Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

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

Recent content by Dtuck

  1. Dtuck

    Elongation of Silicone rubber

    It's best to start with a polymer that will achieve that type of a property. Check with the manufacturer prior to purchasing.
  2. Dtuck

    overmolding a rigid plastic onto metal

    You can try this one I located. http://www.glstpes.com/pdf/om.pdf
  3. Dtuck

    Nitrile Terminology ST-2 & BT-3

    See the people from Marshbellofram.com diaphragm division.
  4. Dtuck

    Stretching a rubber tube

    If the ends are properly retained and open to the outside atmosphere, the main shrinkage will be in the thickness of the wall as the length increases. The inside size will shrink only if the inside is isolated fron the outside atmosphere.
  5. Dtuck

    Obamas health plan helping engineers?

    "If you rent oxygen equipment, Medicare payments (and your coinsurance) for this equipment now stop after 36 months. But suppliers are required by Federal law to continue providing oxygen and oxygen equipment for up to 5 years as long as you medically need it, and to keep the equipment in good...
  6. Dtuck

    Obamas health plan helping engineers?

    I am looking for good news from your company related to engineering jobs being saved or created by the new health insurance plan. I think the rush is over of people lining up at doctors offices for their now "free" health care. Please post the "good" aspects that will help business and keep us...
  7. Dtuck

    Silicone to Metal Adhesion Force

    Sand blasting and treating the pins with adhesive is a good start. There are methods of testing but you will have to perform a test based on the geometry of your product. The best adhesion test is one in which the rubber tears before the rubber lets go of the insert.
  8. Dtuck

    Better than PVC?

    Thanks for the clarification. I think I am on the right track.
  9. Dtuck

    Better than PVC?

    I am wondering if there is any polymer better than PVC for the following: 1) Direct digital print adhesion 2) Good tear resistance 3) Weatherability and wash and dry cycles. Current material is 80 durometer Shore A PVC.
  10. Dtuck

    The Politics Of GD&T

    My experience in doing design reviews on products we are asked to make, military included, is that it is easy to find contradictions on hole sizes and positional tolerances. Standard or no standard, the designer needs to have a practical sense of the related components and, more importantly, the...
  11. Dtuck

    VOSP callout

    Well, it does have a link to Canada but they're not really that far away. Thanks.
  12. Dtuck

    VOSP callout

    The winner is... well, the customer is not completely sure either. Neither of us has been in the business since 1983 so caseynick gets the nod on this one.
  13. Dtuck

    VOSP callout

    I have a drawing with the tolerance block stating +/-1/64" VOSP I am not sure what the letters stand for. Is this part of a standard? Thanks in advance.
  14. Dtuck

    Hope for China and IP yet.... or maybe not.

    Microsoft advertised Vista heavily in China in 2007 and it was taken up and used very heavily by millions of people. At one point, they had recorded only 244 legal sales of the software. I won't get out my calculator but I think you can probably smell the $$$ problem at the root of this whole...
  15. Dtuck

    Dilbert: how close to reality?

    In the late 90's, there was a very long Dilbert session on ISO:90001 registration. We were going through the process at the time and there were several days that the Dilbert cartoon matched our meeting minutes a little too close. I dont't know which one he was, but he had to have been there.

Part and Inventory Search