Enyere ọkọlọtọ maka nlegharị anya na 2022 na nzukọ kwa afọ nke ISO/TC17/SC12 Steel/Continuously Rolled Flat Products Sub-Committee, ma bụrụkwa nke a malitere na March 2023. The drafting work group were were two and a half years, during which one working group meeting and two annual meetings were were in the intense mkparịta ụka, na na April 20, ụkpụrụ nke ISO 2023. 4997:2025 “Ọkwa Nzuzo Oyi Rolled Carbon Thin Steel Plate” ka ewebatara.
Ụkpụrụ a bụ nlegharị anya ọkọlọtọ mba ụwa ọzọ nke China na-eduzi mgbe China weghaara onye isi oche nke ISO/TC17/SC12. Ntọhapụ nke ISO 4997: 2025 bụ ọganihu ọzọ na ntinye aka nke China na ọrụ nhazi ọkwa mba ụwa n'ọhịa nke efere ígwè na ibe mgbe ISO 8353: 2024 gasịrị.
Carbon structural steel oyi akpọrepu nchara efere na warara ngwaahịa e kpebisiri ike imeziwanye ike na mbenata ọkpụrụkpụ, si otú ibelata arọ nke ọgwụgwụ ngwaahịa, imezu ihe mgbaru ọsọ kasịnụ nke ike ịzọpụta na emission mbelata, na ịghọta mmepụta echiche nke "green ígwè". 2015 ụdị ọkọlọtọ maka ahịa kasị n'ọtụtụ ebe ike mkpụrụ ike nke 280MPa ígwè akara ule na-adịghị akwadoro. Tụkwasị na nke ahụ, ihe ndị dị na teknụzụ nke ọkọlọtọ, dị ka nhụsianya elu na ibu batch, adịghị emezu mkpa n'ezie nke mmepụta ugbu a. Iji kwalite ntinye nke ọkọlọtọ ahụ, ụlọ ọrụ Metallurgical Industry Information Standards Research Institute haziri Anshan Iron & Steel Co. itinye akwụkwọ maka ọrụ ọrụ ọkọlọtọ mba ụwa ọhụrụ maka ngwaahịa a. N'ime usoro nhazigharị, a na-ekpebi ihe ndị a chọrọ maka nkà na ụzụ nke ọkwa ọhụrụ site na ndị ọkachamara si Japan, Germany na United Kingdom ruo ọtụtụ oge, na-agbalịsi ike imezu ihe ndị a chọrọ maka mmepụta na nyocha na mba ọ bụla na ịgbasa ngwa ngwa nke ọkọlọtọ. Ntọhapụ nke ISO 4997: 2025 "Structural Grade Cold-Rolled Carbon Thin The Plate" na-emepụta ọkwa ọhụrụ nke China na-eme nchọpụta.
Oge nzipu: Mee-24-2025
