Posted by Determined on January 24, 2019 at 07:20:43 from (216.130.212.201):
In Reply to: Pipe Line update posted by JD Farmer on January 23, 2019 at 13:47:49:
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Just curious reading about the threading problem you experienced.
I am led to believe that once you switched lubricants the problem went away.
Was it believed that the brief surface exposure of the sulfur containing tapping fluid was enough for it to start migrating into the metal and lead to the failure, or was it possibly an issue of the extra lubricity of the high sulfur tapping fluid allowing the operator to be over aggressive when tapping the hole and stressing the surrounding material?
I have worked on tanker trucks that hauled sour crude and am well aware of the embrittlement long term exposure can cause, but I never would have thought such a brief low concentration surface exposure on something the size of what you were working with could have such an impact.
One would think with the amount of sulfur in fuel oil or even some anti seize compounds that are subject to long term exposure they would potentially have a much greater effect on metals.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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