Is This Safe? Second Try.
My second try at this with an edited actual picture of the scene.
You ever see something that just looks "not good" to you, but you can not put your fingers on exactly why?
The other day at a customer I saw a control for a hoist. It is zipped tied in three places to a fixture on top of an aluminum manifold being machined. My first thought was I have a flexible electric cord "permanently attached to a structure." But the cord is a controller for a hoist which may be "dangled". I cannot find any reference to tying it down.
The controller and cord for the hoist were covered in cutting oil from the machining process. I thought I should check the SDS of the oil to see if we are good with 1910.303(b)(6). Also, the oil appears to be solvent based not water based but could a short cause a problem or a break in the cord.
I do not like the picture but cannot figure out exactly why! To me it "looks" bad, but? What do you think?
Thanks!
Comments (11)
Is it being used in that position? Or is it stored there? The shackle is what throws me off as far as where it's secured to.
The fixture pulls the manifold off the machine. This machine is an air-pressure tester checking for porosity after the face is machined. Immediately behind the machine are several CNCs that machine the aluminum manifolds. I should probably ask why the controls are
secured to the fixture in the first place. This makes no sense to me. Never seen anything like it.
This in an aluminum manifold. The main reasons for porosity in foundry and casting are: #1 Lose sand in the mold. Improper mulling process in the sand, to little "Green Strength" in the sand, or #2 The temp of the metal us is usually to cold when "tapping" (pouring) the mold, rarer can be caused by the metal being to hot. At least that are the reasons in ferrous, non-ferrous I am far from and expert, I served my time in iron. Casting technology has really improved since the 80s. Aluminum sand molding was very rare till the 90s. They used Die Casting mostly before that. Iron was always in sand. Sand molding process is cheaper and with the new technology die casting is rare now in aluminum. But sand also causes more quality issues. Porosity being high on the list!
Then there is lost-foam molding which I could write a book, that replaces "sand" cores. More sand you get out of the process the better!