9
Jyalox High Alumina Ceramic stress relieving interlocking insulators for Pre - and Post - Heating.
In welding large structures, pipe works and reaction
vessels etc. it is a commmon practice to locally
employ electrical heating devices to raise the
temperature of the metal sections prior to welding and
to control the sudden fall in temperature after the area
is welded.
Jyalox ceramic has excellent electrical properties
such as insulation and heat dissipation which ensure
safe operation, quick and proper heating of area at the
elevated temperatures.
Jyalox ceramic bead insulators available for construction of stress relieving flexible electrical heater mats.
The electrical device is in the form of flexible heater
mat, constructed with alumina ceramic interlocking
beads. The electric heating elements are supported
by ceramic beads which insulate the device from the
structure being welded.
Flexible electrical heating mats find the widest use in
stress relieving applications, as the interlocking
pattern of ceramic beads allow maximum fexibility to
the mat, to cover the heating element properly from
exposure to the area required to be heated up, such
as concave, convex and flat surfaces of vessels,
pipes etc. Several mats can be connected together to
cover large surface areas of vessels, pipes etc
required for stress relief treatment.
Jyalox ceramic stress relieving bead insulators are
mechanically tough, strong and wear resistant to
/Ii. JYOTI CERAMIC INDUSTRIES PVT. LTD.u C-21, NICE, Satpur, Nashik - 422 007, INDIA.
withstand abuse of rough handling of heater mats
commonly experienced while in use in heavy
construction industry.
Our design engineers are always at your service to
assist you for use of insulators from the standard
range. We can also develop custom design insulators
for stress relieving applications if the required
quantities are substantially large for economically
viable production.
All the above features coupled with good mechanical
qualities make Jyalox beads an ideal carrier of the
heating element.
DIMENSIONS OF INSULATORS
JY-100
JY-200
i..-.=-_____,I :·
-9®
JY-400
ITT%�
I I 010.32
JY-500
I I 03.96
JY-700
PHYSICAL AND CHEMICAL PROPERTIES OF
JYALOX-95P CERAMICS
• Nominal Composition : 95% Al20
3 Chemical Analysis
• Colour : Pink Alp3 95.00%
• Specific Gravity : 3.70 - 3.75 Si02
1.41% • Flexural Strength : 3250 kg/cm2 MgO 1.35% • Coefficient of linear cao 1.16% thermal expansion Cr
20
3 0.75% (20-1 ooo°C) : 8.8 X 10·6/°C
• T hermal shock Nap = 0.16%resistance Bao 0.07% (Down shock VT ) : 160°c Fe
20
3 ·o.o4%
• T hermal Conductivity Ti02
= 0.03% (20°C) : 24 W/M°K Others= 0.03%
1ir r-T�I: (0253)-3501-2Di3381729, 351251 Fax: (0253) 350023, 351208. Email: [email protected]. Website: www.jyoticeramic.com
J Overseas Sales Offices :
L.
U.S.A.: Techno-Ceramic, Inc., P.O. Box 333, New Hampton, NY 10958, USA Tel.: ++1 - 845 - 547 2219/2220 Fax: ++1 - 845 - 547 2221 E-mail : [email protected] Jyoti Ceramic GmbH Frankenstr. 12, 90762 Fürth, Germany.Tel. : +49 (0) 911 78 71 20 83 / 84 / 85 Fax : +49 (0) 911 78 71 20 82E-mail : [email protected] http://www.jyoticeramic.com
