صفائح الفولاذ المقاوم للصدأ المدرفلة على البارد في لفائف

Cold rolled stainless steel sheet in coil is produced by further processing hot rolled stainless steel through precision rolling at room temperature. The material is supplied in شكل لفائف, allowing continuous processing, قطع, and fabrication for industrial applications.

This product is widely used where tight tolerances, smooth surface finish, and consistent mechanical properties مطلوبة.

Cold Rolling Process of Stainless Steel

The cold rolling process involves multiple controlled steps to improve surface quality and dimensional accuracy.

1. تحضير لفائف المدرفلة على الساخن

• Raw material starts as hot rolled stainless steel coil (black coil)
• Surface contains oxide scale and requires cleaning

2. تخليل

• Acid treatment removes oxide scale
• Produces a clean metallic surface for further rolling

3. المتداول البارد (Room Temperature Reduction)

• Material is passed through rolling mills under high pressure
• Thickness is reduced with high precision
• Strength increases due to strain hardening

4. الصلب (المعالجة الحرارية)

• Restores ductility lost during cold rolling
• Conducted in controlled atmosphere furnaces

5. ممر الجلد / Temper Rolling

• Light rolling process improves:
  • التسطيح
  • الانتهاء من السطح
  • الاتساق الميكانيكي

6. التشطيب السطحي

• Final finishes include:
  • 2ب (standard industrial finish)
  • بكالوريوس (صلب مشرق, يشبه المرآة)
  • Brushed or polished surfaces

7. Slitting and Recoiling

• Coil is cut into required widths
• Recoiled for delivery or further processing

Key Characteristics of Cold Rolled Stainless Steel Coil

Cold rolling significantly enhances the performance of stainless steel.

1. جودة سطحية عالية

• سلس, ينظف, and uniform surface
• Suitable for decorative and hygienic applications

2. Tight Dimensional Tolerance

• Thickness accuracy typically within ± 0.10 ملم
• Ideal for precision fabrication

3. Increased Strength

• Work hardening improves:
  • قوة العائد
  • قوة الشد

4. Excellent Flatness

• Minimal waviness
• Better performance in laser cutting and stamping

5. قابلية جيدة للتشكيل (After Annealing)

• Maintains ductility for:
  • الانحناء
  • Deep drawing
  • تشكيل

Typical Thickness and Width Range

ملحوظات:

• Most common thickness: 0.5 مم - 3.0 مم
• Standard widths: 1000 مم, 1219 مم, 1500 مم

الخواص الميكانيكية (General Range)

Values vary depending on grade (على سبيل المثال, 304, 316, 430).

Advantages Over Hot Rolled Stainless Steel

التطبيقات النموذجية

Cold rolled stainless steel coil is widely used in:

• معدات وأدوات المطبخ
• آلات تجهيز الأغذية
• الديكور المعماري
• مكونات السيارات
• أجزاء ختم دقيقة
• Medical and pharmaceutical equipment