A three eccentric plastic lining butterfly valve plate plastic lining forming die
By designing a dedicated mold for molding the lining of a triple-eccentric butterfly valve plate, high-precision and high-density lining molding of the valve plate was achieved, solving the lining molding problem in the existing technology, adapting to the requirements of highly corrosive working conditions, and expanding the application scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Liupanshan Laboratory
- Filing Date
- 2026-05-21
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, it is difficult to realize the plastic lining molding technology for triple eccentric butterfly valve plates, especially for DN200 triple eccentric butterfly valve plates, which cannot be adapted to plastic lining molding, thus limiting their application in highly corrosive working conditions.
A molding die for molding the lining of a triple-eccentric butterfly valve plate was designed. It adopts a main molding module and positioning components, including a pressure core, upper mold, middle mold, lower mold, main positioning shaft, and secondary positioning shaft, to achieve six-degree-of-freedom positioning of the triple-eccentric butterfly valve plate. The high precision and uniformity of the lining layer are ensured by a double-sided sealing structure and a composite venting system.
It achieves high-precision and high-density plastic lining molding of triple eccentric butterfly valve plates, with a product yield of over 95%, adapting to the needs of highly corrosive working conditions, expanding application scenarios, and solving the industry pain point that triple eccentric butterfly valve plates cannot be plastic-lined.
Smart Images
Figure CN122401934A_ABST