Large-tonnage disc-shaped suspension ceramic insulator and prestressing assembling device and method for same
US12354766B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 12, 2025 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Jan 12, 2045 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/84
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A large-tonnage disc-shaped suspension ceramic insulator includes a ceramic insulator body, and a metal pin and a metal cap coaxially assembled with the ceramic insulator body through adhesive material, assembly interfaces of the ceramic insulator body, the metal cap, and the metal pin are coated with a primer; the adhesive material includes an expansion agent; and the expansion agent is configured to make the adhesive material expand after hardening so as to create a prestress between the ceramic insulator body and the metal pin as well as the metal cap. The present disclosure achieves overall compressive prestress distribution of the ceramic insulator product, mitigating thermal stress caused by temperature changes and improving the tensile strength of the large-tonnage disc-shaped suspension ceramic insulator assembly. By treating the assembly interfaces with the primer, the present disclosure significantly improves the assembly strength of the ceramic insulator/metal assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.