English Views: 68 Author: Site Editor Publish Time: 2026-01-19 Origin: Site
Scientific Replacement Decision:Failure Diagnosis and Replacement Standard of Disc Spring and Wave Spring
The timely replacement of disc springs and wave springs is not only the final step in maintenance work, but also a critical decision point to ensure the continuous and reliable operation of equipment. Based on failure analysis theory and engineering practice, Jiangsu Sunzo has established a comprehensive operational system for you, covering everything from failure diagnosis to scientific replacement, ensuring that every replacement is precise and effective.
Cracks and fractures:
Surface microcracks (length>0.5 mm): Replace immediately
Penetrating crack: emergency shutdown and replacement
Fragmented pieces: Perform a comprehensive examination and replace all relevant springs.
permanent set ：
The variation of free height exceeds 50% of the design tolerance
Significant change in the cone angle of the disc spring
inhomogeneous spring wave peak height
Capacity decline:
The equipment output drops by more than 10% under identical operating conditions.
The pre-tension holding time is significantly reduced
Dynamic changes:
The vibration frequency characteristics have changed.
abnormally elevated noise level
risk grade | failure characteristic | response time | Replacement scope |
highrisk | Visible cracks, fractures, and severe corrosion | hard stop | Replace the entire set |
Medium risk | permanent deformation exceeding tolerance, performance degradation | planned stop | preventive replacement |
low risk | minor wear and surface degradation | maintenance routine | Selective replacement |
Geometric dimensions: outer diameter, inner diameter, thickness, and free height are controlled within half of the tolerance range specified by national standards.
Material consistency:
The same steel grade designation (e.g., 50CrVA)
Same heat treatment condition (hardness deviation ≤2HRC)
same surface treatment process
Load testing: Conduct sampling load tests on the new spring prior to replacement to ensure consistent force characteristics.
Batch traceability: Suppliers are required to provide complete batch traceability information for materials
Obtain complete spring technical drawings and installation specifications
Prepare specialized tools and measuring instruments
Develop a detailed work safety plan
Record the original installation status and location
Check the relevance of adjacent components
Image and data recording of failed springs
Strictly adhere to cleaning and lubrication standards
The working state is gradually achieved through a stepwise loading method.
Complete the functional verification test
We provide complete replacement solutions:
Emergency spare parts supply: Common specifications available within 48 hours
On-site technical support: Engineer provides on-site guidance for replacement work
Failure Analysis Laboratory: Provides professional failure cause analysis
Alternative proposal: Provide technical alternatives when the original specification is discontinued
Performance upgrade service: Synchronize performance optimization during replacement
Preventive replacement program: Develop long-term replacement planning
Spring Usage Records: Establish a complete spring usage history archive
Replacement Record System: Provides a digital replacement record management system
Life Prediction Service: Predicting Replacement Cycle Based on Usage Data
Scientific replacement decisions not only resolve immediate issues but also ensure long-term equipment reliability. With our professional replacement services, we guarantee your equipment's sustained performance.
