Preparation method of resin transferred moulding cross-winding valve well


Application Number: 00108829
Application Date: 2000.05.12
Publication Number: 1272575
Publication Date: 2000.11.08
Priority Information:
International: E03F5/00
Applicant(s) Name: Yue Hongjun
Address:
Inventor(s) Name: Yue Hongjun
Patent Agency Code: 13100
Patent Agent: cai jiancheng
Abstract A preparation method of valve well with special-purpose for water supply and sewerage works includes the following procedures of preparing mould arrangement, making well body, making bottom plate, assembling, making winding layer and making ring rib reinforcement. Said invention solves the defects of existent products which are poor in corrosion resistance, high in cost and easy to be expanded and damaged in winter, etc., and possesses the advantages of simple preparation process, light product weight, resisting corrosion, convenient erection and high in resistance to external static soil pressure.