N'usoro mmepụta ihe nke oge a, ihe mkpuchi ígwè a na-akpọ ọkụ bụ ihe ndị bụ isi, ụdịdị ha dị iche iche na ọdịiche arụmọrụ ha na-emetụta kpọmkwem ụzọ mmepe nke ụlọ ọrụ ndị dị n'akụkụ ala. Ụdị dị iche iche nke ihe mkpuchi ígwè a na-akpọ ọkụ na-arụ ọrụ a na-apụghị ịgbanwe agbanwe na ngalaba owuwu, ụgbọala, ike, wdg. na ihe mejupụtara kemịkalụ pụrụ iche ha na ihe onwunwe igwe. Ihe ndị a ga-elekwasị anya na inyocha ụdị ihe mkpuchi ígwè a na-akpọ ọkụ nke nwere ọchịchọ ahịa kachasị elu na ọdịiche dị n'etiti ha.
Ike Isi: Q235B na SS400
Q235B bụ ígwè a na-ejikarị eme ihe n'enweghị carbon na China, nke nwere ihe dị ka 0.12%-0.20%, ma nwee ezigbo ike ịkpụzi na ịgbado ọkụ. Ike mmepụta ya bụ ≥235MPa ma a na-ejikarị ya eme ihe n'ọtụtụ ebe n'ihe gbasara owuwu ụlọ, ihe nkwado akwa mmiri na akụkụ igwe nkịtị. N'ụlọ ọrụ owuwu ụlọ, I-beams, ọwa ígwè na ígwè ndị ọzọ e ji Q235B kpụọ ígwè na-ekpo ọkụ mee na-eme ihe karịrị 60%, na-akwado ọkpụkpụ akụrụngwa obodo.
SS400 bụ ígwè e ji eme ihe n'ụwa niile nke e ji carbon rụọ, nke nwere ike yiri Q235B, mana ọ na-achịkwa ihe ndị na-adịghị ọcha nke sọlfọ na phosphorus nke ọma, ọ na-emekwa ka elu ya ka mma. N'ihe gbasara iwu ụgbọ mmiri, a na-ejikarị eriri SS400 na-ekpo ọkụ eme ihe maka akụkụ ihe owuwu. Ọ na-eguzogide nchara mmiri n'oké osimiri karịa ígwè carbon nkịtị, na-eme ka njem oké osimiri dị nchebe.
Ndị Nnọchiteanya Dị Ike: Q345B na Q960
Q345B bụ ígwè siri ike nke nwere obere alloy nke nwere 1.0%-1.6% manganese agbakwunyere, ike mmepụta ya karịrị 345MPa. Ma e jiri ya tụnyere Q235B, ike ya na-abawanye site na ihe dị ka 50%, ebe ọ na-ejigide ike ịgbado ọkụ nke ọma. Na injinịa akwa mmiri, ihe mkpuchi igbe nke ejiri Q345B ígwè a na-akpọ ọkụ mee nwere ike ibelata ibu site na 20%, na-ebelata ọnụ ahịa injinia nke ukwuu. Na 2023, owuwu akwa mmiri n'ime ụlọ ga-eri ihe karịrị tọn nde 12 nke Q345B coils a na-akpọ ọkụ, nke na-aza 45% nke mkpokọta mmepụta nke ụdị a.
Dịka onye nnọchi anya ígwè siri ike nke ukwuu, Q960 na-enweta ike mmepụta nke ≥960MPa site na teknụzụ microalloying (ịgbakwunye vanadium, titanium na ihe ndị ọzọ) yana usoro ntụ oyi a na-achịkwa na nke a na-achịkwa. N'ọhịa nke igwe injinia, enwere ike ibelata ọkpụrụkpụ nke ogwe aka kreen nke ejiri Q960 hot-rolled coil mee ka ọ bụrụ ihe na-erughị 6mm, a na-amụbakwa ikike ibu ibu site na ugboro atọ, nke na-akwalite nkwalite dị mfe nke akụrụngwa dịka ihe mgbapụ na kreen.
Ntụle Pụrụ Iche: SPHC na SAPH340
SPHC bụ ngwaahịa dị elu n'etiti ígwè ndị na-anaghị emepụta carbon dị ala. Site n'ịhazi usoro ntụgharị iji chịkwaa nha ọka, ịgbatị ya ruru ihe karịrị 30%. N'ụlọ ọrụ ngwa ụlọ, a na-eji eriri SPHC na-emepụta ebe a na-etinye ihe n'ime friji. Arụmọrụ ya dị omimi na-eme ka o doo anya na ọnụego ruru eru nke imepụta elu gbagọrọ agbagọ karịrị 98%. Na 2024, oriri nke eriri SPHC na-emepụta ihe n'ime ụlọ ga-abawanye site na 15% kwa afọ ruo nde tọn 3.2.
Dịka ígwè e ji arụ ọrụ n'ụgbọala, SAPH340 na-enweta nguzozi n'etiti ike na ike site na ịgbakwunye 0.15%-0.25% carbon na trace boron. N'imepụta okpokolo agba batrị ụgbọ ala ike ọhụrụ, coils SAPH340 na-ekpo ọkụ nwere ike iguzogide ibu ike nke karịrị 500MPa ma mezuo ihe achọrọ maka usoro ịgbado ọkụ ntụpọ. Na 2023, oke coils na-ekpo ọkụ nke ụdị a eji eme ihe n'ụgbọala ike ọhụrụ n'ime ụlọ erutela 70% nke akụkụ nhazi batrị.
| Ụdị nlereanya | Ike Mmepụta (MPa) | Ogologo (%) | Ihe Ndị A Na-ahụkarị Maka Ngwa |
| Q235B | ≥235 | ≥26 | Ụlọ, igwe nkịtị |
| Q345B | ≥345 | ≥21 | Àkwà mmiri, arịa nrụgide |
| SPHC | ≥275 | ≥30 | Ngwa ụlọ, akụkụ ụgbọala |
| Q960 | ≥960 | ≥12 | Injinia igwe, akụrụngwa dị elu |
Ọ bụrụ na ịchọrọ ịmatakwu gbasara ígwè, biko nọgide na-ege ntị ma ọ bụ kpọtụrụ anyị.
Otu Eze
Adreesị
Mpaghara ụlọ ọrụ mmepe Kangsheng,
Wuqing district, Tianjin City, China.
Ozi ịntanetị
Ekwentị
Awa
Mọnde-Sọnde: Ọrụ awa iri abụọ na anọ
Oge ozi: Eprel-02-2025