METAL SCIENCE, METALS THERMAL TREATMENT EQUIPMENT AND TECHNOLOGY DEPARTMENT
| 1. | thermal treatment | |
| 2. | manufacture | |
| 3. | to apply | |
| 4. | wear resistance | |
| 5. | pre-set properties | |
| 6. | an alloy | |
| 7. | metal science | |
| 8. | a research institute | |
| 9. | high frequency | |
| 10. | impulse heating | |
| 11. | a workshop | |
| 12. | an engineer heat-treater | |
| 13. | to implant | |
| 14. | corrosion resistance | 糿 |
| 15. | mild |
HEAT TREATMENT OF IRON AND STEEL
| 1. | impurity | |
| 2. | to alter | |
| 3. | quenching treatment | |
| 4. | tough (toughness) | ( ) |
| 5. | hard (hardness) | () |
| 6. | strong (strength) | () |
| 7. | brittle (brittleness) | () |
| 8. | soft | |
| 9. | ductile | , () |
| 10. | malleable | |
| 11. | carbon content | |
| 12. | crystalline structure | |
| 13. | magnifying glass | |
| 14. | x-ray examination | |
| 15. | specimen | |
| 16. | to rust |
HEAT TREATING FURNACES
CONTINUOUS FURNACES
| 1. | a heat treating furnace | |
| 2. | manual control | |
| 3. | installation | |
| 4. | a working chamber | |
| 5. | annealing | |
| 6. | normalizing | |
| 7. | spheroidizing | |
| 8. | tempering | |
| 9. | carburizing | () |
| 10. | quenching | |
| 11. | stress relieving | |
| 12. | uniform temperature | |
| 13. | to prevent | |
| 14. | infiltration | |
| 15. | a quench tank | |
| 16. | a batch type furnace | 䳿 |
| 17. | a continuous furnace | 䳿 |
| 18. | auxiliary equipment | |
| 19. | zone heating and cooling | |
| 20. | a rotary-hearth furnace | ( , ) |
| 21. | a roller -hearth furnace | |
| 22. | casting | , |
| 23. | forging | |
| 24. | a conveyor-type furnace | |
| 25. | accurately | |
| 26. | abrasion |
SOLID STATE PHYSICS
| 1. | solid state physics | |
| 2. | a decisive factor | |
| 3. | ferrous metals | |
| 4. | non-ferrous metals | |
| 5. | pure metal crystals | |
| 6. | lattice vibrations | |
| 7. | earth's crust | |
| 8. | ore | |
| 9. | metal-working | |
| 10. | impact | |
| 11. | drawing | |
| 12. | rolling |
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PHYSICS OF METALS
| 1. | physics of metals | |
| 2. | an applied science | |
| 3. | liquid | |
| 4. | gaseous media | |
| 5. | non-destructive testing | |
| 6. | nitric acid | |
| 7. | to withstand |
SOLID STATE PHYSICS AND CHEMISTRY
| 1. | to emerge | |
| 2. | a crystal structure | |
| 3. | x-ray diffraction | |
| 4. | band theory | |
| 5. | point defects | |
| 6. | a semiconductor | |
| 7. | crystal defects | |
| 8. | grain boundary | |
| 9. | disorder in crystals | |
| 10. | irradiation | |
| 11. | demand | |
| 12. | supply |
POWDER METALLURGY
| 1. | powder metallurgy | |
| 2. | charge | , |
| 3. | pressing | |
| 4. | s intering | |
| 5. | porous (porosity) | () |
| 6. | toeliminate | , |
| 7. | exact dimensions | |
| 8. | pressure treatment | |
| 9. | spraying | |
| 10. | purification | |
| 11. | reduction | |
| 12. | water solution | |
| 13. | a protective medium | |
| 14. | surgical instruments | |
| 15. | a catalyst |
ADVANTAGES AND DISADVANTAGES OF POWDER METALLURGY
| 1. | to obtain | |
| 2. | density | |
| 3. | ferrous powders | |
| 4. | stainless steel | |
| 5. | loss of material | |
| 6. | fabrication | |
| 7. | to extract |
COAL UTILIZATION IN THE STEEL INDUSTRY
