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1. Nonsymmetrical carburizing may also contribute to distortion.

2. The main production of solid carburizing agent.

3. It can be considered a multi stage carburizing.

4. The carburizing process of steel 20 with and without RE addition was investigated.

5. Abstract: The carburizing process of steel 20 with and without RE addition was investigated.

6. As a raw gas for carburizing, it is necessary to desulphurize in the gas sufficiently.

7. Carburizing, cyaniding , and induction hardening are some of the processes commonly used to produce the case hardening effect.

8. To know heat treatment of vacuum, carbonnitriding, carburizing and protected quenching etc.

9. Steel for carburizing is usually a low-carbon steel of about 0.15% carbon that would not in itself responds appreciably to heat treatment.

10. A newly developed BBH pre - vacuum pumping carburizing furnace has been introduced in this paper.

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

12. The amount and the depth of carburizing on the casting surface can be obtained approximately by a calculating formula.

13. RE - Carburizing test with solid powder earth accelerant in the sealing box multi - purpose furnace was in progress.

14. Cylinder with carburizing treatment, in order to increase the wear resistance products.

15. The mechanism of enhancing effect of RE on carburizing process was discussed.

16. The better technological process now is the step control of carbon potential during carburizing.

17. 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.

18. 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.

19. Through EPMA and EDS analysis further identified the possibility of carburizing, carbonitriding and infiltration of elements distribution a more even.

20. The residual life of the tubes is estimated based on the carburizing damage analysis.

21. Abstract: The relationship between fatigue limit and prior austenite grain size has been studied by means of rotating bending fatigue tests for microalloyed case carburizing steels.

22. The better technological process now is the step control of carbon potential during carburizing. It can be considered a multi stage carburation.

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

24. The regularity and the control of the distortion in carburizing process are also preliminarily investigated.

25. Special temperature sensor must be developed in order to meet the need of specific environment including highly erodent, heat melt, vacuum and carburizing etc. die characteristic.

26. A new forge residual heat isothermal normalizing technique for alloy carburizing steel is put forward.

27. The paper researches the effect of rare earths on carburized layer during carburizing operation.

28. Effect of silicon on microstructure and properties of meta-bainitic carburizing steel were studied.

29. Carburizing of steel products used to carry out the role of carbon compounds known as carburizing agent.

30. Taking the automotive rear axle gear as an example, the design and adjusting of nitrogen-based atmosphere carburizing process were conducted on the new-built mult-purpose chamber furnace.