Analysis of performance characteristics and industry solutions of PTFE high temperature drying conveyor belt

Let us analysis of performance characteristics and industry solutions of PTFE high temperature drying conveyor belt!

1. Core performance characteristics
PTFE high-temperature drying conveyor belt is a core component in the field of industrial thermal processing. Its performance directly determines the production efficiency and product quality. The following is an analysis from four dimensions: temperature resistance, corrosion resistance, mechanical strength and functional integration:
Ultra-wide temperature range adaptability High temperature limit: Using Teflon (PTFE) and glass fiber composite materials, it can operate stably in the range of -196℃ to 300℃, and some products can withstand 400℃ high temperature. For example, the Teflon mesh conveyor belt runs continuously at 250℃ for 200 days without strength attenuation, and only loses 0.6% of its weight at 350℃ for 120 hours.
Low temperature flexibility: It can still maintain flexibility in an ultra-low temperature environment of -180℃, without the risk of brittle cracking, and is suitable for low-temperature baking and freeze-thaw cycle processes.
Chemical corrosion resistance Strong acid and alkali tolerance: It can withstand strong corrosive media such as aqua regia, concentrated sulfuric acid (98%), and sodium hydroxide (50%), and its life in chemical transportation scenarios is 3-5 times that of traditional rubber belts.
Non-toxic and non-precipitating: Complies with FDA 21 CFR 177.1550 standards, no risk of heavy metal migration in food processing, suitable for high-cleanliness industries such as pharmaceuticals and semiconductors.
High strength and fatigue resistance Tensile strength: Glass fiber substrate + PTFE coating structure, tensile strength can reach 900N/cm, elongation coefficient <5‰, suitable for heavy-load transportation scenarios.
Anti-bending fatigue: No breakage after 10⁶ bending tests, the minimum applicable wheel diameter is only 20mm, suitable for high-frequency start-stop equipment (such as printing and dyeing drying tunnels).
Functional integration Breathable efficiency: Mesh rate 40%-60%, hot air convection efficiency increased by 30%, shortening the process cycle by 25% in food drying, and reducing energy consumption by 18%.
Self-cleaning surface: PTFE non-stick layer increases the efficiency of removing resin, coating and other attachments by 80%, and shortens the cleaning time to 1/5 of traditional materials.
Fire retardant: Passed UL94 V-0 test, oxygen index>35, can effectively block the spread of fire during the baking of electronic components.
2. Industry Solutions
High-temperature drying conveyor belts have a wide range of application scenarios. The following analyzes its solutions from the four major industries of textile printing and dyeing, food processing, electronic manufacturing, and chemical environmental protection:
Pain points in the textile printing and dyeing industry: Printing drying, fabric shrinkage and shaping processes need to withstand high temperatures above 200°C, and traditional rubber belts are prone to aging and breaking.
Solution: Use Teflon mesh conveyor belts, which are resistant to high temperatures and bending fatigue and can meet the needs of high-frequency start and stop. The air permeability improves drying efficiency and reduces energy consumption.
Pain points in the food processing field: Baking, freezing and thawing processes must comply with HACCP certification, and traditional conveyor belts are prone to bacteria and difficult to clean.
Solution: Teflon conveyor belts are non-toxic, non-precipitating, and self-cleaning. They can withstand high temperatures of 250°C and are suitable for conveying baked foods such as bread and biscuits, and the cleaning time is greatly shortened.
Pain points in the electronics manufacturing industry: Lead-free reflow soldering and PCB board conveying require anti-static and high-temperature resistance, and traditional metal mesh belts are prone to electrostatic adsorption defects.
Solution: Use anti-static Teflon conveyor belt with a tensile strength of 895N/cm, a yield rate of 99.95%, and a 70% reduction in electrostatic adsorption defects.
Pain points in chemical and environmental protection industry scenarios: Exhaust gas desulfurization and garbage incinerator coatings need to be resistant to strong acid and alkali corrosion. Traditional materials have a short life and high maintenance costs.
Solution: Teflon conveyor belts are resistant to aqua regia corrosion, have a life of more than 3 years, and a 60% reduction in maintenance costs. They are suitable for chemical agent transportation, high-temperature incinerator coating and other scenarios.
3. Selection and maintenance guide
Selection points Temperature requirements: Select materials according to process temperature. For example, the basic model can be selected below 200°C, and the Kevlar enhanced model is required above 250°C.
Load requirements: For light-load scenarios (such as food packaging), select the 370g/m² basic model, and for heavy-load scenarios (such as chemical transportation), select the 600g/m² Kevlar enhanced model.
Process adaptation: Double weft structure is selected for high-frequency start-stop equipment, and the minimum wheel diameter is 20mm; Teflon turning film edging is selected for high-precision conveying, and the flatness error is <0.1mm.
Maintenance recommendations
Regular inspection: Check wear and clean surface impurities to ensure safe operation.
Cooling optimization: In high temperature environment, use air cooling or water cooling device to reduce surface temperature and avoid material softening.
Load control: Avoid overloading and overspeed to prevent overheating and damage of conveyor belt.