Hardness testers
Hardness testers
(OP)
Hi,
I run a QA lab and we have an old Wallace Microhardness (IRHD) tester. It is hand operated and at least 20years old. I would like to replace it and wondered if anyone can suggest the best (or most commonly used) meter.
Are there any disadvantages/limitations with newer machines
Thanks
Elastomatt
I run a QA lab and we have an old Wallace Microhardness (IRHD) tester. It is hand operated and at least 20years old. I would like to replace it and wondered if anyone can suggest the best (or most commonly used) meter.
Are there any disadvantages/limitations with newer machines
Thanks
Elastomatt





RE: Hardness testers
See http://w
Tom Jablonowski, TSE Industries, Inc.
www.tse-industries.com
RE: Hardness testers
Cheers
Corrosionman.
RE: Hardness testers
Thanks for the info. we do use Shore A meters as well, some are handheld and I don't like them as the results seem variable (control of force).
Most of our customers now have more modern equipment and there have been some differences between our test results recently. I have had our machine checked out (by our materials lab manager) using the calibration pieces it was OK.
I will give Wallace a call and see what they have to offer, they do our annual calibration already.
Elastomatt
RE: Hardness testers
RE: Hardness testers
However we do check directly on product which have varying profiles, what is the maximum size dead load bench-mounted testers can take? And is there anything to be aware of (i.e. curved surfaces against flat)?
Thanks
Elastomatt
RE: Hardness testers
You can always ply up 3 or 4 piecces of your sheet/part/whatever and use this for testing the hardness (but the result won't be quite as accurate).