we have a problem in our plant, with the valve seats of valves, after a lot of checking seems that at least one of the causes is cryogenic thermal shock to the seat material.
kel-F, PTFE, or anything else just can´t keep it up, specially on the weekends the valve gets to ambient temperature or...
I could like to know what degrades PVC rubber, is it air, ozone, UV rays, water/moisture, heat...
and how to avoid degradation, waxing the surface, storing in the dark, using nitrogen atmosphere, painting it.
thanks for any help.
Jabonet.
I have heard all this about not using deepcycle batteries for cranking.
I had a DC Battery installed in a ford mustang, the amps that the starter needs is around 200 amps, this is not much for a DC bat. this battery lasted for ages of heavy use.
be aware that the alternator on your car is...
You are asking for anti-squat rear suspension, which can actually lift the rear of the car for a few yard, and put quite some extra load on the back wheels at the cost of lifting the CG. in F1 cars, there is practically no suspension whatsoever, and most of the force is aerodynamic.
It sounds to me that IR thermography is not the right tool to detect you "dime", maybe you can detect the fire, when the trash is already out and spreaded over.
there are early fire alert systems, that are able to detect by smeling the posible cause of fire. something like...
I am looking for the ABS Scantlings for Offshore Racing Sailboats. I understand that ABS no longer publish this, anybody know where to find it (free if posible) on the web?
Thanks
Javier Bonet
I have use extruded styrofoam, and then melt it with acetone or gasoline, but a good result depends on what size a piece you are making.
another way I do it, first a waxed balsa plug, then a thin layer of glass and epoxy, when split open this shell, take the wood out, glue it back together, and...
I can only think of three cases where using a stern thruster could be a must, if you have twin rudders and one propeller, therefore no flow over the rudder, in which case you need some speed to steer.
in case you want to keep a very precise position over the seafloor, and your main engine is...
I also have a problem with this E must equal A, no problem with the assumption that it happens only when there is thermal equilibrium, but its also that its true, only when you take in account the whole espectrum of radiation that is radiated to and from the object, let me explain:
in the case...
I could like to know the price for thermography services.
How much for a roof inspection, an electrical inspection of a switchboard or a breaker, or how much does it cost for a company to have a thermographer to come up every few weeks and check on different equipment for preventive...
What could be the diference between a microbolometer capable of detecting temperature diferences of 0.1 K and a photon detector capable of the same 0.1 K.
Jabonet
Actually I could like a website where you could find reviews on IR cameras, no matter how old, or what manufacturer. that could be perfect.
any Info on a MicronViewer 7290A?
I need to know the performance of a Inframetrics 525 infrared camera, is it any good? how much does it cost to fix and/or calibrate? anybody has a set of manual I can copy? is this camera delicate? anything you may think of, thanks.
I want to know how much is the maximun temperature you can achieve with a solar concentrator.
lets say that you have a volume of one cubic millimeter, and that you start concentrating reflected rays from the sun passing through this volume, is it posible to achieve a temperature higher that the...
