Umhloli wokuqina we-Vickers usebenzisa i-diamond indenter, ecindezelwa ebusweni besampula ngaphansi kwamandla athile okuhlola. Ukukhipha amandla okuhlola ngemva kokugcina isikhathi esithile futhi ulinganise ubude be-diagonal bokuhlehlisa, bese inani lobulukhuni be-Vickers (HV) libalwa ngokuvumelana nefomula.
Umthelela wekhanda elicindezela phansi
- Ukusebenzisa amandla okuhlola: Inqubo yokucindezela ikhanda phansi kuyisinyathelo esibalulekile sokudlulisa amandla okuhlola asethiwe (afana no-1kgf, 10kgf, njll.) ebusweni bento ehloliwe ngokusebenzisa i-indenter.
- Ukwakha i-indent: Ukucindezela kwenza i-indenter ishiye ukuhlehlisa kwedayimane okucacile endaweni ebonakalayo, futhi ukuqina kubalwa ngokulinganisa ubude be-diagonal bokuhlehlisa.
Lokhu kusebenza kusetshenziswa kabanzi ekuhloleni ubulukhuni bezinto zensimbi, amashidi amancanyana, okokunamathela, njll., ngoba kunobubanzi obubanzi bokuhlola amandla kanye nokuhlehlisa okuncane, okulungele ukukalwa ngokunemba.
Njengomklamo ojwayelekile wesakhiwo se-Vickers hardness tester (ehlukile kuhlobo olukhuphukayo lwebhentshi lomsebenzi), izinzuzo "zokucindezela ikhanda phansi" ukuhlakanipha kokusebenza okunengqondo kanye nesakhiwo semishini, imininingwane kanje,
1. Ukusebenza okulula, hambisana nemikhuba yomshini womuntu
Ekhanda elicindezela ukwakheka phansi, u-opharetha angabeka ngokuqondile isampula ebhentshini lokusebenzela elingaguquki, futhi aqedele ukuthintana nokulayisha kwe-indenter ngekhanda liye phansi, ngaphandle kokuhlala elungisa ubude bebhentshi lomsebenzi. Le logic yokusebenza "phezulu kuya phansi" ifaneleka kakhulu imikhuba yokusebenza evamile, ikakhulukazi enobungane kwabaqalayo, inganciphisa izinyathelo eziyisicefe zokubeka isampula nokuqondanisa, inciphise amaphutha okusebenza komuntu.
2. Ukuzinza kokulayisha okunamandla, ukunemba okuphezulu kokulinganisa
Isakhiwo sokucindezela ikhanda sivamise ukusebenzisa indlela yokulayisha eqine kakhudlwana (njengezikulufu ezinembayo nezinsimbi zomhlahlandlela). Uma usebenzisa amandla okuhlola, ukuma kanye nesivinini sokulayisha se-indenter kulula ukusilawula, okunganciphisa ngempumelelo ukudlidliza komshini noma ukuvala. Ukuze uthole izinto ezinembayo ezifana namashidi amancane, ama-coatings, nezingxenye ezincane, lokhu kuzinza kungagwema ukuwohloka kwe-indent okubangelwa ukulayisha okungazinzile futhi kuthuthukise kakhulu ukunemba kokulinganisa.
3. Ukuguquguquka okubanzi kwamasampuli
Kumasampula osayizi omkhulu, umumo ongajwayelekile noma isisindo esinzima, ukwakheka kwekhanda phansi akudingi ukuthi ibhentshi lomsebenzi lithwale imikhawulo eminingi noma ukuphakama (ibhentshi lokusebenzela lingalungiswa), futhi lidinga kuphela ukuqinisekisa ukuthi isampula ingafakwa ebhentshini lokusebenza, okuyinto "ebekezelela" kakhulu isampula. Ukwakheka kwebhentshi lokusebenzela elikhuphukayo kungase kukhawulwe ukushaywa komthwalo nokuphakamisa ibhentshi, ngakho-ke kunzima ukuzivumelanisa namasampula amakhulu noma asindayo.
4. Ukuphindaphinda okungcono kokulinganisa
Indlela yokulayisha ezinzile kanye nenqubo yokusebenza elula inganciphisa iphutha elibangelwa ukuhluka kokusebenza komuntu (njengokuchezuka kokuqondanisa lapho ibhentshi liphakamisa). Lapho ukala isampula efanayo izikhathi eziningi, isimo sokuxhumana phakathi kwe-indenter namasampuli siyahambisana kakhulu, ukuphindaphinda kwedatha kuba ngcono, futhi ukwethembeka komphumela kuphezulu.
Sengiphetha, umhloli wokuqina wokuqina we-Vickers unezinzuzo ezengeziwe ekululameni, ekuzinzeni, nasekuzivumelaniseni nezimo ngokuthuthukisa ingqondo yokusebenza kanye nesakhiwo sokusebenza, futhi sifanele ngokukhethekile ukuhlolwa kwempahla, ukuhlola amasampula ezinhlobo eziningi noma izimo zokuhlola imvamisa ephezulu.
Isikhathi sokuthumela: Jul-16-2025
