Hey guys, I have run into a stonewall here. I am having lots of dross on 1/8"pl. and not the others. I have changed my filters on the air dryers and changed the plasma torch, cleaned the leads, put new consumables and still a slew of dross on thin guage plates!!! On anything over 1/8" no dross at all!! I am lost at what to do here. Anyone have an idea? The dross is the worst kind kinda like high speed dross, the kind that takes a grinder to remove and is a B@*^% to work off. Man I am frustrated with this. Any help would be appreciated.
Plasma Joe
Dross
- BrianMick
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Re: Dross
IM Still trying to figure that stuff out myself , but if its highspeed dross wouldnt you slow down a bit ?
Brian
Brian
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- plasmajoe
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Re: Dross
It is slowed down even at half speed I get that crap on the underside. I have it figured out though. I put another 1/8"pl on my table and cut the darn thing perfect. Then I checked out the packing slip that came with the plates... yep you guessed it, made in ChinaBrianMick wrote:IM Still trying to figure that stuff out myself , but if its highspeed dross wouldnt you slow down a bit ?
Brian
![Surprised :o](./images/smilies/icon_e_surprised.gif)
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
Plasma Joe
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Re: Dross
Cheap steel, or steel produced in older technology mills, often has a high silicon content, and increases the chance of producing dross when plasma cutting. The higher silicone contenet somehow affects the surface tension of molten metal, which causes it to hang on to the bottom of the plate until it solidifies. The oxygen plasma cutting process can usually cut this material without dross.
Jim
Jim
- elkriverfab
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Re: Dross
Plasmajoe..........
It's happening to you too!
I'm not going crazy after all
Imagine every sheet you buy cuts like that!
Just yesterday I was cutting and it acts as if the ground is removed.
Put on a different sheet and it cuts perfect.
It's a huge waist of material not being able to cut it.
You Canadians send that stuff back to the supplier!![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
I cant figure out what the stuff is worth if you cant use it for what it's made for!
It's like going to the gas station and paying to pump water in your vehicle![Laughing :lol:](./images/smilies/icon_lol.gif)
It's happening to you too!
I'm not going crazy after all
![Shocked :shock:](./images/smilies/icon_eek.gif)
Imagine every sheet you buy cuts like that!
Just yesterday I was cutting and it acts as if the ground is removed.
Put on a different sheet and it cuts perfect.
It's a huge waist of material not being able to cut it.
You Canadians send that stuff back to the supplier!
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
I cant figure out what the stuff is worth if you cant use it for what it's made for!
It's like going to the gas station and paying to pump water in your vehicle
![Laughing :lol:](./images/smilies/icon_lol.gif)
"OK, Now hold my beer and I'll try it"
- plasmajoe
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Re: Dross
LOL on the gas pump Shawn... Yep I send that s#@t back. It is the first time this has happened to me and I am not pleased at all. My supplier took it back and the plates I cut well attempted to cut and replaced everything with 2 sheets for my troubles. So all and all it worked out in the end, got the job done on time and go me some bonus steelelkriverfab wrote:Plasmajoe..........
It's happening to you too!
I'm not going crazy after all![]()
Imagine every sheet you buy cuts like that!
Just yesterday I was cutting and it acts as if the ground is removed.
Put on a different sheet and it cuts perfect.
It's a huge waist of material not being able to cut it.
You Canadians send that stuff back to the supplier!
I cant figure out what the stuff is worth if you cant use it for what it's made for!
It's like going to the gas station and paying to pump water in your vehicle
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
![Mad :x](./images/smilies/icon_mad.gif)
talk to you later Shawn and hey how is the pit coming along?
Plasma Joe
- BrianMick
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Re: Dross
luckily 99% of the steel we get is good old USA....... We pay more for it but I cant say we have many problems with it
Brian
Brian
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Re: Dross
I have run into this issue before .. Seems the metal i got that wasnt coated with very much oil had issues with excessive dross sticking to it .. i cut some stuff with rust on the underside there was almost no dross.when i cut stuff with rust on top dross is excessive.Never thought the metal itself could be the issue?