Bolt ndi wamba makina mbali, nthawi zambiri ntchito m'malo ambiri, ndi mutu ndi wononga mbali ziwiri za gulu fasteners, ayenera kugwiritsidwa ntchito molumikizana ndi mtedza, makamaka ntchito kulumikiza kugwirizana magawo awiri ndi kudzera mabowo. Mwina simukumvetsetsa zamtundu wa bawuti, nkhaniyi ikufotokozerani za bawuti, chidziwitso chokhudzana ndi kalasi, kuti anthu ambiri aphunzire kuzindikira zing'onozing'ono za bawuti.
Kodi magiredi ndi zida za ma bolts amatanthauza chiyani?
Bolt giredi imatanthawuza bawuti ndi 4.8grade, 8.8 giredi, 10.9 giredi ndi zina bawuti giredi.
Zakuthupi amatanthauza bawuti amapangidwa ndi zinthu ziti, monga Q235, 35K, 40Cr, 45 # zitsulo, 35CrMo zitsulo, 304 zitsulo zosapanga dzimbiri ndi 316 zitsulo zosapanga dzimbiri ndi zina zotero.
Bawuti kalasi ndi zakuthupi ndi ubale wina, zitsulo wofatsa akhoza kutulutsa mabawuti otsika mphamvu kalasi, sing'anga mpweya zitsulo akhoza kupanga sing'anga mphamvu kalasi mabawuti, mkulu mpweya zitsulo, aloyi zitsulo akhoza kupanga mabawuti mkulu mphamvu kalasi. Gulu lina la bawuti limatanthawuza zomwe zimapangidwira komanso makina amakina, komanso kudziwa zomwe zili.
Nawu mndandanda wamagiredi wamba wa mabawuti omwe angakhale zinthu. 4.8 mlingo akhoza kukhala Q235, Q195 ndi zinthu zina wofatsa zitsulo. 5.8 mlingo Q235 pamwamba zipangizo zonse kungakhale, safuna kutentha mankhwala. 8.8 mlingo ulusi awiri a 16MM kapena zochepa, 35 # kutentha kutentha mankhwala, 16mm kapena kuposa, 45 # ndi otsika mpweya aloyi zitsulo tempering. 10.9 mlingo wa sing'anga-mpweya aloyi zitsulo tempering Kutentha mankhwala 35Crmo 40Cr ndi zina zotero.
Kodi mabawuti amphamvu kwambiri angasiyanitsidwe ndi mabawuti wamba potengera zinthu zawo?
Nthawi zambiri amagawidwa molingana ndi mphamvu.
Bolt ntchito mlingo 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10,9, 12.9 ndi zina zotero giredi 10, amene 8.8 ndi pamwamba mabawuti opangidwa ndi otsika mpweya aloyi chitsulo kapena sing'anga-mpweya zitsulo ndi kutentha ankachitira (ozimitsa wamba, kudziwika monga kupsya mtima) omwe amadziwika kuti ma bawuti wamba. Kulemba kwa mlingo wa bolt kumakhala ndi magawo awiri amtundu wa digito, motsatana, kuti mphamvu yodziwikiratu yamtengo wamtengo wapatali wa bawuti ndi mtengo wosinthika wa mphamvu yosinthika.
Mwachitsanzo, ma bawuti a giredi 8.8, tanthauzo lake ndi:
1, bawuti zakuthupi mwadzina kolimba mphamvu ya 800MPa mlingo;
2, bawuti chuma zokolola mphamvu chiŵerengero cha 0,8;
3, mphamvu yodzipatulira ya bawuti mpaka 800 × 0.8 = 640MPa mlingo wa mabawuti amphamvu kwambiri omwe amagwiritsidwa ntchito kwambiri pamlingo wa 8.8 ndi 10.9, mabawuti omwe amagwiritsidwa ntchito kwambiri pamlingo wa 4.8.
Nthawi yotumiza: Aug-28-2024
