Tungsten Carbide Reverse Riveting Stop Block with Extreme Wear Resistance Ultra

Product Specification

Product Overview

The Tungsten Carbide Reverse Riveting Stop Block is a high-precision positioning and limiting component manufactured from ultra-hard tungsten carbide material, specifically designed for demanding riveting, stamping, assembly, and positioning processes. Featuring a unique "reverse riveting" structural design combined with the exceptional wear resistance, compressive strength, and corrosion resistance of tungsten carbide, this product provides a durable and stable limiting solution for high-frequency, high-load automated production lines, significantly extending equipment service life and improving process consistency.

Product Features

1. Extreme Wear Resistance, Exceptional Longevity

• Material Advantage: Utilizes high-grade tungsten carbide (WC-Co) with a hardness of HRA 90-92. Wear resistance is 50-100 times that of tool steel.
• Longevity Performance: Service life is increased by over 10 times compared to traditional alloy stop blocks under continuous impact conditions.

2. Ultra-High Strength, Stable and Reliable

• Compressive Strength: ≥4000 MPa, capable of withstanding extremely high impact loads without plastic deformation.
• Structural Stability: Special heat treatment and precision machining ensure dimensional stability with no micro-deformation during long-term use.

3. Unique Reverse Riveting Design, Precise Positioning

• Self-Locking Structure: The angled reverse riveting design creates a self-tightening effect upon impact, preventing loosening.
• Zero Rebound: Effectively absorbs impact energy, ensuring positioning repeatability within ±0.005mm.

4. Broad Environmental Adaptability

• Corrosion Resistance: Resistant to most oils, coolants, and mild chemical media.
• Temperature Resistance: Operating temperature range from -50°C to 800°C (short-term peak).

Technical Specifications

Product Structure

1. Main Structure

• Stop Face: Precision ground working surface ensuring contact flatness.
• Reverse Riveting Inclined Plane: 15°-30° self-locking angle design, optimized for different load conditions.
• Mounting Reference Surface: Provides precise mounting and positioning reference.

2. Mounting Methods

• Press-Fit Installation: Interference fit with base, requiring no additional fastening.
• Bolt Fixation: Pre-drilled mounting holes for replaceable applications.
• Modular Design: Can be integrated into quick-change systems.

Application Areas

1. Aerospace Manufacturing

• Aircraft skin riveting positioning
• Engine component assembly stops
• High-strength fastener installation

2. Automotive Industry

• Body welding fixture positioning
• Stamping die stop blocks
• Powertrain assembly positioning

3. Precision Electronics

• Semiconductor packaging equipment
• Precision connector riveting
• Micro-component assembly

4. General Manufacturing

• Automated assembly lines
• Stamping and riveting equipment
• High-precision fixture systems

Selection Guide

Standard Selection Process:

1. Condition Analysis: Confirm impact frequency, load magnitude, and environmental media.
2. Size Determination: Select based on installation space and required stroke.
3. Accuracy Selection: Choose accuracy grade according to process requirements.
4. Mounting Method: Select press-fit or bolt fixation based on equipment structure.
5. Special Requirements: Such as anti-magnetic, ultra-high temperature resistance, etc.

Customization Services:

• Non-standard sizes and shapes
• Special cobalt content adjustments
• Surface coating treatments (e.g., TiN, DLC coatings)
• Combined stop system design

Installation and Maintenance

Installation Notes:

1. Clean mounting holes to ensure they are free of oil, grease, and debris.
2. Use specialized installation tools and apply pressure evenly.
3. Check flatness and perpendicularity after installation.
4. Initial low-speed break-in operation is recommended.

Maintenance Recommendations:

• Regularly clean the working surface to prevent accumulation of hard particles.
• Check fixation status to ensure no loosening.
• Record usage hours to establish a preventive replacement schedule.
• Minor wear can be restored by professional regrinding (up to 2-3 times).