Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Plastic molds are made of plaster of Paris (gypsum) or calcium sulphate, talc and silica flour is added in the plaster of Paris to improve strength and to control the time required for the plaster to set. These ingredients are mixed with water and the resulting slurry is poured over the pattern.
The plaster sets within 15 minutes usually. After the plaster sets, the pattern is removed and the mould is dried at 120°C -260°C to remove the moisture. The mould halves are assembled to form the mould cavity and are preheated to about 120°C. The molten metal is then poured into the mould.
Patterns for plaster moulding are generally made of Aluminum, thermosetting plastics, brass or zinc alloys. Wood patterns are not appropriate for producing a large number of mould because they are repeatedly in contact with the water based plaster slurry.
applications of constant current biasing
Q. With necessary theory explain the formation of spectrum by a plane transmission grating when composite light falls on it OR How does plane diffraction grating for
Function setxor and set function unique: The function setxor receives two vectors as input arguments, and returns a vector having all the values from the two vectors which are
QUESTION: Modelling of phase array antenna for medical imaging. INSTRUCTION: The expert must provide a correct mathematical model solution and detail by detail steps of how it can
why practical engineering materials are homogeneous and isotropic?
a hexagonal prism of 40mm side length of base and height 80mm is resting on HP on its base with two edges of base is parallel to horizontal plane. A square hall of equally inclined
ME 312 Project: Design for Vibration and Shock Suppression (Due Sunday 6/5/2012) Introduction To protect the electronic control module from fatigue and breakage, it is desirable
the amount of cold working metal can withstand is directly related to which properties? name two and also discuss the effect that cold working has upon these properties?
Expertsmind.com brings you unique solution in Electrical Engineering - Jupiter and Saturn are made almost entirely of hydrogen and helium with
Thrust calculation: The amount of thrust produced depends upon two things:- The MASS of air which is moved rearwards in a given time, the ACCELERATION imparted to the air.It
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd