Joining assembly and joining method of slope formed composite plastic tube and shaft joint member

摘要

The present invention is devised to, in connecting a composite-material plastic pipe with a slope formed on a joint unit to a shaft joint member such as a metallic flange, make it much simpler and easier to manufacture a slope joint part and provide a firm bonding between the slope joint part and the shaft joint member. To this end, in an assembly for bonding a shaft joint member which comprises a pipe molded by using composite-material plastics with a downwardly inclined slope section formed on a joint unit, a duct unit made of metallic materials and inserted into the joint unit, and a hub unit formed on one end unit of the duct unit, the bonding assembly comprises: a tube block which is placed on an outer circumferential surface of a mandrel when the pipe is being molded, has an inclined surface formed to make it possible to mold the slope section, and is placed on the joint unit even after the pipe is molded; a plurality of first assembly holes and a plurality of first attachment material entry/exit holes formed on the joint unit; a plurality of second assembly holes and a plurality of second attachment material entry/exit holes formed on the tube block to be connected to the first assembly holes and the first attachment material entry/exit holes by corresponding to them, respectively; a plurality of third assembly holes formed on the duct unit to be respectively connected to the second assembly holes; a fastening member installed through the first assembly holes, the second assembly holes, and the third assembly holes to engage the pipes, the tube block, and the shaft joint member with each other; and a first sealing unit placed along an outer circumference of the other end unit of the duct unit to make it possible to form and make a space airtight, on which an attachment material can be spread between an inner circumferential surface of the tube block and an outer circumferential surface of the duct unit.