Umehluko phakathi komhloli wokuqina we-Vickers kanye ne-microhardness tester

Ngenxa yokuhlolwa kokuqina kwe-Vickers nokuqina okuncane, i-engeli yedayimane ye-indenter esetshenziselwa ukukala iyafana. Amakhasimende kufanele akhethe kanjani umhloli wokuqina we-Vickers? Namuhla, ngizochaza kafushane umehluko phakathi komhloli wokuqina we-Vickers kanye ne-microhardness tester.

Isigaba samandla okuhlola usayizi we-Vickers ubulukhuni nesikali sokuhlola sokuqina kwe-microhardness

Umhloli wokuqina kaVickers: test force F≥49.03N noma≥HV5

Ubulukhuni beVickers bomthwalo omncane: amandla okuhlola 1.961N≤F <49.03N noma HV0.2 ~ < HV5

Umhloli we-Microhardness: amandla okuhlola 0.09807N≤F <1.96N noma HV0.01 ~ HV0.2

Ngakho-ke kufanele siwakhethe kanjani amandla okuhlola afanele?

Kufanele silandele isimiso sokuthi uma i-indent ikhudlwana, inani lokulinganisa linembe kakhulu uma izimo zomsebenzi zisivumela, futhi sikhethe njengoba kudingeka, ngoba ukuhlehlisa kuncane, likhulu iphutha ekukaleni ubude be-diagonal, okuzoholela ekwenyukeni kwephutha lenani lokuqina.

Amandla okuhlola okuhlola ubulukhuni obuncane ngokuvamile afakwe: 0.098N (10gf), 0.245N (25gf), 0.49N (50gf), 0.98N (100gf), 1.96N (200gf), 2.94 (300gf), 9. (1000gf) (19.6N (2.0Kgf) ngokuzithandela)

Ukukhulisa ngokuvamile kufakwe: izikhathi eziyi-100 (ukubuka), izikhathi ezingama-400 (isilinganiso)

Izinga lamandla okuhlola lomhloli wokuqina we-Vickers lingahlukaniswa ngokuthi: 2.94N (0.3Kgf), 4.9N (0.5Kgf), 9.8N (1.0Kgf), 19.6N (2.0Kgf), 29.4N (3.0Kgf), 49.0N (5.0Kgf), (1. I-196N (20Kgf), 294N (30Kgf), 490N (50Kgf) (amamodeli ahlukene anokumiswa okuhlukile kwamandla okuhlola.)

Ukucushwa kokukhulisa kuvamise ukuthi: izikhathi eziyi-100, izikhathi ezingama-200

Umhloli wokuqina we-Vickers we-Shandong Shancai/Laizhou Laihua Testing Instrument angenza ukuhlolwa kokuqina ezingxenyeni ezishiselwe noma ezindaweni zokushisela.

Ngokwenani lokuqina elilinganiselwe, ikhwalithi ye-weld kanye nezinguquko ze-metallurgical zingahlulelwa. Isibonelo, ukuqina okuphezulu kakhulu kungase kube ngenxa yokufaka ukushisa okukhulu ngesikhathi sokushisela, kuyilapho ubulukhuni obuphansi kakhulu bungase bubonise izinkinga zokushisela noma zekhwalithi yezinto ezibonakalayo ezinganele.

Isistimu yokulinganisa ye-Vickers emisiwe izosebenzisa uhlelo lokuhlola oluzenzakalelayo ngokugcwele futhi ibonise futhi irekhode imiphumela ehambisanayo.

Ngemiphumela yokuhlolwa kokulinganisa, umbiko wesithombe ohambisanayo ungenziwa ngokuzenzakalelayo.

Kubalulekile ukuqaphela ukuthi lapho ukhetha indawo emele ye.i-weld njengendawo yokuhlola, qiniseka ukuthi le ndawo ayinazo izimbotshana, imifantu noma ezinye iziphambeko ezingase zithinte imiphumela yokuhlolwa.

Uma unemibuzo mayelana nokuhlolwa kwe-weld, zizwe ukhululekile ukuxhumana nathi