Heat Build-up (Hysteresis): Solving Internal Overheating in Solid Tires.

Here’s the technical analysis in strict HTML format:

Problem Statement: Heat Build-up (Hysteresis) in Solid Forklift Tires

Solid rubber tires experience internal temperature spikes (>120°C) under continuous load cycles, leading to premature cracking and delamination. Root cause: Excessive hysteresis from low-dispersion carbon black and non-optimized polymer network.

Material Science Analysis

• Failure Mechanism: Conventional NR/SBR blends exhibit high tan δ values (0.25+ at 60°C), converting mechanical energy into heat.
• Solution: RubberQ's custom compound uses 60% EPDM (low hysteresis), 30% NBR (oil resistance), and 10% graphite filler (thermal conductivity: 120 W/m·K).

Technical Specifications

• Shore A Hardness: 75 ±3 (ISO 7619-1)
• Tensile Strength: 18 MPa (ASTM D412)
• Elongation at Break: 350%
• Temperature Range: -40°C to +140°C (continuous)
• Compression Set: 15% (22h at 100°C, ASTM D395)

Parameter	RubberQ Custom Compound	Standard NR/SBR Blend	Alternative: FKM
Heat Build-up (ΔT after 1h @ 1MPa)	22°C	48°C	15°C
Cost per kg (USD)	5.80	3.20	32.00
Chemical Resistance (ASTM D471, 70h in Oil IRM903)	Volume Swell: +8%	Volume Swell: +25%	Volume Swell: +2%

Standard Compliance

RubberQ's IATF 16949-certified process includes:

• XRF spectroscopy for filler content verification (±0.5% accuracy)
• Monsanto rheometer testing (TS2, T90 control within ±5 seconds)
• Adhesion testing per ASTM D429 (Rubber-to-Metal >45 N/mm)

For custom material compound development or IATF 16949 documentation, consult RubberQ's engineering department.