www.mapleinstruments.com Open in urlscan Pro
2607:f1c0:100f:f000::2fb  Public Scan

Form analysis
0 forms found in the DOM

Text Content

About Us

Started in 1992 primarily as a consultant to other Rheology companies, Maple
Instruments became a limited company in 1996 and has been growing every year
since then. We offer an in-house sample testing, laboratory as well as a Service
Department for calibration and repair of most major rheometer brands.

We offer sales of both used and new instruments as well as training both
in-house and at your location.

--------------------------------------------------------------------------------

Service: On-Site / In House

In addition to DMTAs (Dynamic Mechanical Thermal Analysers) third-party
servicing is available from Canadian and U.S. locations on most popular models
of rheometers.

Service options include:

> annual preventive maintenance service and calibration contracts *
> emergency repairs
> warranty service
> parts replacement

> > * Generally considered essential for consistent reliable product testing

--------------------------------------------------------------------------------

Sales: New and Used Instruments

A comprehensive knowledge of rheological and material test requirements gives
Maple Instruments the credentials to recommend the test instrumentation most
suitable to meet customers' needs.

In addition to manufacturers' warranties on new equipment, Maple Instruments can
offer warranties on used instrumentation. We specialize in the following:

> controlled stress rheometer
> controlled strain rheometers
> solids analysers, especially DMTAs (Dynamic Mechanical Thermal Analysers)

--------------------------------------------------------------------------------

Training

To optimize a customer's investment in rheological instrumentation, instrument
training is recommended. This typically takes 1 or 2 days and ensures that
technicians become totally familiar with all aspects of a particular instrument.
Training costs are based on labour and travel expenses.

Also available are teaching seminars and lectures on practical viscometry and
rheology, with advanced courses available on modeling and advanced rheological
measurement and data interpretation.

--------------------------------------------------------------------------------

Rheological Testing: Solids, Fluids, Melts

Measuring the flow behaviour and mechanical properties of materials through
rheological testing provides some major benefits, for example:

> improved product development
> reduced cost of bringing a product to market
> establishing competitive product advantages

Maple Instruments will run your sample using the appropriate rheological
instrumentation. Now you can have professional sample testing, very often within
a 48-hour turnaround depending on the number of samples.

Each test includes:

> graphs showing test results and parameters
> a written report
> numerical test data

--------------------------------------------------------------------------------

Contact Us

Shipping your instrument to us for service?

Please observe the following advice.

PACKING



Your instrument is a delicate measuring device, treat it with respect. We
recommend double boxing each component that you are sending, for example, wrap
the component in bubble pack and place it in a tight fitting cardboard box. Now
wrap it in bubble pack again and place it in a second heavy cardboard box.



Shipping a DMTA measuring head?



The head must be double boxed as described above and a stiff sample mounted in
the clamps, preferably in double cantilever. If you are shipping a tensile head
or combination head you must load a sample and engage the "transit clamp". This
clamp is built in to the measuring head and slides into place. There are 4 bolts
and 4 grub screws. The bolts prevent the assembly from moving during shipment
and the grub screws prevent damage to the drive platform by limiting the amount
of force from the bolts.

Attention DMTA MK III users! If you are shipping the measuring head to us please
engage the lock located on the front panel, this secures the moving assembly.



Shipping from within CANADA?



Please ship overnight prepaid.



Shipping from the U.S.A. to CANADA?



Please fill out the attached    Invoice ( Adobe PDF format, 960K - Download the
free Adobe Acrobat Reader if you don't have it); call us with any questions.
Make 3 copies and give it to the courier. We recommend FEDERAL EXPRESS, ship
overnight prepaid.

--------------------------------------------------------------------------------

Ask Dr. DMTA



We have been involved with the Polymer Laboratories DMTA since 1984 and now
service all models from the original MK I through to the latest MK V.



We invite you to share your technical knowledge and experiences with other DMTA
users and ourselves.

Below you will find some technical advice for common questions; we always enjoy
hearing from you so give us some feedback!

 

ACCURATE MODULUS MEASUREMENTS ON THE DMTA

A frequently asked question by DMTA users concerns accurate modulus measurement.
The DMTA is capable of accurate modulus measurement if the user is careful in
sample loading and does not exceed sample dimensions relative to the sample
frame size. The user can choose between 3 measuring frames and basically 3 types
of drive shaft clamps. A common error is choosing the wrong drive clamp when
using single or dual cantilever measurements. The user must remember to use the
dual cantilever drive shaft clamp (Clamp A) only with dual cantilever
measurements and the single cantilever drive shaft clamp (Clamp B & C) only with
single cantilever measurements. These clamps are very different and will result
in inaccurate modulus measurements if the wrong clamps are used. Please refer to
your user manual for more details.

Length to Thickness Ratios



Another source of error can be sample free length. If the free length is not
properly measured this will result in an error in calculating the geometry
constant. Sample free length is defined as the distance between the sample
clamps. However, when measuring a large sample or a high modulus sample there
maybe movement underneath the clamp faces, if this is the case then the free
length can not be defined as the distance between the clamps. This movement of
the sample under the clamp faces can be limited in a number of ways. Generally
the longer the free length the less important this source of error and it is
useful to consider the ratio of length divided by the thickness of the sample.
Ratios between 5 and 7 are considered to be ideal and the higher the modulus the
greater this number should be.

Sample Torque



The clamping pressure used on the sample is critical for accurate sample
modulus. There exists an ideal torque for each sample based on the clamping
arrangement and modulus of the sample being measured. An experienced operator
will develop a "feel" for this after a while, however, for most users we
recommend the use of a torque wrench. To determine the correct amount of torque
begin by loading the sample and using a small amount of torque to "square" the
sample up, turn the DMTA to run and make a note of the Log modulus. Turn the
DMTA to hold and increase the torque by a nominal amount ( try 5 cNm ), turn the
DMTA to run and note the new modulus. Continue this process, increasing the
torque by small amounts until there is no further increase in the measured
modulus. Care should be taken not to over torque as this will compress and
distort the sample.

Conclusion



Accurate modulus measurements are possible if the user is careful when selecting
the frame and drive clamps, choosing an appropriate length to thickness ratio
and of course the correct torque for the clamping nuts.

--------------------------------------------------------------------------------

Jobs


FIELD SERVICE ENGINEER

Maple Instruments is looking for an experienced field service engineer for the
purpose of installation and service of rheological instrumentation. The
candidate should have a diploma in electronics technology or equivalent
technical or military experience. Experience in service, installation and
calibration of electro-mechanical instrumentation as well as computer literacy
is important. The successful candidate will be required to travel extensively
and perform fieldwork nation wide in the U.S. and / or Canada. Good
communication and organization skills are a must for this position.



Please E mail your C.V. to maple.instruments@sympatico.ca

--------------------------------------------------------------------------------

Links

Rheometrics Scientific ( www.rheosci.com )

Can-Am Instruments (www.can-am.net)

--------------------------------------------------------------------------------

| ABOUT US | SERVICE | SALES | TRAINING | TESTING |
 | CONTACT US | LINKS | DR DMTA | JOBS |

--------------------------------------------------------------------------------

Copyright ©2000 MapleInstruments.com - All Rights Reserved

Maple Instruments Ltd.
116 Johnston Ave.
Toronto, Ontario M2N 1H2  Canada
Tel:416-590-7446 * Fax: 416-590-7464
Email: maple.instruments@sympatico.ca

Software Development by   Webstar Solutions