Corrugated pipe extruder - GIF

[Altair]

Corrugated pipe extruder.




Previously:

Spin casting concrete drainage pipes - GIF
Joining PVC pipes - GIF
Transporting pipe section on existing pipeline - GIF
Relining an old pipe - GIF
Pipe fusion machine - GIF

[Hoosiersmoker]

Love to see the business end of that! Is the inner mandrel "corrugated" too? or does it end up a smooth bore?

[Frank S]

Love to see the business end of that! Is the inner mandrel "corrugated" too? or does it end up a smooth bore?

It could be that there is no inner mandrel, just a bunch of high-pressure spray nozzles

[piper184]

You can get pipe like that in both single layer ribbed inner surface and double layer smooth liner. Don't know how they do it though.

[nova_robotics]

I do a lot of work in wood products and OSB. Most of the OSB you buy is made on a continuous press. Very similar in principle to this pipe extruder.

[Toolmaker51]

Now, that's a innovative molding technique!
Though if spraying is involved, it's not really molding, but forming. Additive yes, but still closely related work such as turning with form tools, which is subtractive.

[hemmjo]

It could be that the proceeding process extrude a smooth wall pipe. That pipe while still hot would then be continuously blow molded in the corrugation section.

Just my imagination making the tooling.