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  • Users: rhpe
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  1. rhpe

    DOT 406 Code Tanks

    Do cargo tanks that hold diesel have to meet the requirements of DOT 406?
  2. rhpe

    Designing a dished disc in sheetmetal

    I would like to design a dished disc in sheetmetal so I can "unfold" it and get an idea of what the preformed dimensions need to be. Is this possible? I can obviously draw the part as a solid but cannot convert it to sheetmetal. Thanks for any help.
  3. rhpe

    Mirroring of Surface Parts

    I am doing an FEA of a component that has several large diameter pipes that are generally mirror images of each other. I have chosen to run shell elements for the pipes and would like to know if anyone has a method of mirroring surface parts which shells require. Thanks
  4. rhpe

    4130 Endurance Limit

    I am designing an axle shaft and have specified HT to be Rkw C 34-38 quench and tempered. Does anyone have a feel for what the endurance limit modifier should be as a funciton of the ultimate tensile strenght? I know that for most purposes I would start with half of the tensile strength and then...
  5. rhpe

    Drawing slow to come up

    After creating a part is SW 2006 and pressing the create drawing icon it takes a long time before the drawing format comes up. I am using SW 2006. Thanks for any help.
  6. rhpe

    need 12 volt 20 amp power supply

    I am designing a product and need a 12 volt 20 amp power supply (convert from 110 ac). This is not for communications but to drive an electric cylinder. Does anyone know of a good supplier that has a UL rating? I can also get the motor in a 24 volt size--other than the smaller amps pulled is...
  7. rhpe

    Polarized Refrigerant Oil Additives

    I have ran across replacement refrig oil lubricants called Polarized Refrigerant Oil Additives (PROA). From the Federal Technology bulletins, the field data seems impressive, i.e., 10% savings or more and longer life of the compressor. It works by removing the sticking oil out of the loop and...
  8. rhpe

    A/C Powermizer

    I have run across a device that claims to lower a/c cost by reducing the run time of the compressor so the air conditioner reaches max cooling temp with minimum energy usage. It does so by sensing the temp of the air off the evap coils and then turning off the compressor when certain conditions...

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