普通中等专业教育机电类规划教材 热加工专业英语PDF电子书下载

PART ONE METALLIC MATERIALS RUDIMENTS 1

Unit 1．Metal and Civilization 1

Reading Material:Iron and Its Alloys 5

Unit 2．Metals and Ferrous Metals 7

Reading Material:Non-ferrous Metals and Their Alloys 10

Unit 3．Steel Manufacturing 13

Reading Material:Making Iron 15

Unit 4．Mechanical Properties of Metals 17

Reading Material:Hardness 21

Unit 5．Crystal Structure of Metals 22

Reading Material:The Structure of Real Metals 27

Unit 6．The Fe-Fe3C Equilibrium Diagram 29

Reading Material:Crystallization of Metals 33

Unit 7．Metallographic Examination 36

Reading Material: Microscopy 40

Unit 8．The Plastic Deformation of Metals 43

Reading Material:Recovery and Recrystallization 46

PART TWO CASTING TECHNOLOGY 49

Unit 1．The Technology of Casting 49

Reading Material:Historical Development of Founding 53

Unit 2．Moulding and Coremaking 55

Reading Material:Moulding Sands and Core Sands 60

Unit 3．Casting Design 62

Reading Material:The Gating of Castings 65

Unit 4．Moulding Machines 67

Reading Material:Sand Preparation and Systems 70

Unit 5．Melting 73

Reading Material:Other Types of Furnaces 77

Unit 6．Die Casting 80

Reading Materials:A．Centrifugal Casting 84

B．Precision Investment Casting 85

C．Permanent-mold Casting 86

Unit 7．Inspection 87

Reading Material:Sand-casting Defects 90

PART THREE WELDING 93

Unit 1．What is Welding 93

Reading Material:What is a Weld 95

Unit 2．Gas Welding 97

Reading Material:Type of Flame and Uses of Each Type 99

Unit 3．Arc Welding Basic 101

Reading Material:Arc Welding Machines 105

Unit 4．Shielded Metal-Arc Welding 106

Reading Material:Electrodes 109

Unit 5．CO2 Welding 111

Reading Material:Summary of Gas-shield Arc Welding 114

Unit 6．Resistance Welding 117

Reading Material:Special Methods of Welding 118

PART FOUR HEAT TREATMENT OF METALS 121

Unit 1．Heat Treatment 121

Reading Material:Heat Treatment of Alloy Steels 123

Unit 2．Phase Transformations in Heating Steel 126

Reading Material:Features of Supercooled Austenite Transformations(TTT diagrams) 130

Unit 3．Annealing of Steel 132

Reading Material:Normalizing of Steel 134

Unit 4．Hardening of Steel 136

Reading Material:Tempering of Steel 138

Unit 5．Carburizing and Nitriding 140

Reading Material:Induction Heating 143

Unit 6．Stainless Steels 144

Reading Material:Tool Steel 146

PART FIVE FORGING 150

Unit 1．Heat Treatment of Steel Forgings 150

Reading Material:Simple Instroduction of Forging Equipment 153

Unit 2．Materials for Forging 155

Reading Material:Classification and Brief Description of Metal Forming Processes 158

REFERENCES 161