|
| Weight
control and tube identification is made.
A continuous ultrasonic control checks the thickness of the tube. |
|

Hotshaping
|
The ends of the tube are
heated in an induction heating, the base and the
bottom are shaped by the "Spinning"
method.
A heat treatment sets the requested characteristic
like hardness and elongation. |
|
Brinell hardness control is made in accordance with EN
10003-1.
|
|
Hydraulic test |
Necks are machined by a
multi-axes machine and afterwards each neck is
checked.
A water capacity control and the hydraulic test are made
to assure no leaks. |
|
After drying the cylinders, the inner and the outer surfaces are
cleaned again by
shot-blasting.
Each manufacturing step is controlled. When the cylinder is totally
manufactured, the inner and the outer surface, the bottom and
the neck are checked to assure the quality of the product.
|
|
Painting
|
The exact cylinder weight
is obtained. Marking is made in accordance with
the regulations.
The cylinders are painted and the accessories are
fitted. (valve and bottom). |
|
The cylinders are packed individually for a safely transportation.
Big batches are delivered in pallets and externally
plastic wrapped. |
|

Pallet |

Plastic wrapped
|
|
Back
|