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  • Users: som1973
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  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

    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...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. som1973

    Estimating Heat transfer Coefficient(h) using Solidworks Flow Simulation Software

    Hi All, I have done Analytical Excel spreadsheet calculation for Estimating Heat transfer Coefficient(h) for array of Nozzle Jets (Nozzle Plate) with certain distance from Impingement surface(Oven Belt) for a forced convection air Impingement Oven. I am interested to know whether Solidworks...
  8. som1973

    correct nusselt number correlation

    Can anyone help in finding correct nusselt number correlation for following condition? Multiple array of air jets (nozzles) in Forced convection air impingement ovens I am trying to figure out maximum heat transfer coefficient (h) based on nozzle diameter (D) and distance between nozzle...
  9. som1973

    Minimum number of threads required

    Hi, I need to calculate Minimum number of threads required for two pipes to engage, The Pipes are having NPSM (American Standard Straight Mechanical Pipe Thread) Pipe size = 4"-8TPI (NPSM Thread) The pressure in the pipe is around 75 PSI. I have considered two threads for engagement, Is...
  10. som1973

    Minimum number of threads required to engage

    Hi, I need to calculate Minimum number of threads required for two pipes to engage, The Pipes are having NPSM (American Standard Straight Mechanical Pipe Thread) Pipe size = 4"-8TPI (NPSM Thread) The pressure in the pipe is around 75 PSI. I have considered two threads for engagement, Is...
  11. som1973

    High Temperature Linear Actuator

    Hi All, I am looking for High Temperature Linear Actuator for Conveyor Oven Belt Tracking system. The linear Actuator should withstand a temperature of 250-300 deg Centigrade or 480 deg F to 575 deg F Can anyone help me to find suitable linear Actuator manufacturer for High Temperature...
  12. som1973

    High Temperature Linear Actuator

    Hi All, I am looking for High Temperature Linear Actuator for Conveyor Oven Belt Tracking system. The linear Actuator should withstand a temperature of 250-300 deg Centigrade or 480 deg F to 575 deg F Can anyone help me to find suitable linear Actuator manufacturer for High Temperature...
  13. som1973

    Bearings inside an oven

    Hi, Does anyone has used bearings inside a Industrial oven.(Inside baking chamber) We tried to use high temperature bearings in an oven but bearing seized after 3-4 weeks of operation. Can anyone shed more light on this........
  14. som1973

    Heat Required to Bake a product in an oven

    Hi, Can anyone help in calculating Total Heat required (Btu/hr)from basics(Fundamentals) for Baking a product(biscuit)in an oven. I have considered the following procedure. 1. Heat required to raise the temperature of dough to 100 deg C (212 deg F) 2. Heat required to evaporate the water in...

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