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  1. harlequinir

    NEC/OSHA Clearance Around Enclosed Machine

    I have a 120V (plugs into outlet) "wafer wash" machine (2ft x 3ft) with electronics etc fully enclosed with casters (too roll out for service). When operating, verything is fully sealed (like a dishwasher). One of our maintenance guys says I need a 3-ft clearance all around per NEC/OSHA. But I...
  2. harlequinir

    Cleaning Off Mill Coolant

    Can anyone recommend a cleaner (solvent or other) for removing a emulsified mineral oil (a CNC milling coolant)from a polished metal?
  3. harlequinir

    Grinding and Corrosion Resistance

    Can changing the speed during a diamond turning (cutting) operation on 400-series stainless steel change its corrosion resistance? It seem if we cut at a higher rpm the tool is more suseptable to acids.
  4. harlequinir

    Diamond Turning and Corrosion Resistance

    Can increasing the speed during diamond turning make steel less corrosion resistant?
  5. harlequinir

    Etching Electroless Nickel

    I need to find an acid etchant for nickel-phosphorous. I currently use a 50-50 mix of nitric acid and water plus some HF. I want a very rough surface, but need to protect a photoresist mask. Any info is appreciated.
  6. harlequinir

    bench top rinse tank

    Does anyone know where I can get a 1-2 gal plastic rinse tank? It needs an inlet ans overflow outlet.
  7. harlequinir

    Flowmeter

    I have a 60-liter plating tank that I want to monitor the agitation rate somehow. The mixer is a small vertical pump just above the liquid level. A sparger bar is immersed in the tank as well as all the 1/2" plumbing (therfore no priming). The solution temperature is 185F, and the pump rate is...
  8. harlequinir

    Flowmeters

    I circulate a hot plating solution using a small, in-tank pump. I want to monitor the flow around 8 LPM using a simple flow or pressure meter. Does anyone make a heat-resistant, non-metal device?
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