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

Constant mesh type gear box , Constant Mesh Type Gear Box : Most of t...

Constant Mesh Type Gear Box : Most of the gearboxes on motorcycles are "constant mesh". That means all the gears are constantly meshed with one another and are always spinnin

Classification of i.c. engines - thermodynamics, Classificatio n of I.C. E...

Classificatio n of I.C. Engines: IC engines are classified as follows: 1 . Nature of thermodynamic cycles as:  Otto cycle engine, Diesel cycle engine and Dual combus

Estimate what fraction of heat loss by the fin, A tube assembly constructed...

A tube assembly constructed of Cu with an inside diameter of 1.25 cm, wall thickness of 0.8 mm and circumferential fins around the periphery. The fins have thickness of 3 mm, and a

Working stress and factor for safety working stress, W orking stress and F...

W orking stress and Factor for Safety Working Stress: Working stress is safe stress taken within elastic range of material. For the brittle materials, it is taken equal to

Connecting rod, how to design a steel connecting rod using minimum weight a...

how to design a steel connecting rod using minimum weight and thickness?

Determine the loss of information during exchange in iges, Determine the Lo...

Determine the Loss of Information During Exchange in IGES Loss of Information During Exchange : Information would inevitably be lost when information is passed between two CAD

What is forced draft fan, Q. What is Forced Draft Fan? Fan shall comply...

Q. What is Forced Draft Fan? Fan shall comply with API 673 as supplemented by the following: (para. references are to API 673). Where the intake air is unfiltered, the Vendo

Shear and moment diagrams, Shear and Moment Diagrams Determine the anal...

Shear and Moment Diagrams Determine the analytical solution for the maximum stress of the beam shown; compare with stress results from Solid Works. Draw shear and moment diagra

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