Ukuhlaziywa Kokukhethwa Kohlobo Lwemishini Yokuhlola Ubulukhuni Bezinto Zokusebenza Ezinkulu Nezinzima

Njengoba kwaziwa kahle, indlela ngayinye yokuhlola ubulukhuni—kungakhathaliseki ukuthi isebenzisa iBrinell, Rockwell, Vickers, noma abahloli bobulukhuni beLeeb abaphathwayo—inemikhawulo yayo futhi ayikho esebenza kuyo yonke indawo. Ezintweni zokusebenza ezinkulu, ezisindayo ezinobukhulu obungajwayelekile bejometri njengalezo eziboniswe kumidwebo yesibonelo engezansi, abahloli bobulukhuni beLeeb abaphathwayo njengamanje basetshenziswa kabanzi ezindleleni eziningi zokuhlola ukulawula ubulukhuni babo.

Umhloli wobulukhuni weLeeb usebenzisa indlela yokuhlola enamandla, futhi kunezici eziningi ezithinta ukunemba kokuhlolwa kobulukhuni bawo, njenge-modulus elastic yezinto zokwakha, ukuguguleka kwebhola le-indenter, ubulukhuni bomphezulu wento yokusebenza, i-radius yokugoba, kanye nokujula kwengqimba yokuqina kobuso. Uma kuqhathaniswa nezindlela zokuhlola ezimile zabahloli bobulukhuni beBrinell, Rockwell, kanye neVickers, iphutha laso lokuhlola likhulu kakhulu. Ngakho-ke, uma kudingeka ukunemba okuphezulu kokuhlolwa kobulukhuni, kufanele simkhethe kanjani umhloli wobulukhuni?

Ngesikhathi senqubo yokuhlola izinto ezinkulu nezisindayo kusetshenziswa abahloli bokuqina abavamile, ukulayishwa kwezinto zokusebenza ngaphambi kokuhlolwa, ukulayishwa nokuthululwa komhloli wokuqina ngesikhathi sokuhlolwa, kanye nokuthululwa kwezinto zokusebenza ngemva kokuhlolwa konke kuzoletha umthwalo omkhulu enkambisweni yokusebenza. Ngakho-ke, kufanele simkhethe kanjani umhloli wokuqina?

Kunconywa abahloli bokuqina ababili abangaphezulu abanesakhiwo sekhanda lokuphakamisa ukuze kuqedwe yonke inqubo yokuhlola, njengesihloli sethu sokuqina kokuqina se-Rockwell esiku-inthanethi esenziwe ngokwezifiso i-HRZ-150GE kanye nesihloli sokuqina kokuqina se-Rockwell esizenzakalelayo se-desktop head up&down i-SCR3.0.

Lesi sixazululo sokuhlola ubulukhuni senza ukuhlolwa kobulukhuni kweRockwell ngokuhambisana nezindinganiso zokuhlola ubulukhuni zomhlaba wonke (njenge-ISO 6506-1:2014 kanye ne-ISO 6507-1:2018). Ngokufanayo, ekuhlolweni kobulukhuni kweVickers kanye neBrinell, isakhiwo sokuphakamisa okuzenzakalelayo sekhanda lokuhlola singasetshenziswa futhi. Okwamanje, sihlangabezana nezidingo zokuhlolwa okunembe kakhulu kwezingxenye zokusebenza ezisindayo kanye nokukhiqizwa okuphumelelayo.