Plate Curing and Steam Cure:

Innovating the Lead Acid Battery Industry with Mathematics

Why do plates need to be cured?

Curing chambers have the task of finishing the oxidation of free lead lead remaining in the production of plates.

1. Until the 1970s, jute bags were used to increase humidity and therefore continue the oxidation process of the remaining lead.

2. Subsequently, the first rudimentary curing chambers were created, chambers made of concrete with fans, heaters and water generators, with the task of accelerating the curing processes of the plates, because with jute bags it took a long time.

Problem:

with the water spray the plates did not have a homogeneous oxidation process, which is why they could come out with stains or non-oxidized spots.

Then start doing Research and Development.

Steam Cure Technology:

We arrive in the 90s with the first tests with steam instead of water.

CAM, together with Magneti Marelli, develop the first steam curing chamber heads.

Thanks to steam as a humidity generator, and horizontal laminar flow,

homogeneously oxidized plates are obtained.

The result is homogeneous plates, with free lead < 3% and residual humidity < 1%.

I’ll step back.

But why is steam better than nebulized water?

Because it is a simple mathematical calculation.

The density of water at 100 °C is 958 kg/m3

The vapor density at 107 °C is 578 kg/m3

This is why a vapor particle goes inside each plate pore compared to the water mist particle, which is why it is almost half as much.

When you have to choose a line of curing chambers, remember this little calculation.

3% free lead is just bait,

if you don’t oxidize each plate evenly,

especially if placed horizontally.

If you want an example of a CAM curing chamber CLICK HERE

If you are considering the right curing chamber for your process,

please choose between these three models:

If you want to receive the CAM BOX, a box of technical information, click here