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 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 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
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...
Anybody knows how the head in a peristaltic pump changes as viscosity or succion head changes.
I need to pump to very diferent viscosities liquids at the same volume ratio, no matter what succion head each one has.
My doubts is that for big sucction heads, the vicous flow may colapse the...
hello. I have several questions.
1) I am new to thermography, and looking for a first level course on infrared, from other thread, I have found that these are the most important place for them:
Snell Infrared
http://snellinfrared.com/course/index.asp
ITC (Infrared Training...
We are building an oven, 34 meters x 5.5 meters x 10 meters.
the temperature inside will be 80 C, outside 20 C.
The footprint of the oven is a rectangle 34 by 10 meters, I know how to calculate the heat loss on the walls, but have no idea on how much heat will go to the ground.
The floor is a...
I´m building a pin hole camera. if you use a very small hole, 0.2 mm, and end up with a f 1000´s.
I can use a lens with a focal distance of 15 cm to 30 to have a bigger aperture but still a big enough depth of field so that I don´t have to worry about focus.
In other words, can anybody tell me...
I´m looking for a better solution to keep references up to date in a complicate design.
The work method in my company so far, has been to take a MicroStation file from the server hard drive, save it under a temporal name in your worksation, change some/many details, and then putting it back in...
I have some knowledge on AutoCAD 2002, as far as 3D stuff goes, but the change to using Microstation V8, is being a little too hard.
Is there any good books on Microstation, I prefer if the examples are engineering oriented, as some of the books out there are only for architects.
Thanks in advance.
