I ke koho ʻana i ke kila kūpono no nā noi ʻoihana, ʻo ka hoʻomaopopo ʻana i ka haku mele ʻana a me nā waiwai o nā pae like ʻole he mea koʻikoʻi. ʻO kekahi papa kila maʻamau i ke kūkulu ʻana a me ka hana ʻana ʻo S235JR. Akā ʻo S235JR ke kila kalapona? Ma kēia alakaʻi piha, e ʻimi mākou i nā ʻano o Paipu S235JR, e ʻimi i kona ʻano kalapona, a e hoʻohālikelike me nā māka kila ʻē aʻe. Ma ka hopena o kēia ʻatikala, e ʻike maopopo ʻoe i ka hoʻohālikelike ʻana o S235JR a me kona kūpono no nā noi like ʻole.
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He aha ka wehewehe ʻana o Carbon Steel, a ʻo S235JR e hoʻokō i nā koina?
No ka hoʻoholo inā he kila kalapona paha ʻo S235JR, pono mākou e hoʻomaopopo mua i ka mea e wehewehe ai i ke kila kalapona. ʻO ke kila kalapona kahi huila o ka hao a me ke kalapona, me ke kalapona ka mea hoʻohui mua. Ua wehewehe ka American Iron and Steel Institute (AISI) i ke kila kalapona ma ke ʻano he kila ʻaʻole i ʻoi aku ma mua o 2% kalapona a ʻaʻohe mea hoʻohuihui ʻē aʻe i nā nui e lawa ai ke hoʻololi i nā waiwai o ke kila.
Hoʻokaʻawale ʻia nā kila kalapona i ʻekolu pūʻulu nui e pili ana i kā lākou ʻike kalapona:
- Ke kila hao haʻahaʻa: 0.05% i ka 0.25% kalapona
- Medium-carbon kila: 0.25% a 0.60% kalapona
- Ke kila kalapona kiʻekiʻe: 0.60% i ka 1.25% kalapona
ʻO ka S235JR he kila kalapona maoli nō, e hāʻule ana i loko o ka māhele kila haʻahaʻa. ʻO ka "S" ma S235JR ke kū nei i ke kila kila, ʻoiai ʻo "235" e hōʻike ana i kona ikaika haʻahaʻa loa o 235 MPa (megapascals). ʻO ka inoa "JR" e pili ana i nā koi ho'āʻo hopena kūikawā a me nā palena hoʻohui kemika.
Ma ke ʻano he kila kalapona haʻahaʻa, hōʻike ʻo S235JR i ka weldability maikaʻi loa, formability, a me ka ductility. Hana kēia mau waiwai Paipu S235JR he koho maikaʻi loa no nā noi hoʻolālā like ʻole, me ke kūkulu ʻana, ka hana mīkini, a me nā kumu ʻenekinia maʻamau.
He aha ke ʻano o ka Carbon o S235JR i hoʻohālikelike ʻia me nā papa kila ʻē aʻe?
He mea nui ka hoʻomaopopo ʻana i ka ʻike kalapona o S235JR no ka hoʻohālikelike ʻana me nā māka kila ʻē aʻe a me ka hoʻoholo ʻana i kona kūpono no nā noi kikoʻī. Wahi a ka European Standard EN 10025-2, S235JR he 0.17% ka nui no ka mānoanoa nominal a hiki i ka 16mm, a me ka 0.20% no ka mānoanoa ma waena o 16mm a me 40mm.
E hoʻohālikelike kākou i ka maʻiʻo kalapona o S235JR i kekahi mau māka kila maʻamau.
