Bimetallic Composite Sliding Plates for Metal Rolling Mills

Bimetallic Composite Sliding Plates: The Engineering Standard for Modern Rolling Mills

• Mounted on the inner walls of large rolling mill housing windows

• Support and guide bearing chocks (critical for rolling)

• Solve problems with traditional single-material steel plates

• Use advanced technologies: Metallurgical bonding, Explosive cladding, Overlay welding

Core Functions

1. Protect the Mill Housing

• The mill housing is the rolling mill’s most valuable fixed part

• Bearing chocks move often during rolling (up/down, back/forth)

• Sliding plates take wear instead of the expensive housing

• Replace cheap sliding plates instead of repairing costly housing

2. Guide Bearing Chocks Precisely

• Ensures rolled steel has even thickness

• Stops bearing chocks from swinging sideways

• Keeps rolls in the right position, even under high pressure

• Precision comes from strict manufacturing after Metallurgical bonding or Overlay welding

3. Buffer Impact Energy

• Steel billets cause strong vibrations and force when fed into rolls

• Sliding plates spread rolling force evenly to the housing

• Absorb and reduce impact to prevent housing cracks

• Dual-layer design + Explosive cladding = better impact resistance

4. Resist Corrosion & Aid Lubrication

• Rolling mills have cooling water, emulsion, and scale (hard particles)

• Sliding plates + lubrication form a protective barrier

• Stops scale from causing wear and water from corroding the housing

• Wear-resistant layer (from Overlay welding or Explosive cladding) extends service life

Where They Are Used

• Hot/Cold Rolling Mill Housing Windows: Mounted on work roll and support roll bearing chocks. Withstand high temps, heavy loads, and friction (thanks to Metallurgical bonding).

• Pushing & Guiding Systems: Used on push heads and guide plates. Handle strong impact from metal billets (uses base layer toughness and surface layer wear resistance).

• Roll Changing Devices: Help heavy rolls slide smoothly in/out of the mill. Low friction from the bimetallic surface prevents damage.

Bimetallic Composite Technology: Why It’s Better

Key Composite Processes

• Metallurgical bonding: Joins two metals at the atomic level (no separation). Great for heavy-load applications.

• Explosive cladding: Uses controlled detonation to bond metals. Strong, even bond—perfect for large, heavy-duty hot rolling plates.

• Overlay welding: Adds a wear-resistant alloy layer to tough base steel. Easy to customize for specific needs.

Dual-Layer Design Benefits

• Working Surface (Overlay Layer): Hard, low-friction, wear/corrosion-resistant (high-chromium, bronze, etc.). Applied via Overlay welding or Explosive cladding.

• Base Layer: Tough, flexible steel. Absorbs vibrations/shocks—won’t break like solid hardened plates.

Why Choose Bimetallic Over Solid Steel?

• Tough & Unbreakable: Flexible base + Metallurgical bonding = no snapping/breaking. Avoids costly downtime.

• Strong Edge Retention: Bonds (from any technology) keep the wear layer intact, even under strong side forces.

• Lower Maintenance: Lasts 2-3x longer than standard liners. Less downtime and replacement labor.

• Precision: Precision-ground after bonding for perfect alignment. Reduces mill “chatter” for better steel quality.

Custom Solutions & Partnership

• We offer custom bimetallic plates for hot strip, cold tandem, and aluminum mills.

• Adjust wear/base layer thickness and choose the best process (Metallurgical bonding/Explosive cladding/Overlay welding) for your needs.

• AlasMachinery is more than a supplier—our team works with your maintenance to recommend the best composition (e.g., Steel-Bronze for hot rolling).

• Our plates are the standard for modern rolling mills—no more trade-off between toughness and wear resistance.