Patent ID: 6230747
Filing Date: 2001-05-15
Classification: B23K,F16L,F25B

Abstract:
A pipe connecting method comprising:fitting a block plug (50) made of a film of brazing material to a connecting portion (42) continuously located on at least one end side of a main portion (41) of a pipe (40) formed in a specific length such that the outer periphery of the block plug (50) adheres closely to the connecting portion (42) thereby defining the inside and outside of the pipe (40);inserting a connecting portion (42) of a different pipe (40) into the connecting portion (42) of the pipe (40) to contact the block plug (50) fitted to the pipe (40) with an end of the different pipe (40); andexternally heating the connecting portion (42) of the pipe (40) to melt the block plug (50) thereby jointing both the connecting portions (42) of the pipes (40) through the block plug (50).