GW Precision Conducts Impact Test to Verify Metallurgical Remelting Steel Sleeve Performance

GW Precision Technology recently completed a comparative impact test between a conventional steel sleeve and a metallurgical remelting steel sleeve to evaluate the improvement of surface performance. Both sleeves were manufactured by centrifugal casting technology, while the metallurgical remelting steel sleeve received an additional surface strengthening layer through remelting treatment to improve hardness, wear resistance, and impact resistance.

As an important component used in cold rolling mills, foil rolling mills, and metallurgical equipment, steel sleeves are required to maintain stable performance under continuous mechanical loads, friction, and complex operating conditions. Improving surface hardness and resistance to deformation is an important factor in extending service reliability for rolling mill components.

Metallurgical Remelting Technology Improves Steel Sleeve Surface Performance

Traditional steel sleeves are commonly manufactured through centrifugal casting, which provides reliable structural strength and dimensional stability for large rolling equipment applications. The metallurgical remelting steel sleeve maintains the original centrifugal casting structure while adding a strengthened surface layer to improve the performance of the working surface.

For cold rolling mill sleeves and foil rolling mill applications, sleeve surfaces are exposed to continuous contact stress, friction, and mechanical impact during production. Through metallurgical remelting technology, GW Precision improves surface characteristics and provides more reliable solutions for high-performance rolling mill spare parts.

Hardness Comparison Between Conventional and Metallurgical Remelting Steel Sleeve

To verify the performance improvement achieved through metallurgical remelting technology, GW Precision conducted hardness testing on both steel sleeves.

• Metallurgical remelting steel sleeve: HRC 52.2 (HB 502.9);

• Conventional steel sleeve: HRC 27.8 (HB 270).

• 
  

The test results show that the metallurgical remelting steel sleeve achieved significantly higher surface hardness compared with the conventional sleeve. Higher hardness helps improve wear resistance and supports more stable performance in cold rolling and foil rolling environments.

Practical Impact Test Demonstrates Surface Stability

To further evaluate the surface performance under external impact conditions, GW Precision conducted a practical impact test. A used sleeve was lifted by an overhead crane and used as the impact object against the finished conventional steel sleeve and metallurgical remelting steel sleeve.

After testing, the conventional steel sleeve showed an impact mark of approximately 7 cm with slight local surface indentation. The metallurgical remelting steel sleeve showed an impact mark of approximately 6.5 cm while maintaining its surface profile without obvious indentation.

The comparison demonstrates that the strengthened surface layer of the metallurgical remelting steel sleeve helps improve resistance against impact deformation and maintain better surface integrity after external impact.

Supporting Cold Rolling, Foil Rolling, and Metallurgical Equipment Applications

GW Precision Technology specializes in manufacturing steel sleeves, steel spools, rolling mill spare parts, and precision mechanical components for global customers in cold rolling, foil rolling, and metallurgical industries.

With advanced manufacturing capabilities, engineering experience, and strict quality control, GW Precision continues to develop reliable solutions for demanding industrial applications. This metallurgical remelting steel sleeve impact test represents the company’s continuous efforts in material optimization, product verification, and manufacturing capability improvement.