A method for cold bonding of rubber and metal with negative pressure and special-shaped interface
Patent Information
- Application Number
- CN202610827251.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-09
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional cold bonding methods cannot apply uniform pressure to irregular rubber-metal interfaces, resulting in problems such as uneven adhesive layer distribution, insufficient bonding strength, and localized rubber deformation. This is particularly challenging in the repair and manufacturing of complex rubber vibration dampers.
A negative pressure cold bonding method for irregular rubber-metal interfaces is adopted. By drawing a vacuum under a flexible film, the adhesive is evenly distributed. Under the action of negative pressure, the flexible film adaptively fits the irregular curved surface, achieving all-round uniform pressure loading. The bonding process is completed at room temperature, and excess adhesive is discharged to ensure that the adhesive layer is thin and uniform.
It achieves uniform bonding of irregular rubber-metal interfaces at room temperature, eliminating problems such as uneven adhesive layer distribution, bubbles, and misalignment. The bonding strength is restored to more than 95% of the original design standard. It is easy to operate and low in cost.
Abstract
Citation Information
Patent Citations
Rubber and metal bonding method
CN118977429A
BR-g-MAH, vulcanized rubber composition with metal adhesion, and method for improving rubber and metal adhesion
CN120757710A