TVP (Materials)
Thank you again for the papers, i'll check them right away.
weldstan (Materials)
Right now, the furnace have only Nitrogen and Natural gas (below 800ºC (furnace manual)) as options. I apreciate your answers, but i was willing to go for atmosfere review as a last resort. As I...
TVP (Materials)
- We use only Nitrogen because it's a protective atmosfere only. Also, we can't use neither endogas nor methanol because at temperatures below 800ºC there is an explosion risk.
-Also, I think is relevant the mention that we cut the tube 7mm length, so they are pilled up in a...
TVP (Materials)
That's something i will try out. Thanks.
This explain why we got like 1,5mm decarburized layer in the ID and only 0,5mm on the OD. Luckily, we machine a lot from the ID, enough to avoid the decarburized layer, but not so much from the OD.
I runned some tests with oil and...
Tbuelna,
They use roll forming with high frequency induction welding on the tubes.
Since the tubes have small diameters, we analyze the whole transversal section (the laboratory operators cut the tube in half and preparate both samples for analysis). The images are from the opposite side of...
weldstan, EdStainless, metengr and tbuelna,
- We are only using Nitrogen as the atmosfere
- Just measure the dew point on the line, -10ºC. Is that reasonable?
- We use this to process OAD Pulleys (example...
Hello everybody,
I've been experiencing a problem with continuous furnace for annealing. The working cycle takes about 1,5h to reach its peak (750ºC (1-2 hours)), then decreases to 720ºC (5 hours).
In a particular sample, a SAE 1010 welded tube (6,3 mm thick, outer diameter 63,5 mm) , there is...
