Drying of LPG Cylinders

What?

If this is really an issue, why not roll them through that 650°C oven again for a few minutes?

Because I have to wash off the burnt residues on the surface.

But water is burnt hydrogen. It can't burn any further.

How wet is the cylinder?

How dry is your air?

It's more about air velocity than flow.

How hot is the cylinder after washing.

Why not wash after stamping?

Why not do as Doorman suggests?

flow transducers could be used

Thank you for your thoughtful reply. What do you think about harley's idea?

It's a good idea. I liked it when lyn suggested it in #2.

This all boils down to your process... a rethinking of the order in which tasks are done may be called for.

If you are stuck with accelerating the water displacement after fabrication and washing (in that order), something like the blowers/dryers used in a tunnel car wash would be a good place to start looking.

How could I prevent corrosion after washing them and before sending them to the furnace? Thank you for your help

Wash/rinse in very hot water (maybe even steam), and dry with air/heat. As said before, something like a blower/heater that is used in a car wash may be useful.

I thought you said the furnace was after welding. No?

The process is:

1) Formation of parts with hydraulic press. Lubricant residue.

2) Welding of parts

3) Washing

4) Annealing in furnace

5) Shotblasting

6) Paint

From the original post:

Step one: "The halves are stamped... left with a thin layer of lubricant."
Step two (inferred) Welding
Step three: "After welding operations, the cylinders are taken to an oven to release tension at 650°C."
Step four: "After that, they are hydrocleaned with hot pressurized water. I need to dry them before blasting them for surface preparation."

To recap the original description of process:
1) Formation of parts with hydraulic press. Lubricant residue.
2) Welding of parts
3) Annealing in furnace
4) Washing

There is now some disjoint in the description of the process.

How about putting the wash cycle before the heating cycle?

I think that's a great idea! That way I don't have to spend on a dryer. What does everyone else think? Would this work?

Glass is washed and the rinse water is blown off with air knives. Air knife is nothing but a slotted rectangular chamber. The slot is at a slight angle from perpendicular to the glass. The angle against the travel of the glass. Air is from a high volume blower. The air is not heated.

Depending how many tanks you produce. A washer may be something to look into. Put them into one end. They get washed and dried and come out the other. Then put them in the oven.