Ibholithi yindawo eqhelekileyo yoomatshini, esetyenziswa rhoqo kwiindawo ezininzi. Iyintloko kunye ne-screw, iinxalenye ezimbini zokubunjwa kweklasi ye-fasteners, ekufuneka isetyenziswe ngokubambisana ne-nut, ngokukodwa ukukhusela ukudibanisa kwamacandelo amabini kunye nomngxuma. Mhlawumbi awunayo ingcamango malunga nomgangatho we-bolt material, eli nqaku liza kukwazisa kwi-bolt material, ulwazi lwekhwalithi, ukuze abantu abaninzi bafunde ukuchonga ezi mpawu zincinci zebholiti.
Ziziphi iimpawu kunye nezixhobo zeebholithi ezibhekiselele kuyo?
Umgangatho webholithi uhambelana ne-4.8, 8.8, 10.9 kunye nezinye iimpawu zebholt.
Izinto ezisetyenziselwa ukuvelisa i-bolt yi-Q235, i-35K, i-40Cr, i-45 # insimbi, i-35CrMo insimbi, i-304 insimbi engenasici kunye ne-316 insimbi engenasici, njl.
Intsimbi ethambileyo inokuvelisa kuphela iibholiti zamandla aphantsi, intsimbi yekhabhoni ephakathi inokuvelisa iibholiti zamandla aphakathi, intsimbi ephezulu yekhabhoni kunye nentsimbi yealloy inokuvelisa iibholiti zamandla aphezulu. Amanye amabakala e-bolt achaza ukubunjwa kweekhemikhali kunye neepropati ezihambelanayo zoomatshini, kodwa zichonge izinto eziphathekayo.
Nalu uluhlu lwamabakala ebholithi aqhelekileyo, ngokuxhomekeke kwizinto ezisetyenzisiweyo. IBanga le-4.8 linokuba yi-Q235, i-Q195 kunye nezinye izinto zensimbi ezithambileyo. IBakala 5.8, i-Q235, ingasetyenziselwa zonke izinto kwaye ayifuni unyango olushushu. Inqanaba le-8.8, ububanzi bentambo ye-16 mm okanye ngaphantsi, i-35 #, iphathwa ukushisa, i-16 mm okanye ngaphezulu, i-45 # kunye nentsimbi ephantsi ye-carbon alloy, iphathwe ukushisa. Inqanaba le-10.9, intsimbi ephakathi kwe-carbon alloy, unyango lobushushu. Unyango lobushushu 35Crmo 40Cr, njl.
Ngaba iibholiti eziphakamileyo ziyakwazi ukwahlula kwiibholiti eziqhelekileyo ngezinto zazo?
Iibholithi ngokubanzi zahlulwe ngokweqondo lazo lamandla.
Inqanaba leBolt 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 njalo njalo, ngaphezu kwe-10 amabakala, kubandakanywa iibholithi ze-8.8 nangaphezulu ezenziwe ngentsimbi ephantsi kwekhabhoni okanye i-medium-carbon steel kunye nobushushu bonyango (oluqilimayo, oluqhelekileyo, oluqhelekileyo, olune-bolted bolted). eyaziwa njengeebholiti eziqhelekileyo. Ukumakishwa komgangatho wokusebenza kwebholithi kubandakanya iinxalenye ezimbini zokwakheka kwamanani, ngokulandelelanayo amandla okuzibamba kwesixhobo sebholithi kunye nexabiso lomlinganiselo wamandla okugoba.
Umzekelo, umgangatho wokusebenza weklasi ye-8.8 bolts ulandelayo
I-1, amandla okuzinza okubizwa ngokuba yi-bolt material yi-800MPa;
I-2, umlinganiselo wamandla esivuno sempahla ye-bolt ngu-0.8;
3, amandla okuvunwa okubizwa ngokuba yi-bolt material yi-800 × 0.8 = 640MPa. Iibholiti ezisetyenziswa ngokuqhelekileyo zibakala 8.8 kunye ne-10.9, kwaye iibholiti eziqhelekileyo ezisetyenziswa ngokuqhelekileyo zibakala 4.8.
Ungawubona njani umahluko phakathi kweebholiti eziphezulu kunye neebholiti eziqhelekileyo?
Izinto zensimbi zekhabhoni zihlulwe zibe zizixhobo eziphezulu kunye nezinto eziqhelekileyo. Iibhotshi zensimbi zekhabhoni eziveliswe kwizinto eziphezulu zamandla zibizwa ngokuba yi-bolts high-strength bolts. Umzekelo, sisebenzisa i-45 # intsimbi ukuvelisa iibholiti zentloko ezimbini, kwaye umzekelo, sisebenzisa i-35k yentsimbi ukuvelisa iibholithi ezine-hexagonal kunye neebholiti ezine-hexagonal, ezi bholithi ziyaphoswa, kuya kubakho inkqubo yonyango lobushushu, emva kokugqitywa, inqanaba lebholithi lifikelela kwiklasi ye-8.8, nangona i-carbon steel material efanayo, kodwa ngenxa yokuphuculwa komgangatho webholt, ebizwa ngokuba yizinga eliphezulu le-bolt. Ngokomzekelo, sisebenzisa i-40Crmo alloy steel ukuvelisa i-10.9 hex bolts, kwaye umzekelo, sisebenzisa i-35Crmo alloy steel ukuvelisa i-12.9 bolts, njl., ezi nqanaba ziphezulu kunezinga le-8.8, ngoko zibizwa ngokuba yi-bolts yamandla aphezulu.
Iibholiti eziveliswe ngezinto eziqhelekileyo ze-carbon steel zibizwa ngokuba ziibholiti eziqhelekileyo. Ngokomzekelo, sisebenzisa izinto ze-Q235 ukuvelisa iibholiti ze-4.8 ze-hexagonal, njengezinto zethu ze-A3 zensimbi ukuvelisa amantongomane angama-4, njl.
Ukusuka apha ngasentla, sinokuseka umthetho: okubizwa ngokuba yi-bolts high-strength bolts, oko kukuthi, abo baneempawu zomatshini ezilingana okanye ezingaphezulu kwe-8.8 kwaye ezifuna unyango lokushisa, zibizwa ngokuba yi-bolts-high-power bolts. Iibholiti ezineempawu zomatshini ezingaphantsi kwe-8.8 zibizwa ngokuba ziibholiti eziqhelekileyo, ezinamandla angama-4.8, ezingadingi unyango olushushu.
Ixesha lokuposa: Aug-30-2024