تولید ورق استیل با ذوب ضایعات آهنی شروع، و سپس ترکیب شیمیایی آن در کارگاه ذوب مشخص می گردد. بدین صورت که ابتدا مواد خام – استنلس استیل و آلیاژ های آهنی بازیافت شده – در یک کوره قوس الکتریکی با ظرفیتی -بالغ بر 160 تن- تبدیل به مذاب می شود.
سپس فلز مذاب به یک مبدل منتقل می شود که برای حصول ترکیب شیمیایی مورد نظر، عناصر آلیاژی به آن اضافه می گردد. به همین صورت می توان تمامی گرید های استاندارد را تولید نمود. پاتیل مذاب به منظور حصول دقیق ترین ترکیب شیمیایی و دمای استاندارد، قبل از فرایند ریخته گری پیوسته شامل عناصر آلیاژی دیگری نیز می باشد.
در نتیجه آلیاژ مذاب در طول فرایند ریخته گری پیوسته ریخته گری، سرد و بعد منجمد می شود. در این مرحله عرض حداکثر مشخص می شود و استیل با طول و عرض های مورد نظر از طریق هوا برش به تکه ورق تقسیم می شوند، که قبل از اینکه این ورق ها را جهت نورد گرم وارد غلتک ها کنند، به منظور از بین بردن عیوب سطحی روی سطح زمین می نشانند.
اولین مرحله از کاهش ضخامت ورق اینجا صورت می گیرد. این فرایند در ابتدا شامل دوباره گرم کردن ورق ها در یک کوره با دمایی معادل 1250 درجه سانتی گراد می باشد. کاهش اولیه ضخامت در حین چندین پاس نورد حاصل می شود در حالی که تونل گرمایی، دمای ورق ها را در طول کاهش ضخامت حفظ می کند. در نتیجه ورق ها طی 7 پاس نورد به ضخامت های تقریبی مورد نظر می رسند. فلز بعد از سرد شدن، به علت سطح اکسیدی به شکل کویل یا کویل سیاه در می آید. در نهایت کویل ها جهت آنیل و شستشوی شیمیایی به بخش مورد نظر منتقل می شوند.
این مرحله بهبود خواص مکانیکی استنلس استیل را شامل می شود. این کویل ها برای استفاده در جاهایی که زیبایی مد نظر نیست، مخصوصاً کاربرد های صنعتی وارد بازار فروش می شوند. کویل های سیاه در کوره آنیل حرارت داده می شوند. این عملیات، خواص مکانیکی استنلس استیل را بهبود می دهد. سپس سطح کویل ها با عملیات شات بلاست اکسید زدایی می شود. فرایند شستشوی شیمیای در حمام های اسید با شستشو در آب و خشک کردن در هوا و سفیدی سطح بدون هیچگونه اکسیدی دنبال می شود. در این مرحله، کویل های سفید بدون نیاز به نورد سرد، یا حتی پرداخت سطح می توانند وارد بازار شوند.
در این مرحله ضخامت ورق با توجه به نیاز نهایی مشتری کاهش داده می شود. آنیل پایانی خواص مورد نیاز با توجه به درخواست مشتری را به محصول می دهد. در نتیجه فرایند نورد سرد، سطح پرداخت و صافی سطح محصول این امکان را می دهد که ورق های مورد نظر برای کاربردهای دارای اهمیت از نظر زیبایی از جمله لوازم منزل مورد استفاده قرار گیرند. ضخامت کویل های سفید دوباره در فرایند نورد سرد کاهش می یابند. نورد سرد برای کاهش ضخامت و بهبود کیفیت سطح صورت می گیرد. بعد از نورد سرد، عملیات آنیل، خواص مکانیکی استنلس استیل را بهبود می دهد. سپس یک عملیات شستشوی شیمیایی نهایی اکسید های ایجاد شده ناشی از آنیل را از بین می برد.
عملیات دیگر این است که برای حصول سطح پرداخت آنیل روشن (BA) با توجه به نیاز، آنیل تحت یک اتمسفر محافظت شده انجام گیرد. فرایند آنیل، داکتیلیتی و شکل پذیری را بهبود می بخشد. در این مرحله هیچ اکسیدی ایجاد نمی شود و هیچ شستشوی شیمیایی لازم نیست. همچنین سطح ورق بسیار براق است.
عملیات پاس سطحی، صافی و سطح کویل را تضمین می کند. برای این کار یک، دو یا سه پاس نورد لازم است و سطوح BA و 2B که برای استفاده در ساخت لوازم منزل مناسب اند، تولید می شوند.
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