoreshwa gisabwa kugira ubukomere bwiza, mu gihe ubuso nabwo busabwa kugira ubukomere bwinshi no kudashira. Muri iki gihe, gukaraba inshuro nyinshi, gukoresha imiti igabanya ubushyuhe, gukoresha nitriding, gukoresha karuboni n’izindi nzira zikoreshwa mu gutunganya ubukomere bw’ubuso ku gice gikoreshwa. Ubunini bw’urwego rwo gukomera ku buso muri rusange buri hagati ya milimetero nke na milimetero nke. Ku bikoresho bifite ubunini bunini bukomeza ubuso, ibipimo bya HRC bishobora gukoreshwa mu gupima ubukomere bwabyo. Ku byuma bikomeza ubunini buringaniye, ibipimo bya HRD cyangwa HRA birashobora gukoreshwa. Ku bipimo byo gukomera ku buso bito, ibipimo byo gukomera ku buso bya Rockwell HR15N, HR30N, na HR45N bigomba gukoreshwa. Ku bipimo byo gukomera ku buso bito, hagomba gukoreshwa isuzuma ry’ubukomere rya micro Vickers cyangwa isuzuma ry’ubukomere rya ultrasonic.

3. Icyuma gishongeshejwe, icyuma gisanzwe, icyuma cyoroheje

Ibikoresho byinshi by'icyuma bikorwa mu buryo busanzwe cyangwa busanzwe, kandi hari amasahani y'icyuma akonje azungurutswa na yo agenwa hakurikijwe urwego rutandukanye rwo gufunga. Isuzuma ry'ubukana bw'ibyuma bitandukanye bikunze gukoresha ibipimo bya HRB, kandi rimwe na rimwe ibipimo bya HRF nabyo bikoreshwa ku masahani yoroshye kandi yoroshye. Ku masahani yoroshye, hagomba gukoreshwa ibipimo bya Rockwell by'ubukana bwa HR15T, HR30T, na HR45T.

4. Icyuma kidasesagura

Ibikoresho by'icyuma kidafunze bikunze gutangwa mu buryo nko gupfunyika, kuzimya, gushyushya, no gupima neza. Amabwiriza y'igihugu agaragaza agaciro k'ubukana bwo hejuru n'ubwo hasi, kandi isuzuma ry'ubukana rikunze gukoresha igipimo cya Rockwell gipima ubukana bwa HRC cyangwa HRB. Igipimo cya HRB kigomba gukoreshwa mu byuma bidafunze bya austenitic na ferritic, igipimo cya HRC cya Rockwell gikoreshwa mu byuma bidafunze bya martensite na precipitation, naho igipimo cya HRN cyangwa igipimo cya HRT cya Rockwell gikoreshwa mu byuma bidafunze bifite inkuta nto n'impapuro zifite ubugari buri munsi ya mm 1 ~ 2.

5. Icyuma gikozwe mu bucuzi

Ikizamini cyo gukomera kwa Brinell gikoreshwa mu byuma bicuzwe, kuko imiterere y'icyuma gicuzwe idahagije, kandi icyitegererezo cya Brinell ni kinini. Kubwibyo, ikizamini cyo gukomera kwa Brinell gishobora kugaragaza ibisubizo byuzuye by'imiterere y'icyuma n'imiterere y'ibice byose by'ibikoresho.

6. Icyuma gishongeshejwe

Ibikoresho by'icyuma gishongeshejwe akenshi birangwa n'imiterere idahwitse n'ibinyampeke bikomeye, bityo ikizamini cyo gukomera kwa Brinell gikunze gukoreshwa. Igipimo cyo gukomera cya Rockwell gishobora gukoreshwa mu gupima gukomera kwa bimwe mu bikoresho by'icyuma gishongeshejwe. Aho nta mwanya uhagije ku gice gito cy'igipimo cyo gukomera kwa Brinell, igipimo cya HRB cyangwa HRC gikunze gukoreshwa mu gupima gukomera, ariko ni byiza gukoresha igipimo cya HRE cyangwa HRK, kuko igipimo cya HRE na HRK gikoresha imipira y'icyuma ifite umurambararo wa mm 3.175, ishobora kubona impuzandengo nziza kuruta imipira y'icyuma ifite umurambararo wa mm 1.588.

Ibikoresho by'icyuma gikomeye gishobora gukoreshwa mu buryo busanzwe bikoresha icyuma gipima ubukana bwa Rockwell HRC. Iyo ibikoresho bidahuje, amakuru menshi ashobora gupimwa no gufatwa ku gaciro mpuzandengo.

7. Karubide ivanze (ibumba rikomeye)

Gupima ubukana bw'ibikoresho bikomeye bya aluminiyumu akenshi bikoresha gusa igipimo cya HRA cya Rockwell.

8. Ifu