I-Bolt yindawo eqhelekileyo yomatshini, ehlala isetyenziswa kwiindawo ezininzi, yintloko kunye ne-screw amacandelo amabini eqela le-fasteners, kufuneka isetyenziswe ngokubambisana ne-nut, isetyenziselwa ukuqinisa ukudibanisa kwamacandelo amabini ngemingxuma. Mhlawumbi awunakho ukuqonda kwezinto zebakala lebholithi, eli nqaku liza kukwazisa kwizinto eziphathekayo, ulwazi olunxulumene nebakala, ukwenzela ukuba abantu abaninzi bafunde ukuchonga ezi mpawu zincinci zebholithi.
Amabakala kunye nemathiriyeli yeebholithi ibhekisa kwintoni?
Ibanga leBolt libhekisa kwibhawuli ye-4.8grade, 8.8 grade, 10.9 grade kunye nezinye ibakala.
Izinto eziphathekayo zibhekisela kwi-bolt zenziwe zeziphi izinto eziphathekayo, ezifana ne-Q235, 35K, 40Cr, 45 # intsimbi, i-35CrMo insimbi, i-304 insimbi engenasici kunye ne-316 insimbi engenasici njalo njalo.
Ibakala leBolt kunye nezinto eziphathekayo lubudlelwane obuthile, intsimbi ethambileyo inokuvelisa kuphela iibholiti zamandla aphantsi, i-carbon steel medium inokuvelisa i-bolts yamandla aphakathi, i-carbon steel high, i-alloy steel inokuvelisa iibholiti eziphezulu zamandla. Elinye ibakala lebholithi lichaza ukwakheka kweekhemikhali ezihambelanayo kunye neempawu zoomatshini, kodwa kunye nokumisela imathiriyeli.
Nalu uluhlu lwamabakala aqhelekileyo eebholiti anokuba yintoni impahla. Inqanaba le-4.8 linokuba yi-Q235, i-Q195 kunye nezinye izinto ezithambileyo zensimbi. Inqanaba le-5.8 le-Q235 ngaphezu kwazo zonke izinto ezinokuthi zibe, azidingi unyango olushushu. Inqanaba le-8.8 intambo ububanzi be-16MM okanye ngaphantsi, 35 # unyango lobushushu bokufudumala, 16mm okanye ngaphezulu, 45 # kunye ne-carbon alloy alloy tempering ephantsi. Inqanaba le-10.9 le-medium-carbon alloy steel tempering Unyango lobushushu 35Crmo 40Cr njalo njalo.
Ngaba iibholiti eziphakamileyo ziyakwazi ukwahlula kwiibholiti eziqhelekileyo ngezinto zazo?
Ngokuqhelekileyo yahlulwe ngokwebakala lamandla.
Inqanaba leBolt 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 njalo njalo kumabakala angaphezu kwe-10, apho i-8.8 nangaphezulu iibholiti ezenziwe ngentsimbi ephantsi-carbon okanye i-medium-carbon steel kunye nobushushu bonyango (ucime, ubushushu obuqhelekileyo, owaziwa ngokuba yi-bolt). eyaziwa ngokuba ziibholiti eziqhelekileyo. Ileyibheli yenqanaba lokwenziwa kweBolt ineenxalenye ezimbini zokwakheka kwedijithali, ngokulandelelanayo, ukuba amandla okuzibamba kwexabiso lempahla yebholiti kunye nexabiso lomlinganiselo wamandla e-flexural.
Umzekelo, inqanaba lokusebenza 8.8 iibholiti zebakala, intsingiselo yile:
1, imathiriyeli yebholithi ebizwa ngokuba yi-800MPa level;
2, umlinganiselo wemveliso yebholithi ye-0.8;
I-3, amandla okuvunwa okubizwa ngokuba yi-bolt material ukuya kwi-800 × 0.8 = 640MPa inqanaba leebholithi ezixhaphakileyo ezisetyenziswa ngokuqhelekileyo kwinqanaba le-8.8 kunye ne-10.9, iibholiti eziqhelekileyo ezisetyenziswa ngokuqhelekileyo kwinqanaba le-4.8.
Ixesha lokuposa: Aug-28-2024
