Illustrate wood and silica flour, Mechanical Engineering

Q. Illustrate Wood and Silica Flour?

Wood Flour: It is ground wood particles or other cellulose materials such as grain hulls. They serve the same purpose as cereals except that they do not increase green strength as much. When required, about 1% is added.


Silica Flour: It is very fine ground silica. It is generally mixed with about twice as much conventional moulding sand to make" facing sand" and is used to surround the pattern. It thus improves the surface finish of the casting, and because of its purity, it increases the hot strength of the mould face. It also resists metal penetration and minimizes sand expansion defects.

Posted Date: 5/30/2013 6:12:45 AM | Location : United States







Related Discussions:- Illustrate wood and silica flour, Assignment Help, Ask Question on Illustrate wood and silica flour, Get Answer, Expert's Help, Illustrate wood and silica flour Discussions

Write discussion on Illustrate wood and silica flour
Your posts are moderated
Related Questions
Stroke and Clearance Volume: Stroke The distance traveled by piston from the topmost positions of it (also called Top dead centre TDC ), to its bottom most position (or

A cantilever beam of 1800 mm length is subjected to point loads of 3.5 kN, 4.3 kN, 1.2 kN and 2.8 kN at distances of 400 m, 400 m, 400 m 300 m and 300 m, respectively from the fixe

why there is a different angular velocity in the two cranks of a drag link mechanism?

Compare otto cycle with Diesel cycle: Sol.: These two cycles can be compared on the basis of either the same compression ratio or the same maximum pressure and temperature.

In hydrostatic we consider that fluids were at rest. Now we relax this consideration but with caution. We will discuss the flow of an real fluid. There are the assumptions about pe

Convert the following readings of pressure to KPa absolute, assuming that the barometer reads 760mm Hg: (a) 100 psig, (b) 8in. Hg vacuum, and (c) 76in Hg gage.


Q. What are the Specific Issues with plant Layout? There are a large number of regulations and related material that impact the operating plant. API (American Petroleum Institu


Explain the Importance of Value engineering Improve your career skills Separate "Symptoms" from "problems" Solve "root cause" problems and capture opportunities