OTS Kit for Measuring Pressure during Shear Action

Hello,

Will you please provide the minimum and maximum forces experienced during acceptable insertions and also the maximum force this sensor must be able to withstand during a catastrophic incident? Also, what accuracy is required, 1%, 5%, 10%...? Thanks

Minimum Pressure - 0 kPa (no suction)

Maximum Pressure - 2.0 MPa

Substrate Failure - 2.5 MPa

Accuracy of 1% would be preferred.

Our company uses Promess or TOX® Pneumatic-Hydraulic Units, refer to TOX® Pressotechnik. Both systems have very high pressure and can tell you everything that you could want to know about the force and distance pressed.

Thanks for this.

I realise I wasn't clear enough in my original question. I don't need a new solution to measure the axial force to press in the substrates - Tekscan does that reasonably well.

I need something to measure the radial forces experienced by the substrates during canning - when wrapped around the circumference between the substrate and the mat, the tekscan sensors tend to wrinkle and are damaged during the canning/pressing process.

Cheers

English Rose, Doubtless you have sorted this problem, and I am not conversent with the can stuffing business, but the use of 'wood' may not mimic metal, Have you thought of employing low melting point eutectic alloys? they are very easy to fabricate. The advantage is you can melt and remelt if you have a suitable mould. indefinately. Bata Shoes used this method for pressing endless soles from a rubber formulation. As for accuracy, contact lenses are made this way as well. those are very high spec.

Hi Alastair,

Not yet!

Thanks for the input. The company has a dual form (low melt alloy) machine which it uses to make short run pressing moulds. This is a different problem though.

I want to measure the radial pressures experienced by a substrate (catalyst or filter) when it is pressed (end stuffed as opposed to wrapped) into its metal can. The problem with this is that the shear forces set up as the substrate is slid into the can tend to damage the sensors we currently use, so I'm after something that can survive this and give me accurate measurements.

The wood is used to mimic the ceramic substrate - at £400-£500 each, I'd not be popular if I broke a whole load during the testing!

We don't have accurate measurements/values of the mat/metal friction coefficient, so measuring the axial load and converting to radial is accurate enough.

In case you haven't guessed, we specialise in exhaust after-treatments.

PS I worked out TA - Duh! As Dogbert would say.

No English Rose I had not guessed, So it's 'Sunday Night at the London Palladium' every day of the week for you then?

The Cohen 600 Group, are almost certain to fix your problem.

Quote :-600 Group, one of the oldest quoted companies on the London Stock Exchange, has experienced mixed fortunes ever since George Cohen founded his scrap metal

Well I never! If they have that much experience with things that 'failed to work'

Boy oh Boy! they must know a lot Cool folk in my estimation.

Gosh:-

In an industry that dates back several centuries, wood-turning lathes were known of in the 1650's, brand identity built up over the years is crucial. This long established brand name is part of 600 Group PLC. The 600 Group has been supplying machine tools and providing support in their installation for over 150 years. 600 Group is UK's largest manufacturer and distributor of machine tools and sells its products in over 100 countries.

The Colchester Lathe Company was first established in 1887. Although officially known as The Colchester Lathe Company from 1907 the company was actually established in 1897 by John Ephrain Cohen. The company had its centenary in 1997.

In 1992, Colchester moved production to Heckmondwike, West Yorkshire and now operates from the largest volume lathe factory in Europe.

I've looked at their website and, while they are, no doubt, the leading lathe and machine tool manufacturer, I was unable to find a division that sold pressure measuring equipment of any sort.

Guest, if you can provide me with a link to the appropriate webpage, I would be grateful.

I think 'Guest' can probably make enquiry's 4 U.... CEO 2 CEO?