I loko o ka ʻōnaehana ʻoihana hou, ʻo nā wili kila ʻōwili wela nā mea kumu, a ʻo ko lākou ʻano like ʻole o nā hiʻohiʻona a me nā ʻokoʻa hana e pili pono ana i ke kuhikuhi hoʻomohala o nā ʻoihana ma lalo. He kuleana koʻikoʻi nā hiʻohiʻona like ʻole o nā wili kila ʻōwili wela i nā kahua o ke kūkulu ʻana, nā kaʻa, ka ikehu, a me nā mea ʻē aʻe me kā lākou ʻano kemika kū hoʻokahi a me nā waiwai mechanical. E kālele ana ka mea ma hope i ka nānā ʻana i nā hiʻohiʻona wili kila ʻōwili wela me ke koi mākeke kiʻekiʻe loa a me ko lākou ʻokoʻa koʻikoʻi.
Mana Nui Kumu: Q235B a me SS400
ʻO Q235B ke kila hoʻolālā haʻahaʻa kalapona i hoʻohana nui ʻia ma Kina, me ka nui o ke kalapona ma kahi o 0.12%-0.20%, a he maikaʻi kona plasticity a me nā waiwai wili. ʻO kona ikaika hua he ≥235MPa a hoʻohana nui ʻia i nā kiʻikuhi hale, nā kākoʻo alahaka a me nā ʻāpana mīkini maʻamau. I ka ʻoihana kūkulu hale, ʻoi aku ma mua o 60% nā I-beams, nā kila kahawai a me nā kila ʻē aʻe i hana ʻia me nā wili kila Q235B i ʻōwili wela ʻia, e kākoʻo ana i ke kino o nā ʻōnaehana kūlanakauhale.
He kila hoʻolālā kalapona i hoʻohana ʻia ma ka honua holoʻokoʻa ʻo SS400 me ka ikaika like me Q235B, akā ʻoi aku ka paʻa o ka kaohi ʻana i nā haumia sulfur a me phosphorus a ʻoi aku ka maikaʻi o ka ʻili. Ma ke kahua o ke kūkulu moku, hoʻohana pinepine ʻia nā ʻōwili wela SS400 no nā ʻāpana hoʻolālā hull. ʻOi aku ka maikaʻi o kona kūpaʻa i ka palaho wai kai ma mua o ke kila kalapona maʻamau, e hōʻoiaʻiʻo ana i ka palekana o nā huakaʻi moana.
Nā Lunamakaʻāinana ikaika kiʻekiʻe: Q345B a me Q960
He kila ikaika kiʻekiʻe ʻo Q345B me ka manganese 1.0%-1.6% i hoʻohui ʻia, a ʻoi aku ka ikaika o ka hua ma mua o 345MPa. Ke hoʻohālikelike ʻia me Q235B, ua hoʻonui ʻia kona ikaika ma kahi o 50%, me ka mālama ʻana i ka hiki ke hoʻopili maikaʻi ʻia. I ka ʻenekinia alahaka, hiki i nā girders pahu i hana ʻia me nā wili kila ʻōwili wela Q345B ke hōʻemi i ke kaumaha ma 20%, e hōʻemi nui ana i nā kumukūʻai ʻenekinia. I ka makahiki 2023, e hoʻopau ke kūkulu ʻana i ke alahaka kūloko ma mua o 12 miliona tone o nā wili Q345B ʻōwili wela, e helu ana i 45% o ka huina o ka hana o kēia ʻano.
Ma ke ʻano he ʻelele maʻamau o ke kila ikaika loa, loaʻa iā Q960 kahi ikaika hua o ≥960MPa ma o ka ʻenehana microalloying (hoʻohui i ka vanadium, titanium a me nā mea ʻē aʻe) a me nā kaʻina hana wili a hoʻomalu ʻia. Ma ke kahua o nā mīkini ʻenekinia, hiki ke hoʻemi ʻia ka mānoanoa o ka lima crane i hana ʻia me ka wili wela Q960 i lalo o 6mm, a hoʻonui ʻia ka hiki ke lawe i ka ukana i 3 mau manawa, kahi e paipai ai i ka hoʻonui māmā o nā lako e like me nā mea ʻeli a me nā crane.
Hoʻohālikelike Kūikawā: SPHC a me SAPH340
He huahana kiʻekiʻe ka SPHC ma waena o nā kila haʻahaʻa kalapona i ʻōwili wela ʻia. Ma ka hoʻomaikaʻi ʻana i ke kaʻina hana ʻōwili e kāohi i ka nui o ka palaoa, hiki aku ka elongation ma mua o 30%. I ka ʻoihana mīkini home, hoʻohana ʻia nā wili wela SPHC e hana i nā hale compressor friji. ʻO kāna hana huki hohonu e hōʻoiaʻiʻo ana ua ʻoi aku ka nui o ka hoʻokumu ʻana o ka ʻili piʻo paʻakikī ma mua o 98%. I ka makahiki 2024, e piʻi ka hoʻohana ʻana o nā wili wela SPHC i ke kahua mīkini home ma 15% i kēlā me kēia makahiki a i 3.2 miliona tons.
Ma ke ʻano he kila hoʻolālā kaʻa, hoʻokō ʻo SAPH340 i kahi kaulike ma waena o ka ikaika a me ka paʻakikī ma ka hoʻohui ʻana i ka 0.15% -0.25% carbon a me ka trace boron. I ka hana ʻana o nā mōlina pila kaʻa ikehu hou, hiki i nā wili wela SAPH340 ke kū i nā ukana ikaika ma mua o 500MPa a hoʻokō i nā koi o nā kaʻina hana kuʻi kiko. I ka makahiki 2023, ua hiki aku ka hapa o nā wili wela o kēia ʻano i hoʻohana ʻia i nā kaʻa ikehu hou kūloko i 70% o nā ʻāpana hoʻolālā pila.
| Hoʻohālike | Ikaika Hua (MPa) | Hoʻolōʻihi (%) | Nā hiʻohiʻona noi maʻamau |
| Q235B | ≥235 | ≥26 | Nā hale kūkulu hale, nā mīkini laulā |
| Q345B | ≥345 | ≥21 | Nā alahaka, nā moku kaomi |
| SPHC | ≥275 | ≥30 | Nā mīkini home, nā ʻāpana kaʻa |
| Q960 | ≥960 | ≥12 | Nā mīkini ʻenekinia, nā lako kiʻekiʻe |
Inā makemake ʻoe e ʻike hou aʻe e pili ana i ke kila, e ʻoluʻolu e hoʻomau i ka hoʻolohe ʻana a i ʻole e kelepona mai iā mākou.
Pūʻulu Aliʻi
Wahi noho
ʻĀpana ʻoihana hoʻomohala ʻo Kangsheng,
ʻO ka moku ʻo Wuqing, ke kūlanakauhale ʻo Tianjin, Kina.
Leka uila
Kelepona
Nā hola
Pōʻakahi-Lāpule: Hana lawelawe 24 hola
Ka manawa hoʻouna: ʻApelila-02-2025