Hi patprimmer, I try to answer the questions above.
First the blend:
I don't know what went wrong in my head (I was totally wrong!), but the blend they sell here in germany is a mixture of 85% Ethanol and 15% unleaded fuel with 95 ocante.
- The fuel lines seem to be ECO or NBR (very cheap one...
Hi there,
has someone experience in
running a two stroke enginge (yamaha scooter) with a fuel-alcohol blend? (85% unleaded fuel/15% Ethanol)
I think the lubrication could be a problem.
I also ask myself if the fuel lines can take it.
Thanks
hacki
No, no student post.
"Material-lab tester for initial samples-post"
We must make such tests according to customer-specifications
in the automotive industry.
Though we are a traditional elastomeric components company
we have more and more plastics in our products and sometimes we must ask these...
Thanks to you for your answers and ideas.
I think the "crosslink and oxidation -thing" is a
possible answer.
The water absorbtion is definetly not the reason because we
measured the amount of volatile components in the material before the "Visco-Test".
(Before visco-testing the original material...
I have noticed a "strange" behaviour of a molded PA12 GF30 part.
The viscosity of the material after heat storage 1000h/150°C is higher than the original value.
Normally the molecules should be damaged and as a result of this effect the viscosity should be lower.
The viscosity was measured with...
Hie try this link:
http://www.karg-industrietechnik.de/english/products/raw_material_characterization/moisture_meter.php
In our company we use this equipement and it works fine and is easy to use.
hacki
Look for "Liquid" Silicone rubber LSR.
These silicon rubbers have to components that are mixed
togehter and then are vulcanized by injection moulding.
Most key pads e.g. in cellular phones are made of this
material.
It also has the advantage that it does not cause allergies.
You can have a...
Mabe you never get clean parts.
The thing is that rubber-compounds often have chemicals
for ozone-resistance or UV-resistance that must bloom out of the surface to protect the parts.
Greetings
hacki72
What kind of test do you mean?
For plastics, rubber, steel, paper?
There are so many options.
Do you have a specific Specification where this A5 Elongation
appears?
Best regards
hacki
Wiper blades are extruded and in most cases they use EPDM-rubber because of its stability against ozone and other environmental influences.
It is a co-extrusion method where they extrude a hard compound and as oft compound together.
-hacki
Does anybody work with the 4th Edition of PPAP?
Is it possible to get a sample from the Material-Test Data sheet because I have do make a e-paper form for our initial samples testing process.
Thanks
hacki
Hi,
I need to calculate a helium leak test rate from
mbar*l/sec. in cm³/min. I tried to find something
"easy" like a table or something due to my leak of
knowledge according gas dynamics and such things.
Can someone help??
Thanks
hacki
