Kusiyana pakati pa Vickers hardness tester ndi microhardness tester

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

Mayeso amphamvu gawo la kukula kwa Vickers kuuma ndi microhardness tester scale

Vickers hardness tester: kuyesa mphamvu F≥49.03n kapena≥HV5

Kachilo kakang'ono ka Vickers kuuma: kuyesa mphamvu 1.961N≤F <49.03N kapena HV0.2 ~ <HV5

Microhardness tester: kuyesa mphamvu 0.09807N≤F <1.96N kapena HV0.01 ~ HV0.2

Ndiye tiyenera kusankha bwanji mphamvu yoyesera yoyenerera?

Tiyenera kutsatira mfundo yakuti indentation ikuluikulu, yolondola kwambiri yoyezera mtengo ngati mikhalidwe ya workpiece imalola, ndikusankha ngati pakufunika, chifukwa chocheperako, ndiye kuti cholakwika chachikulu pakuyeza kutalika kwa diagonal, chomwe chidzatsogolera kuwonjezeka kwa cholakwika cha mtengo wouma.

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), 9. (1000gf) (19.6N (2.0Kgf) ngati mukufuna)

Kukulitsa nthawi zambiri kumakhala ndi: nthawi 100 (kuyang'ana), nthawi 400 (muyeso)

Mphamvu yoyesera ya Vickers kuuma woyesa akhoza kugawidwa mu: 2.94N (0.3Kgf), 4.9N (0.5Kgf), 9.8N (1.0Kgf), 19.6N (2.0Kgf), 29.4N (3.0Kgf), 49.0Kg0 (5.0Kgf), (1. 196N (20Kgf), 294N (30Kgf), 490N (50Kgf) (mitundu yosiyanasiyana imakhala ndi masanjidwe osiyanasiyana amphamvu.)

Kukula kokulirapo nthawi zambiri kumakhala: nthawi 100, nthawi 200

Woyesa kuuma kwa Vickers wa Shandong Shancai/Laizhou Laihua Testing Instrument amatha kuyesa kuuma pazigawo zowotcherera kapena zowotcherera.

Malinga ndi kuyeza kuuma mtengo, ubwino wa weld ndi kusintha metallurgical akhoza kuweruzidwa. Mwachitsanzo, kuuma kwambiri kungakhale chifukwa cha kutentha kwambiri panthawi yowotcherera, pamene kuuma kochepa kwambiri kungasonyeze kusakwanira kuwotcherera kapena mavuto azinthu.

Dongosolo loyezera la Vickers lokhazikika lidzayendetsa pulogalamu yoyesera yokha ndikuwonetsa ndikujambulitsa zotsatira zofananira.

Pazotsatira za mayeso oyezera, lipoti lofananira lazithunzi litha kupangidwa zokha.

Ndikofunika kuzindikira kuti posankha malo oimirapakutenthetsa ngati malo oyesera, onetsetsani kuti malowa alibe pores, ming'alu kapena zolakwika zina zomwe zingakhudze zotsatira za mayeso.

Ngati muli ndi mafunso okhudzana ndi kuyang'anira weld, omasuka kulankhula nafe