Ungahlola kanjani uma umhloli wobulukhuni usebenza ngokujwayelekile?
1.Uhloli lobulukhuni kufanele luqinisekisiswe ngokugcwele kanye ngenyanga.
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3. Lapho umhloli we-hardness esebenza, akuvunyelwe ukuthinta ngqo ingaphezulu lensimbi ukuze ulinganiswe ukuvikela ukunemba kokulinganisa okungalungile noma ukulimaza i-diamond cone indenter ekhanda lomhloli wobulukhuni.
4. Ngesikhathi sokusebenzisa i-indenter yedayimane, kuyadingeka ukuhlola ukuqedwa komhlaba kwe-indenter kanye ngonyaka. Ngemuva kwesilinganiso ngasinye, i-indenter kufanele ibuyiselwe ebhokisini elikhethekile ukuze ligcinwe.
Hardeness test tester trations:
Ngaphezu kwezindlela ezikhethekile zokuphepha lapho usebenzisa abahloli bezinkinga ezihlukahlukene, kunezinkinga ezithile ezijwayelekile okufanele zinake, ezibhalwe ngezansi:
1. I-hardness test ngokwayo izokhiqiza izinhlobo ezimbili zamaphutha: Iphutha elibangelwa ukuguquguquka nokuhamba kwezingxenye zalo; elinye yiphutha elibangelwa yi-hardness parameter edlula izinga elishiwo. Ngephutha lesibili, umhloli we-hardness udinga ukulinganiswa ngebhulokhi ejwayelekile ngaphambi kokukalwa. Ngemiphumela yokulinganisa ye-Rocwell Harveness Tester, umehluko ufaneleke ngaphakathi ± 1. Inani lokulungiswa linganikezwa ngenani elizinzile elinomehluko ngaphakathi ± 2. Lapho umehluko ungaphandle kobubanzi be-± 2, kuyadingeka ukukala nokulungisa umhloli wobulukhuni noma ushintshe kwezinye izindlela zokuhlola kanzima.
Isikali ngasinye sobulukhuni se-Rocwell sinobubanzi besicelo sohlelo lokusebenza, okufanele kukhethwe ngokufanele ngokwemithetho. Isibonelo, lapho ubulukhuni buphakeme kune-HRB100, isikali sakwa-HRC kufanele sisetshenziselwe ukuhlolwa; Lapho ubulukhuni buphansi kune-HRC20, isilinganiselo sakwa-HRB kufanele sisetshenziselwe ukuhlolwa. Ngoba ukunemba kanye nokuzwela kwe-hardness test ampofu lapho uhla lokuhlola ludluliwe, futhi inani le-hardness alilungile, alifanele ukusetshenziswa. Ezinye izindlela zokuhlola izinhlanzi nazo zinamazinga wokulinganisa ahambisanayo. I-block ejwayelekile esetshenziselwa ukulinganisa umhloli wobulukhuni ngeke isetshenziswe ezinhlangothini zombili, ngoba ubulukhuni bohlangothi olujwayelekile kanye nohlangothi lwangemuva alunjalo. Ngokuvamile kuchazwe ukuthi ibhulokhi elijwayelekile livumelekile kungakapheli unyaka owodwa ukusuka ngosuku lokulinganisa.
2. Lapho ungene esikhundleni se-indenter noma i-anvil, naka ukugeza izingxenye zokuxhumana. Ngemuva kokuyishintsha, yihlole kaningana ngesampula yensimbi yobulukhuni obuthile kuze kube yilapho inani lobulukhuni litholwe kabili kulandelana. Inhloso ukwenza i-indenter noma i-anvil kanye nengxenye yokuxhumana yomshini wokuhlola ucindezelwe ngokuqinile futhi ngokuxhumana okuhle, ukuze kungakuthinte ngokunemba kwemiphumela yokuhlolwa.
3. Ngemuva kokuthi umhloli we-hardness uguqulwe, lapho uqala ukukala ubulukhuni, iphuzu lokuqala lokuhlola alisetshenziswa. Ngokwesaba ukuxhumana kabi phakathi kwesampula kanye ne-anvil, inani elilinganisiwe alilungile. Ngemuva kokuthi iphuzu lokuqala lihlolwe futhi umhloli we-hardness usesimweni esijwayelekile sokusebenza, isampula ihlolwe ngokusemthethweni futhi inani lokuqina lokuqina liqoshwa.
4. Uma ucezu lokuhlola luvumela, ngokuvamile khetha izingxenye ezihlukene zokuhlola okungenani amanani aphansi amathathu, thatha inani eliphakathi, bese uthatha inani eliphakathi nendawo njengenani lobulukhuni lesiqeshana sokuhlola.
5 Ucezu lokuhlola eliyindilinga luvame ukubekwa endaweni ebekiwe ye-V ukuze ihlolwe.
6. Ngaphambi kokulayisha, hlola ukuthi ngabe isibambo sokulayisha sibekwe endaweni yokulayisha. Lapho kulayishwa, isenzo kufanele sibe lula futhi sigxile, futhi ungasebenzisi amandla amaningi. Ngemuva kokulayisha, isibambo sokulayisha kufanele sibekwe endaweni yokulayisha, ukuze ivikele ithuluzi ukuthi lingaphansi komthwalo isikhathi eside, libangele ukuguqulwa kwepulasitiki nokuthinta ukunemba kokulinganisa.
Ama-vickers, ubulukhuni be-rockwell
Ubulukhuni: Kuyikhono lezinto ezibonakalayo ukumelana noshintsho lwepulasitiki lendawo, futhi kulinganiswa kakhulu indlela yokufundisa.
QAPHELA: Amanani alukhuni awakwazi ukuqhathaniswa ngqo, futhi angaguqulwa kuphela ngetafula lokuqhathanisa kanzima.
Ngo-2019, uShandong Shancai Test Instrument Co, Ltd. Ujoyine ikomidi le-National Testing Machine elilinganiselisana futhi lihlanganyele ekwakhekeni kwamazinga amabili kazwelonke
1. I-GB / T 230.2-2022: "I-Metallic Materials Rocwell Hurness Test Ingxenye 2: Ukuhlola kanye nokulinganisa kwabahloli bukabulukhuni kanye ne-indenter"
2. I-GB / T 231.2-2022: "Izinto zensimbi iBrinell Harveness Test Ingxenye 2: Ukuhlolwa kanye nokulinganisa kwabahloli bukabulukhuni"
Ngo-2021, uShandong Shancai wabamba iqhaza ekwakheni iphrojekthi yokuhlola kanzima ye-Online Online Hardness yamapayipi e-Aerospace Injini, ifaka isandla embonini ye-aerospace yezwe laseMotherland.
Isikhathi Sokuthumela: Dec-29-2022
