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!
Q. Explain the Chaplets.
OR
When are chaplets required in moulding practice? What is the material of the chaplets?
Ans. Chaplets : Chaplets are metal spacers used for supporting such large and odd shaped cores which cannot be adequately supported by their own core prints. They are placed in a mould between the mould face and the core. As the mould is filled up with molten metal the chaplets are surrounded by it and ultimately fused into it. The chaplet should be such that its head is larger enough to provide large bearing surface and this stem to fuse quickly into the molten metal. But this happens under ideal conditions only. In normal cases usually complete fusion does not occur, but the chaplet is very tightly gripped by the surrounding metal.
Material of the Chaplets
The material of the chaplet must conform to the molten metal or alloy being cast in order to effect proper fusion. For iron or steel castings, the chaplets are made of tin plate and low carbon steel. So the material of chaplets should be the same or very nearly the same as that of the casting to be made. The surface of the chaplets must be clean, without any trace of corrosion, moisture or oil. Chaplets are shot peened to increase their compressive strength and then tinned before use. Clean chaplets fuse well with the metal and do not cause the formation of holes and discontinuities.
Compressor characteristics: When a compressor is designed it is essential to establish the points at which it is likely to surge. Tests are carried out to determine the relati
Pls solve the problem 13-7 in Statistical Quality control by Montgomery
how todays manufacturing industry lagging with system engineering approaches
AUTOMATIC SYNCHRONISING: Automatic Synchronisation uses engine driven synchronising alternators to detect electrically any increase or decrease in a slave engine's speed. Ea
how does operations reseach enable in revealing new problems
External air tappings: Engines vary as to the number of external air tappings and their usage. The following notes are taken from the Pratt and Whitney JT9D but have been simp
A car battery is of 12 v. eight dry cells of 1.5 v each connected in series can give 12 v. but such cells are not used in starting a car. why?
Q. Define elastic and plastic deformation and differentiate between them. Ans. Elastic deformation : Elastic deformation is that part of the deformed material, when the
Expertsmind.com brings you unique solution in Electrical Engineering Seat belt warning system Seat belt warning system is developed to cut off the car’s ignit
what are the components, applications, benefits and drawbacks of control engineering?????
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