Technical Ceramics for Investment Casting

Technical Ceramics
for Investment Casting

Magma Ceramics & Catalysts
is a specialist manufacturer
of high quality, precision cast
refractory ceramic components

Formed in February 2010, following a management buyout of Dyson
Precision Ceramics, Magma Ceramics & Catalysts has become a
major manufacturer and supplier of technical refractory ceramics
to a wide variety of industries and market sectors. These include:
Glass, Superalloys, Steel making, Non-ferrous metals and many other
applications requiring high temperature refractories.

We currently operate four global manufacturing plants from our head
office based in Dewsbury, UK:

Rio de Janeiro, Brazil Dewsbury, UK Hai Guong, Vietnam
Bromborough, UK

Key to Magma’s success has been the drive and implementation
of principles such as Lean Manufacturing and Just In Time
manufacturing. Applying these techniques has enabled Magma to
focus on customer’s requirements and challenges. Combining these
concepts together with our ISO accreditations has enabled Magma to
drive down lead times and lower costs. This in turn has encouraged a
continuous drive towards process improvement meaning that Magma
can offer our customers a flexible approach to lead times whilst
achieving the same standards of high quality.

Ceramics for the Investment
Casting Industry

Magma is a leading supplier ladles and hand formed spouts.
of crucibles, ladles and spouts Ladle liners are available in
to the Investment Casting a variety of sizes and spout
industry with over 20 years’ configurations, as well as open
experience within this sector. top and t-pot designs. Choose
from our current size list or
Crucibles contact us for a custom size.
Magma’s crucibles are designed Preformed spouts provide a
to give excellent corrosion clean consistent metal pour from
and erosion resistance, good campaign to campaign and are
thermal shock resistance and a custom made to your trough
consistent performance in terms shape and furnace dimensions.
of reducing cast inclusions whilst
maximizing productivity. With Magma’s crucibles and
ladles you can expect:
With better spalling resistance • Clean melts
than most conventional • Consistent performance
materials our crucibles offer a • Excellent thermal shock
cost benefit both in terms of
process and product. Crucibles resistance
range in melting capacity from • Materials including; High
0.5kg to 3000Kg
purity Alumina, Zirconia,
Ladles and Spouts Magnesia, Fused Silica,
Magma’s Ladles and Spouts Sillimanite, Chrome-Alumina.
are manufactured from the • Durability and long life
same pre-fired materials as our • A large range of crucible sizes
crucibles, thereby reducing • Custom shape capabilities
inclusions compared to rammed from our in-house mould shop
• Foundry visits to understand
your requirements

Selection and Use
Selecting the correct crucible
for melting ferrous/non-
ferrous alloys is often viewed
as an insignificant decision
when in reality, considerable
effort should be given to this
important choice. Crucible
performance can have dramatic
effects on foundry costs and the
competitive ability of the shop.
The melting crucible can affect
the overall quality of the
castings directly through scrap
rates and it can also affect a
shop’s labour costs resulting
from frequently changed
crucibles. There are many
variables that influence crucible
performance. Please contact
Magma’s technical sales staff
for advice in choosing the right
product for your application.

For more information, please call us on +44 (0)1924 468201
or email us at [email protected]

MReaft: erial (S%iO) 2 (A%l2)O 3 HZrfOO22/( %) (C%r2)O 3 (C%e)O 2 MgO AP BD CCS MoR Material: Application
(%) (%) (g/cm3) (N/mm2) (N/mm2) Areas:

SA1 1.5 98 – – – – 17 3.1 65 – Alumina Steel ladle
nozzles

MSA3 1.4 93.5 – – – 4.4 18 3 120 – Alumina Steel ladle
Spinel wellblocks

CAL 1.6 94 – 4.4 – – 22.5 3 65 – Alumina Induction furnace
Chrome crucibles with
enhanced slag
resistance

MagB 0.3 – – – – 97 – – – – Magnesia Basic dry powder
ramming mix

M1 1.5 3 – – – 95.5 19 2.82 35 – Magnesia Crucibles, pouring
spouts for basic
slag chemistry

90V 9 90 – – – 0.15 18 2.92 98 17.2 Alumina Crucibles &
Alumina multi-use pouring
refractories

Iso 90A 0.02 8 – – – 90.2 18.5 2.88 52 20 Magnesia Isostatically pressed
Magnesia Induction melting
crucibles

Iso ABR 0.09 0.19 92 – 5.2 3.6 20 4.64 – 30 Zirconia Isostatically pressed
MS Induction melting
Zirconia crucibles, for very
high melting points,
including precious
metals

Iso S90 9 90 – – – 0.02 20 2.85 90 23 Alumina Isostatically pressed
Alumina Induction melting
crucibles

Magma Ceramics & Catalysts
Low Road, Earlsheaton, Dewsbury, West Yorkshire, WF12 8BU, UK
Telephone: +44 (0)1924 468201
Fax: +44 (0)1924 459429
Email: [email protected]
www.magmaceramics.com