| 摘要 |
<p>PURPOSE:To obtain a stainless steel pipe joint having a curved or branched flow passage in a short time by welding frictionally a round bar to a bar-shaped body orthogonally with the axial line thereof then machining the same. CONSTITUTION:A bar-shaped body 1 made of a stainless steel projected with shafts 4, 5 at both ends of a block-shaped cylindrical part 3 is prepd. A stainless steel round bar 2 with the end face thereof opposed to the body 1 is brought into press-contact with the side face in the cylindrical part 3 of said body under rotating the bar 2 around its axial line 2a in the state of intersecting the line 2a roughly orthogonally with the axial line 1a of the body 1 and is frictionally welded thereto, whereby a T-shaped weldment 6 is obtd. Such weldment 6 is subjected to machining such as cutting and form rolling of the outside part, piercing for forming a flow passage or the like, whereby a product such as a tee 7 is obtd. The stainless steel pipe joint is produced economically in a short time by the above-mentioned method.</p> |
