Explain sand and moulding sands, Mechanical Engineering

Assignment Help:

Q. Explain Sand and moulding sands?

Sand according to the amount of clayey matter they contain, the moulding sands are classified as:

• Silica sand: Up to 20% clay.
• Lean or weak sand: 2 to 10% clay
• Moderately strong sand: 10 to 20% clay
• Strong sand: Up to 30% clay
• Extra strong sand: Up to 50% clay.

There are three types of sand used for making moulds: natural, synthetic and chemically coated.


Related Discussions:- Explain sand and moulding sands

Maximum stress failure criterion, a) Determine the value of σ 0 to cause f...

a) Determine the value of σ 0 to cause failure when θ=30°, according to the maximum stress failure criterion.  Consider both σ 0 > 0 and σ 0 e.g. "failure in longitudinal tens

Show continuity equation in cylindrical coordinates, Show continuity equati...

Show continuity equation in cylindrical coordinates. Also list the assumptions made. A fluid flow is given by V = xy 2 i - 2yz 2 j - (zy 2 - 2z 3 /3) k Determine acceleration

Find out the forces in members, Find out the forces in members: A brac...

Find out the forces in members: A braced support ABC is loaded as illustrated. Find out the forces in members AB, BC, BD and AD by the method of joints. Check out the results

Factors in the design of high temperature materials, Q. Factors in the desi...

Q. Factors in the design of high temperature materials? There is typically little correlation between room temperature strength and high temperature strength of creep-resistant

Theory of machines, What'' is balancing and vibration in machines Need of ...

What'' is balancing and vibration in machines Need of balancing? Causes of vibration and their harmful effects and remedies?

Thermodynamic process - thermodynamics, Thermodynamic process - Thermodynam...

Thermodynamic process - Thermodynamics: Thermodynamic system undergoes changes because of the energy and mass interactions. Thermodynamic state of system changes because of th

Types of stresses, Types of stresses: In general stress is divided in ...

Types of stresses: In general stress is divided in to three group as: various types of stresses may be classified as: 1. Simple or direct stress (Tension, Compressi

Explain about hydrostatic test, Q. Explain about Hydrostatic Test? All ...

Q. Explain about Hydrostatic Test? All paragraph must be met when the hydrostatic test is employed. UG-99(b), including footnote 32, shall be considered to be the standard hyd

Estimate the rate of flow, At a sudden enlargement of a water main from 240...

At a sudden enlargement of a water main from 240 mm to 480 mm diameter, the hydraulic gradient rises by 10 mm. Estimate the rate of flow.

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