《THE APPLICATION OF COMPUTING TECHNIQUE TO AUTOMATIC CONTROL SYSTEMS IN METALLURGICAL PIANT》

CHAPTER ONEPRINCIPLES OF CONSTRUCTING COMPUTING DEVICES1

1．Introduction1

2．Elements of analogue computers2

3．Simulating devices15

4．General principle of a digital computer operation28

5．The binary system of calculation33

6．Elements of storage and arithmetic units in computers37

7．Analogue-to-digital conversion51

8．A data logging system56

CHAPTER TWOAPPLICATION OF COMPUTING TECHNIQUE TO AUTOMATIC CONTROL SYSTEMS63

1．Some features of metallurgical processes affecting their control by computers63

2．Analogue computing devices in the control system of a sintering plant67

3．Analogue computing devices in a blast furnace control system82

4．Analogue computing devices in the system controlling combustion processes in an open-hearth furnace89

5．Analogue computing devices in the system for controlling the power in electric arc furnaces100

6．Computing devices in the automatic control system for the screw-down of a reversing hot mill105

7．Computing devices in the system controlling the emerging speed of the metal in a reversing hot mill118

8．Computing devices in the control system for metal-shears122

9．Computing devices in the gauge control system for the hot strip-rolling process135

10．Computing devices in the gauge control system for the cold-rolling process150

11．Computing devices in the tension control system166

12．Automatic programming and automatic stoppage of a reversing cold-rolling mill175

13．Automatic setting of the welding current in an electrical pipe-welding mill181

14．Computing devices in the system control for straightening periodic profiles185

15．The use of digital technique in sorting and recording production187

16．The application of computing technique in automatic measuring instruments196

17．The use of digital computers for dispatcher control205

18．The incorporation of a digital computer in the control system of a production process214

References219

Index223