Ukunyangwa kobushushu be-Fastener, ukongeza kuhlolo lomgangatho jikelele kunye nolawulo, kukho ukuhlolwa komgangatho okhethekileyo kunye nolawulo, ngoku sithi unyango lobushushu lwamanqaku amaninzi olawulo.
01 I-Decarburization kunye ne-carburization
Ukumisela kwangexesha ulawulo lwekhabhoni yomlilo, ungasebenzisa ukubonwa kwentlantsi kunye novavanyo lobulukhuni beRockwell ukuze udityaniswe necarburization kumgwebo wokuqala.
Uvavanyo lwentlantsi.
Ngaba iindawo ezicinyiweyo, kwi-grinder evela kumphezulu kunye nangaphakathi ngokucokisekileyo ukugaya umgwebo wentlantsi kunye nentliziyo yesixa sekhabhoni iyahambelana. Kodwa oku kufuna ukuba umqhubi abe nobuchule obunobuchule kunye neentlantsi zokuchonga isakhono.
Uvavanyo lobulukhuni beRockwell.
Iqhutywa kwicala lebholithi ene-hexagonal. Kuqala iindawo eziqinileyo zenqwelomoya enamacala amathandathu kunye nephepha lesanti elipolishwe ngobunono, lilinganisa ubulukhuni bokuqala beRockwell. Emva koko lo mphezulu kwi sander ukuba usila kude malunga 0.5mm, uze ulinganise ubulukhuni Rockwell.
Ukuba ixabiso ubulukhuni amaxesha amabini ngokusisiseko efanayo, ukuba akukho decarburization, okanye carburization.
Xa ubulukhuni bangaphambili bungaphantsi kunobulukhuni bamva, oko kuthetha ukuba umphezulu we-decarburized.
Ubunzima bangaphambili buphezulu kunobulukhuni bamva, ukuba umphezulu we-carburization.
Ngokubanzi, umahluko wobulukhuni obubini be-5HRC okanye ngaphantsi, kunye nemethodi ye-metallographic okanye indlela ye-microhardness, iinxalenye ze-decarburization okanye i-carburization ngokusisiseko ngaphakathi kwendawo yokufaneleka.
02 Ukuqina kunye namandla
Kuvavanyo lwesiqhoboshi esinentambo, ayinakusekwa ngokulula kwixabiso lobulukhuni bencwadi echaphazelekayo, iguqulelwe kwixabiso lamandla. Kukho into yokuqina phakathi.
Ngokuqhelekileyo, ubunzima bezinto eziphathekayo bulungile, ubunzima becandelo elinqamlezayo lecandelo le-screw lingasasazwa ngokufanayo, nje ngokuba ubunzima bufanelekile, amandla kunye nokuqinisekisa ukuba uxinzelelo luyakwazi ukuhlangabezana neemfuno;
Xa ubunzima bezinto eziphathekayo buhlwempuzekileyo, nangona ngokuhambelana nenxalenye emiselweyo yetshekhi, ubunzima bufanelekile, kodwa amandla kunye noxinzelelo lwesiqinisekiso kaninzi aluhambisani neemfuno. Ngokukodwa xa ubunzima bomphezulu buthandeka kumda ophantsi, ukwenzela ukulawula amandla kunye noxinzelelo lwesiqinisekiso kuluhlu olufanelekileyo, luhlala luphucula ixabiso elisezantsi lobunzima.
03Uvavanyo lokuhlaziya
Retempering uvavanyo ungajonga ukucima ubulukhuni akwanelanga, kunye nobushushu eliphantsi kakhulu ukufutha ukuba ngokulambisa ukufikelela kuluhlu lobulukhuni oluchaziweyo yokusebenza engachanekanga, ukuze kuqinisekiswe ukuba iimpawu mechanical olubanzi lwamalungu.
Ngokukodwa i-carbon martensitic ephantsi yokuvelisa izibophelelo ezifakwe kwi-threaded, ukushisa okuphantsi kobushushu, nangona ezinye iimpawu zoomatshini zinokuhlangabezana neemfuno, kodwa umlinganiselo woxinzelelo oluqinisekisiweyo, ukuguquguquka okushiyekileyo kukhulu kakhulu, kukhulu kakhulu kune-12.5um, kwaye kwezinye iimeko zokusetyenziswa. iya kuba yinto eyenzeka ngesiquphe yokwaphuka, kwezinye iimoto kunye nokwakhiwa kweebholithi, kuvele kwisenzeko sokuqhekeka ngequbuliso.
Xa iqondo lobushushu lisezantsi ubushushu, kunokunciphisa isenzeko ngasentla, kodwa carbon ephantsi martensitic steel yokuvelisa 10.9 grade bolts, kufuneka balumke ngokukodwa.
04 Ukuhlolwa kwe-hydrogen embrittlement
Ukuchaphazeleka kwi-hydrogen embrittlement kwandisa ngamandla e-fastener. Iziqhoboshi ezinemisonto zangaphandle zebanga le-10.9 nangaphezulu, izikrufu eziqinileyo ezizingqinileyo, izikrufu ezidityanisiweyo ezineewasha zentsimbi eziqinileyo, njl.
Unyango lwe-Dehydrogenation luhlala kwi-oveni okanye kwiziko lobushushu, libambe kwi-190 ~ 230.℃ngaphezu kwe-4h, ukuze i-hydrogen diffusion iphume.
"Intsimbi isafuna ubulukhuni bayo!" Nokuba imeko yemarike itshintsha njani na, ukucokisa inkqubo yokwenziwa kwemveliso ikwayenye yeendlela ezisebenzayo zokuxhathisa imingcipheko.
Kwinkqubo yonyango lwe-fastener yokushisa, ngokungathandabuzekiyo kubaluleke kakhulu ukwenza umsebenzi omhle kwiindawo zokulawula eziphambili, ekwayenye yezinto ezinokuthi zonke ishishini lonyango lobushushu lifanele lenze kakuhle.
Ixesha lokuposa: Jan-17-2024