Four types of titanium welded pipe processing methods

December 01, 2022

Titanium welded pipe processing generally have the following four methods.

　　 1, the pressure piece of welded titanium pipe: the titanium pipe and multi-seam “shrimp” type compared to the weld is correspondingly less, but the more complicated the pressure piece process, the need for a large number of molds, consume materials and processes, the weld also affects corrosion resistance, the appearance is not ideal.

　　 2, more weld type (commonly known as “shrimp waist” type) Titanium Tube: its processing technology is complex, usually used to cut the tube into a number of beveled, welded or plate into a number of sections under the unfolding of the material, and then rolled and welded, this method of more corner remnants, weld seams are large. Because the weld will greatly reduce the corrosion resistance, easy to leak, and poor appearance, the inner surface of the folded surface, increasing the pipe transmission resistance and increase the back of the scouring corrosion and reduce the life.

　　 3, stamping titanium welded pipe: the appearance of this titanium pipe and push titanium pipe seems to be no difference, but the process is the billet in the punch song on the stamping die stamping mold, molding process of titanium pipe back pull, and forced the back of the thinning, the inner wall of the pipe pressure and thickening caused by the wall thickness is not uniform or wrinkled, and the use of titanium pipe back to withstand the erosion of corrosion, due to the back of the thin wall is easy to early loss, so that the overall life of the pipe is greatly reduced.

　　 4, cast titanium tube: although no seam titanium tube, but the wall thickness (at least 5mm) and pipe wall thickness (2mm ~ 4mm) can not be matched, thus increasing the transmission resistance, and poor surface finish, the more important thing is that there are a large number of internal defects produced by the manufacture of pores, etc., seriously affecting the corrosion resistance and life.

　　 Above several kinds of titanium tube is far from meeting the current requirements, and push the introduction of titanium tube, the reason why it is quickly accepted by the user and welcomed because push the titanium tube has its own characteristics.

　　Titanium welded pipe processing is seamless titanium pipe as a billet, in the special pusher extruder using a pipe diameter smaller than the finished caliber of the billet pushed extrusion molding, in the forming process, the billet expansion. Stress analysis shows that different parts of the stress is different, but in the two-way compression, that is, axial compression, radial compression and circumferential tension, the stress has been in the tensile state.

Author:

Mr. Shen

E-mail:

shenguanlun9696@gmail.com

Phone/WhatsApp:

+86 13709173123