Ungahlola kanjani ukuthi umhloli wokuqina usebenza ngokujwayelekile?
1.Umhloli wokuqina kufanele aqinisekiswe ngokugcwele kanye ngenyanga.
2. Indawo yokufaka yesihloli sokuqina kufanele igcinwe endaweni eyomile, engadlidlizi futhi engagqwali, ukuze kuqinisekiswe ukunemba kwethuluzi phakathi nokulinganisa kanye nokuzinza nokuthembeka kwevelu ngesikhathi sokuhlolwa.
3. Lapho umhloli wokuqina usebenza, akuvunyelwe ukuthinta ngokuqondile ubuso bensimbi ukuze kulinganiswe ukuvimbela ukunemba kokulinganisa okungalungile noma ukulimaza i-indenter yekhoni yedayimane ekhanda lomhloli wokuqina.
4. Ngesikhathi sokusetshenziswa kwe-indenter yedayimane, kuyadingeka ukuhlola ukuqedwa kwe-indenter kanye ngonyaka.Ngemva kokulinganisa ngakunye, i-indenter kufanele ibuyiselwe ebhokisini elikhethekile ukuze igcinwe.
Izinyathelo zokuvikela umhloli wokuqina:
Ngaphezu kwezinyathelo ezikhethekile zokuphepha lapho usebenzisa abahloli bokuqina abahlukahlukene, kunezinkinga ezithile ezijwayelekile okufanele zibhekwe, ezibhalwe ngezansi:
1. Umhloli wokuqina ngokwawo uzoveza izinhlobo ezimbili zamaphutha: enye iyiphutha elibangelwa ukuguquguquka nokunyakaza kwezingxenye zayo;enye iphutha elibangelwe ipharamitha yobulukhuni eyeqa izinga elishiwo.Ngephutha lesibili, isihloli sokuqina sidinga ukulinganiswa ngebhulokhi evamile ngaphambi kokulinganisa.Ngemiphumela yokulinganisa yesihloli sokuqina kwe-Rockwell, umehluko ufanelekile phakathi kuka-±1.Inani lokulungisa linganikezwa yenani elizinzile elinomehluko ongaphakathi kuka-±2.Uma umehluko ungaphandle kwebanga elingu-±2, kuyadingeka ukulinganisa nokulungisa isihloli sokuqina noma ushintshele kwezinye izindlela zokuhlola ubulukhuni.
Isikali ngasinye sokuqina kwe-Rockwell sine-de facto scope yesicelo, okufanele sikhethwe ngendlela efanele ngokuvumelana nemithethonqubo.Isibonelo, lapho ubulukhuni bungaphezu kwe-HRB100, isikali se-HRC kufanele sisetshenziselwe ukuhlola;lapho ubulukhuni bungaphansi kwe-HRC20, isikali se-HRB kufanele sisetshenziselwe ukuhlolwa.Ngenxa yokuthi ukunemba nokuzwela komhloli wokuqina akukuhle uma uhla lokuhlola lweqiwe, futhi inani lokuqina alilungile, alifanele ukusetshenziswa.Ezinye izindlela zokuhlola ubulukhuni nazo zinamazinga ahambisanayo okulinganisa.Ibhulokhi evamile esetshenziselwa ukulinganisa umhloli wokuqina ayikwazi ukusetshenziswa ezinhlangothini zombili, ngoba ukuqina kohlangothi olujwayelekile kanye nohlangothi olungemuva akufani ngempela.Ngokuvamile kushiwo ukuthi ibhulokhi elijwayelekile lisebenza phakathi nonyaka owodwa kusukela ngedethi yokulinganisa.
2. Uma ushintsha i-indenter noma i-anvil, naka ukuhlanza izingxenye zokuxhumana.Ngemva kokuyishintsha, ihlole izikhathi eziningana ngesampula yensimbi yobulukhuni obuthile kuze kube yilapho inani lokuqina elitholwe kabili ngokulandelana lifana.Inhloso ukwenza i-indenter noma i-anvil kanye nengxenye yokuxhumana yomshini wokuhlola icindezelwe ngokuqinile futhi ixhumeke kahle, ukuze kungathinti ukunemba kwemiphumela yokuhlolwa.
3. Ngemva kokulungiswa komhloli wokuqina, lapho uqala ukukala ubulukhuni, iphuzu lokuqala lokuhlola alisetshenziswa.Ngenxa yokwesaba ukuthintana okungalungile phakathi kwesampula ne-anvil, inani elilinganisiwe alinembile.Ngemva kokuba iphuzu lokuqala selihloliwe futhi umhloli wokuqina usesimweni esivamile sendlela yokusebenza, isampula ihlolwa ngokusemthethweni futhi inani lokuqina elilinganiselwe liyarekhodwa.
4. Uma ucezu lokuhlola luvumela, ngokuvamile khetha izingxenye ezihlukene ukuze uhlole okungenani amanani amathathu obulukhuni, uthathe inani elimaphakathi, futhi uthathe inani elimaphakathi njengenani lokuqina locezu lokuhlola.
5. Izingcezu zokuhlola ezinobunjwa obuyinkimbinkimbi, amaphedi anomumo ohambisanayo kufanele asetshenziswe, futhi angahlolwa ngemva kokulungiswa.Ucezu oluyindilinga lokuhlola ngokuvamile lufakwa emseleni omise okwe-V ukuze luhlolwe.
6. Ngaphambi kokulayisha, hlola ukuthi isibambo sokulayisha sibekwe endaweni yokulayisha.Lapho ulayisha, isenzo kufanele sibe lula futhi sizinze, futhi ungasebenzisi amandla amaningi.Ngemuva kokulayisha, isibambo sokulayisha kufanele sibekwe endaweni yokuthulula, ukuze kuvinjwe ithuluzi ukuthi lingabi ngaphansi komthwalo isikhathi eside, kubangele ukuguqulwa kwepulasitiki futhi kuthinte ukunemba kokulinganisa.
Vickers, ukuqina kwe-Rockwell
Ukuqina: Kuyikhono lempahla ukumelana nokuguqulwa kwepulasitiki yendawo, futhi ikalwa kakhulu ngendlela yokuhlehlisa.
Qaphela: Amanani okuqina awakwazi ukuqhathaniswa ngokuqondile namanye, futhi angaguqulwa kuphela ngethebula lokuqhathanisa ubulukhuni.
Ngo-2019, iShandong Shancai Testing Instrument Co., Ltd. yajoyina iKomidi Likazwelonke Lokuhlola Umshini Wokulinganisa Umshini futhi yabamba iqhaza ekwakhiweni kwamazinga amabili kazwelonke.
1. GB/T 230.2-2022:"Izinto Zensimbi Zokuhlola Ukuqina Kwe-Rockwell Ingxenye 2: Ukuhlolwa Nokulinganisa Izihloli Zokuqina Nezikhombi"
2. GB/T 231.2-2022:"Ukuhlolwa kokuqina kwe-Metallic Brinell Ingxenye 2: Ukuhlolwa Nokulinganiswa Kwezihloli Zokuqina"
Ngo-2021, u-Shandong Shancai wabamba iqhaza ekwakhiweni kwephrojekthi yokuhlola ubulukhuni be-inthanethi ezenzakalelayo yamapayipi enjini ye-aerospace, okunomthelela embonini ye-aerospace ye-motherland.
Isikhathi sokuthumela: Dec-29-2022
