Case Study: Integrated Solution for Mining Wear Parts – Performance Enhancement & Quality Control

In the mining industry, wear parts operate under extreme impact and abrasive conditions, directly affecting equipment efficiency and operational costs. By combining steel quality control, material upgrade, advanced process innovation, and structural optimization, we provide a systematic solution to enhance product performance and service life

1. Molten Steel Quality Control: Pre-Casting Bending Test

Steel quality is the foundation for high-performance wear parts.

For this project, Mn18Cr2 high manganese steel samples underwent a 150° bending test at room temperature prior to casting. All specimens passed without cracks or defects (as shown in the test image).

Technical Significance

The bending test verifies:

 * Internal purity of the molten steel (absence of inclusions or pores)

 * Material ductility and toughness

 * Stability of the smelting process

Quality Assurance Result

Only steel passing the bending test proceeds to casting, ensuring:

 * Consistent Mn18Cr2 chemical composition

 * High steel purity

 * Excellent impact resistance and reliability

2. TiC Reinforcement Technology: Achieving Abrasion Resistance Leap

On top of traditional high manganese steel, we developed an in-house Titanium Carbide (TiC) reinforcement process, significantly enhancing wear part performance.

Process Principle

 * TiC particles are embedded in the Mn18Cr2 matrix

 * Forms a composite structure: ductile metal matrix + ultra-hard ceramic phase

Performance Advantages

 * Significantly improved wear resistance

 * Enhanced impact-abrasion performance

 * Slower material degradation

 * Extended service life

Metallographic & Microstructural Verification

 * Uniform TiC particle distribution

 * Strong metallurgical bonding with the matrix

 * Stable and reliable microstructure for real working conditions

3. Data-Driven Validation: Material & Process Performance

We compared conventional high manganese steel, Mn18Cr2, and TiC-reinforced Mn18Cr2 based on experimental data and industry research:

Material Performance Enhancement

 -Mn18Cr2 vs Mn13 steel:

    Stronger work-hardening capability

    Surface hardness after impact: 700+ HV (Mn13: ~600 HV)

    Balance of high hardness and toughness

TiC Reinforced Material

TiC particle hardness: >3× base steel

Wear resistance improvement:

   Laboratory: ~2.5×

   Field conditions: 3–5×

Comprehensive Comparison Table

Economic Impact:

Reduced replacement frequency

Decreased downtime

Lower maintenance cost

Total Cost of Ownership (TCO) reduction: ~30%+

4. Structural Optimization: Jaw Plate Design Improvement

Beyond material innovation, structural design is crucial for performance.

Customer Challenge

Original jaw plate design: 10-inch flattened teeth at both ends

Reduced effective crushing area, lowering efficiency

Customer request:
👉 Restore full corrugated teeth across the surface

Our Solution

Redesigned tooth profile

Restored continuous corrugated structure

Optimized force distribution and assembly compatibility

Optimization Benefits

Increased effective crushing area

Improved material grip and crushing efficiency

More uniform wear distribution

Enhanced assembly stability

5. Metallographic Analysis: Microstructure Verification

We conducted systematic metallographic analysis to validate material reliability and explain performance improvements:

1. Mn18Cr2 Matrix

Typical austenitic matrix

Uniform grain size, minimal segregation

Dense microstructure with low impurity content

Conclusion: High steel purity and excellent toughness, consistent with bending test results.

2. TiC Reinforced Composite

Dark particles represent TiC phase

Evenly dispersed throughout the matrix

No agglomeration or segregation

Key Observations:

Controlled particle size and uniform distribution

Strong metallurgical bonding, no delamination risk

Stable microstructure ensures reliability under extreme conditions

3. Wear Mechanism

Austenitic matrix absorbs impact energy

TiC particles resist abrasive wear

Forms a synergistic impact-abrasion mechanism

4. Post-Wear Analysis

Conventional Mn18Cr2: deeper wear grooves, more plastic deformation

TiC-reinforced Mn18Cr2: more uniform wear, reduced groove depth, TiC particles block wear propagation

Recommended Display:

Figure 1: Mn18Cr2 matrix microstructure

Figure 2: TiC particle distribution

Figure 3: Interface bonding micrograph

Figure 4: Before/after wear comparison

Conclusion

This case demonstrates our comprehensive capability in mining wear parts:

✔ Steel quality control (bending test)
✔ Material upgrade (Mn18Cr2 high-performance alloy)
✔ Process innovation (TiC reinforcement)
✔ Engineering optimization (jaw plate design)

We provide not only products but quantifiable performance improvement and cost-saving solutions, enabling customers to achieve:

Longer service life / Higher production efficiency / Lower operational cost

📩 Call to Action

For customized, high-performance mining wear parts solutions and technical support, contact us today.