All true to My Memory! I did "Passivation" all over for a Co from Downey in the 90's it was all FDA "Food Grade" and this was Long before Woke and the earth heating Global Warming was a thing.
@@polesstainlesspemula1541 I think there was a passivation paste with 13% HF but I don't know for sure. We quickly abandoned that process because of toxicity or outsourced it.
I want to make blue chromating in base trivalent but hight resistane of corrotion
Can you explain for how much hours salt spray stands for after passivation ? Material Grade is SS 430.
2hour I think
Maaf kalo boleh tau takaran acid dengan hf dan air untuk bagian tembusan dalam stainless berapa persen y terimakasih
how did we can passivate surgical instruments with citric acid at home ???????
All true to My Memory! I did "Passivation" all over for a Co from Downey in the 90's it was all FDA "Food Grade" and this was Long before Woke and the earth heating Global Warming was a thing.
Hi sir
Wow, when I started 7 years ago we used a mixture of Nitric and HF Acid.
Hy apa anda tau takaran acid hf dan air untuk memebersihkan bagian dalam stainless tembusan lasan dalam
Please
@@polesstainlesspemula1541 I think there was a passivation paste with 13% HF but I don't know for sure. We quickly abandoned that process because of toxicity or outsourced it.
Ok thank you
Yes, Nitric, Formic, HCL, Phosphoric them all, but Mostly Citric! depended on the job,customers need, time alowed, environment of job?