Izinga lahlongozwa ukuba libuyekezwe ngo-2022 emhlanganweni waminyaka yonke we-ISO/TC17/SC12 Steel/Continuously Rolled Flat Products Sub-Committee, futhi lethulwa ngokusemthethweni ngoMashi 2023. Iqembu elisebenzayo elibhalayo lathatha iminyaka emibili nengxenye, lapho kwaba khona umhlangano weqembu elilodwa kanye nemihlangano emibili yaminyaka yonke ukuze kube nezingxoxo eziqinile, futhi ngo-April 20, ukubuyekezwa kwe-ISO20 4997:2025 "I-Structural Grade Cold Rolled Carbon Thin Steel Plate" yangeniswa.
Leli zinga lingolunye ukubuyekezwa okujwayelekile kwamazwe ngamazwe okuholwa yi-China ngemva kokuba i-China ithathe isikhundla sikasihlalo we-ISO/TC17/SC12. Ukukhishwa kwe-ISO 4997:2025 kungenye impumelelo yokubamba iqhaza kweShayina emsebenzini wokulinganisa wamazwe ngamazwe emkhakheni wamapuleti ensimbi nemicu ngemuva kwe-ISO 8353:2024.
I-Carbon structural steel ebandayo ipuleti lensimbi egoqiwe kanye nemikhiqizo ye-strip izibophezele ekuthuthukiseni amandla nokunciphisa ukujiya, ngaleyo ndlela kwehliswe isisindo semikhiqizo yokugcina, kufinyelelwe umgomo oyinhloko wokonga amandla kanye nokunciphisa ukukhishwa kwe-emission, kanye nokuqaphela umqondo wokukhiqiza "wensimbi eluhlaza". Inguqulo yango-2015 yezinga lamandla esivuno asetshenziswa kakhulu emakethe amamaki ensimbi angu-280MPa awabaluliwe. Ukwengeza, okuqukethwe kobuchwepheshe bezinga, njengokushoda kwendawo kanye nesisindo seqoqo, akuhlangabezani nezidingo zangempela zokukhiqiza kwamanje. Ukuze kuthuthukiswe ukusebenza kwezinga, i-Metallurgical Industry Information Standards Research Institute ihlele i-Anshan Iron & Steel Co. ukuthi ifake isicelo sephrojekthi entsha yamazwe ngamazwe yomsebenzi walo mkhiqizo. Enqubweni yokubuyekeza, izidingo zobuchwepheshe zebanga elisha zanqunywa ngokubonisana nochwepheshe baseJapane, eJalimane nase-United Kingdom izikhathi eziningi, belwela ukuhlangabezana nezidingo zokukhiqiza nokuhlola ezweni ngalinye nokwandisa ububanzi bokusetshenziswa kwezinga.
Isikhathi sokuthumela: May-24-2025