- S275JR: ʻO ka maʻiʻo kalapona kiʻekiʻe loa o 0.21%
- S355JR: ʻO ka maʻiʻo kalapona kiʻekiʻe loa o 0.24%
- ASTM A36: ʻO ka maʻiʻo kalapona kiʻekiʻe loa o 0.26%
- AISI 1018: Loaʻa ka ʻike kalapona mai 0.14% a 0.20%
- AISI 1045: Loaʻa ka ʻike kalapona mai 0.42% a 0.50%
E like me kā mākou e ʻike ai, he haʻahaʻa haʻahaʻa ko S235JR i hoʻohālikelike ʻia me nā pae kila ʻē aʻe he nui. Hāʻawi kēia ʻike kalapona haʻahaʻa i kāna weldability maikaʻi loa a me ka hoʻohua ʻana, e hana ana i ka paipu S235JR i koho nui no nā noi like ʻole.
He kuleana koʻikoʻi ka ʻike kalapona i ke kila S235JR i ka hoʻoholo ʻana i kāna mau waiwai mechanical. ʻOiai e hāʻawi ana i ka ikaika kūpono no nā noi hoʻolālā he nui, ʻo ka haʻahaʻa haʻahaʻa o ke kalapona e hōʻoiaʻiʻo i ka paʻa ʻana o ke kila a maʻalahi hoʻi e hana pū me. Hana kēia kaulike o nā waiwai Paipu S235JR he koho maikaʻi loa no nā papahana e koi ana i ka ikaika a me ka hana.
Pehea ka hoʻohālikelike ʻana o S235JR me nā hao hao haʻahaʻa a me nā hao kalapona liʻiliʻi?
No ka mahalo piha ʻana i nā hiʻohiʻona o ka paipu S235JR, pono e hoʻohālikelike ʻia me nā kila haʻahaʻa a me nā hao kalapona waena. E kōkua ana kēia hoʻohālikelike i ka hōʻike ʻana i nā waiwai kūʻokoʻa o S235JR a me kona kūpono no nā noi like ʻole.
Hoʻohālikelike me nā hao hao haʻahaʻa:
Hāʻule ka S235JR i loko o ka māhele kila haʻahaʻa, kaʻana like i nā ʻano me nā kila ʻē aʻe o kēia hui. ʻO kekahi mau kila haʻahaʻa haʻahaʻa maʻamau me AISI 1018 a me ASTM A36. Ke hoʻohālikelike ʻia me kēia mau kila, hōʻike ʻo S235JR:
- Hiki like: E like me nā kila haʻahaʻa haʻahaʻa, wili maʻalahi ʻia ʻo S235JR me ka ʻole o ka hoʻomaʻamaʻa ʻana i ka wela ma hope o ka weld i ka nui o nā hihia.
- Hiki ke hoʻohālikelike ʻia: Paipu S235JR hiki ke hana maʻalahi, kūlou, a hana ʻia, kūpono ia no nā ʻano hana hana like ʻole.
- Ka ikaika haʻahaʻa: ʻOiai ʻaʻole ikaika e like me nā kila kalapona kiʻekiʻe, hāʻawi ʻo S235JR i ka ikaika kūpono no nā noi hoʻolālā he nui.
- ʻO ka ductility maikaʻi: ʻO ka haʻahaʻa haʻahaʻa kalapona e hōʻoiaʻiʻo i ka S235JR e hoʻomau i ka ductile, e ʻae ai i ka deformation plastic me ka ʻole o ka haki.
Hoʻohālikelike me Medium-Carbon Steels:
ʻO nā kila kalapona liʻiliʻi, e like me AISI 1045, he ʻoi aku ka nui o ke kalapona ma mua o S235JR. I ka hoʻohālikelike ʻana iā S235JR i nā kila kalapona waena, ʻike mākou i kēia mau ʻokoʻa:
- ʻO ka ikaika haʻahaʻa: S235JR maʻamau ka haʻahaʻa haʻahaʻa a me ka ikaika tensile i hoʻohālikelike ʻia me nā kila kalapona waena.
- ʻOi aku ka maikaʻi o ka weldability: ʻO ka haʻahaʻa carbon content o S235JR ka mea maʻalahi ke wili ma mua o nā kila kalapona waena, pono paha e koi ʻia ka hoʻomehana mua a i ʻole nā ʻenehana wili kūikawā.
