Nigute ushobora guhitamo igeragezwa ryikigereranyo cyo gupima tubular imiterere

1) Ikizamini cya Rockwell gishobora gukoreshwa mugupima ubukana bwurukuta rwicyuma?

Ibikoresho byo kwipimisha ni SA-213M T22 umuyoboro wibyuma ufite diameter yo hanze ya 16mm nuburebure bwurukuta rwa 1.65mm. Ibisubizo by'ibizamini byo gupima ubukana bwa Rockwell ni ibi bikurikira: Nyuma yo gukuraho oxyde na decarburized layer hejuru yicyitegererezo hamwe na gride, icyitegererezo cyashyizwe kumeza yumurimo wa V kandi ikizamini cya Hardwell cyakorewe muburyo bwacyo hanze, hifashishijwe ibipimo bya HRS-150S byerekana ibizamini bya Rockwell bikabije ku mutwaro: 980.7N.

Nyuma yikizamini, birashobora kugaragara ko umuyoboro wibyuma kurukuta ufite ihinduka rito, kandi igisubizo ni: agaciro gake gapimye ubukana bwa Rockwell butuma ikizamini kitemewe.

Ukurikije GB / T 230.1-2018 «Ikizamini cya Rockwell Hardness kubikoresho byuma Igice cya 1: Uburyo bwikizamini», ubukana bwa Rockwell ni 80HRBW naho uburebure buke bwikigereranyo ni 1.5mm. Umubyimba wicyitegererezo No.1 ni 1.65mm, ubunini bwurwego rwa decarburize ni 0,15 ~ 0,20mm, naho ubunini bwikitegererezo nyuma yo gukuraho igipande cya decarburize ni 1.4 ~ 1.45mm, kikaba cyegereye umubyimba muto wicyitegererezo cyerekanwe muri GB / T 230.1-2018.

Mugihe cyikizamini, bitewe nicyitegererezo nticyashyigikiwe, bizatera ihinduka ryoroshye (birashoboka ko ritagaragara kumaso), bityo ubukana bwa Rockwell bwapimwe agaciro ni buke.

2) Nigute wahitamo ibibonekaRockwelligeragezwa ryokugerageza kugerageza imiyoboro yicyuma：

Isosiyete yacu yagerageje inshuro nyinshi ubukana bwumuringoti wicyuma maze igera kumyanzuro ikurikira：

Ikigeragezo gikomeye cya Rockwell cyangwa ikigeragezo gikomeye cya Rockwell hejuru yumuyoboro wicyuma. Inkunga idahagije izatera ingero zidasanzwe kandi bivamo ibisubizo bike;

Niba ushyize inkunga ya silindrike hagati yicyuma cyoroshye-cyuma, kubera ko idashobora kwemeza ko icyerekezo cya indenter hamwe nicyerekezo cyo gupakira imitwaro hamwe nubuso bwumuyoboro wicyuma perpendicular hejuru yubuso, hamwe nubuso bwinyuma bwumuyoboro wicyuma kandi bizatera icyuho cyumubyigano wa silindrike cyu cyuho kiri hagati yumuzingi wicyuma nubuso bwa silindrike, nabyo bizatera ibisubizo byikizamini.

Hindura ibizamini bya Vickers mukugerageza gukomera kwa Rockwell nyuma yo gutonesha ibyuma byerekana icyitegererezo, bizabona agaciro gakomeye ka Rockwell.

2. Nyuma yo gukuraho oxyde na decarburisation hejuru yumuyoboro wibyuma no gutunganya indege yikizamini hejuru yinyuma no kuyishiramo, Agaciro nukuri neza ugereranije nugupima ubukana bwa Superficial Rockwell hamwe nugupima ubukana bwa Rockwell.