Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations JAE on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. mrcasper

    Linear feet to quantity of welding rods estimation?

    Let me see if I can clarify y answering all your questions 1. 50% horizontal welding, 50% overhead 2. 40ft straight welding intervals (welding 40ft of pipe cut in half on to a plate for a total length of 120ft, welding on both sides of the resulting 1/2 sections or 'c' would be a total of...
  2. mrcasper

    Linear feet to quantity of welding rods estimation?

    I have 960 linear feet of welding to do. Is there a general rule of thumb for the amount/weight for a sigle pass of 3/16 welding electrode based on linear feet? Thank You
  3. mrcasper

    Lamp post close to the sea

    I'm thinking in the long term, the maintenance of the epoxy would be more practical to do in situ. Received a few quotes and the price for hot tip is 4 times as much as epoxy, meaning after the cost for 4 repairs, the cost of maintenance compared to hot tip would be an issue
  4. mrcasper

    Lamp post close to the sea

    Thank You Gentlemen
  5. mrcasper

    Lamp post close to the sea

    Epoxy is the way to go?
  6. mrcasper

    Lamp post close to the sea

    Well Trinidad has been spared alot of hurricanes. We wont be responsible for the maintenance just the installation, hence the issue of cost.
  7. mrcasper

    Lamp post close to the sea

    This may be a very newbie question but I have some lamp posts to install close to the sea. Do I have to go with hot tipped galvanisd steel or would epoxy coated steel suffice? Looking for a 2nd opinion, I'm cost driven Thank You
  8. mrcasper

    23lbs zinc anode spacing/location

    Good day, I need to place 23lbs zinc anodes on a barge. I'm going withe the convention Total surface area of anodes = 1% of wetted surface. Now that gives me the total surface area of anodes, 57sq ft, but how do i adequately space these anodes? is there a convention for this or a rule of...
  9. mrcasper

    Winch Losing Pressure

    It was a indeed an internal leak, the directional control valve was not suitable for a winch arrangement. We changed out the entire DCV & it was rated to 6.8T Sadly, there was no schematic diagram, the system has been modified numerous times (and not documented) that I didn't know what was...
  10. mrcasper

    Winch Losing Pressure

    We have a winch trying to certify to 6t. its making 6t but when the control is in neutral position its losing pressure causing a decrease in the load. I know its kind of broad questions but what could cause this?
  11. mrcasper

    Welding stainless steel onto mild steel

    The equipment would be subjected to repeated drops, of approx 150ft, average weight of 200lbs. All I require is that the weld doesnt break. Will call local supplier now. Thank You
  12. mrcasper

    Welding stainless steel onto mild steel

    Hello, How practical is it to weld a 36" stainlees steel strip 1/4" thick onto a mild steel plate 1/4" thick along the edge? Are there alternatives to fasten these two metals together? Thank You
  13. mrcasper

    Lateral Motion of A Frame

    Good point there, that what the geotechs call it, so the jargon was created It works well on land based trials but when u factoring the pitch of the boat and bad weather, things start to move. We've been having some very bad weather
  14. mrcasper

    Lateral Motion of A Frame

    We've decided to shorten the A Frame by 6' as well as add more bracing as long as it doesnt interfere with the cables running between the vertical columns thanks everyone. still encouraging suggestions
  15. mrcasper

    Lateral Motion of A Frame

    @paddington yes, it was contracted to a design firm. Some bracing was done but its limited by cables running between the beams. @ishvaag for each leg, the web is 'sandwich' between two 1" plate which goes between 1" pad eye on either side. The Ibeam is used for a jumbo piston corer (JPC), and...
  16. mrcasper

    Lateral Motion of A Frame

    Guys, I have an A Frame that is moving laterally, I need some advice on how to limit lateral motion its experiencing when out to see. I'm attaching some drawings here and some pictures. Any advice? Thank You
  17. mrcasper

    Surface Turbulence

    At what depth below the surface of the sea does surface turbulence ,eg turbulence caused by a boat travelling on the surface, extend to?
  18. mrcasper

    Forces on a Hydrographic Survey Pole Design

    I'm trying to create an Excel Sheet for easy design calculations of poles used in hydrographic surveys. I want to trap all the possible forces that the pole may experience and make it user friendly as well. I have drag force due of water, drag force due of air, force on the face of the pole...
  19. mrcasper

    Where should i put the weld to the top of the pipe or to the bottom?

    Thank You Gentlemen, you have put my mind at ease
  20. mrcasper

    Where should i put the weld to the top of the pipe or to the bottom?

    Good point. The pole would be in the water for roughly 6 weeks and would be painted, so corrosion should be minimal With respect to the bending loads, won't it be subjected at more bending load at A rather than at B?

Part and Inventory Search

Back
Top