Pressure measurement film is widely used across various industries to evaluate contact pressure distribution, sealing performance, and load uniformity. Its ability to provide a direct visual representation of pressure makes it an effective tool for both testing and process optimization.
This guide introduces typical application scenarios and measurement methods in different industrial fields.
Automotive and Mechanical Applications
Engine Cylinder Gasket Inspection
Pressure measurement film is used to verify the sealing pressure between the engine block and cylinder head.
Measurement method:
Place the film on both sides of the gasket, assemble the components, and tighten the bolts. After disassembly, observe the developed pattern.
Key evaluation points:
- Uniform color distribution around the sealing area
- No gaps or low-pressure zones
- Pressure values within the specified range
Recommended film types:
High-pressure (HHS), high (HS), and medium-pressure (MS/MW)
Brake System Contact Analysis
Pressure film can be placed between brake pads and friction surfaces to evaluate contact pressure during operation.
Key evaluation points:
- Sufficient contact area
- Uniform pressure distribution under different braking conditions
- Consistency after repeated use
Recommended film types:
Low-pressure (LW), ultra-low pressure (LLW)
Clutch Plate Pressure Distribution
Used to analyze contact uniformity between clutch plates under different operating speeds.
Key evaluation points:
- Uniform pressure distribution
- Stable contact area under varying load conditions
Recommended film types:
LW, LLW, LLLW
Sealing and Joint Applications
Oil Pan and Sealing Surface Inspection
Pressure film is used to verify sealing performance in areas prone to leakage.
Measurement method:
Place the film at the sealing interface, tighten bolts, and observe the color pattern.
Key evaluation points:
- Continuous and uniform pressure around the sealing area
- No low-pressure leakage zones
Recommended film types:
LW, LLW
Packaging Seal Integrity Testing
Used to evaluate sealing pressure in packaging systems.
Key evaluation points:
- Uniform pressure along the sealing line
- Pressure meets specified sealing requirements
Recommended film types:
HS, MS/MW
Tire and Contact Surface Applications
Tire Contact Pressure Analysis
Pressure measurement film can be used to evaluate the contact area between tires and the ground.
Measurement method:
- Place the film on the ground
- Apply load or simulate movement
- Observe the contact pattern
Key evaluation points:
- Contact area size
- Pressure distribution uniformity
- Influence of speed, load, and environmental conditions
Recommended film types:
LLW, LLLW
Safety and Impact Testing
Airbag and Collision Testing
Pressure film is used in impact tests to record pressure distribution between the airbag and surfaces.
Key evaluation points:
- Impact contact area
- Peak pressure zones
- Load distribution during collision
Recommended film types:
LLW, LLLW, HS, MS
General Selection Guidance
Across all applications, selecting the correct pressure range is essential:
- Use higher-range films for mechanical load testing
- Use lower-range films for sensitive contact analysis
- Match the expected pressure to the middle of the film range for best results
Proper selection improves both visibility and accuracy of pressure measurement.
Conclusion
Pressure measurement film is a versatile tool used in automotive, mechanical, sealing, and safety applications. By selecting the appropriate film type and applying correct measurement methods, users can accurately evaluate pressure distribution and optimize product performance.
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