Recent content by sk1nner

  1. S

    HF pliers quality

    i have these http://www.harborfreight.com/2-piece-11-inch-straight-90-angle-long-reach-pliers-33203.html i like them, they do flex when you twist them, but for long reach they are ok. a buddy of mine has the craftsman equivalent and he said mine are beefier than his.
  2. S

    The Harbor Freight PASS/FAIL Thread...

    Heavy Duty Degreaser- PASS http://www.harborfreight.com/1-gallon-heavy-duty-degreaser-42998.html I mixed up a ratio of 1 gallon water to 1 cup degreaser, let the parts sit over night. Worked well IMO before and after pics of an intake mani I literally put the intake in and pulled it...
  3. S

    why industrial(black oxide)

    As i said HCL and cyanide don't mix well.
  4. S

    why industrial(black oxide)

    I have enough to know how to work with my plating bath, I'm not going to argue this. If you don't believe (or trust) what I have learned from working with the stuff for years, that's fine, I guess you know every thing there is to know about plating, good for you. Have a nice day.
  5. S

    why industrial(black oxide)

    HCN gas is produced when acid (such as hydrochloric) is mixed with cyanide. The hydrogen produced during the actual plating (in the plating tank) does not carry much (if any) cyanide with it.
  6. S

    why industrial(black oxide)

    That could very well be. If the base metal is hard it has a tendency to hold the hydrogen. That was hydrogen you saw coming from the part being plated. Part is cathode (negative) other electrode was anode (positive). Even a cyanide cad bath creates hydrogen though, that is what we use in my...
  7. S

    why industrial(black oxide)

    This may be the case with what we process at my shop. As i said i work in the Aerospace aspect of plating, where EVERYTHING we process is high strength steels. It would just seem to me that good quality tools would be made of high strength materials, but i guess i was thinking that it was...
  8. S

    why industrial(black oxide)

    PH has nothing to do with it. As an example cadmium plating is done at a very low PH and still creats hydrogen embrittlement. Nadcap mandates that we have to do H/E testing even on black oxide, and there are times that it fails. Say what you want, but with working in the field for many years...
  9. S

    why industrial(black oxide)

    Ok, Ill give you some perspective on this from a platers stand point. No the black oxide finish does not have a better resistance to rusting, copper/nickel/chrome (standard chrome plating) will resist rust for alot longer a salt spray cabinet can and will confirm this. Yes black oxide does...
Top Bottom