Liquid phase diffusion bonded pipe joint

摘要

A liquid phase diffusion bonded pipe joint comprised of metal pipes or a metal pipe and a joint pipe joined by liquid phase diffusion bonding, the liquid phase diffusion bonded pipe joint comprised of a metal joint provided with a tapered slanted part press-fit into an end of a metal pipe by a thrust in a pipe axial direction while expanding the metal pipe in inside diameter and tightly engaging with the end and a joining surface part continuing from the tapered slanted part and joined with an end face of the metal pipe by liquid phase diffusion bonding and a metal pipe tightly engaging with the tapered slanted part in the expanded state and with an end face joined with the joining surface part by liquid phase diffusion bonding.

主权项

1. A liquid phase diffusion bonded pipe coupling, comprising:
a steel coupling, comprising a tapered slanted part and a joining surface part, wherein the steel coupling is joined to a steel pipe, and the steel pipe having an axis; the tapered slanted part is press-fit into an end of the steel pipe along the axis of the pipe, such that the steel pipe inside diameter is enlarged, and the end of the steel pipe and the joining surface part of the tapered slanted part are tightly engaged; an end face of the end of the steel pipe and the joining surface part of the tapered slanted part are bonded by liquid phase diffusion bonding; and wherein the thickness of the enlarged end of the steel pipe, tightly engaged with the tapered slanted part, is greater than the thickness of the body of the steel pipe; and wherein the steel pipe inside diameter is larger than a minimum outside diameter and smaller than a maximum outside diameter of the tapered slanted part.