- Hoʻonui ʻia ka ductility: S235JR ka mea maʻamau i ʻoi aku ka ductile ma mua o nā kila kalapona waena, e ʻae ai i ka deformation ʻoi aku ma mua o ka hāʻule ʻana.
- Hoʻemi ʻia ka paʻakikī: Hiki ke hoʻomaʻamaʻa ʻia nā kila kalapona liʻiliʻi no ka loaʻa ʻana o nā pae paʻakikī kiʻekiʻe, ʻoiai ʻo S235JR ka palena o ka paʻakikī ma muli o kona ʻano haʻahaʻa kalapona.
ʻO nā waiwai kūikawā o ka paipu S235JR he koho maikaʻi loa ia no nā noi e pono ai ke kaulike o ka ikaika, weldability, a me ka formability. Aia kekahi mau hoʻohana maʻamau no S235JR:
- Nā mea hoʻolālā i ke kūkulu hale
- Nā ʻāpana mīkini a me nā ʻāpana mīkini
- Pipelines no nā noi haʻahaʻa haʻahaʻa
- Nā papa a me nā kākoʻo ma nā ʻoihana like ʻole
- Nā ʻĀpana kaʻa
ʻOiai ʻaʻole kūpono ʻo S235JR i nā noi e koi ana i ka ikaika kiʻekiʻe a i ʻole ka paʻakikī, ʻo kona versatility a me ka maʻalahi o ka hoʻohana ʻana he koho kaulana ia ma nā ʻoihana he nui.
Mea Mea Hoʻolako Paipu S235JR Kiʻekiʻe
I ka hopena, he kila kalapona maoli ʻo S235JR, i hoʻokaʻawale ʻia ma ke ʻano he kila kalapona haʻahaʻa. ʻO kona ʻano kalapona haʻahaʻa haʻahaʻa o 0.17% a i 0.20% ke kau nei i loko o kēia ʻāpana, e hāʻawi ana i kahi kaulike maikaʻi o ka ikaika, weldability, a me ka formability. Ke hoʻohālikelike ʻia me nā kila haʻahaʻa haʻahaʻa a me ke kalapona waena, hōʻike ʻo S235JR i kona versatility a kūpono no ka nui o nā noi.
ʻO kāna mau waiwai kūʻokoʻa e lilo ia i koho kūpono no nā ʻāpana kūkulu, nā kumu ʻenekinia maʻamau, a me nā noi ʻoihana like ʻole. ʻO kona maʻalahi o ka hoʻopili ʻana a me ka hoʻokumu ʻana, i hui pū ʻia me ka ikaika kūpono, e hōʻoiaʻiʻo i ka S235JR i koho kaulana i waena o nā ʻenekinia a me nā mea hana like.
Ke nānā neiʻoe paipu S235JR kiʻekiʻe no kāu papahana aʻe? Mai nānā hou aku ma mua o Longma Group. Ma ke ʻano he mea nui o Kina e hana ai i ka paipu kila ERW/LSAW mai ka makahiki 2003, ʻoihana mākou i ka hana ʻana i nā paipu kila nui-diameter, pā mānoanoa, ʻaoʻao ʻelua, sub-arc-seam. Loaʻa kā mākou paipu i nā ʻano nui a me nā mānoanoa e hoʻokō i kāu mau pono kikoʻī.
Mai poina i ka manawa e hoʻonui ai i kāu hana me kā mākou huahana kiʻekiʻe. E kelepona iā mākou i kēia lā ma info@longma-group.com e kūkākūkā i kāu mau koi paipu a e hoʻomaka kāua i kāu huakaʻi i ka holomua. Me ka ʻike a me nā huahana maikaʻi o Longma Group, hiki iā ʻoe ke hilinaʻi i ka hana a me ka hilinaʻi o kāu mau hoʻonā paipu kila.
