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

Determine the heat rejection, In an engine working on Diesel cycle inlet pr...

In an engine working on Diesel cycle inlet pressure and tem are 1 bar and 17 o c respectively. Pressure at the end of adiabatic compression is 35 bar. He ratio of expansion i.e. af

Advantages-disadvantages of transparent polymeric, (a) List several advanta...

(a) List several advantages and disadvantages of using transparent polymeric materials for eyeglass lenses. (b) Cite four properties (in addition to being transparent) that are

Thrust diagrams for the beam, Thrust diagrams for the beam: Illustrate...

Thrust diagrams for the beam: Illustrate the shear force, bending moment & thrust diagrams for the beam illustrated in Figure Figure Solution Vertical compo

Define cam operated clamp, Define Cam Operated Clamp 1. The cams operat...

Define Cam Operated Clamp 1. The cams operated clamp find wide application and are fast and positive in action. 2. These should not be used where vibrations are present or w

Discover the maximum torque, Discover the maximum torque: Discover the...

Discover the maximum torque: Discover the maximum torque that may be transmitted by the shaft of 400 mm diameter, if the shear stress is not to exceed 50 N/mm 2 . Solution

Evaluate the diameter of bar, As a student engineer illustrate what design ...

As a student engineer illustrate what design consideration you would like to account for parts manufactured by machining and forging. A circular bas of 500mm length is hinghed f

Gudgeon pin-basic components of engine , Gudgeon Pin: It forms the link b...

Gudgeon Pin: It forms the link between the small end of the connecting rod and the piston. It is a small pin as shown in Figure 2.13. Figure : Gudgeon Pin

Objectives registration scheme entrepreneurship development, Objectives of ...

Objectives of the Registration Scheme They are summarized as follows: To enumerate and maintain a roll of small industries to which the package of incentives and suppor

Roof mounted fan - air-conditioning guidelines, For fan installation detail...

For fan installation detail and indicate correct structural components, drip pan, acoustical and thermal insulation. Provide special acoustical curbs for critical areas. Chec

Axis perpendicular to the vertical plane - square prism, Axis Perpendicular...

Axis Perpendicular to the Vertical Plane - square prism: Here a square prism, side of base 40 millimeter and axis 60 millimeter long is resting on the HP on its base along wit

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