Контрольные вопросы 290
ГЛОССАРИЙ 292
СПИСОК ЛИТЕРАТУРЫ 294
CONTENT
INTRODUCTION 3
CHAPTER I. GENERAL QUESTIONS QUALITY OF FERROUS METALS AND MANUFACTURING ROLLED 5
General information on technology for the production of rolled metal 5
History of production of rolled products 7
Rolling production technologies 10
Types and quality of ferrous metals 17
Standardization for quality improvement 23
Production and product quality management 26
The device of rolling mills 32
Characteristics and applications of rolling mills 35
Basic principles of rolling technological processes 39
Control questions 43
CHAPTER II. MAIN PROPERTIES OF PROCESSES FOR
PRODUCTION OF PREPARATIONS 45
Billet production technology 45
Modes and quality of metal heating 49
2.3 Elimination of defects 55
The temperature field of the metal when rolling a large section 62
Multilayer rolling technology 64
Combining casting and rolling into a single process 67
Speeding up the blooming process 74
Methods for calculating the compression and calibration of blooming rolls 80
Compression mode calculation 88
Calculation of the preliminary number of holidays for rolling an ingot 89
Calculation of technological parameters of rolling on a smooth barrel 92
Calculation of technological indicators of rolling on box gauges 95
Rolling technology at blank mills 100
Calibration of continuous billet mills 103
Workpiece separation in multi-layer rolling 108
Technical and economic indicators of the production of semi-finished products 114 Control questions 115
CHAPTER III. TECHNOLOGY OF PRODUCTION OF VARIETY STEELS . 117
General information on metal cutting 117
Rail and beam mills 117
Large Varietal Mills 123
Universal cross-section mill 128
Calibration scheme for the rolling of varietal steel 132
Rational modes of continuous rolling of long sections 135
Factors affecting the accuracy of long sections 137
Calibration scheme for rolling complex profiles 146
Calibration of rolls for rolling two-tee beams 149
The advantages of calibrating rolls for rolling various profiles
of continuous mid-grade mills 154
Key roll adjustment indicators 160
"Continuous" rolling 165
Calibration scheme for wire mills and rolling modes 169
Control rolling of mild steel 174
Control questions 177
CHAPTER IV. SOME ELEMENTS OF THE SHEET STEEL ROLLING THEORY 179
Strength of the working stand and strips 179
The basic equation for strip thickness 184
The concept of active roll profile formation 187
Control questions 191
CHAPTER V. THICKNESS STEEL PRODUCTION TECHNOLOGY 192
Methods for the production of plate steels 192
Brief description of the process 193
The main factors affecting the amount of compression 197
Double roller mill rolling technology 204
Vertical stand rolling technology 206
Draft rolling technology 213
Roll profiling and operation 216
Plate steel finishing 220
Major defects in plate steels 222
The development of plate rolling technology 224
Technical and economic indicators 225
Control questions 226
CHAPTER VI. TECHNOLOGY OF PRODUCTION OF HOT-ROLLED THIN- SHEET STEELS 228
General information about the production of sheets 228
General scheme of the technological process 228
Rolling technology on broadband semi continuous mills 229
Rolling technology for wideband continuous mills 232
Draft group rolling 235
Final rolling mill technology 238
Technical and economic indicators 253
Control questions 254
CHAPTER VII. TECHNOLOGY OF PRODUCTION OF COLD-STEELED STEEL SHEETS 256
General information on the production of sheet steel 256
Brief description of the process 257
Descaling 258
Technology of cold rolling in continuous mills 266
Technology of cold rolling on reversing and multi-roll mills 284
Technical and economic indicators 289
Control questions 290
GLOSSARIY 292
BIBLIOGRAPHY 294