1. In this paper, technology of nitriding steel is presented.

2. Paste ion chromizing by ion nitriding furnace was introduced.

3. To increase production capacity of nitriding ferroalloys, reducing production cost, PSA nitrogen plant is selected.

4. The company's nitriding process is divided into:gas soft-nitriding, MGN and gas rigidity-nitriding.

5. The results show that the new fluid nitriding process, which the key component is the fluid bed reactor, could make synthesis condition assuasive , low cost and good effect.

6. According to the working characters of the ion nitriding furnace, ion carburizing furnace and ion metallizing furnace the peculiar control way and many 555 time base chips were used in this circuit.

7. The plasma nitriding process, the service condition, the selection of material and the plasma nitriding processing of the large-scale automobile cast iron dies were reviewed and discussed.

8. Liquid nitriding utilizes molten cyanide salts and, as in gas nitriding, the temperature is held below the transformation range.

9. Because the liquid nitriding the liquid and the work piece direct conduction heating, reduced the work piece heating-up time, raised the azotize speed.

10. Research on the dielectric barrier discharge nitrogen nitriding at atmospheric pressure have consumedly progressed.

11. The results show that nitriding rate and nitridation reaction rate constant are improved with the increase of nitridation temperature and time.

12. It is suitable for secondary nitriding process to promote nitriding reaction.

13. Plasma nitriding of AISI 316 austenitic stainless steel in the condition of chromium ion immersion.

14. In this paper, technology nitriding quenching of 45 steel is presented.

15. It is obvious that the low temperature nitriding process improve the abrasion - resistance of metal materials.

16. The gas nitriding process control systems are designed to provide a fully automatic operation.

17. Plasma nitriding has the advantage that it is easy to stop the process, in contrast to gas nitriding and especially to salt bath nitriding.

18. Plasma Nitriding Plasma can accelerate the reactions by increasing the energy of nitrogen ions and additionally activating them as a result of cathode sputtering.

19. The process comprises: the preparation before nitriding, the preparation period, the temperature-rise period and the temperature-fall period of the nitriding process.

20. After nitriding, the abradability of the boring axis is increased greatly.

21. It possesses masses of import machining centre , turnery centre, Nc hobbing machine, gear shaper , gear grinder , Vacuum ion nitriding technology and advanced assembly flow line.

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22. Case hardening. Hardening of the outer surface (or 'case') of a steel component by a carburizing or nitriding process; used to improve wear and fatigue resistance.

23. By means of extensive tests on nitrided and case hardened gears, it was attempted to discover the possibilities and the limits of nitriding for gears.

24. The experimental results showed that the presence of RE could obviously accelerated nitriding process of LD steel.

25. The result shows that the argon gas can effectively decrease the hardness gradient and improve the thermal fatigue behavior of ion nitriding steel H13.

26. The application, influence factors and process control of four kinds of heat treatment methods including tempering, carburizing, nitriding and induction quenching are analyzed.

27. The possible mechanism of the energized function of rare earth elements in the plasma nitriding process was discussed, an"atmosphere-channel"model was given.

28. Dehydrizing processes and mechanical properties of samples after gas nitriding were studied .

29. Alloy steel was nitrided under the atmosphere of pure nitrogen, using the ion nitriding process by high voltage, low air pressure and soaking in closed furnace.

30. The paper makes a primary approach to a two big problems on the long period and the heavy brittleness resulting from gas nitriding process.

31. It is discovered that commercial pure titanium has good biocompatibility after plasma nitriding, the formed blood vascularized tissue reaction layer is thin and cell reaction is good.

32. Electric discharge machining , creping, and blasting are possible after welding, as well as heat - treating and nitriding.

33. The valve rod (steel 35)is nitrided in the fluid soft nitriding process, the main material being made up of urea.

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34. This can be done carburizing, cyaniding, nitriding, carbonitriding, induction hardening, and flame hardening.

35. The heat treatment technology of carbo - nitriding of steel has the characteristic of lower treatment temperature and direct quenching.

36. This paper introduces the new technology of salt bath soft nitriding treatment developed on the imported salt bath nitriding production line of the Styr engine crankshaft .

37. The plasma nitriding will improve on surface hardness and wear resistance of the piston ring.

38. Using nitriding furnace in manufacturing calcium cyanamide has a unique advantage.

39. Spalling was a major form of contact fatigue failures in nitriding steel.

40. The surface coating of titanium coating coating, coating, nitriding, chromium nitride coating.

41. Effect of ion nitriding process for titanium materials on its microstructure and properties have been studied.

42. The gas nitriding process control systems are designed to provide a fully automatic operation. The entire nitriding process is executed in an automatic, self-adjusting and operator independent manner.

43. Consequently, the oxidation process is mainly carried in the special designed furnace and the nitriding process is carried in a commercial plasma nitriding furnace respectively.

44. Nitriding gateoxidic lager and increasing oxidic temperature so as to improve the quality of gate oxidiclayer and enhance the resisting of hot carriers effect.

45. Liquid nitriding adds more nitrogen and less carbon than either cyaniding or carburizing in cyanide baths.

46. The distortion law of high-speed diesel crankshafts during nitriding was studied. The influence of crankshafts shape and nitriding process parameters on the distortion was analyzed.