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  1. aspearin1

    Leaking containers.... everywhwere.

    Group, I am currently battling a mass of leaking chemical containers world-wide. 1 Liter HDPE bottles. 1000 gallon totes. 55 Gallon drums. I believe they all have impact resistant PP caps/bungs. They are all made by different suppliers. They all carry different chemistry. They all are...
  2. aspearin1

    Geothermal Heat Exchanger

    I'm researching Geothermal Heating energy and I am curious as to why hundreds to thousands of feet of coiled Polyethylene piping is preferred over perhaps a buried aluminum heat exchanger. Aluminum has great corrosion resistance (unlike copper) and thermal conductivity. In my opinion, using a...
  3. aspearin1

    Electrical Resistivity of Rust vs. other materials

    I'm looking for information on electrical properties of iron oxide (FeO3) relative to other materials (metal and nonmetals), such as silica, nickel, steel, etc... Does anyone know where I may find such information? Aaron A. Spearin ASQ CSSBB Engineering Six-S'$ www.Engineering6ss.com "The...
  4. aspearin1

    Reposted: How do know what the customer REALLY wants

    I posted this in a different forum, but it dawned on me that IT implementation of new software systems probably suffer the most from this. What tips, tools, best practices are used to completely extract information from the customer to find out what the customer REALLY needs, despite what...
  5. aspearin1

    Finding out what the customer REALLY wants

    I'm involved with a project where one of the common (mis)conceptions is that the customer "doesn't know what they want." I was just wondering if anyone else out there has learned this to be the case, where in initial discussion, the customer appeared to want one thing, but upon delivery, they...
  6. aspearin1

    Wealth of knowledge: Free E-books and articles

    Some of these may be a little dated, but may be useful. http://minds.wisconsin.edu/handle/1793/301 Aaron A. Spearin ASQ CSSBB Engineering Six-S'$ www.Engineering6ss.com "The only constant in life is change." -Bruce Lee
  7. aspearin1

    Psuedo job offer...am I ready?

    I've been "invited" to share my openness to internal sales positions, (if said position were to arise.) The whole conversation was kept hypothetical, but there was undertones of action within the year. I never found myself in a sales role before, but management sees personality traits in me...
  8. aspearin1

    To reduce flashing?...

    I have a client who's top defects include flashing and knife cuts during flash removal. Is it possible to reduce/eliminate flashing on most parts by changing run parameters, or do I definitely need to have the tooling reworked? For some history, this client has presses with barrels and screws...
  9. aspearin1

    Managing your own schedule....Priceless?

    I saw a previous thread about whether or not people found it worth the money, as in $/hour, running their own business. My question goes out to those who are freelancing or consulting, and I wonder if there is a dollar value you place on being able to manage your own time. I have family...
  10. aspearin1

    Anyone successful at getting PE without PE signature?

    I'm hoping to go for my PE in the next year. I've been trying the past few years to get a proper network going so I can find some PEs who may be willing to sign my application. I'm in the U.S., and there is a "clause" that says I don't need a PE signature if I have a "good explanation." And...
  11. aspearin1

    Need a small water chiller....but non-ozone depleting

    Hello all, I hope you can asssist. I'm looking for some small water chillers (3-ton), preferably air-cooled. I've had no problem finding them, however the prefered refrigerant still appears to be R-22 for these smaller units. This plant no longer allows this refrigerant. Can anyone recommend a...
  12. aspearin1

    Lost Jumpdrive

    I had a 2GB jumpdrive take a dive while still connected to my USB port. It suffered tremendously, along with 6 month's worth of data. Anyway I attempted to have the data recovered through one reputable company. They brought it through all of their R&D and were unable to recover any of my...
  13. aspearin1

    Considering Six Sigma Consulting

    I'm considering Six Sigma Consulting. I've been trained, been doing the work for a few years. I recently received the ASQ certification for Six Sigma Black Belt. What else should I consider before cold calling? ChemE, M.E. EIT "The only constant in life is change." -Bruce Lee
  14. aspearin1

    Colloidal Zirconia and Alumina, Net Charge?

    I have a sample of some waste water that I need to recycle. It won't settle, so I suspect a colloidal suspension. I need to choose a flocculant so I was hoping to get a little insight on the net charge of these particles. Anionic? Cationic? My slurry contains more than likely a combination of...
  15. aspearin1

    Ultrasonic Acid Strip

    I have NiCoCrAlY coatings that require concentrated HCl acid strip from workpiece tooling. Current process is to immerse, then pressure wash with a gun to remove smut and rinse. Operator yesterday requested ultrasonics in the tank so smut is removed in situ, claiming ergonomic reasons. Either...
  16. aspearin1

    Acid tank mixing velocity sensor

    I'm looking for a meter that is capable of measuring agitation in my acid-stripping tank. I've seen "open-current" meters used for Oceanographic and River monitoring, but I haven't found anything applicable to my need. I may be missing the right keywords, but in essence, I would like a probe I...
  17. aspearin1

    RFID controlled flexible manufacturing cell

    I'm investigating utilizing RFID labels imbedded into workpiece tooling that will transmit a signal to the main controller, telling it what pre-programmed operations to run. The workcell is flexible, but the tooling is part specific. Does anyone have experience with similar projects? I am...
  18. aspearin1

    Electrostripping of Nickel coating

    I am investigating the option of using electrostripping to remove a nickel alloy coating. Right now, we use strictly a chemical strip process. My thinking is that if I can continuously strip and plate my nickel to a getter cathode, then I can prolong the life of my acid by keeping a low...
  19. aspearin1

    Capital to secure patent and start business?

    I'm investigating a few invention ideas I have, of which I am interested in patenting. I would then either be interested in marketing the product myself or offering the IP up for sale to a larger company. Can anyone give advice on this type of situation? I surely cannot afford a patent...
  20. aspearin1

    Hydro Power Turbine Design

    I am curious if there is a reference out there comparing different turbine system designs. (preferebly free... but open to other.) I imagine design iterations are plentiful, and I wish to know if some designs are more fitting to particular flow conditions than others... ChemE, M.E. EIT "The...

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