Ukuqinisekisa ukuphepha nokuthembeka, kubaluleke kakhulu ukukhetha ibanga elifanele kanye nokufakwa okulungile ukuze uqinisekise ukuphepha kwakho emshinini.
Izinhlobo eziyinhloko zamabhawodi nezikulufu ezenziwe nge-intshi nensimbi ye-metric ziboniswa kuthebula 1 (bheka ngezansi).
Amabhawodi ensimbi amaphakathi (abuye aziwe njengebanga lesi-2 noma i-metric 5.8) anamandla aqinile angaba ngu-385 MPa. Amandla okufakazela umthwalo i-fastener engamelana nawo ngaphandle kwanoma yikuphi ukuguqulwa okuhlala njalo (umonakalo ongenakulungiseka). Amandla aqinisekisiwe ekilasi lesi-5 amabholithi angama-600 MPa, futhi amandla aqinisekisiwe ekilasi lesi-8 amabholithi angama-840 MPa. Ngakho-ke, ikilasi lebhawodi lingcono, umthwalo omkhulu ongamelana nawo, ngenkathi uhlala unwebeka. Lapho umthwalo ususiwe, amabhawodi ekhwalithi ephezulu abuyela kubude bawo bangempela futhi aqhubeke enwebeka, kuyilapho amabhawudo ekhwalithi engeyinhle akwazi ukwenza ipulasitiki futhi anwebe unomphela.
Onjiniyela abaningi basebenzisa isici esingu-60% ukubala amandla okugunda ebhawodi, ngakho-ke lokhu kuwumthetho owusizo wesithupha wokukhetha usayizi olungile kanye nesigaba samandla sokugunda. Ngicabanga ukuthi kulungile ukusho ukuthi izimoto eziningi ezishintshiwe ziklanywa kabusha ngokosayizi we-fastener, futhi isikhathi esiningi aziphephile, kodwa zingenza izinto zibukeke njengeloli kwezinye izimo. Izibophelelo ezincane zingenza umshini ube bukhali, kodwa njengoba omunye wothisha bami eke washo, akekho umlimi ongathenga ugandaganda uma wakhiwe wafinyelela umkhawulo wawo ngoba ubukeka untekenteke kakhulu ukuthi ungawuphakamisa. Kodwa-ke, ezimotweni zesimanje manje sesibona ukusetshenziswa kwama-mounts amancane - ngakho-ke kukuwe! Izilungisi eziningi zisebenzisa izixhumi zesokhethi zekhanda eziyikhwalithi yebanga lesi-8.
Uma usayizi we-fastener ofanelekile usukhethiwe, ukukhethwa kwebanga kufanele kusekelwe ebhalansi phakathi kwamandla aqinile, i-ductility kanye nokuqina. Amandla aqinile angamandla okugcina ento eyenziwe ngayo isibambiso. I-Ductility yizinga lapho isibophelelo esinwetshwa khona ngaphambi kokuthi sihluleke. Amandla asho ukumelana nokukhathala kanye nekhono lokumelana nemithwalo yama-cyclic.
Ngakho-ke, ukwazi la maqiniso mayelana nokusansimbi ngokomzimba, kuba lula ukukhetha ibanga elifanele lebhawodi.
Ngebhawudi yebhande lesihlalo, sidinga ibhande elithambile elinganwebeka kakhulu ngaphambi kokuthi lihluleke, lapho ukushaqeka kuphelile futhi umgibeli uyasinda. Kanjalo, ama-anchorage ebhande lesihlalo asesigabeni esithambile futhi akufanele ashintshwe amabhawodi anamandla afinyelela imithwalo ephezulu futhi ahluleke kungazelelwe. Ngokufanayo, kuma-fenders, footpegs, firewall mounts, nezinye izinhlelo zokusebenza ezingagcizelele kangako ezingabalulekile, Ikilasi 2 noma izixhumi ezingafakwanga ohlwini zingasetshenziswa.
Ngithola izinsimbi zeklasi 5 (8.8 metric) ukuthi zilingane cishe nayo yonke enye into emotweni eshintshiwe. Banamandla e-class 8 bolt tensile kodwa abanawo ama-brittleness. Ekumisweni bazomelana nemithwalo ye-cyclic, kwezinye izinhlelo zokusebenza bazohlinzeka ngamandla okugunda kanye ne-clamp ngaphandle kokuncipha ngenxa ye-ductility noma ukuqina ngokweqile.
Ezisetshenziswa zenjini ezibucayi njengamabhawodi ekhanda lamasilinda namakhithi okuhlukanisa, amabhawodi ekilasi lesi-8 anetorque efanele ukulayisha kuqala amajoyinti okubamba anokwelula kwebhawodi okuncane ukukhetha okungcono kakhulu.
Amantongomane avame ukwenziwa ngensimbi ethambile noma ethambile, efana namabhawodi ekilasi 2. Nakuba kungase kubonakale kuyinqaba, ubude nomklamo wentambo we-nati kunqunywa ukuze ibhawudi lifinyelele amandla aphelele ngaphansi komthwalo. Lokhu kusho ukuthi uma uqinisa kakhulu into yokubopha, ngokuvamile uzokhipha inati kuqala, ushiye ibhawodi liphelele.
Uma uqinisa i-fastener ekucacisweni, usebenzisa ukulayisha kuqala okuphikisana nomthwalo ngakolunye uhlangothi futhi uphinde ulayishe isixhumi ukuze umthwalo owengeziwe unganwebi isibopheli futhi ubangele ukuthi sikhululeke.
Ukuqiniswa okufanele kwazo zonke izinsimbi emotweni kubaluleke kakhulu, kodwa ezindaweni ezingabalulekile kakhulu, isipiliyoni kanye nama-wrenches ajwayelekile angasetshenziswa kulokhu. Ama-Wrenches aklanyelwe amasayizi athile wokubopha; uma i-fastener inkulu, i-wrench izoba yinde ukunikeza i-torque efanele evela emandleni omuntu "ajwayelekile". Nonke niyakhumbula ukuthi umfundi uhlale ephula izikulufi zekota-inch aze azi ukuthi izikulufo ezincane zidinga ukuxegiswa.
Amantongomane enayiloni avame kakhulu emiklamo ye-tram kangangokuthi athathe indawo enkulu yama-spring washers endala. Asebenza kahle kakhulu ezinhlelweni lapho ukudlidliza noma ukuzungezisa kuyizici ezibalulekile nalapho ukugcinwa kunzima khona. Qiniseka ukuthi okungenani uchungechunge olulodwa ludlula kumantongomane ukuze kuhlanganyele okufanele. Ungasebenzisi ipulasitiki enayiloni uma ukushisa kuzoncibilikisa izibophelelo zenayiloni, futhi ungakusebenzisi ngokweqile ngemva kokuyikhulula izikhathi ezingaphezu kwezimbili.
Isikhathi sokuthumela: Aug-03-2023