Ukuqinisekisa ukhuseleko kunye nokuthembeka, kubaluleke kakhulu ukukhetha ibakala elifanelekileyo kunye nofakelo oluchanekileyo ukuqinisekisa ukhuseleko lwakho kumatshini.
Iimpawu eziphambili zeebholiti kunye nezikrini ezenziwe nge-intshi kunye nentsimbi ye-metric ziboniswa kwitheyibhile ye-1 (jonga ngezantsi).
Iibholithi zentsimbi ezithambileyo (ezikwabizwa ngokuba yibakala lesi-2 okanye i-metric 5.8) zinamandla okuqina amalunga nama-385 eMPa. Amandla obungqina ngumthwalo wokuba i-fastener inokumelana nayo ngaphandle kokuguqulwa kwesigxina (umonakalo ongenakuguqulwa). Amandla aqinisekisiweyo eklasi ye-5 bolts yi-600 MPa, kwaye amandla aqinisekisiweyo eklasi ye-8 bolts yi-840 MPa. Ngoko ke, ngcono iklasi yebholiti, umthwalo omkhulu unokumelana nayo, ngelixa uhlala u-elastic. Xa umthwalo ususiwe, iibholiti ezikumgangatho ophezulu zibuyela kubude bawo bokuqala kwaye zihlala zi-elastic, ngelixa iibholiti ezisemgangathweni ziyakwazi ukwenza iplastiki kwaye zolule ngokusisigxina.
Uninzi lweenjineli zisebenzisa i-factor ye-60% ukubala amandla okucheba ebholithi, ngoko ke lo ngumgaqo oluncedo wobhontsi wokukhetha ubungakanani obuchanekileyo kunye neklasi yamandla okucheba. Ndicinga ukuba kulungile ukutsho ukuba izithuthi ezininzi ezitshintshiweyo zihlengahlengiswa ngokwemiqathango yobukhulu be-fastener, kwaye ixesha elininzi alikhuselekanga, kodwa linokwenza izinto zibukeke njengelori kwezinye iimeko. Izibophelelo ezincinci zinokwenza umatshini ube bukhali, kodwa njengoko omnye wabahlohli bam watshoyo, akukho mfama onokuthenga itrektara ukuba yakhiwe ngokomlinganiselo wayo kuba ikhangeleka ibuthathaka kakhulu ukuba inganyuswa. Nangona kunjalo, kwiimoto zanamhlanje ngoku sibona ukusetyenziswa kwezinto ezincinci zokukhwela - ngoko ke kuxhomekeke kuwe! Uninzi lwezilungisi zisebenzisa iziqhoboshi zentloko zesokethi ezikumgangatho webanga lesi-8.
Nje ukuba ubungakanani obufanelekileyo bokuqhoboshela bukhethiwe, ukhetho lwebakala kufuneka lusekelwe kwibhalansi phakathi kokuqina kokuqina, ukuqina kunye nokuqina. Amandla e-tensile ngamandla okugqibela ezinto eziphathekayo ezenziwe ngazo i-fastener. I-Ductility liqondo apho isibophelelo esolulelwa phambi kokuba sisilele. Amandla abhekisela ekuchaseni ukukhathala kunye nokukwazi ukumelana nemithwalo ye-cyclic.
Ke, ukwazi ezi nyaniso malunga ne-metallurgy yomzimba, kuba lula ukukhetha ibakala elifanelekileyo.
Kwibhanti yebhanti, sifuna iqhosha elithambileyo elinokolula kakhulu phambi kokuba lisilele, ngelo xesha ukothuka kuphelile kwaye umkhweli uyasindiswa. Ngaloo ndlela, i-anchorages yebhanti yesihlalo zikwiklasi ethambileyo kwaye akufanele itshintshwe ngamabhonti aphezulu afikelela kwimithwalo ephezulu kwaye ngokukhawuleza aphumelele. Ngokufanayo, kwii-fenders, i-footpegs, i-firewall mounts, kunye nezinye izinto ezingaphantsi koxinzelelo ezingabalulekanga, udidi lwesi-2 okanye izibophelelo ezingachazwanga zingasetyenziswa.
Ndifumana iziqhoboshi zeklasi yesi-5 (i-8.8 metric) ukuze zilingane nayo yonke enye into kwimoto elungisiweyo. Banamandla okuqina eklasi ye-8 kodwa akukho brittleness. Ekunqunyanyisweni baya kumelana nemithwalo ye-cyclic, kwezinye izicelo baya kunika amandla okucheba kunye ne-clamp ngaphandle kokunciphisa ngenxa ye-ductility okanye ngaphezulu kokuqina.
Ukusetyenziswa kwe-injini ebalulekileyo njengeebholiti zentloko ye-cylinder kunye nezixhobo zokwahlulahlula, iibholiti zodidi lwesi-8 ezinetorque efanelekileyo yokulayishwa kwangaphambili kwamalungu okubamba kunye nokolulwa kwebholithi okuncinci lolona khetho lulungileyo.
Amantongomane ahlala enziwe kwintsimbi ethambileyo okanye ethambileyo, efana neklasi ye-2 bolts. Okumangalisa njengoko kubonakala ngathi, ubude kunye noyilo lwentambo ye-nut inqunywe ukwenzela ukuba i-bolt iphumelele amandla apheleleyo phantsi komthwalo. Oku kuthetha ukuba ukuba uqinisa ngokugqithisileyo isibophelelo, uya kuhlala ususa i-nut kuqala, ushiye ibholiti yomelele.
Xa uqinisa i-fastener kwi-specification, usebenzisa ukulayisha kwangaphambili okuchasana nomthwalo kwicala elichaseneyo kwaye uphinde ulayishe i-fastener ukwenzela ukuba umthwalo owongezelelweyo ungasoluli i-fastener kwaye ubangele ukuba ukhululeke.
Ukuqiniswa ngokufanelekileyo kwazo zonke izibophelelo kwimoto kubaluleke kakhulu, kodwa kwiindawo ezingabalulekanga kakhulu, amava kunye neentsimbi eziqhelekileyo zingasetyenziselwa oku. Izitshixo ziyilelwe ubungakanani obuthile bokuqhobosha; inkulu i-fastener, ixesha elide i-wrench iya kuba inika i-torque echanekileyo ukusuka kumandla omntu "oqhelekileyo". Nonke nikhumbula ukuba umfundi uhlala eqhekeza izikrufu zekota-intshi ade azi ukuba izikrufu ezincinci zifuna ukukhululwa.
Amandongomane enayiloni axhaphake kakhulu kuyilo lwetram kangangokuba athathe indawo enkulu yakudala yakudala. Basebenza ngokukodwa kwizicelo apho ukungcangcazela okanye ukujikeleza kuyimiba ebalulekileyo kwaye nalapho ukugcinwa kunzima. Qinisekisa ukuba ubuncinci umsonto omnye uhamba nge nut ukwenzela ukudibana okufanelekileyo. Musa ukusebenzisa iplastiki yenayiloni ukuba ubushushu buya kunyibilikisa iziqhoboshi zenayiloni, kwaye musa ukuzisebenzisa ngokugqithisileyo emva kokuyikhulula ngokuphindwe kabini.
Ixesha lokuposa: Aug-03-2023