Installation Damage
Description of O-RING Damage Analysis
This seal surface shows a cut knife edge.
左右尚有資訊| Cause | Suggested Solution |
| The seal is cut by a sharp groove or part. | An appropriate groove design |
| The raw material is contaminated during seal production. | Avoid sharp parts. |
| Seals with inferior quality or excessively low hardness. | Use seals with sound quality or higher hardness. |
PollutionInstallation Damage
O-RING Damage Descriptive Analysis
Contaminants appear on the seal surface or on the burr part.
| Cause | Suggested Solution |
| Adverse processing environment, raw materials, personnel, etc. | Note details of the contaminant class, including manufacturing and packaging, on the package. |
| The mold is not maintained and cleaned as scheduled. | Molds are produced by rubber materials. Mixed use is not allowed. |
| Synthetic rubber actions cause aging or deterioration. |
Explosive Decompression
O-RING Damage Descriptive Analysis
The seal surface shows bubbles, roughness and unevenness, holes, etc.
| Cause | Suggested Solution |
| A drastic increase or decrease in temperature | Use seals with sound quality or higher hardness |
| Seals with inferior quality or low hardness | Slowly ascending or descending air pressure |
Outgassing
Description of O-RING Damage Analysis
The seal shows the seal cannot be completely sealed.
| Cause | Suggested Solution |
| The seals used are not suitable for grooves. | Avoid use seals with high plasticity. |
| The seal is in a high vacuum environment with pressure and temperature. | Carefully select sales. Do not purchase products priced too low. |
| Seals with low hardness and high plasticity. | Ensure that the seal size is suitable for the prove to avoid gas leakage. |
| Inadequate seal processing time. | Correctly calculate the temperature and pressure ratio. |
| Select the correct materials. |
Overcompression
Description of O-RING Damage Analysis
This seal shows the seal presenting a groove-like plane shape due to overcompression, which causes cracks to appear on the seal surface.
| Cause | Suggested Solution |
| Overcompression | The seal design should take resistance to heat and chemical reactions into consideration. |
| The seal design ignores resistance to heat and chemical reactions. | Instead of exerting an excessive force to force install, apply moderate force. |
| The seal is in a high vacuum environment with pressure and temperature. |
Thermal Degradation
Description of O-RING Damage Analysis
The seal surface shows cracks and workpiece adhesion under high temperatures.
| Cause | Suggested Solution |
| Seals under an overheated environment. | Use seals with thermal stability. |
| The seal surface is overly smooth. | Select matt-treated seals. |
Compression
Description of O-RING Damage Analysis
The seal surface as a flat cross section.
| Cause | Suggested Solution |
| Overcompression | Switch to seals with a higher degree of compression. |
| A drastic increase or decrease in temperature | Increase the seal hardness. |
| Seals with inferior quality or manufacturing processes lacking stringency. | Ensure the seal quality. |
Extrusion
Description of O-RING Damage Analysis
This seal surface shows torn edges in the inside diameter under low pressure.
| Cause | Suggested solution |
| Overcompression | Seals with sound quality or higher hardness |
| Seals with inferior quality or excessively low hardness. | An appropriate groove design. |
| Seals larger than the groove. | Seal processing time should be adequate. |
| Grooves irregular or sharp in nature. | Carefully select seal. Do not purchase products priced too low. |
| The seal surface has gaps. |
Abrasion
Description of O-RING Damage Analysis
The seal has been compressed horizontally, and the surface has abrasive dust.
| Cause | Suggested solution |
| Seals with surface roughness and unevenness | Apply a suitable amount of lubricant on the seal to reduce friction. |
| Seals subject to abrasive dust. | Minimize installing seals on inferior grooves. |
| The groove shifts or inferior groove design of seals. | Carefully select seal manufacturers and have a knowledge of seal sources. |
| A drastic increase or decrease in temperature. |
Spiral Failure
Description of O-RING Damage Analysis
The seal surface has cut and spiral marks.
| Cause | Suggested solution |
| Seal joint lines are irregular or have rough and uneven surfaces. | Correctly install, lubricate and design seals. |
| No suitable lubricant when setting up seals. | Use seals with sound quality and higher hardness. |
| Design an excessively small groove. | Strengthen technician training. |
| Set up sealers in the horizontally-shifting groove. | Sealers with inferior quality or lower hardness. |
| Technicians with poor installation skills. |
Plasma Degradation
Description off O-RING Damage Analysis
The seal shows discoloration. The surface has erosion damage and powder residues.
| Cause | Suggested solution |
| Chemical ions impacting electrons. | Use seals resistant to electrons and ions. |
| An inferior groove design. | Check the groove design to defy plasma degradation. |
| The chemical properties of seals and processes are incompatible. | Use products that can resist certain chemical properties. |
