He aha ka ʻokoʻa ma waena o Q195, Q215, Q235, Q255 a me Q275 e pili ana i nā mea?
ʻO ke kila structural carbon ka kila i hoʻohana nui ʻia, ʻo ka helu nui loa i ʻōwili pinepine ʻia i ke kila, profiles a me nā profiles, maʻamau ʻaʻole pono e hoʻohana pololei ʻia i ka wela, ka mea nui no ka hana maʻamau a me ka ʻenekinia.
Q195, Q215, Q235, Q255 a me Q275, a me nā mea'ē aʻe, e hōʻike i ka helu o ke kila, ka pae kila e ka mea hōʻailona o ka helu hua o ka leka (Q), ke kumu waiwai, ka maikaʻi, ka maikaʻi a me nā hōʻailona'ē aʻe (A. , B, C, D) ke ʻano deoxygenation o nā hōʻailona a pēlā aku nā ʻāpana ʻehā o ka haku mele. Mai ka hoʻohui kemika, nā māka kila māmā Q195, Q215, Q235, Q255 a me Q275 mau māka nui, ʻoi aku ka kiʻekiʻe o ka ʻona kalapona, ka ʻike manganese, ʻoi aku ka paʻa o kona plasticity. Mechanical waiwai mai nā helu, nā māka ma luna e hōʻike i ka mānoanoa ≤ 16mm o ka hua kiko o ke kila. ʻO kona ikaika tensile: 315-430, 335-450, 375-500, 410-550, 490-630 (obN / mm2); qi kona elongation: 33, 31, 26, 24, 20 (0.5%). No laila, i ka hoʻolauna ʻana i ke kila i nā mea kūʻai aku, pono e hoʻomanaʻo ʻia nā mea kūʻai aku e kūʻai i nā mea like ʻole o ke kila e like me nā mea huahana i makemake ʻia, i ʻole e hoʻopilikia i ka maikaʻi o ka huahana.
He aha ka ʻokoʻa ma waena o nā mea Q235A a me Q235B?
ʻO Q235A a me Q235B nā kila kalapona. Ma ka 'āina maʻamau GB700-88, Q235A a me Q235B mea hoʻokaʻawale mea nui i loko o ke kalapona maʻiʻo o ke kila, ka mea no ka Q235A mea kalapona maʻiʻo ma 0.14-0.22 ﹪ ma waena; ʻAʻole hana ka mea Q235B i ka hoʻāʻo hopena, akā hana pinepine i ka hoʻāʻo hopena wela, V-notch. Ma ka hoʻohālikelike ʻana, ʻoi aku ka maikaʻi o nā waiwai mechanical o ke kila Q235B ma mua o ke kila Q235A. Ma keʻano laulā, hōʻailona ʻia ka wili kila ma nā ʻaoʻao i hoʻopau ʻia ma mua o ka haʻalele ʻana i ka hale hana ma ka pā ʻike. Hiki i nā mea hoʻohana ke haʻi inā he Q235A, Q235B, a i ʻole nā mea ʻē aʻe ma ka pā kaha.
ʻO nā māka kila Iapana he SPHC, SPHD, a pēlā aku. He aha ke ʻano?
ʻO nā ʻāpana kila Iapana (JIS series) o ke kila hana maʻamau he ʻekolu ʻāpana: ʻo ka hapa mua e hōʻike i ka mea, e like me: S (Steel) ʻo ia hoʻi ke kila, F (Ferrum) ʻo ia ka hao. ʻO ka ʻāpana ʻelua o nā ʻano like ʻole, nā ʻano, nā mea hoʻohana, e like me P (pā) kēlā pā, T (tube), K (kogu) kēlā mea hana. ʻO ka hapakolu o ka papaʻaina hiʻohiʻona o ka helu, maʻamau ka liʻiliʻi tensile ikaika. E like me: ss400 - ka mua s i ke kila (Steel), ka lua s i ka "kūkulu" (Structuree), 400 no ka laina haʻahaʻa ikaika o 400Mpa maʻamau structural kila. Ma waena o lākou: sphc ---- mua Ssteel Steel abbreviation, P no ka pāpaʻi Pate abbreviation, H no ka wela Heat abbreviation, Commercial abbreviation, ka holoʻokoʻa hōʻike i ka laulā wela-wili a me ke kila.
SPHD----- hōʻike i ka pepa kila ʻōwili wela a me ke kāʻei no ke kaha ʻana.
ʻO SPHE------ e hōʻike ana i nā ʻāpana kila i ʻōwili ʻia a me nā ʻāpana no ke kaha kiʻi hohonu.
ʻO SPCC------ e hōʻike ana i ka pepa kila kalapona i ʻōwili ʻia i ke anuanu no ka hoʻohana maʻamau, e like me ka pae Kina Q195-215A. ʻO ke kolu o ka leka C he pōkole ia no Cold, i koi ʻia e hōʻoia i ka hoʻāʻo tensile ma ka hopena o ka papa a me T no SPCCT.
SPCD--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------'e i mea e hō'ike ai i ke kila kalapona a me ke kila kila no ke ku'i'ana, e like me Kina 08AL (13237) ke kila kila kila ki'eki'e.
ʻO SPCE------ e hōʻike ana i ka pepa kila kalapona i ʻōwili ʻia i ke anuanu no ke kaha kiʻi hohonu, e like me Kina 08AL (5213) ke kila kuʻi. No ka hōʻoia ʻana i ka hana ʻole, hoʻohui i ka N i SPCEN ma ka hopena o ka papa.
ʻO ka pepa kila kalapona i ʻōwili ʻia a me ka hoʻopaʻa inoa ʻana, kūlana annealed no A, paʻa maʻamau no S, 1/8 paʻakikī no 8, 1/4 paʻakikī no 4, 1/2 paʻakikī no 2.
Ka helu hoʻopau o ka ʻili: ʻaʻohe hoʻopau ʻālohilohi no D, hoʻopau ʻālohilohi no B. E like me ka SPCCT-SD e hōʻike ana i ka maʻamau maʻamau, ʻaʻohe ʻōniʻoniʻo e hoʻopau ana i ka pepa kalapona i ʻōwili ʻia no ka hoʻohana maʻamau. A laila, hōʻike ʻo SPCCT-SB i ka maʻamau maʻamau, hoʻopau maikaʻi ʻia, ka pepa kalapona i ʻōwili ʻia me nā waiwai mīkini paʻa.
Ka manawa hoʻouna: Jun-24-2024
