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Spelling resistance: The breaking or cracking or peeling off the refractory is known as spelling. A good refractory must show a good resistance to thermal spelling. Thermal spelling can be decreased by minimizing the development of internal stress by:
(1) Using refractory with high porosity, good thermal conductivity and low coefficient of expansion.
(2) Avoiding sudden temperature changes.
(3) Proper furnace design.
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CLASSIFICATION OF CHEMICALS IN THE STORE Your Counsellor will give you names of any five chemicals. You fill up the report in tabular form (Table) indicating the name of the ch
What is Spheroidsing Spheroidsing is the method that applies more to the hypereutectoid steels (above 0,8% C). The process includes heating the metal to between 600oC and 65
Asxdxxwrefdrtszsdsdreessek question #Minimum 100 words accepdhgugfhjugydt76uejjerugrgrted#
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What are the chief characteristics of ferro-electric materials Ferroelectric materials have following characteristics: a) They have a huge dielectric constant which is non-
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