Compacting or briquetting, Other Engineering

Assignment Help:

        The operation of heating a green compact to an elevated temperature is known as sintering. It is a process by which solid bodies are bonded by atomic forces. It is carried out below the melting temperature of the major constituent of the blended power. Most metals are sintered at 70% to 80% of the melting temperature.

       Following changes occur during the process of sintering :

      (i) The density of the part is increased.

      (ii) Grain boundaries are formed.

      (iii) Plasticity is increased.

      (iv) Better mechanical interlocking is produced.

      (v) Volatile materials that are present are driven off, thus producing porous product.

      The sintering atmosphere is controlled to prevent oxidation of the work. The most frequently used atmosphere are dissolved ammonia and hydrogen.


Related Discussions:- Compacting or briquetting

Derive, derive the power in case of r-l circuit

derive the power in case of r-l circuit

Discuss the heuristic search as applied to an and/or graph, Question 1 Wha...

Question 1 What is Artificial Intelligence? Discuss the two class of approaches followed for AI Question 2 Discuss the heuristic search as applied to an AND/OR Graph Ques

Problem Set, 1) An investment project requires a net investment of $100,000...

1) An investment project requires a net investment of $100,000. The project is expected to generate annual net cash flows of $28,000 for the next 5 years. The firm''''''''s cost of

Multirate filters, obtain the polyphase structure H(Z)=1-3Z^-1/1+4Z^-1

obtain the polyphase structure H(Z)=1-3Z^-1/1+4Z^-1

Pitch lock mechanism, PITCH LOCK MECHANISM The pitch lock mechanism is ...

PITCH LOCK MECHANISM The pitch lock mechanism is necessary to cater for the two fine pitch position of 'flight fine pitch' and 'ground fine pitch'. It acts as a safety device

Validation, a web application using any technology that accepts an email ad...

a web application using any technology that accepts an email address and checks if the domain of the email address exists.

Aero Performance Problem, Given data for an F-4 (W=40000 lb, S=530 ft^2, Ta...

Given data for an F-4 (W=40000 lb, S=530 ft^2, Ta@sea level=35800 lb, Mach=1.5, h=20000 ft (std day), Cd0=.0224, k=.1516) find aircraft''s specific excess power in straight-and-lev

Payback period method, Non-discounted cash flow method, Payback period met...

Non-discounted cash flow method, Payback period method In this method, time value of money is not considered. It takes into account the number of years required to recover the in

Doble titration, object:THE NORMALITY OF STANDARD FAS SOLUTION(A)N/50.find ...

object:THE NORMALITY OF STANDARD FAS SOLUTION(A)N/50.find out the strenghth and normality of fas(b) using potasium permagnettetraoxide as intermidiate compound & self indicator

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