Hana ʻia nā ʻili ʻoihana i nā ʻano like ʻole a me nā standards.Steel alloys i kahi kiʻekiʻe loa e hoʻokuʻu i nā koʻikoʻi kiʻekiʻe loa ma lalo o ka mana o ka mālama ʻana i ka wela, e alakaʻi ana i ke koho ʻana o kēia huila i ka wā e hana ana i nā kī kila i hoʻohana ʻia i nā hale ʻoihana. a i kekahi manawa ʻo ka vanadium (hoʻohui ʻia ka vanadium i nā pūhui kila e pono ai ka elasticity) i loaʻa i nā pūhui kila.
I ka ʻoihana kūkulu, hoʻohana nui ʻia nā bolts structural a me nā nati i ka hana ʻana i nā hale, nā alahaka, nā pā a me nā mea kanu mana.
Hoʻohana ʻia nā wili i hoʻohana ʻia i ke kūkulu ʻana i nā kuʻi kuʻi i ke kila kiʻekiʻe, maʻamau ka papa 10.9.Grade 10.9 ʻo ia hoʻi ʻo ka tensile ikaika tensile o ka structural screw ma kahi o 1040 N / mm2, a hiki ke kū i ka 90% o ka nui o ke koʻikoʻi i hoʻopili ʻia i ke kino wili i ka ʻāpana elastic me ka hao ʻole 4.Com. 8.8 kila maloʻo, ʻoi aku ka ikaika o ka tensile a ʻoi aku ka paʻakikī o ka mālama ʻana i ka wela i ka hana.
ʻOkoʻa mai nā bolts hexagon maʻamau a me nā nati, ua hana ʻia nā bolts hexagon maʻamau a me nā nati e like me ka DIN931 maʻamau e like me ka hapalua, e like me ka DIN933 maʻamau e like me ka piha piha, a he maʻalahi nā wili hexagonal, hana pinepine ʻia e like me ka DIN6914 maʻamau. hana ʻia i ka DIN6915. ʻO nā wili o kēia hana ua kaha ʻia ʻo 10HV a ʻo ka matt black phosphating no ka hoʻomaikaʻi ʻana i ka ʻōpala o ke kaiapuni a i ʻole ka wela wela galvanized a i ʻole ka hohonu chrome matt kala, ʻelua me ka hoʻopau metala.
Ka manawa hoʻouna: Iune-13-2022
