Sitinganene kuti ulusi wamba ndi remed dzenje ulusi, koma bawuti wamba ndi reamed bowo bawuti, chifukwa ulusi mbali ziwiri ndi yemweyo, kusiyana ndi kuti mbali ya ndodo popanda ulusi.Chifukwa gawo la ulusi ndilofanana, mphamvu ya axial ndi yofanana.Pali kusiyana pakati pa ndodo yowamba mbali ya bawuti wamba ndi dzenje, ndipo mphamvu yodutsa ndi malo a kukangana pamalo olumikizirana pomwe bawuti imamitsidwa (ndithudi, ngati mukuganiza zodula, mphamvu yodutsa. ndiye mphamvu yakumeta ubweya wa bawuti).Kukwanira kwa bowolo la remed ndi dzenje ndikulolera, ndipo mphamvu yodutsa ndi mphamvu yakumeta ubweya wa bolt remed.
Chenjerani
bm = 1d double stud nthawi zambiri imagwiritsidwa ntchito polumikiza mbali ziwiri zolumikizidwa ndi zitsulo;GB/T897-1988 “Double-ended stud bm=1d” (bm imatanthawuza kumapeto kwa bowo la screw lotchedwa screw end, kutalika kwa bm kumayenderana ndi zomwe gawolo liyenera kupukutidwa: bm = 1d yachitsulo ndi bronze, pamene d amatanthauza kukula kwa kunja kwa ulusi, kutanthauza kukula kwakukulu.)
bm=1.25d ndi bm=1.5d double stud nthawi zambiri amagwiritsidwa ntchito polumikiza cholumikizira chachitsulo ndi cholumikizira chitsulo;GB898-1988 “Double stud bm= 1.25d”, GB899-1988 “Double stud bm=1.5d”.
bm = 2d double stud nthawi zambiri imagwiritsidwa ntchito polumikiza cholumikizira cha aluminiyamu ndi cholumikizira chitsulo.Cholumikizira chakale chimaperekedwa ndi dzenje lamkati la ulusi, ndipo chomalizacho chimakhala ndi dzenje.GB/T900-1988 “Double stud bm =2d”.
Ulusi womwe uli pa malekezero onse a nsonga yofanana kutalika kwawiri uyenera kugwirizanitsidwa ndi mtedza ndi zochapira pazigawo ziwiri zolumikizidwa ndi mabowo.GB/T901-1988 “Equal length double stud Class B”, GB/T953-1988 “Equal kutalika kwachiwiri kwa kalasi C".Mapeto amodzi a chowotcherera chowotcherera amawotcherera pamwamba pa gawo lolumikizidwa, ndipo kumapeto kwina (mapeto a ulusi) amadutsa gawo lolumikizidwa ndi dzenje lodutsa, ndiyeno chochapiracho chimayikidwa, ndipo mtedzawo umaphwanyidwa, motero. kuti mbali ziwiri zolumikizidwa zimalumikizidwa pamodzi.GB/T902.1 “Welding stud for manual welding”, GB/T902.2 “Welding stud for arc stud welding”, GB/T902.3 “Welding stud for energy storage welding”, GB/T902.4 “Welding stud for kuwotcherera kwa nthawi yochepa ".
Chenjerani:
Ulusi womwe umagwiritsidwa ntchito pa ulusi wapawiri (GB/T897-900) nthawi zambiri umakhala ulusi wamba wamba, ndipo ulusi wabwino wamba kapena ulusi wokwanira wosinthira ungagwiritsidwenso ntchito molingana ndi kufunikira (malinga ndi GB1167/T-1996 “ulusi wokwanira wosinthira. ”).Zofanana kutalika kwapawiri mutu stud -B kalasi, angagwiritsidwe ntchito malinga ndi need30Cr, 40Cr, 30CrMnSi, 35CrMoA40MnA kapena 40B zinthu kupanga, ntchito yake molingana ndi mgwirizano pakati kopereka ndi zofuna maphwando.Welding stud zinthu mankhwala zikuchokera, malinga GB/T3098 .1-2010, koma kuchuluka kwake kwa carbon kuyenera kukhala kwakukulu kuposa 0.20%, ndipo sikudzapangidwa ndi chitsulo chodula chaulere.
6. Kuuma: Kukhoza kwa zinthu kukana zinthu zolimba za m'deralo zopanikizidwa pamwamba pake ndi chizindikiro cha ntchito kuti muyese kuchuluka kwa kufewa ndi kuuma kwa zitsulo.Kuyesa kuuma kwa njira zoyesera (Brinell, Rockwell, Vickers)Zofunikira pokonzekera zitsanzo: Mapeto awiri a chitsanzo ndi ofanana, pamwamba pake ndi athyathyathya, ndipo palibe mafuta kapena okusayidi omwe amaloledwa.
Malo oyesera 10 ~ 35 °
Pozindikira kuuma kwa bawuti, palibe kutentha kwa ma bolts, kumangofunika kuchita kuuma kwapamwamba, mkati mwa ange oyenerera pamzere.Ngati ndi kutentha mankhwala bawuti, m`pofunika kudula kuuma pamwamba pa awiri kumapeto.Malo oyesera akuwonetsedwa pachithunzichi.Mayeso olimba ali pa 1/2R pamtunda, ndipo kuuma kumakumana ndi muyezo.
