Chapter6ba

Chapter6ba - _ Materials & Processes in Manufacturing...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
©2003 Bil Young 1 ME 151 Chapter 6 Ferrous Metals and Alloys ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bil Young 2 Introduction Figure 6-1 Page 106 ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bil Young 3 Introduction Metals are example of a __________________ material (The materials final properties are affected by the processing history) Initial production and solidification dictate purity levels, contaminants, and structural features that can be transmitted to the final product Initial processing influences future operations and final product _________ Production of Ferrous Metals Pig Iron - Ore, Limestone, Coke (carbon), Air Composition - Carbon 3.0 - 4.5 % Sulfur 0.05 - 0.1 % Manganese 0.15 - 2.5 % Phosphorus 0.1 - 2.0 % Silicon 1.0 - 3.0 % Pig Iron is: Processed into steel (largest percentage) ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
©2003 Bil Young 4 Production of Pig Iron and Steel Source: ASM Metals Handbook ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bil Young 5 Steel Manufacturing The manufacture of steel is an _______________ that decreases amount of carbon, silicon, manganese, phosphorus and sulfur in a mixture of molten pig iron and steel scrap Air or oxygen passes over or through the molten metal to drive a variety of refining reactions and burn out impurities Basic Steel Manufacturing Processes • Open-Hearth Furnace • Oxygen Furnace • Electric Arc Furnaces Refining (Secondary Refining) • Molten metal transferred to ladles • Fine tune chemistry and temperature • Improve steels cleanliness Solidification • Direct cast to shape • Solidified into a form suitable for further processing Produce Ingots Continuous Casting ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ©2003 Bil Young 6 Ingot Processing Contaminants rise to top Shrinkage occurs in region of last
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/19/2008 for the course ME 151 taught by Professor Alant.male during the Spring '08 term at Kentucky.

Page1 / 7

Chapter6ba - _ Materials & Processes in Manufacturing...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online