Kusiyana pakati pa Vickers hardness tester ndi microhardness tester

Chifukwa cha mayeso a Vickers hardness ndi microhardness, ngodya ya diamondi ya indenter yomwe imagwiritsidwa ntchito poyesa ndi yofanana. Kodi makasitomala ayenera kusankha bwanji Vickers hardness tester? Lero, ndifotokoza mwachidule kusiyana pakati pa Vickers hardness tester ndi microhardness tester.

Kugawa kwa kukula kwa mphamvu yoyesera Vickers kuuma ndi sikelo yoyesera ya microhardness

Choyesera kuuma kwa Vickers: mphamvu yoyesera F≥49.03N kapena≥HV5

Kulimba kwa Vickers pang'ono: mphamvu yoyesera 1.961N≤F < 49.03N kapena HV0.2 ~ < HV5

Choyesera cha Microhardness: mphamvu yoyesera 0.09807N≤F < 1.96N kapena HV0.01 ~ HV0.2

Ndiye kodi tiyenera kusankha bwanji mphamvu yoyenera yoyesera?

Tiyenera kutsatira mfundo yakuti kuyika mkati kwakukulu, kulondola kwa muyeso kumakhala kolondola ngati mikhalidwe ya workpiece ilola, ndikusankha momwe mukufunira, chifukwa kuyika mkati kochepa, kulakwitsa kwakukulu pakuyesa kutalika kwa diagonal, zomwe zingapangitse kuti kulakwitsa kwa kuuma kuwonjezere.

Mphamvu yoyesera ya microhardness tester nthawi zambiri imakhala ndi: 0.098N (10gf), 0.245N (25gf), 0.49N (50gf), 0.98N (100gf), 1.96N (200gf), 2.94 (300gf), 4.90N (500gf), 9.80N (1000gf) (19.6N (2.0Kgf) ngati mukufuna)

Kukula kwake nthawi zambiri kumakhala ndi: nthawi 100 (kuyang'ana), nthawi 400 (kuyeza)

Mulingo wa mphamvu yoyesera ya Vickers hardness tester ungagawidwe m'magulu awa: 2.94N (0.3Kgf), 4.9N (0.5Kgf), 9.8N (1.0Kgf), 19.6N (2.0Kgf), 29.4N (3.0Kgf), 49.0N (5.0Kgf), 98.0N (10Kgf), 196N (20Kgf), 294N (30Kgf), 490N (50Kgf) (mitundu yosiyanasiyana ili ndi mawonekedwe osiyanasiyana a mphamvu yoyesera.)

Kapangidwe ka kukula nthawi zambiri kamakhala: nthawi 100, nthawi 200

Choyesera kuuma kwa Vickers cha Shandong Shancai/Laizhou Laihua Testing Instrument chingathe kuchita mayeso a kuuma pazigawo zolumikizidwa kapena malo olumikizirana.

Malinga ndi kuuma komwe kwayesedwa, mtundu wa weld ndi kusintha kwa zitsulo zitha kuweruzidwa. Mwachitsanzo, kuuma kwambiri kungakhale chifukwa cha kutentha kwambiri panthawi yowotcherera, pomwe kuuma kochepa kwambiri kungasonyeze kusakwanira kwa kuwotcherera kapena mavuto azinthu.

Dongosolo loyezera la Vickers lomwe lakonzedwa lidzayendetsa pulogalamu yoyesera yokha ndipo lidzawonetsa ndikulemba zotsatira zake.

Pa zotsatira za mayeso oyesera, lipoti lofananira la zithunzi likhoza kupangidwa lokha.

Ndikofunikira kudziwa kuti posankha dera loyimirapaNgati mugwiritsa ntchito weld ngati poyesera, onetsetsani kuti derali lilibe mabowo, ming'alu kapena zolakwika zina zomwe zingakhudze zotsatira za mayeso.

Ngati muli ndi mafunso okhudza kuyang'anira weld, musazengereze kulankhulana nafe