ʻO ka bolt kahi ʻāpana mechanical maʻamau, hoʻohana pinepine ʻia ma nā wahi he nui. ʻO ia ke poʻo a me ka wili, ʻelua ʻāpana o ke ʻano o kahi papa o nā mea hoʻopaʻa, pono e hoʻohana pū ʻia me ka nut, ka mea nui e hoʻopaʻa i ka pilina o nā ʻāpana ʻelua me kahi puka puka. ʻAʻole paha ʻoe i manaʻo e pili ana i ka maikaʻi o ka mea bolt, e hoʻolauna kēia ʻatikala iā ʻoe i nā mea bolt, ʻike maikaʻi, i hiki i nā poʻe ke aʻo e ʻike i kēia mau waiwai liʻiliʻi o ka bolt.
He aha nā ʻano a me nā mea e pili ana i nā bolts?
ʻO ka maikaʻi o ka bolt e pili ana i ka 4.8, 8.8, 10.9 a me nā ʻano bolt ʻē aʻe.
ʻO ka mea i hoʻohana ʻia no ka hana ʻana i ka bolt ʻo Q235, 35K, 40Cr, 45 # kila, 35CrMo kila, 304 stainless steel a me 316 stainless steel, etc.
Hiki i ke kila ha'aha'a wale ke hana i nā bolts ikaika ha'aha'a, hiki i ke kila kalapona waena ke hana i nā bolts ikaika waena, hiki i ke kila kalapona ki'eki'e a me ke kila kila ke hana i nā bol ikaika ki'eki'e. Hōʻike kekahi mau māka bolt i ka haku mele a me nā waiwai mechanical e pili ana, akā e ʻike pū i ka mea.
Eia ka papa inoa o nā māka bolt maʻamau, ma muli o ka mea i hoʻohana ʻia. Hiki i ka papa 4.8 ke Q235, Q195 a me nā mea kila māmā ʻē aʻe. Hiki ke hoʻohana ʻia ka papa 5.8, Q235 no nā mea āpau a ʻaʻole koi i ka mālama wela. Papa 8.8, anawaena o ka milo 16 mm a emi mai paha, 35 #, malamaia mehana, 16 mm a oi aku, 45 # a me ke kila hao kalapona haahaa, malamaia mehana. Papa 10.9, hao kalapona kalapona kila, lapaau wela. Hana wela 35Crmo 40Cr, etc.
Hiki ke hoʻokaʻawale ʻia nā bolts kiʻekiʻe mai nā bolts maʻamau e kā lākou mea?
Hoʻokaʻawale ʻia nā bolts e like me ko lākou degere o ka ikaika.
ʻO ka pae hana Bolt 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 a pēlā aku, ʻoi aku ma mua o 10 mau māka, me nā bolts 8.8 a i luna i hana ʻia me ke kila haʻahaʻa kalapona a i ʻole ke kila kalapona waena a me ka wela-hana ʻia, ʻike ʻia ʻo nā bolts kiʻekiʻe. ʻike nui ʻia ʻo ia nā kī maʻamau. ʻO ka hōʻailona pae hoʻokō bolt he ʻelua ʻāpana o ka haku helu helu, ʻo ia hoʻi ka ikaika tensile nominal o ka mea bolt a me ka waiwai o ka ratio ikaika kulou.
Eia kekahi laʻana, ka pae hana o ka papa 8.8 bolts penei
1, ʻo ka ikaika tensile nominal o ka mea bolt he 800MPa;
2, ʻo ka lākiō ikaika o ka mea bolt he 0.8;
3, ʻo 800 × 0.8 = 640MPa ka ikaika hāʻawi inoa o ka mea bolt. ʻO nā bolts ikaika kiʻekiʻe i hoʻohana pinepine ʻia he papa 8.8 a me 10.9, a ʻo nā bolts maʻamau i hoʻohana pinepine ʻia ʻo ia ka papa 4.8.
Pehea e hiki ai iā ʻoe ke haʻi i ka ʻokoʻa ma waena o nā bolts kiʻekiʻe a me nā bolts maʻamau?
Hoʻokaʻawaleʻia nā mea hao kalapona i nā mea ikaika a me nā mea maʻamau. ʻO nā pahu kila kalapona i hanaʻia mai nā mea ikaika kiʻekiʻe i kapaʻia he mau bolts kiʻekiʻe. No ka laʻana, hoʻohana mākou i ka 45 # kila e hana i nā poʻo poʻo pālua, a no ka laʻana, hoʻohana mākou i ke kila 35k e hana i nā bolts hexagonal a me nā bolts hexagonal, ua hoʻolei ʻia kēia mau bolts, e loaʻa kahi kaʻina hana wela, ma hope o ka pau ʻana, hiki ke kiʻekiʻe o ka bolt i ka papa 8.8, ʻoiai ʻo ia ka mea hao kalapona like, akā ma muli o ke kiʻekiʻe o ka ikaika o ka hana. No ka laʻana, hoʻohana mākou i ke kila kila 40Crmo e hana i nā bolts hex 10.9, a no ka laʻana, hoʻohana mākou i ke kila kila 35Crmo e hana i nā bolts 12.9, a me nā mea ʻē aʻe, ʻoi aku ka kiʻekiʻe o kēia mau pae ma mua o ka pae 8.8, no laila ua kapa ʻia lākou he mau bolts ikaika kiʻekiʻe.
ʻO nā bolts i hana ʻia me nā mea kila kalapona maʻamau i kapa ʻia nā bolts maʻamau. No ka laʻana, hoʻohana mākou i nā mea Q235 e hana i nā bolts hexagonal 4.8, e like me kā mākou mea kila A3 no ka hana ʻana i nā hua hexagonal 4, a me nā mea ʻē aʻe, ʻo kēia mau mea ma hope o ka pau ʻana o ka hana ʻana e koi wale i ka hoʻomaʻemaʻe ʻili a i ʻole ka hoʻomaʻemaʻe ʻana i ka ʻili electro-galvanised, a ʻaʻole koi i ka mālama wela, no laila ua kapa ʻia lākou he mau bolts maʻamau.
Mai ka mea i luna aʻe, hiki iā mākou ke hoʻokumu i ke kānāwai: ʻo nā mea i kapa ʻia ʻo nā bolts ikaika kiʻekiʻe, ʻo ia hoʻi nā mea me nā ʻano mechanical like a ʻoi aku paha ma mua o 8.8 a e koi ana i ka mālama wela, ua kapa ʻia ʻo nā bolts ikaika kiʻekiʻe. ʻO nā bolts me nā mea mechanical ma lalo o 8.8 ua kapa ʻia nā bolts maʻamau, me ka ikaika o 4.8, ʻaʻole pono ka mālama wela.
Ka manawa hoʻouna: ʻAukake-30-2024