Invisual E Inc. TechnologyUPDATE

Radian is our brand platform for our tube and pipe moni-toring system. The platform covers a range of application areas for the production line.

Radian Weld Height / Weld Width RatioWith a monitoring system in place, there is a world of meaningul data mining that can take place. Understanding the relationships and causality of how one affects the other is an important step. In this issue we will address weld ratio.Weld ratio is a parameter that we discovered some time ago and in summary it is a signature of the behaviour of the material in the mill, stability of the pro-cess and a signal of weld integrity.

The goal is to progress from an uneven distribution, herein indicating there is very little control of the process, towards a tight cluster, herein orange dots.

Newsworthy for tube and Pipe Producers

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There are multiple ways of effectively conducting inspections

at various points during production, but technology adopters

gain the upper hand. Meaningful and useful information is a

powerful source of competitive advantage.

We specialize in process monitoring and quality management

implementations for industry.

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N e w : N o n C o n t a c t E n c o d e r sConventional contact wheels and other tactile measurement systems, lose their accuracy over time due to aging or dirt built up, mechanical loss contributes to inefficiencies in yield counts.

iLaser4 is a non contact encoder device, with a long life cycle, low maintenance and accuracy over the lifecyle. At the outset, compared conventional encoders it is a more expensive purchase. However it is not uncommon for a company to replace their encoder once or twice a year. Include the accuracy of measurement over a much longer life cycle, the yield count will easily justify the investment. Using laser Dopler principles, the scanner can operate at speeds up to 1300 ft/min ( 400 m/min) with an accuracy in the 0.05%. Since this is not contact, with no moving parts, these numbers will hold for years. realm of 0.004”.

Application offshoots of the non contact encoder are measurement for: Continuouslength Speed Discreteproductmeasurement Differentialspeed Cut-to-length

As a result of the higher measurement accuracies and tighter process controls, con-verters are realizing a number of production efficiencies, more accurate yield, less raw material input and ultimately higher profits.

iLaser4 conforms to these electrical standards:EN55022:2006/EN61000-2:2005/EN61326-1:2006

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RIGHT ONES.

cont’d. . Weld Height / Width Ratio

HHere is another chart of a different client, that has no monitoring.

I will have to say that it is not bad considering., but it does mean

there is opportunity for improvement.

One can see that there is a shift from one run to the next. It is

an overall increae in weld height and weld width, indicating a

change in the heat input. The root cause was the impeder.

This ratio is good to compare production runs of the same

material on the same mill, for inherent in this metric is the

consistentcy of the setup, if the setup charts are properly uti-

lized, and startup parameters are being managed properly. It is

also an indicator of the input and knowledge of the operator on

the mill on that production run.

Weld upset, squeeze out, weld bead is not something that

readily comes to mind as a valuable piece of information, but it

does tell a story. What Radian does is capture the story in real

time to allow the users of the data gain knowledge and ulti-

mately move towards a more efficient, high yield process.

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