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فولاد ابزار سردکار-گرمکار ۱٫۲۵۴۲ ۴۵wcrv7
فولاد ابزارسردکار ۱٫۲۸۴۲ ۹۰mncrv8 Amotit
اردیبهشت ۴, ۱۳۹۹
فولاد ابزار سردکار ۱٫۲۲۴۳ ۶۱crsiv5
اردیبهشت ۶, ۱۳۹۹
۱٫۲۵۴۲
۴۵wcrv7
فولاد ۱٫۲۵۴۲ جزو فولادهای ابزار سرد کار – گرمکار می باشد که عناصر تشکیل دهنده آن به شرح زیر می باشد:
| وانادیم V - تنگستن w | مولیبدن Mo | کروم Cr | گوگرد S | فسفر P | منگنز Mn | سیلیسیم Si | کربن C | عنصر |
|---|---|---|---|---|---|---|---|---|
| 0.15-0.20 - 1.8-2.10 | - | 0.9-1.20 | 0.035 | 0.035 | 0.2-0.4 | 0.80-1.10 | 0.40-0.50 | % درصد 1.2542 |
این فولاد ابزار سرد کار – گرمکار به دلیل وجود ۰.۵ درصد کربن تا ۵۷ راکول آبکاری و سخت می گردد.
وجود ۱ درصد کروم و ۰.۴ درصد منگنز در این فولاد آلیاژی سردکار خواص ضد سایش به آن میدهد که برای قالب های صنعتی تحت فشار بسیار مناسب می باشد.
با دارا بودن حدوداً ۲ درصد تنگستن یا ولفرام خواص ابزاری سرد کار – گرمکار آن را بهبود می بخشد و نشکن میباشد و ضد سایش و می باشد .
با داشتن ۰.۲ وانادیم این فولاد میکروآلیاژی میباشد و چقرمگی بالایی در دماهای بالا و تحت فشار زیاد از خود نشان میدهد.
دمای آبکاری این فولاد آلیاژی سردکار – گرمکار۹۳۰ تا ۸۹۰ درجه سانتیگراد و دمای کویینچ تمپرینگ (بازگشت) آن ۳۰۰ تا ۱۸۰ درجه سانتیگراد می باشد.
آبکاری این فولاد ابزار سرد کار – گرمکار در روغن انجام می پذیرد ولی با توجه به حساسیت آن بهتر است در خلا آبکاری شود.
موارد مورد استفاده آن در صنعت و کاربرد آن می توان به ابزار برش برای ورق های ضخیم و همچنین ابزار دستگاه های پنوماتیک و قالب ها و پانچ های برشکاری گرمکار و ابزارهای زائد گیر گرمکار و ابزارهای سوراخ کن شاره کرد.
به علت نشکن بودن و خواص آن کاربرد بسیاری داری و برای قالب های خم و کشش و برش گرم …..بسیار مناسب میباشد.
سختی اولیه این فولاد ۲۲۵ برینل میباشد و پس از آبکاری تا ۵۷ راکول سخت می گردد ولی سختیه مورد اطمینان برای استفاده ۵۰ الی ۵۶ راکول می باشد با توجه با قطعه مورد نظر.
نکته حائز اهمیت در قالب های برش و این فولاد اینست که حتماً بعد از آبکاری تمپر شود تا سختی آن کاهش یابد و از تردی آن کم شود.
این فولاد آلیاژی ابزار سردکار – گرمکار در انبار شرکت فولاد آلیاژی کریمی موجود می باشد برای استعلام قیمت با توجه به نوسانات شدید قیمت فولاد تماس بگیرید.
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