TPT September 2008

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September 2008 80
Technology Update
›
European official distributor
impeder cores
U.S.M. Mazzucchelli S.r.l.
USM provides top quality products
and services to the Tube and Pipe
industries worldwide. We have a
wide range of top quality items
and devices for tube
manufacturers’ requirements.
Once our products have been
chosen, we can immediately
deliver them from our stock.
Ferrite cores Impeders
Carbide inserts
HSS blades Guillotine blades Other....
Ceramic rolls Inside tube scarfing Cutting rings
Tool holder Copper inductors
Fibreglass tubes
V.le Lombardia,4 - 20052 Monza - MI - Italy
Tel. +39/039.387282 - 2301687 Fax +39/039.387633
The Argweld MKV weld purge monitor, from
Huntingdon Fusion Techniques Limited, UK,
provides precise indication of the oxygen
content of weld purge gas, and allows
welding to begin as soon as the correct
oxygen level is reached, without the need
for guesswork.
The monitor can be used by any industry
welding stainless, duplex or chrome steels,
or nickel alloys. Industries using such
materials, and needing to be in absolute
control of their ‘back of weld’ quality, include
aerospace, beverage, food, semiconductor,
nuclear, automotive, processing, pipeline
and petrochemical.
“By showing the operator exactly when the
oxygen content is low enough to commence
welding, the purge monitor eliminates
premature starts” said Darren Sewell for
Huntingdon Fusion Techniques.
The Argweld MKV has a 13mm high liquid
crystal display, providing a continuous
accurate reading of oxygen levels down to
0.1 per cent (1,000 ppm), and indication of
oxygen down to 0.01 per cent (100 ppm). It
can be connected to the exhaust port on the
purge device or enclosure so that the gas
flows over the sensor to provide continuous
monitoring.
By attaching a stainless steel probe, the
monitor can also be used in sampling mode.
The probe is inserted either through the
weld joint gap into the volume being purged
or into the exhaust port of the purge device.
With a measuring range of 0.01 to 20.9 per
cent oxygen (100 ppm to atmosphere), the
monitor has an accuracy of +0.2 per cent
at 20 per cent, and +0.02 per cent at 2
per cent. The monitor measures 155mm x
81mm x 38mm, weighs 210g, has a working
temperature range of +40°C to -40°C, and
is powered by a 9V PP3 battery.
Huntingdon Fusion Techniques Ltd – UK
Fax: +44 1554 836837
Email:
Website:
Slitting tool testing service
Dienes GmbH & Co KG, Germany, is the
supplier of a portable ‘test case’, containing
a complete laboratory in suitcase format,
ideal for slitting tool analysis.
This ‘slitting tool MOT’ is aimed at proces-
sors who frequently have to analyse machine
errors and increase processing quality. The
test unit enables Dienes technician to record
the basic data, and compare the actual data
with the recommended data. The applied
tools can be analysed onsite to improve tool
service life and slitting edge quality.
The laboratory suitcase uses the company’s
Kaizen analysis, and incorporates a wide
range of experience and analytical know-
ledge. Technical services provided by the
Kaizen analysis include quality-relevant
assessment, comparison, improvement
suggestions, and written evaluation.
Dienes GmbH & Co KG – Germany
Fax: +49 2206 605 111
Email:
Website: n
Advanced purge gas monitor for cost-effective welding