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

Measurement of river water levels, Q. Measurement of river water levels? ...

Q. Measurement of river water levels? In designing bridges and other engineering structures on rivers, maximum discharge and highest flood level form essential data for design

The parts and design of the pocket amp, The problem: - Deaf blind peop...

The problem: - Deaf blind people have a huge problem when crossing the streets. They always need assistance from a sighted person or a trained dog to cross the street. There i

Terminology used in combustion engine, TERMINOLOG Y: 1 .     Top de...

TERMINOLOG Y: 1 .     Top dead and Bottom dead Centre: These are 2 extreme positions between which the piston reciprocates inside the cylinder. TDC and BDC have relevance

Hardness of water, hardness of bore well water is less than sea water .ju...

hardness of bore well water is less than sea water .justify

Types of tool and equipment , TYPES OF TOOL AND EQUIPMENT: We can classify...

TYPES OF TOOL AND EQUIPMENT: We can classify the required tools and equipment into following four categories to understand their uses : General tools, Measuring equipm

What are advantages and limitations of job evaluation, a) Describe producti...

a) Describe productivity. Give comparison of production and productivity. b) Write down characteristics of batch production. c) What are advantages and limitations of job eva

Define pinion cutter generating process, Define Pinion Cutter Generating Pr...

Define Pinion Cutter Generating Process? It is shown in diagram and it is same as rack cutter process, and instead of using a rack cutter it uses a pinion to generating the too

Engine keeps on running after ignition is switched off, If Engine Keeps on ...

If Engine Keeps on Running after Ignition is Switched Off Causes of Problem Remedy Pre-ignition due to very hot spark plug used

Determine the apparent range of the target - radar system, Consider radar w...

Consider radar with a PRF of 5 kHz. What is the maximum unambiguous range R ua of this radar, in km?  If a target is located at a range of 50 miles, how many pulses will the r

Working of lacashire boiler, Working of lacashire boiler: WORKIN G: ...

Working of lacashire boiler: WORKIN G: Water is filled through feed check valve. On burning fuel over grate, the hot gasses are produced which move in flue gas tubes.

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