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Recent content by som1973

  1. som1973

    Flatness Tolerance after Heat Treatment

    Hi All, We are in process of producing a heat treated flat bar made from Cast Iron(FG260). This cast iron bar is used for supporting the conveyor belt in an Industrial oven. The cast iron bar is machined as per the drawing & heat treated by Induction hardening to 1.5 mm case depth...
  2. som1973

    Calculating Outside Wall Temperature of Heated Chamber

    The Thickness of Insulation is purely dependent on Economics, we need to provide optimum wall thickness so heat loss through wall should be minimum, also cost of insulation is also kept minimum. Hence you need to work out what should be allowable heat loss through wall & work backwards to...
  3. som1973

    Insulation Material for Combustion Furnace

    Mineral wool board or Ceramic fibre board insulation can be used..
  4. som1973

    Pilot Gas Valve Assembly

    Thank you SEP87 for detailed explanation...
  5. som1973

    Pilot Gas Valve Assembly

    Hi Everyone, We are Industrial oven manufacturers & we generally use Gas burner system with fuel gas trains having Main & Pilot gas lines. We have some important questions regarding Pilot Gas train., see details below. 1. When do we need Pilot Gas Valve Assembly ? 2. Does...
  6. som1973

    Variable Stroke Pneumatic Cylinder

    Hi Kcj, Thanks for your reply. Please find info regarding this cylinder. Yes, we need position control. This positioner cylinder is controlled from a servo valve( Pneumatics) which is in-built in the cylinder and can move to any stroke position. This position is maintained even under...
  7. som1973

    Variable Stroke Pneumatic Cylinder

    Mike, The cost of the Variable Stroke Pneumatic Cylinder is £2660(USD 4380) hence we are trying to source equivalent cylinder from another supplier. I hope I have answered your question.
  8. som1973

    Variable Stroke Pneumatic Cylinder

    Hi All, I am looking to find an alternate source for Fixed Range Positioner Cylinders( Variable Stroke Pneumatic Cylinder ) See below link for more info. http://store.norgren.com/uk/en/detail/m_1525_75/fixed-range-positioner-cylinders We are using this Variable Stroke Pneumatic...
  9. som1973

    Burner Flame turning Yellow

    Hi All, We are using Ribbon Pipe Burners for baking Tunnel oven, The Burners lit with blue flame in the morning without any problems, but after sometime the Flame turns to yellow. The ambient( Oven Room temperature) is around 65 deg C (during Oven operation) The combustion air for the...
  10. som1973

    ACFM or SCFM

    Thanks Chicopee & IRStuff for your advice/Suggestions, the customer has introduced two new products few months ago which has more moisture in the product ( I got the Product info from customer)& now he is complaining that water is coming of the oven. In order to remove this excess moisture, I...
  11. som1973

    ACFM or SCFM

    I have calculated Actual CFM.
  12. som1973

    ACFM or SCFM

    Thanks All for the advice/suggestions. The Oven is baking oven and not drying oven, there are Manual dampers on the exhaust to control the amount of exhaust going out. I have calculated the actual CFM Required considering all the process involved during baking. Now I am comparing this Actual...
  13. som1973

    ACFM or SCFM

    Hi All, I am trying to figure out the problem on our Tunnel oven supplied three years ago to our customer. Recently, we found that the Water is coming of the Tunnel Oven through Gaps of Each Modules. I am being asked to verify/check the Exhaust fan CFM rating of existing fans. whether...
  14. som1973

    Some building mass-wall heat transfer help?

    Check this....... http://www.builddesk.co.uk/our+software/builddesk+u
  15. som1973

    Estimating Heat Transfer Coefficient(h) using Solidworks Flow Simulation Software.

    Hi All, I am interested to calculate/Estimate Heat Transfer Coefficient(h) using Solidworks Flow Simulation Software. I have posted in Solidworks Flow Simulation Software forum also. see following link. http://www.eng-tips.com/viewthread.cfm?qid=330053 Pl. let me know your views on...
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