| Autor: |
Eismondt, Yu. G., Zakharov, A. V., Gol'dshtein, M. I., Kolosova, É. L., Shcherbakova, L. P. |
| Zdroj: |
Metal Science and Heat Treatment; November 1990, Vol. 32 Issue: 11 p829-834, 6p |
| Abstrakt: |
1.to obtain a satisfactory distribution of cooling rates in PK-2 media, it is necessary to observe the following procedure for medium preparation prior to quenching; aging of the concentrate by immersing heated metal in the bath to raise the temperature of the solution for a brief time almost to its boiling point, the addition of water to the solution to the required concentration, and then an alkali to achieve a pH=6–7.2.The cooling capacity of PK-2 solutions depends on their concentration; at temperatures of less than 400°C for solutions of any concentration, the cooling rate in the PK-2 medium is significantly higher than that in quenching oil.3.The cooling capacity of the PK-2 quenching medium is determined to a large degree by the temperature of the bath. It is necessary to specify an effective cooling system for the quenching medium to prevent unfavorable consequences of a high-temperature bath. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
Full text from SpringerLink