Chiyero chacho chakarongwa kuti chidzokororwe muna 2022 pamusangano wepagore we ISO/TC17/SC12 Steel/Continuous Rolled Flat Products Sub-Committee, uye yakatangwa zviri pamutemo muna Kurume 2023. Boka rekushanda rekunyora rakatora makore maviri nehafu, panguva iyo musangano weboka rimwe chete rekushanda uye misangano miviri yegore negore yakaitwa yehurukuro dzakasimba, uye muna Kubvumbi kuvandudzwa kwe2020, ISO 2023. 4997:2025 "Structural Grade Cold Rolled Carbon Thin Steel Plate" yakapinzwa mukati.
Iyi mwero ndeimwe gadziridzo yepasi rose inotungamirwa neChina mushure mekunge China yatora husachigaro weISO/TC17/SC12. Kuburitswa kwe ISO 4997:2025 ndeimwe budiriro mukutora chikamu kweChina mukuita basa rekumisikidza pasi rose mumunda wesimbi mahwendefa uye mitsetse mushure me ISO 8353:2024.
Carbon dhizaini yesimbi inotonhora yakakungurutswa simbi ndiro uye zvigadzirwa zvemitsetse zvakagadzirirwa kuvandudza simba uye kudzikisira ukobvu, nekudaro kudzikisa huremu hwezvigadzirwa zvekupedzisira, kuzadzisa chinangwa chekupedzisira chekuchengetedza simba uye kuderedza emission, uye nekuziva pfungwa yekugadzira ye "girinhi simbi". 2015 vhezheni yechiyero cheiyo musika inonyanya kushandiswa goho simba re280MPa simbi mamakisi haana kutaurwa. Uye zvakare, izvo zvehunyanzvi zviri mukati meiyo chiyero, senge kushata kwepamusoro uye huremu hwebatch, hazvisangane nezvinodiwa chaizvo zvekugadzirwa kwazvino. Kuti uwedzere kuwedzera kushanda kweiyo chiyero, iyo Metallurgical Indasitiri Information Standards Research Institute yakaronga Anshan Iron & Steel Co kunyorera purojekiti yepasi rose yebasa rechigadzirwa ichi. Mukati mekudzokorora, zvinodiwa zvehunyanzvi zvegiredhi idzva zvakatemerwa mukubvunzana nenyanzvi kubva kuJapan, Germany neUnited Kingdom kwenguva dzakawanda, vachiedza kuzadzisa zvinodiwa zvekugadzira nekuongorora munyika imwe neimwe uye kuwedzera huwandu hwekushandiswa kweiyo standard.
Nguva yekutumira: May-24-2025
