ʻO Bolts nā huahana lako maʻamau i ko mākou ola i kēlā me kēia lā a hana nui i ko mākou ola.Eia naʻe, ʻaʻole maopopo ka poʻe he nui i ka kikoʻī a me ka nui o nā bolts.I kēia lā, e hāʻawi mākou iā ʻoe i kahi hoʻolauna ʻepekema i ka hōʻike pololei o nā bolts heleuma, me ka manaʻo e kōkua iā ʻoe.
1. Ke koho ʻana i nā mea hoʻoheheʻe kumu
ʻO ka ʻōlelo maʻamau, ʻo ka mea o ka pahu heleuma he Q235.Inā ʻaʻole lawa ka ikaika, hiki ke koho ʻia ka pahu heleuma 16Mn ma o ka helu ʻana.ʻO ka maʻamau, hoʻohana ʻia ka pahu heleuma Q235, a ʻo ka bolt ka tensile a huki-i waho.
ʻO kaʻoiaʻiʻo,ʻaʻole e hoʻokani hou nā bolts heleuma i ka hana nui i ka hale kila i hoʻokomoʻia.ʻO kahi hapa wale nō o ka ikaika shear, no ka mea, ʻo ka hana nui ke kākoʻo ma hope o ke kau ʻana, no laila e kuhikuhi ʻia ka kikoʻī i ke koho ʻana i nā bolts heleuma.ʻOiaʻiʻo, hoʻohana wale mākou i ka Q235B a i ʻole Q235A, a ʻaʻole hoʻohana i ka makau Q345, me ka lōʻihi ʻaʻole i emi iho ma mua o 150mm.
Anchor bolts: hiki ke hoʻokaʻawale ʻia lākou i nā lako heleuma bolts a me structural heleuma bolts.Pono e noʻonoʻo ʻia ke koho ʻana i nā bolts heleuma mai ka manaʻo o ke koʻikoʻi, ʻo ia hoʻi, ka ʻoki, tensile a me nā ikaika torsional i lawe ʻia e nā bolts kākoʻo paʻa.I ka manawa like, e like me ka heleuma o ka heleuma, pono lākou e lawe i ka ikaika ʻoki.No laila, pono e koho ʻia ʻo Q235 (e noʻonoʻo pū ana i ka mahana o ke kaiapuni e pale aku i ka "blue brittleness") i ka nui o nā hihia.Ke ʻike ʻia nā hale, nā hale a i ʻole nā mea hana i hoʻopaʻa ʻia e nā bolts heleuma kūloko i ka ʻāʻī ʻana a i ʻole ka torsion ma nā bolts heleuma, pono e helu ʻia ka mea mua a koho ʻia me ke anawaena a i ʻole koho pololei i ka 16Mn me ka ikaika tensile kiʻekiʻe, a pono e hoʻoholo ʻia ka hope ma ka hoʻonui ʻana i ka ka helu o na wili heleuma.Ma hope o nā mea a pau, pipiʻi nā mea waiwai i kēia manawa.
ʻOi aku ka maikaʻi o ka hoʻohana ʻana i ka Q235A.ʻOi aku ke kumukūʻai o Q235B ma mua o Q235A.ʻAʻole pono e wili ʻia nā bolts heleuma, no laila ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka Papa A.
2. ʻenehana hoʻoponopono ʻana i nā mea bolt kumu
Ke kaʻina hana o ka pahu heleuma: e hoʻohuli mua i ke kaula, a laila e kulou i ka makau, a e ʻaʻa i kahi Q235 me ka lōʻihi like o 150mm kokoke i ka makau.Eia kekahi, pono e hoʻomaopopo ʻia ʻo A3 kahi helu hōʻailona kahiko, a i kēia manawa ua like ia me ke kila Q235A.A3, ʻo ia ka inoa i hala.ʻOiai e hoʻohana mau ʻia ana, ua kaupalena ʻia i ka ʻōlelo ʻōlelo.ʻOi aku ka maikaʻi ʻaʻole e hoʻohana iā ia ma nā palapala i kākau ʻia.He kila Papa A.ʻO ka mea hana o kēia ʻano kila wale nō e hōʻoiaʻiʻo i ka hana mechanical akā ʻaʻole ka haku mele i ka wā e haʻalele ai i ka hale hana, no laila, ʻoi aku ka liʻiliʻi o nā mea haumia e like me S a me P, a ʻo ka ʻona kalapona ma kahi o 0.2%, ʻano like me ka No. 20 kila, ua like ia me Q235 ma ke kūlana hou.ʻO A3 a me A3F nā inoa mua o Q235-A, Q235-A.ʻO ke kila F A3 a me Q235, Q345 nā māka o ke kila kila.ʻO A3 ka papa kila i ka maʻamau kahiko, akā ʻaʻole i loaʻa i ke kūlana o kēia manawa (GB221-79).
Ma ke kūlana o kēia manawa, ua hoʻokomo ʻia ʻo A3 i Q235.Hōʻike ka Q235 i ka ikaika o kēia kila he 235MPa.Pēlā nō, hiki ke hoʻokaʻawale ʻia ka 345 ma Q345 i nā ʻāpana he nui, ʻo ia hoʻi: A - e hōʻoia i nā waiwai mechanical, B - e hōʻoia i nā waiwai mechanical a me nā waiwai kuʻi anu, C - e hōʻoia i ka haku mele ... , ʻAʻole ʻokoʻa loa ʻo B, C me kēlā ma ka maʻamau hou (manaʻo wau ʻo ia ka hihia), a me 1, 2, 3...... Hoʻohana ʻia e hōʻike i ka ikaika.ʻO 1 ke kū nei i ka ikaika hua o 195MPa, ʻo 2 ke kū nei i ka ikaika hua o 215MPa, a ʻo 3 ke kū nei i ka ikaika hua o 235MPa.No laila ua like ʻo A3 me Q235A i ka hōʻailona hou.Ma hope o nā mea a pau, ua hoʻohana mua ʻia ka A3, no laila nui ka poʻe i maʻa i ka hoʻohana ʻana, e like me nā mea ʻē aʻe i maʻa i ka hoʻohana ʻana i nā ʻāpana o "jin, liang".ʻO Q235 he kila hoʻolālā kalapona.Ke hoʻohālikelike ʻia me nā māka kahiko GB700-79, ʻo A3 a me C3 Q345 nā mea kila kila haʻahaʻa.Ke hoʻohālikelike ʻia me nā papa kahiko 1591-88, he nui loa nā waiwai a me nā noi o 12MnV, 16Mn 16MnRE, 18Nb a me 14MnNb Q345 - ʻo ka shaft a me ka weldment he mau waiwai mechanical piha, haʻahaʻa haʻahaʻa haʻahaʻa, maikaʻi plasticity a weldability.Hoʻohana ʻia lākou ma ke ʻano he mau hana haʻahaʻa haʻahaʻa haʻahaʻa, nā ʻāpana mechanical, nā hale kūkulu, a me nā hale metala maʻamau o nā moku haʻahaʻa a me nā kīʻaha haʻahaʻa, nā pahu aila, nā kaʻa, nā pahu, nā mīkini mining, nā mea kanu mana, nā alahaka, etc., a hiki ke hoʻohana ʻia i ka wela. kaʻawili ʻana a i ʻole nā kūlana maʻamau.Hiki iā lākou ke hoʻohana no nā hale like ʻole ma nā wahi anu ma lalo - 40 ℃.
Ka manawa hoʻouna: Sep-23-2022