Welcome
to Scienglass
BUY DIRECT FROM MANUFACTURER
* DO NOUY RINGS * WILHELMY PLATES
*TENSIOMETERS *SURFACE TENSION MEASUREMENT ACCESSORIES
*SCIENTIFIC AND RESEARCH GLASS TECHNOLOGY
DU NOUY RINGS are sometimes
simply know as PLATINUM RINGS and we believe our quality
is of the very best. DU NOUY RINGS are normally available
ex stock. DU NOUY RINGS can be supplied in quantities from
as small as one off or in large numbers to customers’ needs.
DU NOUY RINGS are normally made to British Standards requirements
but can be made to your own design. DU NOUY RINGS consist
of a ring with a hook/or other support made in platinum
iridium alloy.
WILHELMY PLATES can also be
supplied to a standard or to your own design. WILHELMY PLATES
are small rectangles made in either glass or platinum iridium
alloy.
TENSIOMETERS
usually come in the form of a very sensitive balance measuring
relatively small forces. Usually scientists use a delicate
mechanical balance or fine electronic balance.
These
three accessories have individual uses in measuring surface
tension in liquids of different viscosities. They are made
to very precise weights and surface areas thereby fulfilling
the requirements of the standardisation agencies. Because
of their precise surface area when correctly used with a
Tensiometer they will give a standard coefficient of surface
tension for a liquid sample. They can obviously all be used
for comparative batch testing.
The mode of operation
is that the accessory (plate or ring) is attached on to
the balance and carefully lowered over a short distance
to connect with the surface of the liquid under test. A
meniscus forms between the Ring or Plate and the liquid
surface. A precisely defined force is then applied by lifting
the Ring or Plate up from the surface. The Balance or Tensiometer
then reads the force necessary to break the meniscus. This
represents the coefficient of surface tension of the sample.
The testing laboratories of industries producing specific
liquids commonly use this equipment, eg lubricating oils,
inks, coatings, food production industries, paints, situations
where a reproducible test is required giving information
on interfacial tension, miscibility, solubility, emulsification
etc, and are commonly used in University and research teaching.
RESEARCH PROJECTS BY SCIENGLASS:
- Glass heart simulator to facilitate the development
of new heart valves facilitating observation function.
- A 5 metre Jacketed Glass Plasma Tube for research
on fusion and plasma technology.
- Large Electrochemical Vessels and glass Lasers of
various designs.
- Medical Research glassware.
- Assist in design and construction of glass research
equipment.
ANALYTICAL INSTRUMENTS
ACCESSORIES FOR SURFACE TENSION
MEASUREMENT
SCIENGLASS makes and supplies
components to many industrial companies who are manufacturing
and marketing their own complex instruments. In the initial
stages of instrument development we are happy to be consulted
and give advice on the glass technology involved or work
from your drawings bearing in mind that there are approximately
one million glass formulas.
Analytical instruments
for specific chemical analysis in laboratories such as forensic
science, gass analysis apparatus etc, where glass purity
is essential.
SURFACE TENSION
MEASUREMENT
The Food Industry uses various
tests to maintain reproducible quality and appearance. This
can involve instruments for measuring surface tension. Colorimeters
for reproducible appearance and of course biological apparatus
to monitor bacterial content etc.
ENVIRONMENTAL SCIENCE
SCIENGLASS produce some
of the glass/metal instruments used in Environmental Science,
e.g.
GLASS TO METAL SEALS INCLUDING
RARE METAL TECHNOLOGY, VACUUM AND CRYOGENIC WORK.
Glass engineers frequently become involved in rare metal
technology as sophisticated designs require metals with
specific properties to be used, e.g. lasers use electrodes
such as Tantalum, Tungsten, Platinum, Molybdenum etc.
Platinum/iridium alloys are used where purity plus rigid
strength is required as in the fabrication of surface tension
equipment etc.
Very fine or microscopic components
are sometimes required as for example Langmuir probes in
wind tunnel experiments where fine Tungsten wire is strung
on a glass sub frame. By electrolysis in a suitable alkali
the Tungsten can be reduced evenly to as little as 0001”
diameter.
Research glass fabrication is all about
techniques developed by individual technicians.
INDUSTRY
As well as examples
mentioned above SCIENGLASS is sometimes asked to supply
custom built scientific apparatus in metals, acrylics, ceramics
etc. High quality welding of common and rare metals can
often be supplied. Fabrication of rare metal electrodes
such as Tantalum, Niobium, Platinum and Platinum Iridium
etc is a speciality.
EXPORTS
SCIENGLASS exports to Spanish
speaking countries as the Directors are experienced in the
language and enjoy both cultural and scientific contacts.
If you prefer please use Spanish to explain your requirements
or make enquiries.
We also export to many other countries
and are always happy to give quotations. Please do not hesitate
to email enquiries @ scienceglass.com
for more information.
TELEVISION
AND FILM
SCIENGLASS
is frequently consulted on the manufacturing of glass items
used in these industries particularly in the television
advertising field where glass has proved to be an immensely
useful material. Speed of supply is essential as film sets
can cost many thousands of pounds per day to maintain. We
therefore endeavour to meet Directors’ deadlines, which
may sometimes be within hours.
DEFENCE INDUSTRY
The
UK Defence Industry has always been among the world’s best.
Glass engineering and technology plays a significant part
in this.
Corrosion Science is widely used in rocket
science and research, which involves a wide range of specialised
devices for measurement of corrosion rates in metals and
other substances. This necessitates an inventive and creative
approach in the construction of glassware used in the field.
Image Tubes such as Image Intensifiers and other optical
systems and vacuum tubes are also commonly used.
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