Thanh thép không gỉ

A bright bar is a round bar with a refined surface achieved by removing scale, surface defects, and rough layers. It is typically produced from cold drawn material and then improved through grinding and polishing.

• Smooth surface with improved brightness
• Tighter dimensional tolerance
• Reduced surface defects
• Better performance in precision machining

1. Chuẩn bị vật liệu cơ bản

The process begins with hot rolled or cold drawn round bars. Cold drawn material is preferred because it already has better accuracy and surface condition.

2. Centerless Grinding

Grinding removes surface scale and irregularities while improving roundness and dimensional precision. This step is essential for high-quality surface finishing.

3. Đánh bóng cơ khí

Polishing uses abrasive belts or wheels to further smooth the surface, creating a semi-bright or shiny appearance.

4. Optional Surface Peeling

Peeling removes the outer layer completely, eliminating defects and ensuring a uniform structure for high-performance applications.

5. Straightening and Inspection

Final steps include straightening, diameter checking, and surface quality inspection to ensure consistency.

• Polished finish with moderate gloss
• Ground finish with high precision diameter
• Mirror-like finish for decorative use
• Peeling finish for critical engineering parts

• Improved machining stability
• Higher surface quality and consistency
• Better fatigue resistance
• Reduced risk of surface defects
• Suitable for precision components

• Automotive mechanical parts
• Hydraulic and pneumatic systems
• Precision machining components
• Fasteners and shafts
• Medical and food equipment parts