Houston Materials Testing Machine

testresourcesClean Technology

May 12, 2015 (2 years and 1 month ago)

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TestResources, Inc. is a materials test equipment manufacturer led by experienced engineers, focused on helping customers solve their mechanical testing problems for almost 20 years. http://www.testresources.net

TestResources, Inc. is a materials test equipment manufacturer led by experienced
engineers, focused on helping customers solve their mechanical testing problems for
almost 20 years.


Customers value our smart machine design with the delivery of tailored and responsive
solutions for static and fatigue testing applications. As test engineers that develop and
produce a wide range of systems and accessories, we solve challenges ranging from
highly technical down to the basics.


We value the delivery of responsive, affordable, and effective solutions that overcome
the challenges of static and fatigue testing applications. As test engineers that develop
and produce a wide range of test systems and accessories, we solve challenges ranging
from highly technical down to the basics.

Flexible Foam Testing
From automotive cushioning materials that take you to work to the
pillows and mattresses you lay on, flexible polyurethane (FPU) foam
is a part of our daily lives. The incredible diversity of FPU foam
products are made possible by the ability of foam materials to be
engineered to serve a wide range of performance requirements. The
unique combination of load bearing and firmness makes FPU the
perfect choice for a dazzling array of products but that same benefit
makes it a challenge for a test engineer to confirm performance in
specific application.

Oftentimes determining the best foam for a particular task is based on interpretation of
test results and opinions. The inaccuracies and reproducibility's of some test methods
leave the question open to subjective opinion. Not only that, but test reproducibility from
machine to machine and lab to lab can vary quite a bit. Errors ranging up to thirty per
cent* result from some test procedures which are compounded by poor test experiment
planning and communication. IFD interlab tests often lead to varying results;
Compression deflection and flex fatigue testing usually leads to wide differences in test
results.

Rigid Cellular Plastic Foam Testing
Rigid cellular plastic foams are most often used in the
construction industry for sound and thermal insulation.
Polyurethane (PU) foam constitutes the largest volume,
with other polymers such as phenolic foam and
polyisocyanurate. Rigid expanded polystyrene (EPS)
geofoam is used for construction projects. Note that there
are considerable differences between flexible
polyurethane foam and rigid plastic foam products, so the
physical properties tests and test machines are quite
different.

Cellular plastics are produced in the form of slabs, blocks, boards, sheets, molded shapes,
and sprayed coatings. Closed
-
cell foams are generally rigid, while open
-
cell foams are
usually flexible.

Adhesive Testing
An adhesive is any substance that creates a bond between
either the surface of a material and the adhesive itself or
between the surfaces of two different materials. The
purpose of this bond is to resist any forces that try to
separate the objects that have been bonded together.
Common forms that adhesives may take are glue, paste,
laminates, cement, mortar, or the adhesive backing of tapes
and seals. Adhesives are an attractive option for binding
because they offer the ability to easily bind different
materials together, are generally inexpensive, and efficiently
distribute stress over a large area.

The purpose of adhesive testing is to determine whether or not a substance is suitable for
a particular application. Many adhesives are subject to a wide range of forces and stresses
during their lifetime but will most commonly experience shear, tension, peel, or any
combination of these. Testing adhesives using these forces will reveal its strength which
may be summarized by its tensile strength, shear strength and peel strength which are
each effectively the point at which the adhesive fails due to those forces.

Axial Torsion Test
ISO 80369
-
1 attempts to ensure that luers intended for
different medical materials and different geometries are
incompatible and cannot be accidentally connected. The test
is aimed at ensuring that incompatible luers will NOT
connect together. Axial motion is used to try to connect luer
with a max force not to exceed 70N. Then the test machine
must apply a load at a rate of 10N/sec. Then torque not
exceeding 0.12 N
-
m for no more than 90 degrees is applied
counterclockwise. Next, the maximum axial force and max
torque is held at least 10 sec. Then the connection is
disengaged with an axial force less than .02N.

This test requires a small test machine capable of combined axial and torsional motion
and loading.

Torsion Test Machines
We offer three different technologies of torsion test machines:
electromechanical, electrodynamic and servohydraulic
powered. Each torsion testing machine configuration includes
a test controller, test software, test table with rotary actuator
or motor, power source, torsion test fixtures, and torque and
angular position sensors. Our torsion testers are also known as
torque testers
.
Torsion testers or torque twist test machines
measure the torsional strength, stiffness and stress strain
properties of materials and products that are used in torsional
loading applications.

Torsional
testing machines are also used to test torsional tools for strength, fit to function
and fatigue life of devices and products such as drill tool bit tips and medical devices such
as spinal implants, metallic bone screws and other fasteners. Torque testers are used to
simulate real life service conditions and to check product quality. Torsion tests are
performed on wire, metal rod, automotive components, and implants such as catheters
and even mouse and rat bones.

For more information please
visit

http://www.testresources.net