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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...

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...

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

Thank you SEP87 for detailed explanation...

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...

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...

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.

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...

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...

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...

I have calculated Actual CFM.

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...

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...

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

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...

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...

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...

The Thickness of Insulation is purely dependant on Economics, we need to provide optimum wall thickness so heat loss through furnance 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 furnance wall & work...

Tangential Force = Co-efficient of Friction for power Screws x Normal force When the tangential force F overcomes the frictional force between two surfaces then the surfaces begins to slide relative to each other. The Co-efficient of Friction for power Screws is dependent on material of Screw...

Weld stress = load(force)/Weld throat area weld throat area of circular fillet weld is calculated as follows = 0.707 x weld throat thickness x PI x diameter of Pin then compare the calculated weld stress with Permissible stress ( 0.60) (60 %) x Yield strength of Pin)