where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

720 views
Career Discussions
William Blum
Consultant, Training, Level III Services
NDT Consulting Group Inc., USA, Joined Nov 2000, 89

William Blum

Consultant, Training, Level III Services
NDT Consulting Group Inc.,
USA,
Joined Nov 2000
89
02:47 May-03-2005
Acid etch of High Temp steel for grinding burns

Does anyone know of an ASTM or other standard which describes this process?

Thanks,

Bill



    
 
 
Daniel H Rice
Daniel H Rice
03:27 May-04-2005
Re: Acid etch of High Temp steel for grinding burns
----------- Start Original Message -----------
: Does anyone know of an ASTM or other standard which describes this process?
: Thanks,
: Bill
------------ End Original Message ------------

it has been my experince that a 5% nital solution will do the trick. or 5% nitol the difference being the alchol as methnol is now considered an enviromential hazard. or 5% nitric and distilled deionized water. BUT WATCH OUT, IF YOU MIX THESES CHEMICALS WRONG YOU CAN CAUSE ADVERSE REACTIONS LIKE AN EXPLOSION. So take the time read the information on the web or from a supplier.
Ok back to the grinder burn any of these will show a localized grinder burn to the visable eye. providing the surface is smooth enough. Dress with 1000 grit wet sanding paper. Before performing the etch.
Check with ASTM E 305 this may be applicable


    
 
 

Product Spotlight

Teletest Focus+

Teletest Focus+ electronics have superior capabilities than rivals on the market. Beyond the usual
...
test features, Focus+ has 24 transmit channels and 24 receive channels, with an additional on-board switching capabilities. The instrument's frequency range is 10–300 kHz.
>

NEW - TD Focus-ScanRX

The NEW Next Generation Advanced UT platform, TD Focus ScanRX - Also available as a card stack solut
...
ion. Key Improvements 1. Data acquisition is significantly faster than current design 2. Better aesthetic – closely aligns with HandyScan RX 3. Improved IP rating (Target IP66) 4. Ruggedized housing 5. Connectors are protected from impact and ingress 6. Integrated stand and separate retractable handle easy to keep clean) 7. Touchscreen with ruggedized display glass 8. 3-Axis encoder input
>

Conformable wedge transducer

The conformability is obtained with a flexible membrane filled with water between the transducer and
...
the inspected component. The coupling between the membrane and the component requires a small quantity of water or couplant. The conformable wedge combines the acoustic performance of immersion technique with good coupling and low attenuation.
>

Research and Applications Development For NDT

The Research and Applications Development (RAD) group is a newly formed team within Acuren dedicat
...
ed to tackling challenging inspection problems. Our focus is the development of novel, field deployable, advanced inspection techniques for use in cases where standard NDT methods are ineffective. We don't wait for new innovations, we engineer them. From concept to commissioning.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window