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Q. Can you explain about Fuel Oil and Dextrin?
Fuel Oil: It improves the mould ability of sand.
Iron Oxide: It develops hot strength.
Dextrin: It increases air setting strength, toughness and collapsibility and prevents sand from drying rapidly. During pouring of molten metal, it gasifies, thus producing extra space between the grains without any grain distortion.
Molasses: It is the by product of sugar industry. It enhances the bench life of sand and imparts high dry strength and collapsibility to moulds and cores. Due to high temperature in the mould; it develops CO2 which sets up a hardening action of the mould.
Service duty point: 3 m3/h Backwash duty point: 9 m3/h Part (a) What is the speed of the pump to achieve the service and backwash flow rates ? Part (b) What would be the best
a) What is Interference and show the relation for the minimum number of teeth required for a wheel. b) Show the relations for Maximum length of path of contact and Maximum lengt
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Larson-Miller parameter: For material of example of calculate life in hours at temperature of 900oC, and at σ = 20 MPa. Solution Larson-Miller parameter is given by
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A piece of Al weighing 6 kg and initially at a temperature of 300 O C is suddenly immersed in a fluid at a temperature of 20 O C. The convectice heat transfer coefficient is 58 W/m
One can increase the toughness of a ceramic material by introducing fibers to the structure of the ceramic and create a ceramic-matrix composite. However, unlike other fiber-reinfo
Describe vibration, How to calculate vibration?
A steel member supported by a tie bar has a load of 15 000 lbs on it. If the force on the steel member of 1.2 in 2 cross section is 14,180 lbs and the force on the tie bar of diam
Q. What is Injection moulding? An important industrial method of producing articles of thermoplastics is injection moulding. The moulding material is loaded into a hopper from
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