Vibration Reduction Technology In Epoxy Resin Sleeve Pouring At Construction Site

Many electrical engineers, when handling substation equipment installation, often focus more on insulation parameters, easily overlooking the mechanical stress at the physical level. epoxy bushing manufacturer If minor vibrations in the operating environment are not properly handled after the on-site pouring is completed, the long-term accumulated fatigue stress will cause cracks in the insulation layer that are difficult to see with the naked eye. These cracks are a potential cause of partial discharge.

Flexible Support Layout in the Initial Pouring Stage

During the mold assembly stage, damping buffers need to be pre-embedded at the connection points between the base and the support. Compared to rigid fixing, using composite rubber gaskets can dilute stress fluctuations generated during pouring. Through this pre-designed buffer structure, the epoxy resin sleeve can obtain a relatively stable deformation space during the exothermic curing reaction. This method not only counteracts the resonance caused by the operation of large machinery around the construction site but also improves the molecular arrangement stability of the material during curing shrinkage.

Flow Dynamics Control During Pouring

Controlling the pouring speed is key to preventing air bubble accumulation and reducing vibration sensitivity.

• Layered Pouring Technology: Employing a low-level feeding and slow-rising strategy.

• Physically Assisted Venting: Without compromising the mold's seal, low-frequency, slight disturbances induce the rise of tiny internal air bubbles.

• Dynamic Temperature Balancing: Regulating the ambient temperature maintains the epoxy resin sleeve material within its optimal flow viscosity range.

This operational logic reduces cavities caused by fluid disturbances through physical means, thereby improving the structural damping performance of the finished product during subsequent operation.

Long-Term Reinforcement Solutions for Operating Environments

Subsequent mechanical support design is equally crucial. For high-frequency vibration areas, it is recommended to add flexible compensating joints at the flange connections of the epoxy resin sleeve. This can prevent vibrations from the transformer or reactor from reaching the insulation components.

Stress Dispersion at Flange Connections

Secondary reinforcement is applied to the flange's contact surface with the wall or cabinet using a specialized epoxy sealant. This fills tiny gaps, allowing the epoxy bushing for transformer to form a unified structure with the mounting base, eliminating impact stress caused by gaps. Using high-strength, non-magnetic bolts for symmetrical cross-tightening further evens the stress distribution, reducing the negative feedback from vibration from a structural perspective.