Bolt kuuma ali pamwamba ndi pachimake, pamwamba amatanthauza ntchito Vickers kapena pamwamba Rockwell kuuma pambuyo kuchotsa pamwamba dzimbiri, etc. pachimake ayenera kukhala kuchotsa mutu 1/2 m'mimba mwake mbali yaitali pamwamba ndi pachimake. 1/2 malo kusewera kuuma, kusiyana pakati pa kuuma awiri sangathe upambana 30HV, pamwamba ndi apamwamba kuposa 30HV kusonyeza kuti pamwamba carburizing, saloledwa, Ngati pamwamba ndi otsika kuposa 30HV, zikutanthauza kuti pamwamba ndi decarbonized , ndipo sikuloledwa.
Mtedza wamtundu wa 8 uyenera kutenthedwa, koma palibe kutentha, mtedza wamba wa 8-grade nthawi zambiri umakhala wopangidwa ndi zitsulo 35, kuyesa kuuma kumatchulidwanso, pamwamba sikufunika, wopanga kutentha. amayesa kuuma pambuyo pochiza kutentha, mtedza wa metric nthawi zambiri umathyoledwa kuchokera pakati kuyesa kuuma kwa mtima wake, mtedza wa inchi nthawi zambiri umathyoledwa pa nkhope imodzi (ndiko kuti, kudula mipeni iwiri pamtunda), kuyesa kuuma. chapakati pa gawo limodzi la pamwamba, ndi mtedza ang'onoang'ono ambiri amavala pa gawo 0.2 ~ Yesani kuuma pambuyo 0.3mm.4.6 ~ 6.8 mabawuti safuna kutentha kutentha;Zopangidwa ndi mtedza wambiri wamtundu wa 2.
Muyezo wadziko lonse wa GB3098.1 ndi mulingo wadziko lonse wa GB3098.3 umanena kuti kuuma kwa mkangano kumayesedwa pa 1/2 radius ya gawo la mtanda wa gawolo.Pakakhala mkangano uliwonse pakuvomerezedwa, kuuma kwa Vickers kudzagwiritsidwa ntchito ngati mayeso arbitration.Osachepera mawerengedwe a 3 ayenera kutengedwa pachitsanzo chilichonse.
Malo oyeserera arbitration: Mukapereka lipoti la mayeso pakati pa wogula ndi wogulitsa pazolinga zotsutsana, kuyezetsa kuuma kumayesedwa pakatikati (r/2) pa radius ya malo odulidwa mita imodzi kutali ndi kumapeto kwa bolt kapena stud.Ngati kukula kwazinthu kukuloleza, tengani zowerengera 4 kumapeto kwa bawuti kapena stud iyi.Zogulitsa zazing'ono zazing'ono zimathanso kuyesedwa pogwiritsa ntchito malo ofananirako a bolt mutu terminal yogwirizana ndi malo odulidwa pamwambapa.Pakuyesa kwanthawi zonse, kuuma kwa mabawuti, zomangira kapena zomata zimatha kuyesedwa pamutu, mchira kapena shank pambuyo pochotsa bwino pamwamba.
Pazigawo zonse, ngati mtengo woyesera ukuposa malire apamwamba a kuuma, chitsanzocho chiyenera kuchotsedwa pa malo a m'mimba mwake kuchokera kumapeto kwa chitsanzocho, ndi pakati pa chitsanzo ndi njira ya ulusi pakatikati pa chigawocho. mayeso, retest mtengo sayenera kupitirira malire chapamwamba kuuma, ngati mukukayika, Vickers kuuma (HV) ayenera kuvomerezedwa ngati chigamulo.Mayeso a kuuma kwa pamwamba amatha kupezeka kumapeto kwa mankhwala kapena m'mphepete mwa hexagon, ndipo malo oyesera ayenera kukhala otsika pang'ono kapena opukutidwa kuti atsimikizire kubwereza kwa mayesowo komanso momwe zinthu zilili.HV0.3 imagwiritsidwa ntchito poyesa kuyesa kulimba kwa pamwamba.Kuuma kwapamwamba komwe kumayesedwa ndi HV0.3 kudzafananizidwa ndi mtengo wamtengo wapatali woyezetsa womwe umayesedwanso ndi HVo.3, ndipo kusiyana kwake sikuyenera kupitirira 30 HV kuuma mfundo.Kulimba kwapamtunda kuposa kuuma kwapakati 30 HV kuuma kwa mfundo kumasonyeza kuti chitsanzocho chapangidwa ndi carburized.Pazinthu zomwe zili ndi giredi 8.8 mpaka 12.9, kusiyana pakati pa kulimba kwapamtunda ndi kulimba kwapakati kungagwiritsidwe ntchito kudziwa ngati mankhwalawo ali ndi carburizing pamwamba.Kuuma kwa mankhwalawa sikukhudzana mwachindunji ndi mphamvu yamphamvu yamalingaliro.Kutsimikiza kwa mtengo wovuta kwambiri sikudalira kulingalira kwa malire amphamvu.
Zindikirani: Dziwani kuti kusiyanasiyana kwa kuuma kwa mtengo kumayamba chifukwa cha kutentha kwa carburizing kapena kuzizira.
Nthawi yotumiza: Sep-23-2023