Describe dry and wet parting materials, Mechanical Engineering

Assignment Help:

Q. Describe Dry and wet parting materials?

Dry parting materials: These are applied by dusting. These include : charcoal, ground bone and limestone, lycopodium(a yellow vegetable matter), tripolite(a silicate rock), ground nut shells, Talc(Magnesium silicate,3MgO,4SiO2.H2O)and Calcium phosphate.

Wet parting materials: These are not used with wooden patterns, but are used mostly in machine moulding when metal patterns are used. They are wax based preparation, petroleum jelly mixed with oil, paraffin and stearic acid.


Related Discussions:- Describe dry and wet parting materials

Couple, What are properties of couple

What are properties of couple

Heat, how to prove heat is a path function?

how to prove heat is a path function?

Determine the carbon content of steel, Determine the carbon content of stee...

Determine the carbon content of steel: A hypoeutetoid steel which was cooled slowly from γ-state to room temperature was found to contain 10% eutectoid ferrite. Suppose no cha

Concept of absolute thermodynamic temperature scale, (a) Illustrate the con...

(a) Illustrate the concept of absolute thermodynamic temperature scale on the basis of second law. (b) In a Steady flow apparatus , 13.5 KJ of work is done by each kg of fluid.

Matlab Question, help write the matlab code desired: The sine function can ...

help write the matlab code desired: The sine function can be evaluated by the following infinite series as (where the angle x is given in radians): xsinx = x-(x^3)/3! + (x^5)/5! -

Thin uniform wire bent - centre of gravity, Thin uniform wire bent - centre...

Thin uniform wire bent - centre of gravity: Find out the C. G. of the thin uniform wire bent into shape ABC as illustrated in Figure. Solution Assume G be the loc

Counterclockwise direction, Figure presents a gearbox that you are going to...

Figure presents a gearbox that you are going to design. The input shaft rotates at n1= 1500 rpm in a counterclockwise direction. The gearbox is needed to be designed sothat the out

Calculate the overall fraction defective from all of sample, Calculate the ...

Calculate the overall fraction defective from all of sample: ABC insurance company desires to design a control chart to check whether insurance claim forms are being correctly

Working of gasifier combined cycle power plant, With the help of a neat dia...

With the help of a neat diagram illustrate the working of Gasifier combined cycle power plant. Describe with the help of neat diagram the working of Pressurised water reactor nu

Evaluation of the internal energy of steam - thermodynamics, Evaluatio n o...

Evaluatio n of the Internal Energy of Steam: It is actual heat energy stored in steam above the freezing point of water. We know enthalpy = internal energy + pressure ener

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd