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

Spring, direct shear and torsional shear of the coil

direct shear and torsional shear of the coil

Bucket conveyors, Bucket conveyors are used to moves the granular powde...

Bucket conveyors are used to moves the granular powdered or liquid materials. The buckets may be mounted on a chain or a belt. The movement may be vertical or flat. The ver

Wedge friction, WEDG E FRICTION: Explain how wedge is used for raisi...

WEDG E FRICTION: Explain how wedge is used for raising heavy loads. Also give principle of it. Sol.: Principle of wedge: A wedge is small piece of material having two

CUPOLA FURNACE, WHAT IS THE HISTORY AND COMPOSITION OF CUPOLA FURNACE?

WHAT IS THE HISTORY AND COMPOSITION OF CUPOLA FURNACE?

Thermodynamics., First law of thermodynamics applied to flow process

First law of thermodynamics applied to flow process

What is bolt elongation, Q. What is Bolt Elongation? The required bolt ...

Q. What is Bolt Elongation? The required bolt elongation Δ 1 may be calculated by the equation (7): Δ 1 = 3.25 * 10-8 * SB * L0 (in) (7) Where L 0 is the effect

Calculate the length of plastic deformation, Calculate the length of plasti...

Calculate the length of plastic deformation: Calculate the length of plastic deformation along 45o in case the applied stress is 63.25% of yield stress in the plate of abov

Design, please help me to calculate the diameter of a brake drum for using ...

please help me to calculate the diameter of a brake drum for using in a "brake drum dynamometer engine test rig" the engine specs are as follows: - 6Hp single cylinder 4stroke engi

Lubrcants, what is the difference between mineral and vegetable oils in ter...

what is the difference between mineral and vegetable oils in terms of oiliness and oxidization?

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