초록 ▼

The method of joining a coupling member to a pipe end is described. The method is particularly concerned with providing a coupling member on the end of a pipe of composite construction formed from a plurality of helically wound reinforcement strips of steel. The method comprises the steps of forming

The method of joining a coupling member to a pipe end is described. The method is particularly concerned with providing a coupling member on the end of a pipe of composite construction formed from a plurality of helically wound reinforcement strips of steel. The method comprises the steps of forming at least one generally circumferentially directed groove in the outer surface of the pipe wall adjacent the end of the pipe to a depth extending into the reinforcement core, providing a coupling member adapted to fit the end of the pipe overlapping the region of the groove or groove, providing key means to extend between said sleeve and said groove in said pipe, providing a curable resin in the joint area between said pipe and said sleeve and curing said resin to bond said coupling member to said pipe end. The resultant coupling is of increased efficiency in providing both an adhesively bonded and mechanically coupled joint.

대표청구항 ▼

A method of joining a coupling member to the end of a rigid, non-flexible pipe, the method comprising the steps of: forming at least one generally circumferentially directed groove in the surface of the pipe wall adjacent the end of the pipe; providing a coupling member adapted to fit the end of the

A method of joining a coupling member to the end of a rigid, non-flexible pipe, the method comprising the steps of: forming at least one generally circumferentially directed groove in the surface of the pipe wall adjacent the end of the pipe; providing a coupling member adapted to fit the end of the pipe and overlapping the region of the groove; providing key means to extend between said coupling member and into said groove; providing curable resin in the joint area between the pipe and said coupling member; and curing said curable resin to bond said coupling member to said pipe end, wherein the pipe is of composite construction comprising a core formed from a plurality of layers of helically wound steel reinforcing strip embedded in a resin matrix, and the depth of said groove and said key means extends at least partially into the reinforcing steel core of the pipe.